The Doctor's Sonic Screwdriver is now a real thing

How many times in life have you come up against a problem — a locked door, a stuck vending machine, an army of killer robotic Santas — and wished you had the Doctor's sonic screwdriver on hand? A group of researchers has built their own sonic screwdriver, although it remains untested against the Dalek menace. » 4/19/12 3:00pm 4/19/12 3:00pm