I screwed up by a factor of a million..
jimlux wrote:
Bruce Griffiths wrote:
Advisable given the required mass will probably be in the 10-100 ton
range.
Bruce
J. L. Trantham, M. D. wrote:
Personally, I would get out of the way. : )
Joe
Wait a minute.. is it that big? or is it much, much bigger..
Inverse square is involved.
The moon's mass is 7.3E22 kg, and it's 400 km away (eccentric 0.055)
400 E3 km away...
Let's say our mass is 4 meters from the pendulum... that's a factor of
1e5, so the inverse square is 1e10.. 7.3E22 /1e10 = 7.3E12 kg
required... A bit more than 100 tons..<grin>
7.3E6 kg..
Call it 7E9 tonnes. If it were water, a sphere about 1200 meters in
radius...
7E3 tonnes.. not too bad
12 meters in diameter
I'm assuming you'll be using something really really dense (depleted
Uranium, perhaps.. very, very inexpensive in 80,000 pound lots) that
will get you about 20 times denser.. get you down to a 400 meter radius
sphere.
4 meters in diameter... starting to be feasible, eh?
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