How could you imagine living on a ringworld?

>>51530619
>How could you imagine

Use your brain I guess

>>51530619
It'd be pretty shit, unless they found a way to simulate gravity on that large of a scale without destroying the ring. Then I guess it'd be pretty neat.

>>51530739
You are a fucking idiot

The ring spins, meaning that everything on the inner side effectively has gravity. That's pretty much the entire point of making them ring shaped.

Admittedly a cylinder would probably be better, but you know.

>>51531192
So then what holds the atmosphere?
Or prevents anything from "falling" off the edge?
And, another point, how do you spin a ring that big fast enough to simulate gravity, without destroying it?

>>51531289
Space magic.

>>51531306
>>51531308
there you go, was that so hard?
but yeah, it would be pretty neat, so long as the space magic never stopped and the ring didn't fly apart, or implode, or stop spinning, or the atmosphere didn't drift away.

>>51531289
Niven style, you make it the size of earth's orbit. Make it whatever you want wide.
Make give it walls on either side a thousand miles tall.
Spin it. Gravity pulls things "down", which is synonymous with "out".
Sure, moving with the spin should make you slightly heavier, and against it should make you slightly lighter, but it's tiny stuff. No one would notice.

Air is pulled down just like a planet (albeit, "down").
Air doesn't fall over the walls, because 1000 miles is enough to to keep it all in. Because again, air is subject to the same gravity you are.
Put some panels in orbit between the ring and the sun for night/day cycle. The sun will go from 'set' to "high noon" and then back to "set" with no intervening period. You could use some clever lenses between the panels to simulate 'rise' and 'set' affects.

Stop mistaking your ignorance for keen intellect.

>>51531432
It's also worth adding that a Ringworld is one of the tamer megastructures out there. Topopoli or Alderson disks or nested dyson spheres are way more freaky.

>>51531448
Even Dyson said the sphere was stupid.

A swarm on the other hand

>>51531448
Are there pictures of those?

>>51531432
Ok, but that still doesn't solve the issue of how it's supposed to go fast enough to simulate earth gravity, and not fall apart.

>>51531506
I don't think it's a stretch to assume that a future material might have the ability keep that shit together. I mean, Carbon Fiber stuff is already in the works to varying degrees. So that far in the future, it's not a huge leap.

So just make it out of that material, then let the bitch rip like you're playing ringworld beyblade.

>>51531560
Good luck getting a ring with a radius of 93 million miles to spin the necessary 3 million miles per hour. Or maintaining a stable orbit. Or protecting it from impacts. And by the by, no material known to man, easily produible or not, would be strong enough for that shit.
And, on top of all these issues, there's the logistics of getting enough people who give a fuck together, have the materials to do anything, and have plenty of time to build a giant ring structure because... reasons...

File: A1VnRJb.jpg (593KB, 2000x1333px) Image search: [Google]

593KB, 2000x1333px

>>51531500
All you have to do is look senpai. Though admittedly, ringworlds are by far the most common.

>>51531506
Frequently, science fiction is allowed to make assumptions about things that don't quite exist as we know them.

But if you want one tamer;

Take a cylinder a mile in diameter, and ten feet thick walls, say? Stretch it all around a star, again, earth's orbit.

Now, sure, you'd think that you'd have issues with the inner side being shorter than the outer side- but actually, as it happens, over a curve the width of Earth's orbit? You could make it out of solid iron, and it would still have plenty of flexbility to "roll". The difference between inner and outer edge is one mile- so 93,000,000 to 93,000,001. No big deal.

Now you pressurize the inside, either run a plasma tube down the center that you can modulate brighter and dimmer for day/night, or cut slits in the side and alternate every sixth of it with transparents or something, so you can get actual daylight in from the star.

>I have a better picture somewhere, but fuck trying to navigate my unsorted scenery folder

>>51531683
> Good luck getting a ring with a radius of 93 million miles to spin the necessary 3 million miles per hour.
Jets. Power them with atomic energy (and I mean real atomic, not the atomic steam-engines of the modern day) and you're good there.

Alternatively, get a shitload of hamsters to run the same way.

> Or maintaining a stable orbit.
Also jets.

> Or protecting it from impacts.
Because the space equivalent of anti-air or anything similar is just beyond a future society considering this.

> And by the by, no material known to man, easily produible or not, would be strong enough for that shit.
Currently? Probably not. Good thing people in the future tend to have a larger database of knowledge available to them than people from the past, huh?

> And, on top of all these issues, there's the logistics of getting enough people who give a fuck together, have the materials to do anything, and have plenty of time to build a giant ring structure because... reasons...
The Earth is going to be swallowed by the Sun one day. I'd argue that anyone on Earth when that starts happening would have no problem moving out.

Most importantly, you seem to be forgetting that this isn't real life. All the arguments I made supporting it may not pass the criticisms of a team of space engineers, but neither you not your players are, and they're more than sufficient as basic explanations that make sense to that end.

>>51531683
>3 million miles per hour
I thought it was more like, 7 km/s.

>>51531432
>spin for gravity
Never understood this argument.
The force is applied to things that are attached to the object, sure. But if you're just standing on it, with no other force to keep you moving with it, it's just gonna spin without you.

File: orbital mekaniks.png (6KB, 368x339px) Image search: [Google]

6KB, 368x339px

>>51531930
The fact that you don't understand it doesn't make it any less viable.

But in an attempt to rectify that, imagine the shitty mspaint star is a person, and the bad curve is a ring.
Do the arrows help?

>>51531930
https://en.wikipedia.org/wiki/Gravitron

File: 1421092530526.jpg (252KB, 1280x720px) Image search: [Google]

252KB, 1280x720px

>>51531938

File: 1421474322168.jpg (118KB, 800x1000px) Image search: [Google]

118KB, 800x1000px

>>51532052

>>51530619
Well with a good telescope I could peep at people from across the world.

File: 1416561280077.png (2MB, 2048x1024px) Image search: [Google]

2MB, 2048x1024px

>>51532062

>>51531993
That assumes constant connection with the surface, and that the only friction is experienced between the person and the surface. He would be getting pushed through air, which reduces that tangential force. Is there something else moving the air along with the surface?

File: orbital mekaniks II.png (8KB, 806x541px) Image search: [Google]

8KB, 806x541px

>>51532086
The understanding is apparently more fundamental.

We're going to talk about orbits today.

Imagine this is an orbit. Ignoring rings. One item, say it's a planet.

Rings aside.

At any point on the orbit, its current velocity is perpendicular to the central star, right? As demonstrated by the arrows and lines? A tangent to the circle of its orbit.

>>51532086
>That assumes constant connection with the surface
>what is inertia/momentum

>Is there something else moving the air along with the surface?
Yeah, the friction of the air against the surface, inducing further movement in the air being moved by that air, etc etc. Over time, the atmosphere would have momentum as well in the direction of rotation.

If you're really that worried about it though, just put some dikes or small paddles along the walls to stir it up a bit as the ring rotates.

>>51531683
The ring world is unstable!

