Physics is a branch of science that wholly underpins the other natural sciences. It’s a fundamental part of everything we do: from the simplest activity like hitting a ball with a bat, to slamming particles together at near lightspeed in multi-billion dollar accelerators, in order to help scientists answer some of the biggest questions about the universe. It’s tough just to touch on the breadth of principles covered by this science in one book, but we’ve tried! In Understanding Physics, discover how gravity keeps our feet on the ground, whether time travel is possible, and more…