Your brain is 80% water.
525
Pure water (H2O) does not conduct electricity on its own.
46
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
A cubic yard of air weighs about 2 pounds at sea level.
31
One 75-watt bulb gives more light than three 25-watt bulbs.
57
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
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