Something big happened this weekend. Everyone is talking about it. Many are feeling a new sense of hope.
That's right: I finished writing my new book "What is Entropy?" It's just 120 pages long. It has a lot of sections, mostly one page each, each based on a tweet. This is just a draft, and I'm still fixing typos and other mistakes. So grab a copy - and if you catch errors, please let me know, either here or on my blog!
It is not a pop book: it's an introduction that assumes you know calculus. But it's about a lot of big, bold concepts, and I try to really get to the bottom of them:
• information
• Shannon entropy and Gibbs entropy
• the principle of maximum entropy
• the Boltzmann distribution
• temperature and coolness
• the relation between entropy, expected energy and temperature
• the equipartition theorem
• the partition function
• the relation between entropy, free energy and expected energy
• the entropy of a classical harmonic oscillator
• the entropy of a classical particle in a box
• the entropy of a classical ideal gas
I learned a lot by trying to explain in words what people often say only with equations.
https://johncarlosbaez.wordpress.com/2024/07/20/what-is-entropy/
I operate by Crocker's rules[1].