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[–]brandnewset0 points
2 points
2 points
(+2|-0)
ago
(edited ago)
Now to get the nano gold out of the ocean. Each liter of seawater contains, on average, about 13 billionths of a gram of gold. 20 million tonnes or so.
Compare to the gold on land:
The best estimate at the end of 2011 is that around 165,000 metric tons (or tonnes) have been mined in all of human history.
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[–] brandnewset 0 points 2 points 2 points (+2|-0) ago (edited ago)
Now to get the nano gold out of the ocean. Each liter of seawater contains, on average, about 13 billionths of a gram of gold. 20 million tonnes or so.
Compare to the gold on land:
The best estimate at the end of 2011 is that around 165,000 metric tons (or tonnes) have been mined in all of human history.