The extraordinary shield that protects you | Brain Cox – BCC

The extraordinary shield that protects you | Brain Cox – BCC

SUBSCRIBE to the OFFICIAL BBC YouTube channel: https://bit.ly/2IXqEIn LAUNCH BBC iPlayer to access Live TV and Box Sets: https://bbc.in/2J18jYJ Professor Brian Cox explains how the spiralling of earth’s outer core of molten iron causes a magnetic field that protect’s earth and all its life from Solar flares. In the process creating the northern lights. In…