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If you're lost in the woods, your best chance of finding your way might be a tiny magnet. Originally published on May 11, 2018.

Waaaaay before Google Maps and GPS, people used

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How lodestone helped create the world's first

Earth and

Video 1 of the Everyday Physics topic:

... seeking instrument the

Have you ever wondered how explorers found their way before GPS? Or how a tiny needle always knows where North is?

Ever wondered why a

How to use a

A demonstration of the effect of placing a permanent magnet's north and South Pole close to a