Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Diamonds can be shattered with a hammer.
-104
Each day, up to 150 species of life become extinct.
-23
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Sound travels fifteen times faster through steel than through air.
134
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5