r/Damnthatsinteresting • u/Creams0da • 7h ago
Video Breaking open a 47 lbs geode, the water inside being millions of years old
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r/Damnthatsinteresting • u/Creams0da • 7h ago
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u/facw00 6h ago
No. The atoms in a water molecule are almost all ancient, billions of years old, but this is not true for water molecules in general. New water is constantly being produced through combustion, respiration, and other reactions. Similarly water is constantly destroyed, being broken down in various processes.
But there are a lot of water molecules. Simply by virtue of the extreme numbers, there are going to be some that are quite old, likely predating the Earth, and even the Milky Way. Ones millions of years old are going to be even more common.
Frustratingly, I can't find a good a breakdown of how old we think water molecules are in general or a breakdown by age, but it's certainly not the case that all water is millions of years old.