<article>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#article09_07_04_2246211</id>
	<title>You, Too, Can Learn Echolocation</title>
	<author>timothy</author>
	<datestamp>1246712760000</datestamp>
	<htmltext><a href="http://narrativefallacy.com/" rel="nofollow">The Narrative Fallacy</a> writes <i>"Wired reports that with just a few weeks of training, <a href="http://www.wired.com/wiredscience/2009/06/echolocation/">you can learn to 'see' objects in the dark</a> using echolocation the same way dolphins and bats do. Acoustic expert Juan Antonio Martinez at the University of Alcal&#225; de Henares in Spain has developed a system to teach people how to use echolocation, <a href="http://www.youtube.com/watch?v=y\_k8Wgor1FE">a skill that could be particularly useful for the blind</a> and for people who work under dark or smoky conditions, like firefighters &mdash; or cat burglars. 'Two hours per day for a couple of weeks are enough to distinguish whether you have an object in front of you,' says Martinez. 'Within another couple weeks you can tell the difference between trees and pavement.' To master the art of echolocation, you can begin by <a href="http://www.eurekalert.org/pub\_releases/2009-06/f-sf-ssd063009.php">making the typical 'sh' sound used to make someone be quiet</a>. Moving a pen in front of the mouth can be noticed right away similar to the phenomenon when traveling in a car with the windows down, which makes it possible to 'hear' gaps in the verge of the road. The next level is to learn how to master 'palate clicks,' special clicks with your tongue and palate that are better than other sounds because they can be made in a uniform way, work at a lower intensity, and don't get drowned out by ambient noise.  With the palate click you can learn to recognize slight changes in the way the clicks sound depending on what objects are nearby. 'For all of us in general, this would be a new way of perceiving the world,' says Martinez."</i></htmltext>
<tokenext>The Narrative Fallacy writes " Wired reports that with just a few weeks of training , you can learn to 'see ' objects in the dark using echolocation the same way dolphins and bats do .
Acoustic expert Juan Antonio Martinez at the University of Alcal   de Henares in Spain has developed a system to teach people how to use echolocation , a skill that could be particularly useful for the blind and for people who work under dark or smoky conditions , like firefighters    or cat burglars .
'Two hours per day for a couple of weeks are enough to distinguish whether you have an object in front of you, ' says Martinez .
'Within another couple weeks you can tell the difference between trees and pavement .
' To master the art of echolocation , you can begin by making the typical 'sh ' sound used to make someone be quiet .
Moving a pen in front of the mouth can be noticed right away similar to the phenomenon when traveling in a car with the windows down , which makes it possible to 'hear ' gaps in the verge of the road .
The next level is to learn how to master 'palate clicks, ' special clicks with your tongue and palate that are better than other sounds because they can be made in a uniform way , work at a lower intensity , and do n't get drowned out by ambient noise .
With the palate click you can learn to recognize slight changes in the way the clicks sound depending on what objects are nearby .
'For all of us in general , this would be a new way of perceiving the world, ' says Martinez .
"</tokentext>
<sentencetext>The Narrative Fallacy writes "Wired reports that with just a few weeks of training, you can learn to 'see' objects in the dark using echolocation the same way dolphins and bats do.
Acoustic expert Juan Antonio Martinez at the University of Alcalá de Henares in Spain has developed a system to teach people how to use echolocation, a skill that could be particularly useful for the blind and for people who work under dark or smoky conditions, like firefighters — or cat burglars.
'Two hours per day for a couple of weeks are enough to distinguish whether you have an object in front of you,' says Martinez.
'Within another couple weeks you can tell the difference between trees and pavement.
' To master the art of echolocation, you can begin by making the typical 'sh' sound used to make someone be quiet.
Moving a pen in front of the mouth can be noticed right away similar to the phenomenon when traveling in a car with the windows down, which makes it possible to 'hear' gaps in the verge of the road.
The next level is to learn how to master 'palate clicks,' special clicks with your tongue and palate that are better than other sounds because they can be made in a uniform way, work at a lower intensity, and don't get drowned out by ambient noise.
With the palate click you can learn to recognize slight changes in the way the clicks sound depending on what objects are nearby.
'For all of us in general, this would be a new way of perceiving the world,' says Martinez.
"</sentencetext>
</article>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584349</id>
	<title>Re:Dubious</title>
	<author>MobileTatsu-NJG</author>
	<datestamp>1246726680000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p><div class="quote"><p>I'm saddened by your narrow world-view. You honestly do not think it's possible to fine-tune your brain to automatically discern variances in reflected sounds, in much the same way that it has been doing it for thousands of years?</p><p>I thought this 'story' was sensationalist as it was kind of <em>obvious</em> to me. Thus I was <em>very</em> surprised to find your post.</p></div><p>Kinda makes you wonder what his skull sounds like under echo-location.</p></div>
	</htmltext>
<tokenext>I 'm saddened by your narrow world-view .
You honestly do not think it 's possible to fine-tune your brain to automatically discern variances in reflected sounds , in much the same way that it has been doing it for thousands of years ? I thought this 'story ' was sensationalist as it was kind of obvious to me .
Thus I was very surprised to find your post.Kinda makes you wonder what his skull sounds like under echo-location .</tokentext>
<sentencetext>I'm saddened by your narrow world-view.
You honestly do not think it's possible to fine-tune your brain to automatically discern variances in reflected sounds, in much the same way that it has been doing it for thousands of years?I thought this 'story' was sensationalist as it was kind of obvious to me.
Thus I was very surprised to find your post.Kinda makes you wonder what his skull sounds like under echo-location.
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583769</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584905</id>
	<title>Re:Dubious</title>
	<author>TheLink</author>
	<datestamp>1246824180000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>&gt; in much the same way that it has been doing it for \_thousands\_ of years?</p><p>Easy for you to say Mr Vampire Man.</p></htmltext>
<tokenext>&gt; in much the same way that it has been doing it for \ _thousands \ _ of years ? Easy for you to say Mr Vampire Man .</tokentext>
<sentencetext>&gt; in much the same way that it has been doing it for \_thousands\_ of years?Easy for you to say Mr Vampire Man.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583769</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584405</id>
	<title>You might already be doing echo location</title>
	<author>Anonymous</author>
	<datestamp>1246727580000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>Our hearing systems are already highly tuned at identifying our environment through the character of existing sound environments (reverberation for example) - for example, it's fairly trivial to indentify if an audio recording was made in a room or outdoors.</p><p>Barry Blesser wrote the book <a href="http://www.blesser.net/spacesSpeak.html" title="blesser.net" rel="nofollow">Spaces Speak, Are You Listening? Experiencing Aural Architecture</a> [blesser.net] where he discusses the ability of people to interact with their environment just by relying on our ears alone. He describes an experiment where students are told to walk toward a wall with their eyes close, and to stop just short of the wall (without looking) and most students could do it without training, and by just relying on the ambient sounds and the sounds of their footsteps.</p><p>The book also describes a group of blind teenagers who mountain bike by using their ears to "see." (click on the link above).</p><p>We have the ability, we just don't think about it.</p></htmltext>
<tokenext>Our hearing systems are already highly tuned at identifying our environment through the character of existing sound environments ( reverberation for example ) - for example , it 's fairly trivial to indentify if an audio recording was made in a room or outdoors.Barry Blesser wrote the book Spaces Speak , Are You Listening ?
Experiencing Aural Architecture [ blesser.net ] where he discusses the ability of people to interact with their environment just by relying on our ears alone .
He describes an experiment where students are told to walk toward a wall with their eyes close , and to stop just short of the wall ( without looking ) and most students could do it without training , and by just relying on the ambient sounds and the sounds of their footsteps.The book also describes a group of blind teenagers who mountain bike by using their ears to " see .
" ( click on the link above ) .We have the ability , we just do n't think about it .</tokentext>
<sentencetext>Our hearing systems are already highly tuned at identifying our environment through the character of existing sound environments (reverberation for example) - for example, it's fairly trivial to indentify if an audio recording was made in a room or outdoors.Barry Blesser wrote the book Spaces Speak, Are You Listening?
Experiencing Aural Architecture [blesser.net] where he discusses the ability of people to interact with their environment just by relying on our ears alone.
He describes an experiment where students are told to walk toward a wall with their eyes close, and to stop just short of the wall (without looking) and most students could do it without training, and by just relying on the ambient sounds and the sounds of their footsteps.The book also describes a group of blind teenagers who mountain bike by using their ears to "see.
