If the chemical sodium is dropped into water it will immediately and violently explode.
67
Your brain is 80% water.
525
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
One cubic foot of gold weighs more than 1,200 pounds!
78
Nearly 50% of the world's scientists are assigned to military projects.
71
Most dust particles in your house are made from dead skin!
67
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
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