travelling

Travelling To The North Pole

Rock formation acts as a way to track the adjustments in the magnetic field. Lava flows and sediments record the state of the magnetic field, marking when they had been designed. Geologists can use the samples like pieces of a puzzle, reconstructing the history of the magnetic field. The record goes back millions of years, but it is the most clear when looking at the final reversal. The World Magnetic Model is updated every five years to account for shifts to the field and the last a single took location in 2015. However, in 2016, element of the magnetic field...