<article>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#article10_03_06_0232214</id>
	<title>Could the Tumbleweed Rover Dominate Mars?</title>
	<author>timothy</author>
	<datestamp>1267866060000</datestamp>
	<htmltext><a href="http://www.astroengine.com/" rel="nofollow">astroengine</a> writes <i>"Mars has been visited by orbiters, landers and rovers, but could the future of Martian exploration be inspired by a wind-blown sphere? NASA and other research institutions have been developing the Mars Tumbleweed rover for the last decade, but with the help of the Planetary Science Institute, <a href="http://news.discovery.com/space/could-the-tumbleweed-rover-dominate-mars.html">the Tumbleweed is now vying for some serious funding</a> to further develop the technologies required. Although the Tumbleweed would be wholly dependent on the prevailing winds on the Martian surface, the lightweight and relatively cheap design could lead the way <a href="http://news.discovery.com/videos/space-tumbleweed-rovers-could-explore-mars.html">for a 'swarm' of independent Tumbleweeds to explore vast regions of the planet</a> (video link). In 2003 and 2004, NASA even tested an inflatable Tumbleweed prototype on Greenland and Antarctica &mdash; it traversed hundreds of miles with ease, continually relaying location and environmental data."</i></htmltext>
<tokenext>astroengine writes " Mars has been visited by orbiters , landers and rovers , but could the future of Martian exploration be inspired by a wind-blown sphere ?
NASA and other research institutions have been developing the Mars Tumbleweed rover for the last decade , but with the help of the Planetary Science Institute , the Tumbleweed is now vying for some serious funding to further develop the technologies required .
Although the Tumbleweed would be wholly dependent on the prevailing winds on the Martian surface , the lightweight and relatively cheap design could lead the way for a 'swarm ' of independent Tumbleweeds to explore vast regions of the planet ( video link ) .
In 2003 and 2004 , NASA even tested an inflatable Tumbleweed prototype on Greenland and Antarctica    it traversed hundreds of miles with ease , continually relaying location and environmental data .
"</tokentext>
<sentencetext>astroengine writes "Mars has been visited by orbiters, landers and rovers, but could the future of Martian exploration be inspired by a wind-blown sphere?
NASA and other research institutions have been developing the Mars Tumbleweed rover for the last decade, but with the help of the Planetary Science Institute, the Tumbleweed is now vying for some serious funding to further develop the technologies required.
Although the Tumbleweed would be wholly dependent on the prevailing winds on the Martian surface, the lightweight and relatively cheap design could lead the way for a 'swarm' of independent Tumbleweeds to explore vast regions of the planet (video link).
In 2003 and 2004, NASA even tested an inflatable Tumbleweed prototype on Greenland and Antarctica — it traversed hundreds of miles with ease, continually relaying location and environmental data.
"</sentencetext>
</article>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31381042</id>
	<title>New System?</title>
	<author>Nethead</author>
	<datestamp>1267894260000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>2</modscore>
	<htmltext><p>So we need a new system because the current rover design failed so catastrophically?<nobr> <wbr></nobr>/snark</p><p>We have an outstanding current rover design and I'm sure that there are many small tweaks NASA would love to include in a Ver. 2.  Let's just send a few more siblings of Spirit and Opportunity up to new areas.  Maybe one (ok, two) designed to go pin god-damn medals on Spirit &amp; Oppy.  Let's build upon success.</p></htmltext>
<tokenext>So we need a new system because the current rover design failed so catastrophically ?
/snarkWe have an outstanding current rover design and I 'm sure that there are many small tweaks NASA would love to include in a Ver .
2. Let 's just send a few more siblings of Spirit and Opportunity up to new areas .
Maybe one ( ok , two ) designed to go pin god-damn medals on Spirit &amp; Oppy .
Let 's build upon success .</tokentext>
<sentencetext>So we need a new system because the current rover design failed so catastrophically?
/snarkWe have an outstanding current rover design and I'm sure that there are many small tweaks NASA would love to include in a Ver.
2.  Let's just send a few more siblings of Spirit and Opportunity up to new areas.
Maybe one (ok, two) designed to go pin god-damn medals on Spirit &amp; Oppy.
Let's build upon success.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31383940</id>
	<title>Roving hoards of tumbleweeds on a Martian 'net ...</title>
	<author>Anonymous</author>
	<datestamp>1267873560000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>Some initial thoughts, ideas, and cogitations on this concept if you don't mind<nobr> <wbr></nobr>....<br>Regarding the potential puncturability of the enclosure, it doesn't need to inflate if it's on a spring-loaded frame. It's really just there as a sail.<br>Perhaps also, the material of the enclosure could potentially BE the solar array and double as power-source for the data package. (???)<br>If the data package, i.e. power, sensors, recorders, and transmitters, could be made small and light enough, they could just mount it in a light-weight spring loaded bucky-ball frame, say of carbon fiber or something, with a skin of 'some sort'<nobr> <wbr></nobr>;P for a sail as i said. It would just be a matter of making enough sail surface area that the winds on Mars could provide enough force to push around the given weight of the craft; so obviously lighter is better. But, the winds on Mars CAN get pretty gusty, as we've seen as per the dust storms and clear duning action.<br>Also, I could see sending multiple tumbleweeds per mission, and de-orbiting them such that they come down in separate regions. Given a spring-loaded frame, the individual tumbleweeds could be packed most efficiently into a very small package. Perhaps enough to fit three or so per single-rocket launch, saving money AND orbital coincidentality.<br>Each would need a small heat-sheild for initially braking orbital speed (most weight?), but once lower in the atmosphere, they could deploy a small parachute for the primary , and 'pop-open' to assist with drag, then 'bounce in' as we've done with other landers; only the spring loaded frame acts as the landing cushion.<br>Now, if we land stationary reciever/transmitter stations at several locations around Mars, each tumbleweed would only have to provide enough broadcast strength to burst-transmit to the nearest 'base-station', plus storage capacity to store data until the next opportunity to do so. Each base-station would transmit ITS stored data to one or more satellites which would in turn transmit the data back to Earth. Maybe we could even re-program certain satellites we ALREADY have in orbit to accept data from these base stations.<br>The number of satellites need not be many (the most expensive part of the equation I'd think), as the base stations AND tumbleweeds could easily have enough storage capacity given current memory technologies -- even flash-RAM ala USB memory sticks so the tumbleweeds for instance could go into power-saving modes without loss of recorded data; energy efficiency on the tumbleweeds themselves would be paramount.<br>Imagine it. A multitude of independently randomly roving tumbleweeds, blowing about and storing data until they got close enough to a base station to burst their observations to, with the base stations hooked into our orbital network of satellites.<nobr> <wbr></nobr>... ahhhhh<nobr> <wbr></nobr>....<br>That's all from me for now, thanks for listening<nobr> <wbr></nobr>...<nobr> <wbr></nobr>;D</p></htmltext>
<tokenext>Some initial thoughts , ideas , and cogitations on this concept if you do n't mind ....Regarding the potential puncturability of the enclosure , it does n't need to inflate if it 's on a spring-loaded frame .
It 's really just there as a sail.Perhaps also , the material of the enclosure could potentially BE the solar array and double as power-source for the data package .
( ? ? ? ) If the data package , i.e .
power , sensors , recorders , and transmitters , could be made small and light enough , they could just mount it in a light-weight spring loaded bucky-ball frame , say of carbon fiber or something , with a skin of 'some sort ' ; P for a sail as i said .
It would just be a matter of making enough sail surface area that the winds on Mars could provide enough force to push around the given weight of the craft ; so obviously lighter is better .
But , the winds on Mars CAN get pretty gusty , as we 've seen as per the dust storms and clear duning action.Also , I could see sending multiple tumbleweeds per mission , and de-orbiting them such that they come down in separate regions .
Given a spring-loaded frame , the individual tumbleweeds could be packed most efficiently into a very small package .
Perhaps enough to fit three or so per single-rocket launch , saving money AND orbital coincidentality.Each would need a small heat-sheild for initially braking orbital speed ( most weight ?
) , but once lower in the atmosphere , they could deploy a small parachute for the primary , and 'pop-open ' to assist with drag , then 'bounce in ' as we 've done with other landers ; only the spring loaded frame acts as the landing cushion.Now , if we land stationary reciever/transmitter stations at several locations around Mars , each tumbleweed would only have to provide enough broadcast strength to burst-transmit to the nearest 'base-station ' , plus storage capacity to store data until the next opportunity to do so .
Each base-station would transmit ITS stored data to one or more satellites which would in turn transmit the data back to Earth .
Maybe we could even re-program certain satellites we ALREADY have in orbit to accept data from these base stations.The number of satellites need not be many ( the most expensive part of the equation I 'd think ) , as the base stations AND tumbleweeds could easily have enough storage capacity given current memory technologies -- even flash-RAM ala USB memory sticks so the tumbleweeds for instance could go into power-saving modes without loss of recorded data ; energy efficiency on the tumbleweeds themselves would be paramount.Imagine it .
A multitude of independently randomly roving tumbleweeds , blowing about and storing data until they got close enough to a base station to burst their observations to , with the base stations hooked into our orbital network of satellites .
