Secrets of the Earth — Season 1, Episode 5: Magnetic Shield
Documentary • 21 min • 2 seasons, 17 episodes • ★ 5.3/10
Episode synopsis
A metallic core at the center of the Earth turns the planet into a magnet, generating a field that protects life on the surface from cosmic radiation.
About Secrets of the Earth
Computer graphics, visual analogies and a recurring cast of expert scientists combine to reveal new aspects of the world you think you know, from canyons of gravity that warp space and time to rain triggered by cosmic rays.