PhysicsMathematics has a bad hair day Working with artist Edmund Harriss, mathematics writer Alex Bellos has uncovered a somewhat squidgy side to numbers Culture
TechnologySynthetic iris could let cameras react to light like our eyes do The iris in our eyes shrinks the pupil in bright light and enlarges it in the dark, and now an artificial version could do the same for both eyes and cameras ¿ìè¶ÌÊÓÆµ