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Q&A

Posts tagged dyson-spheres

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Q&A How efficient can a Dyson sphere be?

The shell variant of a Dyson sphere consists of an artificially-made shell of material about 1 AU in radius encircling a star. The sphere captures most of the star's energy and stores it for future...

1 answer  ·  posted 3y ago by HDE 226868‭  ·  last activity 3y ago by celtschk‭

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Q&A How might my futuristic interstellar civilisation have missed a Dyson swarm on their doorstep?

It's the future. The setting is about as "hard-ish sci-fi" as it is possible to be, with the one big exception of a viable FTL engine. Humans have began spreading out into the galaxy, colonising n...

12 answers  ·  posted 4y ago by MadScientist‭  ·  last activity 4y ago by MadScientist‭

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Q&A Inhabiting Mars versus going straight for a Dyson swarm

My question is as follows - let's assume our objective function is to have as many humans as possible living outside the confines of the Earth as soon as possible. For this, we need to provide thos...

6 answers  ·  posted 5y ago by Rohit Pandey‭  ·  last activity 4y ago by Rohit Pandey‭

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Q&A Would a Dyson sphere be useful as a means of power generation?

I have heard people (quite possibly on this site) say that by the time a civilization is able to make Dyson sphere it will be useless to build one for power and energy needs. So, would a civilizati...

3 answers  ·  posted 4y ago by meaninglessname‭  ·  last activity 4y ago by meaninglessname‭

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Q&A How would a Dyson Swarm transmit energy to the Earth?

The Dyson Swarm is common in sci fi as an energy source, and sometimes also as a powerful weapon. As it is commonly understood, it harnesses the energy of the sun, which stores a vast amount of ene...

5 answers  ·  posted 4y ago by CYCLOPSCORE‭  ·  last activity 4y ago by CYCLOPSCORE‭

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Q&A What tech would aliens use to harvest/alter our star and why?

I'm trying to create a scenario where the local star is "quickly" (suddenly up to thousands of years) removed, dimmed with reduced output, destroyed (maybe), or otherwise fundamentally changed as t...

7 answers  ·  posted 4y ago by Zolvaring‭  ·  last activity 4y ago by Zolvaring‭

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Q&A Dyson Sphere only ever possible theoretically

Assume technology more advanced than current levels, let us theorise for this question that we are capable of reaching and if needed extracting material from any planet or moon / body in our solar ...

2 answers  ·  posted 4y ago by AndyF‭  ·  last activity 4y ago by AndyF‭

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Q&A How to tell a blackhole from a neutron star covered entirely by Dyson sphere painted in vantablack?

In a galaxy far far away... M6760 (I made it up) is an unusually massive neutron star billions of light years away and it is surrounded by a spherical Dyson sphere painted in new improved formula v...

9 answers  ·  posted 4y ago by user6760‭  ·  last activity 4y ago by user6760‭

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Q&A How could a Dyson Sphere be destroyed through natural causes?

I would like to destroy a Dyson Sphere so it leaves big chunks of scrap metal with no habitable zones left, but still with enough structure to hold building-sized blocks. The destruction shouldn't...

9 answers  ·  posted 9y ago by Fulli‭  ·  last activity 4y ago by Fulli‭

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Q&A How would gravity affect a structure that completely encircled the earth

If a circular structure could be built that would wrap around the entire earth, but was of a larger radius, would it 'float' above the earths surface or would it somehow fall onto the surface at so...

6 answers  ·  posted 6y ago by crZyhamSter‭  ·  last activity 5y ago by crZyhamSter‭

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Q&A What to do with all the heat in a Dyson Sphere?

In the wake of this, my answer to this question about where to put a Dyson Sphere an apparent issue came up. And it needs some good resolution: What are we going to do with all that heat the syste...

10 answers  ·  posted 7y ago by dot_Sp0T‭  ·  last activity 5y ago by dot_Sp0T‭

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Q&A How much does the ecosphere weigh?

So, we've gone off to another star system and decided to build a Dyson bubble--a continuous statite, supported by radiation pressure, surrounding a star--with a surface gravity of 1g to live on. N...

