Sun Chest

Earth’s Core 1,000 Degrees Hotter Than Expected
By Elizabeth Howell, 2013

Earth’s internal engine is running about 1,000 degrees Celsius (about 1,800 degrees Fahrenheit) hotter than previously measured, providing a better explanation for how the planet generates a magnetic field, a new study has found.

A team of scientists has measured the melting point of iron at high precision in a laboratory, and then drew from that result to calculate the temperature at the boundary of Earth’s inner and outer core — now estimated at  6,000 C (about 10,800 F). That’s as hot as the surface of the sun.

The difference in temperature matters, because this explains how the Earth generates its magnetic field. The Earth has a solid inner core surrounded by a liquid outer core, which, in turn, has the solid, but flowing, mantle above it. There needs to be a 2,700-degree F (1,500 C) difference between the inner core and the mantle to spur “thermal movements” that — along with Earth’s spin — create the magnetic field.


Earth's layersEarth’s Core is Hotter Than the Sun

The Sun’s huge boiling convection cells, in the outer visible layer, called the photosphere, have a temperature of 5,500°C.

The Earth’s core temperature is about 6100ºC. The inner core, under huge pressure, is solid and may be a single immense iron crystal. The outer core is liquid, and probably acts as a dynamo creating our magnetic field.

But before you get the wrong impression, keep in mind that the core of the Sun is a broiling 15,000,000ºC. That’s enough to vaporize rocks in a comet that gets too close, and enough to give you a nasty burn 93,000,000 million miles away after just a few minutes exposure when you’re sun bathing.

Source: (Main source: Wikipedia)


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One thought on “Sun Chest

  1. At Dream State December 29, 2015 at 10:55 am Reply

    Science on 7M? Hmmm. This must be about aether.

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