Isaac Newton changed the way we understand the Universe. Revered in his own lifetime, he discovered the laws of gravity and motion and invented calculus. He helped to shape our rational world view.

Isaac Newton - isn't he the guy who discovered gravity? Great! So, what's gravity? Aaaah, gravity is the force that makes objects fall towards the ground. And, without gravity, we'd all float!

Isaac Newton was one of ... the greatest scientists who ever lived, Newton devoted his life to the study of the natural world, discovering the laws of gravity and motion, analyzing light, and ...