A single speck of dust is half way in size between a subatomic particle and the Earth.
15
The smell of freshly cut grass is actually a plant distress call.
31
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5
All Humans Are 99.9% Genetically Identical and 98.4% of human genes are the same as the genes of a chimpanzee.
51
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
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
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5