Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
A cesium atom in an atomic clock beats over nine billion times a second.
43
Pure water (H2O) does not conduct electricity on its own.
46
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Out of all the senses, smell is most closely linked to memory.
146
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108