Technology Shape-shifting lens mimics human eye SOMETIMES all it takes is a quick hug, and everything looks different. Now a shape-shifting lens has been developed that alters its focal length when squeezed by an artificial muscle, rather like the lens in a human eye. The muscle, a ring of polymer gel, expands and contracts in response to environmental changes, eliminating the … News
Life In search of the big picture THERE is nothing new about scientists trying to understand art. The great German physicist Hermann von Helmholtz lectured on the relationship between painting and optics in the 1870s and encouraged physiologists to contribute to the theory of art. Plenty of scientists since have made similar forays. Yet there is a dazzling boldness in the ideas … Opinion
Earth Catch the fog to grow a forest When Spanish sailors landed on the Canary Island of El Hierro in the 15th century they were amazed to find an aboriginal population with extensive agriculture, which they had somehow managed to sustain with virtually no rainfall. Legend has it that the Guanche people derived all their water from a single large tree, which stripped … Features
Science stepping into the limelight AT FIRST glance, science and theatre make unlikely bedfellows, but you don't need to look far to see that they've been making a good go of it recently. Consider the international popularity of plays such as Michael Frayn's Copenhagen , Tom Stoppard's Arcadia and Terry Johnson's Insignificance , all of which explore science themes in … Books & Arts
Feedback Noisy and obnoxious DON'T you get furious when obnoxious adverts keep popping up on a website you have visited? A middle-aged colleague recently encountered one on the site of, would you believe it, The New York Times . Out of the blue, the advert started warning him about sexual inadequacies – and it did so … Regulars