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On Jan 17, 2010, at 12:06 PM, Harry Veeder <[email protected]> wrote:





----- Original Message ----
From: Abd ul-Rahman Lomax <[email protected]>
To: [email protected]; "[email protected]" <[email protected]>
Sent: Sun, January 17, 2010 10:06:18 AM
Subject: Re: [Vo]:Back EMF: Sean may be right


If, in fact, there were twice as much energy appearing in the rotor, that rotor would accelerate with extreme rapidity, and low-friction bearings would be
completely unnecessary.

How do you know? With regular bearings it may require more energy then the system can
generate.

Isn't that my point? They are drawing relatively high power from the battery. If all of that ends up as heat, and twice as much is going into rotational energy, there should be no problem with bearings. But hey , if I have the math wrong, let's say they haven't given us the info to show it. I didn't do actual calculations, just seat of the pants estimation.

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