There has to be an Error here. If the hail Mary generates 1g with 100m diameter and 4.2 rpm. How can the 2001 space station at 3 times the diameter and 1/4 the Rpm only generate 1/7 of the g-force?

fun and relaxing , thx

From which literature do you get the Dune locations? 🐛

what about dyson spheres?

Dyson Sphere from Star Trek:TNG "relics" 200 million kilometers in diameter, inner surface area of 1.257x10^17 square kilometers

that was a cool video even if I didn't learn anything new

Lol, you called Dune "hard Sci fi". Sure. and so Is harry potter. right? Which part is the scientific part? When the man turns into a worm? The spice that lets you see the future? The spice that lets you warp space? The spice that makes your eyes turn blue? The Giant worms that live on a planet with no food? The weirding way? The tleilaxu? The bene gesserite? The ixians? I love dune, but its about as hard of sci fi as hitchhikers guide.

There us also the station from the film Passengers. Don't think is as big as the ringworld, but I guess still worth noting

Wow. This is the space-nerdiest video i've ever seen. I love it! Neil Degrasse Tyson would approve.

A maneuver is what makes you a captain.

While understandable considering most of the examples are from video or literature, but considering Halo is there I'm a little curious why The Stranger from Outer Wilds isn't

There's the artifact in the Xeelee books, a giant series of rings surrounding the black hole at the centre of the Milky Way galaxy. It's a light year across and the outermost ring actually spins at relativistic speeds.

Ceres also creates it's gravity in the old fashioned way, it pulls in, but it's very very low. So the Expanse solution is to spin it up to create outward acceleration. I'm sure they had to use a whole lot of glue to keep the thing together. Edit 1: The comment about the (constant) tangential velocity on Ceres creating too high stress doesn't make sense. The only thing it creates is the 0.3g gravity, which is nothing to worry about, no? Edit 2: The ring does not cast a shadow on itself if it's only tilted. The inner ring casts a shadow on the outer ring, as the graphics shows (which makes sense). Edit 2.1: Ah I get it, the small dot in the center of the ring is NOT a sun. Ok then.

Nice!

I guess we also need to add in the effort to mine the local solar system for enough material to build a structure thousands of times Earth's volume -- moving all that material to the location to add it to the structure, all the spacecraft necessary to mine and move that amount of material, over what period of time one would expect structures like that can be built. And I guess who's going to pay for it.

Thanks for including C.J. Cherryh.

Hopefully we will discover a way to provide artificial gravity as depicted in sci fi films. This spinning idea to provide gravity is rather silly and impractical.

I know this is a year old, but just wanted to mention that the movie Passengers is happening when its passing the star Arcturus which you mention in this video.

Algol was also in Phantasy Star series.

you missed the points that stargate never said the stargates address is the actual star constellation and actual position of the target, instead it was explicitly said it was just the first thought and idea and that they have to recalculate all addresses over time and they loose connection to some

So happy to see Heavens River in this! It would have been nice to see more emphasis on how gravity is simulated in Heavens River since it's not based on how fast it rotates around the star but by the inner cylinder rotating.

The ringworld is dwarfed by the megastructure from Blame!, supposedly a sphere at least the size of Jupiter's orbit

I once read a story about a real Dyson sphere with a radius of one AU, dwarfing Ringworld. It was meant as a trap for intelligent species who discovered it, and left the rest of the galaxy/universe to the builders.

Battlestar Galactica?

343 Studios shit the bed with the Halo series. It was mainly the writing.

Not sure where he is getting his 1RPM figure. Everything I have seen suggests anything under 3 rpm is good for most subjects (people). I could be wrong. Maybe there are new studies. Also, I think the minimum G for comfort is pretty well-established as about 0.3 G. This is from memory and, again, I may be wrong. "Comfort" here means both immediately comfortable and lacking SERIOUS longer-term consequences. Thus, if we inhabit the Moon, we will need to do something about this.

I've heard it called the eye of god, but never the eye of sauron before.

project hail mary reference!!!!!!

What about the Avalon from the movie Passengers?

Starship troopers was an insight into military life. Those who are willing to give all for the many.. The movie, while awesome, poked fun at propaganda. Still excellent in it's way BUT, you should read the book.

I never even considered that our solar system wouldn't have the same alignment as the galactic plane. That's fascinating.

I’d love to set something like this for Elite: Dangerous. I love the space stations they have and the logic that you put the hangar in the centre so you have low gravity and can lift heavy components with relative ease, and the farther out towards the edges you get, the closer you are to 1g, and the more expensive the accommodation gets.

I have read all of the Ringworld books except for the very latest one. One thing that I think Larry Niven did not consider is that perhaps the Pak Engineers could have saved themselves a bit of work by making a slightly smaller Ringworld around a dimmer lower-mass star.

This video just got 117k views. That's crazy xd

You forgot Bob Shaw’s Dyson sphere in his book Orbitsville. Now there is a megastructure that makes Ringworld look like a child’s toy!

subnertica

Neat.

Why not include a Dyson Sphere?

I wish a solar system like this could exist and that we can get to it.

All but 1 of original rings were destroyed, the original ark was destroyed as well, which is what led us to get the new set of rings and the lesser arc

For Gundam fans: The UC Sides (aka O'Neill Island Threes) are stated in the wiki to be on average 6.4 kilometers in diameter and 36 kilometers in length. So they would fit inside Rama while still dwarfing Cooper Station.

I reccomend revlation sapce and aurora rising, both by alastair reynolds

“I’m done with halo” 10 seconds later: Here’s the original halo for scale!

In zero gravity, a person can feel artificial gravity if his or her feet are fixed to a rotating cylinder or sitting in a chair fixed to a rotating body. However, if it is not fixed, the barrel will spin and the person will just float in the air. Jogging In a spinning wheel is a physical mistake made in movies.

I'm very surprised by the low g on the Babylon 5 station

There's a Dyson Sphere in the Star Trek TNG episode Relics.

Halo is a weapon first and foremost, that dictates it's shape.

Velocity has nothing to do with anything. You should calculate hoop stress. Why no mention of coriolis?

Music bad. Repetitive Music very bad.

I'm a fan of the "one big lie" on the scale of "sci-fi hardness".