As Web communication shrinks, so do linksNEW YORK — On the short-messaging service Twitter, space is at a premium: You've got 140 characters to make your point, and you probably don't want to waste half of it on a super-sized link to your latest YouTube obsession.

LONDON - By using a new software, researchers from the Engineering and Physical Sciences Research Council (EPSRC) and the University of Edinburgh have been able to recreate a long forgotten musical instrument called the Lituus.