A brilliantly diverting and mind-expanding guide to quantum and particle physics.At the start of the twentieth century, our knowledge of science appeared complete and it seemed that the laws of nature were almost all discovered, but then we woke a sleeping giant—we discovered quantum mechanics. In the quantum realm, objects can be in two places at once. It's a place where time travel is not only possible, but necessary. It's a place where cause and effect can happen in reverse and observing something changes its state. From parallel universes to antimatter, quantum mechanics has revealed that when you get right down to it, the laws of nature are insane. The scientist J. B. S. Haldane once said, "Reality is not only stranger than we imagine, it's stranger than we can imagine." Never is this more true than with quantum mechanics. This comprehensive beginner's guide to quantum mechanics explains not only the weirdness of the subject but the experiments that proved it to be...