May 13, 2012
All the water on Earth
Look at the graphic above.
The little blue sphere represents the entirety of our planet's water.
Wrote David Ponce on OhGizmo!, "We like to think of our planet as made up entirely of water. After all, over 70% of its surface is covered in water. But the truth is that there's comparatively very little of it. We're not saying there isn't much water. Just that if you put all the water (the oceans, the lakes, the water in the air and that frozen in ice and snow) in one place and compare it to the volume of the entire planet, it ain't much. As you can see in the image above, created by the US Geological Survey (USGS), all the earth's water would make up a ball with a diameter of 860 miles. The Earth itself in comparison has a diameter of about 7,900 miles. 860 miles isn’t much: it's the distance from Salt Lake City, Utah to Topeka, Kansas, and represents a volume of 332.5 million cubic miles."
"The USGS article that gave us the above picture also has a fascinating lists of water facts. Here's one: 'About 3,100 cubic miles (12,900 cubic kilometers) of water, mostly in the form of water vapor, is in the atmosphere at any one time. If it all fell as precipitation at once, the Earth would be covered with only about 1 inch of water.'"
Equally if not more profound is the graphic below,
in which the tiny blue dot on the far right represents our planet's available fresh water.
Oil becomes trivial when considered against these facts.
Graphics by Jack Cook of the Woods Hole Oceanographic Institution.
May 13, 2012 at 04:01 PM | Permalink
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The volume of a sphere was first calculated (or, recorded) by Archimedes. The representation shown is a correct calculation of the volume of H2O.
If the volume of water on the planet is at issue, perhaps a piece on the minuscule volume of our atmosphere is called for?
Posted by: 6.02*10^23 | May 14, 2012 5:02:44 PM
That is pure horseshit..........
Posted by: leo | May 14, 2012 8:17:20 AM
I think we're the ones getting yanked by the previous comment....
But, not that impressive considering how deep the oceans really are in context of how large the earth is.... or "all the world is biscuit shaped".
Posted by: Rocketboy | May 14, 2012 6:57:19 AM
This all sounds well, good and professional but I do not believe it to be true. I'm getting yanked here.
Posted by: friskypainter | May 13, 2012 11:46:26 PM
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