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Space Busters | Can We Build Artificial Gravity in SE? | Space Engineers
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- Опубліковано 3 лют 2020
- Space Engineers has a few different kinds of gravity generators you can build. But these seem to work on magic alone. Can we build a machine that produces artificial gravity in Space Engineers using just physics? In this episode of Space Busters, that's what we're here to find out!
Artificial Gravity via Rotation. It theoretically works in real life, but what about in Space Engineers? The first part of this video is building and exploring if artificial gravity works. The second part of this video is an explanation for how the rotational artificial gravity works in real life. Enjoy :)
Wanna try it out for yourself? Subscribe to the workshop blueprint! I've added buttons in the wheel to help control the movement from inside. Enjoy!
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If you like the video, be sure to leave comments and hit that like button! That's how I know to make more of these!
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I did that back when there where no magnetic boots, it was way better, it literally pushed you feet first to the ground, it was super awesome!
he could have also have put on a super weak gravity generator so the boots would not turn on
You wouldn't have been able to actually walk though, so how was it better?
Same, I was attempting to build a Dyson ring.
I think I saw a mod once that prevents the magnetic boots from activating.
If you'd like to make a more in depth analysis. Jump when running in the same direction as the rotation and compare to jumping if you're running against the direction of rotation.
This is a problem with rotating rooms on Earth. Also your feet and head will be under different levels of artificial gravity.
You don't need to jump up and down to know how many g's you generate, all you need is the radius (which, if you built it, shouldn't be too hard), and your tangential velocity (which should be equal to the velocity shown by the game itself). If you know this, your g-force is equal to:
g-force = v²/(rg)
Where v is your tangential velocity, r is the radius, and g is standard gravity (9.81 m/s²).
At around 13:10, we can see that the tangential velocity is v ~103 m/s
Judging by how the ship looks, I estimate the outer radius to be ~21 blocks from the COR. Considering every block is 2.5m, this gives us r ~52.5m.
This gives us everything we need to calculate the g-forces your character would experience:
g = (103 m/s)²/(52.5m * 9.81 m/s²) = 20.599g, or over 20 times the force of gravity on earth. Yes, you'd be dead indeed.
Aaaaand we got a physicist here
Nope.
That's how you figure it out in the real world. Video games do things strangely sometimes.
Physics libraries don't do physics.
Easiest way to confirm this is to drop something, old school Newton.
As they said in the original edge case notation vernacular "Here there be dragons."
BM King I don’t under stand anything you just said also when you say yes you’d be dead is it bye all the science or the strength of gravity
You have big brain
@@bobthetomato7005 See, we can't all be as resistant to education as people so insecure that they have to mock knowledge and intelligence to cover their weaknesses. You know, like people who can't even spell "tomato" correctly.
You can’t navigate it too well because of the coriolis effect. It’s also why, when you jumped, you moved. Look it up, it’s pretty cool.
This requires that the physics engine is actually capable of modeling that correctly. We'll probably never know.
@@puddingofdoom it seemed like it was doing it to me
@@puddingofdoom Well we will, because we gonna build it in real life someday soon. :) but also its pretty easy to calculate.
Reason it works so well is because noting weird is going on. physics engines a made to simulate normal earth G, but it's the same math that also gives you spinning G.
@@MouseGoat I specifically meant the in-game implementation which can be anything from incomplete to inaccurate or faulty, even. Physics engines are made by humans after all; physics, however, not so much. Nature never breaks her own rules.
Pudding of Doom you don’t need to model Coriolis force. It’s not a real force, it’s just a result of how the rules work. As long as your tangential velocity doesn’t change from a jump, you’ll experience the Coriolis effect.
haven't tuned into one of these episodes in a while. Glad I decided to come back, great video!
It's the first one I've made in awhile :)
Indeed, you probably haven't tuned in since the last one was released.
Love it, Andrew. Now make a pressurized functional spin spacecraft!
Haha good luck! In survival, you'll have to pay super close attention to the safety features lest you find yourself smushed against a wall!
Yessss
He should make a habitation cylinder instead.
@@masterSageHarpuia that would be easier than a spinship.
