An informative accessible easytouse guide to physics covering the fundamental concepts and amazing discoveries that govern our universe We dont need a U.S. Supreme Court ruling to know that everyone is governed by the laws of physics but what are they How do they affect us Why do they matter What did Newton mean when he said For every action there is an equal and opposite reaction What is gravity What is Bernoullis Principle Einsteins Theory of Relativity How do space time matter and energy all interact How do scientific laws theories and hypotheses differ Physics can often seem difficult or complex but its actually beautiful and funand it doesnt need to be hard to understand. Revised for the first time in a decade the completely updated third edition of The Handy Physics Answer Book makes physics and its impact on us the world and the universe entertaining and easy to grasp.