Drawing spacetime diagrams with Diagrams

I wanted to use spacetime diagrams to explain the twin paradox from special relativity in a way different from most popular treatments. To do that, I needed to be able to draw spacetime diagrams, so obviously I added support to my site for doing Lorentz transformations with Diagrams.

I wanted to test that it works, and what better way to test it than with an article explaining spacetime diagrams? And that is exactly what I did.