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Mansfield's Earth Formation Hypothesis.
The hypothesis being that Earth formed from the collision of two medium sized planets.
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Last post by preearth
Thu Jan 27, 2011 1:00 pm
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Space/Astronomy
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Tue Aug 17, 2010 5:26 pm
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Mathematics/Physics
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Last post by Norman Wildberger
Fri Jun 18, 2010 7:10 am
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Architecture/Engineering
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Last post by Sam
Sat Oct 02, 2010 12:12 pm
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Geology/Earth History
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Last post by preearth
Fri Aug 06, 2010 9:12 am
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Chemistry/Biochemistry
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Last post by Nickel&Dime
Wed Jul 28, 2010 6:36 pm
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Archaeology/Anthropology
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Last post by ancient one
Wed Jan 26, 2011 7:44 pm
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Biology/Botany
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Last post by preearth
Thu Mar 26, 2020 11:28 am
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Computing/Technology
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Last post by Geek
Tue Mar 10, 2020 4:00 am
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The Environment
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Last post by preearth
Wed Aug 09, 2023 12:27 am
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Off Topic
Anything you like (no ads or porn).
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