Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Hot water can freeze faster than cold water.
181
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
Nearly 50% of the world's scientists are assigned to military projects.
71
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
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