Talk:Earth's rotation

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[edit] German Wikipedia

This article needs more information. Maybe someone is able to translate something from the German Wikipedia. I do not have the time at the moment. Weird Bird 17:23, 27 August 2006 (UTC)

[edit] Why does Earth rotate

It is not mentioned in this article why does the Earth rotate ? 202.68.145.230 14:18, 3 June 2007 (UTC) Amit Rana

Maybe the mentioned site http://curious.astro.cornell.edu/question.php?number=416 tells a good reason for Earth's rotation. 202.68.145.230 14:20, 3 June 2007 (UTC)Amit Rana

There is a section "origin of rotation" right now, which has good information, but for me it was not yet really clear why the earth was actually rotating. After consulting the above website, and another, im going to add it to the "origin of rotation" section. MrZap (talk) 14:02, 29 January 2008 (UTC)

Earth's present rotation period is the result of tidal friction slowing Earth's rotation from an initial value of about 6 hours 4.5 billion years ago to its present value of 24 hours. Any initial rotation acquired from the collapse of the primordial solar nebula was overwhelmed by the rotation imparted to the Earth by the tangential impact of the Mars-sized Theia/Orpheus. — Joe Kress (talk) 05:13, 30 January 2008 (UTC)

I added this, seems very plausible. Could not verify the extend to which factor would be the largest. MrZap (talk) 20:17, 20 March 2008 (UTC)