Give Apple an interesting composition theme month.

For a long time, Newton thought that there must be a mysterious force pulling the planets in the solar system towards the sun. But what kind of power is this?

Until one day, when Newton was thinking under the apple tree in the garden, an apple fell at his feet. Newton finally had an epiphany and his problem was gradually solved.

Legend has it that in the autumn of 1665, Newton sat under the apple tree in his yard and thought hard about the reason why the planets moved around the sun. At this moment, an apple happened to fall, and it landed at Newton's feet. This is a moment of discovery. This apple fall was different from countless previous apple falls, which attracted Newton's attention. Newton found the reason why apples fell from the natural phenomenon of falling to the ground-the role of gravity.

This story is said to have spread after Newton's niece, Lady Barton, told Voltaire, a French philosopher and writer. Voltaire wrote in the book Principles of Newton's Philosophy. The apple trees in Newton's hometown were later transplanted to Cambridge University.