Are Dyson Sphere's Theoretically Possible to Build?

Are Dyson Sphere's Theoretically Possible to Build?

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If you could keep the panels from getting incinerated, then I don't see why it wouldn't aside from the risk of screwing up the earth's climate, though transparent panels would probably solve that problem.

Why Are You Capitalizing Every Word You Mongoloid?

Not only are they possible, they're inevitable if humanity ever gets off Earth and doesn't discover some unknown power sources. Pretty much as soon as the first off-Earth colony is built the construction of the first Dyson sphere will begin. Dyson spheres aren't really rigid structures like your picture portrays, they're more of a cloud of objects, your picture would be better described as a Matrioshka brain. They could be, but there's not much point in building an actual sphere. But yeah, its not a question of "if", if we ever leave Earth they definitely will be built since there's more than enough material lying around and letting all the Sun's energy go to waste is pointless.

No.
A Dyson Swarm is possible but not feasible.

No, a dyson sphere would be destroyed by tidal forces. There is no material that could hold up to those kinds of forces.

What would work much better is a dyson swarm; billions of small, individual satellites orbiting the star with their orbits carefully designed so that there is no straight line from the sun to outside the sphere that doesn't cross a satellite at any given time. This still allows complete coverage of a star but avoids the problems of tidal forces and stress from high gravity. It would also be much easier to build; with a swarm you just need to release one satellite at a time and immediately get the benefit of each one, but with a sphere you would need to somehow complete a full ring to keep it from falling into the sun

dyson spheres are tough
dyson swarms are comparatively pretty easy if you exploit automated manufacturing. make some probes that pick out metal rich asteroids then build a factory to build solar collectors that then fall into orbit near the sun. At that point you just wait a while for exponential growth to do its thing

because its a title, retard.

there's a dedicated "subject" line when you make a thread on Veeky Forums, which you didn't use. If you want to title a thread you put it there. Capitalizing every word in the post body is not part of the recommended Veeky Forums writing style guide.

Yes, it's the source of dark matter/energy.

A race that could manufacture that type of structure wouldnt give a shit about management of resources. So yes an advanced race could make those things with the same ease as humans make huts.

No - not physically and not feasibly, Dyson Swarms are though but still not really feasible. We don't need that sort of energy anyway, I can't imagine us ever needing it.

Yes but it would take a very, very, very long time with the current technology we use.

Spheres? Not with any material known today. But the idea of solid spheres is the result of brainlets regurgitating the idea. The original is more like a dyson swarm, a dense fleet of orbiting habitats and other kinds of space stations absorbing a large proportion of the star's radiation.

If other civilizations were building dyson swarms, it would be really fucking obvious. The fact we don't see any is why I think we're the only intelligent species in the observable universe.

Would it? The commonality of extra-solar planets is a relatively recent discovery.

fuck dyson spheres, i want a matrioshka brain

It would obvious because there would be stars that were invisible in visible light but visible in infrared. Dyson swarms wouldn't block *all* light, they'd still re-radiate useless infrared energy. And in all likely hood, a civilization that could build one Dyson swarm could populate the entire galaxy, so you'd see millions of stars missing but visible in infrared.

Why do you assume they'd be visible in the infrared? The general idea is to make use of all of the energy, not radiate it away pointlessly into space.

Because no process is 100% efficient. There's always going to be waste product, and in this case, once they've used the light from the sun for their machines or whatever, waste heat is going to be released as infrared light.

you live on one , so what do you think?
gawd,

Learn physics. Every black body radiates. Stealth in space is physically impossible.

what about stealth to the point of background radiation?

No system open to the vacuum which produces work from energy can globally reach the temperature of the vacuum. The laws of thermodynamics dictate this.

whut?

>The laws of thermodynamics

Why do you think a dyson swarm is an isolated/closed system for which thermodynamics would apply?

...

Look, it would emit radiation we could detect. That's the end of it, unless you've discovered 100% efficiency, in which case, go and get your nobel prize and change humanity forever.

>can build a dyson swarm
>can't reduce emitted radiation to such negligible temperatures that it is dismissed as CBR.

Nobody said 100%. I think you're underestimating the ability of more advanced civilizations to extract as much power as possible from the sources available to them.

