<article>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#article09_10_23_1743206</id>
	<title>NASA Power Beaming Challenge is On For November 2nd</title>
	<author>ScuttleMonkey</author>
	<datestamp>1256287380000</datestamp>
	<htmltext>carstene writes <i>"The NASA Centennial Challenge Powered Beaming competition, to develop technology for uses such as a space elevator, or to power a rover in a shadowed crater on the moon, was delayed indefinitely due to trouble setting up the <a href="http://www.spaceelevatorgames.org/snagged-again/">kilometer-high race track</a>.  It has now had the kinks worked out and is <a href="http://www.spaceelevatorgames.org/its-a-date/">rescheduled</a> for the week of November 2nd.   The competition involves using a high-power laser to beam power to a robot that climbs a kilometer-high cable attached to a helicopter.  The competition was <a href="http://hardware.slashdot.org/story/09/07/23/2046203/2-Million-NASA-Power-Beaming-Challenge-Heating-Up?art\_pos=1">previously covered</a> on Slashdot."</i></htmltext>
<tokenext>carstene writes " The NASA Centennial Challenge Powered Beaming competition , to develop technology for uses such as a space elevator , or to power a rover in a shadowed crater on the moon , was delayed indefinitely due to trouble setting up the kilometer-high race track .
It has now had the kinks worked out and is rescheduled for the week of November 2nd .
The competition involves using a high-power laser to beam power to a robot that climbs a kilometer-high cable attached to a helicopter .
The competition was previously covered on Slashdot .
"</tokentext>
<sentencetext>carstene writes "The NASA Centennial Challenge Powered Beaming competition, to develop technology for uses such as a space elevator, or to power a rover in a shadowed crater on the moon, was delayed indefinitely due to trouble setting up the kilometer-high race track.
It has now had the kinks worked out and is rescheduled for the week of November 2nd.
The competition involves using a high-power laser to beam power to a robot that climbs a kilometer-high cable attached to a helicopter.
The competition was previously covered on Slashdot.
"</sentencetext>
</article>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851629</id>
	<title>Why use a beam?</title>
	<author>Rough3dg3</author>
	<datestamp>1256292180000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>Surely for the purpose of a space elevator orbiting the Earth it would be more suitable to power it using solar panels that are also in orbit and just hook it up via that.</htmltext>
<tokenext>Surely for the purpose of a space elevator orbiting the Earth it would be more suitable to power it using solar panels that are also in orbit and just hook it up via that .</tokentext>
<sentencetext>Surely for the purpose of a space elevator orbiting the Earth it would be more suitable to power it using solar panels that are also in orbit and just hook it up via that.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29852639</id>
	<title>Re:Why a helicopter?</title>
	<author>jnaujok</author>
	<datestamp>1256298600000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>I dunno, reflective mylar? If only we could build a balloon that could reach the stunning altitude of 1 kilometer (that's about 3000 feet) and be large enough to hold up that cable (guessing around 1000 to 2000 pounds) and keep itself still...<br>
<br>
Why, what a <a href="http://en.wikipedia.org/wiki/Airship" title="wikipedia.org">miraculous craft</a> [wikipedia.org] that would be!</htmltext>
<tokenext>I dunno , reflective mylar ?
If only we could build a balloon that could reach the stunning altitude of 1 kilometer ( that 's about 3000 feet ) and be large enough to hold up that cable ( guessing around 1000 to 2000 pounds ) and keep itself still.. . Why , what a miraculous craft [ wikipedia.org ] that would be !</tokentext>
<sentencetext>I dunno, reflective mylar?
If only we could build a balloon that could reach the stunning altitude of 1 kilometer (that's about 3000 feet) and be large enough to hold up that cable (guessing around 1000 to 2000 pounds) and keep itself still...

Why, what a miraculous craft [wikipedia.org] that would be!</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851997</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851565</id>
	<title>It's watching</title>
	<author>Anonymous</author>
	<datestamp>1256291880000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>Our shadowed creator is always present with its noodly appendages at the ready.</htmltext>
<tokenext>Our shadowed creator is always present with its noodly appendages at the ready .</tokentext>
<sentencetext>Our shadowed creator is always present with its noodly appendages at the ready.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29854023</id>
	<title>Re:Why not just use wires?</title>
	<author>ImitationEnergy</author>
	<datestamp>1256315640000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext>You have raised an interesting question. Would using a hollow wire allow the cold of Outer Space to plummet down the inside of the cable like a Mini Day After Tomorrow? If true perhaps the cold would enable smaller wires -like you suggested- to carry more current, a partial superconductor. But you'd have a partial vacuum inside the cable, requiring it to be very strong (heavier). Now if those small wires were to be made of a metal that goes superhard in the cold, or had a liquid center, you could actually have a machine feeding soft cable into the larger wire that would be turning harder the farther up it went, with the outer cable being a guide keeping it from falling over.  So hmm, the ISS would need to drop a real big Slinky. Is it cheating the contest to have the thing lowered from Space? I think the cable would need helium in the walls, on the outer side so the cold didn't make it collapse. Whew, you're stretching my imagination. But if they put wings on the cable that would use the high wind speed....  Hmm. Wings. You could make an Archimedes screw with wider wings spinning at a high enough speed to raise its own self pretty high, and then fire a rocket up the center that would finish the trip into Space pulling a wire. You have to remember that as the rocket climbs it would be riding upward on the pressure of its own exhaust. hehehehe</htmltext>
<tokenext>You have raised an interesting question .
Would using a hollow wire allow the cold of Outer Space to plummet down the inside of the cable like a Mini Day After Tomorrow ?
If true perhaps the cold would enable smaller wires -like you suggested- to carry more current , a partial superconductor .
But you 'd have a partial vacuum inside the cable , requiring it to be very strong ( heavier ) .
Now if those small wires were to be made of a metal that goes superhard in the cold , or had a liquid center , you could actually have a machine feeding soft cable into the larger wire that would be turning harder the farther up it went , with the outer cable being a guide keeping it from falling over .
So hmm , the ISS would need to drop a real big Slinky .
Is it cheating the contest to have the thing lowered from Space ?
I think the cable would need helium in the walls , on the outer side so the cold did n't make it collapse .
Whew , you 're stretching my imagination .
But if they put wings on the cable that would use the high wind speed.... Hmm. Wings .
You could make an Archimedes screw with wider wings spinning at a high enough speed to raise its own self pretty high , and then fire a rocket up the center that would finish the trip into Space pulling a wire .
You have to remember that as the rocket climbs it would be riding upward on the pressure of its own exhaust .
hehehehe</tokentext>
<sentencetext>You have raised an interesting question.
