Comments on: HOW TO: Make a Laser Espionage Microphone http://www.geeksaresexy.net/2007/08/17/how-to-make-a-laser-espionage-microphone/ tech, science, news and social issues for geeks Sun, 08 Nov 2009 08:35:30 -0800 http://wordpress.org/?v=abc hourly 1 By: Amaya http://www.geeksaresexy.net/2007/08/17/how-to-make-a-laser-espionage-microphone/comment-page-1/#comment-131912 Amaya Mon, 26 Jan 2009 18:47:57 +0000 http://www.geeksaresexy.net/2007/08/17/how-to-make-a-laser-espionage-microphone/#comment-131912 Can we use any kind of photocell? IS there any kind that is or isn't "powerful" enough? A photocell only transforms the light into a resistance, but I don't understand how the resistance can be transformed into sound! Please can somebody help me I'm really desperate! Can we use any kind of photocell? IS there any kind that is or isn’t “powerful” enough?
A photocell only transforms the light into a resistance, but I don’t understand how the resistance can be transformed into sound!
Please can somebody help me I’m really desperate!

]]> By: The Arcana Wiki: Laser Microphone http://www.geeksaresexy.net/2007/08/17/how-to-make-a-laser-espionage-microphone/comment-page-1/#comment-101528 The Arcana Wiki: Laser Microphone Sun, 31 Aug 2008 11:23:37 +0000 http://www.geeksaresexy.net/2007/08/17/how-to-make-a-laser-espionage-microphone/#comment-101528 [...] HOW TO: Make a Laser Espionage Microphone - video Wikipedia entry [...] [...] HOW TO: Make a Laser Espionage Microphone – video Wikipedia entry [...]

]]> By: Earl Shaffer http://www.geeksaresexy.net/2007/08/17/how-to-make-a-laser-espionage-microphone/comment-page-1/#comment-101034 Earl Shaffer Thu, 28 Aug 2008 22:57:55 +0000 http://www.geeksaresexy.net/2007/08/17/how-to-make-a-laser-espionage-microphone/#comment-101034 It would help to know sources of parts that work together. It would help to know sources of parts that work together.

]]> By: John http://www.geeksaresexy.net/2007/08/17/how-to-make-a-laser-espionage-microphone/comment-page-1/#comment-95408 John Fri, 01 Aug 2008 15:17:41 +0000 http://www.geeksaresexy.net/2007/08/17/how-to-make-a-laser-espionage-microphone/#comment-95408 Internal light and sun light is a diffuse reflection you need specular reflection in order for this to work Internal light and sun light is a diffuse reflection you need specular reflection in order for this to work

]]> By: Dude http://www.geeksaresexy.net/2007/08/17/how-to-make-a-laser-espionage-microphone/comment-page-1/#comment-48619 Dude Wed, 27 Feb 2008 19:49:01 +0000 http://www.geeksaresexy.net/2007/08/17/how-to-make-a-laser-espionage-microphone/#comment-48619 Why do you even need the laser? Why not just focus the photo cell on the window. If this BS truly worked the photocell should be able to use sun light or the houses internal light to pick up vibes off the glass, thus translating the vibes into audio. As much as I want to believe this, I have to call BS. Why do you even need the laser? Why not just focus the photo cell on the window. If this BS truly worked the photocell should be able to use sun light or the houses internal light to pick up vibes off the glass, thus translating the vibes into audio. As much as I want to believe this, I have to call BS.

]]> By: Dominic Tarro http://www.geeksaresexy.net/2007/08/17/how-to-make-a-laser-espionage-microphone/comment-page-1/#comment-48101 Dominic Tarro Sun, 24 Feb 2008 17:29:36 +0000 http://www.geeksaresexy.net/2007/08/17/how-to-make-a-laser-espionage-microphone/#comment-48101 when i made i thought it was amazing that it actually works so i brought it in for a science fair at my school. when i made i thought it was amazing that it actually works so i brought it in for a science fair at my school.

