Visualizing General Relativity

 A brilliant video discussing how to use graphics to illustrate General Relativity. 

Brendan O'Neill on “lived” experience

 A very insightful essay.

QPQ Micro reviews, a bump

An old post I occasionally update, reviews of mysteries by Patrick Quentin aka Q. Patrick aka Jonathan Stagge. Updated today. 

Disinterpretation

 I learned a good neologism, disinterpretation, deliberate and hostile misinterpretation to score points. Here is a nice disassembly of a disinterpretation.

A simple but apparently controversial observation

 I can believe in fire without believing in phlogiston. 

Wesley Yang on Suess

 Spot on.

Cartan's Exterior Derivative d, motivated

 A key idea in differential geometry and topology is the exterior derivative d. Most presentations of d do a poor job motivating the definition. This video does an excellent job, in a discussion restricted to R^3.