Sound travels fifteen times faster through steel than through air.
134
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
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
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38