## Paradox: The Nine Greatest Enigmas in PhysicsA fun and fascinating look at great scientific paradoxes.Throughout history, scientists have come up with theories and ideas that just don't seem to make sense. These we call paradoxes. The paradoxes Al-Khalili offers are drawn chiefly from physics and astronomy and represent those that have stumped some of the finest minds. For example, how can a cat be both dead and alive at the same time? Why will Achilles never beat a tortoise in a race, no matter how fast he runs? And how can a person be ten years older than his twin? With elegant explanations that bring the reader inside the mind of those who've developed them, Al-Khalili helps us to see that, in fact, paradoxes can be solved if seen from the right angle. Just as surely as Al-Khalili narrates the enduring fascination of these classic paradoxes, he reveals their underlying logic. In doing so, he brings to life a select group of the most exciting concepts in human knowledge. Paradox is mind-expanding fun. |

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able Achilles Alice argue astronomers atoms barn behave Big Bang billion birthday block universe cards chapter clocks coin course describe distance door Earth effect Einstein electron energy entropy example exist exoplanets fact fast future galaxies Grandfather Paradox gravity happen idea infinite journey known Laplace's demon Law of Thermodynamics laws of physics length light speed light-years logical look machine mathematical Maxwell's demon measure molecules Monty Hall Monty Hall Paradox motion moving never observer orbit parallel universe particles past physicists planets pole possible predict probability problem puzzle quantum mechanics quantum world Quantum Zeno Effect randomness resolve rocket running Schrödinger's Schrödinger's cat scientists Second Law signals simple slowing solar system space space-time spacecraft speed of light subatomic superposition switch telescopes Theory of Relativity tiny tion tortoise travel back waves Zeno Zeno's Zeno's paradoxes