What part of the earth is water? Detailed answer

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What part of the earth is water? Detailed answer

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What part of the earth is water?

Even though seven-tenths of the earth's surface is covered with water, in the entire mass of the planet, water makes up a little less than one-fiftieth of a percent.

The earth is heavy and weighs 6 million billion billion kilograms. Half of this weight is contained in its lower mantle - a massive semi-molten layer that begins at a depth of 660 km from the earth's crust. Even on the watery crust of the Earth, the mass of land is forty times greater than the mass of all its oceans.

In 2002, the journal Science published the results of a Japanese experiment that suggests that five times more water is dissolved in the Earth's lower mantle than is sloshing on the surface.

Using high pressure (200 kg/cm) and temperature (1600°C), the Japanese created four mineral compounds similar to those found in the lower mantle. After that, they were placed in water and measured how much these minerals absorbed.

If scientists are right, then the water fraction of our world will have to be adjusted upwards - up to 0,1%.

Author: John Lloyd, John Mitchinson

Random interesting fact from the Great Encyclopedia:

How did the concept of Santa Claus come about?

It even seems indecent to talk about some reliable facts from the life of Santa Claus. The custom of giving gifts goes back to the ancient Romans. As you remember from the Bible, one wise man brought gifts to Jesus Christ on his 12th birthday. And now in some countries of Northern Europe, children do not receive gifts on the day of the Nativity of Christ, but after 12 days. In some Nordic countries, gifts are exchanged almost three weeks before Christmas.

The reason here is this. It was assumed that Saint Nicholas brings gifts on his annual holiday - December 6th. Saint Nicholas was a bishop, lived in the XNUMXth century, and was considered the best friend of children. Therefore, in Holland, Belgium, Switzerland, in some lands of Germany, in Austria, St. Nicholas comes every year with gifts for good children. The Danes called Saint Nicholas "San Nicholas" or "St. Claus", and later also "Santa Claus".

However, in these countries, the day of the arrival of Santa Claus has shifted to Christmas Eve. Today, Santa's annual red costume, reindeer and his home at the North Pole have become part of the tradition.

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