1 answer  ·  posted 5y ago by Logan R. Kearsley‭  ·  last activity 5y ago by Logan R. Kearsley‭

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Q&A Alternative to gravity inside a Dyson Sphere?

On the inside of a Dyson sphere there is effectively no gravity. Is there an alternative method to keep people on the inside surface from floating around? I know it could spin and that would keep...

4 answers  ·  posted 5y ago by ZoneWolf‭  ·  last activity 5y ago by ZoneWolf‭

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Q&A Brown Dwarves: Dyson Spheres in disguise?

Would a Dyson sphere make a red dwarf appear to be a Brown Dwarf? Would it disguise a star enough to misidentify it what size it is? I'm just wondering if it could be possible that some Dyson sph...

7 answers  ·  posted 9y ago by bowlturner‭  ·  last activity 5y ago by bowlturner‭

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Q&A Should my Dyson Sphere be bigger? (Climate/habitable zone)

My world is a 1AU radius, 12000km thick Dyson Sphere with 6 equally spaced holes, 4 filled with water. The two main problems I have are gravity and heat. This question concerns heat and how to stop...

5 answers  ·  posted 5y ago by ZoneWolf‭  ·  last activity 5y ago by ZoneWolf‭

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Q&A Would there be gravity on the plates of a Dyson swarm?

I've heard several schools of thought. From a hard science standpoint, could there be gravity on the habitable surface of a Dyson Swarm plate? I keep thinking no. But if the outer shell were to b...

3 answers  ·  posted 6y ago by Richard‭  ·  last activity 6y ago by Richard‭

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Q&A Has realistic climate modelling been done for inverted Dyson spheres or similar?

While there are approaches to make a habitable Dyson sphere that are technically reasonable, I am curious about what the climate would be like. For simplicity, consider a scenario where a thick she...

2 answers  ·  posted 6y ago by nordmarj‭  ·  last activity 6y ago by nordmarj‭

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Q&A Where do you put a photosynthetic Dyson sphere?

One of the answers to What could make a star green? describes a living Dyson sphere made of photosynthetic, plant-like material. What type of star or star system is ideal for a plant-like Dyson sp...

5 answers  ·  posted 7y ago by Zxyrra‭  ·  last activity 6y ago by Zxyrra‭

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Q&A Interstellar construction between star systems

Asked a similar question before but didn't think it through and mangled it. Anyway would it be possible to build a structure between two star systems? Basic scenario is that you have two stars su...

2 answers  ·  posted 6y ago by Exostrike‭  ·  last activity 6y ago by Exostrike‭

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Q&A What is a Dyson Sphere around a planet called?

Imagine that we start expanding the International Space Station until it becomes a ring encircling the whole Earth. Then we started widening the ring until it met at both poles, forming an orbital ...

9 answers  ·  posted 8y ago by Henry Taylor‭  ·  last activity 6y ago by Henry Taylor‭

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Q&A Barycentric/Orbital stability of a Dyson Sphere and Central Star

Can a Dyson Sphere and a star inside of the Dyson Sphere, both have a "stable" orbit around the barycentre of a system where they are not the most massive objects? And/Or Can they both orbit togeth...

2 answers  ·  posted 6y ago by Techdragon‭  ·  last activity 6y ago by Techdragon‭

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Q&A Visibility of a Dyson ring/swarm

There have been several questions about the construction, operation and destruction of a Dyson sphere. I'm interested in something a bit less exciting: how far out can you still see it from? Assum...

2 answers  ·  posted 6y ago by Weaver‭  ·  last activity 6y ago by Weaver‭

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Q&A Would building a Dyson sphere inside the Earth's orbit render our planet uninhabitable?

The year is 3030 and the robots (who have replaced humanity as the dominant intelligent beings on Earth) have decided to build a Dyson sphere around the sun. They're planning on disassembling Venus...

6 answers  ·  posted 7y ago by ckersch‭  ·  last activity 7y ago by ckersch‭

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Q&A Is there a Dyson-like megastructure that would not block out the sun?

If I have a typical Dyson sphere, around my star, it will block the light needed to live on an orbiting planet. Is there any other megastructure that can function like a Dyson Sphere, but does al...

