When do you turn off your Ubuntu boxes?
John at DMJ-Consultancy.co.uk
Fri Dec 1 15:00:16 UTC 2006
Steve Flynn wrote:
> On 01/12/06, *John* <John at dmj-consultancy.co.uk
> <mailto:John at dmj-consultancy.co.uk>> wrote:
> Warmed-up components wear less than cold ones. As for the bearings in
> fans, these are non-contact so don't have any friction or wear.
> Non-contact bearings? Where can I buy my own anti-gravity machine to
> operate my own non-contact devices and frictionless systems. Perpetual
> motion, here I come.
> Despair - It's always darkest just before it goes pitch black...
Look into air bearings - the spinning motion 'injects' a film of air
into the gap between the rotating parts, no contact, just like a hovercraft.
Look into maglev trains - the electro magnetic effect of what is, in
effect, an unwrapped motor, provides the separation between the fixed
rail and the moving train (you must have heard about the crash in
Germany in the last few months! Same effect is used in some small fans.
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