Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Pumice is the only rock that floats on water.
14
Billions of neutrinos pass unnoticed through your body every second.
6
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
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Most dust particles in your house are made from dead skin!
67
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21