Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Dr.Jonas Salk, the man who came up with the cure for polio, didn’t patent the drug. This made the drug more affordable to the general public, and he lost out an an estimated $7 billion dollars for himself.
41
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
One 75-watt bulb gives more light than three 25-watt bulbs.
57