A hummingbird weighs less than a penny.
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There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62
A million dollars weighs about a metric ton. Hence the expression "a ton of money."
66
The elephant brain weighs about 6,000g.
274
Fidgeting can burn about 350 calories a day.
201
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