When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
4.5 pounds of sunlight strike the Earth each day.
27
Each day, up to 150 species of life become extinct.
-23
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
The average home creates more pollution than does the average car.
33
The storage capacity of human brain exceeds 4 Terrabytes.
140
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