... ahhhhh ....That 's all from me for now , thanks for listening ... ; D</tokentext>
<sentencetext>Some initial thoughts, ideas, and cogitations on this concept if you don't mind ....Regarding the potential puncturability of the enclosure, it doesn't need to inflate if it's on a spring-loaded frame.
It's really just there as a sail.Perhaps also, the material of the enclosure could potentially BE the solar array and double as power-source for the data package.
(???)If the data package, i.e.
power, sensors, recorders, and transmitters, could be made small and light enough, they could just mount it in a light-weight spring loaded bucky-ball frame, say of carbon fiber or something, with a skin of 'some sort' ;P for a sail as i said.
It would just be a matter of making enough sail surface area that the winds on Mars could provide enough force to push around the given weight of the craft; so obviously lighter is better.
But, the winds on Mars CAN get pretty gusty, as we've seen as per the dust storms and clear duning action.Also, I could see sending multiple tumbleweeds per mission, and de-orbiting them such that they come down in separate regions.
Given a spring-loaded frame, the individual tumbleweeds could be packed most efficiently into a very small package.
Perhaps enough to fit three or so per single-rocket launch, saving money AND orbital coincidentality.Each would need a small heat-sheild for initially braking orbital speed (most weight?
), but once lower in the atmosphere, they could deploy a small parachute for the primary , and 'pop-open' to assist with drag, then 'bounce in' as we've done with other landers; only the spring loaded frame acts as the landing cushion.Now, if we land stationary reciever/transmitter stations at several locations around Mars, each tumbleweed would only have to provide enough broadcast strength to burst-transmit to the nearest 'base-station', plus storage capacity to store data until the next opportunity to do so.
Each base-station would transmit ITS stored data to one or more satellites which would in turn transmit the data back to Earth.
Maybe we could even re-program certain satellites we ALREADY have in orbit to accept data from these base stations.The number of satellites need not be many (the most expensive part of the equation I'd think), as the base stations AND tumbleweeds could easily have enough storage capacity given current memory technologies -- even flash-RAM ala USB memory sticks so the tumbleweeds for instance could go into power-saving modes without loss of recorded data; energy efficiency on the tumbleweeds themselves would be paramount.Imagine it.
A multitude of independently randomly roving tumbleweeds, blowing about and storing data until they got close enough to a base station to burst their observations to, with the base stations hooked into our orbital network of satellites.
... ahhhhh ....That's all from me for now, thanks for listening ... ;D</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31380482</id>
	<title>Rover?</title>
	<author>schmidt349</author>
	<datestamp>1267888620000</datestamp>
	<modclass>None</modclass>
	<modscore>2</modscore>
	<htmltext>Doesn't the <a href="http://blogs.discovery.com/.a/6a00d8341bf67c53ef0120a8fd0b35970b-pi" title="discovery.com">Tumbleweed prototype in this photo</a> [discovery.com] look suspiciously like a certain Number 6-devouring border guard? What are these scientists really planning?</htmltext>
<tokenext>Does n't the Tumbleweed prototype in this photo [ discovery.com ] look suspiciously like a certain Number 6-devouring border guard ?
What are these scientists really planning ?</tokentext>
<sentencetext>Doesn't the Tumbleweed prototype in this photo [discovery.com] look suspiciously like a certain Number 6-devouring border guard?
What are these scientists really planning?</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31381890</id>
	<title>Re:Fitting, so it will match the economy</title>
	<author>Anonymous</author>
	<datestamp>1267902720000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>Dear Oxford\_Comma\_Lover (1679530).</p><p>you are obviously poorly informed. Perhaps you should read up on what economists say, rather than political pundits and activists. For example Krugman.</p><p>In very brief:</p><p>1. The deepest foundation of the crisis is that the entirety of the western world has been living on a credit bubble, spending beyond their means and exporting employment to China. This is partly "due to" greater stability leading to reduced risk premiums and more benign statistical models, meaning that borrowing costs fall and people can get loans and many multiples of their salaries. Which again partly is "due to" a lack of extreme stress testing performed by credit ratings agencies as much as by the US government - nobody made any assumptions that both Republicans and Democrats did not jointly and totally fully made. And this follows from a macroeconomic paradigm that you should set interest rates to target inflation at a steady low rate, which was destroyed by the fact that artificially depressed Chinese prices had a large NEGATIVE effect on imported product prices, so that when low interest rates led to a giant POSITIVE effect on asset/mortgage prices, it all looked fine and dandy and averaged out to 1.5\%. No reason to raise interest rates in 2003, no siree.</p><p>2. The creation of collateralized default obligations was the most extreme form of financial instrument, because they were highly leveraged to a continuous benign environment. Effectively, as long as things stayed stable, they would keep their value and e.g. an AAA-rated instrument have a 0.1\% default probability, much like industrial companies with an AAA rating have historically had a 0.1\% default probability. The problem was that any minor wobble in the underlying statistical assumptions would wipe out a lot of their value - and overnight, because of continuous pricing. This wobble was when the US raised interest rates.</p><p>3. Effectively, this wobble destabilised the markets, and required the bailouts etc. Now, 'too big to fail' is largely wrong - although there were significant linkages between financial institutions that meant that 'if one falls they probably all fall', consider this: The scenario for banks is that, a decline in the assets of banks (i.e. mortgages and people who owe them money suddenly looking less likely to pay up) would threaten to make these assets smaller than the liabilities of banks (i.e. the money people have in banks and what they have borrowed from the market) then the government had to enter to bail them out, and to do that, take up a lot of debt.</p><p>Now, firstly, the size of the bailout isn't money the banks have run away with. If the government spends $500bn, that doesn't imply the banks have had profits of $500bn. In the same way that, if a bank gives a loan of $1m and charges a margin of 0.5\% between what they borrow at and what they lend at, then if the borrower disappears/goes bust/house value goes to 0, you will not "recover" $1m by looking to take the margin of $50,000. It's physically impossible to create a 'bailout fund' by taxing the profits of banks, because even 100\% of those profits wouldn't have been enough. The beneficiaries of the market has been companies and mortage borrowers as much as banks.</p><p>Secondly, if there had been 1000 small banks instead of 1 bank, and they HAD failed, then the effect would simply be that people who had money in the bank would have lost their money. The FDIC would have been too small to rescue those 1000 banks (it can barely handle the current banks, and that's excluding the megabanks) and the government would have had to borrow to reimburse the bank depositors. Unless you just say that "Too bad, you have lost your money", which incidentally is company working capital, pension funds and Grandma Bess's retirement savings</p><p>Of course, you can say that "without the CDOs, the credit bubble would not have burst, so it's all due to the CDOs". This ignores the problem that the credit bubble would have burst sooner or later, and the housing market explode</p></htmltext>
<tokenext>Dear Oxford \ _Comma \ _Lover ( 1679530 ) .you are obviously poorly informed .
Perhaps you should read up on what economists say , rather than political pundits and activists .
For example Krugman.In very brief : 1 .
The deepest foundation of the crisis is that the entirety of the western world has been living on a credit bubble , spending beyond their means and exporting employment to China .
This is partly " due to " greater stability leading to reduced risk premiums and more benign statistical models , meaning that borrowing costs fall and people can get loans and many multiples of their salaries .
Which again partly is " due to " a lack of extreme stress testing performed by credit ratings agencies as much as by the US government - nobody made any assumptions that both Republicans and Democrats did not jointly and totally fully made .
And this follows from a macroeconomic paradigm that you should set interest rates to target inflation at a steady low rate , which was destroyed by the fact that artificially depressed Chinese prices had a large NEGATIVE effect on imported product prices , so that when low interest rates led to a giant POSITIVE effect on asset/mortgage prices , it all looked fine and dandy and averaged out to 1.5 \ % .
No reason to raise interest rates in 2003 , no siree.2 .
The creation of collateralized default obligations was the most extreme form of financial instrument , because they were highly leveraged to a continuous benign environment .
Effectively , as long as things stayed stable , they would keep their value and e.g .
an AAA-rated instrument have a 0.1 \ % default probability , much like industrial companies with an AAA rating have historically had a 0.1 \ % default probability .
The problem was that any minor wobble in the underlying statistical assumptions would wipe out a lot of their value - and overnight , because of continuous pricing .
This wobble was when the US raised interest rates.3 .
Effectively , this wobble destabilised the markets , and required the bailouts etc .
Now , 'too big to fail ' is largely wrong - although there were significant linkages between financial institutions that meant that 'if one falls they probably all fall ' , consider this : The scenario for banks is that , a decline in the assets of banks ( i.e .
mortgages and people who owe them money suddenly looking less likely to pay up ) would threaten to make these assets smaller than the liabilities of banks ( i.e .
the money people have in banks and what they have borrowed from the market ) then the government had to enter to bail them out , and to do that , take up a lot of debt.Now , firstly , the size of the bailout is n't money the banks have run away with .
If the government spends $ 500bn , that does n't imply the banks have had profits of $ 500bn .
In the same way that , if a bank gives a loan of $ 1m and charges a margin of 0.5 \ % between what they borrow at and what they lend at , then if the borrower disappears/goes bust/house value goes to 0 , you will not " recover " $ 1m by looking to take the margin of $ 50,000 .
