[MyArete]

The charging pads work. There used in small things like electric tooth brushes. They use induction, much like a transformer. The problem with induction for wireless transmission is that the effective voltage that can be produced on the other end is inversely proportional to the square of the distance between the two stations. To induce any significant voltage at any significant distance, say a meter or more, would require an enormous amount of voltage. People have wanted this for a long time and I'm sure many cooperations are working toward that goal (who wouldn't want the patent on that?), but it is kind of looked at as the perpetual motion machine, a little far fetched. Not to say it can't be done.

Before I go further with this, I want to look some things up. I'll get back to this soon (but it'll take me a while). I read this article a while back, it address wireless power in much more concise way than I can now. And, I'm pretty sure, if it happens, it can be made safe for occupants.

[TMV]

I got my information from but its been a while since i have seen it. http://www.ted.com/talks/lang/eng/er...ectricity.html

so i just watched it and i was a little off

[MyArete]

TMV that video is amazing.

This article provides doesn't have a cool demo (it does talk about it) but it gives wireless power an academic look.

http://spectrum.ieee.org/green-tech/...wireless-power

[Mythros]

heres a video of tesla coils emitting wireless electricity tmv. i was the one who asked the question.

YouTube- ‪Tesla coil wireless demo part...

yeah, MyArete the charging pads are neat. ive seen some devices that work from a distance, but from what i understand they are energy hogs. ive read they are mostly used in factories where wireless is the only method of transferring electricity. i seen some kids that built one using tesla coils like in the video to power a remote control boat in a kids pool at a science fair. it was really neat.

[MyArete]

I'd like to see that, the science fair thing. And yeah, I wouldn't think that it could be too efficient, but now I'm just speculating. I've never done anything with the coil other than like up a florescent bulb (which is not the same thing we'd need to power our computers).

[TMV]

In the ted video at the end the charge a google g1 an Iphone and power a tv all off the wireless power. Some one correct me if im wrong but doesn't a tesla coil just ark electricity. where as the wireless power used a sort of sinked magnetic field.