Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
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
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
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
Out of all the senses, smell is most closely linked to memory.
146
For every gallon of sea water, you get more than a quarter pound of salt.
45
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65