A cesium atom in an atomic clock beats over nine billion times a second.
43
The average home creates more pollution than does the average car.
33
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
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
Nylon is made from coal and petroleum.
42
Out of all the senses, smell is most closely linked to memory.
146
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