- What is Entropy? (johncarlosbaez.wordpress.com)
It’s easy to wax poetic about entropy, but what is it? I claim it’s the amount of information we don’t know about a situation, which in principle we could learn. But how can we make this idea precise and quantitative? To focus the discussion I decided to tackle a specific puzzle: why does hydrogen gas at room temperature and pressure have an entropy corresponding to about 23 unknown bits of information per molecule?
- Douglas Adams (Wikipedia)
Douglas Noel Adams (11 March 1952 – 11 May 2001) was an English author, humourist, and screenwriter, best known as the creator of The Hitchhiker’s Guide to the Galaxy (HHGTTG). Originally a 1978 BBC radio comedy, The Hitchhiker’s Guide to the Galaxy developed into a “trilogy” of five books which sold more than 15 million copies in his lifetime. It was further developed into a television series, several stage plays, comics, a video game, and a 2005 feature film. Adams’s contribution to UK radio is commemorated in The Radio Academy’s Hall of Fame.