" (click on the link above).We have the ability, we just don't think about it.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28589529</id>
	<title>Re:Done that myself</title>
	<author>hawk</author>
	<datestamp>1246798380000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>&gt;Still, I am quite certain that blind people already do this without thinking about it.</p><p>Not quite without thinking about it.  However, my uncle (and no doubt many, many more) have been teaching the blind to do this with the taps of their cane for (at least) decades.</p><p>hawk</p></htmltext>
<tokenext>&gt; Still , I am quite certain that blind people already do this without thinking about it.Not quite without thinking about it .
However , my uncle ( and no doubt many , many more ) have been teaching the blind to do this with the taps of their cane for ( at least ) decades.hawk</tokentext>
<sentencetext>&gt;Still, I am quite certain that blind people already do this without thinking about it.Not quite without thinking about it.
However, my uncle (and no doubt many, many more) have been teaching the blind to do this with the taps of their cane for (at least) decades.hawk</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583813</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583803</id>
	<title>I am a firefighter</title>
	<author>Anonymous</author>
	<datestamp>1246718220000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>5</modscore>
	<htmltext><p>...you insensitive clod.<nobr> <wbr></nobr>...and one can't hear much in a working structure fire other than one's SCBA, the sounds of the fire, and your buddy on the hoseline.</p><p>Which is why we have flashlights and IR cameras mounted on our helmets.</p><p>Echolocation can be learned, just not applied in every low-light environment.</p></htmltext>
<tokenext>...you insensitive clod .
...and one ca n't hear much in a working structure fire other than one 's SCBA , the sounds of the fire , and your buddy on the hoseline.Which is why we have flashlights and IR cameras mounted on our helmets.Echolocation can be learned , just not applied in every low-light environment .</tokentext>
<sentencetext>...you insensitive clod.
...and one can't hear much in a working structure fire other than one's SCBA, the sounds of the fire, and your buddy on the hoseline.Which is why we have flashlights and IR cameras mounted on our helmets.Echolocation can be learned, just not applied in every low-light environment.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583817</id>
	<title>Wouldn't work for firefighters</title>
	<author>Anonymous</author>
	<datestamp>1246718580000</datestamp>
	<modclass>Insightful</modclass>
	<modscore>5</modscore>
	<htmltext><p>This would be utterly useless for firefighters as they all wear SCBA which requires a full face mask. Further more your ability to hear those clicks are again reduced by gear over your ears, radio chatter and the often very dense smoke around you soaks up large volumes of noise.</p><p>This would take serious adaptation to make it even remotely feasible for someone in that scenario.  If you're on a hose crew you can just outright forget it all together.</p></htmltext>
<tokenext>This would be utterly useless for firefighters as they all wear SCBA which requires a full face mask .
Further more your ability to hear those clicks are again reduced by gear over your ears , radio chatter and the often very dense smoke around you soaks up large volumes of noise.This would take serious adaptation to make it even remotely feasible for someone in that scenario .
If you 're on a hose crew you can just outright forget it all together .</tokentext>
<sentencetext>This would be utterly useless for firefighters as they all wear SCBA which requires a full face mask.
Further more your ability to hear those clicks are again reduced by gear over your ears, radio chatter and the often very dense smoke around you soaks up large volumes of noise.This would take serious adaptation to make it even remotely feasible for someone in that scenario.
If you're on a hose crew you can just outright forget it all together.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583699</id>
	<title>No duh</title>
	<author>Anonymous</author>
	<datestamp>1246716420000</datestamp>
	<modclass>Informativ</modclass>
	<modscore>1</modscore>
	<htmltext><p>I believe Ripley's Believe It or Not, the TV show, already did a story on people who could do this.</p></htmltext>
<tokenext>I believe Ripley 's Believe It or Not , the TV show , already did a story on people who could do this .</tokentext>
<sentencetext>I believe Ripley's Believe It or Not, the TV show, already did a story on people who could do this.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28590763</id>
	<title>Re:I am a firefighter</title>
	<author>Anonymous</author>
	<datestamp>1246813740000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>I can just imagine it... Several BA teams in a structural fire and everybody starts activating DSU's so they can find their way around in the dark. If only someody had thought of this before..</p><p>BTW what service is providing you with helmet TIC's? (Who are they made by? Are they reliable? Both eyes or one? Picture?)</p></htmltext>
<tokenext>I can just imagine it... Several BA teams in a structural fire and everybody starts activating DSU 's so they can find their way around in the dark .
If only someody had thought of this before..BTW what service is providing you with helmet TIC 's ?
( Who are they made by ?
Are they reliable ?
Both eyes or one ?
Picture ? )</tokentext>
<sentencetext>I can just imagine it... Several BA teams in a structural fire and everybody starts activating DSU's so they can find their way around in the dark.
If only someody had thought of this before..BTW what service is providing you with helmet TIC's?
(Who are they made by?
Are they reliable?
Both eyes or one?
Picture?)</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583803</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584821</id>
	<title>Chirping</title>
	<author>4D6963</author>
	<datestamp>1246736460000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>What about chirping instead of clicking? Clicking is good because it's short, but because it's short it's low powered, whereas if you chirp then you have more power coming out. I wonder how that'd work out for human echolocation too.</p></htmltext>
<tokenext>What about chirping instead of clicking ?
Clicking is good because it 's short , but because it 's short it 's low powered , whereas if you chirp then you have more power coming out .
I wonder how that 'd work out for human echolocation too .</tokentext>
<sentencetext>What about chirping instead of clicking?
Clicking is good because it's short, but because it's short it's low powered, whereas if you chirp then you have more power coming out.
I wonder how that'd work out for human echolocation too.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583759</id>
	<title>Re:No duh</title>
	<author>paleo2002</author>
	<datestamp>1246717320000</datestamp>
	<modclass>Informativ</modclass>
	<modscore>4</modscore>
	<htmltext>I remember seeing a story on Dateline or 20/20 a while back about several blind people who are already using this method of echolocation.  One of them, a young boy, taught himself to see with sound by listening to how a desktop fan changed sound when he spoke into it.  Now he can ride a bike around his neighborhood, navigate, avoid cars, etc.</htmltext>
<tokenext>I remember seeing a story on Dateline or 20/20 a while back about several blind people who are already using this method of echolocation .
One of them , a young boy , taught himself to see with sound by listening to how a desktop fan changed sound when he spoke into it .
Now he can ride a bike around his neighborhood , navigate , avoid cars , etc .</tokentext>
<sentencetext>I remember seeing a story on Dateline or 20/20 a while back about several blind people who are already using this method of echolocation.
One of them, a young boy, taught himself to see with sound by listening to how a desktop fan changed sound when he spoke into it.
Now he can ride a bike around his neighborhood, navigate, avoid cars, etc.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583699</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584399</id>
	<title>People Reading this Story</title>
	<author>muphin</author>
	<datestamp>1246727460000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>I wonder how many people started shhh'ing and hissing and clicking when they read this story, would've been funny when u walk past a cubicle and someone doing that<nobr> <wbr></nobr>:p<br> <br>
imagine when you have 10 people in a room doing that, how can u filter out that static?</htmltext>
<tokenext>I wonder how many people started shhh'ing and hissing and clicking when they read this story , would 've been funny when u walk past a cubicle and someone doing that : p imagine when you have 10 people in a room doing that , how can u filter out that static ?</tokentext>
<sentencetext>I wonder how many people started shhh'ing and hissing and clicking when they read this story, would've been funny when u walk past a cubicle and someone doing that :p 
imagine when you have 10 people in a room doing that, how can u filter out that static?</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584029</id>
	<title>Why not..</title>
	<author>Roskolnikov</author>
	<datestamp>1246722060000</datestamp>
	<modclass>Redundant</modclass>
	<modscore>0</modscore>
	<htmltext><p>Instead of relying on sound made from ones own mouth, why not rely on a simple emitter around your neck making the clicks for you?  sounds silly but resolution would become a problem pretty quick.</p><p>still, very cool.</p></htmltext>
<tokenext>Instead of relying on sound made from ones own mouth , why not rely on a simple emitter around your neck making the clicks for you ?
sounds silly but resolution would become a problem pretty quick.still , very cool .</tokentext>
<sentencetext>Instead of relying on sound made from ones own mouth, why not rely on a simple emitter around your neck making the clicks for you?
sounds silly but resolution would become a problem pretty quick.still, very cool.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584019</id>
	<title>Now we can answer the age old question ...</title>
	<author>Charles Dodgeson</author>
	<datestamp>1246721700000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><a href="http://www.consciousentities.com/bats.htm" title="consciousentities.com">What is it like to be a bat?</a> [consciousentities.com]

<p>Of course actually knowing the answer to the question itself may not help address the philosophical issues raised by the question.</p></htmltext>
<tokenext>What is it like to be a bat ?