I remember back in the day when the legendary HOCgaming did his artificial gravity station series in KSP. He kinda had the opposite problem to magnet boots, kerbals just won't walk under non-planetary gravity. So to test it he used a rover and drove around his ring. That could be a good workaround to the magnetboots thing, providing space engineers wheels work that way.
Good idea! I've heard that vehiclea have a harder time staying in the wheel but it's worth a try!
@@AndrewmanGaming besides, what could possibly go wrong?
Ya dingus.
There are supposed to be TWO wheels to counteract the rotation on the main body.
or some gyros (same thing in concept)
@@MistahFox that would take up massive amounts of electricity.
There are two wheels. Three in fact. The front of the "ship" is spinning & using thrust to allow the middle to spin the other direction. OP could have just used an anchor grid w/ rotor or gyros on a simple wheel, but to each their own.
This is sort of what "there is no spoon" means to me.
After seeing this I really want to make my OPA Behemoth drum spin. Though so far clang has been paying a lot of visits already.
Or you could just make a ring with thrusters turning it without axle
that paint picture made me spit out my coffee :D
:D
This is your mandatory Interstellar reference comment
I was thinking of intersteller when we were spinning super fast and looked outside at the ship which was also spinning super fast!
Cooper, this is no time for caution !
AndrewmanGaming I watched that movie last night lol
Its necessary
Now build the Nauvoo (The Behemoth) from The Expanse, with buildings and atmosphere in it. :D
Also: SPIN THE DRUM!
(At 960m with 0.75 RPM you'd get 0.3g!)
I vote for building RAMA
I made an updated video where we put some of your artificial gravity suggestions to the test! If you want to see what happens when we turn the mag boots off, attempt to drive a car inside the wheel, or spin the wheel the fastest we can get it to go, check out this video! ua-cam.com/video/wtQ6bvaBk3Y/v-deo.html
This doesn't just simulate gravity, it also provides a unique circumstance where you have "gravity" (perceived) and mag boots at the same time! Somewhere hiding in the gameplay there's got to be some use case that makes this valuable
If you attach a gravity generator and set it to the lowest setting, it will turn off your gravity boots
That's good to know for the future!
or you can press x
@@mbexotic0 As soon as he said that in the vid I was like... wtf, press x... it even has an 'x' on the icon in the UI... -_-
@@kal9001 that just turns the jetpack back on
@@kal9001 X turns on the jetpack, not the gravity boots
Just binged this entire series, and holy crap the stuff you do here is insane
Creating an elevator through the Earth? Setting gravity to 1,000,000g and casually overflowing the integer limit? *Driving from the Earth to the freaking Moon??*
On paper, everything you do here seems dumb, like it would never work. Yet, in practice, somehow you always manage to make it work every time, and I'm just addicted to seeing what you're gonna do next. This is the most entertaining series I've ever seen about just simply exploring physics (or at least, the physics of a game). The presentation, the editing, the ideas, the execution of said ideas, it's just so insane and out of left field that I can't stop watching. I mean seriously, why haven't I heard of you before?
Anyways, I absolutely adore this series, and I'll be sure to check out more stuff from you; keep making fantastic content!
Thank you Walroose! I'm glad you enjoy this series :)
Well, thank you for getting me back into space engineers. You got me into it in the first place and now I am going to play again.
I really want to play this game, but I don't have a good enough graphics card):
kg22backup What kind of cars do you have? Might be able to get by on lowest settings..
@@skyline5265 both computers that I have access to do not have proper graphics cards. From the research I've done, both graphics cards are worse than even the minimum.
@@chloe_gospinny Ah, I'm sorry to hear that. I hope someday you can run this game, and then you will be stuck confused because of how complicated it is. Or maybe I'm just stupid, idk lol.
@@skyline5265 once I get enough money I'll buy a new graphics card and the game.
if you click x when walking on the ground when your boots when turn of/on. You can see it if you look at where the jetpack symbol usually is but only when you are on the ground with no gravity. update: HEART!!!!!!!!!!!!!!!!!
If you edit your comment your heart dissapears lmfao
You sure didn't play Space Engineers. Pressing x while using boots will just turn on the jet pack.
