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
Cold water weighs more than hot water.
93
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
A ball of glass will bounce higher than a ball made of rubber.
73
The sun is 330,330 times larger than the earth.
75
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65