[ consciousentities.com ] Of course actually knowing the answer to the question itself may not help address the philosophical issues raised by the question .</tokentext>
<sentencetext>What is it like to be a bat?
[consciousentities.com]

Of course actually knowing the answer to the question itself may not help address the philosophical issues raised by the question.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583793</id>
	<title>Finally!</title>
	<author>narcc</author>
	<datestamp>1246717980000</datestamp>
	<modclass>Funny</modclass>
	<modscore>5</modscore>
	<htmltext><p>This is exactly what I've been looking for:  Something <i>else</i> to do while I'm sitting alone in the dark.</p></htmltext>
<tokenext>This is exactly what I 've been looking for : Something else to do while I 'm sitting alone in the dark .</tokentext>
<sentencetext>This is exactly what I've been looking for:  Something else to do while I'm sitting alone in the dark.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28588205</id>
	<title>Re:Done that myself</title>
	<author>CAIMLAS</author>
	<datestamp>1246784820000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>I do this, too. In a familiar environment I've always been very good at pitch-dark navigation. It's immediately difficult after turning off the lights (seems it takes a moment or three for the brain to switch over), but I'll use the sounds of the creaking floor (and so on) for navigation.</p><p>When I was a teen I used to walk around in our basement in the dark. I didn't use a clicking or 'shh' sound, I used more of a guttural, deep grunt (a throat growl, if you will). I've got very high frequency sensitivity, so I don't know why I prefer the lower tone, but it works if you're not intimate with the area or have no other sound to tell you where you are.</p><p>In an average house, if you know the floor plan and there's an appliance on, it's pretty trivial to navigate by it (provided you know where the appliance is!)</p><p>It'd be really interesting to hone this technique to avoid small childrens' toys, though. That'd be really nice.</p></htmltext>
<tokenext>I do this , too .
In a familiar environment I 've always been very good at pitch-dark navigation .
It 's immediately difficult after turning off the lights ( seems it takes a moment or three for the brain to switch over ) , but I 'll use the sounds of the creaking floor ( and so on ) for navigation.When I was a teen I used to walk around in our basement in the dark .
I did n't use a clicking or 'shh ' sound , I used more of a guttural , deep grunt ( a throat growl , if you will ) .
I 've got very high frequency sensitivity , so I do n't know why I prefer the lower tone , but it works if you 're not intimate with the area or have no other sound to tell you where you are.In an average house , if you know the floor plan and there 's an appliance on , it 's pretty trivial to navigate by it ( provided you know where the appliance is !
) It 'd be really interesting to hone this technique to avoid small childrens ' toys , though .
That 'd be really nice .</tokentext>
<sentencetext>I do this, too.
In a familiar environment I've always been very good at pitch-dark navigation.
It's immediately difficult after turning off the lights (seems it takes a moment or three for the brain to switch over), but I'll use the sounds of the creaking floor (and so on) for navigation.When I was a teen I used to walk around in our basement in the dark.
I didn't use a clicking or 'shh' sound, I used more of a guttural, deep grunt (a throat growl, if you will).
I've got very high frequency sensitivity, so I don't know why I prefer the lower tone, but it works if you're not intimate with the area or have no other sound to tell you where you are.In an average house, if you know the floor plan and there's an appliance on, it's pretty trivial to navigate by it (provided you know where the appliance is!
)It'd be really interesting to hone this technique to avoid small childrens' toys, though.
That'd be really nice.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583813</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583903</id>
	<title>Re:Have to be a daredevil to be successful at this</title>
	<author>rdnetto</author>
	<datestamp>1246720020000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p><div class="quote"><p> radioactive cylinder</p></div><p>Actually, it was a cylinder of biological waste.</p></div>
	</htmltext>
<tokenext>radioactive cylinderActually , it was a cylinder of biological waste .</tokentext>
<sentencetext> radioactive cylinderActually, it was a cylinder of biological waste.
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583775</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584151</id>
	<title>Re:I am a firefighter</title>
	<author>Anonymous</author>
	<datestamp>1246724040000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>On top of what Anonymous Coward has said above, I can't see how this would be particularly useful when we're required, in any smoky situations we're required to wear a face piece, thus inhibiting the sound's ability to travel to the desired location.</p><p>But I'm sure it would be useful if we get lost in our masks.</p></htmltext>
<tokenext>On top of what Anonymous Coward has said above , I ca n't see how this would be particularly useful when we 're required , in any smoky situations we 're required to wear a face piece , thus inhibiting the sound 's ability to travel to the desired location.But I 'm sure it would be useful if we get lost in our masks .</tokentext>
<sentencetext>On top of what Anonymous Coward has said above, I can't see how this would be particularly useful when we're required, in any smoky situations we're required to wear a face piece, thus inhibiting the sound's ability to travel to the desired location.But I'm sure it would be useful if we get lost in our masks.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583803</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28595367</id>
	<title>I've been doing this for as long as I can remember</title>
	<author>Anonymous</author>
	<datestamp>1246899660000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>I'm unusually sensitive to white noise, and I can hear the echo of the noise off of the walls and use it to help me move around in a dark house. Wide open spaces sound tinnier somehow, while a wall muffles the noise.</p></htmltext>
<tokenext>I 'm unusually sensitive to white noise , and I can hear the echo of the noise off of the walls and use it to help me move around in a dark house .
Wide open spaces sound tinnier somehow , while a wall muffles the noise .</tokentext>
<sentencetext>I'm unusually sensitive to white noise, and I can hear the echo of the noise off of the walls and use it to help me move around in a dark house.
Wide open spaces sound tinnier somehow, while a wall muffles the noise.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584893</id>
	<title>superpowers</title>
	<author>Anonymous</author>
	<datestamp>1246824060000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p><div class="quote"><p>You too can have superpowers but there is a sacrifice to be made. You must avoid Windows.</p></div><p>Is that you, Steve Jobs?</p></div>
	</htmltext>
<tokenext>You too can have superpowers but there is a sacrifice to be made .
You must avoid Windows.Is that you , Steve Jobs ?</tokentext>
<sentencetext>You too can have superpowers but there is a sacrifice to be made.
You must avoid Windows.Is that you, Steve Jobs?
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583775</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583777</id>
	<title>Re:No duh</title>
	<author>Anonymous</author>
	<datestamp>1246717560000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>It's going to be real fucking useful on the internet. This is an idea whose time has come and gone.</p></htmltext>
<tokenext>It 's going to be real fucking useful on the internet .
This is an idea whose time has come and gone .</tokentext>
<sentencetext>It's going to be real fucking useful on the internet.
This is an idea whose time has come and gone.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583699</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28585829</id>
	<title>Re:Wouldn't work for firefighters</title>
	<author>X0563511</author>
	<datestamp>1246800780000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>If you are going to go that far, it makes much more sense to just put a damned <a href="http://images.google.com/images?q=FLIR&amp;oe=utf-8&amp;rls=org.mozilla:en-US:official&amp;client=firefox-a&amp;um=1&amp;ie=UTF-8&amp;sa=N&amp;hl=en&amp;tab=wi" title="google.com">IR camera</a> [google.com] on there.</p></htmltext>
<tokenext>If you are going to go that far , it makes much more sense to just put a damned IR camera [ google.com ] on there .</tokentext>
<sentencetext>If you are going to go that far, it makes much more sense to just put a damned IR camera [google.com] on there.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584805</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584037</id>
	<title>Re:Done that myself</title>
	<author>Anonymous</author>
	<datestamp>1246722240000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>"The picture we get from such a technique is no picture at all. To create a picture, we would need a dense array of ears of great sensitivity not unlike a retina."</p><p>You just need to turn your head.</p><p>We have a strong awareness of the angle and attitude of our ears while listening.</p><p>Try to locate a source of a sound and you will perform a scanning motion with your head to gather information from a number of slightly different attitudes. People do this naturally.</p><p>We also use reflections within the outer ear to analyse phase information and spatially locate where a sound is coming from.</p><p>As most people do this automatically, you don't even notice you are doing it.</p></htmltext>
<tokenext>" The picture we get from such a technique is no picture at all .
To create a picture , we would need a dense array of ears of great sensitivity not unlike a retina .
" You just need to turn your head.We have a strong awareness of the angle and attitude of our ears while listening.Try to locate a source of a sound and you will perform a scanning motion with your head to gather information from a number of slightly different attitudes .
People do this naturally.We also use reflections within the outer ear to analyse phase information and spatially locate where a sound is coming from.As most people do this automatically , you do n't even notice you are doing it .</tokentext>
<sentencetext>"The picture we get from such a technique is no picture at all.
