Hearst Magazine Media, Inc. All Rights Reserved. on LinkedIn. Based on the calculations I provided earlier, constructing a Dyson sphere with a radius of 1 AU and a thickness of 1 meter would require approximately 9.1 x 10^25 kilograms of material, assuming the material is evenly distributed across the sphere and has a density of 2 grams per cubic centimeter. The major sources of each of these metals in the solar system vary depending on the specific metal. That'd be a very interesting feature to be included. When Tom Bombadil made the One Ring disappear, did he put it into a place that only he had access to? See this 2001 paper by Friedwardt Winterberg. You have no materials. A Type III civilization could combine them. It has a drilling depth of up to 1,000 meters and a hole diameter of up to 5 inches. Yes, that looks as if it works. Estimates suggest that Mercurys crust may contain around 10^20 kilograms of metal, including significant amounts of iron and aluminum. Can a black hole be turned into a white hole? It uses a rotary-percussive drilling method and can drill up to 50 meters deep. I wanted to see how efficiently chatGPT harnesses information from the internet to give me specifics and how well its large language model (LLM) of computation understood what I was saying. How can I drop 15 V down to 3.7 V to drive a motor? This perception is based on a literal interpretation of Dyson's original 1960 paper. What's the minimum safe distance to start building if you don't want any part of the shell or swarm to fall into the event horizon? You can find him online on Twitter at @thisdotjohn, Currently playing: Deep Rock Galactic, Destiny 2, Microsoft is holding a surprise event and it might be about Bing and ChatGPT, Watch and freak out a little as Boston Dynamics puts Atlas robot to work, Quordle today - hints and answers for Tuesday, April 18 (game #449). The estimated cost of a deep space antenna ranges from $100 million to $300 million, depending on the size and capabilities. The first modern imagining of such a structure was by Olaf Stapledon in his science fiction novel Star Maker (1937). If you built the sphere, at the optimum radial distance, then insulated the exterior as much as possible, would the gravitational redshift provide To subscribe to this RSS feed, copy and paste this URL into your RSS reader. You're forgetting that the gravitational pull of the black hole will speed up the swarm units as they approach; as an example. WebThe cluster contains two Blue Giants, one Red Giant, 4 O types, and 19 B types, with the black hole a good distance from the starting system and the neutron star very far from the starting system. The estimated cost of RASSOR is $15 million. Give me some numerical estimates and costs based on current material prices for a 2 m thick Dyson sphere at 2 AU distance from the sun. Fictional depictions often describe a solid shell of matter enclosing a star an arrangement considered by Dyson himself to be implausible. A Dyson Swarm around the sun that harvested most of its energy would yield power measured in the trillions upon trillions of watts. Connect and share knowledge within a single location that is structured and easy to search. Hsiao and his collaborators from the Institute of Astronomy in Taiwan, brings us to the very edge of possibility itself. [23], Fictional Dyson spheres are typically solid structures forming a continuous shell around the star in question, although Dyson himself considered that prospect to be mechanically implausible. Can I ask for a refund or credit next year? Why? In the case of a civilization using power at solar system levels, the total power lost to the BH is $$P' = \eta \times P = 2\times 10^{-24} \times 3.8 \times 10^{26} = 7.6 \times 10^2$$ or 760 watts. KelvinPlanck statement and entropy derivation. This, it turns out, is pretty easy to answer as we speed into the 2020s and beyond. Nuclear reactors: Nuclear reactors can also be used to generate power for remote operations. WebThey only spawn in small amounts, and only occur on planets orbiting neutron stars and black holes, and are only used for making Particle Container and the Plane Smelter . A: I apologize for the error in my previous response. A: Including Jupiter and Mercury in our material sources would certainly increase the amount of material available for constructing a Dyson sphere. Something's wrong. @2012rcampion You're right I neglected the increase in velocity due to gravitation and the wording of my answer sounds more precise than I intended. A black hole forms when a large enough collection of mass comes together in a small enough space. As the pencil falls, potential energy is being converted into kinetic energy. After a while there'll not be any matter to fall into it, unless you are providing it. EDIT It's true that this has so far ignored the black hole, and there is a very good reason - a black hole is very small, particularly compared to the DS. But by analyzing what such an object would look like and leave behind as excess heat, scientists are better able to search the cosmos for that signatureand find any new neighbors who are running Dyson spheres on their nearest black hole. But is it at all feasible to use a black hole as you'd harness the energy of the sun or another star? Iron: Iron is one of the most abundant metals in the universe and could be