>I think you're underestimating the ability of more advanced civilizations

We could start building one right now you potato.
And they will always emit heat.

Why would you? You'd likely have to build it orders of magnitude larger than it would normally be just to cool it to imperceptible levels.
Even then, the thing about dyson swarms/spheres is that they make interstellar colonization rather trivial. So you'd expect at least some kardashev II civilizations to start expanding outward. This would result in an expanding sphere of gradually dimming and eventually disappearing stars. And this is even supposing they bother with 20 cycle cooling to get the sphere down to invisible levels.

KIC 8462852 and EPIC 204278916 show suspicious light fluctuations, maybe we already observe civilisations building these things?

Getting to the temperature of the CMB is equivalent to 100% efficiency because producing work from heat is a relative process, and not an absolute one. So work must dump waste heat due to thermodynamics, and that waste heat must be hotter than whatever the relative temperature of the system you are dumping heat into is. Therefore all heat generated by objects in a vacuum must be hotter than said vacuum.

The evidence isn't strong enough, and there are other explanations that follow Occam's Razor better.

If the expansion rate is slow enough (for example if FTL is never a real thing), we haven't existed long enough to notice any such dimming as anything other than "natural".

The expansion rate isn't "slow enough". Once you actively inhabit space, it doesn't take much more than a millenium to build a swarm. And the same applies to any colonies, which can be built simultaneously. It's roughly volumetric expansion from there on out. Given how long life takes to evolve, blotting out half a galaxy would take a very short time. Realistically, you could be looking making visible holes in the profiles of galaxies in mere hundreds of thousands of years.

The issue in fermi paradox related questions is never "yea but what if they aren't doing x". So long as at least some aliens can be expected to do this thing or that which would make them observable, you'd very quickly run into many many visible civilizations. Which aren't there. Space is really big, and we can see really far. Yes, there are all kinds of possibilities for exceptions, they're just extremely statistically unlikely.

>(for example if FTL is never a real thing)
Also, no one brought up FTL you mong. Interstellar travel is trivial for K2 even if they are no more scientifically advanced than us. Most of the concepts considered here are just extension of existing knowledge and technology.

Why would we start building one? What possible benefit do we have to gain from satellites collecting energy? What is the energy going to be used for? There's no reason to build a Dyson swarm.

There are no other plausible explanations yet. I don't say it's the ayys but it isn't worse than the others.

>What is the energy going to be used for?
To finish your mom's dildo.

If you need to be told what kind of crazy useful shit could you do with that kind of juice, then what the fuck are you doing opining on it?
Learn - then opine.
Fuck's sake, some people...

No one would even have to build it. Suppose space habitation is common and established tech. The more people live in space the more they expand and divide off to build seperate habitats. Eventually you have so much shit that it blots out the sun. If you don't believe this is possible, try explaining the concept of megacities and why they occur to paleitic hunter gatherers.

>be medieval peasant
>what could be the reason to build a power plant?

>digitized human's and/or their creations are dominant form of intelligence
>need to grow computational power to support more virtual realities, intelligent entities, physical modeling and engineering simulations, cryptocurrency calculations, etc
>computational power is the primary valuable resource
>need energy and matter to support massive computers
>build clouds of computronium to orbit the sun, collect energy, and support the digital posthumanity
>Single gram of computational matter can hold thousands of standard human minds
That is pretty much the only direction we can go if we don't end up destroying ourselves somehow, population always tends to grow and even if most of us don't want to digitize ourselves, at least some of us will. And those beings will be far superior to regular humans and end up the dominant form of life anyway due their massive potential for replication and self-optimization.

>to warm, feed and cater to people
>why do they need it?
>there are 10000 times more of them here now
It's literally the same answer

It's My Life, Mom!

>black people in space

lmao you're an idiot

>see red dwarf
>it's actually a star concealed to look like one by the advanced civilization that built a dyson swarm around it to power mega VR porn super computer and not get blown up by others

Let's be honest its not out of the question.
If we never actually notice any kind of major sign of alien intelligence we should probably strongly reconsider the fedora theory thing.

