Skip to main content

Podcast: Journey to the Center of the Earth

What do earthquakes, the moon, and the earth’s magnetic field have in common? They’re all connected to the iron core deep inside our planet.

On this week's podcast, join me on a journey to the center of the earth. First, Planetary Science Professor Raymond Jeanloz from the University of California Berkeley will guide us through the iron catastrophe, the event that formed the earth’s core. Surprisingly, it has a lot of do with the planetary impact that chipped the moon from early earth.

A simulation of the magnetic field created by liquid convection in the earth's core.
Image Credit: Dr. Gary A. Glatzmaier/Los Alamos National Laboratory/U.S. Department of Energy.

Then, Professor Jennifer Jackson at Caltech’s Seismological Laboratory will tell us how scientists study the core. Because the core is 4,000 miles down, and the deepest humans have drilled is only seven anda half miles, scientists use indirect methods to study the core. We’ll find out how studying the deep rumblings of earthquakes provides details about the material that makes up the core and how scientist sare recreating more than 3.6 million atmospheres of pressure in the lab.

Finally, Jeanloz will hint at happenings in the core that might flip our world upside down.

-Podcast and post by Jenna Bilbrey


  1. The solar radiation convert into heat.

  2. Solar radiation convert into electric current through earth 's poles. Due to this current the core of earth is becoming hot.

  3. Wonderful idea to convert solar radiation into electric current.

  4. Information are more innovative and nice to read it...limahotelbooking

  5. What a good suggestion posted by the peoples..915615


Post a Comment

Popular Posts

How 4,000 Physicists Gave a Vegas Casino its Worst Week Ever

What happens when several thousand distinguished physicists, researchers, and students descend on the nation’s gambling capital for a conference? The answer is "a bad week for the casino"—but you'd never guess why.

Ask a Physicist: Phone Flash Sharpie Shock!

Lexie and Xavier, from Orlando, FL want to know: "What's going on in this video ? Our science teacher claims that the pain comes from a small electrical shock, but we believe that this is due to the absorption of light. Please help us resolve this dispute!"

The Science of Ice Cream: Part One

Even though it's been a warm couple of months already, it's officially summer. A delicious, science-filled way to beat the heat? Making homemade ice cream. (We've since updated this article to include the science behind vegan ice cream. To learn more about ice cream science, check out The Science of Ice Cream, Redux ) Image Credit: St0rmz via Flickr Over at Physics@Home there's an easy recipe for homemade ice cream. But what kind of milk should you use to make ice cream? And do you really need to chill the ice cream base before making it? Why do ice cream recipes always call for salt on ice?