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Which of these scientists formulated the law of gravity?

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The English mathematician, physicist, astronomer, theologian, and author Sir Isaac Newton was one of the most influential scientists of all time. He formulated the law of universal gravitation by watching an apple fall from a tree.
Culture Club/Getty Images
Culture Club/Getty Images
Which of these scientists formulated the law of gravity?
- Galileo Galilei
- Sir Isaac Newton
- Robert Boyle
- Marie Curie
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