Re: MIT wireless power.. "breakthrough"? (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Fri, 08 Jun 2007 07:24:04 -0700
From: Ed Phillips <evp@xxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: MIT wireless power.. "breakthrough"? (fwd)

This is MY opinion on this: (rant)
(I'm still in high school)

Nikola Tesla lit an array of neon tubes with his coil from a
distance of 27 miles.

This is just using electromagnetic inductance, just like a tesla coil.
It's simply an air core transformer with a hell of a lot of input
power...I would guess there would be substantial loss passing current
between two inductors. Following the law of conservation of energy,
they can never get out more than they put in... now factoring in
electromagnetic loss, heat loss, and coil resistance, I cant see this
being much of a break through... hell, my electric tooth brush charges
via electromagnetic inductance at about 1" away.

I saw this a couple months ago that "MIT" had developed this "break
through" technology to transmit power wirelessly.. I have yet to see
what is such a break through, about it.

Along with the fact that I wish I could be there helping..  :) 

Sorry for ranting.

That's my whole view on this project. Am I missing something?"

John:

	You're not missing anything at all about the MIT nonsense - it simply demonstrates resonant coupling.  Recently Soljacic somehow or other made the astonishing discovery (known to the rest of the world since even before Tesla's work of ~115 years ago) that two resonant circuits tuned to the same frequency could couple energy fairly effectively.  No laws of nature broken, nothing really new except an effective publicity campaign misusing obscure technical terms which will eventually embarrass MIT if it hasn't done so already.

	As for the "27 mile demonstration" that too is only an entertaining myth as I'm sure others will point out to you.

Ed