The cat brain weighs about 30g.
167
Fidgeting can burn about 350 calories a day.
201
A million dollars weighs about a metric ton. Hence the expression "a ton of money."
66
You burn more calories sleeping than you do watching television.
348
A hummingbird weighs less than a penny.
1k
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
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