Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
The bark of an older redwood tree is fireproof.
65
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
The storage capacity of human brain exceeds 4 Terrabytes.
140
The average temperature at 40,000 feet above sea level is -60 F.
56