To create a picture, we would need a dense array of ears of great sensitivity not unlike a retina.
"You just need to turn your head.We have a strong awareness of the angle and attitude of our ears while listening.Try to locate a source of a sound and you will perform a scanning motion with your head to gather information from a number of slightly different attitudes.
People do this naturally.We also use reflections within the outer ear to analyse phase information and spatially locate where a sound is coming from.As most people do this automatically, you don't even notice you are doing it.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583813</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583735</id>
	<title>Date?</title>
	<author>flyonthewall</author>
	<datestamp>1246716900000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>Shook head, looked at calendar....</p><p>Nope. Wrong date...</p><p>Got to be true!</p><p>.</p></htmltext>
<tokenext>Shook head , looked at calendar....Nope .
Wrong date...Got to be true ! .</tokentext>
<sentencetext>Shook head, looked at calendar....Nope.
Wrong date...Got to be true!.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28586581</id>
	<title>Mountain guide</title>
	<author>dargaud</author>
	<datestamp>1246812060000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>I'm a <a href="http://www.gdargaud.net/Climbing/" title="gdargaud.net">climber</a> [gdargaud.net] and I can relate this story of a mountain guide I know who used a whistle to navigate on a glacier while in a full whiteout. He knew more or less the topography of the cliffs nearby and would blow short whistles, time the echo and estimate the distance to the various cliffs while continuing to walk with his clients. It was in the time before the GPSes, but those aren't very accurate on mountains anyway.</htmltext>
<tokenext>I 'm a climber [ gdargaud.net ] and I can relate this story of a mountain guide I know who used a whistle to navigate on a glacier while in a full whiteout .
He knew more or less the topography of the cliffs nearby and would blow short whistles , time the echo and estimate the distance to the various cliffs while continuing to walk with his clients .
It was in the time before the GPSes , but those are n't very accurate on mountains anyway .</tokentext>
<sentencetext>I'm a climber [gdargaud.net] and I can relate this story of a mountain guide I know who used a whistle to navigate on a glacier while in a full whiteout.
He knew more or less the topography of the cliffs nearby and would blow short whistles, time the echo and estimate the distance to the various cliffs while continuing to walk with his clients.
It was in the time before the GPSes, but those aren't very accurate on mountains anyway.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583711</id>
	<title>innate?</title>
	<author>Anonymous</author>
	<datestamp>1246716540000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>2</modscore>
	<htmltext><p>I noticed I unconsciouly tongue-click when looking for stuff. Shrug.</p><p>"Now where did I put it &lt;click&gt; &lt;click&gt; &lt;click&gt;"</p></htmltext>
<tokenext>I noticed I unconsciouly tongue-click when looking for stuff .
Shrug. " Now where did I put it "</tokentext>
<sentencetext>I noticed I unconsciouly tongue-click when looking for stuff.
Shrug."Now where did I put it   "</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28585213</id>
	<title>Re:Wouldn't work for firefighters</title>
	<author>Opportunist</author>
	<datestamp>1246787700000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>I'd go for a technical solution. An emitter for ultrasonic sound, a receiver, a computer to visualize it and a display to show it. Sounds more useful.</p><p>Provided you want to haul that thing around in a situation where you're already lugging half a ton of other stuff around, of course.</p></htmltext>
<tokenext>I 'd go for a technical solution .
An emitter for ultrasonic sound , a receiver , a computer to visualize it and a display to show it .
Sounds more useful.Provided you want to haul that thing around in a situation where you 're already lugging half a ton of other stuff around , of course .</tokentext>
<sentencetext>I'd go for a technical solution.
An emitter for ultrasonic sound, a receiver, a computer to visualize it and a display to show it.
Sounds more useful.Provided you want to haul that thing around in a situation where you're already lugging half a ton of other stuff around, of course.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583817</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28588061</id>
	<title>Re:Have to be a daredevil to be successful at this</title>
	<author>Anonymous</author>
	<datestamp>1246826820000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>I always knew there was something fishy about Stallman.</p></htmltext>
<tokenext>I always knew there was something fishy about Stallman .</tokentext>
<sentencetext>I always knew there was something fishy about Stallman.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583775</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28586907</id>
	<title>Re:Have to be a daredevil to be successful at this</title>
	<author>bigsexyjoe</author>
	<datestamp>1246816080000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>He uses his sonar to make up for lack of site. Therefore, he echolocates just like Ben Underwood.</htmltext>
<tokenext>He uses his sonar to make up for lack of site .
Therefore , he echolocates just like Ben Underwood .</tokentext>
<sentencetext>He uses his sonar to make up for lack of site.
Therefore, he echolocates just like Ben Underwood.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583775</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28586107</id>
	<title>Re:It's a good thing my dog wasn't nearby...</title>
	<author>maxume</author>
	<datestamp>1246805460000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>At least she doesn't start barking when she thinks there may be someone within a quarter mile of your house. I was walking a gravel road yesterday and some damn dog barked itself out of breath, as apparently I was a threat. Stupid owner.</p></htmltext>
<tokenext>At least she does n't start barking when she thinks there may be someone within a quarter mile of your house .
I was walking a gravel road yesterday and some damn dog barked itself out of breath , as apparently I was a threat .
Stupid owner .</tokentext>
<sentencetext>At least she doesn't start barking when she thinks there may be someone within a quarter mile of your house.
I was walking a gravel road yesterday and some damn dog barked itself out of breath, as apparently I was a threat.
Stupid owner.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583811</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583813</id>
	<title>Done that myself</title>
	<author>Anonymous</author>
	<datestamp>1246718460000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>4</modscore>
	<htmltext><p>While I am not sure I could pull off flying at night, I know I could easily use it to avoid walking into walls at night... I've done it.  It's far from a big deal.  The method of sound generation I used was snapping my fingers, though, and not clicking my mouth which I think would confuse my ears even more since my mouth is connected to my ears.  But repeatedly snapping my fingers around my head while stepping forward allowed me to appreciate the changes in acoustics well enough to know where walls and other large objects were.  On the other hand, it's not quite good enough to avoid stepping on toys left out by my two year old.</p><p>The picture we get from such a technique is no picture at all.  To create a picture, we would need a dense array of ears of great sensitivity not unlike a retina.  At best you can sense that something is there and perhaps how solid it may be.  After all, a curtain would mask echoes while walls do a nice job of bouncing the signals.</p><p>Still, I am quite certain that blind people already do this without thinking about it.  While they may not intentionally send out "pings" in the form of clicks or snaps, they quite likely hear other signals such as the brush of their feet on the carpet, the knock of their feet on the floor or even the rustling of their clothes or the sound of the air flowing from the HVAC system.  All of these things generate enough noise signal the allow the notice of the change of acoustic feedback as one to detect changes in the surroundings.</p></htmltext>
<tokenext>While I am not sure I could pull off flying at night , I know I could easily use it to avoid walking into walls at night... I 've done it .
It 's far from a big deal .
The method of sound generation I used was snapping my fingers , though , and not clicking my mouth which I think would confuse my ears even more since my mouth is connected to my ears .
But repeatedly snapping my fingers around my head while stepping forward allowed me to appreciate the changes in acoustics well enough to know where walls and other large objects were .
On the other hand , it 's not quite good enough to avoid stepping on toys left out by my two year old.The picture we get from such a technique is no picture at all .
To create a picture , we would need a dense array of ears of great sensitivity not unlike a retina .
At best you can sense that something is there and perhaps how solid it may be .
After all , a curtain would mask echoes while walls do a nice job of bouncing the signals.Still , I am quite certain that blind people already do this without thinking about it .
While they may not intentionally send out " pings " in the form of clicks or snaps , they quite likely hear other signals such as the brush of their feet on the carpet , the knock of their feet on the floor or even the rustling of their clothes or the sound of the air flowing from the HVAC system .
All of these things generate enough noise signal the allow the notice of the change of acoustic feedback as one to detect changes in the surroundings .</tokentext>
<sentencetext>While I am not sure I could pull off flying at night, I know I could easily use it to avoid walking into walls at night... I've done it.
It's far from a big deal.
The method of sound generation I used was snapping my fingers, though, and not clicking my mouth which I think would confuse my ears even more since my mouth is connected to my ears.
But repeatedly snapping my fingers around my head while stepping forward allowed me to appreciate the changes in acoustics well enough to know where walls and other large objects were.
On the other hand, it's not quite good enough to avoid stepping on toys left out by my two year old.The picture we get from such a technique is no picture at all.
