I mostly write introductions to things I find interesting, for example
- Feynman's vector calculus trick — a less-known technique in vector calculus which lets you treat the derivative operator like any other vector, and so apply standard identities to it.
- The geometric interpretation of entropy measures the 'volume' occupied by a random variable.
- Superdense coding uses entanglement to transmit two classical bits of information in a single qubit.
See posts for a list of all articles.