alt Hacker NewsYou can use a 9V battery powered amplifier with a loop around your neck to make a tiny permanent magnet placed in your ear canal vibrate against your ear drum.
It doesn't generate hi-fi sound, but speech is remarkably clear. Great for magic tricks. Or cheating at exams I suppose.
Replies
EvanAnderson • last Thursday at 4:07 PM
That's really cool, but the idea of sticking a magnet inside my ear gives me the willies. >shudder<
hrimfaxi • last Thursday at 2:24 PM
Has this actually been done before? It sounds fascinating. I have seen accounts of people embedding tiny magnets in their hands but not their ears.
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I think the copper ring around your neck a.la Will Smith in Wild Wild West may clue in the test proctor to some suspicious activities