How much of the sun's radiation hits the earth? Detailed answer

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How much of the sun's radiation hits the earth? Detailed answer

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How much of the sun's radiation hits the earth?

A little less than half a billionth of solar radiation hits the Earth, but it is its energy that provides favorable conditions for life on our planet.

Although the globe has a hot core, the heat that each square meter of the Earth's surface receives from its interior is 25 times less than the heat received from the Sun.

If we remember that about 150 million kilometers separate us from our luminary, and its radiation is attenuated in proportion to the square of the distance, then one can only be amazed at how great the power of a thermonuclear reactor called the Sun is.

Author: Kondrashov A.P.

Random interesting fact from the Great Encyclopedia:

When did the first metal skates appear?

Already ancient people were fond of skating. They were made from the ribs or tubular bones of animals. The bone was sawn lengthwise, polished and holes were made so that it could be tied to the leg. Archaeologists have found such skates more than once during excavations.

Bone skates lasted a very long time. Shakespeare still found them in England, and in Norway and Iceland they rode bone skates even in the XNUMXth century. But at that time there were already other skates: they were made of wood, and upholstered with iron from below. And from the end of the XNUMXth - beginning of the XNUMXth century, all-metal skates began to be made in the Netherlands and England.

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