Alexander Whiteside (or somebody else of the same name) wrote in message
thusly:

Don't you mean "turn it into a speed"? Rotations per minute don't tell you
much about the velocity of something. Something 2m wide spinning at 1000
RPM will have different parts of it moving at different speeds.

No, I asked for the speed at the *surface* at the *equator*. That is a
single unique figure for a given spinning sphere, e.g. just over 1000 mph
for the Earth.

Now take it's spin angular momentum (h/4pi), turn that into an rpm and so
find the surface spin speed at the "equator". You'll find it's many times
greater than c.

--
Paul Townsend
I put it down there, and when I went back to it, there it was GONE!

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