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
Most dust particles in your house come from dead skin.
48
Pumice is the only rock that floats on water.
14
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Research indicates that plants grow healthier when they are stroked.
173
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304