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Old 09-May-2008, 04:38 PM
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Quote:
Originally Posted by ravens_cry View Post
Heres a wondermant about centrifuges and near light speed. Now if a record on a recocrd player spins at 33 1/2 rpm, at the edge. However, at a spot closer to the center will be spinning faster.
What? I may be reading this wrong, but the entire record spins at the same RPM, and the spots closer are moving slower (they travel a smaller circumference in the same amount of time)

Quote:
Originally Posted by ravens_cry View Post
but what about a centrafuge spinning at say 70% the speed of light.
By quoting a linear speed instead of a rotational speed, the assumption is the outer circumference. So...

Quote:
Originally Posted by ravens_cry View Post
... Wouldn't that mean there are actual spots on the arm of the centrifuge spinning faster then light speed?
no
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