One Two Three . . . Infinity: Facts and Speculations of Science - Chapter XI: The Days of Creation Summary & Analysis

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Chapter XI: The Days of Creation Summary and Analysis

The Birth of Planets

Although there is solid ground on earth, it is just a relatively thin layer over a molten earth - the way the planet began. The temperature of the earth must reach the melting point of rocks (between 1200 and 1800 degrees Celsius) at a depth of only 50 km beneath the earth's surface. It is estimated that 97 percent of the earth's body must be in a molten state. The earth is still in a cooling state which it is estimated began several billion years ago.

In 1749 the French naturalist George-Louis Leclerc, opined that the planetary system resulted from a collision of a comet with the sun. A short time later, German philosopher Immanuel Kant disagreed feeling that the planetary system developed without any intervention by another celestial body; that the...

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