To create a picture, we would need a dense array of ears of great sensitivity not unlike a retina.
At best you can sense that something is there and perhaps how solid it may be.
After all, a curtain would mask echoes while walls do a nice job of bouncing the signals.Still, I am quite certain that blind people already do this without thinking about it.
While they may not intentionally send out "pings" in the form of clicks or snaps, they quite likely hear other signals such as the brush of their feet on the carpet, the knock of their feet on the floor or even the rustling of their clothes or the sound of the air flowing from the HVAC system.
All of these things generate enough noise signal the allow the notice of the change of acoustic feedback as one to detect changes in the surroundings.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28586187</id>
	<title>Old News</title>
	<author>Anonymous</author>
	<datestamp>1246806600000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p><a href="http://www.benunderwood.com/echolocation.html" title="benunderwood.com" rel="nofollow"> Ben Underwood</a> [benunderwood.com] did it.</p></htmltext>
<tokenext>Ben Underwood [ benunderwood.com ] did it .</tokentext>
<sentencetext> Ben Underwood [benunderwood.com] did it.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583799</id>
	<title>Catburglars?</title>
	<author>Anonymous</author>
	<datestamp>1246718100000</datestamp>
	<modclass>Funny</modclass>
	<modscore>4</modscore>
	<htmltext><p>Yes, sneaking around the dark house at night screaming at the walls to find your way around.  The epitome of stealth!</p></htmltext>
<tokenext>Yes , sneaking around the dark house at night screaming at the walls to find your way around .
The epitome of stealth !</tokentext>
<sentencetext>Yes, sneaking around the dark house at night screaming at the walls to find your way around.
The epitome of stealth!</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583775</id>
	<title>Have to be a daredevil to be successful at this</title>
	<author>Anonymous</author>
	<datestamp>1246717560000</datestamp>
	<modclass>Funny</modclass>
	<modscore>5</modscore>
	<htmltext>Before the unfortunate accident where I was blinded by a radioactive cylinder that fell off a truck, I could not echolocate. But now I am a successful lawyer by day and a blind but superpowered crimefighter by night. You too can have superpowers but there is a sacrifice to be made. You must avoid Windows.</htmltext>
<tokenext>Before the unfortunate accident where I was blinded by a radioactive cylinder that fell off a truck , I could not echolocate .
But now I am a successful lawyer by day and a blind but superpowered crimefighter by night .
You too can have superpowers but there is a sacrifice to be made .
You must avoid Windows .</tokentext>
<sentencetext>Before the unfortunate accident where I was blinded by a radioactive cylinder that fell off a truck, I could not echolocate.
But now I am a successful lawyer by day and a blind but superpowered crimefighter by night.
You too can have superpowers but there is a sacrifice to be made.
You must avoid Windows.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584059</id>
	<title>I was trying...</title>
	<author>Anonymous</author>
	<datestamp>1246722660000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>read Slashdot on LCD by using Echolocation....never success yet, and found that listen to the RSS clip read aloud by the robotic overload works much better.</p></htmltext>
<tokenext>read Slashdot on LCD by using Echolocation....never success yet , and found that listen to the RSS clip read aloud by the robotic overload works much better .</tokentext>
<sentencetext>read Slashdot on LCD by using Echolocation....never success yet, and found that listen to the RSS clip read aloud by the robotic overload works much better.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584013</id>
	<title>Ben Underwood</title>
	<author>Anonymous</author>
	<datestamp>1246721580000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>1</modscore>
	<htmltext><p>Who was blind had a documentary about him (before he passed,MHRIP) called</p><p><a href="http://www.youtube.com/watch?v=qLziFMF4DHA&amp;feature=PlayList&amp;p=592CDDA86A113C68&amp;index=0&amp;playnext=1" title="youtube.com" rel="nofollow">Extraordinary People - The boy who sees without eyes</a> [youtube.com]</p><p>truly amazing, but then is it ? he learned this from an early age and didnt think it was anything special same as most of us take seeing light reflected off objects for granted</p><p>Iam more in awe of programmers who are blind (like <a href="http://www.gamesfortheblind.com/" title="gamesfortheblind.com" rel="nofollow">this guy</a> [gamesfortheblind.com], now that takes a special kind of mind.</p></htmltext>
<tokenext>Who was blind had a documentary about him ( before he passed,MHRIP ) calledExtraordinary People - The boy who sees without eyes [ youtube.com ] truly amazing , but then is it ?
he learned this from an early age and didnt think it was anything special same as most of us take seeing light reflected off objects for grantedIam more in awe of programmers who are blind ( like this guy [ gamesfortheblind.com ] , now that takes a special kind of mind .</tokentext>
<sentencetext>Who was blind had a documentary about him (before he passed,MHRIP) calledExtraordinary People - The boy who sees without eyes [youtube.com]truly amazing, but then is it ?
he learned this from an early age and didnt think it was anything special same as most of us take seeing light reflected off objects for grantedIam more in awe of programmers who are blind (like this guy [gamesfortheblind.com], now that takes a special kind of mind.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583751</id>
	<title>Momma's milk</title>
	<author>Anonymous</author>
	<datestamp>1246717260000</datestamp>
	<modclass>Offtopic</modclass>
	<modscore>-1</modscore>
	<htmltext>I've noticed babies clicking their tongues when blindly looking for a titty. Nom nom nom nom. Ok, maybe it's not echolocation. But nom nom nom nom!</htmltext>
<tokenext>I 've noticed babies clicking their tongues when blindly looking for a titty .
Nom nom nom nom .
Ok , maybe it 's not echolocation .
But nom nom nom nom !</tokentext>
<sentencetext>I've noticed babies clicking their tongues when blindly looking for a titty.
Nom nom nom nom.
Ok, maybe it's not echolocation.
But nom nom nom nom!</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28586349</id>
	<title>Re:Done that myself</title>
	<author>jeffb (2.718)</author>
	<datestamp>1246809120000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p><div class="quote"><p>The picture we get from such a technique is no picture at all.  To create a picture, we would need a dense array of ears of great sensitivity not unlike a retina.</p></div><p>As I understand it, the picture we get from such a technique is <i>exactly</i> a picture -- it's formulated in the same areas of our brain, and subject to the same mental operations.  As others have pointed out, we get a <i>lot</i> more information from our ears than we would get from two single-pixel image sensors.  (Think about how you can tell, from a pair of receptors at opposite <i>sides</i> of your head, whether a sound is coming from ahead or behind, above or below.)</p></div>
	</htmltext>
<tokenext>The picture we get from such a technique is no picture at all .
To create a picture , we would need a dense array of ears of great sensitivity not unlike a retina.As I understand it , the picture we get from such a technique is exactly a picture -- it 's formulated in the same areas of our brain , and subject to the same mental operations .
As others have pointed out , we get a lot more information from our ears than we would get from two single-pixel image sensors .
( Think about how you can tell , from a pair of receptors at opposite sides of your head , whether a sound is coming from ahead or behind , above or below .
)</tokentext>
<sentencetext>The picture we get from such a technique is no picture at all.
To create a picture, we would need a dense array of ears of great sensitivity not unlike a retina.As I understand it, the picture we get from such a technique is exactly a picture -- it's formulated in the same areas of our brain, and subject to the same mental operations.
As others have pointed out, we get a lot more information from our ears than we would get from two single-pixel image sensors.
(Think about how you can tell, from a pair of receptors at opposite sides of your head, whether a sound is coming from ahead or behind, above or below.
)
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583813</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28585179</id>
	<title>Re:Done that myself</title>
	<author>JCZwart</author>
	<datestamp>1246787100000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><a href="http://www.youtube.com/watch?v=uobuBc2GO0o" title="youtube.com" rel="nofollow">This</a> [youtube.com] (small) documentary about Daniel Kish, a blind person using echolocation, suggests these blind people use this technique in a quite advanced manner. See the 'test' they perform on one of the blind people featured in the film, at about 4:20. Sounds like he's able to hear much, much more than just some surroundings. At the end, they even go out mountainbiking.<br>
<br>
If ever I should become blind, I'd surely investigate in this technique.</htmltext>
<tokenext>This [ youtube.com ] ( small ) documentary about Daniel Kish , a blind person using echolocation , suggests these blind people use this technique in a quite advanced manner .
See the 'test ' they perform on one of the blind people featured in the film , at about 4 : 20 .
Sounds like he 's able to hear much , much more than just some surroundings .
At the end , they even go out mountainbiking .
If ever I should become blind , I 'd surely investigate in this technique .</tokentext>
<sentencetext>This [youtube.com] (small) documentary about Daniel Kish, a blind person using echolocation, suggests these blind people use this technique in a quite advanced manner.
