Indoor pollution is 10 times more toxic than outdoor pollution.
62
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Research indicates that plants grow healthier when they are stroked.
173
Out of all the senses, smell is most closely linked to memory.
146
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Iron weighs more after it rusts.
68