The bark of an older redwood tree is fireproof.
65
The force of a suction cup is calculated using F=AP.
15
Each day, up to 150 species of life become extinct.
-23
For every gallon of sea water, you get more than a quarter pound of salt.
45
Sound travels fifteen times faster through steel than through air.
134
4.5 pounds of sunlight strike the Earth each day.
27
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
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