We derive our primary estimate of the temperature of the deep earth from the melting behavior of iron at ultrahigh pressures. We know that the earth's core depths from 2,886 kilometers to the center at 6,371 kilometers (1,794 to 3,960 miles), is predominantly iron, with some contaminants.
Greater Cleveland-Akron ranks 16th for population, largest metro area in Ohio. CLEVELAND, Ohio - Although the eight-county Cleveland-Akron metro area lost an estimated 54,000 people from 2000 through 2009, it is still the largest metro area in Ohio, and the 16th largest nationally. Here are the biggest combined metropolitan areas in Ohio, along with their national ranks and populations. 16: Cleveland/Akron/Elyria, 2,891,988
Cincinnati is a city in the U.S. state of Ohio and seat of Hamilton County. Settled 1788, the city was located at the north side of the confluence of the Licking River to the Ohio. The city drives the CincinnatiâMiddletownâWilmington combined statistical area, which had a population of 2,172,191 in the 2010 census. With a population of 298,800, Cincinnati holds the third-biggest city proper in Ohio and the 65th-biggest in the United States. In 2016 it was said to have the fastest growing ...