If you drop an object through a hole in the Earth stretching from the North Pole to the South Pole, it would oscillate back and forth about 17 times per daypic.twitter.com/crCfBFK2qp
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*cough* someone doesn't know physics in non-inertial reference frames *cough*
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We're thinking an ideal non spinning earth and the ball dropped is a spherical cowpic.twitter.com/IdyfjujIHq
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