You burn 26 calories in a one minute kiss.
605
A hummingbird weighs less than a penny.
1k
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
The average person's skin weighs twice as much as their brain.
131
The adult human brain weighs about 3 pounds (1,300-1,400 g).
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The elephant brain weighs about 6,000g.
274
Sex burns about 360 calories per hour.
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