27 ms·
One Revolution per Minute [video]
- simonebrunozzi 3y agoThe curved swimming pool at 2:35 is amazing.
- FigurativeVoid 3y agoI'm not sure if it's true or not, but one of the plot points in The Expanse series is how necessary artificial gravity it is for human recovery. Without giving too much away, it assumes that humans need gravity to heal properly, otherwise things like bruises won't heal since you can't drain the fluids without gravity.
- dmbche 3y agohttps://space.stackexchange.com/questions/36411/healing-of-bruises-and-internal-bleeding-in-0g https://space.stackexchange.com/questions/36411/healing-of-b... Seems like it's true!
- HPsquared 3y agoDoes that imply that standing up helps healing?
- SideburnsOfDoom 3y agoYes, this is a fascinating topic; because although we know that 0.0G as in the International Space Station is unhealthy in many ways that 1.0G on Earth is not (1), the in-betweens are relatively unknown. e.g. How much of the health benefits of 1G do you get at 0.9 G? at 0.5G or 0.1G? Where's the inflection point? Would you still get the benefit if you rest in full gravity for 8 hours, and then move out of the ring section of a space station for the rest of the day? Would 1 hour per day in gravity do it? How would people's health be impacted by a long-term stay on the Moon (at 0.17G ) or Mars (0.38G) ? This is not well understood, and hard to study without more experimental data. Which would have to be gathered Off Earth. And we might need to know sooner or later. On the Moon you could do the Experiment on site, and bring people back on relatively short notice if it does not go well. But for Mars, if it doesn't work out there it's a long haul back, most of it at 0.0G. There have been proposals to build small spin rings in orbit to do the experiments on Astronauts, but these plans have not happened yet. (2) 1) https://davidson.weizmann.ac.il/en/online/sciencepanorama/dangers-zero-gravity https://davidson.weizmann.ac.il/en/online/sciencepanorama/da... https://pubmed.ncbi.nlm.nih.gov/11536970/ https://pubmed.ncbi.nlm.nih.gov/11536970/ https://en.wikipedia.org/wiki/Effect_of_spaceflight_on_the_human_body https://en.wikipedia.org/wiki/Effect_of_spaceflight_on_the_h... 2) https://en.wikipedia.org/wiki/Nautilus-X https://en.wikipedia.org/wiki/Nautilus-X
- reaperman 3y agoI also would be curious about effects of time spent at 1.1G, 1.5G, or 2G, including for those who grow up in it. > Would you still get the benefit if you rest in full gravity for 8 hours, and then move out of the ring section of a space station for the rest of the day? Would 1 hour per day in gravity do it? Again, curious if this is the case, would spending less time >1G but <2G be equivalent to spending larger amounts of time at 1G?
- m4rtink 3y agoAt least thats something you can test on Earth using existing technology. IIRC the Soviets built centrifuges big enough to live in & did some longer term experiments, so there might already be some data available for this.
- SideburnsOfDoom 3y agoSadly you can't test alternating between 1G, and 0G daily, on Earth. Maybe that will be the answer. Or maybe the repeatedly changing gravity will really mess people up.
- SideburnsOfDoom 3y ago> would spending less time >1G but <2G be equivalent to spending larger amounts of time at 1G? The experiments need to be done, but my wild uninformed guess is: Human health is not math, the numbers won't stack up like "1.5G times 2 hours = 3 G-hours" Humans have evolved under 1.0G, all the way back the the ancestor who crawled up out of the sea around 400 million years ago. That's a long time with that as an environmental constant. Deviation from that environment in either direction, up or down, will have negative effects on the body. Some easy to predict, some less so.
- dotnet00 3y agoIt's a huge shame the ISS's Centrifuge Accomodations Module never materialized. Obviously too small for humans, but would've still made it possible to study at least some animals between 0->1G
- itishappy 3y agoIt's a minor plot point in the Hyperion series by Dan Simmons as well. The "ousters" are a space-adapted race of humans who live most of their lives in zero-G, but they still need gravity to give birth. It's a great series, it's not as "hard" sci-fi, but the imagery is absolutely incredible.
- wussboy 3y agoI've never read a series that I loved so much and then hated so much. Some of the books and the world-building are just awe-inspiring.
- gautamcgoel 3y agoWait, why did you hate it at the end? I thought it was great the whole way through.
- danbruc 3y agoBringing the water in that pool into orbit will set you back a couple billion dollars.
