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doit_the_clown doit_the_clown
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7 years ago
How long will it take for precession to move the Earth's spin axis to a position perpendicular to the ecliptic plane?
A)   No time at all because this is its position now
B)   A very long or even infinite time because it is very unlikely to happen
C)   13,000 years
D)   26,000 years
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein
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discovererdiscoverer
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7 years ago
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