Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
The inventor of the Super Soaker squirt gun was a NASA Scientist who also helped develop the Stealth Bomber and the Galileo mission to Jupiter.
7
Sound travels about 4 times faster in water than in air.
408
Indoor pollution is 10 times more toxic than outdoor pollution.
62
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
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
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18