See the 'test' they perform on one of the blind people featured in the film, at about 4:20.
Sounds like he's able to hear much, much more than just some surroundings.
At the end, they even go out mountainbiking.
If ever I should become blind, I'd surely investigate in this technique.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583813</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583995</id>
	<title>BBC documentary with blind young man...</title>
	<author>Anonymous</author>
	<datestamp>1246721400000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>I clearly remember watching a BBC documentary about a blind young man who would do 'palate clicks' - he could discern cars and rubbish bins and other obstacles and preferred it instead of his stick.</p><p>Science Daily mentions 'trial and error' that others have used to make it work for them: http://www.sciencedaily.com/releases/2009/06/090630075445.htm</p></htmltext>
<tokenext>I clearly remember watching a BBC documentary about a blind young man who would do 'palate clicks ' - he could discern cars and rubbish bins and other obstacles and preferred it instead of his stick.Science Daily mentions 'trial and error ' that others have used to make it work for them : http : //www.sciencedaily.com/releases/2009/06/090630075445.htm</tokentext>
<sentencetext>I clearly remember watching a BBC documentary about a blind young man who would do 'palate clicks' - he could discern cars and rubbish bins and other obstacles and preferred it instead of his stick.Science Daily mentions 'trial and error' that others have used to make it work for them: http://www.sciencedaily.com/releases/2009/06/090630075445.htm</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583769</id>
	<title>Re:Dubious</title>
	<author>Anonymous</author>
	<datestamp>1246717440000</datestamp>
	<modclass>Insightful</modclass>
	<modscore>2</modscore>
	<htmltext><p>I'm saddened by your narrow world-view. You honestly do not think it's possible to fine-tune your brain to automatically discern variances in reflected sounds, in much the same way that it has been doing it for thousands of years?</p><p>I thought this 'story' was sensationalist as it was kind of <em>obvious</em> to me. Thus I was <em>very</em> surprised to find your post.</p></htmltext>
<tokenext>I 'm saddened by your narrow world-view .
You honestly do not think it 's possible to fine-tune your brain to automatically discern variances in reflected sounds , in much the same way that it has been doing it for thousands of years ? I thought this 'story ' was sensationalist as it was kind of obvious to me .
Thus I was very surprised to find your post .</tokentext>
<sentencetext>I'm saddened by your narrow world-view.
You honestly do not think it's possible to fine-tune your brain to automatically discern variances in reflected sounds, in much the same way that it has been doing it for thousands of years?I thought this 'story' was sensationalist as it was kind of obvious to me.
Thus I was very surprised to find your post.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583709</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584307</id>
	<title>Re:No duh</title>
	<author>Anonymous</author>
	<datestamp>1246726140000</datestamp>
	<modclass>Informativ</modclass>
	<modscore>2</modscore>
	<htmltext><p>I'm not sure if this is the boy you're referring to, but <a href="http://www.youtube.com/watch?v=qLziFMF4DHA" title="youtube.com">here</a> [youtube.com] is a documentary about a young boy named <a href="http://en.wikipedia.org/wiki/Ben\_Underwood#Ben\_Underwood" title="wikipedia.org">Ben Underwood</a> [wikipedia.org] who is blind and has taught himself <a href="http://en.wikipedia.org/wiki/Human\_echolocation" title="wikipedia.org">echo location</a> [wikipedia.org]. It is pretty amazing.</p></htmltext>
<tokenext>I 'm not sure if this is the boy you 're referring to , but here [ youtube.com ] is a documentary about a young boy named Ben Underwood [ wikipedia.org ] who is blind and has taught himself echo location [ wikipedia.org ] .
It is pretty amazing .</tokentext>
<sentencetext>I'm not sure if this is the boy you're referring to, but here [youtube.com] is a documentary about a young boy named Ben Underwood [wikipedia.org] who is blind and has taught himself echo location [wikipedia.org].
It is pretty amazing.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583759</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584805</id>
	<title>Re:Wouldn't work for firefighters</title>
	<author>ti-coune</author>
	<datestamp>1246736160000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>well, how about if the sounds are emitted from a small speaker on the person's chest or helmet and the echo captured by an array of small microphones on the same place. Then a microcomputer translates these echoes back into audible sounds in earphones. Im sure someone could learn to "see" these signals.

just a thought...</htmltext>
<tokenext>well , how about if the sounds are emitted from a small speaker on the person 's chest or helmet and the echo captured by an array of small microphones on the same place .
Then a microcomputer translates these echoes back into audible sounds in earphones .
Im sure someone could learn to " see " these signals .
just a thought.. .</tokentext>
<sentencetext>well, how about if the sounds are emitted from a small speaker on the person's chest or helmet and the echo captured by an array of small microphones on the same place.
Then a microcomputer translates these echoes back into audible sounds in earphones.
Im sure someone could learn to "see" these signals.
just a thought...</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583817</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584055</id>
	<title>Dyslexic title</title>
	<author>Anonymous</author>
	<datestamp>1246722660000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>Did anyone else read the headline as '<i>chocolate</i>ion? Mmmm, chocolate ion!
<br> <br>Why can't we have more "Stuff That Matters" articles on chocolate?<nobr> <wbr></nobr>:)</htmltext>
<tokenext>Did anyone else read the headline as 'chocolateion ?
Mmmm , chocolate ion !
Why ca n't we have more " Stuff That Matters " articles on chocolate ?
: )</tokentext>
<sentencetext>Did anyone else read the headline as 'chocolateion?
Mmmm, chocolate ion!
Why can't we have more "Stuff That Matters" articles on chocolate?
:)</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28596769</id>
	<title>Old news</title>
	<author>EkriirkE</author>
	<datestamp>1246905420000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>I remember watching a show on discovery about this many years ago, they'd have special clickers in their hand that sound like a bottle cap with the tampering pop up depressed.  They showed off blind people walking without poles, identifying object around them.  And some people riding bikes too!  Even a live demonstration of a man who has never used the method before navigating an unfamiliar room just be clicks.</htmltext>
<tokenext>I remember watching a show on discovery about this many years ago , they 'd have special clickers in their hand that sound like a bottle cap with the tampering pop up depressed .
They showed off blind people walking without poles , identifying object around them .
And some people riding bikes too !
Even a live demonstration of a man who has never used the method before navigating an unfamiliar room just be clicks .</tokentext>
<sentencetext>I remember watching a show on discovery about this many years ago, they'd have special clickers in their hand that sound like a bottle cap with the tampering pop up depressed.
They showed off blind people walking without poles, identifying object around them.
And some people riding bikes too!
Even a live demonstration of a man who has never used the method before navigating an unfamiliar room just be clicks.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584541</id>
	<title>Echo-location?  How about fins?</title>
	<author>ring-eldest</author>
	<datestamp>1246730520000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>It's easy.  All it takes is a few hundred thousand years and some careful breeding programs.</htmltext>
<tokenext>It 's easy .
All it takes is a few hundred thousand years and some careful breeding programs .</tokentext>
<sentencetext>It's easy.
All it takes is a few hundred thousand years and some careful breeding programs.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583811</id>
	<title>It's a good thing my dog wasn't nearby...</title>
	<author>Anonymous</author>
	<datestamp>1246718460000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>2</modscore>
	<htmltext>... or he would echolocate the dog, and nothing else. When she hears "ssh" noises, she starts barking defensively to scare off intruders. (The hissy reptilian character of "ssh" probably doesn't help in general.)
<br> <br>
So if I had anything to add here, it would be: if it's possible at all that You, Too, Can Learn Echolocation, it's certainly not going to be possible within earshot of my stupid dog.</htmltext>
<tokenext>... or he would echolocate the dog , and nothing else .
When she hears " ssh " noises , she starts barking defensively to scare off intruders .
( The hissy reptilian character of " ssh " probably does n't help in general .
) So if I had anything to add here , it would be : if it 's possible at all that You , Too , Can Learn Echolocation , it 's certainly not going to be possible within earshot of my stupid dog .</tokentext>
<sentencetext>... or he would echolocate the dog, and nothing else.
When she hears "ssh" noises, she starts barking defensively to scare off intruders.
(The hissy reptilian character of "ssh" probably doesn't help in general.