Would using a hollow wire allow the cold of Outer Space to plummet down the inside of the cable like a Mini Day After Tomorrow?
If true perhaps the cold would enable smaller wires -like you suggested- to carry more current, a partial superconductor.
But you'd have a partial vacuum inside the cable, requiring it to be very strong (heavier).
Now if those small wires were to be made of a metal that goes superhard in the cold, or had a liquid center, you could actually have a machine feeding soft cable into the larger wire that would be turning harder the farther up it went, with the outer cable being a guide keeping it from falling over.
So hmm, the ISS would need to drop a real big Slinky.
Is it cheating the contest to have the thing lowered from Space?
I think the cable would need helium in the walls, on the outer side so the cold didn't make it collapse.
Whew, you're stretching my imagination.
But if they put wings on the cable that would use the high wind speed....  Hmm. Wings.
You could make an Archimedes screw with wider wings spinning at a high enough speed to raise its own self pretty high, and then fire a rocket up the center that would finish the trip into Space pulling a wire.
You have to remember that as the rocket climbs it would be riding upward on the pressure of its own exhaust.
hehehehe</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851329</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851533</id>
	<title>Re:Why not just use wires?</title>
	<author>Anonymous</author>
	<datestamp>1256291760000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>Carbon nanotubes are conductive so the same lines that could be used to hold the elevator up can be used to transfer electricity, the problem is that the elevator would need the lines exposed to use them for power which would make it highly vulnerable to lighting.</htmltext>
<tokenext>Carbon nanotubes are conductive so the same lines that could be used to hold the elevator up can be used to transfer electricity , the problem is that the elevator would need the lines exposed to use them for power which would make it highly vulnerable to lighting .</tokentext>
<sentencetext>Carbon nanotubes are conductive so the same lines that could be used to hold the elevator up can be used to transfer electricity, the problem is that the elevator would need the lines exposed to use them for power which would make it highly vulnerable to lighting.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851329</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29853851</id>
	<title>Re:Why a helicopter?</title>
	<author>palegray.net</author>
	<datestamp>1256312460000</datestamp>
	<modclass>Insightful</modclass>
	<modscore>2</modscore>
	<htmltext><p><div class="quote"><p>And what happens if you miss and hit the balloon?</p></div><p>I'm still trying to work out how you can miss and hit it at the same time. Is this like some story I once heard about a cat?</p></div>
	</htmltext>
<tokenext>And what happens if you miss and hit the balloon ? I 'm still trying to work out how you can miss and hit it at the same time .
Is this like some story I once heard about a cat ?</tokentext>
<sentencetext>And what happens if you miss and hit the balloon?I'm still trying to work out how you can miss and hit it at the same time.
Is this like some story I once heard about a cat?
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851997</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851905</id>
	<title>Re:Why not just use wires?</title>
	<author>mcrbids</author>
	<datestamp>1256293620000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>2</modscore>
	<htmltext><p>Carbon nanotubes in the "armchair configuration" AKA 5,5 configuration, are excellent conductors of electricity along with having fantastic tensile strength properties.</p><p>To see this at work:</p><p>1) Get a metal, NON-magnetic tube (eg aluminum)</p><p>2) Get a magnet.</p><p>3) drop the magnet down the tube. The magnet will go VERY SLOWLY down the tube because of the magnetic field it generates. It never touches the tube.  That's because of the electricty inducted by the magnet creates its own magnetic field. Since there's nowhere for the electricity to go, the magnet drops very slowly.</p><p>If we make the space elevator a loop, where there are two points touching the earth (perhaps a few hundred miles apart) then we could use the flow of electricity and a magnetic field to provide both power and propulsion, and "get it back" when an elevator goes back down to Earth, without ever touching the nano cable. And we can control the rate of ascent/descent just by adjusting how much resistance we put on the loop circuit.</p></htmltext>
<tokenext>Carbon nanotubes in the " armchair configuration " AKA 5,5 configuration , are excellent conductors of electricity along with having fantastic tensile strength properties.To see this at work : 1 ) Get a metal , NON-magnetic tube ( eg aluminum ) 2 ) Get a magnet.3 ) drop the magnet down the tube .
The magnet will go VERY SLOWLY down the tube because of the magnetic field it generates .
It never touches the tube .
That 's because of the electricty inducted by the magnet creates its own magnetic field .
Since there 's nowhere for the electricity to go , the magnet drops very slowly.If we make the space elevator a loop , where there are two points touching the earth ( perhaps a few hundred miles apart ) then we could use the flow of electricity and a magnetic field to provide both power and propulsion , and " get it back " when an elevator goes back down to Earth , without ever touching the nano cable .
And we can control the rate of ascent/descent just by adjusting how much resistance we put on the loop circuit .</tokentext>
<sentencetext>Carbon nanotubes in the "armchair configuration" AKA 5,5 configuration, are excellent conductors of electricity along with having fantastic tensile strength properties.To see this at work:1) Get a metal, NON-magnetic tube (eg aluminum)2) Get a magnet.3) drop the magnet down the tube.
The magnet will go VERY SLOWLY down the tube because of the magnetic field it generates.
It never touches the tube.
That's because of the electricty inducted by the magnet creates its own magnetic field.
Since there's nowhere for the electricity to go, the magnet drops very slowly.If we make the space elevator a loop, where there are two points touching the earth (perhaps a few hundred miles apart) then we could use the flow of electricity and a magnetic field to provide both power and propulsion, and "get it back" when an elevator goes back down to Earth, without ever touching the nano cable.
And we can control the rate of ascent/descent just by adjusting how much resistance we put on the loop circuit.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851481</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29852291</id>
	<title>Re:Why not just use wires?</title>
	<author>Anonymous</author>
	<datestamp>1256296140000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext>The conductor would not be supporting it's own weight.  It would simply be attached to the elevator ribbon along the way.</htmltext>
<tokenext>The conductor would not be supporting it 's own weight .
It would simply be attached to the elevator ribbon along the way .</tokentext>
<sentencetext>The conductor would not be supporting it's own weight.
It would simply be attached to the elevator ribbon along the way.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851481</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29852553</id>
	<title>Re:Why not just use wires?</title>
	<author>jfengel</author>
	<datestamp>1256298120000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>Or, as I read here on Slashdot once:</p><p>First, build a bridge that goes 40,000 millimeters across a ditch on a college campus out of this material.  Then we can start to discuss how we're going to build 40,000 kilometers of it straight up.</p></htmltext>
<tokenext>Or , as I read here on Slashdot once : First , build a bridge that goes 40,000 millimeters across a ditch on a college campus out of this material .
Then we can start to discuss how we 're going to build 40,000 kilometers of it straight up .</tokentext>
<sentencetext>Or, as I read here on Slashdot once:First, build a bridge that goes 40,000 millimeters across a ditch on a college campus out of this material.
