PhysicsOne step closer to a nuclear timekeeper If the tick of a super-precise nuclear clock drifts as time goes by, it will be following the predictions of string theory ¿ìè¶ÌÊÓÆµ
TechnologyOnline photo coincidences betray your friends Strong clues to users' social ties lurks in the metadata uploaded with photographs to Flickr ¿ìè¶ÌÊÓÆµ