On Tue, 30 Jan 2001, Peter Wemm wrote:
PW>Mark Huizer wrote:
PW>> > |
PW>> > | Doh! I mean 9.8 m/s/s, of course.
PW>> >
PW>> > That's acceleration not velocity :-)
PW>> >
PW>> > The terminal velocity of a PC case is probably a lot lower than the
PW>> > velocity of an outer edge of a 10000 RPM drive.
PW>> >
PW>> What am I doing wrong? Given a diameter of appr. 7cm, I'd come at appr
PW>> 0.7Mach. Does that mean that within a few years my machine will go
PW>> KABOOM when booting?
PW>
PW>I have a 15K rpm drive if you want to do a recalculation. I think that
PW>is 1.05Mach, depending on whether you rounded or not. ;-)
Well, 7cm gives 21cm per rotation or 2.1km for 10000 rotations. 10000
Rotations Per Minute give around 130km per hour which is somewhere around
0.1MACH. So I expect not problems until the drives reach 50000 rpm :-)
harti
--
harti brandt, http://www.fokus.gmd.de/research/cc/cats/employees/hartmut.brandt/private
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