Eighteen bodies have been recovered from the Potomac River following the collision of a passenger plane and an Army Blackhawk helicopter near the Reagan National Airport here on Wednesday, local media ...
BEIJING, Jan. 29 (Xinhua) -- The average review time for invention patents in China has been reduced to 15.5 months, according to the China National Intellectual Property Administration (CNIPA). The ...
Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient world slept only 6.5 hours a night.