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en.wikipedia.org/wiki/Inner_core

Earth's inner core is the innermost geologic layer of the Earth. It is primarily a solid ball with a radius of about 1,220 kilometres (760 miles), which is about 20% of the Earth's radius and 70% of the Moon's radius. There are no samples of the Earth’s core available for direct measurement, as there are for the Earth's mantle.

www.imdb.com/title/tt0074157

The main criticism of AT THE EARTH'S CORE is that it's cheap, the special effects are bad and so on and so forth. Yes, some of the special effects are painfully bad but what a lot of folks overlook about it is that it's actually quite fun, which is very important in my book.

www.youtube.com/watch?v=BsKyEckDRbo

The Year of Pluto - New Horizons Documentary Brings Humanity Closer to the Edge of the Solar System - Duration: 58:34. NASA 1,605,030 views

www.enn.com/articles/48675

​The old tales may be true: There is brimstone in the underworld, and lots of it. Brimstone, the biblical name for sulfur, is often found near hot springs and volcanic fissures on Earth’s surface (above). But scientists studying the formation of Earth’s core have shown that the ...

www.newser.com/story/202483/earths-core-has-its-own-core.html

Earth's Core Has Its Own Core Earthquake waves reveal mystery beneath us ... (An earlier study found that the core is as hot as the surface of the sun.) View 1 more image. My Take on This Story

en.wikipedia.org/wiki/At_the_Earth's_Core_(novel)

At the Earth's Core is a 1914 fantasy novel by American writer Edgar Rice Burroughs, the first in his series about the fictional "hollow earth" land of Pellucidar. It first appeared as a four-part serial in All-Story Weekly from April 4–25, 1914. It was first published in book form in hardcover by A. C. McClurg in July, 1922.

answers.yahoo.com/question/index?qid=20080412062818AA22eDR

The Earth's Core is hot primarily because the core is made up mainly of iron, and as it moves through the magnetic field generated by the sun, it creates electrical eddy currents to flow in the core. Eventually, over time, the currents cause the iron to heat up.

hypertextbook.com/facts/1999/PhillipChan.shtml

"Earth's core temperature is estimated at around 5000 to 7000 degrees Celsius." 5300–7300 K: No one can really explore the earths interior. Scientist obtain information about the characteristics of the earth's interior by studying earthquake records. Earthquake waves help scientists figure out the distances to each of the section of the earth ...

www.jiskha.com/search?query=What+is+the+distance+from+the...

What is the distance from the Earth's.. 24,274 results, page 3 Math Application. A space camera circles the Earth at a height of h miles above the surface. Suppose that d distance, IN MILES, on the surface of the Earth can be seen from the camera. (a) Find an equation that relates d and h. (b) If d is to be 3500 miles, how high must

www.wisegeek.com/what-is-the-earths-mantle.htm

The Earth's mantle is a roughly 1,800 mile (2,900 km) thick shell of compressed and heated rock, beginning below the Earth's crust (lithosphere), which extends 3.1 miles (5 km) below the ocean floor and 19 to 31 miles (30 to 50 km) below the continents.It makes up 70% of Earth's volume, in comparison to the Earth's crust, which makes up less than 1% of the total.