How Good Is Your Geographic? [5]

Here is an easy one:

http://upload.wikimedia.org/math/c/b...51663f9d76.png

This equation is a mathematical expression of what geographical characteristic?

:stareup: It's easy for those who speak old chinese.......

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Originally Posted by gadjo_dilo

:stareup: It's easy for those who speak old chinese.......

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not chinese... I see angular velocities, orbital periods, densities, gravitational constants, massive masses, ... the music of the spheres :andrea:

Sounds like donkey is on the right track.
Looks to be a measure of force, based on variances of accelerations. So, I'll guess it's the measure of gravitational pull between planets?

You guys are on the right track, but it has to do specifically with the mass of the earth!!

I see an e for equator, a p for pole, a w for rotation, an M for massive mass of the Earth... the faster you spin the thicker you get :andrea:

A measure of the centrifugal force caused by the earth's rotation?

those aren't a for acceleration, think r for radius... a measure of Billy's missus' bulge around the belly when she spins ? :andrea:

Quote:

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Originally Posted by donKey jote

those aren't a for acceleration, think r for radius... a measure of Billy's missus' bulge around the belly when she spins ? :andrea:

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That's it, an equation for equatorial bulge! :sailor: :angel:
Although I think schemke got it first!! :dork:

it's actually an approximation for the flattening factor due to self gravity of a rotating fluid spheroid of constant density...
the faster you spin the thicker you get... over to schmonkey :sailor: