Earth’s magnetic field changes 10 times faster than previously thought
Earth’s magnetic field can change 10 times faster than previously thought, according to new research, almost 100 times faster than current changes. UK scientists have simulated the history of the swirling flow of iron 1,740 miles below the planet’s surface, spanning the last 100,000 years. Motion of the liquid iron creates the electric currents that power the field, … Read more