Where on earth is North? - Science Weekly podcast

Earth ’s north magnetic pole wandering so quickly in recent decades that this week, scientists decided to update the World Magnetic Model, which underlies navigation for ships and planes today. Ian Sample looks at our relationship with the magnetic north.The north magnetic pole is moving, fast. So quickly in fact, thatscientists decided to release an update of where magnetic north really is, nearly a year ahead of their usual five-year schedule.This week, Ian Sample talks toDr Ciaran Beggan of the British Geological Survey about why he and a team of scientists track the north magnetic pole and what its rapidly changing trajectory is telling us. He then welcomes Dr John Blake to talk us through the history of how humans through the ages navigated on the seas.Continue reading...

Source: Guardian Unlimited Science - February 8, 2019 Category: Science Authors: Presented by Ian Sample and produced by Danielle Stephens Tags: Science Source Type: news