)
 
So if I had anything to add here, it would be: if it's possible at all that You, Too, Can Learn Echolocation, it's certainly not going to be possible within earshot of my stupid dog.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584455</id>
	<title>Re:Have to be a daredevil to be successful at this</title>
	<author>Walt Dismal</author>
	<datestamp>1246728480000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>No, in the original comic - which I own, so let's not dispute this - a radioactive cylinder fell off a truck, hit Matt as a kid and that was the origin story.</htmltext>
<tokenext>No , in the original comic - which I own , so let 's not dispute this - a radioactive cylinder fell off a truck , hit Matt as a kid and that was the origin story .</tokentext>
<sentencetext>No, in the original comic - which I own, so let's not dispute this - a radioactive cylinder fell off a truck, hit Matt as a kid and that was the origin story.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583903</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28587021</id>
	<title>Marco...</title>
	<author>Anonymous</author>
	<datestamp>1246817040000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>Polo</p></htmltext>
<tokenext>Polo</tokentext>
<sentencetext>Polo</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584531</id>
	<title>Re:Done that myself</title>
	<author>quercus.aeternam</author>
	<datestamp>1246730340000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>Back in the 70s or 80s, there was a study published by the Scientific American investigating the source of the ability that had developed in some blind to perceive the locations of objects, or at least get an idea of their environment.  The subjects themselves had many thoughts about the source of their abilities, some describing it as a pressure they felt on their forehead, but all lost their rudimentary abilities when their ears were covered.</p><p>My parents have a copy of the study, but unfortunately, I do not, and am unable to find the article on google.</p></htmltext>
<tokenext>Back in the 70s or 80s , there was a study published by the Scientific American investigating the source of the ability that had developed in some blind to perceive the locations of objects , or at least get an idea of their environment .
The subjects themselves had many thoughts about the source of their abilities , some describing it as a pressure they felt on their forehead , but all lost their rudimentary abilities when their ears were covered.My parents have a copy of the study , but unfortunately , I do not , and am unable to find the article on google .</tokentext>
<sentencetext>Back in the 70s or 80s, there was a study published by the Scientific American investigating the source of the ability that had developed in some blind to perceive the locations of objects, or at least get an idea of their environment.
The subjects themselves had many thoughts about the source of their abilities, some describing it as a pressure they felt on their forehead, but all lost their rudimentary abilities when their ears were covered.My parents have a copy of the study, but unfortunately, I do not, and am unable to find the article on google.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583813</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28594983</id>
	<title>Re:I am a firefighter</title>
	<author>JshWright</author>
	<datestamp>1246897920000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>I disagree. Certainly the 'resolution' isn't as high, given the level of ambient noise and the muffling of your voice caused by the facepiece, but it's still useful. A quick shout can give you a pretty good impression of the size of the room you're in, and any immediate obstacles. Paying attention to sounds (of both the passive and active origin) is a very important aspect of situational awareness in low visibility situations.<br>
<br>
Of course, life may be different for you water boys on the end of a hoseline.<nobr> <wbr></nobr>:p<br>
<br>
~JW<br>
Manlius FD, 32 Truck</htmltext>
<tokenext>I disagree .
Certainly the 'resolution ' is n't as high , given the level of ambient noise and the muffling of your voice caused by the facepiece , but it 's still useful .
A quick shout can give you a pretty good impression of the size of the room you 're in , and any immediate obstacles .
Paying attention to sounds ( of both the passive and active origin ) is a very important aspect of situational awareness in low visibility situations .
Of course , life may be different for you water boys on the end of a hoseline .
: p ~ JW Manlius FD , 32 Truck</tokentext>
<sentencetext>I disagree.
Certainly the 'resolution' isn't as high, given the level of ambient noise and the muffling of your voice caused by the facepiece, but it's still useful.
A quick shout can give you a pretty good impression of the size of the room you're in, and any immediate obstacles.
Paying attention to sounds (of both the passive and active origin) is a very important aspect of situational awareness in low visibility situations.
Of course, life may be different for you water boys on the end of a hoseline.
:p

~JW
Manlius FD, 32 Truck</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583803</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28586375</id>
	<title>Re:No duh</title>
	<author>SEWilco</author>
	<datestamp>1246809720000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>It's useful for dodging trolls.<br>
<i>click click shhh snap</i></htmltext>
<tokenext>It 's useful for dodging trolls .
click click shhh snap</tokentext>
<sentencetext>It's useful for dodging trolls.
click click shhh snap</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583777</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583709</id>
	<title>Dubious</title>
	<author>Anonymous</author>
	<datestamp>1246716540000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>This seems extremely unlikely, and most probably pseudoscience.</p></htmltext>
<tokenext>This seems extremely unlikely , and most probably pseudoscience .</tokentext>
<sentencetext>This seems extremely unlikely, and most probably pseudoscience.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28587039</id>
	<title>Re:Finally!</title>
	<author>Anonymous</author>
	<datestamp>1246817280000</datestamp>
	<modclass>Funny</modclass>
	<modscore>1</modscore>
	<htmltext><p>Great, now you might be able to tell which direction the grue is coming from.</p></htmltext>
<tokenext>Great , now you might be able to tell which direction the grue is coming from .</tokentext>
<sentencetext>Great, now you might be able to tell which direction the grue is coming from.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583793</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583867</id>
	<title>Blind Wille McTell</title>
	<author>LD HL,4000h</author>
	<datestamp>1246719600000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>2</modscore>
	<htmltext>I remember reading a while ago that Delta Blues musician <a href="http://en.wikipedia.org/wiki/Blind\_willie\_mctell" title="wikipedia.org" rel="nofollow"> Blind Willie McTell</a> [wikipedia.org] could do this, I always assumed that it was just another weird blues legend, but I'm absolutely stunned to find that it might have been true.<br> Maybe Robert Johnson really did sell his soul to the Devil.</htmltext>
<tokenext>I remember reading a while ago that Delta Blues musician Blind Willie McTell [ wikipedia.org ] could do this , I always assumed that it was just another weird blues legend , but I 'm absolutely stunned to find that it might have been true .
Maybe Robert Johnson really did sell his soul to the Devil .</tokentext>
<sentencetext>I remember reading a while ago that Delta Blues musician  Blind Willie McTell [wikipedia.org] could do this, I always assumed that it was just another weird blues legend, but I'm absolutely stunned to find that it might have been true.
Maybe Robert Johnson really did sell his soul to the Devil.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583899</id>
	<title>Re:Dubious</title>
	<author>unlametheweak</author>
	<datestamp>1246719960000</datestamp>
	<modclass>Funny</modclass>
	<modscore>2</modscore>
	<htmltext><p><div class="quote"><p>This seems extremely unlikely, and most probably pseudoscience.</p></div><p>It's no pseudo-science. Unfortunately they leave out some facts, like the fact that it only works for people who are born with antennae.</p></div>
	</htmltext>
<tokenext>This seems extremely unlikely , and most probably pseudoscience.It 's no pseudo-science .
Unfortunately they leave out some facts , like the fact that it only works for people who are born with antennae .</tokentext>
<sentencetext>This seems extremely unlikely, and most probably pseudoscience.It's no pseudo-science.
Unfortunately they leave out some facts, like the fact that it only works for people who are born with antennae.
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583709</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28585073</id>
	<title>Re:Done that myself</title>
	<author>Anonymous</author>
	<datestamp>1246784820000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p><div class="quote"><p>On the other hand, it's not quite good enough to avoid stepping on toys left out by my two year old.</p></div><p>Acoustic expert Juan Antonio Martinez at the University of Alcal&#195; de Henares in Spain says it takes 'Two hours per day for a couple of weeks' to learn echolocation. On the other had, we have the toddler, for which it takes at least 18 years to learn to clean up his garbage after him.</p></div>
	</htmltext>
<tokenext>On the other hand , it 's not quite good enough to avoid stepping on toys left out by my two year old.Acoustic expert Juan Antonio Martinez at the University of Alcal   de Henares in Spain says it takes 'Two hours per day for a couple of weeks ' to learn echolocation .
On the other had , we have the toddler , for which it takes at least 18 years to learn to clean up his garbage after him .</tokentext>
<sentencetext>On the other hand, it's not quite good enough to avoid stepping on toys left out by my two year old.Acoustic expert Juan Antonio Martinez at the University of AlcalÃ de Henares in Spain says it takes 'Two hours per day for a couple of weeks' to learn echolocation.
On the other had, we have the toddler, for which it takes at least 18 years to learn to clean up his garbage after him.
