Venn Diagrams
Venn Diagrams X-rays, muons, ultraviolet radiation— X-rays can diagnose fractures in the skull; muons can map spaces inside the pyramids at Giza; ultraviolet radiation kills bacteria in well water—in a Venn diagram, circles overlap. An array of sharpened pencils in a cup; cars parked at a casino; along a trail, small puffballs—these clusters manifest chance; and, pondering three who