A cubic yard of air weighs about 2 pounds at sea level.
31
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Nearly 50% of the world's scientists are assigned to military projects.
71
Out of all the senses, smell is most closely linked to memory.
146
One third of the electricity produced on earth is used to power electric light bulbs!
75
Research indicates that plants grow healthier when they are stroked.
173
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
Sound travels fifteen times faster through steel than through air.
134