The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
In zero gravity, a candle's flame is round and blue.
16
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
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
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Aluminum used to be more valuable than gold!
84
One barrel of petroleum holds 42 gallons.
20