The smell of freshly cut grass is actually a plant distress call.
31
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Nearly 50% of the world's scientists are assigned to military projects.
71
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Nylon is made from coal and petroleum.
42