Then we can start to discuss how we're going to build 40,000 kilometers of it straight up.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851859</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29855029</id>
	<title>Re:Why not just use wires?</title>
	<author>Anonymous</author>
	<datestamp>1256379240000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>A mass driver is by far the more reasonable method of cheapening space travel not only with a space elevator do you have to worry about what mentioned below you have to worry about what happens when you fail to get the line up 26,000 miles of cable will literally wrap around the earth and overlap now even of the thinnest material possible your talking probably a mile or more wide and how can that mass be anchored to the earth cant just pour a foundation to keep 300 tons of rock on a string from pulling loose. Plus the counterweight how will it be placed into orbit around the earth in geosynchronous orbit...</p><p>A type of mass driver rail launch system is far more feasible to shoot payloads into orbit.</p></htmltext>
<tokenext>A mass driver is by far the more reasonable method of cheapening space travel not only with a space elevator do you have to worry about what mentioned below you have to worry about what happens when you fail to get the line up 26,000 miles of cable will literally wrap around the earth and overlap now even of the thinnest material possible your talking probably a mile or more wide and how can that mass be anchored to the earth cant just pour a foundation to keep 300 tons of rock on a string from pulling loose .
Plus the counterweight how will it be placed into orbit around the earth in geosynchronous orbit...A type of mass driver rail launch system is far more feasible to shoot payloads into orbit .</tokentext>
<sentencetext>A mass driver is by far the more reasonable method of cheapening space travel not only with a space elevator do you have to worry about what mentioned below you have to worry about what happens when you fail to get the line up 26,000 miles of cable will literally wrap around the earth and overlap now even of the thinnest material possible your talking probably a mile or more wide and how can that mass be anchored to the earth cant just pour a foundation to keep 300 tons of rock on a string from pulling loose.
Plus the counterweight how will it be placed into orbit around the earth in geosynchronous orbit...A type of mass driver rail launch system is far more feasible to shoot payloads into orbit.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851329</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851761</id>
	<title>perl vs. /.</title>
	<author>Anonymous</author>
	<datestamp>1256292900000</datestamp>
	<modclass>Offtopic</modclass>
	<modscore>-1</modscore>
	<htmltext>Back in the early 90's, when a new release of perl would come out,everybody worked their ass off to figure out real bugs and be the first to report it. Now, it seems like the wording nazi's come here and work their ass off to look for spelling and grammatical errors, to show how superior they are.  Times have changed.</htmltext>
<tokenext>Back in the early 90 's , when a new release of perl would come out,everybody worked their ass off to figure out real bugs and be the first to report it .
Now , it seems like the wording nazi 's come here and work their ass off to look for spelling and grammatical errors , to show how superior they are .
Times have changed .</tokentext>
<sentencetext>Back in the early 90's, when a new release of perl would come out,everybody worked their ass off to figure out real bugs and be the first to report it.
Now, it seems like the wording nazi's come here and work their ass off to look for spelling and grammatical errors, to show how superior they are.
Times have changed.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851519</id>
	<title>Why a helicopter?</title>
	<author>AJWM</author>
	<datestamp>1256291700000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>2</modscore>
	<htmltext><p>Wouldn't it make a lot more sense and be a lot easier to hold the cable up with a balloon?  (Or rather, hold the balloon down with the cable.)</p></htmltext>
<tokenext>Would n't it make a lot more sense and be a lot easier to hold the cable up with a balloon ?
( Or rather , hold the balloon down with the cable .
)</tokentext>
<sentencetext>Wouldn't it make a lot more sense and be a lot easier to hold the cable up with a balloon?
(Or rather, hold the balloon down with the cable.
)</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851859</id>
	<title>Re:Why not just use wires?</title>
	<author>Rei</author>
	<datestamp>1256293380000</datestamp>
	<modclass>Informativ</modclass>
	<modscore>5</modscore>
	<htmltext><p>Yeah, even if you use ridiculous voltages, it's just not going to happen.</p><p>Plus, these competitions always seem like putting the cart before the horse.  The elephant in the room is that we have no material close in terms of properties to what is needed to make a remotely feasible space elevator on Earth (at least 100GPa at the density of graphite), and it may not even be physically possible.  Some people have theorized that SWNTs could be that strong, but the strongest SWNTs measured so far are about 60GPa -- and that's for *individual nanotubes*, let alone nanotube bundles, let alone composites made out of nanotube bundles many thousands of miles long.  MWNTs have been measured somewhat stronger, but they're a lot denser, so that doesn't help.  I mean, even if you ignore the other issues that have been shown to be huge stumbling blocks with space elevators, such as oscillations, that's really a killer.</p><p>These competitions come across as though someone started promoting their new "Levitation Shoes" with the following exciting announcement:</p><p>"Good news, Levitation Shoe engineers!  We will be hosing a Levitation Shoe shoelace-development contest.  As you all know, we need to solve the issue of shoelaces being able to withstand the wearer getting buffeted around by high altitude winds without breaking or becoming untied, so we've reserved a site with a huge fan that you can test your shoelace prototypes on!  This will bring us one step closer to the dream of Levitation Shoes."</p><p>Honestly, much more realistic than a space elevator appears to be a <a href="http://en.wikipedia.org/wiki/Launch\_loop" title="wikipedia.org">Launch Loop</a> [wikipedia.org].  No nonexistent (and possibly even impossible) materials required.</p></htmltext>
<tokenext>Yeah , even if you use ridiculous voltages , it 's just not going to happen.Plus , these competitions always seem like putting the cart before the horse .
The elephant in the room is that we have no material close in terms of properties to what is needed to make a remotely feasible space elevator on Earth ( at least 100GPa at the density of graphite ) , and it may not even be physically possible .
Some people have theorized that SWNTs could be that strong , but the strongest SWNTs measured so far are about 60GPa -- and that 's for * individual nanotubes * , let alone nanotube bundles , let alone composites made out of nanotube bundles many thousands of miles long .
MWNTs have been measured somewhat stronger , but they 're a lot denser , so that does n't help .
I mean , even if you ignore the other issues that have been shown to be huge stumbling blocks with space elevators , such as oscillations , that 's really a killer.These competitions come across as though someone started promoting their new " Levitation Shoes " with the following exciting announcement : " Good news , Levitation Shoe engineers !
We will be hosing a Levitation Shoe shoelace-development contest .
As you all know , we need to solve the issue of shoelaces being able to withstand the wearer getting buffeted around by high altitude winds without breaking or becoming untied , so we 've reserved a site with a huge fan that you can test your shoelace prototypes on !
This will bring us one step closer to the dream of Levitation Shoes .
