A Dyson sphere around a black hole

Re:A Dyson sphere around a black hole by Qub3d on Thursday August 19, 2021 @03:46AM (#28231403)

Kurtzgesagt made a video explaining some possibilities. In short, you can throw mass or radiation at a spinning black hole and "steal" rotational energy from it.

https://www.youtube.com/watch?v=ulCdoCfw-bY

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Re:A Dyson sphere around a black hole by chii on Thursday August 19, 2021 @04:09AM (#28231512)

also, you can use light, instead of matter.

Termed the "halo drive", it's a very nice theoretical concept: https://www.youtube.com/watch?v=rFqL9CkNxXw

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