Visualization of WiFi strength using the Helmholtz equation

This kind of stuff melts my brain.

Physics in Scheme

So Leonard Susskind has written a course teaching the "theoretical minimum" of classical mechanics, and HNN, as usual, delivers all interesting related topics, including Gerald Sussman's MIT "Structure and Interpretation of Classical Mechanics", or: "Physics in Scheme", essentially, where the models used are expressed in Scheme and are entirely computable, directly. That's cool.