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In a world where technology is increasingly taking over our everyday lives, there may come a point where compasses are an antiquated relic of human history.
Wait a second… that day is already here! Almost.
In practice, the principle is simple – just take a magnetic piece of metal, suspend it in a nearly frictionless environment, and allow it to align with the magnetic field of the earth.
Once it’s aligned, all you need to do is figure out which way is north, mark it red, and then you’ll be able to tell where all the other directions lie relatively speaking.
