Faking Gravity in a Spaceship

Sci-fi often shows people just walking around in a spaceship even though they should be floating. The stories that happen now or in the NEAR future doesn't have the luxury of using some mystical "artificial gravity" device, so they need a more realistic explanation. The common method is by rotating the spaceship, but that can cause problems if you're not careful. What kind of problems?! That's what this video is all about!
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[walterw]

I literally spend hours watching and re watching these videos, this channel deserves more.

[zackyezek]

You'd NEED gravity. 50 yeas' worth of manned space flight has pretty much proven that prolonged zero-G causes your body to slowly waste away, and any trip past the Moon is going to take long enough for that (plus radiation exposure from solar wind) to be major problems the ship should address. Also, living in zero gravity is a huge pain in the a-- that even astronauts have trouble getting too enthusiastic about. Basic things like eating, bathing, moving around, and taking a sh-t become horrible, tedious ordeals without any gravity (real or synthetic). A rotating ring is ideal because you can live in the ring, and put anything that benefits from or needs zero G in the central hub. You can even have low G areas just by having multiple levels on he ring, useful for doing experiments in say, Mars or Lunar gravity and acclimating people to them on the way to those destinations.

[falaicha]

You deserve million subscribers and views. I wonder what is going wrong with your channel, I mean you have superb quality content but no views. May be need little exposure. Why not you try posting some of best videos in reddit or some other social media. Also do bit of promotion campaign. Best of luck mate, you definitely deserve to get a lot more views and make good enough living just out of contents you already put in.

[iztdm]

I love this! Answered lots of my questions... but I still have one, if anyone here doesn't mind answering. :)
Okay, so as you can imagine, I've watched a few YouTube videos regarding artificial gravity, namely the "giant centrifuge" brand. Almost all of them conclude the same way - "nice idea, but currently too expensive (because the structure would need to be BIG to reduce the gravity gradient problem) and the inner ear would be messed up, causing imbalance and nausea."I can see how the first problem could only be solved with enough money and resources, but it's the second problem that has me curious - the "inner ear" issue. Could this be combatted with specialized "pressure headphones" that (SAFELY) alter pressure in your ear to compensate? Or is it not an issue of pressure so much as the direction of force?

[MikeSchellman]

Wow. Thanks. This is really awesome. I don't mean to be a nuisance, but now I have a new question for you. I hear that any object that is too large will be crushed into a sphere by the force of gravity. Just how big can something be, before it is acted on by this force - say like my cylindrical space colony? I want to write about a long interstellar voyage where the inhabitants are allowed to forget they are on a ship. The have few tools and live an early agrarian lifestyle. As it stands in my mind a walk around the inner surface of the cylinder would take 10 days.

[Thermospecialist]

Let's remember that General Relativity is based on the equivalence of gravity and inertia; the centripetal force is an inertial one. An observer in Einstein's famous accelerated cabin, can do no experiment to distinquish between the cabin being at rest on the ground by gravity, or being accelerated in free space.
However, in a rotating spaceship, this equivalence is only valid for a body in contact with the floor. If you jump up, or throw a ball up in the rotating spaceship, neither you nor the ball returns straight down, as it would be on Earth surface. The reason is that as soon as an object looses contact with the rotating floor, it is no longer part of that rotation (it becomes weightless), but moves along a straight line as per Newton´s first law. On this straight path, the object collides with the rotating floor on a distance away from where it was from start.  Hence, when you jump straight up from the rotating floor, you will describe a curved path relative that floor, so you land a bit further way from where you jumped up and also with a certain angle to the floor, the larger, the higher you jumped - you may fall flat on your face.. A juggler would have to learn his profession again from scratch ...

[gumunduringigumundsson]

Best explanation of it I have seen man! I dont understand why YT didnt show me your channel before. I think I saw it first a week ago.. great work man. I hope you dont stop. Ill donate soon man. You deserve it!

[Princess-ielr]

Q: How do you know you're on a spaceship or not? A: Just climb a latter. Lol THE BEST

[Jenkowelten]

I found this video in a link. Very informative and entertaining. You should have more subs and views

Runs in oposite direction of the spining and you start floating.

[MWMarsh-vvhe]

I like this video a lot, sir... I'd like to "(Thumbs up icon...currently at 1.6K...nice)" and "(arrow pointing towards the word)SHARE" and "(three horizontal lines with a plus sign in the lower, right corner of the three horizontal lines) SAVE"
I'm also gonna leave a comment that you will likely never read... I guess this is a Schrodingers's Cat scenerio here...
hey FYI... Everything in the universe is happening RIGHT NOW.

[daniel_keen]

Your videos are indeed really interesting and deserve much more views.

[sausagemash]

I've got a thing for bone density(I like it), so for long trips yes give me that fake gravity

[xray]

If car wheels need balance weights to run smoothly, The spaceship would need a HUGE Spin Balance machine and HUGE balance weights to keep all that weight and mass from experiencing extreme structural fatigue when spinning. I don't think spining a spaceship to get centrifical force is really practical. It would be too difficult to balance, especally when it changes direction. And when objects in the ship are moved that would throw off the balance, also.

[josephsalomone]

It seems like all these tests could be applied to the earth as well. Your head experiences less gravity than your feet. When you run with the rotation of the earth, you will ever so slightly be lighter. Helium balloon would rise to a certain height, then just stop. As you climb a ladder you would lose some weight, and once you climbed to geostationary orbit, you'd be weightless, and climbing past would make you feel gravity towards your head. So I fail to see how you determined yourself to be on a spinning space ship.

[eviaspro]

thanks a lot :D the penguin in the start helped me understand how centrifugal pushes you if you throw something inside earth through a hypothetical tunnel. Great! Subbed!

[mhklein]

Weightlessness is fine for a short trip, but for anything longer than a few months, gravity, even fake gravity, is better.Time for the U.S. to consider building a wheel space station similar to 2001: A Space Odyssey.

[RRNZ]

Here is a very easy way, add small ferromagnetic metal strips to your suit in alignment with bones or graft it to your bone, then just use magnets.

[jamiegodman]

If I was on a short space trip I would want microgravity of course, who wouldn't? But if the trip was going to last more than a month then I would want gravity, or artificial gravity that is. We need to come up with a solution to zero G during long space transits in order to stay healthy and strong when we arrive at destinations out of Earths gravity well. Cis-lunar trips won't matter as they are short but Mars or beyond will matter. If we can't walk by the time we get there then it's not going to matter that we got there. What do you think the best method we can realistically creat for artificial gravity to stay healthy? And how much is needed, .5g, .8g 1g? Please respond. Thank you.

[ZanOGAL]

note to self....if u wanna live in a small scadinavians....