Sound travels about 4 times faster in water than in air.
408
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
For every gallon of sea water, you get more than a quarter pound of salt.
45
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12
Aluminum used to be more valuable than gold!
84
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
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
Cold water weighs more than hot water.
93