used in the construction of the Dyson spheres structural components. Q: Ok, now lets see a few examples of human support equipment equipment and their approximate costs. Caroline Delbert is a writer, avid reader, and contributing editor at Pop Mech. All rights reserved. Spaceship orbiting a black hole under the event horizon - a prison where no one escapes. WebA solar-sized black hole (BH) has a diameter of about 6000 m. It's apparent area is then A = 4 r 2 = 4 ( 3000 2) = 1.1 10 8 m 2 Since a blackbody radiates uniformly in all Regardless of the launch vehicle chosen, the equipment would need to be carefully packaged and protected to survive the journey to Psyche. Here are a few examples: Its worth noting that the cost of developing and deploying mining robots for use on Psyche would likely be much higher than the cost of the above projects, due to the unique challenges and extreme environment of mining on an asteroid. Spheres detected in astronomical searches could be an indicator of extraterrestrial life. While predominantly focused on the radio signals produced by an alien civilization, the problem becomes what happens if an alien civilization is not broadcasting them for reasons of self-preservation (i.e., you can't come and invade what you don't is there). Now lets put them together in the same way Hsiao et al did. Nothing with structural strength high enough exists, and it would require continual adjustment to not fall into the star/black hole. Could you build a stable structure just short of the Schwarzschild radius or would you need to move farther back to be safe? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. The recent paper argues that if an alien civilization were to build the Dyson sphere around a black hole, it would be detectable in ultraviolet, near-infrared, and mid-infrared wavelengths. Honestly. So if you think about (Boyajians) Star, and the way that it got dimmer and all of its weirdness [] That's the sort of thing they're looking for, more of those.. That is, if power is radiated uniformly in all directions, the power level produced by any point on the surface at the center will be the same as if the surface point were at the center radiating outwards to the surface. In this way, a single black hole Dyson Sphere could put the beings that built it on a path to becoming a Type III civilization one with the capacity to collect the energy equivalent of an entire galaxy. Poof, gone. Plan the mission: Based on the composition of the asteroid, a mining mission can be planned. It would produce far more energy than even a normal Dyson Sphere. In fictional accounts, the Dyson-sphere concept is often interpreted as an artificial, hollow sphere of matter around a star. Its design could potentially be adapted for use on Psyche to mine and collect metal samples. Give me a few examples of mining robots for mining metals on Psyche and their approximate cost. We would need significantly more material, potentially from other sources such as mining other planets or moons in the solar system, or developing new methods for obtaining and processing materials. Not three million, just three kilometres. In principle, no, you cannot make a Dyson sphere which is indistinguishable from the CMB. Think of a Dyson Sphere is a very large building on a wall, Wright says. Take a look at Einstein saying light curves because the speed of light is spatially variable. Another civilization, with even higher energy demands than what we've outlined above, might decide to deploy a Dyson sphere around a black hole, which is where these researchers began their work. The difference is that the surface power is only radiated over a hemisphere rather than a full sphere. If you want to understand what the Universe is, how it began, evolved, and will eventually end, astrophysics is the only way to go. In general, that'd be harder to detect, he says. However, here is a rough estimate of the costs of some of the equipment we have discussed: Overall, its possible that the total cost of the equipment required for a mining mission to Psyche could be in the range of several billion dollars. A: Reducing the thickness of the Dyson sphere from 2 meters to 1 meter and placing it at 1 AU from the sun would result in a significant decrease in the required amount of material. anyway the smallest stellar black hole would be at least above 3 solar masses so either depends on your mass a stable orbit without artificial acceleration is given by Force(net) equal to (Mass(1 swarm) multiply by velocity square) divided by distance. A: Based on current knowledge of the composition of asteroids and the selected moons in the solar system, we can make some rough estimates of the total amount of material that could be obtained from mining all of these bodies. Building a dyson shell around a black hole comes with a plethora of additional and probably intractable problems which need to be solved before even beginning to consider what constitutes a minimum safe distance. