DiscussWorldIssues - Socio-Economic Religion and Political Uncensored Debate - View Single Post - Hypothetical

**ycMC0PLg** · 09-27-2011, 03:50 AM

Interesting. In that case, it if wasn't catastrophic somehow, and somehow went unnoticed, the day would be shortened or lengthened accordingly, depending which way the mantle rotated.

No, the day wouldn't be shortened at all in this case. You'd be at the same longitude, but just a different latitude. Your clocks would be off compared to where the sun angle is during the day. It would no longer be at its zenith at noon the next day.

Of course, this makes vacuum's assumption that angular momentum was conserved. If not, then the length of day/night would change at your location, but not the day length (which would still be 24 hours, unless the rotation speed also changed).

09-27-2011, 03:50 AM	#30
ycMC0PLg Join Date Oct 2005 Posts 444 Senior Member	Interesting. In that case, it if wasn't catastrophic somehow, and somehow went unnoticed, the day would be shortened or lengthened accordingly, depending which way the mantle rotated. No, the day wouldn't be shortened at all in this case. You'd be at the same longitude, but just a different latitude. Your clocks would be off compared to where the sun angle is during the day. It would no longer be at its zenith at noon the next day. Of course, this makes vacuum's assumption that angular momentum was conserved. If not, then the length of day/night would change at your location, but not the day length (which would still be 24 hours, unless the rotation speed also changed).
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