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0 pointstomsto2y ago0 comments

Thanks. I would still be curious to know how the strength of an artificial magnetic field at a range of say 10 km compares to the order of magnitude of local variations they are talking about in the earth’s magnetic field.

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2 comments · 2 top-level

oldbbsnickname2y ago

Make some assumptions, find the relevant equations, and plug in the numbers.

https://en.wikipedia.org/wiki/Magnetic_field

eternityforest2y ago

IIRC I think there was a telephone system with giant magnetic coils that went a quarter mile, but maybe I read a blog wrong or something.

In any case it wouldn't be as portable and would make you rather easy to detect I would imagine, if you wanted to cover a large area.

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