In a famous scene in X2 (of the first cinematic X-Men films), Magneto uses his magnetic powers to rip the iron out of somebody’s body, before going on a rampage using the iron like a bullet.
Of course, the movie goes to great pains to show that the reason Magneto is able to do this is because the security guard had been injected with iron beforehand. Nevertheless – as people have been asking on
First off, while we know blood contains iron, we also know that magnets can’t rip the iron from your blood. If it could, that would happen every time somebody stepped into an
Your blood is not ferromagnetic, or magnetic in the same way that people usually understand magnetism. However, it does have very weak magnetic properties.
Oxyhemoglobin is weakly
“The reason fMRI is able to detect [changes in the brain] is due to a fundamental difference in the paramagnetic properties of oxyHb and deoxyHb,”
“Deoxygenated haemoglobin is paramagnetic whereas oxygenated haemoglobin is not, and therefore the former will cause local dephasing of protons, and thus reduce the returned signal from the tissues in the immediate vicinity.”
As suggested on
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