And at the Equator, would the Longitude circle be the biggest circle of them
all, because there is a bulge at the Equator. A bulge because the mass is
forced out due the the Earth spinning? Anyone know the answer, I don't?
I believe the moon also warps the Longitude circles because that is why
there is a high tide in two places on the Earth at the same time. The moon's
gravity pulls the Earth mass and that also makes a high tide on the opposite
side of the Earth away from the moon. The high tide on the moon side of the
Earth is caused by the moon's gravity pull on the water.
Looks to me that the Latitude/Longitude circles are all warping and
changing?
Do I have this correct?
Roderick Wall.
-----Original Message-----
From: David Patte ₯
Sent: Thursday, April 11, 2013 12:08 PM
To: sundial@uni-koeln.de
Subject: Re: Is East/West always at exact 'right-angles', to North/South?
True - correction accepted, except at the equator :)
I wonder if the poles have infinitely small latitude 'circles' ;)
On 2013-04-10 22:02, kool...@dickkoolish.com wrote:
While longitude lines are great circles, latitude
lines are small circles.
David Patte wrote:
Yes, at the point of intersection they are, but don't forget though that
lat and long are great circles, not straight lines.
Of course, there is no east or west at the poles.
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