A hummingbird weighs less than a penny.
1k
You burn 26 calories in a one minute kiss.
605
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 neutron star (what remains after a Super Nova) is so dense that a portion of it the size of a sugar cube would weigh as much as all of humanity, or more than all the cars in the United States.
5
You burn more calories sleeping than you do watching television.
348
Sex burns about 360 calories per hour.
860
The average person's skin weighs twice as much as their brain.
131
A million dollars weighs about a metric ton. Hence the expression "a ton of money."
66