MTL-style circuit simulator
Today we learn a production Haskell pattern for preventing the wrong kinds of side effects.
MTL-style circuit simulator
After the first attempt at making a very side-effectful circuit simulator, and then an ambitious attempt at making it pure, I was reminded of a middle ground, using a pattern common in production Haskell code. It is called MTL-style effects.
Full article (2–6 minute read): MTL-style circuit simulator
Flashcard of the week
Physics time!
In an inelastic collision, is momentum or kinetic energy conserved?
Every now and then I get a sense that I should understand basic physics better, so I do a little reading and add a few flashcards, then stop reading. But this is one of those fundamental-knowledge questions I think are very valuable.
Momentum is always conserved (but when a collision is inelastic, kinetic energy is lost to deformation, heat, etc.)
Knowing that momentum is always conserved is easy and important, but remembering that when asked a question with difficult words like "inelastic collision" and "kinetic energy" is another thing!
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