Full story: Universe TodayUniverse Today wrote:If you were to take all of the water on Earth — all of the fresh water, sea water, ground water, water vapor and water inside our bodies — take all of it and somehow collect it into a single, giant sphere of liquid, how big do you think it would be?
According to the U. S. Geological Survey, it would make a ball 860 miles (1,385 km) in diameter, about as wide edge-to-edge as the distance between Salt Lake City to Topeka, Kansas. That’s it. Take all the water on Earth and you’d have a blue sphere less than a third the size of the Moon.
Earth has less water than you think
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Grahame
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Earth has less water than you think
Grahame
The trouble with having an open mind, of course, is that people will insist on coming along and trying to put things in it - Terry Pratchett.
The trouble with having an open mind, of course, is that people will insist on coming along and trying to put things in it - Terry Pratchett.
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Grahame
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Re: Earth has less water than you think
Not sure how relevant this study is now, with the discovery of ringwoodite in the mantle, which is estimated to hold something like 3x the amount of water in the Earth's oceans. Related thread here.
Grahame
The trouble with having an open mind, of course, is that people will insist on coming along and trying to put things in it - Terry Pratchett.
The trouble with having an open mind, of course, is that people will insist on coming along and trying to put things in it - Terry Pratchett.