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Wireless electricity possible, says MIT - Page 4

post #31 of 35
Quote:
But MIT researcher Marin Soljacic believes that this characteristic of induction, if used right, can transfer energy over longer distances within an electromagnetic field. Instead of covering the environment with electromagnetic waves, "a power transmitter would fill the space around it with a non-radiative electromagnetic field," he said. In fact, he projects that the field can be fine-tuned so only specific devices will pick up the energy. Most energy that is not picked up could be "reabsorbed by the emitter."
This is ridiculous. Think of the interference caused by this, Wide area of no phone signal, TV, radio. And like pauldovi said the sheer amount of current required to make an electromagnetic field large enough, and spin it (spinning is required to generate electricity in the receiving technology) would be massive! what a waste.
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post #32 of 35
Quote:
Originally Posted by ThaLoveDocta View Post
bluetooth was conceived and implemented to your ear in a matter of months, not years. this can and will affect consumers.

Also... watch out cuz ppl could start stealing power wirelessly just like they steal your neighbours internet and your cable or whatnot.
Somehow i think that bluetooth is slightly less complex than wireless electricity. It's a pipe dream for most people. the super rich could afford it, but for most people it simply wouldn't be an option.
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post #33 of 35
I dont believe they are talking about long range wireless power transmission. Anyone here have a sonicare toothbrush? That's pretty much wireless power because there is not plug going from the base to the brush when recharging, the brush simply sits in the plastic base (no exposed electrical contacts) and recharges the battery.
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post #34 of 35
Quote:
Originally Posted by Xavier1421 View Post
I dont believe they are talking about long range wireless power transmission. Anyone here have a sonicare toothbrush? That's pretty much wireless power because there is not plug going from the base to the brush when recharging, the brush simply sits in the plastic base (no exposed electrical contacts) and recharges the battery.
I was thinking exactly the same.
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post #35 of 35
hey the theory itself is feasible at least, and the project doesn't sound to be to far off the key to being able to use it if really is a good source. the only real problem is that yes it would take a tremendous amount of electricity to keep a good flow of enough energy to charge up to as many as possibly even 8 laptops or such at a time, that and if the limiter that would need to be kept on it blew think massive 360 emp (electromagnetic pulse). so yeah
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