Most elephants weigh less than a blue whale's tongue.
442
By weight, Bone is five times stronger than steel.
417
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
The 1 yen coin can be used as a weight, because it weighs exactly one gram. Also, it can float on water.
19
You burn 26 calories in a one minute kiss.
605
A hummingbird weighs less than a penny.
1k
Fidgeting can burn about 350 calories a day.
201
You burn more calories sleeping than you do watching television.
348