Newton's Principia

A possible way of resolving the greatest problem of physics.

Over the last few years the words string theory have nudged their way into public consciousness. It's a theory of everything in which everything's made of strings — or something like that. But why strings? What do they do? Where did the idea come from and why do we need such a theory? David Berman has an equation-free introduction for beginners.
A rare first edition of Newton's mathematical masterpiece has been stolen! And is Newton the Greatest Briton?
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