It 's physically impossible to create a 'bailout fund ' by taxing the profits of banks , because even 100 \ % of those profits would n't have been enough .
The beneficiaries of the market has been companies and mortage borrowers as much as banks.Secondly , if there had been 1000 small banks instead of 1 bank , and they HAD failed , then the effect would simply be that people who had money in the bank would have lost their money .
The FDIC would have been too small to rescue those 1000 banks ( it can barely handle the current banks , and that 's excluding the megabanks ) and the government would have had to borrow to reimburse the bank depositors .
Unless you just say that " Too bad , you have lost your money " , which incidentally is company working capital , pension funds and Grandma Bess 's retirement savingsOf course , you can say that " without the CDOs , the credit bubble would not have burst , so it 's all due to the CDOs " .
This ignores the problem that the credit bubble would have burst sooner or later , and the housing market explode</tokentext>
<sentencetext>Dear Oxford\_Comma\_Lover (1679530).you are obviously poorly informed.
Perhaps you should read up on what economists say, rather than political pundits and activists.
For example Krugman.In very brief:1.
The deepest foundation of the crisis is that the entirety of the western world has been living on a credit bubble, spending beyond their means and exporting employment to China.
This is partly "due to" greater stability leading to reduced risk premiums and more benign statistical models, meaning that borrowing costs fall and people can get loans and many multiples of their salaries.
Which again partly is "due to" a lack of extreme stress testing performed by credit ratings agencies as much as by the US government - nobody made any assumptions that both Republicans and Democrats did not jointly and totally fully made.
And this follows from a macroeconomic paradigm that you should set interest rates to target inflation at a steady low rate, which was destroyed by the fact that artificially depressed Chinese prices had a large NEGATIVE effect on imported product prices, so that when low interest rates led to a giant POSITIVE effect on asset/mortgage prices, it all looked fine and dandy and averaged out to 1.5\%.
No reason to raise interest rates in 2003, no siree.2.
The creation of collateralized default obligations was the most extreme form of financial instrument, because they were highly leveraged to a continuous benign environment.
Effectively, as long as things stayed stable, they would keep their value and e.g.
an AAA-rated instrument have a 0.1\% default probability, much like industrial companies with an AAA rating have historically had a 0.1\% default probability.
The problem was that any minor wobble in the underlying statistical assumptions would wipe out a lot of their value - and overnight, because of continuous pricing.
This wobble was when the US raised interest rates.3.
Effectively, this wobble destabilised the markets, and required the bailouts etc.
Now, 'too big to fail' is largely wrong - although there were significant linkages between financial institutions that meant that 'if one falls they probably all fall', consider this: The scenario for banks is that, a decline in the assets of banks (i.e.
mortgages and people who owe them money suddenly looking less likely to pay up) would threaten to make these assets smaller than the liabilities of banks (i.e.
the money people have in banks and what they have borrowed from the market) then the government had to enter to bail them out, and to do that, take up a lot of debt.Now, firstly, the size of the bailout isn't money the banks have run away with.
If the government spends $500bn, that doesn't imply the banks have had profits of $500bn.
In the same way that, if a bank gives a loan of $1m and charges a margin of 0.5\% between what they borrow at and what they lend at, then if the borrower disappears/goes bust/house value goes to 0, you will not "recover" $1m by looking to take the margin of $50,000.
It's physically impossible to create a 'bailout fund' by taxing the profits of banks, because even 100\% of those profits wouldn't have been enough.
The beneficiaries of the market has been companies and mortage borrowers as much as banks.Secondly, if there had been 1000 small banks instead of 1 bank, and they HAD failed, then the effect would simply be that people who had money in the bank would have lost their money.
The FDIC would have been too small to rescue those 1000 banks (it can barely handle the current banks, and that's excluding the megabanks) and the government would have had to borrow to reimburse the bank depositors.
Unless you just say that "Too bad, you have lost your money", which incidentally is company working capital, pension funds and Grandma Bess's retirement savingsOf course, you can say that "without the CDOs, the credit bubble would not have burst, so it's all due to the CDOs".
This ignores the problem that the credit bubble would have burst sooner or later, and the housing market explode</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31380522</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31381708</id>
	<title>Re:Two problems</title>
	<author>Nyeerrmm</author>
	<datestamp>1267900860000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>2</modscore>
	<htmltext><p>This would be a terrible way to do a single vehicle.  However, they want to 'swarm' these instead.  While each individual vehicle may be limited, if you have hundreds canvasing a region, correlating the data between each 'tumbleweed' would make the information more valuable than the mere sum of its parts.</p><p>I don't think this replaces something like the MERs, but rather complements them.</p></htmltext>
<tokenext>This would be a terrible way to do a single vehicle .
However , they want to 'swarm ' these instead .
While each individual vehicle may be limited , if you have hundreds canvasing a region , correlating the data between each 'tumbleweed ' would make the information more valuable than the mere sum of its parts.I do n't think this replaces something like the MERs , but rather complements them .</tokentext>
<sentencetext>This would be a terrible way to do a single vehicle.
However, they want to 'swarm' these instead.
While each individual vehicle may be limited, if you have hundreds canvasing a region, correlating the data between each 'tumbleweed' would make the information more valuable than the mere sum of its parts.I don't think this replaces something like the MERs, but rather complements them.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379610</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379934</id>
	<title>A slight design flaw</title>
	<author>Anonymous</author>
	<datestamp>1267878840000</datestamp>
	<modclass>Funny</modclass>
	<modscore>1</modscore>
	<htmltext><p>Day one the tumble weed rover heroically rolls across the Martian terrain. Day two the rover discoveries a previously unknown Martian crater. Day three examines bottom of crater, day four same, day five same,<nobr> <wbr></nobr>..., day 365 rover celibrates it's first year on Mars from the bottom of it's newly discovered crater.</p></htmltext>
<tokenext>Day one the tumble weed rover heroically rolls across the Martian terrain .
Day two the rover discoveries a previously unknown Martian crater .
Day three examines bottom of crater , day four same , day five same , ... , day 365 rover celibrates it 's first year on Mars from the bottom of it 's newly discovered crater .</tokentext>
<sentencetext>Day one the tumble weed rover heroically rolls across the Martian terrain.
Day two the rover discoveries a previously unknown Martian crater.
Day three examines bottom of crater, day four same, day five same, ..., day 365 rover celibrates it's first year on Mars from the bottom of it's newly discovered crater.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31380608</id>
	<title>Re:If it's tumbing anyway...</title>
	<author>Anonymous</author>
	<datestamp>1267889940000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext>The only thing that blows harder then mars is<nobr> <wbr></nobr>.... your mama</htmltext>
<tokenext>The only thing that blows harder then mars is .... your mama</tokentext>
<sentencetext>The only thing that blows harder then mars is .... your mama</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379744</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31386034</id>
	<title>Re:Is the atmosphere dense enough?</title>
	<author>Mantis8</author>
	<datestamp>1267891800000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>This is a brilliant idea.  Perhaps the lack of control over the "craft" would at least partially be made up for in the larger numbers of craft.  I"m assuming they would be comparatively low cost for each one (due to the budget crunch).  At any rate, I think they would be able to get large amounts of valuable data over vast areas of Mars.  Maybe they could network them together and compare/combine data over seasons and get some long-term information as well.</htmltext>
<tokenext>This is a brilliant idea .
Perhaps the lack of control over the " craft " would at least partially be made up for in the larger numbers of craft .
I " m assuming they would be comparatively low cost for each one ( due to the budget crunch ) .
At any rate , I think they would be able to get large amounts of valuable data over vast areas of Mars .
Maybe they could network them together and compare/combine data over seasons and get some long-term information as well .</tokentext>
<sentencetext>This is a brilliant idea.
Perhaps the lack of control over the "craft" would at least partially be made up for in the larger numbers of craft.
I"m assuming they would be comparatively low cost for each one (due to the budget crunch).
At any rate, I think they would be able to get large amounts of valuable data over vast areas of Mars.
Maybe they could network them together and compare/combine data over seasons and get some long-term information as well.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379862</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31381618</id>
	<title>Re:How appropriate...</title>
	<author>Nyeerrmm</author>
	<datestamp>1267899960000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>This "tumbleweed" concept is cheap and affordable, may be a little unpredictable in the direction it will go, but will ultimately allow many more vehicles doing a lot more exploration in aggregate.</p><p>So yes, this is exactly what will be left of the space program after the administration is done.  Sounds like a good thing to me.</p></htmltext>
<tokenext>This " tumbleweed " concept is cheap and affordable , may be a little unpredictable in the direction it will go , but will ultimately allow many more vehicles doing a lot more exploration in aggregate.So yes , this is exactly what will be left of the space program after the administration is done .
Sounds like a good thing to me .</tokentext>
<sentencetext>This "tumbleweed" concept is cheap and affordable, may be a little unpredictable in the direction it will go, but will ultimately allow many more vehicles doing a lot more exploration in aggregate.So yes, this is exactly what will be left of the space program after the administration is done.