3 answers  ·  posted 7y ago by Mendeleev‭  ·  last activity 7y ago by Mendeleev‭

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Q&A How long does a component of a Dyson swarm spend in shadow?

I'm building a Dyson sphere - a real one, like Freeman Dyson originally proposed, made of swarms of solar collectors in independent orbits that fully surround the star, something like this: Each...

6 answers  ·  posted 7y ago by Werrf‭  ·  last activity 7y ago by Werrf‭

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Q&A Geology of a supermassive Dyson sphere

There was a question on here a while ago about lighting a massive Dyson sphere, that has gotten me to thinking. Obviously, such an item needs some unobtainium to build, but ignore that. I'm figur...

3 answers  ·  posted 8y ago by Loren Pechtel‭  ·  last activity 7y ago by Loren Pechtel‭

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Q&A How would temperature variation work on the inside surface of a Dyson sphere?

Let's say I have a Dyson sphere roughly the same size of the earth with a very small "star" in the center. Continents, oceans, and people inside the sphere experience a reverse gravity in the oppos...

4 answers  ·  posted 7y ago by One Normal Night‭  ·  last activity 7y ago by One Normal Night‭

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Q&A Dark matter caused by Matrioshka Systems

It seems like Dyson Spheres are always brought up in the context of harvesting power. However, another use for a Dyson Sphere may be to cloak your solar system/inner planets. If the star's output d...

2 answers  ·  posted 7y ago by Erik‭  ·  last activity 7y ago by Erik‭

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Q&A Source of breathable air to fill Dyson sphere shell

So let's say you have a Dyson sphere that is 5 kilometers thick . Now, it isn't solid. It's meant to be inhabited. There's the inner shell which is completely covered with solar panels and any oth...

4 answers  ·  posted 7y ago by CaptClockobob‭  ·  last activity 7y ago by CaptClockobob‭

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Q&A Would people living on different ringworlds around the same star measure time differently?

Okay so I have a sci-fi world masquerading as a fantasy world where numerous different genetically-engineered humanoids live on nine different ringworlds orbiting an artificial Earth-mass black hol...

1 answer  ·  posted 7y ago by Z.Schroeder‭  ·  last activity 7y ago by Z.Schroeder‭

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Q&A Regional Climate in a Dyson Sphere

A Dyson Sphere, being a sphere, is a uniform "equatorial" climate across the entire surface. I consider this to be a major problem. Somewhere between the Dyson Sphere and the Dyson Hyperboloid is ...

1 answer  ·  posted 8y ago by Separatrix‭  ·  last activity 8y ago by Separatrix‭

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Q&A Climatology of a supermassive Dyson sphere?

Note: There is a related question about illuminating such a sphere that inspired this question. I'm going much farther, though, this is not a dupe. The Dyson sphere will be the central mass of t...

1 answer  ·  posted 8y ago by Loren Pechtel‭  ·  last activity 8y ago by Loren Pechtel‭

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Q&A Could an abandoned Dyson Ring survive long enough for intelligent life to evolve?

Humanity survives long enough to create a Dyson-Ring around old Sol using many of the planets and asteroids currently in the system. Then 'something happens' we die out, we discover a way to trave...

3 answers  ·  posted 8y ago by bowlturner‭  ·  last activity 8y ago by bowlturner‭

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Q&A How and when could a Dyson sphere civilization figure out the shape and size of their sphere?

Kinda inspired by the non-disappearing ship question, but I actually asked this particular question on an unrelated forum a few years ago. Reposting it here (well, paraphrasing, really, since I don...

6 answers  ·  posted 8y ago by January First-of-May‭  ·  last activity 8y ago by January First-of-May‭

Question dyson-spheres
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Q&A My BIG World Needs More Suns

Summary version: So we're talking people living on top of 30 miles of topsoil, fake dino fossils and water on the outer surface on a hollow (but sturdy) unobtanium sphere with a radius about 1 AU....

2 answers  ·  posted 8y ago by Serban Tanasa‭  ·  last activity 8y ago by Serban Tanasa‭