The fog clears

摘要

A golfer faced with the problem of hitting a ball out of the woods after an errant shot sometimes makes a brave choice: she aims straight for the trees, swinging the club as hard as possible in the hope that the ball will bounce off the trees and miraculously emerge from the woods. On page 232 of this issue, Bertolotti et al.1 describe a technique for imaging objects through light-scattering media, such as fog and human tissue, that overcomes a challenge that is in some ways similar to this one.