Sounds like a good thing to me.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379580</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31414166</id>
	<title>Tumbleweed lady</title>
	<author>Anonymous</author>
	<datestamp>1268152380000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>At least some lady is making big bucks selling NASA their spare-parts.(http://www.digitaljournal.com/article/246633/Kansas\_Woman\_Makes\_Money\_Selling\_Tumbleweeds)</p></htmltext>
<tokenext>At least some lady is making big bucks selling NASA their spare-parts .
( http : //www.digitaljournal.com/article/246633/Kansas \ _Woman \ _Makes \ _Money \ _Selling \ _Tumbleweeds )</tokentext>
<sentencetext>At least some lady is making big bucks selling NASA their spare-parts.
(http://www.digitaljournal.com/article/246633/Kansas\_Woman\_Makes\_Money\_Selling\_Tumbleweeds)</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31393512</id>
	<title>Mars Trash Vortex</title>
	<author>Anonymous</author>
	<datestamp>1267955400000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>Isn't there a danger that all the tumbleweed rovers will end up in the same crater/rift or valley ?<br>Somewhat like the refuse that ends up in the Pacific Trash Vortex ?</p></htmltext>
<tokenext>Is n't there a danger that all the tumbleweed rovers will end up in the same crater/rift or valley ? Somewhat like the refuse that ends up in the Pacific Trash Vortex ?</tokentext>
<sentencetext>Isn't there a danger that all the tumbleweed rovers will end up in the same crater/rift or valley ?Somewhat like the refuse that ends up in the Pacific Trash Vortex ?</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31380522</id>
	<title>Re:Fitting, so it will match the economy</title>
	<author>Oxford\_Comma\_Lover</author>
	<datestamp>1267889040000</datestamp>
	<modclass>Insightful</modclass>
	<modscore>4</modscore>
	<htmltext><p><i>&gt; That is fitting, so the space program will match the economy the republicans left the current administration.</i></p><p>Dear SmallFurryCreature (593017),</p><p>The economy is not the fault of any given administration.  The most recent economic crisis was due primarily to the actions of a few people in the NY financial district, and to the failure of the many to realize how broad the consequences would be when that group inevitably failed.  It was slightly exacerbated by widely-performed mortgage fraud, but it was really a question of a few guys on wall street who decided to start trading credit-default swaps and the like irresponsibly.</p><p>Everyone blames the economy on the administration in power, to the extent where any major event on the market is very likely to determine the outcome of a Presidential Election.  This is an irrational reaction on the part of the people, but it occurs anyway.  The people in government with the most power for this kind of thing are actually the senators and representatives, but they rarely regulate the banking segment of the economy since it gives them money.  Most of a senator's day is raising money.  If he has two minutes between events, he's on the phone with donors.  If he's sitting in the back of his car as someone drives him to work, he's on the phone with donors.  Numerous donors are in finance.  Therefore it takes something extraordinary for the government to even consider regulating finance.</p><p>Regards,</p><p>OxfordCommaLover</p></htmltext>
<tokenext>&gt; That is fitting , so the space program will match the economy the republicans left the current administration.Dear SmallFurryCreature ( 593017 ) ,The economy is not the fault of any given administration .
The most recent economic crisis was due primarily to the actions of a few people in the NY financial district , and to the failure of the many to realize how broad the consequences would be when that group inevitably failed .
It was slightly exacerbated by widely-performed mortgage fraud , but it was really a question of a few guys on wall street who decided to start trading credit-default swaps and the like irresponsibly.Everyone blames the economy on the administration in power , to the extent where any major event on the market is very likely to determine the outcome of a Presidential Election .
This is an irrational reaction on the part of the people , but it occurs anyway .
The people in government with the most power for this kind of thing are actually the senators and representatives , but they rarely regulate the banking segment of the economy since it gives them money .
Most of a senator 's day is raising money .
If he has two minutes between events , he 's on the phone with donors .
If he 's sitting in the back of his car as someone drives him to work , he 's on the phone with donors .
Numerous donors are in finance .
Therefore it takes something extraordinary for the government to even consider regulating finance.Regards,OxfordCommaLover</tokentext>
<sentencetext>&gt; That is fitting, so the space program will match the economy the republicans left the current administration.Dear SmallFurryCreature (593017),The economy is not the fault of any given administration.
The most recent economic crisis was due primarily to the actions of a few people in the NY financial district, and to the failure of the many to realize how broad the consequences would be when that group inevitably failed.
It was slightly exacerbated by widely-performed mortgage fraud, but it was really a question of a few guys on wall street who decided to start trading credit-default swaps and the like irresponsibly.Everyone blames the economy on the administration in power, to the extent where any major event on the market is very likely to determine the outcome of a Presidential Election.
This is an irrational reaction on the part of the people, but it occurs anyway.
The people in government with the most power for this kind of thing are actually the senators and representatives, but they rarely regulate the banking segment of the economy since it gives them money.
Most of a senator's day is raising money.
If he has two minutes between events, he's on the phone with donors.
If he's sitting in the back of his car as someone drives him to work, he's on the phone with donors.
Numerous donors are in finance.
Therefore it takes something extraordinary for the government to even consider regulating finance.Regards,OxfordCommaLover</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379760</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379698</id>
	<title>Re:How appropriate...</title>
	<author>Anonymous</author>
	<datestamp>1267872420000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>4</modscore>
	<htmltext><p>I'm not even going to bash you cause I've seen so much of these kinds of snarky comments lately that I've come to expect them.  But if you could be so kind, could you please tell me where you're getting your opinion from?  I mean, I assume you're not actually a worker in Florida or Alabama who has a vested interest in extending the killed-14-but-plenty-left Shuttle or pretending that Canstellation was ever going anywhere, so obviously some pundit somewhere has filled your head with this baffling opinion so who was it?  Was it Dr. Harrison Schmitt speaking at the Institute of Human and Machine Cognition in Florida (what the hell kind of a platform is that anyway?) with his absurd comments about China and Russia - the comments about Russia being more absurd than the ones about China but only slightly - which basically amounted to "reds up the beds and now in space!!"  Or was it Andy Pasztor at the Wall Street Journal who has done nothing but demonstrate just how long journalism has sunk to, misrepresenting first Burt Rutan's comments - causing Burt to publish his communications in full and with not even an apology from the WSJ - and then misrepresenting an internal NASA memo and blatantly fabricating quotes saying Bolden was seeing a "Plan B" prompting Bolden to release a denial.. and again, without even an apology from the WSJ.  Ironically, one place you couldn't be getting this nonsense from is Fox News...</p></htmltext>
<tokenext>I 'm not even going to bash you cause I 've seen so much of these kinds of snarky comments lately that I 've come to expect them .
But if you could be so kind , could you please tell me where you 're getting your opinion from ?
I mean , I assume you 're not actually a worker in Florida or Alabama who has a vested interest in extending the killed-14-but-plenty-left Shuttle or pretending that Canstellation was ever going anywhere , so obviously some pundit somewhere has filled your head with this baffling opinion so who was it ?
Was it Dr. Harrison Schmitt speaking at the Institute of Human and Machine Cognition in Florida ( what the hell kind of a platform is that anyway ?
) with his absurd comments about China and Russia - the comments about Russia being more absurd than the ones about China but only slightly - which basically amounted to " reds up the beds and now in space ! !
" Or was it Andy Pasztor at the Wall Street Journal who has done nothing but demonstrate just how long journalism has sunk to , misrepresenting first Burt Rutan 's comments - causing Burt to publish his communications in full and with not even an apology from the WSJ - and then misrepresenting an internal NASA memo and blatantly fabricating quotes saying Bolden was seeing a " Plan B " prompting Bolden to release a denial.. and again , without even an apology from the WSJ .
Ironically , one place you could n't be getting this nonsense from is Fox News.. .</tokentext>
<sentencetext>I'm not even going to bash you cause I've seen so much of these kinds of snarky comments lately that I've come to expect them.
But if you could be so kind, could you please tell me where you're getting your opinion from?
I mean, I assume you're not actually a worker in Florida or Alabama who has a vested interest in extending the killed-14-but-plenty-left Shuttle or pretending that Canstellation was ever going anywhere, so obviously some pundit somewhere has filled your head with this baffling opinion so who was it?
Was it Dr. Harrison Schmitt speaking at the Institute of Human and Machine Cognition in Florida (what the hell kind of a platform is that anyway?
) with his absurd comments about China and Russia - the comments about Russia being more absurd than the ones about China but only slightly - which basically amounted to "reds up the beds and now in space!!
"  Or was it Andy Pasztor at the Wall Street Journal who has done nothing but demonstrate just how long journalism has sunk to, misrepresenting first Burt Rutan's comments - causing Burt to publish his communications in full and with not even an apology from the WSJ - and then misrepresenting an internal NASA memo and blatantly fabricating quotes saying Bolden was seeing a "Plan B" prompting Bolden to release a denial.. and again, without even an apology from the WSJ.