Nah, but your questions are specific enough to hint you have read the books and or the math articles written about Niven's ring.

File: Nasa artwork AC75-1086-1.jpg (209KB, 1904x1481px) Image search: [Google]

209KB, 1904x1481px

>>51532220
As a note, these are legit Nasa concept pieces for showing off their long term plans from back during the space race.

File: Nasa artwork AC75-1883.jpg (959KB, 1884x1473px) Image search: [Google]

959KB, 1884x1473px

>>51532238

File: Nasa artwork AC75-1920.jpg (737KB, 1473x1892px) Image search: [Google]

737KB, 1473x1892px

>>51532247

File: Nasa artwork AC75-2621.jpg (801KB, 1877x1469px) Image search: [Google]

801KB, 1877x1469px

>>51532263

File: jump.png (4KB, 640x400px) Image search: [Google]

4KB, 640x400px

A man on a spinning ring jumps. The ring is quite large.
He continues to move in the direction of the spin. Because the ring is so large, it will be quite some time before he comes down again, because the intersection point of his movement with the surface is so far away.
Depending on the speeds, he may even drift into space before reaching the surface again.

File: Nasa artwork AC78-0330-4.jpg (651KB, 1888x1273px) Image search: [Google]

651KB, 1888x1273px

>>51532278

>>51532290
If the man is experiencing Earth gravity when he jumps he would need to reach Earth escape velocity, you retard.

File: cen.png (2KB, 640x400px) Image search: [Google]

2KB, 640x400px

>>51532329
Centrifugal force is imaginary, he's only actually experiencing centripetal force.

File: 1461564320698.jpg (385KB, 1920x1280px) Image search: [Google]

385KB, 1920x1280px

>>51532479

So, I've heard it said that any civilization with the actual capacity to build a ringworld (Sufficiently durable materials, sufficient quantities of resources, sufficient manufacturing ability, freedom from outside threats for the decades or centuries needed to build it, etc), would not have the need to ever actually build one, due to all those factors meaning they're already basically god-civs with the capability to obtain more living space than any species could ever need, trivially and at much lower cost than building a ringworld, or being able to become post-material super-AIs, depending on one's preference in scifi. How accurate is that assertion, in your opinion?

>>51532406
The ring structure itself would have a ton of mass, so actual, genuine gravity would assist the centripetal action in replicating near earth gravity across the inner surface of the ring world.

File: bS5rq3G.png (3MB, 1920x1080px) Image search: [Google]

3MB, 1920x1080px

>>51532488
Ringworlds are a lot of space.

A LOT of space.

It's hard to convey just how much.

In Known Space, the setting of the book Ringworld, the protagonists calculate that it probably contains about 400,000 times as much surface area as all the actual colonizable planets in known space put together. Which is not a particularly small number, and is in a setting with sufficiently trivial space travel as to have private space ships.

Especially if einstein is a hard limit, making a ringworld is probably a lot easier than colonizing a proportionate amount of the galaxy. Faster, too, sidereal speaking.

>>51532290
>>51532406
You would be right, except that because the ring (and thus him) are spinning so fast, the time it takes for him to reach the intersection point is quite short.
So short, in fact, that it simulates Earth gravity in fact.

If the spin were slower, it would take much longer for him to intersect with the ring, thus simulating a lesser gravity.

>>51532502
Interestingly enough, that's actually wrong, anything inside of a hollow sphere (which can almost be extended to a hollow ring), has no gravitational force exerted on it by the body.

https://en.wikipedia.org/wiki/Shell_theorem

>>51532575
Wow, dyson spheres should be effortless then

Alright anons
If there was a highway on this 1au wide ringworld going all the way around, ignoring rush hour traffic, how long would it take to drive the entire loop in a standard car at standard highway speeds?

>>51532575
>(which can almost be extended to a hollow ring),
Which can also be extended to*

>>51532590
93,000,000,000 * 3.14 /60 mph

>>51532590
Assuming 70 miles per hour as your standard highway speed:

8,342,857 hours
347,619 days
952.4 years

>>51532629
I feel like that's pretty criminally short.

>>51532626
93 million miles is the radius, not diameter.

>>51530619
on a halo*

>>51532584
Not at all; let's say we want to build a dyson shell with a fairly reasonably size of 1 AU, with a thickness of a hundredth of a mile.

It'd be 1,085,900,000,000,000 cubic miles in volume, or about 1.085 quadrillion cubic miles.

The Earth is about 260,000,000,000 cubic miles in volume, or about 260 billion cubic miles.

The shell is equivalent to nearly 4,200 earths in volume, and it's only a little over 50 feet thick.

File: 1 (2).jpg (46KB, 852x480px) Image search: [Google]

46KB, 852x480px

>>51530619
Wonder why i'm not living in a Cube planet

>>51532749
>I feel like that's pretty criminally short.
>nearly a millennium long road trip
>"too short"

File: Screen Shot 2015-07-23 at 7.40.18 PM.png (291KB, 500x383px) Image search: [Google]

291KB, 500x383px

I vote that Humanity's first Ringworld be named Molly.

>>51532803
Maybe my math is wrong.

Oh geeze, my math is wrong. I was doing 93,000,000,000. It's been a long day. I got overexcited with that zero key.

>>51532488
Pretty sure it's not wrong but I'm pretty sure Niven's ringbuilders didn't make it for themselves, it was more of a science experiment

>>51531897
Niven's Ring spins @ 770 mps
It is approx one million miles wide with thousand mile high walls at the rims to hold in the atmo.
It is approx 600,000 miles in circumference.

>>51532185
>The ring world is unstable!
Hush you, Niven space magic solves everything

>>51532923
>It is approx 600,000 miles in circumference.
Now you're just funning me, ain't ya?

>>51532923
>Niven's Ring spins @ 770 mps
And given its radius of 1AU, its angular velocity is TINY

I've been planning out a campaign that would have a significant portion be exploration of the Niven ringworld

>>51532935
>>It is approx 600,000 miles in circumference.
>Now you're just funning me, ain't ya?

Shit Anon, my shitty handwriting made me leave off the last three zeros. Should be 600,000,000 miles.

>>51532953
on a practical human scale, the surface would feel flat with a downward acceleration of .96 gees

>>51532902
The reason why is mostly answered in books 3 and 4, but unreliable narrators might be a thing

>>51530739
>>51531289
>>51531506
>>51531683

Are you fucking retarded? Seriously. Are you fucking retarded?

Niven wrote the book in 1970. There are over a dozen sequels. There is an RPG for it, there are computer games for it, there's even comic books for retards like you who apparently can't read.

The concept has been part of sc-fi for nearly FIFTY years, for neayl as long as "Star Trek", and you don't know anything about it?

Do us all a favor. Stick your head back up your ass and crawl back under that rock, okay?

File: 15e451c2c1e4f58f456560261221e0ac.jpg (240KB, 736x1097px) Image search: [Google]

240KB, 736x1097px

Does Sigil count as a ringworld?

>>51533173
Technically, a torus.

