thrown off
dlzc wrote:
Dear r_dela...:
On Thursday, June 20, 2013 7:28:24 PM UTC-7,
wrote:
How fast would the earth have to spin, so that stuff
started flying off?
Others have given you an answer based on the Earth being a solid body
with its current shape.
The Earth is like a creme filled chocolate, and if you even tried to
double its speed, it would lobe up, and spin off another Moon. Even
a 50% increase would be pretty disastrous.
David A. Smith
If by double its speed, you mean an equatorial velocity of 0.93 km/s, it
would have only a very small effect (slightly more oblate) and in fact the
Earth probably had such a speed a very long time ago. The idea that the
Earth "spun off" the Moon is very old and nowadays pretty well discredited.
--
Mike Dworetsky
(Remove pants sp*mbl*ck to reply)
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