Science of Doctor Who

"(W) Paul Parsons The Doctor's exploits are thrilling, his world mind-boggling. Paul Parsons's plain-English account of the real science behind the fantastic universe portrayed in Doctor Who 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, Parsons dissects its scientific concepts, From explaining why time travel is possible to the cosmology of the Whovian universe."