But I think one of the better available worlds would be a pair of dyson spheres one inside the other, and with the 'difference' pressurized into a infinite free-fall bioshell.

File: torins-passage_11.png (45KB, 640x480px)

45KB, 640x480px

>>51533184

>>51533201
Gravity is for pussies.

>>51530619
Seems to me that any Ring World, or any other specifically shaped world, would come about through the need of an experiment that is running.

So how it would be living on a Ring World would heavily depend on what experiment is being conducted.

File: michael whelan_sf_larry niven_the smoke ring.jpg (1MB, 1600x1089px) Image search: [Google]

1MB, 1600x1089px

>>51533237
Could I interest you in freefall babs?

>>51533302
If you're building artificial worlds, I'm pretty sure a ringworld is much more efficient mass to biosphere, than a planet.

Less tectonics too.

>>51531432

Niven Style 2: Electric Boogaloo:

"Bowl of Heaven"-like, where the spin creates gravity, and the atmosphere is held in by a membrane that acts as a bubble.

>>51533319
Integral Trees?

>>51533330
The sequal, Smoke Ring

File: integraltrees.jpg (190KB, 1000x720px) Image search: [Google]

190KB, 1000x720px

>>51533319
I remember finding that book series when I was like, 8 years old.
Shit was a trip for someone who had only read generic fantasy and had just started on Rama at the time. That and the index in the back with allll the math involved.

Would love the setting, running with players who don't know it fully. The little realizations like 'oh shit we're all actually tall lanky elf-like people and those shorties are throwbacks to real humans raised in gravity' would be wonderful to watch.

>>51533363
I regularly read both. The last time was with an eye to use it as a setting so I was trying to grind it into my head how freefall with in the smoke ring worked and why there would be a "tides" on the trees.

I fucking love the concept, haven't read Niven yet though. How in the hell do day and night work?

>>51533473
>I fucking love the concept, haven't read Niven yet though. How in the hell do day and night work?
For the ringworld?
You have shadow screens solar panels orbiting closer to the sun. Right size, distance, speed to give a ~fairly~ earth-like night-day cycle

>>51530619
I would be uncomfortable with the part above me. Like having the feeling that something was going to fall on me at any moment.

>>51532629
>>51532803
In one of the books there was some conan the barbarian type who had decided to go on a quest to "the base of the arch".

He'd stumbled into a sorcerer's stash of booster spice (longevity drug) at some point, and was well over a few centuries old, forever travelling towards one side of the 'arch' without ever reaching it.

>>51533733

It's too far away and too vast to trigger those kinds of feelings. In daylight all you see is distant arcs moving upward until they disappear in sky. At night, you see the sunlit portions of the Ring connecting with the arcs like beads on a string. The natives call it the Arch.

Just as how you can never get closer to a rainbow, the Arch always looks the same no matter how far you travel.

>>51531930
>if earth is spinning, why don't we fall off?
Tie a rope to a bucket of water. Spin the bucket around you. Why doesn't the water fall out of the bucket?

>>51533860
Not that anon but i am way too afraid of heights and cosmic objects to be comfortable as well.

>>51531432
>Air is pulled down just like a planet
That's where you're clueless. Only things touching the ground directly would be accelerated pseudo-downwards (fake gravity)

In one of those spinning carnival rides, air does not fall to the edge of the circle as it spins. Only people being rotated by contact are being accelerated significantly, and it's only that acceleration that results in conservation of angular momentum keeping them pressed against the ride.

Gravity works on air just fine because it doesn't rely on friction or contact, unlike ground movement which would never be able to recreate the other effects of gravity.

>>51537351
>Not that anon but i am way too afraid of heights and cosmic objects to be comfortable as well.

Do you hide when the Moon is in the sky?

>>51537500

Holy shit, you ARE fucking retarded, aren't you?

>>51537500
Fuck off. Air isn't pulled down and neither is anything else because it's the fucking ring accelerating towards air/people on it.
>and it's only that acceleration that results in conservation of angular momentum keeping them pressed against the ride.
ANGULAR MOMENTUM IS CONSERVED EVEN WITHOUT ACCELERATION JUST LIKE MOMENTUM IS CONSERVED WITH OR WITHOUT IT

SEE ME AFTER THE CLASS

File: dyson2.png (783KB, 1016x572px) Image search: [Google]

783KB, 1016x572px

>>51530619
>ringworld

But Dyson Spheres are so much more comfy?

>>51532091
What is that?

>>51537546
No, there is a scale in between. Basically, Mercury, Venus, Earth and Mars are ok. Those sizes doesn't scare me. Jupiter, Saturn and Uranas and Neptune can all go fuck themselves. Seriously, fuck those planets.

>>51532247
What's hilarious about this is that you have constructed the entire environment...so why would you build an environment that needs a giant piece of fallible infrastructure like a bridge?

We use bridges in the real world because we can't easily move lakes and rivers. But if you are building the terrain from scratch it makes no sense, (apart from if you think bridges are aesthetically pleasing).

I'd take the name Mairon and conquer it all, just for the sake of a pun

>>51537844
Hey man, don't bully the jovians. It's not their fault they're like this.

>>51530619
You can't. You can barely imagine the scale of earth.

Here's the scale of Ringworld.

https://www.youtube.com/watch?v=sR2296df-bc

Now try to imagine a Dyson sphere....

>>51531289
>So then what holds the atmosphere?
The same fucking thing that holds the waste of genetic material that is your own body you fucking mong

>>51538231
And here are the walls.

https://www.youtube.com/watch?v=PJIwruvheLA

>>51538216
Maybe if those faggots would have formed closer to the sun in first place.

>>51531506
Going fast enough to simulate gravity would exert exactly 1 g of force on the material.

Seriously kek. How the fuck is this one of the design hurdles.

>>51538323
No. It would exert 1 g of gravity on the surface of the material. The exterior would have a much stronger gravitational effect because the forces pull outwards and you have the weight of all the mat4eial between the surface and the exterior also being pulled away. And it can't be thin, obviously, because then you have much more serious issues.

>>51532806
Yes

>>51537793
>
partially constructed Dyson sphere, i'm guessing. Scale is way too small though, no way you'd be able to see individual landmasses at that distance. Also im not entirely sure if it would work at all if there were a gap that large.
Helps visualise it though.

>>51538231
the map of earth being a place on ringworld was one of my favourite details

>>51538254
The edges of massive ringworld would need walls. Small scale ringworlds need ceilings.

>>51538281
Wouldn't the Spill mountains be much higher though? I always thought the flup came out of tubes about half-way up the walls, and then washed down into the centre

>>51538440
You are wrong.

How do they explain these structures having landmasses and oceans?

>>51538532
I suppose if we are talking about a Niven sized ringworld then gravity would cause the structure to collapse (inward not outward) but realistic sized ringworlds do not have significant gravity.

>>51538733
They get sculpted into the underlying base material and automation recycles eroded soil to be later on redistributed.

>>51538504
Consider those mountains are higher than the atmosphere of the Ringworld itself. They can't get any higher because they are literally thousands and thousands of miles wide and high already.