- dreadlordbone 3y agoHow much do you think the whole ship would cost?
- Keyframe 3y agoProbably around one to several twitters.
- LandStander 3y agoWater mined from the moon might be much cheaper by the time something like this is built. That being said, a giant sterile swimming pool seems like an odd feature for an interplanetary spacecraft. I'd rather see a well-balanced aquatic habitat, if anything.
- ravi-delia 3y agoPlenty of water in space! One of a few things you don't need to bring from home- just mine it up there
- snakeyjake 3y agoI'd just snag some off the asteroids being mined to supply all of the other construction materials.
- 3y ago
- mcwiggin2 3y agoAnywhere you are willing to share a copy of the music?
- abdusco 3y agoReminds me of the soundtrack of Tron: Legacy
- SushiHippie 3y agoThe artist of the music released "wanderers" another short film from Erik Wernquist without voice and just the music. Maybe he'll do the same for 1 rpm? https://youtu.be/pIubYfm-YO0 https://youtu.be/pIubYfm-YO0
- SideburnsOfDoom 3y agoCommentary by Karl Schroeder: > Beautifully rendered video of a wheel-shaped space habitat with artificial gravity. This shows viscerally what I pointed out in my Substack posts on the Single-Family Space Colony: that windows are a bad idea in rotating environments https://mastodon.social/@KarlSchroeder/111161480469784844 https://mastodon.social/@KarlSchroeder/111161480469784844 A bad idea because: Since this is just a visualisation, the safety aspect is secondary to the way that it's quite disorientating, vertiginous, maybe even inducing of motion sickness. I expect that a more practical design would have observation decks, but not huge windows everywhere. But that wouldn't make as nice a visualisation.
- siavosh 3y agoGlorious
- isoprophlex 3y agoMy god this is one absolutely breathtaking video. Well done.
- pja 3y agoFrom his showreel, it seems Erik also created the animation of the final moments of the Cassini mission to Saturn: https://www.youtube.com/watch?v=xrGAQCq9BMU https://www.youtube.com/watch?v=xrGAQCq9BMU Showreel: https://erikwernquist.com/showreel https://erikwernquist.com/showreel
- SergeAx 3y agoYes, here's the whole short: https://erikwernquist.com/cassinis-grand-finale https://erikwernquist.com/cassinis-grand-finale
- heleninboodler 3y agoThis is gorgeous, but I wanted the cadence of the cuts to be just a little bit slower. Maybe this was intentional in order to create unease/tension, but I always felt like I was just a couple seconds away from being done looking at whatever I was looking at when they switched scenes.
- dredmorbius 3y agoThat's been the style in video dating to at least MTV (back when it, you know, showed music videos). The style apparently has a name, Post-classical editing: <https://en.wikipedia.org/wiki/Post-classical_editing https://en.wikipedia.org/wiki/Post-classical_editing> I'm ... not particularly a fan myself and often slow videos considerably to savour the detail.
- tobr 3y agoI have to say I prefer this over Crazy Frog (which was also created by Erik Wernquist).
- SushiHippie 3y agoWow that's crazy https://web.archive.org/web/20120217105311/http://www.hitquarters.com/index.php3?page=intrview%2Fopar%2Fintrview_CrazyFrog.html https://web.archive.org/web/20120217105311/http://www.hitqua...
- mmmmmbop 3y agoThis is actually a really interesting story by itself. Thanks for sharing.
- phatfish 3y agoWhat the hell.
- mdrzn 3y agoWhich is now almost 20 years old to the day (posted originally on Oct 15th 2003)
- 83457 3y agoHow large would a ring have to be to have 1g at 1 rotation per day? (Edit: earth day)
- Damogran6 3y agoShooting from the hip, approx the circumference of the earth.
- messe 3y ago> Shooting from the hip, approx the circumference of the earth. You're quite a bit off. It's actually a little under 4 million km; several times the diameter of the sun.
- Damogran6 3y agoThere's a reason why shooting from the hip isn't very accurate. :)
- SideburnsOfDoom 3y agoIt's not that it's an "not very accurate" loose relation; there is no relation at all. The two numbers concern different forces - gravity inward due to mass vs. centrifugal force outwards due to spin.
- gwbas1c 3y agoIf that were true, we'd all fling off of the surface of the planet!
