Math Is Fun Forum

MathsIsFun

Administrator

Registered: 2005-01-21

Posts: 7,713

Wireless Electricity

They have a light globe working without wires connected to it: http://www.boston.com/business/ticker/2 … ery_c.html

Now, I have seen fluorescents glowing while being waved in an electro-magnetic field. And radios receive energy "wireless"-ly, so whats the big deal? Maybe this is simply more practical. Hope it doesn't harm humans.

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"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

LQ

Real Member

Registered: 2006-12-04

Posts: 1,285

Re: Wireless Electricity

I believe the humans will be shaken, but not sturd.

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I see clearly now, the universe have the black dots, Thus I am on my way of inventing this remedy...

mathsyperson

Moderator

Registered: 2005-06-22

Posts: 4,900

Re: Wireless Electricity

I read about this just a few hours ago. I think the main difference is that the fluorescent lights have to be very close to the field to work, because they're being lit by electroagnetic induction, but this new thingy works differently and so can light things much further away.
I'm not sure how, but from what I read it seems like this new thing gets electronic devices to resonate somehow.

As for radios, they do technically receive energy, but it's really just 'information' in the form of energy, rather than energy that's energetic enough to energise anything.
Oh, and the article I read also said that it will interact only weakly with humans and so side-effects are unlikely.

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Why did the vector cross the road?
It wanted to be normal.

MathsIsFun

Administrator

Registered: 2005-01-21

Posts: 7,713

Re: Wireless Electricity

That sounds very promising then!

But radio energy is real energy, just not a lot of it. I have heard of people living near radio transmitters "stealing energy" by a strategically placed network of wires.

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"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

John E. Franklin

Member

Registered: 2005-08-29

Posts: 3,588

Re: Wireless Electricity

http://web.mit.edu/newsoffice/2007/wireless-0607.html
http://web.mit.edu/newsoffice/2007/wireless-0607.html

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