Artificial Gravity

Artificial gravity is a concept that is ubiquitous in our science fiction yet elusive in our space program. Why is this? And how could we develop artificial gravity soon? In a Cool Worlds special, this video essay goes in depth on the topic discussing why centrifuges are the most plausible solution and early ideas on the topic. Join us a journey from Einstein's equivalence principle, to O'Neill Cylinders and Stanford Tori; from Coriolis forces to near-term experiments. Grab a cup of a tea and enjoy.

Chapters:
0:08 Introduction
5:43 The O’Neill Cylinder
8:10 The Stanford Torus
10:16 Down-Sizing
13:31 Coriolis
16:52 Vertical Coriolis
19:32 Tipping Coriolis
21:34 Canal Sickness
27:01 Stability
29:28 Near-Tear Experiments

Academic articles used:

Video materials used:
► Not a video but thanks to Don Davis for his amazing images used

Filmclips, in order of appearance;
► Star Trek: The Original Series (1966-1967, Paramount)
► Star Trek: Enterprise (2001-2005, Paramount)
► Interstellar (2014, Warner Bros)
► 2001: A Space Odyssey (1968, Warner Bros)
► The Martian (2015, 20th Century Fox)
► Avatar (2009, 20th Century Fox)
► Elysium (2013, Sony Pictures)

And also...

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THANKS FOR WATCHING!!

[JohnMichaelGodier]

Hands down the best presentation I've ever seen on the subject. Amazing!

[astra]

Born too late to explore earth. Born too early to explore the galaxy. Born just in time to explore minecraft

[veorEL]

I definitely enjoy this style of videos 👍
The main reason is, that you took equations and actually broke them down showing how the terms would affect the outcome.
I think this is a much better way to convey information, instead of constantly using metaphors (like other channels do), in my opinion you managed to hit the sweet spot with this video.
I was able to follow and was engaged the whole time.

Congrats to the writer, director, animation and editor of this one.

[lucchesi]

"Occupants would be thrown about the habitat, in a clearly unacceptable manner"

That sense of humor... LOL

[andyroid]

I don't think that this presentation could be more comprehensive! The amount of work you've put in is incredible. Well Done and Thankyou!

[py]

The preparation work for this video is equivalent to a thesis. Very impressive.

[WestOfEarth]

For long duration missions, would it be acceptable to have a special smaller rotating section of the spaceship used solely for sleep? Wouldn't this allow the astronauts' bodies to regenerate muscle and bone loss? During the day, they would live primarily in zero g carrying out whatever activities needed. Possibly have these tiny apartments equipped with bathrooms for...you know gravity assist so-to-speak.

[milky_wayan]

Wow. This is like Isaac Arthur. A documentary on every aspect of artificial gravity we know. Great job, Cool Worlds!

[marvinkitfox]

Your presentation voice takes a bit of getting used to, but it is VERY clear.
At no time ever in this video did I have to sit and wonder just what had been said.
.
As someone who very often needs to enable captions to have any clue what is being said on Youtube, I appreciate this very much!




P.S.
11/10 on content!

[raymondmejias]

This man is the best, he is a genius totally one of the best narrators out there...🙏😇 blessings to all!!

[meadowagbor]

Person in the 1970's : these will probably exist before the year 2000
People in 2020 : yeah, we dont even have flying cars yet.
Edit: btw, this is a joke😋😋

[myidjoeystudios]

What a brilliant presentation for such a hard concept. Awesome and stunning!!

[abhishekmahajan]

If my teachers taught me about gravity and inertia with this clarity i would be in harvard this time lol

[acosma]

I’m a novelist and I’m new to writing science fiction. Read a lot when I was young. Writing it seemed so daunting. These videos are fantastic and incredibly useful for the world building I’m aiming to do. Thanks for posting them.

[XelaJN]

I wish I could be around in the future when solutions to these problems are created and people in the future look back at our syfy movies and either laugh at how far off we were or are amazed at how close we were to the real thing

[johnq]

Thank you for not shying away from technical language. Complicated topics require complicated explanations.

[THX..]

I like this video. If I were to pick the one thing that annoys me about NASA and people's space ambitions in general it's how we are seemingly ignoring the need for gravity. We have evolved our entire 3. whatever billion years in 1G. I am extremely skeptical we can live long term in much less or more than 1G. I mean our research in micro gravity seems to say it's really, really bad.Yet after doing zero research into the effects of long term low G we are planning crazy stuff like Mars colonies. Somehow the assumption without evidence seems to be zero G is totally bad, but 1/3 G should be fine....Before we blastoff on a SpaceX Starship to colonize Mars it would be nice to know if we can even live there.

[f.spopers]

I read that as artificial Gravy for a second


Man I'm hungry

[Jycatgc]

Thank you for making your video in caption. Without your captions in this video, how can deaf people like me learn of artificial gravity. Again, thank you!
About this video, just one word...

[nocapoca]

The counterweight design looks to me the best solution for long trips.
On a trip to Mars it can be set to the gravity of the Mars, so the crew would be accomodated at the arival.
But here is an other solution: instead of a counterrotating balast, can be used 2 ships attached with a cable, wich has some advantages: more space for the crew and backup in case of technical failures.