this post was submitted on 05 May 2024
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So mag lev is very very cool, but I [certified idiot] can't help but wonder;
powerful magnetic trainmoving at very high velocities inside Earth'sMagnetosphere= ???like, if the maglev is Eastbound, moving with the spin of the earth, does it end up contributing to the field generated by the liquid iron flowing around the Earth's core? What if it's Wesbound, moving against the spin? Or going North/South, perpendicular to the liquid iron flow?
Magnetic force falls off very quickly with distance. The only reason magnetosphere is even detectable is because there's a phenomenally huge glob of molten iron at the core. The magnetic force from the rail is basically localized to the track.