]]> By: MadMan http://www.geeksaresexy.net/2007/08/17/how-to-make-a-laser-espionage-microphone/comment-page-1/#comment-44567 MadMan Fri, 08 Feb 2008 16:01:56 +0000 http://www.geeksaresexy.net/2007/08/17/how-to-make-a-laser-espionage-microphone/#comment-44567 That's stupid. The laser beam won't spread- That’s stupid. The laser beam won’t spread-

]]> By: Not So Fast » Clever http://www.geeksaresexy.net/2007/08/17/how-to-make-a-laser-espionage-microphone/comment-page-1/#comment-22280 Not So Fast » Clever Tue, 30 Oct 2007 22:18:51 +0000 http://www.geeksaresexy.net/2007/08/17/how-to-make-a-laser-espionage-microphone/#comment-22280 [...] all your ghetto spy laser mic [...] [...] all your ghetto spy laser mic [...]

]]> By: YUNoWok http://www.geeksaresexy.net/2007/08/17/how-to-make-a-laser-espionage-microphone/comment-page-1/#comment-20731 YUNoWok Thu, 25 Oct 2007 19:08:45 +0000 http://www.geeksaresexy.net/2007/08/17/how-to-make-a-laser-espionage-microphone/#comment-20731 it doesn't work for me!!! please tell me if you have to buy the headphones from america cos both the headphones i've tried have got a copper coloured wire, a blue coloured wire and a green coloured wire!!! please sum1 tell me how to wire it if u know with these colours and if i have to buy dem from AMERICA!!!!!!!!!!!!!!!!!!!!!!!!!!! it doesn’t work for me!!! please tell me if you have to buy the headphones from america cos both the headphones i’ve tried have got a copper coloured wire, a blue coloured wire and a green coloured wire!!! please sum1 tell me how to wire it if u know with these colours and if i have to buy dem from AMERICA!!!!!!!!!!!!!!!!!!!!!!!!!!!

]]> By: erwiH http://www.geeksaresexy.net/2007/08/17/how-to-make-a-laser-espionage-microphone/comment-page-1/#comment-19654 erwiH Sun, 21 Oct 2007 20:18:11 +0000 http://www.geeksaresexy.net/2007/08/17/how-to-make-a-laser-espionage-microphone/#comment-19654 ive tried to do this and i have everything needed. got a cadmium sulfide ldr (photocell), but its aint working... do u need a specific type of cds, with a specific type of resistance or wateva??? and i cant find headphone wire with 3 inner wires, only ones with 2 or 4 wires??? does the reflected laser dot have to cover the entire surface of the photocell , coz mine only covers a small area?? pls help, need to get this working ive tried to do this and i have everything needed. got a cadmium sulfide ldr (photocell), but its aint working… do u need a specific type of cds, with a specific type of resistance or wateva??? and i cant find headphone wire with 3 inner wires, only ones with 2 or 4 wires??? does the reflected laser dot have to cover the entire surface of the photocell , coz mine only covers a small area?? pls help, need to get this working

]]> By: Technoshaman http://www.geeksaresexy.net/2007/08/17/how-to-make-a-laser-espionage-microphone/comment-page-1/#comment-19400 Technoshaman Sat, 20 Oct 2007 16:56:55 +0000 http://www.geeksaresexy.net/2007/08/17/how-to-make-a-laser-espionage-microphone/#comment-19400 But "Layenda" by "Albeniz Asturias" :P But “Layenda” by “Albeniz Asturias” :P

]]> By: Steady Stan http://www.geeksaresexy.net/2007/08/17/how-to-make-a-laser-espionage-microphone/comment-page-1/#comment-17500 Steady Stan Fri, 05 Oct 2007 20:13:40 +0000 http://www.geeksaresexy.net/2007/08/17/how-to-make-a-laser-espionage-microphone/#comment-17500 @Daniel Doucet Actually, there can, and usually is ambient noise. Depending on how large, far away from the subject, thick, steady the glass object is, there can be quite a bit of undesired noise. I've done this a few times and it's rare to get it perfect. Also, it's not rarefraction, it's rarefaction... and yes, it does deal with compression and rarefaction, it just uses glass as the sounding board. Light is merely the transmitter of analog information from vibrating medium: glass. @Daniel Doucet

Actually, there can, and usually is ambient noise. Depending on how large, far away from the subject, thick, steady the glass object is, there can be quite a bit of undesired noise. I’ve done this a few times and it’s rare to get it perfect.

Also, it’s not rarefraction, it’s rarefaction… and yes, it does deal with compression and rarefaction, it just uses glass as the sounding board. Light is merely the transmitter of analog information from vibrating medium: glass.

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