One person in two billion will live to be 116 or older.
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If you yelled for 8 years, 7 months and 6 days, you would have produced enough sound energy to heat one cup of coffee.
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A snowflake can take up to a hour to fall from the cloud to the surface of the Earth.

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Sometimes I think we're alone. Sometimes I think we're not. In either case, the prospect is staggering!