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 average home creates more pollution than does the average car.
33
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
The storage capacity of human brain exceeds 4 Terrabytes.
140
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
A single speck of dust is half way in size between a subatomic particle and the Earth.
15