Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
In zero gravity, a candle's flame is round and blue.
16
Scientists aren't sure what color dinosaurs were.
312
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
Iron weighs more after it rusts.
16