Chemistry

The fundamental purpose of science is to view the world from a different perspective. In the age of modern science, however, in which each academic discipline represents a world in itself, this is hard to remember. The field of ‘tribology’ would appear to be a perfect example. But such opacity is merely a front for the study of friction. And, according to Jennifer R. Vail, friction is ‘the unsung hero of the material world’. Why? Because ‘the way we experience the world, whether through greater efficiency, flight or space exploration, has been shaped by our understanding of friction’. Indeed, ‘our relationship with friction dates back to one of humanity’s greatest

Alchemy, astrology and medicine (before the triumph of germ theory): three worthless intellectual systems which provided a good living for many into the 18th century and even beyond. Alchemy turned into chemistry; astrology was divorced by astronomy; and medicine (which might have become Pasteurism or Listerism) somehow kept its old name while abandoning all its old therapies. There have always been people with the good sense to say that alchemists and astrologers were charlatans, and doctors were more likely to kill you than cure you, but few listened. After all, all three could claim to be ancient, respectable forms of learning. And all three were too good to be true.