Spying with a Laser
Ғылым және технология
Want to spy on people with a laser? Dating back to the 1940s, this oldie but goody is super simple to pull off! We can easily send audio over a laser and into a basic light-sensitive receiver.
The method itself was developed by Léon Theremin in the 1940's and originally used a simple IR beam invisible to the naked eye. Of course, we have made this much simpler at a slight cost of audio quality.
The possibilities are endless for this simple device, you could bounce the laser off a window and hear what is going on inside, you can hook an mp3 player into the power circuit and stream your music out as well.
All the items shown here are easily obtained at an electronic's store such as Radio Shack or Frys and won't cost much more than a few bucks if you get a cheap laser.
Check out www.hostgator.com and enter the code "SCITUESREV3" to get 25% off your order .
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@TrollsGoBouncing
7 жыл бұрын
Jett Aniceto #national stalking society
@TrollsGoBouncing
7 жыл бұрын
American Idiot association works too
@TrueMentorGuidingMoonlight
6 жыл бұрын
Splinter Cell approved too :)
@Dragon-Slay3r
Жыл бұрын
And pentagon, Hollywood script writer. 🤣
@keriwages6608
Жыл бұрын
Only for the nsa
that conversation was creepy
@boomstudios1822
8 жыл бұрын
Yeah
@roserachel6584
3 жыл бұрын
Do you know that there are some stunning tricks using which you can spot a cheating spouse within seconds? These ways are so effective that they are guaranteed to reveal the truth and end all the lies within seconds.....You can't afford to miss this at any cost. contact *hackjamal11* on Instagram. Text +1(940) 242-7397
What about a giant super laser point it to the moon to hear the aliens.
@SoniderosK67
8 жыл бұрын
+Clan Sapngad That would be pretty expensive. And there are no aliens on the moon ._.
@jacobowns8856
8 жыл бұрын
+Clan Sapngad Interesting concept but remember the laser has to bounce back to hit the receiver =P 4:54
@clansapngad9312
8 жыл бұрын
Jacob Owns The moon can reflect light or just send a reflector to the moon.
@brentancoates4421
8 жыл бұрын
+Clan Sapngad if my meory is correct there is reflecting devices on the moon, for calibrating purposes with those huge telescopes etc
@onionhead5780
8 жыл бұрын
Aliens on the moon? No Aliens are on the moon. That's ridiculous! Everyone knows the moon is made of cheese.
time to be a secret agent again....
@zybeel If you feel overwhelmed by the instructions, just watch it a couple times. It is a very basic circuit here and the receiver itself is just two wires on a input jack. The best way to learn is trial and error.
something tells me his neighbors watched this video
@i_am_a_crybaby_and_i_am_pr2882
8 жыл бұрын
ikr
@sillypotatoes5859
4 жыл бұрын
a penis a penis penis penis penis penis
@LoganT547
3 жыл бұрын
@@sillypotatoes5859 my thoughts exactly
@ayaanjonejo8179
3 жыл бұрын
🤣🤣🤣
@Sythorize
2 жыл бұрын
@@sillypotatoes5859 well said
I used a higher quality solar panel/laser pointer, it works BEAUTIFULLY! I love your videos!
"have you ever wanted to spy on your neighbors with just a beam of light?" O>O....O
@sillypotatoes5859
4 жыл бұрын
another way with a light first off you need another person a torch and a and then after that you'll need a glass basically get the other person to go with the glass up to the window and then point of the direction of the conversation with the torch and then but then press the brass against the window you've got another one just waiting for eventually are you can get a f*ck off
@johnakridge2916
3 жыл бұрын
Yes?
@saaaaaakkkkkkkkkkeee
3 жыл бұрын
@@sillypotatoes5859 that's a definite possibility of and absolute maybe
@roserachel6584
3 жыл бұрын
Do you know that there are some stunning tricks using which you can spot a cheating spouse within seconds? These ways are so effective that they are guaranteed to reveal the truth and end all the lies within seconds.....You can't afford to miss this at any cost. contact *hackjamal11* on Instagram. Text +1(940) 242-7397
THAT TABLECLOTH THO! It hurts my eyes
For the laser audio transmitter you need a transformer in line with the laser pointer and the audio will sound much clearer. Use a low power solar cell if you're using a high gain amp. I used one from an old solar garden light and it was almost overpowering my amp.
this is the best diy project I've ever seen! Man, you're the cherry on the cake!
