Sound travels about 4 times faster in water than in air.
408
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
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
4.5 pounds of sunlight strike the Earth each day.
27
The storage capacity of human brain exceeds 4 Terrabytes.
140
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Iron weighs more after it rusts.
68