Brass doorknobs automatically disinfect themselves in about 8 hours.
18
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
One third of the electricity produced on earth is used to power electric light bulbs!
75
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Your brain is 80% water.
525
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304