Ironically, one place you couldn't be getting this nonsense from is Fox News...</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379580</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31381666</id>
	<title>Re:If it's tumbing anyway...</title>
	<author>Nyeerrmm</author>
	<datestamp>1267900620000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>We actually had this idea (I'm a grad student in aerospace engineering) a few years ago, and one guy managed to throw together a small 'roll-bot' that bhas a motor attached to the axis of a spherical shell, and a weight on a servo that hanges below that axis.  The motor controls the speed, and you can turn it by moving the weight so it causes the wheel to tilt.  Works pretty well, and would be good for a planetary probe because its completely sealed, so if you have a way to clean the surface you wouldn't have to worry about internal wear.</htmltext>
<tokenext>We actually had this idea ( I 'm a grad student in aerospace engineering ) a few years ago , and one guy managed to throw together a small 'roll-bot ' that bhas a motor attached to the axis of a spherical shell , and a weight on a servo that hanges below that axis .
The motor controls the speed , and you can turn it by moving the weight so it causes the wheel to tilt .
Works pretty well , and would be good for a planetary probe because its completely sealed , so if you have a way to clean the surface you would n't have to worry about internal wear .</tokentext>
<sentencetext>We actually had this idea (I'm a grad student in aerospace engineering) a few years ago, and one guy managed to throw together a small 'roll-bot' that bhas a motor attached to the axis of a spherical shell, and a weight on a servo that hanges below that axis.
The motor controls the speed, and you can turn it by moving the weight so it causes the wheel to tilt.
Works pretty well, and would be good for a planetary probe because its completely sealed, so if you have a way to clean the surface you wouldn't have to worry about internal wear.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379744</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31381510</id>
	<title>Holes, ditches, ridges?</title>
	<author>Anonymous</author>
	<datestamp>1267898940000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>What happens when this thing roles down a valley or falls in a deep crater or some ditch. Wind isn't going to be able to blow it anywhere after that. It's much easier for a tumbleweed to go on a flat surface or down hill, but once it goes to an area where the relative sea level is low it's done exploring.</p></htmltext>
<tokenext>What happens when this thing roles down a valley or falls in a deep crater or some ditch .
Wind is n't going to be able to blow it anywhere after that .
It 's much easier for a tumbleweed to go on a flat surface or down hill , but once it goes to an area where the relative sea level is low it 's done exploring .</tokentext>
<sentencetext>What happens when this thing roles down a valley or falls in a deep crater or some ditch.
Wind isn't going to be able to blow it anywhere after that.
It's much easier for a tumbleweed to go on a flat surface or down hill, but once it goes to an area where the relative sea level is low it's done exploring.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31380598</id>
	<title>Re:Fitting, so it will match the economy</title>
	<author>amightywind</author>
	<datestamp>1267889820000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>Of course Obama has increased NASA's funding, so that they can turn their attention to more important matters, like global warming.</p></htmltext>
<tokenext>Of course Obama has increased NASA 's funding , so that they can turn their attention to more important matters , like global warming .</tokentext>
<sentencetext>Of course Obama has increased NASA's funding, so that they can turn their attention to more important matters, like global warming.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379760</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379946</id>
	<title>More Investment and Ideas Needed</title>
	<author>robbyyy</author>
	<datestamp>1267879140000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>This sounds like an intersting idea in principal.  I do think that we need to kickstart the whole human exploration effort.  Scientific advancement in this area seems to be slipping.</htmltext>
<tokenext>This sounds like an intersting idea in principal .
I do think that we need to kickstart the whole human exploration effort .
Scientific advancement in this area seems to be slipping .</tokentext>
<sentencetext>This sounds like an intersting idea in principal.
I do think that we need to kickstart the whole human exploration effort.
Scientific advancement in this area seems to be slipping.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31380688</id>
	<title>Re:How appropriate...</title>
	<author>andydread</author>
	<datestamp>1267890600000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>+1</htmltext>
<tokenext>+ 1</tokentext>
<sentencetext>+1</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379698</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31380588</id>
	<title>Location Data?</title>
	<author>Anonymous</author>
	<datestamp>1267889700000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>Location data could be difficult.  There's no GPS on Mars.

The cheapest solution would be to give the Tumbleweeds an omnidirectional beacon strobe.  Then it could be spotted from orbit when it's on the night side.  Accurate location info would be easiest to get just after dusk and before dawn because landmarks on the day side would be visible to the satellite.</htmltext>
<tokenext>Location data could be difficult .
There 's no GPS on Mars .
The cheapest solution would be to give the Tumbleweeds an omnidirectional beacon strobe .
Then it could be spotted from orbit when it 's on the night side .
Accurate location info would be easiest to get just after dusk and before dawn because landmarks on the day side would be visible to the satellite .</tokentext>
<sentencetext>Location data could be difficult.
There's no GPS on Mars.
The cheapest solution would be to give the Tumbleweeds an omnidirectional beacon strobe.
Then it could be spotted from orbit when it's on the night side.
Accurate location info would be easiest to get just after dusk and before dawn because landmarks on the day side would be visible to the satellite.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31381384</id>
	<title>I'm sure they didn't think of this.</title>
	<author>carpefishus</author>
	<datestamp>1267897860000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>The damn thing is just going to get caught in a barbed wire fence.</htmltext>
<tokenext>The damn thing is just going to get caught in a barbed wire fence .</tokentext>
<sentencetext>The damn thing is just going to get caught in a barbed wire fence.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31380134</id>
	<title>Wouldn't they all end up in pits?</title>
	<author>Anonymous</author>
	<datestamp>1267883940000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>Kinda like ET on the 2600?</p></htmltext>
<tokenext>Kinda like ET on the 2600 ?</tokentext>
<sentencetext>Kinda like ET on the 2600?</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31381776</id>
	<title>Re:How appropriate...</title>
	<author>noidentity</author>
	<datestamp>1267901460000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><blockquote><div><p>"Tumbleweed" is a perfect description of what will be left of the space program after the current administration is done with it!</p></div>
</blockquote><p>Thus setting the perfect stage for an old-west style shootout... on Mars!</p></div>
	</htmltext>
<tokenext>" Tumbleweed " is a perfect description of what will be left of the space program after the current administration is done with it !
Thus setting the perfect stage for an old-west style shootout... on Mars !</tokentext>
<sentencetext>"Tumbleweed" is a perfect description of what will be left of the space program after the current administration is done with it!
Thus setting the perfect stage for an old-west style shootout... on Mars!
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379580</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379600</id>
	<title>Is the atmosphere dense enough?</title>
	<author>Anonymous</author>
	<datestamp>1267870380000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>5</modscore>
	<htmltext><p>I'm sure they've thought about this, but is the atmosphere really dense enough to push something carrying any sort of payload around?  I think atmospheric pressure is less than 1\% of earth's whereas gravity is still 1/2 that of earth's.  Will it have a "pump" for slow leaks?  Self sealing against punctures?</p><p>On the other hand, if it really is light enough and the "fabric" is tough and heat resistant, maybe it can deorbit WITHOUT using a heat shield.  Now that would really save a LOT of weight and might make the whole idea worthwhile.  I seem to remember there were once emergency escape plans for astronauts that essentially had them envelope themselves in a (very) large foam shield.  If you make it light and fluffy enough it might "float" down from space.  (Or glide down in the case of the paper(!) airplane that a japanese astronaut at the ISS flew back to earth).</p><p>Just curious.</p></htmltext>
<tokenext>I 'm sure they 've thought about this , but is the atmosphere really dense enough to push something carrying any sort of payload around ?
I think atmospheric pressure is less than 1 \ % of earth 's whereas gravity is still 1/2 that of earth 's .
Will it have a " pump " for slow leaks ?
Self sealing against punctures ? On the other hand , if it really is light enough and the " fabric " is tough and heat resistant , maybe it can deorbit WITHOUT using a heat shield .
Now that would really save a LOT of weight and might make the whole idea worthwhile .
I seem to remember there were once emergency escape plans for astronauts that essentially had them envelope themselves in a ( very ) large foam shield .
If you make it light and fluffy enough it might " float " down from space .
( Or glide down in the case of the paper ( !
) airplane that a japanese astronaut at the ISS flew back to earth ) .Just curious .</tokentext>
<sentencetext>I'm sure they've thought about this, but is the atmosphere really dense enough to push something carrying any sort of payload around?
I think atmospheric pressure is less than 1\% of earth's whereas gravity is still 1/2 that of earth's.
Will it have a "pump" for slow leaks?
Self sealing against punctures?On the other hand, if it really is light enough and the "fabric" is tough and heat resistant, maybe it can deorbit WITHOUT using a heat shield.
Now that would really save a LOT of weight and might make the whole idea worthwhile.
I seem to remember there were once emergency escape plans for astronauts that essentially had them envelope themselves in a (very) large foam shield.
If you make it light and fluffy enough it might "float" down from space.
(Or glide down in the case of the paper(!
) airplane that a japanese astronaut at the ISS flew back to earth).Just curious.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379646</id>
	<title>Frequently asked question at JPL:</title>
	<author>Anonymous</author>
	<datestamp>1267871280000</datestamp>
	<modclass>Funny</modclass>
	<modscore>2</modscore>
	<htmltext><p>"OK guys, where the F*** are we now?"</p><p>(due to the huge communication lag between Mars and Earth, rovers are controlled by giving a set of commands, and then checking the result the next day (or next Sol, to be exact))</p></htmltext>
<tokenext>" OK guys , where the F * * * are we now ?