" Honestly , much more realistic than a space elevator appears to be a Launch Loop [ wikipedia.org ] .
No nonexistent ( and possibly even impossible ) materials required .</tokentext>
<sentencetext>Yeah, even if you use ridiculous voltages, it's just not going to happen.Plus, these competitions always seem like putting the cart before the horse.
The elephant in the room is that we have no material close in terms of properties to what is needed to make a remotely feasible space elevator on Earth (at least 100GPa at the density of graphite), and it may not even be physically possible.
Some people have theorized that SWNTs could be that strong, but the strongest SWNTs measured so far are about 60GPa -- and that's for *individual nanotubes*, let alone nanotube bundles, let alone composites made out of nanotube bundles many thousands of miles long.
MWNTs have been measured somewhat stronger, but they're a lot denser, so that doesn't help.
I mean, even if you ignore the other issues that have been shown to be huge stumbling blocks with space elevators, such as oscillations, that's really a killer.These competitions come across as though someone started promoting their new "Levitation Shoes" with the following exciting announcement:"Good news, Levitation Shoe engineers!
We will be hosing a Levitation Shoe shoelace-development contest.
As you all know, we need to solve the issue of shoelaces being able to withstand the wearer getting buffeted around by high altitude winds without breaking or becoming untied, so we've reserved a site with a huge fan that you can test your shoelace prototypes on!
This will bring us one step closer to the dream of Levitation Shoes.
"Honestly, much more realistic than a space elevator appears to be a Launch Loop [wikipedia.org].
No nonexistent (and possibly even impossible) materials required.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851481</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29854643</id>
	<title>Re:Why not just use wires?</title>
	<author>khallow</author>
	<datestamp>1256326080000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p><div class="quote"><p>Why must we beam the power to a space elevator?</p> </div><p>Unless you're using superconducting wire in your tether, beamed power loses far less energy. Common loss rates for regular copper wire is something like several percent per 100 km. That's about as good as it gets. And the mass is way too heavy.</p></div>
	</htmltext>
<tokenext>Why must we beam the power to a space elevator ?
Unless you 're using superconducting wire in your tether , beamed power loses far less energy .
Common loss rates for regular copper wire is something like several percent per 100 km .
That 's about as good as it gets .
And the mass is way too heavy .</tokentext>
<sentencetext>Why must we beam the power to a space elevator?
Unless you're using superconducting wire in your tether, beamed power loses far less energy.
Common loss rates for regular copper wire is something like several percent per 100 km.
That's about as good as it gets.
And the mass is way too heavy.
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851329</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29853917</id>
	<title>Re:Why a helicopter?</title>
	<author>Anonymous</author>
	<datestamp>1256313720000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>The original plan was to use a tethered blip type balloon, but leasing a helicopter was deemed less expensive. It to comes with its own issues, not the least is the copter hovering at ~1km maintaining a constant tension on the cable as the climber ascends. I too expressed concerns about a manned aircraft having a 5KW laser beamed at it, but that seems to have been addressed. I was very briefly involved with one of the teams until my main job intruded, think that there is a lot to be learned from the effort.</htmltext>
<tokenext>The original plan was to use a tethered blip type balloon , but leasing a helicopter was deemed less expensive .
It to comes with its own issues , not the least is the copter hovering at ~ 1km maintaining a constant tension on the cable as the climber ascends .
I too expressed concerns about a manned aircraft having a 5KW laser beamed at it , but that seems to have been addressed .
I was very briefly involved with one of the teams until my main job intruded , think that there is a lot to be learned from the effort .</tokentext>
<sentencetext>The original plan was to use a tethered blip type balloon, but leasing a helicopter was deemed less expensive.
It to comes with its own issues, not the least is the copter hovering at ~1km maintaining a constant tension on the cable as the climber ascends.
I too expressed concerns about a manned aircraft having a 5KW laser beamed at it, but that seems to have been addressed.
I was very briefly involved with one of the teams until my main job intruded, think that there is a lot to be learned from the effort.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851519</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851835</id>
	<title>Re:Why not just use wires?</title>
	<author>Anonymous</author>
	<datestamp>1256293200000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>2</modscore>
	<htmltext><p>There are limitations to the length of power lines for other than mechanical reasons. It is 36000km (22000miles) to Geosynchronous orbit, which is where we ultimately want to go with this thing. Using cables for anything near that is highly problematic. (longest power line on earth is about 1700 km)</p><p><a href="http://en.wikipedia.org/wiki/Electric\_power\_transmission" title="wikipedia.org" rel="nofollow">http://en.wikipedia.org/wiki/Electric\_power\_transmission</a> [wikipedia.org]</p></htmltext>
<tokenext>There are limitations to the length of power lines for other than mechanical reasons .
It is 36000km ( 22000miles ) to Geosynchronous orbit , which is where we ultimately want to go with this thing .
Using cables for anything near that is highly problematic .
( longest power line on earth is about 1700 km ) http : //en.wikipedia.org/wiki/Electric \ _power \ _transmission [ wikipedia.org ]</tokentext>
<sentencetext>There are limitations to the length of power lines for other than mechanical reasons.
It is 36000km (22000miles) to Geosynchronous orbit, which is where we ultimately want to go with this thing.
Using cables for anything near that is highly problematic.
(longest power line on earth is about 1700 km)http://en.wikipedia.org/wiki/Electric\_power\_transmission [wikipedia.org]</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851329</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29855477</id>
	<title>Legal troubles ahead</title>
	<author>Anonymous</author>
	<datestamp>1256387340000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext>&gt; The competition involves using a high-power laser to beam power to a robot that climbs a kilometer-high cable attached to a helicopter.<br> <br>

They will be <a href="http://slashdot.org/comments.pl?sid=1413441&amp;cid=29832511" title="slashdot.org" rel="nofollow">sued by RIAA for this...</a> [slashdot.org]</htmltext>
<tokenext>&gt; The competition involves using a high-power laser to beam power to a robot that climbs a kilometer-high cable attached to a helicopter .
They will be sued by RIAA for this... [ slashdot.org ]</tokentext>
<sentencetext>&gt; The competition involves using a high-power laser to beam power to a robot that climbs a kilometer-high cable attached to a helicopter.
They will be sued by RIAA for this... [slashdot.org]</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29852417</id>
	<title>Day of the Dead</title>
	<author>LordByronStyrofoam</author>
	<datestamp>1256297040000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>Coincidence?  I hope so...</htmltext>
<tokenext>Coincidence ?
I hope so.. .</tokentext>
<sentencetext>Coincidence?
