Solution to Feynman's reverse sprinkler puzzle also applies to "silly sprinklers"
Watering your lawn in the summer can be both pragmatic and fun with so-called “silly sprinklers,” designed to create amusing loops and spirals of water jets. And there’s some fascinating…
Look Closer: Pieter De Hooch’s Puzzle Box
Pieter de Hooch was a contemporary of Johannes Vermeer in the Dutch city of Delft for a time; they painted similar subjects, in similar costumes, engaged in similarly quotidian activities.…







