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A black hole starship is a theoretical idea for enabling interstellar travel by propelling a starship by creating an artificial black hole and using a parabolic reflector to reflect its Hawking radiation.

But how do you make the black hole to move with the starship? Do you attach it magnetically? Or gravitationally?

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    $\begingroup$ I'm not sure this is a well-defined question, as it is about an engineering feat in a thought experiment far outside current technology. $\endgroup$
    – ACuriousMind
    Apr 29 '16 at 9:37
  • $\begingroup$ I agree, but are thought experiments not allowed here? $\endgroup$ Apr 29 '16 at 9:40
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BHs can carry charge - so you squirt some electrons into it to charge it and then use an electrical charge on the parabolic reflector to couple it to the ship.

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  • $\begingroup$ According to wikipedia you are right about the charge but I must wonder how, how does the electro-magnetic force escapes the BH if light (electro-magnetic radiation) can not escape it? $\endgroup$ Apr 29 '16 at 9:43
  • $\begingroup$ @daniel.sedlacek That's a whole different question answered elsewhere on this site $\endgroup$
    – user56903
    Apr 29 '16 at 10:24

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