I hope so...</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851415</id>
	<title>Typo?</title>
	<author>n3v</author>
	<datestamp>1256291340000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>"or to power a rover in a shadowed creator on the moon"</p><p>s/creator/crater/</p><p>?</p><p>htmm</p></htmltext>
<tokenext>" or to power a rover in a shadowed creator on the moon " s/creator/crater/ ? htmm</tokentext>
<sentencetext>"or to power a rover in a shadowed creator on the moon"s/creator/crater/?htmm</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851783</id>
	<title>haha</title>
	<author>Anonymous</author>
	<datestamp>1256293020000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>love the "typo" tag, haha. "shadowed creator on the moon"</p></htmltext>
<tokenext>love the " typo " tag , haha .
" shadowed creator on the moon "</tokentext>
<sentencetext>love the "typo" tag, haha.
"shadowed creator on the moon"</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851661</id>
	<title>Re:simpler test</title>
	<author>mpoulton</author>
	<datestamp>1256292300000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p><div class="quote"><p>why don't they just try a 1km ground based test first?   I can't imagine this is safe for the chopper.  Much needless complication for testing the technology.</p></div><p>Because gravity goes down, not sideways?  Seriously, that's simply not even remotely comparable.  The entire challenge here is to climb a straight, vertical cable against a 1G vertical acceleration.  Crawling along a horizontal catenary-shaped cable with a 1G sideways acceleration is a completely different problem to solve.</p></div>
	</htmltext>
<tokenext>why do n't they just try a 1km ground based test first ?
I ca n't imagine this is safe for the chopper .
Much needless complication for testing the technology.Because gravity goes down , not sideways ?
Seriously , that 's simply not even remotely comparable .
The entire challenge here is to climb a straight , vertical cable against a 1G vertical acceleration .
Crawling along a horizontal catenary-shaped cable with a 1G sideways acceleration is a completely different problem to solve .</tokentext>
<sentencetext>why don't they just try a 1km ground based test first?
I can't imagine this is safe for the chopper.
Much needless complication for testing the technology.Because gravity goes down, not sideways?
Seriously, that's simply not even remotely comparable.
The entire challenge here is to climb a straight, vertical cable against a 1G vertical acceleration.
Crawling along a horizontal catenary-shaped cable with a 1G sideways acceleration is a completely different problem to solve.
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851569</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851997</id>
	<title>Re:Why a helicopter?</title>
	<author>quercus.aeternam</author>
	<datestamp>1256294100000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>And what happens if you miss and hit the balloon?</p><p>Balloons are a lot more susceptible to lasers than helicopters (or so I hear...)</p></htmltext>
<tokenext>And what happens if you miss and hit the balloon ? Balloons are a lot more susceptible to lasers than helicopters ( or so I hear... )</tokentext>
<sentencetext>And what happens if you miss and hit the balloon?Balloons are a lot more susceptible to lasers than helicopters (or so I hear...)</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851519</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851503</id>
	<title>Re:Why not just use wires?</title>
	<author>decipher\_saint</author>
	<datestamp>1256291640000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>I believe that the cable used for a space elevator must be as lightweight and strong as possible. Running power through that infrastructure will add weight and weaken the structure (maintenance access, etc). Not to mention drive up costs and add complexity.</p><p>I dunno, just shooting from the hip here.</p></htmltext>
<tokenext>I believe that the cable used for a space elevator must be as lightweight and strong as possible .
Running power through that infrastructure will add weight and weaken the structure ( maintenance access , etc ) .
Not to mention drive up costs and add complexity.I dunno , just shooting from the hip here .</tokentext>
<sentencetext>I believe that the cable used for a space elevator must be as lightweight and strong as possible.
Running power through that infrastructure will add weight and weaken the structure (maintenance access, etc).
Not to mention drive up costs and add complexity.I dunno, just shooting from the hip here.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851329</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29852103</id>
	<title>Re:simpler test</title>
	<author>Absolut187</author>
	<datestamp>1256294880000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>If only there was a <a href="http://en.wikipedia.org/wiki/Grand\_Canyon" title="wikipedia.org">natural 1km+ vertical rock face</a> [wikipedia.org] somewhere in the US, they wouldnt need the helicopter.</p></htmltext>
<tokenext>If only there was a natural 1km + vertical rock face [ wikipedia.org ] somewhere in the US , they wouldnt need the helicopter .</tokentext>
<sentencetext>If only there was a natural 1km+ vertical rock face [wikipedia.org] somewhere in the US, they wouldnt need the helicopter.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851569</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851703</id>
	<title>Re:Why a helicopter?</title>
	<author>jimbolauski</author>
	<datestamp>1256292540000</datestamp>
	<modclass>Insightful</modclass>
	<modscore>3</modscore>
	<htmltext>1 m^3 of helium has about 1kg of buoyancy, to lift 1km cable along with the elevator would require a very large balloon, the winds at 1KM are much stronger then on the surface so the giant balloon would be blown all over the place with a laser pointed at it I'm sure you can figure out the rest.</htmltext>
<tokenext>1 m ^ 3 of helium has about 1kg of buoyancy , to lift 1km cable along with the elevator would require a very large balloon , the winds at 1KM are much stronger then on the surface so the giant balloon would be blown all over the place with a laser pointed at it I 'm sure you can figure out the rest .</tokentext>
<sentencetext>1 m^3 of helium has about 1kg of buoyancy, to lift 1km cable along with the elevator would require a very large balloon, the winds at 1KM are much stronger then on the surface so the giant balloon would be blown all over the place with a laser pointed at it I'm sure you can figure out the rest.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851519</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851329</id>
	<title>Why not just use wires?</title>
	<author>Anonymous</author>
	<datestamp>1256291040000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>4</modscore>
	<htmltext>Why must we beam the power to a space elevator?
<br> <br>
Wouldn't it be reasonable to use wire conductors? If we will be able to build the support lines that can span from the earth to orbit, why couldn't we also make a couple of smaller ones inside the main one for carrying power? Or why not just use the support lines themselves to provide power (assuming there are multiple support lines for redundancy)?
<br> <br>
Can anyone provide some more insight into this? I haven't been able to find a decent explanation</htmltext>
<tokenext>Why must we beam the power to a space elevator ?
Would n't it be reasonable to use wire conductors ?
If we will be able to build the support lines that can span from the earth to orbit , why could n't we also make a couple of smaller ones inside the main one for carrying power ?
Or why not just use the support lines themselves to provide power ( assuming there are multiple support lines for redundancy ) ?
Can anyone provide some more insight into this ?
I have n't been able to find a decent explanation</tokentext>
<sentencetext>Why must we beam the power to a space elevator?
Wouldn't it be reasonable to use wire conductors?
If we will be able to build the support lines that can span from the earth to orbit, why couldn't we also make a couple of smaller ones inside the main one for carrying power?
