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
Most elephants weigh less than a blue whale's tongue.
442
The earth is approx. 6,588,000,000,000,000,000 tons.
175
The average person's skin weighs twice as much as their brain.
131
By weight, Bone is five times stronger than steel.
417
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
One human hair can support 3 ounces.
191