Dyson Swarm

No.
It would be very obvious if there was that kind of civilisation within visible range.
It only takes energy in the megawatts to broadcast a signal across the entire galaxy that we could detect clearly, with the population and power available to a Dyson swarm-building civilisation there would be no reason they wouldn't be doing that.

>red dwarfs are most common stars
>all ayylmaos end up building a dyson swarm to fire up hypercomputer anime VR porn sims
>this why the galaxy is silent

shit mang, you've just solved the Fermi paradox, go call NASA

>No other plausible explainations
Comet or planitary debris either in the system or between us and it.

kek

Its not out the question, but alien civilizations wouldn't be able to conceal themselves. They wouldn't need to bother trying anyway, if you have a dyson swarm no-one is destroying you. Its pointless.It is very likely they're all living in simulations though, at least some of the time. We only have video games now and a growing portion of us don't even leave the house.

>couple thousand years of observation
>expects to see dyson swarm expansion from a non-ftl civilization.
Yeah, no. You'll need a lot longer period of observational time to discern the difference between a civilization causing a star to gradually dim vs natural causes.

how do you see a fully realized kardashev 3 civilization?

With great difficulty. You'd be looking for an area that is apparently a galaxy due to the gravitational effect on other objects, but emitting a tiny amount of light.

Not only is nobody going to destroy you, but you'd have enough resources and power to identify every planet in the galaxy and propel a chunk of rock at it at relativistic velocities.

>capitalizing every word in your sentence

NIGGER

Entire planets only dim a star by 1% or so, it would have to be one hell of a comet swarm to cause the dips of 20+% seen in the suspicious stars.

>broadcast a signal across the entire galaxy that we could detect clearly

There is no reason to do that.

>Transparent Solar Panels

you described a dyson swarm, which is more feasible than a dyson sphere, but a different thing

Who's the guy? It's a very Russian expression he's wearing.

>Look, it would emit radiation we could detect.

Not with anything we currently have. It'd be way to far away and far to dim. We'd need to stare at that spot for a long long time with an extremely focused and sensitive array in order to even have a hint of it.

Pope John Paul II is a distinctly Polish meme

Except they'd block the light coming from behind them, as well as emitting in infrared. Dark matter, whatever it is, doesn't interact electromagnetically at all. Also you'd need there to be several times more Dyson sphere'd stars than 'naked' stars to account for the total mass.

>Not with anything we currently have.

Course it would. A 200 million km blob of infrared would be highly suspicious.

I think to construct a stain sphere you'd need multiple planets worth of materials. I think it may be "possible", but it's impractical. It would probably take thousands of years.

Isn't anti-matter reacting with matter a way to "create" energy at 100% efficiency?

We haven't gotten current light from further away areas in the universe where the ayys may be residing. Technically speaking ayys may exist right now but we won't know for millions or even billions of years.

That is my life goal. AstroEngineering will be a thing in my lifetime

If we can't build a space elevator, don't even dream of that. What we could build is a ring around a star, or several rings.

msutoday.msu.edu/news/2014/solar-energy-that-doesnt-block-the-view/
>2014+3

Only if you don't have to create the antimatter (or matter if antimatter is your norm) already, obviously.

>What is the energy going to be used for?
Extermination of xenos trying to live in our solar system.

There is probably not enough material in the solar system to build a sphere that covers the whole sun. You would have to exploit all the ressources of all the planets, moons, asteroids and other cosmic bodies of dozens of solar systems to have enough ressources to construct such a thing. It would be probably smarter to just build partial dyson spheres around each star.

>Boötes Void

Wouldn't it be more profitable to just mine Jupiter for hydrogen?

There's even no dark matter there, otherwise it would bend light.

>populate the entire galaxy
Like a cockroach, lol.

>So long as at least some aliens can be expected to do this thing or that which would make them observable, you'd very quickly run into many many visible civilizations.
We didn't yet find a pulsar orbiting a black hole on an elongated orbit. Why is it invisible?

>not disassembling the star and converting it to computronium and a more efficient fuel source, along with the rest of the planetary system

>They used the energy from the dyson clusters to build a huge lens to reverse the effect
>galactic cloaking is best defence

He's writing a light novel