Most dust particles in your house are made from dead skin!
67
Iron weighs more after it rusts.
68
One third of the electricity produced on earth is used to power electric light bulbs!
75
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55