A hummingbird weighs less than a penny.
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By weight, Bone is five times stronger than steel.
417
The earth is approx. 6,588,000,000,000,000,000 tons.
175
The 1 yen coin can be used as a weight, because it weighs exactly one gram. Also, it can float on water.
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You burn 26 calories in a one minute kiss.
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Most elephants weigh less than a blue whale's tongue.
442
The cat brain weighs about 30g.
167
A million dollars weighs about a metric ton. Hence the expression "a ton of money."
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