So I had this idea for an FTL drive that would work by creating a rift (a black hole before it tugs on space enough to become unstable and deadly) via an unbelievably strong magnetic field. I know that atoms are mostly empty space anyway, and they can be compressed to smaller sizes with a big enough applied force. But could a magnetic field actually produce a force capable of squishing a matter (probably plasma) down to the point where it would become a black hole?

  • $\begingroup$ Someone flagged this off-topic. I voted "leave open", but could you expand it to explain how are you building whole world with this information? I know you mentioned it, but this flag suggests that making it more obvious and visible may be a good idea. $\endgroup$
    – Mołot
    Commented Apr 25, 2017 at 9:53
  • $\begingroup$ @Molot It was more of just a quick question on if it was possible to compress matter like this, but I was thinking about using this as a critical piece of tech in a story I'm writing. Aside from FTL travel, it's also important as a plot device since a rift can be destabilized into a black hole (the phrase "every tool can be used as a weapon" comes up a lot in the story)> $\endgroup$
    – Mattias
    Commented Apr 25, 2017 at 16:42
  • $\begingroup$ @Mattias Look up Neutron Star. That involves gravity, not magnetism, but you might get some ideas. $\endgroup$
    – Len
    Commented Feb 17, 2018 at 19:38

1 Answer 1


Yes. See for example The Z Machine for ideas.

You can also find videos where a metal object like a coin in crushed using such effects.

Look at the fields involved in Magnetars, and that’s not enough to crush matter beyond nuclear densities. But using pulsed power, small regions, and invoking quantum gravity effects you can get away with it. Quantum gravity is a big unknown right now, and that gives you room to paint whatever you like without violating the known laws of physics.


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