You get all these space-age ring worlds, but how come fantasy doesn't have them that much? All I can think of is Sigil & that's technically just one city. I mean, Planescape has nested spheres, iron battle cubes, giant gears, and whatever you'd call Bytopia, but I no giant hoops. What are some fantasy settings with giant hoops?

>>51537980
>apart from if you think bridges are aesthetically pleasing).

are they not?

>>51537500
You know, planets spin and still manage to keep their atmosphere....

>>51533487
That's it?
Is any other way possible other than that?

>>51539207
Not if it is orbiting the sun like a conventional ringworld. At which point, even if it has a ring structure, it stops being a ringworld, I think.

>>51533833
Wtf? I don't get it; how can one NOT reach the edge of ringworld?

>>51539096
Might and Magic takes place in a generation ship IIRC

>>51539233
He wasn't trying to get to one of the rims. He was trying to get to the apparent bottom of the arch that the sun is suspended from, which being on a bigassfucking ring will never happen

>>51538231
Hi mind=blown
Ho-ly fuck

>>51538231
I take it nobody is supposed to be able to actually cross that ocean.

>>51538469
>Scale is way too small though, no way you'd be able to see individual landmasses at that distance
Maybe it's built around a white dwarf, you dunno. It'd be a couple orders of magnitude smaller than something built around our own sun.

>>51532290
Sure, just like Earth continues spinning underneath you when you jump, and therefore you can move hundreds of meters to the west with a single leap.

>>51539298
Haven't read; so there's a dwarf star in the middle?

>>51539654
A normal yellow sun

>>51539482
Not to mention the speed it moves through the universe with

>>51531289
>So then what holds the atmosphere?
The walls.

>Or prevents anything from "falling" off the edge?
The walls.

>And, another point, how do you spin a ring that big fast enough to simulate gravity, without destroying it?
Super-strong materials.

>>51531930
>But if you're just standing on it, with no other force to keep you moving with it, it's just gonna spin without you.
You are on the surface of a rotating sphere. What is keeping you attached to that?

>>51533302
In the case of the ringworld, it was a requirement for absurd amounts of living area to stop hyperparanoid super-strong super-smart immortals from wrecking planets in wars against each other.

>>51539777
Nice fucking trips m8
Also, our sun is a yellow dwarf iirc
Anywho, wouldn't that be way too close for heat and gravity?

>>51532484
I enjoy these images a lot more than the "take a photo of a landscape and draw two curved lines in the background" ones.

>>51530619
Why is it fucking bent? How coudl the artist have been that stupid?

>>51543277
>You are on the surface of a rotating sphere. What is keeping you attached to that?
We're on the top of it.

People on the bottom fall off. That's why nobody lives in Antarctica.

File: 1438368395785.jpg (910KB, 1600x1592px) Image search: [Google]

910KB, 1600x1592px

>>51530619
Yes though I would prefer something a little grander

That light in the middle is a star

>>51537656
>>51530619
>>51532062
I'm almost certain that every single image of a halo/orbital, ringworld, and sphere fails to capture what you'd actually see when looking into the sky. Part of this is because modeling software tends to crash when you want to model a ring 600,000,000 miles around, and part is just because these people don't do their research.

>>51543535
>Anywho, wouldn't that be way too close for heat and gravity?
No, because the ring is 2AU across.

>>51531448
How does a topopolis even rotate? Wouldn't the curvature mean it would tear itself apart from having one side of the loop wider than the other, and then it rotates so the inside is wider than the outside?

Like, you've got the inner surface as a small circle and the outer as a big circle, and then you're supposed to switch them?

>>51531492
The sphere is just a sufficiently dense swarm. You're thinking of the shell.

>>51543560
>People on the bottom fall off. That's why nobody lives in Antarctica.

No. People stick on the bottom because the spin of the Earth churns gravity. No one lives in Antarctica because 1) it's a myth and 2) penguins are dicks

>>51543535
>dwarf

Nope. It ain't big, but it won't be a dwarf either for a few billion years.

File: ULkqCIg.gif (1MB, 482x482px) Image search: [Google]

1MB, 482x482px

>>51544146
>it's a myth

I'm glad SOMEBODY in this thread knows what they're talking about

>>51544123
toplopoli don't rotate like a ringworld does; they orbit in freefall around the star, and spin around the long axis like an O'Neill cylinder.

>>51543560
f=G*m1*m2/r^2

>>51544252
Yeah, that's the issue. If it's a loop around the star, then by rotating around the long axis it should suffer from localized compression/expansion as the outer circumference is greater than the inner circumference. Then again, the difference is only 2*π*Δr, and given the massive length of the topopolis it can probably handle it.

>>51544305
I'm not very smart so I had to google that to make sure it wasn't a fancy way of saying gr8 b8 m8

Little disappointed in you, anon.

>>51544354
Fag enabling insanity is /x/'s job

File: ringworld vacation.jpg (86KB, 750x473px) Image search: [Google]

86KB, 750x473px

Someone made a faux-retro vacation ad for Ringworld.

>>51544531
>Someone made a FUCKING TINY faux-retro vacation ad for Ringworld, FOR ANTS.

FTFY. Got a bigger version so we can read the text?

>tfw it's 2016+1 and we're still not building a Dyson Sphere
Huuuge disappointment

>>51531192
The inner side's gravity would be effectively 0 even when spinning. Same problem as a dyson sphere.

>>51532806
Molly Ring-World

>>51544867
Sadly no, this is the biggest version I could extract from behind Instagram's bullshit obfuscatory HTML.

File: slowpoke.gif (15KB, 275x300px) Image search: [Google]

15KB, 275x300px

>>51545467
That's the joke.

File: Ringworld.jpg (384KB, 800x600px) Image search: [Google]

384KB, 800x600px

>>51546149
> Instagram
Eww.

>>51546388
I found it in a Google image search. I despise the service myself.

>>51538440
>Forces pull outwards
Wanna know how I can tell you don't jack shit about what you're talking about?

>>51543765
During the day you wouldn't see very much because of atmospheric scattering.
During the night you wouldn't see very much because of the giant panels blocking the sky.

>>51532406
Both exist and act at the same time.

File: PENGUIN.jpg (39KB, 600x354px) Image search: [Google]

39KB, 600x354px

>>51544146
>2) penguins are dicks
Penguins are not just dicks man.
Penguins are fucking terrifying.

>>51547632
Have you been reading Lovecraft again?

>>51546479
>I don't know what centripetal force is

>>51538231
So

How many people could live on a ringworld?

>>51548060
Every human that has ever lived, all at once, with a population density average like Canada or Australia.

>>51533153
>computer games
There are? What games are these? Are they shit?

>>51548060
Trillions, with plenty of room to spare and room enough for agriculture.

>>51543570
okay when you've got nested belts of 'stuff', shouldn't only the loops around the 'middle' have pull? Or is that intentional so you can have a range of environments?

>>51548691
Unless artificial gravity is involved, or the parts where they join together are gigantic bearings.

