The Earth-Moon System
By Tom Brown
“When it is darkest, men see the stars.”
-Ralph Waldo Emerson
- 751 reads
1 The Moon: Science and Mystery
From the earliest times men have been fascinated by the Moon, a cold desolate beauty, calm, serene, a light for the dark, wise and knowing, a witness...
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- 1144 reads
2 Elusive Answers
Indeed it sounds like a standard exercise to establish the story of how the Earth-Moon came to be, then we can leave it and get on with the Big-Bang...
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3 Calculating the Past
The Moon is very slowly receding from Earth it is predicted even by elementary physics and can be measured. This is a simple fact and is the result...
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4 Model of the Moon-Earth
We assume the Earth and the Moon are solid spheres of respective known masses as well as moments of inertia. The Moon orbit is circular and the...
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Orbits and Timed Rotations
Suppose we had a situation where the orbital angular velocity equals that of rotational spin in some two-body system such as you have in the earth-...
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- 510 reads
A drifting moon
The other day someone wrote to a local radio program he wanted to know whether the Moon rotates (spins) around it's own axis. The Astronomer said yes...
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- 608 reads