Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
The storage capacity of human brain exceeds 4 Terrabytes.
140
Each day, up to 150 species of life become extinct.
-23
Aluminum used to be more valuable than gold!
84
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
The force of a suction cup is calculated using F=AP.
15
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Cold water weighs more than hot water.
93