Paradox: The Nine Greatest Enigmas in Physics

Synopsis

Jim al-khalili is about to untangle the world's greatest science conundrums. ___________how does the fact that it gets dark at night prove the universe must have started with a big bang? Where are all the aliens? Why does the length of a piece of string vary depending on how fast it is moving? Our subject is 'perceived paradoxes' - questions or thought-experiments that on first encounter seem impossible to answer, but which science has been able to solve.