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Re: Power source

From: Eric Laforest <>
Date: Sun, 7 Nov 1999 21:00:51 -0500

On Wed, Nov 07, 2001 at 05:05:38PM -0600, Charles J Knight thus spake:
> 
> > emergency power source for outdoor use or in case of extreme
> > power load from large peripherals (like flash tubes).
> > If the whole thing is appropriately built into a tiny aluminum alloy
> > box, tank and all, it could in fact produce large amounts of power.
> 
> Any ideas as to the amount of power?  I know that it will run as long
> as there is a source of fuel, so it's not a simple matter of watt-hours.

Hmmm...totally unscientific scaled example:
ISTR hearing about a classic VW Bug engine ouput: 96kW

With a vehicle of known mass, measuring time from 0 to some arbitrary
speed should give a ballpark value of the power output of it's engine
(at least the part that ends up pushing the car once friction and 
thermodynamics have claimed their share).

Also, in the episode about the internal combustion engine on The Secret
Life of Machines (totally awesome Brittish(sp?) show) a demonstration was given
where a guy sat in a swivel chair and held out a 2x4 (6 feet?) with
the tiniest model airplane engine they could find (a *really* small thing, had
it's own built-in micro fuel tank) attached to it with a common-sized
model airplane propeller.
This was more than enough power to rotate him at a decent clip.

Eric

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