>>51548060
A ringworld would have the surface area of about 3 million Earths.

But you can't build one without structural materials stronger than default baryonic matter.

The biggest ring buildable with conventional materials (like carbon nanotubes) is a Bishop ring, which would have a surface area equivalent to the Indian subcontinent.

>>51530619

It'd be pretty fucking sweet. I mean the view every night would be worth it alone along with the fact that you look up and still get an amazing view.

Thread when the fuck is humanity gonna get down to doing cool shit like this?

>>51549155

That is still pretty fuckin amazing.

>>51549318
When we can forge neutronium or create structural reinforcement fields.

>>51532238
Man, they were so ambitious and hopeful back in the day. What a shame.

>>51549373
Yes and no.

Concept art *always* has to look like that if you want to sell it.

>>51549155
But if they're so big where do you get the dirt and shit to build them?

>>51547632
Kill it

>>51549697
Disassemble the parts of your solar system that you aren't using.

>>51549697
Dirt is rocks plus air plus water plus time plus dead shit plus microbes. Any civilization capable of creating a ringworld could synthesize dirt out of asteroids, comets, and a bio lab, or just by ripping up entire planets that would otherwise be permanently uninhabitable.

>>51543553
Fucking this

>>51550130
I'd assume it's just perspective from being closer to one rimwall than the other.

File: cybersyn-room.jpg (153KB, 764x514px) Image search: [Google]

153KB, 764x514px

>>51549409
>Concept art *always* has to look like that if you want to sell it.

https://en.wikipedia.org/wiki/Project_Cybersyn

And if they bite, you have to keep it up!

>>51530619

I dunno, but it kinda rings a bell in my head.

>>51550275
Don't worry, it'll come 'round to you.

So why does everyone seem to fixate on ringworlds with a star in the middle? Why not just make them planet sized with artificial lighting so you're not tied to a star? You could use a much smaller fusion reactor to still give effectively infinite energy to a much, much smaller structure.

>>51530636
Underrated post

>>51550753
This is /tg/ and not /sci/, and the Niven scale ones are fucking cool.

>>51550753
Because then you might as well make space habitats like Rama

>>51550753
They might as well be topopoli at that point. Those can at least be extended indefinitely whenever you feel like.

>>51550869
Nitpick:
"polis" is a Greek, not Roman word, so plural would be "poleis".
It also happens to have been incorporated into English so long ago that "polises" isn't incorrect anymore.

File: RingworldVacationLrg.jpg (99KB, 1019x643px) Image search: [Google]

99KB, 1019x643px

>>51544531
>>51544867
>>51546149
Seriously guys? I literally googled "ringworld vacation" and this was the first image hit.

>>51549697
Just take your solar system apart.

Mars isn't doing much, you know? Smash it up and make it into something useful.

File: deadmeme.png (138KB, 350x350px) Image search: [Google]

138KB, 350x350px

>>51530619
I think it would really throw me for a loop.

File: 1485855085203.png (99KB, 434x496px) Image search: [Google]

99KB, 434x496px

>>51552383
Bastard

File: 1418609871888.gif (966KB, 387x540px) Image search: [Google]

966KB, 387x540px

>>51552383

>>51545262
Gravity, yes. But spinning doesn't generate gravity. Spinning one means you're in one of those annoying "rotating reference frames", and you have centripetal force and the accompanying Reactive centrifugal force people feel that simulates (but is not) gravity.

>>51545262
>>51552806
Also note that what disappears on the inside is the gravitational acceleration from the sphere/ring itself, a sun or planet inside will still be pulling on you like it would on the outside.

File: 100%scientificallyaccurate.png (150KB, 1904x1001px) Image search: [Google]

150KB, 1904x1001px

So rotating plates are supposed to be the method by which to measure day and night, but that seems a rather abrupt method of transitioning from one to another for my tastes. Having the sun behave like an on/off switch is a bit odd.

What I'm wondering though, is if there was a civilization (or multiple races) to develop on a ringworld, would they be able to determine the nature of their world? What would the astronomers of this world look up and gaze upon?

>>51538440
It is 1G of force across the whole ring. Unless it it insanely thick the effective force would be uniform throughout the structure.

Dyson spheres are the mega-structures that actually have to worry about different forces across if they are spinning.

File: Yes I can scourge and purge to this.jpg (49KB, 493x828px) Image search: [Google]

49KB, 493x828px

>>51552383

>>51549139
>or the parts where they join together are gigantic bearings.
That would be pretty fucking awesome

>>51553352
It would be on/off if plates were sliding on top of the walls but they actually are on another smaller ring closer to the sun. So there's some intermediate phase, though it might not be long

>>51553352
>>51553430
Niven does make a point of stating that day-night transitions on the Ringworld are very sudden, they catch the characters by surprise on a couple of occasions.

File: illumination.png (118KB, 1904x1001px) Image search: [Google]

118KB, 1904x1001px

>>51553430
>>51553448
I suppose species could adapt to those conditions given time and possible maintenance.
Would one still be able to see the illuminated sides of the 'sunshades' from a nighttime perspective as they orbited? If they could, then I'd think astronomers could track the daytime spots to determine they lived on a giant ring.

File: 1475627381286.png (725KB, 1024x1024px) Image search: [Google]

725KB, 1024x1024px

Have a megastructure

>>51549697
You take apart an entire solar system for materials, and process it with nanotech to turn it into the ring.
Soil is ground-up rocks with dead things in. You basically get shiploads of your native dirt, pad it out with rocks, and grow crops on it that you then recycle into dead plant matter and animal shit. Then you keep padding it out with ground rocks, and it'll basically spread itself around the ring once you get it down there.

>>51554139
>If they could, then I'd think astronomers could track the daytime spots to determine they lived on a giant ring.

They probably did, until the place was seeded with bacteria that ate superconductors, so it was safe to explore.
The Puppeteers are dicks.

>>51550262
>tfw if not American invasion we would have an Enterprise bridge to command the country

File: nightsky.png (151KB, 1904x1001px) Image search: [Google]

151KB, 1904x1001px

>>51554991
I was thinking more like it was an multi-generational ark ship sort of thing. In this particular model the ring doesn't rotate around the sun because the magic that stops it from collapsing also makes gravity. Only the shadeplates orbit the sun to provide day and night. The whole Ringworld does revolve around the center of the galaxy, at a slightly faster rate than the stars it shares near orbits with. So the night sky isn't technically static, but from the perspective on the surface it would appear the world was travelling through the voids between stars.
Now, my question is, is there a way to design a rimworld so as to not be immediately obvious? I'm thinking this could be a neat setting. Standard thinking for centuries placed the Eye at The Center of the universe, eternally blinking as it voyaged across a still universe. Delving to forgotten depths lead the the discovery of the Understars, revealing what comes to be known as The Second Center, the previously observable galactic center (view was blocked by the ground).
Que church schism and such for drama and such. Or have a peaceful diplomatic transition, who knows.
Adventurers could also travel to other 'planes' through teleporters across the surface. Such a ridiculous amount of surface space practically gives hundreds of planets worth of variety in species, flora, fauna, magic, science, and anything in between packed onto this ringworld.

