What on earth is Bill Bryson doing writing a book of popular science--A Short History of Almost Everything? Largely, it appears, because this inquisitive, much-travelled writer realised, while flying over the Pacific, that he was entirely ignorant of the processes that created, populated and continue to maintain the vast body of water beneath him. In fact, it dawned on him that "I didn't know the first thing about the only planet I was ever going to live on". The questions multiplied: What is a quark? How can anybody know how much the Earth weighs? How can astrophysicists (or whoever) claim to describe what happened in the first gazillionth of a nanosecond after the Big Bang? Why can't earthquakes be predicted? What makes evolution more plausible than any other theory? In the end, all these boiled down to a single question--how do scientists do science? To this subject Bryson devoted three years of his life, reading books and journals and pestering the people who know (or at least ... read more