Or why not just use the support lines themselves to provide power (assuming there are multiple support lines for redundancy)?
Can anyone provide some more insight into this?
I haven't been able to find a decent explanation</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29852719</id>
	<title>Re:Why a helicopter?</title>
	<author>Zerth</author>
	<datestamp>1256299140000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>They want to be able to screw with the contestants, which sort of requires a self-moving endpoint.</p></htmltext>
<tokenext>They want to be able to screw with the contestants , which sort of requires a self-moving endpoint .</tokentext>
<sentencetext>They want to be able to screw with the contestants, which sort of requires a self-moving endpoint.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851519</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851679</id>
	<title>Re:Why not just use wires?</title>
	<author>vertinox</author>
	<datestamp>1256292360000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p><i>Wouldn't it be reasonable to use wire conductors?</i></p><p>Because a space elevator will have cables over 90 km which will either need repeaters every so often or some hellacious voltage to push power that far over high voltage power wires.</p><p>And if you have seen close up on those high lines... Are rather thick bundles.</p><p>And 90km of that stuff is not going to be able to support its own weight.</p></htmltext>
<tokenext>Would n't it be reasonable to use wire conductors ? Because a space elevator will have cables over 90 km which will either need repeaters every so often or some hellacious voltage to push power that far over high voltage power wires.And if you have seen close up on those high lines... Are rather thick bundles.And 90km of that stuff is not going to be able to support its own weight .</tokentext>
<sentencetext>Wouldn't it be reasonable to use wire conductors?Because a space elevator will have cables over 90 km which will either need repeaters every so often or some hellacious voltage to push power that far over high voltage power wires.And if you have seen close up on those high lines... Are rather thick bundles.And 90km of that stuff is not going to be able to support its own weight.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851329</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29852175</id>
	<title>Re:Why not just use wires?</title>
	<author>gurps\_npc</author>
	<datestamp>1256295420000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>3</modscore>
	<htmltext>It is totally correct that we can't make a space elevator right now.
<p>
But we could make a space elevator.
</p><p>1.  Take a particle accelerator, preferably one built at a high altitude.  You should be able to start at least 4000 meters above sea level (China's Qinghai-Tibet Plateau averages 4,500 meters.
</p><p>2.  Put a bend in the output - straight up.
</p><p>3.  Detach the final u turn that bends the particle stream down again.
</p><p>4.  Add some magnets to recover power from the particle stream.  Use it to power the magnets in the final U bend, that is now detached.
</p><p>5.  Focus the energy so that the it is self-centers the now detached final U.
</p><p>6.  Up the power.  The detached U bend now floats.
</p><p>7.  Keep raising the power. U bend keeps going up.
</p><p>8.  At low altitudes, the atmosphere will drain massive energy.  So build an air-tight 2000 meter tower around the particle stream.   At the very least this should take you 6000 meters above sea level.  Air pressure is now 50\% sea level.  This will reduce power consumption
</p><p>Problems:  1.  Power requirements will be HIGH.  We will need to build a Nuclear power plant (probably a 2nd on as a backup).   2.  We will building the tallest man made structure on Earth, at one of the highest points on Earth.  3.  A lot of untested engineering, although the physics is known.</p></htmltext>
<tokenext>It is totally correct that we ca n't make a space elevator right now .
But we could make a space elevator .
1. Take a particle accelerator , preferably one built at a high altitude .
You should be able to start at least 4000 meters above sea level ( China 's Qinghai-Tibet Plateau averages 4,500 meters .
2. Put a bend in the output - straight up .
3. Detach the final u turn that bends the particle stream down again .
4. Add some magnets to recover power from the particle stream .
Use it to power the magnets in the final U bend , that is now detached .
5. Focus the energy so that the it is self-centers the now detached final U .
6. Up the power .
The detached U bend now floats .
7. Keep raising the power .
U bend keeps going up .
8. At low altitudes , the atmosphere will drain massive energy .
So build an air-tight 2000 meter tower around the particle stream .
At the very least this should take you 6000 meters above sea level .
Air pressure is now 50 \ % sea level .
This will reduce power consumption Problems : 1 .
Power requirements will be HIGH .
We will need to build a Nuclear power plant ( probably a 2nd on as a backup ) .
2. We will building the tallest man made structure on Earth , at one of the highest points on Earth .
3. A lot of untested engineering , although the physics is known .</tokentext>
<sentencetext>It is totally correct that we can't make a space elevator right now.
But we could make a space elevator.
1.  Take a particle accelerator, preferably one built at a high altitude.
You should be able to start at least 4000 meters above sea level (China's Qinghai-Tibet Plateau averages 4,500 meters.
2.  Put a bend in the output - straight up.
3.  Detach the final u turn that bends the particle stream down again.
4.  Add some magnets to recover power from the particle stream.
Use it to power the magnets in the final U bend, that is now detached.
5.  Focus the energy so that the it is self-centers the now detached final U.
6.  Up the power.
The detached U bend now floats.
7.  Keep raising the power.
U bend keeps going up.
8.  At low altitudes, the atmosphere will drain massive energy.
So build an air-tight 2000 meter tower around the particle stream.
At the very least this should take you 6000 meters above sea level.
Air pressure is now 50\% sea level.
This will reduce power consumption
Problems:  1.
Power requirements will be HIGH.
We will need to build a Nuclear power plant (probably a 2nd on as a backup).
2.  We will building the tallest man made structure on Earth, at one of the highest points on Earth.
3.  A lot of untested engineering, although the physics is known.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851859</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851831</id>
	<title>Re:Why not just use wires?</title>
	<author>Anonymous</author>
	<datestamp>1256293200000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>10,000 miles? I thought space was only 20 miles up.</p></htmltext>
<tokenext>10,000 miles ?
I thought space was only 20 miles up .</tokentext>
<sentencetext>10,000 miles?
I thought space was only 20 miles up.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851481</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29852053</id>
	<title>Re:Why not just use wires?</title>
	<author>Gerzel</author>
	<datestamp>1256294460000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>Really I'd rather see the beam being used w/o the cable.  You should be able to move the beam and get correction for trajectory information sent back on a wider down stream beam.  I think that would be a lot safer, and technically more reasonable than a full fledged elevator and signifigantly cut the fuel load.</p></htmltext>
<tokenext>Really I 'd rather see the beam being used w/o the cable .
You should be able to move the beam and get correction for trajectory information sent back on a wider down stream beam .
I think that would be a lot safer , and technically more reasonable than a full fledged elevator and signifigantly cut the fuel load .</tokentext>
<sentencetext>Really I'd rather see the beam being used w/o the cable.
You should be able to move the beam and get correction for trajectory information sent back on a wider down stream beam.
