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 hummingbird weighs less than a penny.
1k
Dieters who sleep more take off more fat that those who sleep less.
159
The 1 yen coin can be used as a weight, because it weighs exactly one gram. Also, it can float on water.
19
The elephant brain weighs about 6,000g.
274
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Most elephants weigh less than a blue whale's tongue.
442
The earth is approx. 6,588,000,000,000,000,000 tons.
175