Q:

In what year did Isaac Newton discover gravity?

A:

Quick Answer

Isaac Newton observed the fall of an apple in 1666 and deduced that the same force pulling the apple to Earth was the same that kept the moon in orbit. He did not publish his theory until 1687.

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Full Answer

Newton was primarily a mathematician, and he used calculations to determine if his prediction was correct. Correspondences with leading scientists of his day led him to calculate the shape of planetary orbits. However, Isaac Newton was a very private man, and he lived almost as a recluse. He did not publish until he was urged and encouraged to by a fellow scientist named Edmond Halley, who was impressed by Newton's mathematical insights.

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Related Questions

  • Q:

    How did Newton discover gravity?

    A:

    Sir Isaac Newton discovered gravity around 1665 while he was drinking tea and observed an apple falling from a tree. Newton deduced that the force that caused the apple to fall to the ground also is the same force that causes the moon to orbit the earth.

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  • Q:

    On what date did Isaac Newton discover gravity?

    A:

    According to Wichita State University, Isaac Newton discovered gravity sometime during the summer of 1665. However, the book where Newton first wrote of this finding, "The Principia," was not published until July 5, 1687.

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  • Q:

    How did Sir Isaac Newton discover gravity?

    A:

    Although never fully substantiated, a legend exists that explains how Sir Isaac Newton discovered gravity after watching an apple fall from a tree. There is some evidence though that this incident did in fact occur. William Stukeley, who was a colleague of Newton, and his assistant John Conduitt both wrote about the event taking place in manuscripts.

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  • Q:

    Why is Isaac Newton famous?

    A:

    Sir Isaac Newton is most well known for explaining how gravity functions. However, the English mathematician and scientist also established the basics for differential and integral calculus and invented a reflecting telescope.

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