>>51555515
>observable galactic center
un-observable galactic center*

>>51555515
>is there a way to design a rimworld so as to not be immediately obvious?

Orient it edge-on to the ecliptic plane of the galaxy, and plant clouds of dust (made from shattered planets) around the system.

File: 3d7.gif (500KB, 500x374px) Image search: [Google]

500KB, 500x374px

>>51532153
Small nitpick - a Niven ring isn't actually in orbit of its parent star. This is part of the reason why, as MIT famously discovered, the Ringworld is unstable.

File: FEB23BOWL.jpg (84KB, 500x500px) Image search: [Google]

84KB, 500x500px

>>51531448
Shipstar , a whole Star-megastructure travelling the galaxy

>>51530619
To answer your question, Gregory Benford and Niven answer this in Shipstar-it is somewhat similar mega-structure, but anchored to gravitional pull of super-fast Star.

The society is very strict and conservative, fashions are allowed but overall shape of society and beliefs are enforced in draconian ways-simply because such a structure requires constant upkeep and in scale of millenia a group going against consensus can destroy it.
You would also have strong population control to keep the biosphere from being eventually overrun.

The whole structure is more of a park than a living habitat, with continent wide reservations for certain planetary biospheres or climates.

>>51554991
Ringworlds, Dyson Spheres though don't allow for civilization to restart itself, as there will be little natural resources to use like iron deposits or coal.

>>51530619
Pouring liquids or throwing balls would be a bitch. You'd have to aim about 45 degrees from where you want it to land.

>>51556963
Why?

>>51556915
Planets don't either.

Well, to be fair, eventually they do, but people aren't usually willing to wait a few million years for more iron to well up from below. Currently, most of the easy-to-access iron etc has been used up on Earth.

>>51556915

Congratulations, Skippy. You just thought of the same plot point Niven did nearly 50 years ago.

>>51557621
I mean, if you're assuming the crazy OP bullshit that allows you to build a ringworld in the first place, why not some artificial tectonics and subduction?

Alternately, why not quarantine different sectors of the ring to avoid, say, sociopathic herbivores from sneaking superconductor-eating-microbes onto your space habitat?

>>51532091

Let's put on our thinking caps, shall we?

Look at the file name; Apotheosis Now. What does the word apotheosis mean? It refers to becoming a deity or making something divine.

What do gods always do? They create, right? They're responsible for "Creation"? They're responsible for making the "World"?

Back to the picture. They building something obviously. Is it a Dyson Sphere? Don't you live on the INSIDE of a Dyson Sphere? The sphere being built in the picture has continents and seas on the outside though.

What's in the middle? It doesn't look like a star what with those filaments and everything. A working planet needs plate tectonics and a magnetic field both of which are powered by a molten core.

What else are they building? It looks like a moon, doesn't it? Craters and mares and everything. It's nearly finished too, maybe because it's smaller.

Maybe the picture is referring to the builders becoming "gods" because they're "creating" a "world"?

Nah, it couldn't be that easy.

>>51539115
>You know, planets spin and still manage to keep their atmosphere....
Isn't Earth slowly losing atmosphere?

>>51557712
>I mean, if you're assuming the crazy OP bullshit that allows you to build a ringworld in the first place, why not some artificial tectonics and subduction?

What is flup and the spill mountains?

>Alternately, why not quarantine different sectors of the ring to avoid, say, sociopathic herbivores from sneaking superconductor-eating-microbes onto your space habitat?

Because as a Pak Protector you thought you and your fellow Protectors would still be around to defend it?

All the hominid evolution, the superconductor plague, the rim motors being "borrowed", all of that happened long after the Protector "Defense & Maintenance crew" died off.

>>51557784
That's more due to ozone thinning allowing solar winds to strip it, but the rate is such that we should be more concerned with the sun going nova than running out of air.
This doesn't take into account the quality of said air, but yea...

>>51557784
Sure. But it's sufficient for life, innit?

File: SYNCO-Baradit.jpg (68KB, 479x695px) Image search: [Google]

68KB, 479x695px

>>51555088
>tfw if not American invasion we would have an Enterprise bridge to command the country
Have you ever read this? My Spanish is probably too poor to enjoy it, but I'm really hoping someone puts out an English translation someday.

>>51557545
>Currently, most of the easy-to-access iron etc has been used up on Earth.

No it hasn't. Even deep mining is 'easy to access' compared to where most of the metals are.
If it's still embedded in the crust, it's easy to access.

Which, really, is why we have to get to mining asteroids ASAP, before we run the fuck out of stuff that's easy to access and have to crack the crust of our only planet open to get more metals to consume.

Also, metal is not 'used up', for the most part. It's still around, mostly still usable, and gaining value. Start mining old landfill sites for scrap metals.

File: förhelvete.jpg (21KB, 306x306px) Image search: [Google]

21KB, 306x306px

>>51532484
>spend all those resources making earth like habitable space stations
>make it all tundra

>>51557897
Easy to access for a pre-technic civilization, ie, on or very close to the surface. (and readily apparent)

Which would also limit their ability to recycle scrap or detritus. Melting point of steel is a bit higher than iron.

>>51531930
Things that are moving go in a straight line unless acted upon by outside forces. When you're on the inner side of the ring and moving with it, this simulates gravity; your body tries to keep flying in a straight line, but the ring keeps getting in the way, simulating a constant downward force.

>>51530619

they are often depicted as being somekind of idilic simulated earthly landscape, with people living in some kind of suburbia/neoclassical villas, it probably wouldnt be like that

>>51532798
I've always wondered what the gravity on a world like that would be like.

>>51557936
Maybe you don't have enough resources. Maybe you have to cover it in snow to cover up all the unfinished bits.

File: 1378137745430.gif (831KB, 500x487px) Image search: [Google]

831KB, 500x487px

>>51538231
Unsettling.

>>51557936
It's how you know that somewhere, someone, isn't getting payed enough for this shit.

>>51531432
I see an issue with the spinning thing. Namely that it would have to be spinning insanely fast for this work.

I'm not 100% certain on the math, someone else is going to have to do it. But the point is that it'll have to be, like, way faster than the speed at which the Earth spins around the Sun, assuming a ring with a raduis equal to that of the Earth's orbit around the Sun.

>>51538231
The storms that would build up on an ocean of that size would be beyond comprehension. "Super" doesn't even begin to cover it.

>>51558196
Like say, 7 km/s?

File: accelerated world 2.jpg (485KB, 1920x1340px) Image search: [Google]

485KB, 1920x1340px

>>51556769
my nigga

>>51543570
That's an asshole thing to do to a star

File: accelerated world 3.jpg (351KB, 1920x1340px) Image search: [Google]

351KB, 1920x1340px

>>51558332

>>51558196
I just looked up a calculate for this
http://www.artificial-gravity.com/sw/SpinCalc/

For 1 AU the earth's orbit, we are talking about a spin of 4,360,392km/h, or 1,211km/s, or a bit more than 40 times faster than the earth moves around the sun.
Course I could have fucked up as I was just copy pasting numbers about between the calculate, and a conversion website, it would not be the first time I fucked up a decimal placement in doing that.

