posted on May, 8 2012 @ 04:04 PM
Stop speculating about what it may represent. They flat out TELL you what it is intended to represent. Please read again:
Left: All the water in the world (1.4087 billion cubic kilometres of it) including sea water, ice, lakes, rivers, ground water, clouds, etc.
Right: All the air in the atmosphere (5140 trillion tonnes of it) gathered into a ball at sea-level density. Shown on the same scale as the
Now whether or not it's accurate is up for debate, but the number is obviously based on something
, and is quite likely "in the ball park" as
They've got 3d topographical mapping of the entire planet, so it shouldn't be too hard to get at least close
to what they're claiming.
My 5th grade teacher drew an arc on the chalkboard with a particular length of string one day. It was large, taking up at least 1/2 the chalkboard.
This was an approximate scale representation of the mantle thickness relative to the size of the earth. He then removed the tiniest bit of width from
a portion of the arc and explained that it represented the average ocean depth. He then drew a tiny line, barely visible, and told us that was about
the scale of the highest mountain.
As big and mighty as the oceans may seem, they are still just a skim-coat relative to the actual size of the planet.