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583813</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584053</id>
	<title>Re:Done that myself</title>
	<author>an unsound mind</author>
	<datestamp>1246722660000</datestamp>
	<modclass>Informativ</modclass>
	<modscore>2</modscore>
	<htmltext><p>Doing it for large objects is between easy and effortless.</p><p>Doing it for small objects is hard.</p><p>I keep colliding into small, hard objects I don't know the location of if I try to navigate by sound in the dark.</p><p>And after that I usually swear, so others can locate me in the dark.</p></htmltext>
<tokenext>Doing it for large objects is between easy and effortless.Doing it for small objects is hard.I keep colliding into small , hard objects I do n't know the location of if I try to navigate by sound in the dark.And after that I usually swear , so others can locate me in the dark .</tokentext>
<sentencetext>Doing it for large objects is between easy and effortless.Doing it for small objects is hard.I keep colliding into small, hard objects I don't know the location of if I try to navigate by sound in the dark.And after that I usually swear, so others can locate me in the dark.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583813</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584441</id>
	<title>We already do this</title>
	<author>The\_Duck271</author>
	<datestamp>1246728120000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>I'm pretty sure everyone has at least some subconscious awareness of their environment based on echoes. I recall one time where I walked into a room in my house and stopped dead because the echoes of my footfalls were so strange; the room had been cleared of all the junk that normally cluttered it. If you pay attention you will notice how the sound of your steps or of your voice changes as you move about.</htmltext>
<tokenext>I 'm pretty sure everyone has at least some subconscious awareness of their environment based on echoes .
I recall one time where I walked into a room in my house and stopped dead because the echoes of my footfalls were so strange ; the room had been cleared of all the junk that normally cluttered it .
If you pay attention you will notice how the sound of your steps or of your voice changes as you move about .</tokentext>
<sentencetext>I'm pretty sure everyone has at least some subconscious awareness of their environment based on echoes.
I recall one time where I walked into a room in my house and stopped dead because the echoes of my footfalls were so strange; the room had been cleared of all the junk that normally cluttered it.
If you pay attention you will notice how the sound of your steps or of your voice changes as you move about.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584849</id>
	<title>Ambient noise imaging?</title>
	<author>Anonymous</author>
	<datestamp>1246736700000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>Ran into this working on a paper once.</p><p>http://www.arl.nus.edu.sg/web/research/romanis</p><p>Fascinating idea, now if only air would transmit the higher frequencies better...</p></htmltext>
<tokenext>Ran into this working on a paper once.http : //www.arl.nus.edu.sg/web/research/romanisFascinating idea , now if only air would transmit the higher frequencies better.. .</tokentext>
<sentencetext>Ran into this working on a paper once.http://www.arl.nus.edu.sg/web/research/romanisFascinating idea, now if only air would transmit the higher frequencies better...</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584287</id>
	<title>Re:I am a firefighter</title>
	<author>Anonymous</author>
	<datestamp>1246725840000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>You have IR cams mounted on your helmets?  Seriously?  We have one per unit officer.  What kind?

Agreed though, it would be nice if this were useful.  I suppose I could build an ultrasonic device that would enable some of these capabilities -- IF it would be useful (unlikely) and IF I wanted to carry even more shit around with me.</htmltext>
<tokenext>You have IR cams mounted on your helmets ?
Seriously ? We have one per unit officer .
What kind ?
Agreed though , it would be nice if this were useful .
I suppose I could build an ultrasonic device that would enable some of these capabilities -- IF it would be useful ( unlikely ) and IF I wanted to carry even more shit around with me .</tokentext>
<sentencetext>You have IR cams mounted on your helmets?
Seriously?  We have one per unit officer.
What kind?
Agreed though, it would be nice if this were useful.
I suppose I could build an ultrasonic device that would enable some of these capabilities -- IF it would be useful (unlikely) and IF I wanted to carry even more shit around with me.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583803</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584277</id>
	<title>Re:It's a good thing my dog wasn't nearby...</title>
	<author>Anonymous</author>
	<datestamp>1246725720000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p><div class="quote"><p>she starts barking defensively to scare off intruders.</p></div><p>An effective method to train a dog to stop barking is to train it <i>to</i> bark on command, <i>then</i> to stop when it's time for a reward. That way it learns what the "stop" signal actually means.</p></div>
	</htmltext>
<tokenext>she starts barking defensively to scare off intruders.An effective method to train a dog to stop barking is to train it to bark on command , then to stop when it 's time for a reward .
That way it learns what the " stop " signal actually means .</tokentext>
<sentencetext>she starts barking defensively to scare off intruders.An effective method to train a dog to stop barking is to train it to bark on command, then to stop when it's time for a reward.
That way it learns what the "stop" signal actually means.
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583811</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584499</id>
	<title>Clickers?</title>
	<author>Sir Holo</author>
	<datestamp>1246729620000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>Tons of blind people use clickers as they walk around.  Not always, because it attracts attention.<br>
<br>
That is actually the secondary usefulness of a cane (after visibility).  You can make tappy-sounds without attracting undue attention.</htmltext>
<tokenext>Tons of blind people use clickers as they walk around .
Not always , because it attracts attention .
That is actually the secondary usefulness of a cane ( after visibility ) .
You can make tappy-sounds without attracting undue attention .</tokentext>
<sentencetext>Tons of blind people use clickers as they walk around.
Not always, because it attracts attention.
That is actually the secondary usefulness of a cane (after visibility).
You can make tappy-sounds without attracting undue attention.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28587155</id>
	<title>Re:Done that myself</title>
	<author>budgenator</author>
	<datestamp>1246818420000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p><div class="quote"><p>  The method of sound generation I used was snapping my fingers, though, and not clicking my mouth which I think would confuse my ears even more since my mouth is connected to my ears.</p></div><p> By using your mouth for clicking, the clicks resonate in frequencies tuned to your internal structures and the returns are also in resonance with your internal structures. This cause a  much greater increase in sensitivity and resolution than non-resonant returns would cause, at least that's what I'd imagine from reported research on bats.</p></div>
	</htmltext>
<tokenext>The method of sound generation I used was snapping my fingers , though , and not clicking my mouth which I think would confuse my ears even more since my mouth is connected to my ears .
By using your mouth for clicking , the clicks resonate in frequencies tuned to your internal structures and the returns are also in resonance with your internal structures .
This cause a much greater increase in sensitivity and resolution than non-resonant returns would cause , at least that 's what I 'd imagine from reported research on bats .</tokentext>
<sentencetext>  The method of sound generation I used was snapping my fingers, though, and not clicking my mouth which I think would confuse my ears even more since my mouth is connected to my ears.
By using your mouth for clicking, the clicks resonate in frequencies tuned to your internal structures and the returns are also in resonance with your internal structures.
This cause a  much greater increase in sensitivity and resolution than non-resonant returns would cause, at least that's what I'd imagine from reported research on bats.
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583813</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583987</id>
	<title>Re:Dubious</title>
	<author>Mprx</author>
	<datestamp>1246721160000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>With no training at all I can clearly distinguish between walls and curtains.  I can't detect a pen in front of my mouth though.</htmltext>
<tokenext>With no training at all I can clearly distinguish between walls and curtains .
I ca n't detect a pen in front of my mouth though .</tokentext>
<sentencetext>With no training at all I can clearly distinguish between walls and curtains.
I can't detect a pen in front of my mouth though.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583709</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584853</id>
	<title>I'm surprised you aren't doing this already!</title>
	<author>tjstork</author>
	<datestamp>1246736880000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>I'm always clicking away as I stumble downstairs and don't want to wake up the wife and kids.</p></htmltext>
<tokenext>I 'm always clicking away as I stumble downstairs and do n't want to wake up the wife and kids .</tokentext>
<sentencetext>I'm always clicking away as I stumble downstairs and don't want to wake up the wife and kids.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583851</id>
	<title>lights overrated?</title>
	<author>Anonymous</author>
	<datestamp>1246719360000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>Good that lights were invented, even portable ones<nobr> <wbr></nobr>...<br>- Not everyone wants to become a bat.</p></htmltext>
<tokenext>Good that lights were invented , even portable ones ...- Not everyone wants to become a bat .</tokentext>
<sentencetext>Good that lights were invented, even portable ones ...- Not everyone wants to become a bat.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584099</id>
	<title>And to learn a bit more. . . .</title>
	<author>hoarier</author>
	<datestamp>1246723200000</datestamp>
	<modclass>Informativ</modclass>
	<modscore>2</modscore>
	<htmltext><p>There's a rather more informative article about it <a href="http://www.sciencedaily.com/releases/2009/06/090630075445.htm" title="sciencedaily.com" rel="nofollow">here</a> [sciencedaily.com].</p></htmltext>
<tokenext>There 's a rather more informative article about it here [ sciencedaily.com ] .</tokentext>
<sentencetext>There's a rather more informative article about it here [sciencedaily.com].</sentencetext>
</comment>
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-http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28583769
--http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584905
--http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment09_07_04_2246211.28584349
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