So I’m writing a sci-fi story, and there is a giant autonomous computer planet that constantly gathers resources from around the universe using drones and such. It stores a super weapon at the core of the planet, inside a black hole that is also used as a main power source for the planet, so as t...
did you mean wormhole? I.e. a gateway to some distance place in our space, or a parallel universe? You can store stuff there, and maybe there is a energy source there like a nearby star
While you can use a black hole as a powersource, you wouldn't be able to move it around, and most definietly not be able to store anything, besides energy, in it.
Black holes don't supply any power. As for storage, here's a related answer I wrote on physics. No matter what you put in there, you're not getting anything out.
Not exactly an answer but a similar concept exists in Revelation Space, a scifi book by Alastair Reynorlds. If you have the patience of going through the first book (it's a trilogy) you might get some inspiration.
@Gloweye Not entirely true. Hawking radiation provides a means for the energy of all that is dropped into a black hole to be re-emitted. In fact they're inherently a highly energy-dense means of storage, as well as a very efficient mass-to-energy converter.
Apologies. Let me restate that: Black holes don't supply any harvestable power. And if you try and get close enough to harvest hawking radiation than you've got a lot bigger problem than power shortage. And if you can fix those problems, then simply hydrogen fusion should be a piece of cake and a lot cheaper and more efficient.
@Gloweye Sorry, I shoulda been more specific. I don’t recall the exact name, but it’s one of those devices where the electromagnetic energy is bounced around the black hole. I’m not sure how reliable this source is, but I liked the concept: youtu.be/ulCdoCfw-bY
@Gloweye Check that paper. They're talking about black holes with a Schwarzchild radius on the order of attometers (subatomic size, by several orders of magnitude), with masses in the low millions of tonnes (big, but still ten to fifteen orders of magnitude below planetary masses) and radiating energy on the order of petawatts. Yes, it's perhaps more difficult than fusion, but in terms of energy density, longevity, and efficiency, it's well worth the effort.
@Mephistopheles Just because you can't touch a black hole doesn't mean you can't move it. It still has mass, and therefore momentum - just a lot of it. If you throw things at it, the momentum of that thing will be added to the black hole's, which means you could shove it around using high-velocity mass drivers, particle accelerators, or something similar. You can also use a second black hole (or anything else with sufficient mass) as a gravitational tug, to exert a pull in whatever direction you need.
@Gloweye : The Penrose process is an adequately studied mechanism to harvest significant power from a rotating black hole. You don't have to get close to it either. Essentially, gravitational frame dragging is allowed to act on a stream of masses fired in (from a great distance) to transfer angular momentum from the black hole to the masses by passing close-ish to the event horizon. This energy is then extracted from the masses as they return.
"I haven’t really heard about magnetic fields being affected by gravity" The lesson of general relativity is that everything is affected by gravity, since gravity is the curvature of spacetime itself. Magnetic fields exist on spacetime. Therefore, they are affected by gravity.
"the magnets power could be supplied by the infinite power that the black hole produces" A black hole doesn't produce "infinite power". Where did you get that idea?
Discussion on question by user69899: …
Discussion on question by user69899: …