Powercast - Sending electricity via radio waves

Pretty amazing....

Category:

Science & Technology

Tags:

• CES
• CES2008

[agungk]

if it's RF then just be careful with any antenna-like devices. metal pen for example.

also you might inadvertently set your neighbour's house on fire (if he happen to have some loops suitably shaped to act as spark gaps...

[Karma01010]

This is okay for short range, but would be incredibly wasteful for long range. Remember the inverse square law.

[laser74hobby]

THANK YOU NIKOLA TESLA!!!

[zeroG131]

Wirelesss electricity? didn't Nicola Tesla work on that type of technology?

[vivadangermouse]

I'm pretty sure my electric toothbrush uses similar technology to recharge without contacts ;)

[agungk]

indeed, it's depend on the frequency.

however, there are many conductive objects/structures with different dimensions. some might accidentally resonate with the generator frequency.

strong RF source will swamp nearby receivers even if the receivers are not tuned onto the source frequency.

[joelito101]

doesn't that depend on the frequency and modulation of the signal? Besides,how far does it go. And does this mean that radios won't work anymore?