In zero gravity, a candle's flame is round and blue.
16
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Iron weighs more after it rusts.
16
A cubic yard of air weighs about 2 pounds at sea level.
31
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
A cesium atom in an atomic clock beats over nine billion times a second.
43
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51