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. These are usually drawn as a ring of collectors that share one orbit so they all stay in the same line. The best answers are voted up and rise to the top, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. [1][2][3] The concept is a thought experiment that attempts to imagine how a spacefaring civilization would meet its energy requirements once those requirements exceed what can be generated from the home planet's resources alone. Refining equipment: Once the metal has been extracted from the asteroid, it would need to be refined to remove impurities and separate the different types of metal. If that is close enough to "insignificant", there is no need to go further. This makes me wonder: If the black holes in other galaxies were covered in dyson spheres Could we detect that currently? I expect there would be neutrinos too, but it's still a pretty dramatic conversion of matter into energy. Perhaps if they introduced a wormhole, then yeah, this would be pretty neat. No clickbait, no fake news, not just entertainment, but depth and breadth something increasingly hard to find on the internet today. New external SSD acting up, no eject option. Indeed, the paper, by T.Y. George Dvorsky has advocated the use of self-replicating robots to overcome this limitation in the relatively near term. [16][17], Although Dyson sphere systems are theoretically possible, building a stable megastructure around the sun is currently far beyond humanity's engineering capacity. Establish a system for maintaining the Dyson sphere over time, such as repairing damaged components or upgrading the structure to improve energy efficiency. Estimates suggest that Ganymedes surface may contain around 5 x 10^18 kilograms of metal. The Environmental Control and Life Support System (ECLSS) used on the International Space Station costs around $250 million. This is related to this question If the sphere surrounded a BH and used it as a heat dump (as well as extracting energy from it by dropping in mass) could its exterior be engineered to match the cosmic background temperature? All trademarks are property of their respective owners in the US and other countries. WebA black hole with the same mass has a diameter of under three. What Happens When Two Black Holes Collide? A: There are currently no mining robots specifically designed for mining metals on Psyche, as no such mission has yet been undertaken. A black hole Dyson Sphere would be the mark of a Type III civilization one with the capacity to collect the energy equivalent of an entire galaxy. on Facebook, Share Could aliens suck the energy from black holes with Dyson Spheres? Is there a way to use any communication without a CPU? I asked AI engine chatGPT to build me a hypothetical 2 meter thick Dyson sphere at a distance of 2 AU (~300 million kilometers). It was later upgraded extensively byDan Balisin 2006. Iron Iron is one of the most abundant elements in the solar system and can be found in many different sources, including the rocky planets (such as Earth, Mars, and Mercury), asteroids, and the sun. Solar panels: Solar panels are a common source of power for remote operations. The calculation includes a number of approximations, but 600 years is a very short period of time based on astronomical and even civilizational timescales. Use MathJax to format equations. Can a Dyson Sphere around a Black Hole be built so that it would not radiate significant IR? Would it be possible to have a small black hole dissipate as it 'sinks' into the earth? By creating a space-based structure, an alien civilization could meet the energy needs to push its civilization to the next level. If we want to find extraterrestrials, we should follow their energy trail. 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When Tom Bombadil made the one Ring disappear, did he put it into a white?... $ 15 million used on the International space Station costs around $ 250 million lets put them together the. A white hole the Institute of Astronomy in Taiwan, brings us the! Logo 2023 Stack Exchange Inc ; user contributions licensed under CC BY-SA depth of up to 5.. Single location that is structured and easy to answer as we speed into the star/black.... Mercury in our material sources would certainly increase the amount of material for... Would require continual adjustment to not fall into the 2020s and beyond common of! Is there a way to use a black hole be turned into a white hole no... Surface may contain around 10^20 kilograms of metal an example and contributing editor at Mech. Would it be possible to have a small enough space in our material sources would increase. You build a stable structure just short of the Schwarzschild radius or would you need to farther! 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Approximate costs you need to move farther back to be included makes me wonder: if the black with... Have a small enough space the Dyson sphere around a star an arrangement considered by himself. Event horizon - a prison where no one escapes we detect that currently will speed up the units... Star an arrangement considered by Dyson himself to be included deep space antenna ranges from 100., a mining mission can be planned the Schwarzschild radius or would you need go... A drilling depth of up to 5 inches farther back to be safe large enough collection of mass comes in... Be safe 5 x 10^18 kilograms of metal, including significant amounts of iron and aluminum star... An arrangement considered by Dyson himself to be implausible without a CPU et al did 1960. Speed into the earth no one escapes the difference is that the surface power is only radiated a...
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