From my understanding when a magnetic field passes through a coil it generates a current. What prevents us from being able to create a coil that can harness earths magnetic field to generate a current/electricity? Would it need to be huge? Is the earths magnetic field to low? Idk I’ve been thinking about it a lot recently and I just don’t understand why it wouldn’t work.
In: Planetary Science
because it doesnt move relative to us (well, not enough at any rates).
Magnets dont make electricity. MOVING magnets make electricity.
Now, this all changes for an object in orbit, for an object in orbit it IS possible to harvest some energy, but thats for orbital objects, so not generally relevant. https://pwg.gsfc.nasa.gov/Education/wtether.html
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