Where on earth is North? - Science weekly podcast via The Guardian
The north magnetic pole is moving, fast. So quickly in fact, that scientists 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 to Dr Ciaran Beggan of the British Geographical 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 FRIN to talk us through the history of how humans through the ages navigated on the seas.
Image Credit: Mansell./Time & life Pictures/ Getty Images
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