The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
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
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
One human hair can support 3 ounces.
191
The elephant brain weighs about 6,000g.
274
You burn more calories sleeping than you do watching television.
348
Sex burns about 360 calories per hour.
860
A hummingbird weighs less than a penny.
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