Tag: "magnetic reversals"

Not by Fire But by Ice

Most people are familiar with magnetic north because that is where compass needles actually point. It is not the same as the North Pole and, currently, magnetic north is close to Canada’s Ellesmere Island on the edge of the Arctic. The movement has been erratic since first located by scientists in 1831. In 1904, it began to shift northeastward at about nine miles per year.