Interior Of The Earth Wikipedia

It was first published in french in 1864 then reissued in 1867 in a revised and expanded edition.

Interior of the earth wikipedia. The radiogenic heat produced by the radioactive decay of isotopes in the mantle and crust and the primordial heat left over from the formation of earth. The shape of the earth is an oblate spheroid because it is slightly flattened at the poles and bulging at the equator. About 74 of the surface of earth is covered by liquid or frozen water.

The earth has an outer solid layer called the crust a highly viscous layer called the mantle a liquid layer that is the outer part of the core called the outer core and a solid center called the inner core. The flow of heat from earth s interior to the surface is estimated at 47 2 terawatts tw and comes from two main sources in roughly equal amounts. The internal structure of earth is layered in spherical shells.

Earth s gravity interacts with other objects in space especially the sun and the moon which is earth s only natural satellite earth orbits around the sun in about 365 25 days. Earth s internal heat budget is fundamental to the thermal history of the earth. Because of this people sometimes call it the blue planet.

An outer silicate solid crust a highly viscous asthenosphere and mantle a liquid outer core that is much less viscous than the mantle and a solid inner core. Earth is the third planet from the sun and the only astronomical object known to harbor life according to radiometric dating estimation and other evidence earth formed over 4 5 billion years ago. Earth goes around the sun once one year for every 365 1 4 times it turns around one day.

Professor otto lidenbrock is the tale s central figure an eccentric german scientist who believes there are volcanic tubes that reach to the very center of the earth. Earth is the only planet in our solar system that has a large amount of liquid water.