Echoing Sherlock Holmes' famous dictum, John Gribbin tells us: 'Once you have eliminated the impossible, whatever is left, however improbable, is certainly possible, in the light of present scientific knowledge.' With that in mind, in his sequel to the hugely popular 'Six Impossible Things and Seven Pillars of Science', Gribbin turns his attention to some of the mind-bendingly improbable truths of science.