It took Newton, one of the world's greatest mathematical minds and, by all accounts, an irascible jerk, 20 years to articulate his thoughts on gravity to his satisfaction.

Sir Isaac Newton invented calculus and explained optics. His most significant work involved forces and the development of a universal law of gravity.

Was the scientist Isaac Newton a grandfather of the American Revolution? When Newton published his revolutionary new theories of gravity and motion way back in 1687, I’m sure he didn’t ...