Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
For every gallon of sea water, you get more than a quarter pound of salt.
45
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 cubic yard of air weighs about 2 pounds at sea level.
31
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5