资讯

The bald eagle usually makes a series of high-pitched whistling noises. One of their calls even kind of sounds like laughter. Someone in Hollywood decided their natural sounds weren’t dramatic ...
There, a 10-mile (16 km) rail can be used to accelerate the hardware in need of testing to incredible speeds. In the case of the Red Hawk ejection system test, that speed would be 200 mph (321 kph).
Scientists recorded the popping noises that plants make in response to stresses like dehydration or a cut. By Darren Incorvaia Humans have glorious ways of vocalizing discontent: We grumble ...