r/askscience•
cycleburger

Is it possible to navigate without GPS and satellites using the earth's geomagnetic field instead (like birds do)?

Physics

I was reading about birds sense of Biomagnetism and was wondering myself if there was a way to use earth's magnetic field to navigate and determine latitude or even longitude. Now, I've heard about Compasses, but it's a little dated technology. Are there sensors around that can measure the geomagnetic field more accurately, making something like a satellite independent navigation system possible?

Posted Mar 22, 2019, 2:32 PM UTC

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