this post was submitted on 28 Dec 2023
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[–] Donkter@lemmy.world 12 points 1 year ago

I would guess speed of sound is the upper limit of what MRIs can accelerate small metal objects to. So it's easy shorthand for an author who didn't know anything about MRIs before writing the article to reference. obviously something so large and inside a human would not accelerate to those speeds.