So thats how dubstep started :D
i was wondering if you power up the electret microphone and laser device (transmitter). so electret microphone picks up sounds surrounding and send it to receiver.
ya the ladies coming over, you got to leave
@Bee-bup
10 жыл бұрын
LEAVE THE CONDOM
School project in 1967 was to send music over a laser beam from about a mile away. Back then it was a gas laser, of course.
"Honey, the geek across the street is spying on us again!" -His neighbors
its funny, when you were transmitting clear audio from your phone from 3 feet away directly into your solar cell, you couldn't make any of it out, but miraculously you were able to "Bounce" light off of neighbors window, receive it in your solar cell and get clear audio, how wonderful. Oh by the way, where is your audio amplifier, is it that big thing because you need audio amplifier connected to your solar cell to amplify the vibration before it can be converted back into sound. I take it that you're not an engineering student
@NuDavai
5 жыл бұрын
utubefrog09 also the fact that the neighbours window was probably double glazed dosent help either
@3dot88
4 жыл бұрын
Students are good at regurgitating taught facts. Don't get memory mixed up with intelligence
@Alex-to4iz
4 жыл бұрын
First time didn't work because the laser needs to be reflected on a surface that is vibrating because of sound waves. The vibration gets reflected with the laser and the receiver is then able to convert it back to audio. That's why pointing the laser directly into the receiver is not going to retrieve any sound. You shouldn't make assumptions, accuse someone of faking a video and even making fun of him for not being an engineering student when you don't even know the principles that makes this work. Get your facts straight if you are going to make such a disrespectful comment.
@USAlien234
3 жыл бұрын
Im not saying he didnt fake it, but the laser did have a greater exposure over the entire panal after it was reflected. His Iphone test was just one small stream. The reflection covered the entire panal. Idk 😆
@americanairlines3945
3 жыл бұрын
I'm pretty sure he faked it too, just dubbed a distorted voice over a track of static noise. Double pane windows only tend to transmit sound at the resonant frequency of the window. And if his receiver didn't pick up anything from the modulated laser there's no way It could have not a good signal from his neighbors.
Lesbian neighbors + Good quality = YES
@Maxjoker98
10 жыл бұрын
Just get a spycam then, I guess?
@bendrummond6508
9 жыл бұрын
Max I'm not breaking into someones and placing spy cam lol
@adamfattal468
9 жыл бұрын
Maxjoker98 where is the fun in that, this is cheaper and makes you feel like a ninja spy
I watched a couple of your videos and i was just like subscribe now!
SO COOL this is just one of the reasons why I have subscribed to this guy.
It sounds like you're trying to summon Satan xDDD
@bilyisbored92 This is a very old (by my standards) trick. But it was too awesome to not let everyone know about. There are a multitude of ways to do it as well. There is another similar method by Simon Quellen that he posted up on scitoys some years ago. A bit more involved but it will produce a better quality output.
That's a really good way to get audio for a horror movie
I've gotten everything together, but seem to be having just a little trouble when I aim the laser back and forth over the solar pad. I D K for sure yet, but it's as if I have to let it rest a second on the panel for the sound to record. I'm using a solar panel from one of those little "sidewalk torch's" So my question is this: Does "sensitivity" of the panel make a difference? And/or does the output of the panel, (Ie charging strength) make a difference? Thank you
i don't get the thing with the laser on the window and your solar panel.. where do you point the laser at, and how do the signals come in (in what form..)
@JDSileo
10 жыл бұрын
Glass windows reflect back a small portion of the light that hits them. The idea is you point the laser in such a way that it bounces back at your solar panel. The window itself will react to the sound waves in the room. The vibrations will cause th returned laser beam to distort into patterns that can be translated into sound.
@semt-ro5282
10 жыл бұрын
Joseph Sileo thank you very much for the explanation
Or for the same price as your laser pointer and gear you can buy a mini spy microphone which is much clearer.
@earthclad6833
9 жыл бұрын
stop ruining the fun bro.
