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
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
A ball of glass will bounce higher than a ball made of rubber.
73
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Sound travels fifteen times faster through steel than through air.
134
In zero gravity, a candle's flame is round and blue.
16
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13