Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
The average home creates more pollution than does the average car.
33
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39