8' DSDD disk

Eric Smith eric at brouhaha.com
Tue Jun 7 20:20:44 CDT 2005


Ethan wrote:
> I love the bit about trying to spin it at 30,000 RPM... long before it
> hits that speed, relativistic effects will kick in.

Nope.  30,000 RPM would result in the outer rim moving at 51,472 m/s,
which is only 0.00017c, nowhere near relativistic.  But the floppy disk
is likely to break up at a little over 200 RPM, unless is is being tested
in an evacuated chamber.

Eric






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