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Old 12-06-07, 02:17 PM
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WiTricity - Wireless Electricity

MIT team powers light bulb without wires. The breakthrough could lead to wireless power in the mainstream market.

Read the news article here

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Old 12-06-07, 02:21 PM
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How long before they decide it gives us cancer?

/Goes too actualy read the article
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Old 12-06-07, 02:30 PM
llwyd llwyd is offline
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Heard about this a few months ago and though 'that cant be as it sounds because wireless electricity = massive lightning bolt'

Having looked at the article, isn't that just induction over a larger distance? I did that in yr11 physics Having more coils on the 'inducee' creates enough voltage / current (cant remember which increases with a step-up) which then allowed us to run it through a small transformer setup and power a light with a ~1 foot gap from the primary circuit and the secondary circuit........ and that was just messing around when we had finished the curriculum
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Old 12-06-07, 04:54 PM
nathan nathan is offline
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Quote:
Originally Posted by name='llwyd'
Heard about this a few months ago and though 'that cant be as it sounds because wireless electricity = massive lightning bolt'

Having looked at the article, isn't that just induction over a larger distance? I did that in yr11 physics Having more coils on the 'inducee' creates enough voltage / current (cant remember which increases with a step-up) which then allowed us to run it through a small transformer setup and power a light with a ~1 foot gap from the primary circuit and the secondary circuit........ and that was just messing around when we had finished the curriculum
i'm pretty sure its going to be a little more advanced. or at least i hope.
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Old 12-06-07, 07:04 PM
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Rastalovich Rastalovich is offline
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This may well be inefficient and have other issues, but I`m glad they do things like this. They tend to branch off into other things, something halfway down the line gets turned into something else.

Sometime in the future, some car-tech guy`ll come out to see u`r car cos it`s stopped and be able to stand next to it and charge u`r battery or summit. (yes u`ll all still be using internal combustion even then)
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Old 12-06-07, 11:40 PM
PP Mguire PP Mguire is offline
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Quote:
Having looked at the article, isn't that just induction over a larger distance? I did that in yr11 physics Having more coils on the 'inducee' creates enough voltage / current (cant remember which increases with a step-up) which then allowed us to run it through a small transformer setup and power a light with a ~1 foot gap from the primary circuit and the secondary circuit........ and that was just messing around when we had finished the curriculum
Bingo, i did the same thing my JR year of Physics as well.
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Old 13-06-07, 08:57 AM
JN JN is offline
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Sounds like its a long long long way off begin used for anything worthwhile tbh.
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Old 13-06-07, 10:26 AM
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Yeah it is a long way from being useful but I thought it was a cool concept
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Old 24-07-09, 10:48 AM
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Rastalovich Rastalovich is offline
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http://news.bbc.co.uk/1/hi/technology/8165928.stm

A new demonstration video.

(I knew there was an old link on this somewhere)
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Old 24-07-09, 11:34 AM
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Holy thread revival batman
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