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
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Pure water (H2O) does not conduct electricity on its own.
46
There is a surgical implant being developed that will give you an orgasm at the touch of a button.
20
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18