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To: JF Quinnelly who wrote (328)2/19/1998 2:07:00 PM
From: Maurice Winn  Read Replies (1) | Respond to of 5853
 
Work? Eeek!

Epstein-Barr virus causes some lymphoma. Epstein invents lymphoma cure for Techniclone. Epstein manages the Beatles. Epstein makes little steam engines. Who is this guy?

Moments of inertia = 4 engineers in a pub. Little turbine rotors have super low moment of inertia and F = mw2r. So a particle of rotor tries to detach itself according to the square of the rotation speed but only linearly increases with radius = distance from the centre of rotation. The F stays the same = limiting force holding the particle on the rotor so if you double the rotation speed [w] you have to quarter the radius. So yep, a super micro one will really rip around without flying apart. Fast rotation is good.

Bearings = why not go guts and make them superconducting supporters running in vacuum? No air drag or oil = further price drops in oil price, even if USA nukes some palaces. Did you see our Hercules nearly take off on 3 engines [has 4] to go and sort out Saddam?

But still, thermodynamic efficiency, weight and cost are going to make fuel cell the best electricity supply for electronics.