Scientists aren't sure what color dinosaurs were.
312
Aluminum used to be more valuable than gold!
84
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Hot water can freeze faster than cold water.
181
The left ear is more responsive to words of love and emotion whispered into it than the right.
40