@DSandwichEh
9 жыл бұрын
Omar Coston but your range isn't as free
@omar1s1
9 жыл бұрын
DS4ndwich ' can be tweaked and tinkered with like this getup.
@omar1s1
9 жыл бұрын
malik terrell ya fun stuff
very good tutorial! thanks for making this!
Thanks man, Now I understand the opening scene from Spectre.
I think 90% of his subscribers are secret agents!!!! LOL!!!!
You know, many of your hacks ma be useful to secret agents
@zachbradley9464
10 жыл бұрын
probably already have things 10x better then that things that you may not want to know about
@1988orpheus
10 жыл бұрын
They actually already use "laser" microphones to listen to something inside a room by pointing the beam on a window, but I think it was not a visible beam and they probably don't use a solar panel as receiver but more likely a light sensor diode or something
@1988orpheus
10 жыл бұрын
They actually already use "laser" microphones to listen to something inside a room by pointing the beam on a window, but I think it was not a visible beam and they probably don't use a solar panel as receiver but more likely a light sensor diode or something
@babybirdhome
9 жыл бұрын
Yup, laser mics have been around and available to the public since at least the late 1980s - early 1990s.
@NovaMellowCraft
9 жыл бұрын
i have 10 of these outside my windows spying on Microsoft and seeing their next plan (i wish XD)
your making me like science love these videos!!!!!!!!!keep up the great work man
You should make an all day live stream with that in a window... Of course it'll only work at night though...
Wouldn't this work better with a blue laser; since their is deeper uv rays. For example I noticed that the blue laser shot at a solar panel gives it much more power, and basically means that the signal with the blue laser would be more clear and powerful?!!
@HYBECTIVE
10 жыл бұрын
That's why I commented!!!:) ;) :D
@theIfrit552
10 жыл бұрын
RANDOM VIDS true it should work better that way
@VaderDarth512
10 жыл бұрын
I knew that
@billywilliams4396
10 жыл бұрын
So a red laser is the least affective because of its long wavelength?
@Appalachian7922
10 жыл бұрын
Billy Williams That seems opposite to what I've learned. I suppose the only real way to test this would be to experiment! A blue laser would have a higher frequency, yes, and thus more energy, but the smaller wavelength would probably cause it to scatter more so it couldn't travel as far. But either way, I think it'd be cool to either use UV or IR radiation so you wouldn't have to worry about someone seeing you shining a laser through their window! On another note though, I wonder if your regular everyday solar panel would detect these frequencies of light. If so, UV would probably be better as objects give off blackbody IR background radiation at room temps, creating lots of interference. Love this stuff.
I used a photovoltaic diode instead of a solar panel
Wow, this works better than I expected, now all you've got to do is filter out the noise.
@MasterSamus What do you mean relay? internal parts imo would never make sense to use laser instead of wires and for anything else it wouldnt make sense because you have to point the thing...they tried it with infrared if im correct i remember on an old nokia cell i had you could use either Bluetooth or infrared to transfer data are you thinking of something similar?
i want to make a reciever thats a IR laser and transmitter hooked up to a recording device lol
I was expecting a laser camera.
Where to get the solar panel? as well as the one from the emergency phone video, I cant seem to find small ones anywhere!
If I made the first circuit with a USB cable instead of the batteries, and an LED light instead of the laser, would the light flash slightly to music played through the audio jack? Also, what is a MONO audio jack? Does it have to be mono?
So you shine the laser on their window, get it to reflect off and onto your panel? Not sure how this works, can someone explain? I know the science of it just not the set up.
@billywilliams4396
10 жыл бұрын
The windows vibrate when the person talks, and the beam is reflected differently when the window vibrates. Because of this, the solar panel transmits more or less electricity to the speaker depending on how the window vibrates. I know this is a crude explanation, but that's all I can offer in a short KZread comment.
@Appalachian7922
10 жыл бұрын
Billy Williams That actually helped me out a lot, as I was having the same problem understanding. So cool, though. Thanks, Billy!
@SriTejaChilakapati
10 жыл бұрын
Billy Williams So, What you are telling basically is the sound waves travel along with laser. Right? Correct me if I am wrong.
