Whatever the shape of the wire a DC current can't emit radio waves AFAIK. The
witricity experimental device uses AC at MHz frequencies (cf the link I
provided, here it is again
http://www.mit.edu/~soljacic/MIT_WiTricity_Press_Release.pdf )
Michel
- Original Message -
From: Harry
The article doesn't appear to contain the term AC.
It only speaks of an electrical current although it describes the
magnetic field as oscillating at MHz frequencies. Perhaps this is
inaccurate.
Perhaps it is more correct to say the oscillation starts only when both the
power supply (sender)
emitter could work in DC. But that's not how the witricity device works in any
case, since it operates at a resonant frequency of a few MHz.
Michel
- Original Message -
From: Harry Veeder [EMAIL PROTECTED]
To: vortex-l@eskimo.com
Sent: Saturday, June 09, 2007 9:10 PM
Subject: Re: [Vo
In reply to Michel Jullian's message of Sat, 9 Jun 2007 19:26:17 +0200:
Hi,
[snip]
Whatever the shape of the wire a DC current can't emit radio waves AFAIK. The
witricity experimental device uses AC at MHz frequencies (cf the link I
provided, here it is again
Ah, no.
Electrons in wires generally move far far far too slow to produce
synchrotron or cyclotron radiation at a radiofrequency and while I'm not
100% sure I believe that a uniform current in all parts of the loop would
remove this effect.
DC is still DC if pulsed and will create radiowaves.
On
FYI...
http://www.siliconvalley.com/latestheadlines/ci_6085400?nclick_check=1
Power advance heralds future of gadgets that can be recharged wirelessly
Associated Press
Article Launched: 06/07/2007 02:16:25 PM PDT
CAMBRIDGE, Mass. - Massachusetts Institute of Technology researchers
made a
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