darxus | Nikola Tesla's wireless energy

The only electronics kit I ever had demonstrated that you didn't need a power source for a radio reciever, which is kind of neat.

So couldn't you just radio broadcast a 60z tone, rip the headphone off that unpowered radio reciever and attach an a/c volt meter and get a reading?

I had heard that Tesla thought he had figured out how to charge the sky to give everyone free electricity, but that must have been crazy, right?

A couple days ago I watched this:
http://www.wimp.com/nikolatesla
That was the first time I heard he was building a radio tower to attempt the first trans-atlantic transmission - which also happened to be his sky charging machine. So he had broadcasting access to the entire electromagnetic spectrum, and presumably lots of power.

And thismorning I lay in bed lazily contemplating how a radio transmission becomes an audible tone. Since I'm not much of an electronics geek, I first thought, hey, that makes a speeker reciprocate, and generating electricity off of that is easy - before I realized you could just use the speaker inputs as power outputs.

Anybody have a radio transmitter, perhaps one of the tiny ones for getting a cd player to talk to a car stereo? Those unamplified radio kits must be cheap.

What am I missing here? How is wireless power not obvious?

I remember reading recently that somebody finally recently invented wireless power - something involving ocelating electromagnetic waves - duh.

Funding for Tesla's transmitter was cut off when they found out about the broadcast electricity thing, because the people with the money wanted to keep charging for the electricity.

Nikola Tesla's wireless energy

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