By weight, Bone is five times stronger than steel.
417
The cat brain weighs about 30g.
167
Most elephants weigh less than a blue whale's tongue.
442
Dieters who sleep more take off more fat that those who sleep less.
159
One human hair can support 3 ounces.
191
Sex burns about 360 calories per hour.
860
The Main Library at Indiana University sinks over an inch every year because when it was built, engineers failed to take into account the weight of all the books that would occupy the building.
240
A million dollars weighs about a metric ton. Hence the expression "a ton of money."
66