For every gallon of sea water, you get more than a quarter pound of salt.
45
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Galalith is a type of plastic that can be made from milk. It is odourless, insoluble in water, biodegradable, anti-allergenic, antistatic, and virtually non-flammable.
1
Iron weighs more after it rusts.
68
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21