Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
One barrel of petroleum holds 42 gallons.
20
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
If the chemical sodium is dropped into water it will immediately and violently explode.
67
The smell of freshly cut grass is actually a plant distress call.
31