Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The average temperature at 40,000 feet above sea level is -60 F.
56
Pumice is the only rock that floats on water.
14
4.5 pounds of sunlight strike the Earth each day.
27
Pure water (H2O) does not conduct electricity on its own.
46
One third of the electricity produced on earth is used to power electric light bulbs!
75
Cold water weighs more than hot water.
93