Entropy keeps the arrow of time moving; today is less ordered than yesterday, and this is certain. If we extrapolate this concept backwards, through our scientific narrative to the origins of the universe, then we must postdict a universe that was once ordered only through its lack of movement, which means it was frozen. But even then, as Galileo once said of the Earth, eppur si muove, but it does move. And if it moves, it creates heat, and understanding that creates a more coherent scientific narrative.
Blog - physicsworld com physicsworld.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from physicsworld.com Daily Mail and Mail on Sunday newspapers.
You’re reading Age of Invention, my newsletter on the causes of the British Industrial Revolution and the history of innovation. This edition went out to over 12,200 subscribers. If you’ve just been forwarded this, you can sign up here: Previously, on