NEWTON AND GRAVITY（ISBN=9780385492416）

　　A good case can be made for Isaac Newton being the finest mind humanity has yet produced. His theory of gravity offered his contemporaries their first glimpse of how the universe actually works, and his mathematics enabled later generations to walk on the moon. Today, we know that gravity keeps our feet on the ground, but how many of us know how Newton's greatest discovery really works? In Newton & Gravity, Paul Strathern encapsulates several of Newton's more mind-expanding discoveries, explaining in lively prose their cultural context as well as Newton's early obsession with science (bordering on dementia) that made his revolutionary vision possible. Just a few of the big ideas covered here are:
　　Newton's discovery of calculus at age twenty-three
　　Why gravity, one of the greatest human insights of all time, was in fact a hunch and how it actually works
　　Why it took Newton twenty years after his discovery to reveal to the world the secret of gravity and planetary motion
　　Ideal for the intelligent reader eager to better understand how and why the universe works the way it does, Newton & Gravity is a fascinating refresher course that makes physics not only fun but shockingly easy to understand.