November 10, 2016

Hunting submarines with magnets

SUBMARINES rely on stealth to do their jobs, whether that is sinking enemy ships or hiding nuclear-tipped missiles beneath the ocean. The traditional way of hunting […]
November 10, 2016

A bet about a cherished theory of physics may soon pay out

IN 1994, on a warm summer’s evening in Erice, in Sicily, in the midst of a pleasantly well-lubricated dinner, two physicists made a wager on the […]
November 2, 2016

Missile tracking

MANY anti-cancer drugs are packaged for delivery into tiny fatty envelopes called liposomes. Because tumour cells are bound more loosely than healthy cells, liposomes squeeze between […]
November 2, 2016

Depths of imagination

WIND farms and solar-energy plants have the advantage that their fuel is free, but the disadvantage that the availability of that fuel may change from minute […]