Why does any free-falling object pulled to the Earth's surface? So many complicated theories are presented in the net, mostly due to magnetic forces, some of which are backed by mathematical equations, but none seems to be sensible.
Well, could the pulling of an object without support to the center be likened to a centrifuge that we encountered in our chemistry class? Elements, liquid and solid, are placed in a test tube in an experiment, and the test tube are made to spin clamped to the centrifuge to gather the formed particles to the bottom of the tube.
The centripetal force caused by this rotation willed the particles to settle towards the center of the centrifuge,being more denser than the liquid in the solution causing it to gather at the bottom of the test tube.
I am not really very sure that gravity is caused by both spinning and revolving of the earth. But earth continues to spin and revolve, due to angular momentum and the inertia of motion.
The net says that we continue to be in the gravitational field of the Earth within about 10 times its radius. Just like David's stone tied in a string and spun around, letting it go to hit the target's eye, it escapes the centripetal force, to let it go free-willing, as we have in space travel.
by carmen herrera uy, november 23, 2013
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