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
Nylon is made from coal and petroleum.
42
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Billions of neutrinos pass unnoticed through your body every second.
6
Sound travels about 4 times faster in water than in air.
408
The bark of an older redwood tree is fireproof.
65
No matter how cold it gets, gasoline will not freeze.
107