@MrTuts4life
10 жыл бұрын
Sri Teja Chilakapati I think it's the way the soundwaves are picked up by the laser because the vibrations caused by the window cause the beam to "wobble/shake" to the soundwaves, this pattern is then picked up by the solar panel.
@SriTejaChilakapati
10 жыл бұрын
Oh. I understood. Thank you MrTuts4life
R.I.P headphone users :DD
@lighthouse2946
3 жыл бұрын
Trust no one using headphones without music playing. They're demonic peeping toms, watching and studying us trying to imitate us children of God Almighty
Hoisehold is there an item that can b e purchased to stop /interefere with covert listening devices within walls?
How many volts and mA is your solar panel? I found a 3V solar panel with 10mA and one with 200mA which one should i buy?
subscribed.. just for research purposes
cool,now if you replaced the green laser with a infra red laser then no one will know they were being spyed on
@TheFireMage100
10 жыл бұрын
but how do you know how to reflect it? yeah true do maths bu you would need a distance i presume and you would have to make *that* and put it in the circuit so that *doesnt* *work*
@Chris47368
10 жыл бұрын
you could use a infra red sensitive camera to reflect the beam to the right place and you can buy an infra red pointer easily of the web if you know where to look so you would just have to do the same what was done to that green laser in the vid so not too much circuit modification,apart from obviously the receiver which you may have to build but that is shown in the vid.
@Chris47368
10 жыл бұрын
the infra red light also will reflect like normal light it behaves very much like visible light just that its a tiny bit too far on the red side of the light spectrum so our eyes cant see it only just.As long as it is not too far in the infra red spectrum you should be fine
What if you use all three colors (red, blue, green) at the same time giving the audio a chance to be expressed from 445nm-635nm? My hypothesis is this would give a better quality.
Congratz bro, thats pretty sic. I'm too cheap to go out and buy the parts
I love lasers
I wonder if that guy knows he was being spyed on
@fiercingdragon
9 жыл бұрын
Nope. He doesn't see the laser.
@akameevee4780
9 жыл бұрын
Well he will if he watched the vid XD
You found the location of a dial up modem. Nice!
What is the background track called for this tutorial video?
Do you think infrared would work?
@Ricky32908
10 жыл бұрын
i researched, no it would'nt have enough energy to work :(, maybe a less noticable color like red would do
@wicklash9065
10 жыл бұрын
I wonder if a more powerful lazor would sound better
@Ricky32908
10 жыл бұрын
maybe, there are solar cells in development to capture not just visible light but also UV for a cloudy day, those might
@Logarithm906
10 жыл бұрын
Ricky32908 I'm curious about why you said IR wouldn't work. IR has a longer wave length meaning it's more likely to reflect than UV against a barrier and looking up IR reflection in clear glass specifically, that looks like it's the case too. Also it's not like we don't use IR to transmit data at higher bitrates than sound every day anyway (normally called a TV remote or toy car remote). The only issue is the sensor, the solar panel. IR receivers are tuned to only receive a specific band of IR from a tiny LED back when LED's weren't superbright. Meaning no need to turn the lights out either. I can actually see this being done with only a bit of optics to collaminate an IR LED and an off the shelf IR receiver. Even if glass does transmit or absorb IR, replacing the LED with a superbright IR led would probably be enough for the sensor to detect the signal. No prototype UV specfical PV cells or UV laser required. Now granted this IR system may not work outside on a sunny day, but neither will the UV system (ozone does absorb UV but why would they even be researching UV specific PV cells if no significany UV reached the ground? Also sunburn....)
@darioampuy
10 жыл бұрын
professional laser microphones use IR lasers in the 790nm freq so yeah...
Does this really work?
@kenstr321
9 жыл бұрын
"yes" it does but using a solar cell would be about the least efficient receiver you could think of. It's reacting to changes in wave length a solar cell is made to catch a very wide range of wave lengths across it's whole surface. A better receiver would be a would be a light sensing diode or "Photodiode".
@MithradatesMegas
9 жыл бұрын
kenstr321 Wanna bet? How about a pumpkin pie?
@kenstr321
9 жыл бұрын
Mithradates Megas Do you mean a raspberry pie? The DYI electronics kit?
