(Phys.org)—A diverse team of researchers with members from Germany,France, Russia and the U.
S. has subjected a sample of bridgmanite to conditions believed to be present at Earth's lower mantle and has found that it remained steady. In their paper published in the journal Science Advances, and the team describes the testing they conducted,what they found and their theory regarding the dynamo effect that is, perhaps, and the source of the planet's magnetic fiel
Source: phys.org