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
Each day, up to 150 species of life become extinct.
-23
If the chemical sodium is dropped into water it will immediately and violently explode.
67
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0