A hummingbird weighs less than a penny.
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Dolly Dimples, a 555 lbs. woman, lost 443 lbs in one year by eating nothing but baby food.
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Most elephants weigh less than a blue whale's tongue.
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The adult human brain weighs about 3 pounds (1,300-1,400 g).
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The elephant brain weighs about 6,000g.
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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.
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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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A million dollars weighs about a metric ton. Hence the expression "a ton of money."
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