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Is gravity different at the north, and south poles than it is at the Equator?
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Yes - the gravitational constant differs from the equators to higher latitudes.
From [http://www.theweatherprediction.com/habyhints/142/]SOME PERSPECTIVE ON GRAVITY
... Since the earth is not perfectly round, there are slight variations in crust density and the earth rotates, gravity varies slightly with sea-level latitude. Gravity increases slightly with increasing latitude. The difference in gravity between the equator and pole is about 0.034 m per seconds squared. Gravity also decreases slightly with increasing altitude. This is because the r term (distance between two bodies) becomes larger when an object is moved further away from the center of the earth. When r increases, the gravitational force decreases.
-- memento mori
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The gravitational constant (which is a different number that means somthing else) doesn't change, but the gravity force is a little (VERY little) different at the poles.
[i]"The power of accurate observation is often called cynicism by those that do not have it." - George Bernard Shaw[/i]
[i]The glass is at 50% of capacity[/i]
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So centrfical force is greater than the force of gravity at the equator?
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No! Or otherwise you would fly off... gravity is still much stronger, but the centrifugal force will slightly cause the Earth to bulge, so there is more dirt (and hence gravity) under your feet.
[i]"The power of accurate observation is often called cynicism by those that do not have it." - George Bernard Shaw[/i]
[i]The glass is at 50% of capacity[/i]
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So if the Earth was not rotating we would be heavier than we actually are? I bet that bulge is also in the ocean. Perhaps, it is what gives the ocean its currents.
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Ummm, no.
Gravity is slightly less on the equator than at the poles.
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Yes? Well then that would be centrifugal force counteracting gravity a little. I was postulating to fit Daniels' numbers.
[i]"The power of accurate observation is often called cynicism by those that do not have it." - George Bernard Shaw[/i]
[i]The glass is at 50% of capacity[/i]
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So, if I weigh 200 lbs at the equator I should weigh more at the poles?
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Very slightly, yes.
[i]"The power of accurate observation is often called cynicism by those that do not have it." - George Bernard Shaw[/i]
[i]The glass is at 50% of capacity[/i]
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Ah Ha a difference. An advantage.
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A grand total of 00.3% by my figuring... not enough to be practical. Barely measurable.
[i]"The power of accurate observation is often called cynicism by those that do not have it." - George Bernard Shaw[/i]
[i]The glass is at 50% of capacity[/i]
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Not even a good weight loss program.
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