0

Leon Theremin, Microwave Ovens, and the History of Bugging #MusicMonday

via CDM

Spying with microwaves is actually reasonably easy, because electromagnetic frequencies reflect physical vibrations – they become a carrier for sound. So even without a microphone, EMF signals can under the right circumstances contain the traces of sound waves as amplitude modulation. s

Now, this won’t come as news to anyone who’s a fan of the history of Leon Theremin, because the inventor of the instrument of the same name also pioneered the technique. I’ve actually shown his invention (The Bug) in lectures, because the story is just too good.

But I think what’s more interesting than any of this is the fact that spying is all about doing something that the other person doesn’t expect. That’s what made Theremin a genius. He took a technique that was technologically simple and applied it to a new context, in such a way that no one had thought to look.

Read more


Join 4,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

Learn “How Computers Work” with Bill Gates, Ladyada and more – From Code.org !

CircuitPython in 2018 – Python on Microcontrollers is here!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more https://www.instagram.com/adafruit/


Maker Business — Pololu’s New Machines

Wearables — Glue for the occasion

Electronics — Disable unused channels!

Biohacking — Two Blood Meters to Start Your Biohacking Adventure

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



No Comments

No comments yet.

Sorry, the comment form is closed at this time.