Aluminum used to be more valuable than gold!
84
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
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
The bark of an older redwood tree is fireproof.
65
A cubic yard of air weighs about 2 pounds at sea level.
31
The sun is 330,330 times larger than the earth.
75
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
One third of the electricity produced on earth is used to power electric light bulbs!
75