Every cramped air traveler may have the right to lean his seat back, but Ira Goldman sees airplane justice from another perspective that of the person behind and he's found a way to even the score.
Goldman invented the Knee Defender, a beeper-sized block of plastic that lets passengers prevent the seat in front of them from reclining.
The gadget, which went on sale about a month ago on the Internet for $10, has sparked heated debate in online chat rooms, and aviation officials worry about the disagreements that will be generated at 30,000 feet.
Using chopsticks may cause arthritis in the hand, U.S. researchers reported on Friday.
A study of more than 2,500 residents of Beijing found that osteoarthritis was more common in the hands used to operate chopsticks -- and in the fingers specifically stressed by chopstick use.
