Personal Liberty Digest™ will be upgraded this weekend to reflect a dynamic new look and mobile-friendly viewing to enhance your experience! Plus, we'll be providing even more of the compelling content you've come to expect, delivered in a whole new way!

  Comments Subscribe to Personal Liberty News Feed Subscribe to Personal Liberty
 

Earth’s Core Hotter Than Thought, Hot As Sun’s Surface

PARIS (UPI) — New measurements suggest the Earth’s inner core is far hotter than previously thought, at 10,8000 degrees F as hot as the sun’s surface, French scientists say.

The Earth’s core is solid, a crystalline form of iron, but the temperature at which that crystal can form has long been debated.

New experiments used X-rays to measure tiny samples of iron at extraordinary pressures in laboratories to analyze how the iron crystals form and melt.

The first such measurements in the early 1990s of iron’s “melting curves” — from which the temperature of Earth’s core can be estimated — suggested a core temperature of about 9,000 degrees Fahrenheit.

Scientists at the French research agency CEA used the European Synchrotron Radiation Facility, the source of some of the world’s most intense X-rays, to re-analyze the measurements.

“It was just the beginning of these kinds of measurements so they made a first estimate … to constrain the temperature inside the Earth,” CEA researcher Agnes Dewaele said of the earlier experiments.

“Other people made other measurements and calculations with computers and nothing was in agreement. It was not good for our field that we didn’t agree with each other,” she told BBC News.

“We have to give answers to geophysicists, seismologists, geodynamicists — they need some data to feed their computer models.”

The researchers’ new experiments yielded an estimated core temperature of about 10,800 degrees F, give or take 1,000 degrees, or about the same as the temperature of the sun’s surface.

More importantly, Dewaele said, “now everything agrees.”

UPI - United Press International, Inc.

Since 1907, United Press International (UPI) has been a leading provider of critical information to media outlets, businesses, governments and researchers worldwide.

Facebook Conversations

Join the Discussion:
View Comments to “Earth’s Core Hotter Than Thought, Hot As Sun’s Surface”

Comment Policy: We encourage an open discussion with a wide range of viewpoints, even extreme ones, but we will not tolerate racism, profanity or slanderous comments toward the author(s) or comment participants. Make your case passionately, but civilly. Please don't stoop to name calling. We use filters for spam protection. If your comment does not appear, it is likely because it violates the above policy or contains links or language typical of spam. We reserve the right to remove comments at our discretion.

Is there news related to personal liberty happening in your area? Contact us at newstips@personalliberty.com

  • http://www.facebook.com/people/David-Madewell/100000102216161 David Madewell

    ..

Bottom
close[X]

Sign Up For Personal Liberty Digest™!

PL Badge

Welcome to PersonalLiberty.com,
America's #1 Source for Libertarian News!

To join our group of freedom-loving individuals and to get alerts as well as late-breaking conservative news from Personal Liberty Digest™...

Privacy PolicyYou can opt out at any time. We protect your information like a mother hen. We will not sell or rent your email address to anyone for any reason.