" ( due to the huge communication lag between Mars and Earth , rovers are controlled by giving a set of commands , and then checking the result the next day ( or next Sol , to be exact ) )</tokentext>
<sentencetext>"OK guys, where the F*** are we now?
"(due to the huge communication lag between Mars and Earth, rovers are controlled by giving a set of commands, and then checking the result the next day (or next Sol, to be exact))</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379696</id>
	<title>Footprints?</title>
	<author>Anonymous</author>
	<datestamp>1267872420000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>Hey, not that this is some sort of faked moon mission conspiracy theory, but do I see FOOT PRINTS in the before and after photos of the dust build up?  Are these earth-born test photos presented as shots from Mars?</p></htmltext>
<tokenext>Hey , not that this is some sort of faked moon mission conspiracy theory , but do I see FOOT PRINTS in the before and after photos of the dust build up ?
Are these earth-born test photos presented as shots from Mars ?</tokentext>
<sentencetext>Hey, not that this is some sort of faked moon mission conspiracy theory, but do I see FOOT PRINTS in the before and after photos of the dust build up?
Are these earth-born test photos presented as shots from Mars?</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31380198</id>
	<title>We demand bouncing -</title>
	<author>Anonymous</author>
	<datestamp>1267885080000</datestamp>
	<modclass>Funny</modclass>
	<modscore>3</modscore>
	<htmltext>We demand bouncing, followed by rolling, followed by rolling of the third type.</htmltext>
<tokenext>We demand bouncing , followed by rolling , followed by rolling of the third type .</tokentext>
<sentencetext>We demand bouncing, followed by rolling, followed by rolling of the third type.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31397632</id>
	<title>Re: You know what 's better than a tumbleweed?</title>
	<author>jmkelly</author>
	<datestamp>1267986720000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p><div class="quote"><p>A guy walking around on the Martian surface.</p></div><p>Consider yourself nominated. Don't forget your lunch.</p></div>
	</htmltext>
<tokenext>A guy walking around on the Martian surface.Consider yourself nominated .
Do n't forget your lunch .</tokentext>
<sentencetext>A guy walking around on the Martian surface.Consider yourself nominated.
Don't forget your lunch.
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31380432</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31380578</id>
	<title>Re:Fitting, so it will match the economy</title>
	<author>jimbolauski</author>
	<datestamp>1267889640000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>1</modscore>
	<htmltext>So how long until the current administration will be accountable for their actions unemployment has only risen since Obama has been in office.</htmltext>
<tokenext>So how long until the current administration will be accountable for their actions unemployment has only risen since Obama has been in office .</tokentext>
<sentencetext>So how long until the current administration will be accountable for their actions unemployment has only risen since Obama has been in office.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379760</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31383122</id>
	<title>Venus dominates Mars</title>
	<author>Anonymous</author>
	<datestamp>1267867620000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>One lick of the balls and Mars rolls over like a pussycat.</p><p>One kick in the balls and Mars rolls over like a screaming, jibbering pussycat</p></htmltext>
<tokenext>One lick of the balls and Mars rolls over like a pussycat.One kick in the balls and Mars rolls over like a screaming , jibbering pussycat</tokentext>
<sentencetext>One lick of the balls and Mars rolls over like a pussycat.One kick in the balls and Mars rolls over like a screaming, jibbering pussycat</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31380066</id>
	<title>Heavens no!</title>
	<author>excelsior\_gr</author>
	<datestamp>1267882560000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>It could be mistaken for an alien!<br>
<a href="http://www.badmovies.org/movies/darkstar/darkstar4.jpg" title="badmovies.org" rel="nofollow">http://www.badmovies.org/movies/darkstar/darkstar4.jpg</a> [badmovies.org]</htmltext>
<tokenext>It could be mistaken for an alien !
http : //www.badmovies.org/movies/darkstar/darkstar4.jpg [ badmovies.org ]</tokentext>
<sentencetext>It could be mistaken for an alien!
http://www.badmovies.org/movies/darkstar/darkstar4.jpg [badmovies.org]</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31382134</id>
	<title>Re:Rover?</title>
	<author>Jeremi</author>
	<datestamp>1267904820000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p><i> What are these scientists really planning?</i></p><p>Behold the <a href="http://www.youtube.com/watch?v=rNVcSIZyBuE" title="youtube.com">nightmarish future</a> [youtube.com]</p></htmltext>
<tokenext>What are these scientists really planning ? Behold the nightmarish future [ youtube.com ]</tokentext>
<sentencetext> What are these scientists really planning?Behold the nightmarish future [youtube.com]</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31380482</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31383284</id>
	<title>Re:How appropriate...</title>
	<author>joggle</author>
	<datestamp>1267868700000</datestamp>
	<modclass>Insightful</modclass>
	<modscore>2</modscore>
	<htmltext><p>Actually, you have it backwards. The programs that were cut would have taken virtually all of NASA's budget, making other exploration programs like this nearly impossible to fund.</p></htmltext>
<tokenext>Actually , you have it backwards .
The programs that were cut would have taken virtually all of NASA 's budget , making other exploration programs like this nearly impossible to fund .</tokentext>
<sentencetext>Actually, you have it backwards.
The programs that were cut would have taken virtually all of NASA's budget, making other exploration programs like this nearly impossible to fund.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379580</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31421554</id>
	<title>Ditches</title>
	<author>bill\_mcgonigle</author>
	<datestamp>1268141820000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>My kids have some absurdly large inflatable balls in the yard.  Our yard has terrain.  They always wind up in the bottom of a ditch somewhere.</p></htmltext>
<tokenext>My kids have some absurdly large inflatable balls in the yard .
Our yard has terrain .
They always wind up in the bottom of a ditch somewhere .</tokentext>
<sentencetext>My kids have some absurdly large inflatable balls in the yard.
Our yard has terrain.
They always wind up in the bottom of a ditch somewhere.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31381474</id>
	<title>Re:Fitting, so it will match the economy</title>
	<author>WCguru42</author>
	<datestamp>1267898580000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>Echoing another respondent - jo42 - </p><p>The economic recession that we're in right now is a combination of people forgetting why regulations were put in place after the Great Depression and people (maybe with good intentions) trying to force legislation for everyone to own property.  There were no recessions of this current magnitude since the great depression.  This was due in large part to regulations that restricted business from being complete fucking idiots.  Beginning in 80s people started thinking, our economy's doing well, screw these regulations, they're outdated.  And in the 90s legislation was passed that basically forced banks to give out home loans to everyone.  This resulted in people getting home loans for property that far exceeded their means.  It's good intentions to want everyone to be able to afford a home, but if you work minimum wage you're not going to get that mansion on hollywood boulevard.</p><p>So yes, the economy is the fault of a small group of people, and those people weren't at Wall Street, they were in Congress.  Quite frankly, the office of the president doesn't have the power to create this great of a shitstorm.</p></htmltext>
<tokenext>Echoing another respondent - jo42 - The economic recession that we 're in right now is a combination of people forgetting why regulations were put in place after the Great Depression and people ( maybe with good intentions ) trying to force legislation for everyone to own property .
There were no recessions of this current magnitude since the great depression .
This was due in large part to regulations that restricted business from being complete fucking idiots .
Beginning in 80s people started thinking , our economy 's doing well , screw these regulations , they 're outdated .
And in the 90s legislation was passed that basically forced banks to give out home loans to everyone .
This resulted in people getting home loans for property that far exceeded their means .
It 's good intentions to want everyone to be able to afford a home , but if you work minimum wage you 're not going to get that mansion on hollywood boulevard.So yes , the economy is the fault of a small group of people , and those people were n't at Wall Street , they were in Congress .
Quite frankly , the office of the president does n't have the power to create this great of a shitstorm .</tokentext>
<sentencetext>Echoing another respondent - jo42 - The economic recession that we're in right now is a combination of people forgetting why regulations were put in place after the Great Depression and people (maybe with good intentions) trying to force legislation for everyone to own property.
There were no recessions of this current magnitude since the great depression.
This was due in large part to regulations that restricted business from being complete fucking idiots.
Beginning in 80s people started thinking, our economy's doing well, screw these regulations, they're outdated.
And in the 90s legislation was passed that basically forced banks to give out home loans to everyone.
This resulted in people getting home loans for property that far exceeded their means.
It's good intentions to want everyone to be able to afford a home, but if you work minimum wage you're not going to get that mansion on hollywood boulevard.So yes, the economy is the fault of a small group of people, and those people weren't at Wall Street, they were in Congress.
Quite frankly, the office of the president doesn't have the power to create this great of a shitstorm.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31380522</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31380220</id>
	<title>From Tumbleweed Mission Control</title>
	<author>Attila the Bun</author>
	<datestamp>1267885320000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>"That's an interesting rock, let's look a bit more closely... woah, no time for that, we're off again."<br>

"It sure is windy today.  I feel a little seasick."<br>

"Was that a pair of eyes we just went past?"<br>

<em>[sometime later after a change in the weather]</em> <br>

"The forecast is calm for the next month.  Has anybody got any great ideas for studying this patch of sand we're stuck on?"</htmltext>
<tokenext>" That 's an interesting rock , let 's look a bit more closely... woah , no time for that , we 're off again .
