Iron weighs more after it rusts.
16
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
One third of the electricity produced on earth is used to power electric light bulbs!
75
Most dust particles in your house come from dead skin.
48
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
The average temperature at 40,000 feet above sea level is -60 F.
56
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3