1
Experiments on a $50 DIY air purifier that takes 30s to assemble
You can make a DIY air purifier in 30s. To test if it works, I generated smoke, and measured how well it removes tiny particles.
Dynomight
science and existential angst
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2
Making the Monty Hall problem weirder but obvious
It’s this simple: Do you want what’s behind one door or the other nine?
3
Sales tax creates more unnecessary pain than value added tax
Explains through a model of selling coconuts while value added taxes distort the economy less than sales taxes.