Science & Health
A jet stream within the Earths molten iron core has been discovered by scientists using the latest satellite data that helps create an X-ray view of the planet. Because of the cores location under 3,000 kilometres of rock, for many years scientists have studied the Earths core by measuring the planets magnetic field – one of the few options available.The first clip shows the evolution of the magnetic field at the edge of the Earths core from 1999-2016, with the second showing changes in magnetic field at the edge of the Earths core 1590-1990.
Dec 19, 2016
Henry Heimlich, creator of the Heimlich manoeuvre dies aged 96; here's a step-by-step guide to the life-saving move