Sex burns about 360 calories per hour.
860
By weight, Bone is five times stronger than steel.
417
A hummingbird weighs less than a penny.
1k
Dieters who sleep more take off more fat that those who sleep less.
159
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
Most elephants weigh less than a blue whale's tongue.
442
A million dollars weighs about a metric ton. Hence the expression "a ton of money."
66
You burn 26 calories in a one minute kiss.
605