Earth is surrounded by a magnetic field generated by electric currents from within the planet. Compasses take advantage of this field to identify north and serve as a navigational aid. But one social ...

How can a tiny magnet help you if you're lost in the woods? When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. If you're lost in the woods, your ...

August 28, 2015 Add as a preferred source on Google Add as a preferred source on Google If you don’t have a compass on hand and need to draw a large circle, you can turn a few scrap pieces into a beam ...