@MithradatesMegas
9 жыл бұрын
No. You said that Solar Panels are worse receivers than anything I could imagine - I have issued a challenge to that statement!
@OopsieGoopsie
6 жыл бұрын
OMG WHATS WITH THE FUCKING IDIOTS SPELLING Raspberry Pi WRONG!?!?!?!??! i mean i get why ppl type it pie but still no!
I really enjoyed this video.
take the lens out and it will work much better, the dark areas on the solar panel act as a resistor so it sounds scratchier.
How powerful is the laser?
It says "Oh hey there Sarah, What's going on?" Or "Oh hey uhh Sarah what's going on?"
Which Mw amount would you recommend on the laser for best audio quality?
This is nuts....I wonder what effect you'd get with an infra-red laser...invisible. higher spectrum. Would be interesting to see.
5:01 Best dubstep I've ever heard :D
this is similar to how radio works. Sound messages are shot outwards from the broadcasting tower through light, then the Ariel in your radio picks up the light and transmits the sound carried on it (:
HOLY SHIT HOST GATOR IS AMAZING!
I have a science fair in a week. I dont know where to get the Audio Jack. I have searched everywhere for the one he has in the video. I still cant find it! Please help me.
Thanks. Now I have discovered what my friend plays from my own bedroom. Awesome.
How do you set the laser up to record? I didn't see how that worked. Are you bugging someone in your own home, or doing remote surveillance? A layout diagram might help. Cool idea, tho. C.
That is really badass
a schematic would come in handy dude.. thumbs up
amazing. that is so cool!
Would it work better with a fiber optic cable (or just a clear plastic wire)?
lol, cool posting, and simple thanks. it seems that if you point the laser source and receiver at a higher incident angle, you could get a clearer audio, however the laser source and receiver would have to be at seperate locations. TIR (total internal reflection) , i could be wrong
i am trying to transmit and receive audio oka at the receiver the solar panel should have range of what volt & current to absorb the light
you might wanna open your screen on your window metal might be the reason why your sound being bounced its coming in rough, also you might wanna add some cap's & resistors to the circuitry to smooth out that feedback
photovoltaic optical scratching is epic
Happy 200 video!
This is amazing 👀
wow these are the type of videos that youtube was founded on. So nostalgic
We can use it to listen to sounds on the moon, or anywhere where astronomy special laser can point at. You get the idea.
what is the name of the soundtrack used at the beginning?
¿how the panel solar can "listen" something, connected in the ipod's auricular plug, if the ipod already has a normal microfone?. How the ipod conseders the panel solar as a microfone and no as an auricular or speaker?. I have tried, but with my cellphone, and it kept up listening from the normal microfone and no from the panel :(
imagine my face when i saw that video and i figure out it was 12 years ago.. imagine what tech they have now..
oh at last these many days i thought it was fake but yesterday i figured out that there was a loose contact in my circuit and therefore it did not work but now it works perfectly thanks.instead of the mono audio jack i used a mono av jack
Amazing!
Harmonic distortion at it's best!
this is really cool
@LPMansl1 The solar panel is in your own house... you bounce it off the window while you're pointing it out at the other house, so the reflection hits back to the panel, which is the receiver.
can you use a solar panel off of a calcualtor, and would a blue laser light work better than the red
I am no laser expert but I believe you can use IR beams, except the reciever would have to be a camera, considering cameras only pick up the IR beam, and then hook up your camera video to a solar panel.
could you use a mono jack for speakers of computer and plug it to the computer(laptop)?
@00011theman What if you put another battery in the receiver circuit?
Good video! Those wires by the way are known as alligator clamps.
Where do you get these cool ideas?
the laser pointers are at the drugstore counter because the put the most important items in the back and the most uncommon items in the front. that way you have to walk past all the other products when you go to get the items in the back of the store
@n00bcr3w How come they used a huge lazer thingy rather than a tiny mic?
What program do you use to make your intro? P.S: It's very cool... :D
yo i wanna see the inside of this dudes house. he must have homemade EVERYTHING! XD
@HouseholdHacker what kind of wires are those?? please answer asap!!
This would be soooo awesome with infrared laser beams !
That spying laser is so cool :D
could u use a led light instead of a laser and hook up your music to it and make lights go with your music? just a thought