" " It sure is windy today .
I feel a little seasick .
" " Was that a pair of eyes we just went past ?
" [ sometime later after a change in the weather ] " The forecast is calm for the next month .
Has anybody got any great ideas for studying this patch of sand we 're stuck on ?
"</tokentext>
<sentencetext>"That's an interesting rock, let's look a bit more closely... woah, no time for that, we're off again.
"

"It sure is windy today.
I feel a little seasick.
"

"Was that a pair of eyes we just went past?
"

[sometime later after a change in the weather] 

"The forecast is calm for the next month.
Has anybody got any great ideas for studying this patch of sand we're stuck on?
"</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379942</id>
	<title>Re:How appropriate...</title>
	<author>jhoegl</author>
	<datestamp>1267879140000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>Because Fox news is never far from the truth, amirite?<br> <br>

<a href="http://www.youtube.com/results?search\_query=jon+stewart+fox+news&amp;search\_type=&amp;aq=f" title="youtube.com" rel="nofollow">http://www.youtube.com/results?search\_query=jon+stewart+fox+news&amp;search\_type=&amp;aq=f</a> [youtube.com]<br>
<a href="http://www.youtube.com/results?search\_query=fox+news+hypocracy&amp;search\_type=&amp;aq=1&amp;oq=fox+news+hypoc" title="youtube.com" rel="nofollow">http://www.youtube.com/results?search\_query=fox+news+hypocracy&amp;search\_type=&amp;aq=1&amp;oq=fox+news+hypoc</a> [youtube.com]<br>
<a href="http://www.youtube.com/results?search\_query=fox+news+lies&amp;search\_type=&amp;aq=f" title="youtube.com" rel="nofollow">http://www.youtube.com/results?search\_query=fox+news+lies&amp;search\_type=&amp;aq=f</a> [youtube.com]<br>
I could go on... but that should get you started.<br> <br>

Flame bait in deed.</htmltext>
<tokenext>Because Fox news is never far from the truth , amirite ?
http : //www.youtube.com/results ? search \ _query = jon + stewart + fox + news&amp;search \ _type = &amp;aq = f [ youtube.com ] http : //www.youtube.com/results ? search \ _query = fox + news + hypocracy&amp;search \ _type = &amp;aq = 1&amp;oq = fox + news + hypoc [ youtube.com ] http : //www.youtube.com/results ? search \ _query = fox + news + lies&amp;search \ _type = &amp;aq = f [ youtube.com ] I could go on... but that should get you started .
Flame bait in deed .</tokentext>
<sentencetext>Because Fox news is never far from the truth, amirite?
http://www.youtube.com/results?search\_query=jon+stewart+fox+news&amp;search\_type=&amp;aq=f [youtube.com]
http://www.youtube.com/results?search\_query=fox+news+hypocracy&amp;search\_type=&amp;aq=1&amp;oq=fox+news+hypoc [youtube.com]
http://www.youtube.com/results?search\_query=fox+news+lies&amp;search\_type=&amp;aq=f [youtube.com]
I could go on... but that should get you started.
Flame bait in deed.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379698</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31381656</id>
	<title>Re:Two problems</title>
	<author>Tablizer</author>
	<datestamp>1267900500000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><blockquote><div><p>I just went to death valley in February and saw the rows of tumbleweeds stuck on the fences and in crevices</p></div></blockquote><p>Compressed air jets may be able to get tumblerovers loose. Because the atmosphere is thin on Mars, such air would pack a punch.</p><p>
&nbsp; &nbsp;</p></div>
	</htmltext>
<tokenext>I just went to death valley in February and saw the rows of tumbleweeds stuck on the fences and in crevicesCompressed air jets may be able to get tumblerovers loose .
Because the atmosphere is thin on Mars , such air would pack a punch .
   </tokentext>
<sentencetext>I just went to death valley in February and saw the rows of tumbleweeds stuck on the fences and in crevicesCompressed air jets may be able to get tumblerovers loose.
Because the atmosphere is thin on Mars, such air would pack a punch.
   
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379610</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379760</id>
	<title>Fitting, so it will match the economy</title>
	<author>Anonymous</author>
	<datestamp>1267874040000</datestamp>
	<modclass>Insightful</modclass>
	<modscore>3</modscore>
	<htmltext><p>That is fitting, so the space program will match the economy the republicans left the current administration.</p></htmltext>
<tokenext>That is fitting , so the space program will match the economy the republicans left the current administration .</tokentext>
<sentencetext>That is fitting, so the space program will match the economy the republicans left the current administration.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379580</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31381268</id>
	<title>Billions and Billions ...</title>
	<author>517714</author>
	<datestamp>1267896780000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>That's how many it will take to dominate Mars.<br><br>The first billion will fill in the craters and other depressions.<br><br>The second billion will be able to roll freely on the resulting flat surface.</htmltext>
<tokenext>That 's how many it will take to dominate Mars.The first billion will fill in the craters and other depressions.The second billion will be able to roll freely on the resulting flat surface .</tokentext>
<sentencetext>That's how many it will take to dominate Mars.The first billion will fill in the craters and other depressions.The second billion will be able to roll freely on the resulting flat surface.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379782</id>
	<title>Mod Parent Up!</title>
	<author>QuantumG</author>
	<datestamp>1267874520000</datestamp>
	<modclass>Troll</modclass>
	<modscore>-1</modscore>
	<htmltext><p>When did republicans take over Slashdot?</p></htmltext>
<tokenext>When did republicans take over Slashdot ?</tokentext>
<sentencetext>When did republicans take over Slashdot?</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379698</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31380186</id>
	<title>Mod Parent Up!</title>
	<author>Anonymous</author>
	<datestamp>1267884900000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>Thank you for demonstrating the difference between a well informed opinion and an ignorant one, and the importance of the former in the arena of politics.</p></htmltext>
<tokenext>Thank you for demonstrating the difference between a well informed opinion and an ignorant one , and the importance of the former in the arena of politics .</tokentext>
<sentencetext>Thank you for demonstrating the difference between a well informed opinion and an ignorant one, and the importance of the former in the arena of politics.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379698</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31383434</id>
	<title>absolutely true!</title>
	<author>Tumbleweed</author>
	<datestamp>1267869840000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>I am definitely vying for some serious funding. CAN HAZ MRZ PLZ?</p></htmltext>
<tokenext>I am definitely vying for some serious funding .
CAN HAZ MRZ PLZ ?</tokentext>
<sentencetext>I am definitely vying for some serious funding.
CAN HAZ MRZ PLZ?</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379890</id>
	<title>OMG! It's the attack of the killer tomatoes!</title>
	<author>forebees</author>
	<datestamp>1267877220000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p><a href="http://www.imdb.com/title/tt0080391/" title="imdb.com" rel="nofollow">http://www.imdb.com/title/tt0080391/</a> [imdb.com]</p><p>I can see any intelligent Martian life running for the hills<nobr> <wbr></nobr>:)</p><p>I wonder if they scared the crap out of anyone in Greenland</p><p>LOL</p></htmltext>
<tokenext>http : //www.imdb.com/title/tt0080391/ [ imdb.com ] I can see any intelligent Martian life running for the hills : ) I wonder if they scared the crap out of anyone in GreenlandLOL</tokentext>
<sentencetext>http://www.imdb.com/title/tt0080391/ [imdb.com]I can see any intelligent Martian life running for the hills :)I wonder if they scared the crap out of anyone in GreenlandLOL</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31382458</id>
	<title>Bad for photos, good for weather</title>
	<author>physburn</author>
	<datestamp>1267906740000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>A tumbleweed rover, would stand still, at some odd angle for
weeks between storms, then get blown so fast, all the picture
would have motion blur, (unless they put a very fast camera in it).
But it would be great for weather sensing because it would
detect every gust of wind.
<p>
---
</p><p>
<a href="http://www.feeddistiller.com/blogs/SolarSystem/feed.html" title="feeddistiller.com">Solar System</a> [feeddistiller.com] Feed @ <a href="http://www.feeddistiller.com/" title="feeddistiller.com">Feed Distiller</a> [feeddistiller.com]</p></htmltext>
<tokenext>A tumbleweed rover , would stand still , at some odd angle for weeks between storms , then get blown so fast , all the picture would have motion blur , ( unless they put a very fast camera in it ) .
But it would be great for weather sensing because it would detect every gust of wind .
--- Solar System [ feeddistiller.com ] Feed @ Feed Distiller [ feeddistiller.com ]</tokentext>
<sentencetext>A tumbleweed rover, would stand still, at some odd angle for
weeks between storms, then get blown so fast, all the picture
would have motion blur, (unless they put a very fast camera in it).
But it would be great for weather sensing because it would
detect every gust of wind.
---

Solar System [feeddistiller.com] Feed @ Feed Distiller [feeddistiller.com]</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379610</id>
	<title>Two problems</title>
	<author>Aargau</author>
	<datestamp>1267870500000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>One, inability to use feedback to direct it towards interesting phenomena. Even if you can stop it, it doesn't mean you can get close enough to anomalous features on the surface.