>>51557737
Niven and Benford pointed out in Shipstar that there could be multitude societies in Megastructure, there could be corridors and tunnels in structure itself that would have civilizations, you could have entities living on exterior(synths, vacuum organisms) and energy beings existing in magnetosphere.

>>51558332
Source?

>>51538231
How would climate work on a surface like this? Would the extremities be like the poles?

I hope the makers also carve some mountains and more geographical features, having only huge plains would be horrible.

>>51557737
>Don't you live on the INSIDE of a Dyson Sphere?
No, you don't. The inside of the sphere is for energy collection, the dyson sphere has always been a massive energy collector that amounts to having a really big fusion reactor, the inside being the reaction chamber. Also you doesn't need tectonics or a magnetic field, the magnetic field is to protect from the star, and tectonics allow for the heat from inside the planet to escape slowly over time rather than in short bursts that melt the crust. Besides if you have a star inside a sphere like that it will have a powerful magnetic field, and you would be generating plenty of energy to produce your own magnetic field for whatever purpose you want.

As for the filaments I thought those were meant as some sort of control over the star, so that the star doesn't collide with the walls. The moon as you refer to it, I always thought that was them taking some celestial body apart for resources rather than building something.

What nobody seems to ever question is debris.
We have an atmosphere of about 300 miles.
And thick enough that most small things to burn up.
Anything like a ringworld/shell/cylinder/ect... would be bombarded to obliteration. Especially if it had a star in the middle attracting everything toward it.

I guess that's why it's SF.

>>51558897
When you have conquered the challenge of just building a 1 au ringworld, or shell you don't need to worry about debris, because you are talking about a structure that needs to be stronger than the strong nuclear force.

For other structures you are mostly talking about having some shielding on them, basically just metal armor, or one of the more modern ideas like gas filled bags. Either way though your solution to debris is, go out and fix the damage when it happens, maybe try and shoot some of it down, or try to fly out of the way of things that are too large, or stick an engine on the large things to try to fly them out of the way of you.

>>51558897
Niven specifcally mentioned Ringworld makers cleaning up the void around them

>>51558983
>you are talking about a structure that needs to be stronger than the strong nuclear force.
Tensile strength of a material would mean nothing when it came to impact.

Strong nuclear force is nothing compared to a 50 mile wide meteor moving 25 kilometers per second.

Heck, if the hypothetical material is as strong as you presume, it would be impossible to work with in the first place. You couldn't even cut into it or shape it.

And that's not even getting into stuff striking the inside of the ring. Gravity assisted meteorite slingshotted by the sun directly into your habitation area. Yeah, welcome to multi-kiloton nuclear explosion directly on your population. And good luck with your space material sustaining that impact. Much less something like an entire meteor shower.

>>51559247
>Strong nuclear force is nothing compared to a 50 mile wide meteor moving 25 kilometers per second.
Yes it is, the strong nuclear force is much stronger than that, seeing that no such meteor would ever have it's atomic nuclei broken apart by it impacting a planet or other similar object. You aren't even likely to see fusion taking place by such an impact and that's only overcoming the weak nuclear force. Seriously anon the strong nuclear force is some crazy shit.

>>51559409
It's the chemical bonds between atoms that would hold a super structure like a ringworld together. Not strong nuclear force. What makes things like nanotubes so strong is because of the carbon bonds.

You couldn't even make something the size of a gain of sand that was one continuous chain of protons/neutrons. And even if you could, all the matter in our solar system would be nowhere near 1 au. I'm no math expert, but you'd probably be lucky if the mass of our whole solar system was even the size of a small country.

>>51559706
You're missing something here, the strength you would need in those chemical bonds for a structure like that has to be greater than the strong nuclear force, not you need to use the strong nuclear force. There isn't even a theoretical method to try and achieve that level of strength in a material that could be used for something like this.

>>51559781
I totally agree. You'd need massive particle accelerators mashing thousands of atoms into it just to break the chemical bonds in said material.
It's entirely infeasible.

>>51558983
Wait, why would a ring need to made of hyper-mega-adamantium?

>ring with no spin would feel only compressive force of gravity as all parts try to fall in a straight line toward the sun
>ring with too much spin feels expansive forces that cause it to try to pull apart
>ring with right amount of spin mostly balances those two forces

The third option isn't impossible, and, by spinning at all, it would mimic some amount of gravity (not an Earth-like 1G, but not 0 either).

The "super-high walls to keep atmosphere inside" thing is the part that seems retarded, since you could just have a dome over your head for the same effect.

>>51530619
>how could you imagine living on a ringworld
I'd close my eyes and think really hard

>>51560257
It would be spinning at an insane rate in order to provide spin gravity, though.
And the walls are the most sensible solution, considering that they also serve the purpose of recycling all the soil that slides down into the seas.

>>51560257
If I tie each of your arms to two cars and tell each of the drivers to go in opposite directions at the same speed, does that mean it's canceled out and you experience nothing?

>>51558160
>it's actually just the outsides of the cooling machines, and the "ice caps" are just the frost that forms around the inside of your freezer

Would the "arch" of the other side of the ring actually be visible from the ground?

>>51560257
The issue is that we are wanting the 1g, throwing that out does of course make things easier. Besides the numbers that came up with that need were for the 1 AU distance. A smaller ring requires less, and a larger one more.

>>51560477
Probably not, at least during the day. Atmosphere seems like it would get in the way.

>>51560553
And a million mile wide band, being viewed at 200,000,000 miles....

>>51558057
weaker at the corners, stronger in the middle of the surfaces i would think.

>>51560477
Depends on the width. If we assume the radius of the ring is about the same as the habitable zone where the earth orbits...

Then it would need to be wider than the diameter of the earth for sure.
The sun has a 1.4million kilometer diameter, and it looks to be a decent size in the sky... That would represent the half way point.

So you could easily see the arch on the other side if it's width across was about the diameter of the sun.

>>51560347
Zero spin = experiences only gravity trying to drag it down toward the sun.

Too much spin = centrifugal pseudoforce is too great and ring breaks apart

Perfect amount of spin, which we know exists between "zero" and "too much" due to the intermediate value theorem, says at some spin rate those two forces (inward compressing it, outward stretching it) are equal.

How much G is feasible within that window is a different question, as >>51560509 said. Realistic spinning rates might top off at giving you only a tenth of Earth's gravity or something minuscule.

So what system besides GURPS would you say is best to run a game about people exploring the remains of a fallen supertech society on a megastructure?

Numenera? Savage Worlds? BRP?

>>51560837
I think GURPS had a ringworld supplement at some point.