Mr Grey I think you don’t play buddy you would know if you played the game for a while
@@faraway6626 You think he doesn't play but I play space engineers and I know for a fact that pressing X, while either in the air, on the ground, or using the boots, will toggle the jetpack. Therefore, Mr Grey is not wrong, and he's probably played more space engineers then you have.
Joseph Quiray 3k hours sure
This was really cool. I'm getting flashbacks of Interstellar.
13:10 i mean, 100m/s is no joke
Actually, is it like 20g? If it spins once every 2 sec?
Overloader7 yes
Yikes, that's alotta force
Sun is 27g
The equation is a = v^2 / r. So if we estimate the radius of the wheel to be 20 meters, (100^2)/20 = 500, or about 51 Gs. BUT THAT'S JUST A THEORY
@@SWAGCOWVIDEO I was thinking that if it takes 1 sec for half of a turn, and half of a turn completely negates and reverses the speed its 200m/s^2... Although it doesnt take into account sideways force so you're probably right
@AndrewmanGaming You should try building the Endurance from the film "Interstellar". It's got the same spinning mechanism, plus living quarters and 4 detachable landing craft. Give it a go!
If he builds it someone has to do the docking scene
Three days after asking myself that same question, I get recommended this video from years back.
Not sure right now whether I should be concerned that the YT algorithm now reads my thoughts or happy this actually works!
Jaja It is not that you go back down because the gravity, it is that the section of the spinning ship comes to you because it is moving!
That ship looks a lot like Space Station V, the transfer station from 2001, A Space Oddysey, featuring that iconic drawn-out, silent scene of the main character just walking. Interestingly enough, the film that brought this very concept into the mainstream.
I love this series of yours :)
This video was my first introduction to space engineers
I got the game myself this week
I think you could've put down a very weak gravity generator (like 0.01g or the minimum it allows) and then the mag boots shouldn't be active anymore.
The gravity would be weak enough to not really alter results but the annoying mag boots are gone
I'm pretty sure you can toggle the boots anyways
@@jaykoerner you can't.
Jetpack on without but first run out of h2
If you wanted to stop both ships spinning, add gyroscopes to the main ship
this was a great video that i watched a few years ago that helped me understand how you could mimic gravity well enough in a static space-time where gravity from planets seemed more linear
00.54 that transition was so smooth!!😍😍
Another top quality episode Andrew. P.S congrats on 20k
Thanks St3llar!
AndrewmanGaming grats!
alongside what was stated in the video, because the earth is rotating, you actually do have some of that sideways velocity you just don't notice it because of just how big Earth is, and how fast you get pulled back to the ground. Also, I am not an expert on this subject so I could have things a little (or a lot) off, that is just my understanding of it.
Nope, that's perfectly correct, and don't let anyone tell you otherwise. When in contact with the rotating heavy body, circumferential speed has no say in the forces that keep the body attached or flying off, it's only the rate at which the rotation makes you change direction, and that's (if speaking of Earth) still just 360 ° per day.
This video is legit just you building a space station that can spin, wow so cool XD
This has inspired me to change my base cruiser's design, I need a living area with this spinning gravity.
Make the Nauvoo/Behemoth
Been there, done that. Try a spherical gravity generator at the lowest setting, it will disable your boots. Also try using a station as an anchor instead of a ship. Sadly you slide so weirdly :T i hood they fix that
Alex Rainbow There's nothing to fix, that's how it works. Pay attention to the explanation at the end. Edit: Unless you meant while standing still?
@@guard13007 yes I meant while standing still. You still slide along the ground for whatever reason
The spinning wheel of awesomeness looks like a hat!
Spacebusters AND physics lessons in one? Is it my birthday? What did I do to deserve this?
This guy needs a hella more subscribers
Cen-tre-few-gal that's how you learn to pronounce it at my school few years back
Comprised Frog6 gosh now I can’t pronounce it lol
@@BBDoesTheThing reading that back neither can I 😂😂
It's not even a real thing, Just applied kinetic principles. Kinetic energy moves in straight lines so when you are moving in a circle you are moving in a series of straight lines tethered by a '*Centripetal Force*', upon the removal of a centre-seeking centripetal force you escape tangentially following the direction of your instantaneous velocity.
