A hummingbird weighs less than a penny.
1k
By weight, Bone is five times stronger than steel.
417
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
The earth is approx. 6,588,000,000,000,000,000 tons.
175
A million dollars weighs about a metric ton. Hence the expression "a ton of money."
66
One human hair can support 3 ounces.
191
The elephant brain weighs about 6,000g.
274