Sex burns about 360 calories per hour.
860
You burn 26 calories in a one minute kiss.
605
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 adult human brain weighs about 3 pounds (1,300-1,400 g).
99
You burn more calories sleeping than you do watching television.
348
The average person's skin weighs twice as much as their brain.
131
The earth is approx. 6,588,000,000,000,000,000 tons.
175