@@pewpew4545 chill just thought that's how u pronounce it but hey if that's how u pronounce it I'll go for it I ain t sure tbh
It’s odd, cause I know that’s correct, yet I always pronounce cent-riff-i-gal force.
I didn't think the physics engine was this sophisticated. Space Engineers keeps amazing me every time.
Ikr me neither! But when it was possible with the theme park ride, I had an inkling that this would be possible too :)
Based on the explanation in the video, it shouldn't need to be more sophisticated. The fact that rotors apply velocity to things instead of just spinning them as well as the fact that the rotors Klangyness can be affected by them spinning was evidence even without the tests that were done in the video. Still good that it was tested though. (:
It would be really cool to see someone try and make the ship from Passengers
Prometheus 18562 I was thinking the Martian
Hey whatsup sorry i took your name.
@@Prometheus7272 Your the reason I need 18562?!
@@Prometheus7272 How do you have over 100 subscribers for playlists and why does it say you play Minecraft but you don't have any videos?
@@prometheus8010 I started this channel along time ago.
before watching... I think this will work. I have been tossed around by friends rotating their ships near me.
12:32 Congratulations, you have just created a centrifugal force powered particle accelerator.
Thank you sooo much for time lapsing your builds. Sitting there for hours, and watching one block being put up at a time can get rather... Stale.
Another idea for artificial gravity is kind of like this, You have a moving platform that moves up, therefore since newtons laws (I can't remember which one,) it appears you are falling because of 'gravity'
Well that upward moving platform will need to be perpetually accelerated cause if it has fixed upward speed, as soon as you jump up you won't touch it ever again
This is actually how ships in the tv and book series The Expanse create gravity. The ships are built like skyscrapers with engines on the bottom and then use their engines to constantly accelerate at around 1G (as long as an object is experiencing constant thrust, it will accelerate)
@@11darklight11 Yeah that idea is crazy stupid, and you run into the problem that the universe has a speed limit of light.
once you hit that, you will once again have no gravity. (well actually what would happen is all of the universe time will happen in the blink of a eye, as you time would be stretched to infinity. or think of it as your time stopping)
Unless...
You turn around and slow down, in that case you could have a space craft that speeds up and slows down. that way you only have to experience a slight loss of gravity every time it turns.
but... id not want to be on a space platform hurtling though space with more than half the speed of light , knowing that at one small dust particle is enough to create a deadly explosion Also, all the energy needed to just accelerate the platform with 1 earth G, you would be burning though stars faster than a fan made death star.
@@MouseGoat I mean you can keep on accelerating forever it just you won't get to the speed of light as viewed from someone elses reference frame. Your artificial gravity will remain the same though.
*Interdictor class star destroyer intensifies*
That's so impressive, this game is incredible! Also, thanks for the free lesson on physics, any video where i learn something is a good video.
Your explanation made more sense than my teachers
Not to nerd out too much but centrifugal force (pronounced centrifigal) isn't a real force. Basically what is happening with centripetal force is that you (or any other object for that matter) wants to stay in the path and velocity that it is currently heading. When an outside opposing force reacts to it, that is the change (the bumping you were experiencing). Same thing happens when you are in a car. Turn left hard and your body reacts to the right as well as the air freshener hanging from your rear view mirror because it intended to stay in the straight line path. Sorry for the nerd out. LOVE your vids. Especially love Space Engineers because I feel they are trying to get the science right. Makes it a grinding game but I guess that's why a lot of people love/hate it. Thanks for indulging me...
i feel like the part at 20:00 could be used to make a really cool sci-fi fight scene! imagine a space station using this artificial gravity ring gets raided, but the attackers are able to get in without touching anything, so while everyone else is bound to the station normally, the attackers are all floating in the air flying past everyone lol
Why does it remind me of those music videos?
Except the air is being spun with the ship, they would have to be thrusting against the air constantly, at whatever the tangential speed is.
Please make a skyhook! We gotta have skyhooks!
