The 1 yen coin can be used as a weight, because it weighs exactly one gram. Also, it can float on water.
19
The average person's skin weighs twice as much as their brain.
131
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
The earth is approx. 6,588,000,000,000,000,000 tons.
175
By weight, Bone is five times stronger than steel.
417
One human hair can support 3 ounces.
191
Fidgeting can burn about 350 calories a day.
201
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