amnhnyc: Happy birthday to famed physicist and mathematician Isaac Newton, born on this day in 1642. In 1687, Newton published a remarkable discovery. He figured out that the same force that causes an apple to fall to the ground also keeps the Moon

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amnhnyc: Happy birthday to famed physicist and mathematician Isaac Newton, born on this day in 1642. In 1687, Newton published a remarkable discovery. He figured out that the same force that causes an apple to fall to the ground also keeps the Moon

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