I would put the gyro in the ship to keep it stable and won't spin but will make the ring spin a lot faster, plus i'd put the control panels in the middle and outer ring to control the rotor if you struggled to jet back up in the centre point (thumbs up)
you can turn the mag boots off in the same way you turn off the jetpack. It's the X key, when the shoes are showing in the bottom left.
Time to build a Orbis Station!
I remember back when you could turn mag boots off with M or something.
You can still turn them off.
*Builds ladders to navigate grav rings when in operation*
*Flies into walls seven times and mentions how hard it is to navigate*
Fun aside, pretty cool concept, and happy it works!
Now that you described it, of course it works: Space Engineers does track speed in vectors. It did so, back when Intertial Dampers were first introduced.
The ID's are simply firing engines, to try to make the speed along all 3 vectors +/-0.
The movement of every object in SE (or realy any 3D game), can be represented by just speeds along 3 vectors.
There is gravity in space, and you would fall towards the earth if you stopped on the orbit, the reason it feels like there is no gravity is that everything is falling sideways at the same speed, and so nothing is actually falling if you are in the same orbit.
That's definitely true. In SE though, gravity cuts off pretty quickly so we were actually in zero g, but yeah irl with our present understanding of gravity, an object's gravity field affects everything in the universe :)
okay, I doubted this so hard but this blew my mind. amaizing!
make a second ring on the spinning red section GO GO GO DUAL RINGS
Your spinning wheel of Awesomeness looks like a Sumbrerro
Spinning doesn't push you outward, (its a good trick though) it pulls you in. The normal force of the wall you are up against is the force you feel pushing on you. For example, if you set up a merge block system on the outside of the wheel, and detach it, it won't fly outward from the wheel, it will fly tangentially from the wheel, because it is no longer being held by centripetal force... should have watched the rest of the video before posting this... Your explanation was mostly correct.
Clang would be impressed.
So I was doing physics hw and this helped me. is it bad that a guy on youtube explained it better than my teacher?
So I know this is an old video, but I've just discovered this Playlist after watching your space engineers seasons. At first I learned a lot about how to play the game after your vids, but this vid was the most educational yet. Where were you when my instructor was going over engineering physics at college? Lmao took me forever to wrap my head around it in 1st year physics. Is it wrong I finally get it know after watching this vid? 😅 you're awsome. Just don't bring up Cos and Sin math lmao
Haha I'm glad I was able to teach something! Sometimes all it takes is a familiar example for it to click.
omg.... i am sick from only watching the movement xD
I'm so glad that Space Busters is back!
I wonder if this can be down with an outside frame imparting rotation with wheels?
sir i have been waiting for you to bring this series back. Glad to see a new video
You should try building a colony like from Mobile Suit Gundam in the UC 0079, that would be awesome if you could build space colonies like that. lol
There's one on the workshop but it's not really the same (as expected) it's more of a tube with a plateau so you don't walk on the walls of the colony :/ but yeah that would be insanely cool to have something like that in space :D plus you could drop it on a Federation base :3
@@guillaumeblauwart1238 Exactly! xD
Spin me right round baby that's how you make a artificial gravity make it spin me right round baby
Great demonstration. You wouldn't want that amount of angular velocity to achieve the force you need however. A much better approach would be to dramatically increase the radius of the arms translating the angular velocity. As I recall the centrifugal force calculation is a R squared relationship . I think I once calculated it so that I could get a 1G value(or maybe it was a Mars G value, I forgot :)) at a radius of 700 meters (1.4 Kilometers diameter) moving at just 3 or 4 RPMs. The advantage of high radius / low velocity is its a lot safer. Unlike this demo using high velocity / low radius, which will cause you to experience a much greater force at your feet than at your head. Not a good thing if you'd like to keep blood in your upper body :). However, I was curious if Space engineers actually had this level of physics. Thanks for showing that it indeed seems to :) Now I need to create my own Hermes in SE using this knowledge you just gave me :)
Expanse-style "Acceleration" artificial gravity is also possible in SE. It needs an unlimited speed mod to be practical tho.
