Explore hands-on electromagnetic induction demos based on Faraday’s Law. See how changing magnetic flux induces emf and current, and learn how coil turns, area, speed, and magnetic field strength ...

All celestial bodies—planets, suns, even entire galaxies—produce magnetic fields, affecting such cosmic processes as the ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Using 11 years of magnetic field measurements from the ...