Newton, Isaac

An English scientist and mathematician of the seventeenth and early eighteenth centuries. Newton made major contributions to the understanding of motion, gravity , and light ( see optics ). He is said to have discovered the principle of gravity when he saw an apple fall to the ground at the same time that the moon was visible in the sky. He also invented calculus . ( See Newton's laws of motion .)

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Legend has it that Sir Isaac Newton detected the force of gravity in a falling Apple.

Sir Isaac Newton was the first philosopher who clearly explained the composition of light, as derived from the sun.

This Sir Isaac Newton and hundreds of others could abundantly attest.

The child at play is noisy and ought to be noisy: Sir Isaac Newton at work is quiet and ought to be quiet.

The behavior of Sir Isaac Newton, when kicked in the stomach, was perfectly scandalous.

The mightiest efforts of Sir Isaac Newton, were performed, while nourished only by bread and water.

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