To make the ship more practical you should have two contra-rotating cylinders this would balance out the torque issue and allow the ship to be functional
Dude, you gotta do building tutorials, specifically on creating circular shapes. Your stuff looks awsome
Don't mind me. I'm just here to see how many centrifugal vs centripetal arguments this generated.
I recommend putting an antenna on it and remote accessing it for the next time. Makes for a lot less running and can be edited out or sped up without continuity breaks.
Good idea! Yeah in survival, it would be really tough to get in and out of the wheel without dying, so the button that activates it from inside would save you a lot of heartache!
Pretty simple math could tell you the artificial forge of gravity without stepping foot in that thing. The biggest factor isn't your rotation rate but is instead, your moment arm length.
Not very practical or efficient but it's cool. I wouldn't actually build that except on a megastructure, but it's cool. Middle could be a Factory for your ships.
You didn't touch on that it's better to have a large spinning circle rather then a small one, if it's too small, the different acceleration effects at different height towards the center makes movement awkward, larger ones help with that as the difference is reduced
I am so excited for Xbox SE, I am stoked to make crazy shit like this.
(Pretty sure you press X when you're on the ground to turn) mag-boots off btw
I did a school project with this exact topic for my physics course. Wish I had this video back then.
For another video you can try making launchers or stargates using artificial gravity generators
not just sci to! But Wherner Von Braun sent us to space and figured out that you can make artificial gravity using using the to rotating rings called the Von Braun wheel.
Also he was not the only one to help us get to space.
This whole video: I'll try spinning that's A good trick
Just shows how close space engineers' physics are close to real life
I’m guessing if you had this setup irl and the wheel was pressurized, the atmosphere would have a tendency to move in the direction of wheel rotation... if for some reason you ended up stationary in the air in the wheel, the moving atmosphere would impart a force on you that would eventually ‘drag’ you back ‘down’ to the ‘ground’
If you looked at the interface at the bottom left, the Jetpack symbol becomes a magnetic boots symbol when you stand on something.
So pressing X would turn off the magnetic boots.
very epic science experiment
Idk about in Space Engineers butreal life you would be losing a lot of force since your ship is spinning the opposite direction so if this translates into the game you should be able to fix it using gyroscopes on override to keep the rest of the ship from spinning
Does the game interpret this differently if you have an atmosphere in the circular area? That would be an interesting test.
Everybody gangster until SpaceX makes a Halo
By the definition it's centripetal force that keeps your body on the inside platform as it rotates* Whereas a centrifugal force is something that is perceived through observation on the inertia an object would have if it did not change velocity and continued on. For example, cutting the string to spinning ball to see it fly outward is an apparent "force" that does not exist. The only force is the one towards the center of the spinning machine, which is centripetal by nature...
Here's a challenge, try and make the grav lift from halo. so it shoots you up to a ship and then the ship catches and lands you.
Nice teleportation system
Been playing since bata and wondered in the back of my mind if this wa as possible. Great job
Yeah i made one of these when I made the Bebop. Except back then it would eventually blow up or as ive heard it called Klang
So, could you still float freely in such a contruction, if you ran fast enough into the other direction, to cancel the tangential velocity?
Yes, theoretically. But the faster you run, the less force you'll experience. It will become harder and harder to keep running as you start to weigh less. Eventually it will be more like hopping! But yeah, if you can manage to speed up in the opposite direction to counteract the tangent, as long as you don't tough the wheel, you'll float there!
THIS LITTLE MANEUVER IS GONNA COST US 22:10
Umm I think you got the whole further away spins faster backwards, pretty certain the inside wheel would generate more pulling force due to the smaller surface area, same thing applies in gearboxes in cars
How about building a huge sphere size of a planet and spin it
I like the way you think!
Mike Houghton you’d never be able to get close to planet size before the game crashed
@@monochrome_soft9472 never say never.
Mike Houghton i mean if you find a way to do it, by all means i would love to see it, i love building big, but from experience, there’s no way the game can handle something that big
@@monochrome_soft9472 of course it would have to be in a clean world. but trying is half the fun.
if you want to trick the mag boots add a grav gen and have it pull sideways at low strength