what is difference between geoid and circle
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A geoid is the shape of the earth whose surface that of sea level with sea level determined only by the earth’s spin and gravity, that is, neglecting winds and currents. The geoid surface goes under land masses. (I had to check on this!)
An ellipsoid is an object whose surface intersects with various planes as circles and ellipses (of course a circle is an ellipse whose foci are coincident and the major and minor axes are equal in length.)
The bottom line is that I can hold an ellipsoid in my hand but not a geoid
An ellipsoid is an object whose surface intersects with various planes as circles and ellipses (of course a circle is an ellipse whose foci are coincident and the major and minor axes are equal in length.)
The bottom line is that I can hold an ellipsoid in my hand but not a geoid
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geoid :
The geoid is the shape that the surface of the oceans would take under the influence of Earth's gravity and rotation alone, in the absence of other influences such as winds and tides.
circle:
it is a locus that is at the equal distance from a fixed inner point.
The geoid is the shape that the surface of the oceans would take under the influence of Earth's gravity and rotation alone, in the absence of other influences such as winds and tides.
circle:
it is a locus that is at the equal distance from a fixed inner point.
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