Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
In zero gravity, a candle's flame is round and blue.
16
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61