I think that would be a lot safer, and technically more reasonable than a full fledged elevator and signifigantly cut the fuel load.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851329</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29852689</id>
	<title>Finally!</title>
	<author>seanthenerd</author>
	<datestamp>1256298900000</datestamp>
	<modclass>Informativ</modclass>
	<modscore>2</modscore>
	<htmltext>My older brother is the design head for the University of Saskatchewan team, the front-runners of the past competitions.  Suffice to say they're really excited about it, since this competition has been delayed month by month since about a year ago! It'll be neat to see everything actually all come together.<br> <br>
You can watch a sweet (if cheesy) video about the team <a href="http://usst.usask.ca/" title="usask.ca">on their website</a> [usask.ca].</htmltext>
<tokenext>My older brother is the design head for the University of Saskatchewan team , the front-runners of the past competitions .
Suffice to say they 're really excited about it , since this competition has been delayed month by month since about a year ago !
It 'll be neat to see everything actually all come together .
You can watch a sweet ( if cheesy ) video about the team on their website [ usask.ca ] .</tokentext>
<sentencetext>My older brother is the design head for the University of Saskatchewan team, the front-runners of the past competitions.
Suffice to say they're really excited about it, since this competition has been delayed month by month since about a year ago!
It'll be neat to see everything actually all come together.
You can watch a sweet (if cheesy) video about the team on their website [usask.ca].</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29852143</id>
	<title>I for one...</title>
	<author>Sawopox</author>
	<datestamp>1256295180000</datestamp>
	<modclass>Funny</modclass>
	<modscore>2</modscore>
	<htmltext><p>...will be staying inside, under my tinfoil hat on November 2nd.</p><p>Thank you.</p><p>(Also, need food, water, and ammo.)</p></htmltext>
<tokenext>...will be staying inside , under my tinfoil hat on November 2nd.Thank you .
( Also , need food , water , and ammo .
)</tokentext>
<sentencetext>...will be staying inside, under my tinfoil hat on November 2nd.Thank you.
(Also, need food, water, and ammo.
)</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851645</id>
	<title>More useful applications</title>
	<author>Monkeedude1212</author>
	<datestamp>1256292240000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>These guys are thinking way too small. Think if we really got this project going, we could sell handheld energy beaming devices to everyone! Imagine the applications!</p><p>Forgot to charge your cell phone? Not a problem!<br>Car Battery Dead? Easy Peasy!<br>Girlfriend not turned on? Eh... Well....</p></htmltext>
<tokenext>These guys are thinking way too small .
Think if we really got this project going , we could sell handheld energy beaming devices to everyone !
Imagine the applications ! Forgot to charge your cell phone ?
Not a problem ! Car Battery Dead ?
Easy Peasy ! Girlfriend not turned on ?
Eh... Well... .</tokentext>
<sentencetext>These guys are thinking way too small.
Think if we really got this project going, we could sell handheld energy beaming devices to everyone!
Imagine the applications!Forgot to charge your cell phone?
Not a problem!Car Battery Dead?
Easy Peasy!Girlfriend not turned on?
Eh... Well....</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851493</id>
	<title>I see a problem.</title>
	<author>WoRLoKKeD</author>
	<datestamp>1256291640000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>This is all well and good, but how are they going to keep the sharks focused on the kilometer-high robot?</htmltext>
<tokenext>This is all well and good , but how are they going to keep the sharks focused on the kilometer-high robot ?</tokentext>
<sentencetext>This is all well and good, but how are they going to keep the sharks focused on the kilometer-high robot?</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29853179</id>
	<title>The Space elevators is going to be</title>
	<author>geekoid</author>
	<datestamp>1256304120000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>the flying hover car of the 21st century.</p></htmltext>
<tokenext>the flying hover car of the 21st century .</tokentext>
<sentencetext>the flying hover car of the 21st century.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851569</id>
	<title>simpler test</title>
	<author>Anonymous</author>
	<datestamp>1256291880000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>why don't they just try a 1km ground based test first?   I can't imagine this is safe for the chopper.  Much needless complication for testing the technology.</htmltext>
<tokenext>why do n't they just try a 1km ground based test first ?
I ca n't imagine this is safe for the chopper .
Much needless complication for testing the technology .</tokentext>
<sentencetext>why don't they just try a 1km ground based test first?
I can't imagine this is safe for the chopper.
Much needless complication for testing the technology.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851483</id>
	<title>Got a pussy in my panties</title>
	<author>Anonymous</author>
	<datestamp>1256291580000</datestamp>
	<modclass>Offtopic</modclass>
	<modscore>-1</modscore>
	<htmltext><p>She got a pussy in her panties<br>She wore a pussy thong</p></htmltext>
<tokenext>She got a pussy in her pantiesShe wore a pussy thong</tokentext>
<sentencetext>She got a pussy in her pantiesShe wore a pussy thong</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851537</id>
	<title>Weight</title>
	<author>NoYob</author>
	<datestamp>1256291820000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>I'm guessing it's a weight issue. Putting a conductor necessary to carry that much current in with the carbon-nanotube ribbon (that is still the preferred tech isn't it?) would just add so much weight as to make the elevator impracticable.  Just look at the size of the copper to power a 120v outlet. Could they make the carbon strip itself conductive?</htmltext>
<tokenext>I 'm guessing it 's a weight issue .
Putting a conductor necessary to carry that much current in with the carbon-nanotube ribbon ( that is still the preferred tech is n't it ?
) would just add so much weight as to make the elevator impracticable .
Just look at the size of the copper to power a 120v outlet .
Could they make the carbon strip itself conductive ?</tokentext>
<sentencetext>I'm guessing it's a weight issue.
Putting a conductor necessary to carry that much current in with the carbon-nanotube ribbon (that is still the preferred tech isn't it?
) would just add so much weight as to make the elevator impracticable.
Just look at the size of the copper to power a 120v outlet.
Could they make the carbon strip itself conductive?</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851329</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851737</id>
	<title>Re:Why not just use wires?</title>
	<author>fred fleenblat</author>
	<datestamp>1256292780000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>5</modscore>
	<htmltext><p>aside from the weight issue, shouldn't the cable specifically be designed to be an insulator anyway?  Shorting out the fair weather return current and/or tapping into particle storms in the upper atmosphere seems like it could lead to some nasty little electrical issues.</p></htmltext>
<tokenext>aside from the weight issue , should n't the cable specifically be designed to be an insulator anyway ?
Shorting out the fair weather return current and/or tapping into particle storms in the upper atmosphere seems like it could lead to some nasty little electrical issues .</tokentext>
<sentencetext>aside from the weight issue, shouldn't the cable specifically be designed to be an insulator anyway?
