Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Diamonds can be shattered with a hammer.
-104
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
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