In zero gravity, a candle's flame is round and blue.
16
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
Scientists aren't sure what color dinosaurs were.
312
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
Your brain is 80% water.
525
According to studies, men change their minds two to three times more often than women.
72
Nearly 50% of the world's scientists are assigned to military projects.
71