the following project will show how you can use a laser pointer to hear noises from hundreds of feet away (the distance will be relative to the strength of the laser).

Step 1: Materials

We need
1. a laser pointer
2. a old pair of headphones (mic cable with stripped ends)
3. cadmium sulfide photocell (avaible at radioshacks)
4. 2 Tripods
5. A computer with audio recording software 

pls vote for me in the wicked laser contest
couldn't you do it with an IR laser (provided you have the tools necessary to align it with the photocell)
<p>You can if you have the sender and receiver. It's be better because IR is invisible to the naked eye. </p>
<p>Laser photophone, you must use an audio amplifier to replace the pc too.</p>
<a href="http://www.youtube.com/watch?v=iI8w2s05sd8" rel="nofollow">http://www.youtube.com/watch?v=iI8w2s05sd8</a><br> <br> Found the video you got this from. Congratulations, you know how to take screenshots.<br> <br>
I appreciate this! I've been looking around trying to find <a href="http://www.bostonhearing.com/page_hearing_device_styles.php" rel="nofollow">brookline ma hearing device</a>, and don't really know a whole lot about it. But this is great! Thanks for sharing.
did you really make it
i think you did not take those pics<br>you just copyed and pasted here from google<br>
did you just google 'laser project' and think this one was the easiest?<br><br><br>I did that then made something better cause they would catch me out....

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