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
Fidgeting can burn about 350 calories a day.
201
By weight, Bone is five times stronger than steel.
417
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Dolly Dimples, a 555 lbs. woman, lost 443 lbs in one year by eating nothing but baby food.
16
The cat brain weighs about 30g.
167
A hummingbird weighs less than a penny.
1k
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