Shorting out the fair weather return current and/or tapping into particle storms in the upper atmosphere seems like it could lead to some nasty little electrical issues.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851329</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851887</id>
	<title>I'm not sure if that shadowed creator...</title>
	<author>Anonymous</author>
	<datestamp>1256293560000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>will appreciate us sending a rover inside him.  I know I would be pissed...</p></htmltext>
<tokenext>will appreciate us sending a rover inside him .
I know I would be pissed.. .</tokentext>
<sentencetext>will appreciate us sending a rover inside him.
I know I would be pissed...</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29856045</id>
	<title>Count me out as an observer</title>
	<author>smoker2</author>
	<datestamp>1256393820000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>I wouldn't stand within a kilometre of this test. What if the helicopter has to ditch the cable in an emergency ? 1km of cable with attached crawler falling on your head would not be pretty.</htmltext>
<tokenext>I would n't stand within a kilometre of this test .
What if the helicopter has to ditch the cable in an emergency ?
1km of cable with attached crawler falling on your head would not be pretty .</tokentext>
<sentencetext>I wouldn't stand within a kilometre of this test.
What if the helicopter has to ditch the cable in an emergency ?
1km of cable with attached crawler falling on your head would not be pretty.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851375</id>
	<title>Cornbread</title>
	<author>Anonymous</author>
	<datestamp>1256291220000</datestamp>
	<modclass>Offtopic</modclass>
	<modscore>-1</modscore>
	<htmltext><p>"Their cornbread is off the chain." - coworker</p></htmltext>
<tokenext>" Their cornbread is off the chain .
" - coworker</tokentext>
<sentencetext>"Their cornbread is off the chain.
" - coworker</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851469</id>
	<title>In other news....</title>
	<author>snspdaarf</author>
	<datestamp>1256291580000</datestamp>
	<modclass>Funny</modclass>
	<modscore>4</modscore>
	<htmltext>High-powered laser shoots down helicopter. Film at eleven.</htmltext>
<tokenext>High-powered laser shoots down helicopter .
Film at eleven .</tokentext>
<sentencetext>High-powered laser shoots down helicopter.
Film at eleven.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851559</id>
	<title>Shadowed Creator?</title>
	<author>pavon</author>
	<datestamp>1256291880000</datestamp>
	<modclass>Funny</modclass>
	<modscore>2</modscore>
	<htmltext><p><div class="quote"><p>The NASA Centennial Challenge Powered Beaming competition, to develop technology for uses such as a space elevator, or to power a rover in a <em>shadowed creator</em> on the moon, was delayed indefinitely due to trouble setting up the <em>kilometer high race track</em>.</p></div><p>Yes, well they should have known that you can't build Barad-d&#251;r in a day.</p></div>
	</htmltext>
<tokenext>The NASA Centennial Challenge Powered Beaming competition , to develop technology for uses such as a space elevator , or to power a rover in a shadowed creator on the moon , was delayed indefinitely due to trouble setting up the kilometer high race track.Yes , well they should have known that you ca n't build Barad-d   r in a day .</tokentext>
<sentencetext>The NASA Centennial Challenge Powered Beaming competition, to develop technology for uses such as a space elevator, or to power a rover in a shadowed creator on the moon, was delayed indefinitely due to trouble setting up the kilometer high race track.Yes, well they should have known that you can't build Barad-dûr in a day.
	</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851955</id>
	<title>Nuclear</title>
	<author>lobiusmoop</author>
	<datestamp>1256293920000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>Just equip the lift with a nuclear engine. If it's good enough for submarines it's good enough here. High power output and 40 year lifespan.</p></htmltext>
<tokenext>Just equip the lift with a nuclear engine .
If it 's good enough for submarines it 's good enough here .
High power output and 40 year lifespan .</tokentext>
<sentencetext>Just equip the lift with a nuclear engine.
If it's good enough for submarines it's good enough here.
High power output and 40 year lifespan.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851481</id>
	<title>Re:Why not just use wires?</title>
	<author>Anonymous</author>
	<datestamp>1256291580000</datestamp>
	<modclass>Informativ</modclass>
	<modscore>4</modscore>
	<htmltext>The tensile strength of an eventual space elevator material is not related to its electrical conductivity or resistance. 10,000 miles of a conductor will (currently) weigh more than its own tensile strength could support.</htmltext>
<tokenext>The tensile strength of an eventual space elevator material is not related to its electrical conductivity or resistance .
10,000 miles of a conductor will ( currently ) weigh more than its own tensile strength could support .</tokentext>
<sentencetext>The tensile strength of an eventual space elevator material is not related to its electrical conductivity or resistance.
10,000 miles of a conductor will (currently) weigh more than its own tensile strength could support.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851329</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851895</id>
	<title>Re:Why a helicopter?</title>
	<author>UnglueD</author>
	<datestamp>1256293560000</datestamp>
	<modclass>Funny</modclass>
	<modscore>2</modscore>
	<htmltext>They could have some kid, preferably named falcon, sit in the balloon to make sure it stays put.</htmltext>
<tokenext>They could have some kid , preferably named falcon , sit in the balloon to make sure it stays put .</tokentext>
<sentencetext>They could have some kid, preferably named falcon, sit in the balloon to make sure it stays put.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851519</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29852047</id>
	<title>Delay</title>
	<author>SnarfQuest</author>
	<datestamp>1256294400000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>Was the delay caused by problems with the shark tank?</p></htmltext>
<tokenext>Was the delay caused by problems with the shark tank ?</tokentext>
<sentencetext>Was the delay caused by problems with the shark tank?</sentencetext>
</comment>
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-http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851997
--http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29853851
--http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29852639
-http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851703
-http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851895
-http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29853917
-http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29852719
</commentlist>
</conversation>
<conversation>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#conversation09_10_23_1743206.6</id>
	<commentlist>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851645
</commentlist>
</conversation>
<conversation>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#conversation09_10_23_1743206.1</id>
	<commentlist>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851569
-http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29852103
-http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851661
</commentlist>
</conversation>
<conversation>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#conversation09_10_23_1743206.4</id>
	<commentlist>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851761
</commentlist>
</conversation>
<conversation>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#conversation09_10_23_1743206.7</id>
	<commentlist>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851329
-http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851533
-http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851835
-http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851679
-http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29855029
-http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29852053
-http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851503
-http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29854023
-http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851537
-http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851481
--http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851905
--http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29852291
--http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851831
--http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851859
---http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29852175
---http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29852553
-http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851737
-http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29854643
</commentlist>
</conversation>
<conversation>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#conversation09_10_23_1743206.5</id>
	<commentlist>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_10_23_1743206.29851629
</commentlist>
</conversation>
