Compass needles swerve Solar Storm
I've always wondered about this. Figured an expensive compass could detect solar magnetic interference. I read that a solar storm caused compass needles to swerve yesterday early. I know I had no response yesterday until nearly noon (MST). Then things were very good.
I built a device one time that uses a laser. You glue a small mirror to a magnet and hang this by a thread inside a closed jar. Then you bounce the laser off the mirror. Any small deviations will show.
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