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View Full Version : WiTricity : or Wireless Electricity



marwen
07-30-2010, 07:44 PM
See this video :
http://www.ted.com/talks/eric_giler_...ectricity.html

A very practical solution for mobility.
Theoretically, it's safe : no radiation (like mobile phone signals), it's just a power transfer using a magnetic field. But a number of potential dangers/disadvantages may be found in the future I think.

But I think it's a great Idea.
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Ğħαrєєвαħ
07-30-2010, 07:48 PM
Ooh sounds geeky i dunno

I have wireless Internet :-\

lol it made me laugh when he said "Wires suck" :-\ geek
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marwen
07-30-2010, 07:50 PM
^ yeah ;D, but I agree with him ; wires are annoying
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Ğħαrєєвαħ
07-30-2010, 07:52 PM
I agree they are annoying im just waiting for the part when he says that
He speaks too much SubhaanAllaah and i am listening i have no idea what hes saying its too Scientistological :-\ or big worded in my wording :-\
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Ğħαrєєвαħ
07-30-2010, 07:57 PM
Wow MashaAllaah thats kool, when he makes the small screen turn on wirelessly just by waving it around the Big Tv screen thingy
Jazakallahu Khaayr for sharing
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أحمد
07-30-2010, 08:05 PM
:sl:

Its nothing new; toothbrushes and computers have been using this technology for at least 10 years.

:wa:
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marwen
07-30-2010, 08:53 PM
format_quote Originally Posted by {A}
:sl:

Its nothing new; toothbrushes and computers have been using this technology for at least 10 years.

:wa:
:sl:

May be it's not new (i dunno), but I never saw it in computers or toothbrushes, can you give examples brother ?

:wa:
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أحمد
07-30-2010, 09:00 PM
format_quote Originally Posted by marwen


:sl:

May be it's not new (i dunno), but I never saw it in computers or toothbrushes, can you give examples brother ?

:wa:
:sl:

Power transceivers in PSUs.

:wa:
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Dagless
07-30-2010, 09:17 PM
format_quote Originally Posted by {A}
:sl:

Its nothing new; toothbrushes and computers have been using this technology for at least 10 years.

:wa:
Those work at very close range. Real wireless power should be available anywhere in the home.
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marwen
07-30-2010, 09:25 PM
format_quote Originally Posted by {A}
:sl:

Power transceivers in PSUs.

:wa:
hmm ok. I never saw them before, I thought these automatic toothbrushes (i never used them) work only on batteries, but it seems they can be wireless, but there must be a transmitter somewhere plugged in the sector no?
concerning PCs, is that a component we can add to PCs ? because they don't exist in ordinary ones
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Dagless
07-30-2010, 09:32 PM
format_quote Originally Posted by marwen

hmm ok. I never saw them before, I thought these automatic toothbrushes (i never used them) work only on batteries, but it seems they can be wireless, but there must be a transmitter somewhere plugged in the sector no?
concerning PCs, is that a component we can add to PCs ? because they don't exist in ordinary ones
They do work on batteries, there is no such thing as a wireless power toothbrush commercially I am aware of. He means the actual charging process is via induction. This occurs in quite a few things and although it is 'like' wireless electricity, its not the same as the link you posted in terms of range, efficiency, and power.
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marwen
07-30-2010, 09:42 PM
^ Ok, thx Bro Dagless for the clarification.
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أحمد
07-30-2010, 09:43 PM
format_quote Originally Posted by Dagless
They do work on batteries, there is no such thing as a wireless power toothbrush commercially I am aware of. He means the actual charging process is via induction. This occurs in quite a few things and although it is 'like' wireless electricity, its not the same as the link you posted in terms of range, efficiency, and power.
:sl:

Look for Oral B Vitality; cheaper £15 range charges on wireless charging technology and it doesn't take batteries.

:wa:
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marwen
07-30-2010, 09:49 PM
format_quote Originally Posted by {A}
:sl:

Look for Oral B Vitality; cheaper £15 range charges on wireless charging technology and it doesn't take batteries.

:wa:
do you mean they have a built-in battery inside them ? (if not why do they need charging ?)
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أحمد
07-30-2010, 09:59 PM
format_quote Originally Posted by marwen

do you mean they have a built-in battery inside them ? (if not why do they need charging ?)
:sl:

They work on capacitors, which cancel's out the need for batteries.

Many circuit boards work use capacitors instead of batteries.

:wa:
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marwen
07-30-2010, 10:05 PM
Ok, that makes sense. But the video talks about a little bit different method : you don't have to charge the device and then use it, you have a magnetic power field in the house and your devices will work continuously as if they were plugged in the power jack with wires.
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Dagless
07-30-2010, 10:10 PM
format_quote Originally Posted by {A}
:sl:

They work on capacitors, which cancel's out the need for batteries.

Many circuit boards work use capacitors instead of batteries.

:wa:
You're saying that the toothbrush works using only capacitors and contains no battery? I don't know how far capacitors have come but to my knowledge the capacitor would be bigger than the toothbrush if that's all it used.
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