Almost fifty years after he first crossed the small screen, Doctor Who remains a science fiction touchstone. His exploits are thrilling, his world is mind-boggling, and that time travel machine-known as the Tardis-is almost certainly an old-fashioned blue police box, once commonly found in London. Paul Parsons's plain-English account of the real science behind the fantastic universe portrayed in the Doctor Who television series provides answers to such burning questions as whether a sonic screwdriver is any use for putting up a shelf, how Cybermen make little Cybermen, where the toilets are in the Tardis, and much more. Taking the show as a starting point-episode-by-episode in some cases-Parsons dissects its scientific concepts.In addition to explaining why time travel is possible and just how that blue police box works, Parsons * discusses who the Time Lords are and how we may one day...
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