In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
A cesium atom in an atomic clock beats over nine billion times a second.
43
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
No matter how cold it gets, gasoline will not freeze.
107
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
Research indicates that plants grow healthier when they are stroked.
173