Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Aluminum used to be more valuable than gold!
84
Nearly 50% of the world's scientists are assigned to military projects.
71
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Cold water weighs more than hot water.
93