On: Wormhole Tunnels in Spacetime May Be Possible, New...

[shakezula]

They mention the magnetization of blackholes - is this related to the other black holes post on front page today? https://news.ycombinator.com/item?id=27223520

Utilizing the extreme magnetic polarization of a black hole seems pretty sci-fi but sounds sweet as hell.

[the8472 → shakezula]

Seems unrelated. This paper is talking about the black hole itself (not its accretion disk). And it's also talking about a magnetic charge rather than a magnetic field. This would require magnetic monopoles, which are hypothetical.

[shakezula → the8472]

Interesting! Thank you for the clarification. I am a total noob at astrophysics but the two seemed coincidentally related.

[zardo → the8472]

Is there a working EM theory where div B != 0