Fidgeting can burn about 350 calories a day.
201
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
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
You burn more calories sleeping than you do watching television.
348
By weight, Bone is five times stronger than steel.
417
Dieters who sleep more take off more fat that those who sleep less.
159
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