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Magneto is way over-powered, even for a mutant. With the given relation between electricity and magnetism, what could be possible? here is already study work on biomagnetism, we know the nervous system is electric and the blood contains iron, so there is iron moving in an electric field. Assuming at least twice the iron content found in normal blood, and a change in physiology to have eel strength (500v DC or such) nervous system, how close could one get?

I did not tag this because I do not need a numeric answer, but I would like to see supporting details for any answer given.

EDIT: I am aiming for the ability to attract iron and repel magnets. Such an ability when used on iron could only attract, and you would need loadstone or something with fixed poles before you could get repulsion.

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  • $\begingroup$ For the future, hard-science answers don't necessarily have to be based on numbers at all, just firm, indisputable scientific principles and evidence. Also, here's a cool related article: io9.com/…. $\endgroup$ – HDE 226868 Aug 25 '15 at 21:59
  • $\begingroup$ Do you mean humans, or animals in general? $\endgroup$ – HDE 226868 Aug 25 '15 at 22:08
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    $\begingroup$ HDE you are everywhere on here. I am focusing on humans for this question. $\endgroup$ – DeveloperWeeks Aug 25 '15 at 22:17
  • $\begingroup$ @HDE226868 Your io9 link appears to be down already. $\endgroup$ – IchabodE Aug 25 '15 at 23:37
  • $\begingroup$ @MBurke That's . . . troubling. I'll see what I can do. Is this better? io9.com/…. Hm, no. From SE it doesn't work. $\endgroup$ – HDE 226868 Aug 25 '15 at 23:40
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Iron in blood and high voltage don't matter.

Magnetic field generation depends on current, not voltage. There is very little current flow in any animals, be it the nervous system or a defence mechanism. Electric eels produce very little current, despite a high voltage.

The iron in blood is not magnetic (nor is it even ferromagnetic), and besides it's charge flow (amperage) that creates magnetic fields, not magnetic material flow.

So, existing creatures (even with a doubling or iron and high voltage abilities) are a long way off from developing magnetic abilities. The best bet is to be one of those insane people (I have been one for over five years now) and implant a small magnet in your hand. You can then lift paperclips and bottle caps as well as sense magnetic fields. Mainly you'll get asked "why?" rather than "hey can you save my friend with your powers?".

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  • $\begingroup$ If voltage does not matter, then the physiological change does not need to be as drastic. That helps. $\endgroup$ – DeveloperWeeks Aug 25 '15 at 22:29
  • $\begingroup$ @DeveloperWeeks Oh, it needs to be incredibly drastic. Very small currents inside of people kill them in short order. When you get shocked by static from your sweater you're getting thousands of volts but very very small current. If you get just a few milliamps through your arms though, it can stop your heart. A magnetic field from a few milliamps is not enough to lift a paperclip. $\endgroup$ – Samuel Aug 25 '15 at 22:33
  • $\begingroup$ So in summary, this answer is "human would die before accomplishing anything close without magic" $\endgroup$ – DeveloperWeeks Aug 26 '15 at 16:46
  • $\begingroup$ @DeveloperWeeks Correct, and it can even be generalized. Any known form of life would die before accomplishing anything close without magic. $\endgroup$ – Samuel Aug 26 '15 at 16:48

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