Alen from hackedgadgets.com wrote about this laser listener device. A microphone is simply a diaphragm that vibrates with sound waves. The theory behind this device is that when people are talking in a room, the window will vibrate. If you shine a laser on the window, it will bounce off with the same vibrations. Using a cadmium sulfide photo voltaic cell connected to a stereo plugin, the laser can be converted to sound recordings. View this cool DIY project here.
20 Responses to “DIY Audio Spy Laser”
Leave a Reply
Very interesting device, if does work like they say it would be pretty cool, kinda
creepy though.
seems to work from a video i’ve seen, although the audio seems very low, maybe an op-amp would help
How To Build a Fireplace…
Burning paper is a good way to have a chimney fire and burn the house down. Please, don’t do that. Ditto the above for leaves… they make great compost. Actually, we are at that point in the world where ANYTHING carbonaceous should be recycled back t…
very cool!
Los hechos indican que los medios de comunicación social trabajan para las empresas. Los consumidores que se concentran ahí, esperan que usted esté allí, y te recompensará con su atención y el clientelismo. Se necesita decir más? fuente: MarketingProf
atesli azgin porno videolari bilgisayariniza indirmeden izleyebileceginiz kaliteli bir site.
About a very beautiful and very informative, thank you to everyone who have contributed to these types of
issues still waiting
Nice post. Thnx my friend. i like this
Chat
seksi videolar porno sikisler ve hersey bu sitede
http://www.ketim.net go on
porno izleyip 31 çekmekten bir deri bir kemik kald?m ve sikim her daim kalk?k olarak dola??yorum k?rlarda bay?rlarda.
http://www.kerhaneee.org
Thank you.
Pas cher moncler Si plus de mode, “parce que nous ne
thanks
youporn izle
chat sayfalar?
thanks you wery nice must
shares, and issues a very nice site very good thanks a lot this site has always been like that admins will get the best always come to this site…
#
thanks you wery nice must