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Laser DIY – How to Build a Laser Listening Device!

We’ve all watched too many spy movies in our life probably and know what you can do with lasers, such as listening to conversations miles away.  Well, it’s actually possible to do that (for those of you who don’t know) and here’s a guy who built one himself.

The idea is that sound from someone speaking will vibrate the window that is in the same room as them. If you bounce a laser beam from a 5mW laser module off the window the laser beam will be deflected slightly as the window vibrates. If you monitor this vibration you will be able to hear what is

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Laser DIY – How to Make a Green Laser Microscope!

For those of you who have a green laser, you might want to try this experiment, beam the laser through a drop of water and you can use your green laser as a microscope!

The author of this project used a 250mW green laser and should also work with a 200mW green laser you can pick up on Amazon for just $149.

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Laser DIY – How to Make Laser Light Show w/ Speakers!

Looking for new ways to make a DIY Laser show?  Well, last year I used mirrors and PC fans to make a simple party green laser projector, there’s also ways to use sound “frequencies” to make the laser respond.   Any form of light will be affected by the frequency change in the sound if it’s loud and close enough. (You can also take an example of an oscilloscope and speaker example

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