Always happy to see the Culture get attention. Such a rich sci-fi universe that has been woefully untapped in visual mediums. I would love to see Blur Studios really sink their teeth into it.

Cool! Thank you!

KI VOICE

I also don't know I how the spin gravity on ceres and Eros for that matter in the Expanse are supposed to work. Because the station would definetle, spin itself appear. (most materials even don't have that kind of tensile strength , so it would definitely be a problem). Also the Expanse describes the correolis fore as getting stronger as you get closer to the Axis of rotation. However the coriolis force is only dependent on the angular velocity ω of the rotation and radial velocity v_r (how fast you are moving away from the Axis of rotation) in the rotation frame of reference. F_coreolis = 2 * v_r * ω While it is true that for a smaller Radius the correolis force will become more of a concern, this is only because a higher angular velocity is required to achieve the same spin gravity. g_spin = ω² * R The only way this makes sense to me if there were multiple nested sections each spinning at a different speed. Gravity on the other hand is not mention to change significantly with the distance from the center.

My favourite part is when the giant ring world's get built. How fast are they getting built?

Thank you, cool video. I found renewed confidence in my cylindrical sci-fi world concept somewhat.

Where's the Citadel from Mass Effect

Dean's space station from 007 movie, moonraker

Isn't Babylon 5 supposed to be 5 miles long? It looks too small here.

What about the ship from that Chris Pratt movie?

Instead of cylinders or circles, why can’t we build a sphere and/or what would the issue be with building a sphere? Like a planet? ***Legitimate question***

Don't forget about the time dilation effect to the inhabitants traveling millions of miles per hour. While I don't think it would be that much, maybe a few seconds or dozens of seconds per year, it would still need to be accounted for.

Scott Siglers Galactic football league series as well as his alive series both are very interesting

what if the ringwold keeps its orbit centered using solar sails. with atleast 2 satellites near the sun, they send coordinates to the ring on where the center of the ring is to keep it centered with the sun by translating the coordinates into opening/closing of these solar sails, attached to the sides of the ring, expanding its surface area with a reflective mirror so it pushes the ring. another way is probably making the ring flexible, bending on its own it can make certain parts of the ring closer to the sun, pulling itself "in" then pulling itself out to stabilize the orbit, at such scale i think a little is alot

Artificial gravity can be had at many amusement parks and theme parks

Well this video got me started on the expanse again 😅

as a scifi noob, and a climate scientist irl, which of these books that are mentioned are actually good? Have read the Dune Trilogy and want some more.

Imagine a fantasy world set on a massive ring world

Spin is not gravity.

Another limiting factor for very small ships/stations is gravity difference between body parts.

The Halo arrays actually do spin edgewards and slightly offset towards the star to provide a day/night cycle. Cortana mentions in the second level of Halo CE that the Truth and Reconciliation (the Covenant ship where Captain Keyes and his command staff were being held captive) had touched down 300km in the "upspin" direction from where Master Chief's fireteam was at the time, indicating that the rings do rotate. So we take the ring's diameter of 10,000km and assume a 24h cycle, which comes to ~0.00069 RPM, you end up with a psudogravity of ~0.00027g, which is so negligible as to hardly be worth factoring. So they're definitely using "Handwavium" generators to provide gravity. The reason they're built as rings is because of the mechanisms of the superweapon itself, the energy pulse forms in the centre of the ring, fed by generators along the circumference.

and the downside is that we earthlings cant build anything more in mass than the earth...currently...we just don't have the material.

the only one I noticed you missed were the Earth Force ships from Babylon 5, that used a rotating section to provide gravity. Oddly, instead of making it in a continuous ring, the rotating section was a pair of compartments opposite each other, kind of like a fat propeller. I don't think they did that for any specific reason, I believe it was just designed that way to be different.

Scifi recommendation: The fear saga. First book is called Fear the Sky. It's an alien invasion story that reads a bit like a spy novel.

6th recommendation for Neal Stephenson's "Seveneves". While it's true he can't write an ending to save his life and his horniness sometimes gets the better of him, he did do a bit of research to depict the arclet-pairings (similar to Project Hail Mary's slingshots) and the proto-ring station. It would be really interesting to see an actual representation and explanation of the numerous gravity-based platforms described in the book: the "giant foot" hangars in LEO, the whip-stations to get your velocity into sync with the ring, The Eye, The Cradle, etc.

There is an RPG from a company named Dream Pod 9, called Jovian Chronicles. In it they use several different types of spinner colonies. O'Neil types, also used in the anime series' Gundam, for Earth obit stations. These are often around 50k in length a kilometer or two in width, and alternaing panels of solid and clear sections to allow light in. Mirrors are used to direct light or close off to create a day/night cycle. The second primary station is a Vivarium. Used in harder radiation parts of the Solar system. Jupiter being the primay. They are closed and heavily shielded.

Dyson’s sphere. Twat.

Nerd

7:00 it's so it can generate a signal, it's basically a huge antenna.

What about the station from Creator

For a really nostalgic trip into early Sci-Fi, check out E. E. Smith’s The Lensmen series of novels! My father used to tell me that this was where George Lucas got the idea of Star Wars, but I think that is kind of a stretch…. Good old fashioned fun!

Yeah, seeing as gravity has more effect the closer an object is to the source of the gravity acting upon it, any error in the ringworld's 'orbit' would escalate exponentially.

Gaea Series by John Varley, not sure of the size but I am interested in where it would fit.

With electromagnetic fields, it is easier to achieve.

Students also figured out how to build the Ringworld: you have to think of it as a suspension bridge with no ends.

For sleeper sci-fi recommendations, it's more of an online wiki than a proper book but Orion's Arm is an interesting one

You left out Dyson sphere STNG From the episode Relic

Dyson Sphere

Where do they source the materials such as bulschitium?

I think you are forgetting coriolis forces

Bobiverse _and_ Culture in one Video?

I really love the commentary. It gives some nice context which makes the video more interesting

Isn't the probe in Star Trek a fictional Voyager 6?

I came to learn about it's all about SciFi movies ... I don't get the relaionship between the rotation and expereince of gravety to the human resudents, surely that relationship only exists as liong as their feet are on the 'ground' ? Otherwise these huge objects will just spin around them?

Citadel or hyperion from mass effect worth mentuoning as well

Babylon 5 mentioned, what the fuck is z'ha'dum !?!?!

I can't believe Halos rings don't make gravity by inertia, it feels nonsensical and such a wasted opportunity

Cooper Station didn't have spin gravity, it had artificial gravity due to Murphy Cooper unlocking the key to gravity control, with some timely assistance from her dad.

No love for John Varley's Gaia?

The Bobiverse you’re such a great series and I wish more people would knew about it. I’m glad you brought it up. You’re the first person I’ve ever heard talk about it or mention it.