Two, lack of ability to escape local minima. I don't know how much of a problem this would be on mars, but I just went to death valley in February and saw the rows of tumbleweeds stuck on the fences and in crevices (useful if you plan to sprout and reproduce).</htmltext>
<tokenext>One , inability to use feedback to direct it towards interesting phenomena .
Even if you can stop it , it does n't mean you can get close enough to anomalous features on the surface .
Two , lack of ability to escape local minima .
I do n't know how much of a problem this would be on mars , but I just went to death valley in February and saw the rows of tumbleweeds stuck on the fences and in crevices ( useful if you plan to sprout and reproduce ) .</tokentext>
<sentencetext>One, inability to use feedback to direct it towards interesting phenomena.
Even if you can stop it, it doesn't mean you can get close enough to anomalous features on the surface.
Two, lack of ability to escape local minima.
I don't know how much of a problem this would be on mars, but I just went to death valley in February and saw the rows of tumbleweeds stuck on the fences and in crevices (useful if you plan to sprout and reproduce).</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31380784</id>
	<title>Ballons</title>
	<author>WindBourne</author>
	<datestamp>1267891380000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>2</modscore>
	<htmltext>I would prefer a couple of balloons to float around with small amounts of equipment: weather info; Camera below: magnetic sensor: radiation detector on top. That would give a lot of information on places to look at. In addition, the camera would be able to see much closer than could the sats, though it would not be controllable in terms of where to fly. But at this time, it is useful to get a closer look at the planet via serin dipity.</htmltext>
<tokenext>I would prefer a couple of balloons to float around with small amounts of equipment : weather info ; Camera below : magnetic sensor : radiation detector on top .
That would give a lot of information on places to look at .
In addition , the camera would be able to see much closer than could the sats , though it would not be controllable in terms of where to fly .
But at this time , it is useful to get a closer look at the planet via serin dipity .</tokentext>
<sentencetext>I would prefer a couple of balloons to float around with small amounts of equipment: weather info; Camera below: magnetic sensor: radiation detector on top.
That would give a lot of information on places to look at.
In addition, the camera would be able to see much closer than could the sats, though it would not be controllable in terms of where to fly.
But at this time, it is useful to get a closer look at the planet via serin dipity.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379580</id>
	<title>How appropriate...</title>
	<author>bistromath007</author>
	<datestamp>1267869960000</datestamp>
	<modclass>Insightful</modclass>
	<modscore>2</modscore>
	<htmltext>"Tumbleweed" is a perfect description of what will be left of the space program after the current administration is done with it!</htmltext>
<tokenext>" Tumbleweed " is a perfect description of what will be left of the space program after the current administration is done with it !</tokentext>
<sentencetext>"Tumbleweed" is a perfect description of what will be left of the space program after the current administration is done with it!</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31380432</id>
	<title>You know what 's better than a tumbleweed?</title>
	<author>GodfatherofSoul</author>
	<datestamp>1267887960000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>A guy walking around on the Martian surface.</htmltext>
<tokenext>A guy walking around on the Martian surface .</tokentext>
<sentencetext>A guy walking around on the Martian surface.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379862</id>
	<title>Re:Is the atmosphere dense enough?</title>
	<author>Anonymous</author>
	<datestamp>1267876080000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>4</modscore>
	<htmltext><p><div class="quote"><p>I'm sure they've thought about this, but is the atmosphere really dense enough to push something carrying any sort of payload around?  I think atmospheric pressure is less than 1\% of earth's whereas gravity is still 1/2 that of earth's.</p></div><p>Gravity is 38\% of gravity on Earth. Atmospheric pressure is at most 1\% of the pressure on Earth. But the funny thing is that it would be technically possible to land a winged aircraft on Mars. Wing loading would be low and landing speed would be high. Part of the reason is that carbon dioxide is quite a bit denser than nitrogen. So while the pressure is low, the density is not so low.</p></div>
	</htmltext>
<tokenext>I 'm sure they 've thought about this , but is the atmosphere really dense enough to push something carrying any sort of payload around ?
I think atmospheric pressure is less than 1 \ % of earth 's whereas gravity is still 1/2 that of earth 's.Gravity is 38 \ % of gravity on Earth .
Atmospheric pressure is at most 1 \ % of the pressure on Earth .
But the funny thing is that it would be technically possible to land a winged aircraft on Mars .
Wing loading would be low and landing speed would be high .
Part of the reason is that carbon dioxide is quite a bit denser than nitrogen .
So while the pressure is low , the density is not so low .</tokentext>
<sentencetext>I'm sure they've thought about this, but is the atmosphere really dense enough to push something carrying any sort of payload around?
I think atmospheric pressure is less than 1\% of earth's whereas gravity is still 1/2 that of earth's.Gravity is 38\% of gravity on Earth.
Atmospheric pressure is at most 1\% of the pressure on Earth.
But the funny thing is that it would be technically possible to land a winged aircraft on Mars.
Wing loading would be low and landing speed would be high.
Part of the reason is that carbon dioxide is quite a bit denser than nitrogen.
So while the pressure is low, the density is not so low.
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379600</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31380386</id>
	<title>Re:How appropriate...</title>
	<author>Bearhouse</author>
	<datestamp>1267887540000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>2</modscore>
	<htmltext><p>Well, why not?  The US essentially ended the first space race by making multiple landings on the moon.  Still an extraordinary achievement, and frankly an amazing one given the technology available at the time.  1969, remember.<br>Gentlemen, I salute you.  (And no, I'm not American...)<br>What do you do to top that?<br>It's like gambling; sometimes it's better to get up from the table and keep your winnings.<br>The shuttle program was - frankly - a disaster, financially but especially and unfortunately in human lives.<br>Let the Chinese and others waste a fortune trying to do what NASA did, and save the cash for Medicare.</p></htmltext>
<tokenext>Well , why not ?
The US essentially ended the first space race by making multiple landings on the moon .
Still an extraordinary achievement , and frankly an amazing one given the technology available at the time .
1969 , remember.Gentlemen , I salute you .
( And no , I 'm not American... ) What do you do to top that ? It 's like gambling ; sometimes it 's better to get up from the table and keep your winnings.The shuttle program was - frankly - a disaster , financially but especially and unfortunately in human lives.Let the Chinese and others waste a fortune trying to do what NASA did , and save the cash for Medicare .</tokentext>
<sentencetext>Well, why not?
The US essentially ended the first space race by making multiple landings on the moon.
Still an extraordinary achievement, and frankly an amazing one given the technology available at the time.
1969, remember.Gentlemen, I salute you.
(And no, I'm not American...)What do you do to top that?It's like gambling; sometimes it's better to get up from the table and keep your winnings.The shuttle program was - frankly - a disaster, financially but especially and unfortunately in human lives.Let the Chinese and others waste a fortune trying to do what NASA did, and save the cash for Medicare.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379580</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31380010</id>
	<title>Re:Frequently asked question at JPL:</title>
	<author>jamesh</author>
	<datestamp>1267880880000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>The other frequently asked question will be "what the hell was that?". Like the face on mars, there will be a heap of random rock outcrops and shadows that look really interesting from a certain angle, and unfortunately you can't easily go round for a second look. For that reason alone I think we should do it - a new conspiracy theory could be born every second!</p></htmltext>
<tokenext>The other frequently asked question will be " what the hell was that ? " .
Like the face on mars , there will be a heap of random rock outcrops and shadows that look really interesting from a certain angle , and unfortunately you ca n't easily go round for a second look .
For that reason alone I think we should do it - a new conspiracy theory could be born every second !</tokentext>
<sentencetext>The other frequently asked question will be "what the hell was that?".
Like the face on mars, there will be a heap of random rock outcrops and shadows that look really interesting from a certain angle, and unfortunately you can't easily go round for a second look.
For that reason alone I think we should do it - a new conspiracy theory could be born every second!</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379646</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31385026</id>
	<title>Yea right...</title>
	<author>nataflux</author>
	<datestamp>1267882920000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>And then the tumbleweed gets stuck in a hole and there goes the millions of dollars spent to send it there.</htmltext>
<tokenext>And then the tumbleweed gets stuck in a hole and there goes the millions of dollars spent to send it there .</tokentext>
<sentencetext>And then the tumbleweed gets stuck in a hole and there goes the millions of dollars spent to send it there.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_03_06_0232214.31379744</id>
	<title>If it's tumbing anyway...</title>
	<author>Hurricane78</author>
	<datestamp>1267873500000</datestamp>
	<modclass>Insightful</modclass>
	<modscore>2</modscore>
	<htmltext><p>...then why not add some solar cells and a motor, so it can actually move to where it wants.</p><p>It will clean the cells, by tumbling and turning half of them upside-down.</p><p>But I don&rsquo;t know if the wind on Mars is really strong enough for all of this...</p></htmltext>
<tokenext>...then why not add some solar cells and a motor , so it can actually move to where it wants.It will clean the cells , by tumbling and turning half of them upside-down.But I don    t know if the wind on Mars is really strong enough for all of this.. .</tokentext>
<sentencetext>...then why not add some solar cells and a motor, so it can actually move to where it wants.It will clean the cells, by tumbling and turning half of them upside-down.But I don’t know if the wind on Mars is really strong enough for all of this...</sentencetext>
</comment>
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