But honestly, clearly you should run an ERP game for maximum rishathra

>>51560837
>fallen
At that stage and with that level of command of the stars it would be virtually impossible for a species to die out/fall.
Even if they found somewhere else to go, their numbers would be in the quadrillion's and surely some would remain. And by some I mean substantially more than the entire population of the earth.
If they were destroyed by someone else, well... The "someone else" would be around and would be clearly more powerful.

The only realistic story would be having these megastructures be obsolete/discarded because they moved on to harassing black holes or something. But I think it would still be difficult to justify it not being somewhat occupied.

>>51561055
This is going to sound very rude, but so what? There's plenty of compelling reasons as to why a setting's ringbuilders fell / regressed/ disappeared. Heck maybe it can always stay a mystery littered with contradictions. Is the godlike AI telling the truth when it claims to be the post-singularity gestalt consciousness of the Builders? Or is it lying, and was actually the one that masterminded the doomed trans-dimensional colonization program that shattered their civilization? Are the people that live scattered across the ring's surface the remains of these precursors, or transplants from an earlier era, brought there for some strange purpose?

t;dr, It's fiction. Make something up.

>>51561055
On the Ringworld, the protectors enforcing the single-species prehistoric stasis wiped each other out in a war, and the civilisations that rose from the subsequent uncontrolled evolutions had no knowledge of how to build a ringworld, and couldn't recover from the superconductor-eating plague.

It all depends on whether the ones who built it are the ones living on it.

>>51561055
>their numbers would be in the quadrillion's and surely some would remain
I don't like this idea. Technology enables the individual to do more and to be more independent from society. A sufficiently advanced race would be made up maybe a couple of millions of individuals leading solitary lives in their corner of the galaxy with fleets of robotic servants tending to their needs and wants.

As soon as you don't need help from other people to undertake massive projects, why would you keep them around?

>>51563345
>As soon as you don't need help from other people to undertake massive projects, why would you keep them around?
Because most people go crazy if you don't. At least it feels like it.

>>51563661
Don't use modern humans as a measuring stick for hyper-advanced civilizations.

Hell, look at how Asimov's spacers live and they're not super advanced.

Also I figure that most members of a hyper-advanced race would be quite crazy by today's standards.

>>51531847
Just wanted to say that the difference between the inner and outer edges would be 2*pi or about 6.28 miles

File: angry marine.gif (212KB, 525x525px) Image search: [Google]

212KB, 525x525px

>>51558332
>>51558341
>2 and 3
>doesn't post 1

>>51530619
I would actually love to live in a ringworld, but one built by the Forerunners, and not encircling a star. Too much ring for me. I like the idea that given a reasonable amount of time, I could circumnavigate the entire thing.

>>51558897
Again, Ringworld mentioned it.
>>51559039
After the Protectors died out and stopped "cleaning up space", something hit the ring (it's been a while since I've read it; wasn't it a planet-sized object?), made a frikkin' gigantic mountain, and also kicked it out of position so it started wobbling.

>>51531306
/thread

>>51530636
First post best post

>>51564355
A mile in diameter.
Diaaaameter.

>>51543570

An armillary world?

>>51530619
Faffing about in a box canyon in the middle of nowhere, wondering why we're here.

>>51530619
It'd be tough with the circular logic involved.

File: 1485898027686.jpg (152KB, 419x419px) Image search: [Google]

152KB, 419x419px

>>51569435
Carlos pls.

>>51569380
iunderstoodthatreference.apng

>>51533153
>>51531192

take your pills, holy fuck

>>51570317
>implying there are pills for autism

I mean sure there are some antipsychotics that make people pretty quiet, and one that works on Tourette's but I don't think it would help those anons.

>>51566173
Fist-of-god mountain was something the size of Luna smashing up from the bottom of the ring.

That didn't knock it off-balance, though. The ringworld is inherently unstable, and needed the superconductor grid (eaten by engineered plague) and attitude jets (dismounted for use as spacecraft) to adjust it.

>>51563715
You know, some people actually like the idea of having friends and living in cities.

>>51557784
They're mining from the moon to build the sphere, not building it.

>>51571374
Meant to reply to>>51557737

>>51570402
The grid wasn't eaten; it's embedded within the scrith, It's explicitly stated to still be fine in the later books. The superconductor used by the City Builders was eaten because it was exposed.

>>51530619
One day I shall reach the base of the great arc that is the sky

>>51532220
>>51532238
>>51532247
Elite Dangerous has these types of ring world space stations you can dock into.
A shame that you can't actually explore their innards though.

Thread theme
https://www.youtube.com/watch?v=e6JK3fhYE1w

>>51546580
>day
That's the thing, the atmosphere effect (light scattered in the atmosphere doesn't seem to be overpowering the light reflecting off the other parts of the ring correctly/enough, but I also don't know the hard science of this irradiance off-hand).
>night
That's when you'd see it in all its glory. The panel is millions of miles away, man.

>>51550854
Rama is fucking awesome too though.

>>51557737
I was thinking they were mining the moon and using it to build the dyson sphere

>>51531560
>I don't think it's a stretch

Actually scrith is an "unreasonably strong material" by even supertech sci fi standards. Niven admits this.

>>51571417
I thought they had to send nanites around putting it back in?

It's confusing dealing with all the retcons and people lying. Especially because I was chewing through Known Space in chronological order.

>>51562619
The protectors were bloody retards desu.

>>51572078
No, they were super-duper smart and just couldn't see past the end of their spear long enough to stop killing each other and help the race as a whole while they still had descendants.

That's why they needed to be massacred/redirected after they fled the core explosion at sublight speeds.

File: 1463831948910-b.gif (31KB, 500x492px) Image search: [Google]

31KB, 500x492px

>there will never be another forge world as magical as Reach
>you will never go back to playing forge all night with your friends
>you will never feel the butterflies in your stomach as you look around the world's atmosphere

I wish I could play a campaign where I can have just one more night of all my friends getting together playing Reach.

Thanks /tg/

>>51572089
>No, they were super-duper smart and just couldn't see past the end of their spear long enough to stop killing each other and help the race as a whole while they still had descendants.

So they were bloody retards.

>>51572124
High INT, low WIS.

>>51532902
>it was more of a science experiment
> science experiment
>the Pak

Nah. They're fractious and territorial as all fuck but also superintelligent. The ring provides quasi inexhaustible living space for their descendants and is fragile enough that the residents are incentivized not to fight wars on it.

>>51572187
Then why did the protectors die out?

so when do we kick the Hive off of the moon for good

>>51572608

Insufficient Data. The Ringworld survived so it wasn't a hot war, but Protectors being protectors one probably figured out how to make a plague that killed all the others.

Honestly it's mostly Plot that needs them out of the way, else Ringworld would be a very short book. I'm mostly a fan of the first two, the third one came along too much time after the first two and had too many retcons, though Protector Louis was interesting. Space monsters that eat ships in hyperspace is retarded though, I can take it from Schlock Mercenary but not Larry Niven.

>>51572738
>Space monsters that eat ships in hyperspace is retarded though
Oh, that got retconned out in the Fleet of Worlds series that was written much more recently.

>>51550218
NO
Just no