Thursday, June 07, 2007

Interesting

I would be interested in seeing a demonstration of this. I'm not sure I understand it at all.

Rather than sending power from a transmitter to a receiver as a conventional electromagnetic wave - the same form of radiation as light, radio waves and microwaves - he could use the transmitter to fill a room with a 'non-radiative' electromagnetic field.

Most objects in the room - such as people, desks and carpets - would be unaffected by the electromagnetic field. But any objects designed to resonate with the electromagnetic field would absorb the energy.

It sounds complicated, but the result demonstrated by the American team this month was a dramatic success. Using two coils of copper, the team transmitted power 7ft through the air to a light bulb, which lit up instantly.
If its non-radiative, how does it propagate through space?

We are fast approaching the point where science is indistinguishable from magic to all but the most learned. Even then, people working outside of their field of specialty really know very little about how everyday devices work.

You turn on a light and point to it and say "Electricity" but in reality that word means little more to most people than the word "Magic" would coming from a medieval time traveler marveling at the same spectacle.

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