- SideburnsOfDoom 3y ago> A ring with 1g at 1 rotation per day That's the parameters of a "Banks Orbital" https://theculture.fandom.com/wiki/Orbital_(Wikipedia_version) https://theculture.fandom.com/wiki/Orbital_(Wikipedia_versio... Which is: > For such an orbital to reproduce the equivalent to the Earth's gravity, whilst maintaining Earth's 24-hour period of rotation, it would need to have a diameter of approximately 3.71 million kilometres, and spinning at 486,000 km/hr.
- Ensorceled 3y agoI get motion sick quite easily and need to crank the comfort settings in VR, but watching this on a 42" monitor didn't really cause any discomfort at all. It would be interesting to get a longer video from the dinner table for instance. The window frames really help, so I'm not sure the final scene with the gentleman looking out the window would be something I would do.
- jp57 3y agoThat guy seems lonely out there past Neptune. Where is everyone?
- dredmorbius 3y agoMust. Resist. Obvious. Lowbrow. Pun.
- qup 3y agoThey're on Pluto hangin' with their dawgs. Right!? Great pun, dred.
- dredmorbius 3y agoThat one's a real ... Kuiper.
- qup 3y agoBet you'll never guess where I pulled it from
- dredmorbius 3y agoCeres, clearly, as this has been a ceres-ious thread.
- munchler 3y agoA future where we have artificial gravity but still don't know when to say "lie down" instead of "lay down". Very realistic!
- recursive 3y agoWhat would be unrealistic is if they spoke exactly the same dialect as us.
- dredmorbius 3y agoClearly this is set after the great "eye-aye" vowel shift.
- hamburglar 3y agoI thought it was all about the great “ay-eye” shift these days.
- dredmorbius 3y agoThe Butlerian Jihad apparently leaves its phonetic phootprints.
- SideburnsOfDoom 3y agoCentrifugal force in a spinning ring is technically an artificial gravity substitute, you're right about that. And this piece is sci-fi, but it's mostly sci-fi engineering, not sci-fi physics. To suggest that ""We don't have it until the future" is wrong. Centrifuges are a thing. Building one in space would be only an engineering challenge. The "how it works" part is well-understood science. There are detailed plans for smaller rings in space, building one is just a matter of NASA budgets and priorities (they chose more robots to outer planets instead, over twirling canned humans in LEO, and there are upsides to that). It's classical physics, even: The old rivals of that, Isaac Newton and Gottfried Wilhelm Leibniz literally did the math in the 1600s on how centrifugal force works: https://en.wikipedia.org/wiki/History_of_centrifugal_and_centripetal_forces https://en.wikipedia.org/wiki/History_of_centrifugal_and_cen...
- gwbas1c 3y agoReminds me of the old-school demos in the 1990s that had 3d animations. It certainly has a lot of the same homebrew vibe, but it doesn't look "artificial." It looks better than the effects in (the movie) 2001.
- prakhar897 3y agoSpace ships will be the cruise ships of 2200. Atleast they won't pollute earth. :)
- m4rtink 3y agoJust watch where you point your burns with some of the more exotic drives, and all should be fine. ;-)
- thsksbd 3y agoId go insane with my environment pulsating at 0.016 Hz. It'd be like having a 60 second song on repeat, but visual. 60 s is short enough that I still have my short term memory of what was one rev before, but not fast enough to blur it away. It's a hunch, but Ithink, as humans, we don't do well with frequencies from 0.01 to 100Hz [1]. Most (all?) of human cognition happens there, and to me it feels like a recipe for a a cognitive resonance. [1] I find it cool that the range is centered about 1 s - a fraction of time we call "a moment" that, to me, best anchors the concept of "present".
- hwc 3y agoThe view gives me nausea; I don't want windows! I want my spacecraft to have thick skin and a Whipple shield!
- jvanderbot 3y agoMy heart aches in a way I cannot explain when I watch this or think about space exploration in general. It's a mixture of inevitability, inspiration, pride, and sadness. I wonder if ancients felt this way about the sea, or sky, or mountains that seemed impassable to them, knowing or believing it was only a matter of time. Or did they wonder at areas just plain never-to-be-seen.
- jbott 3y agoErik also made "Wanderers" about this feeling, quoting Carl Sagan. Highly recommend watching it: https://erikwernquist.com/wanderers https://erikwernquist.com/wanderers
- loganmarchione 3y agoI thought this was the same person. Love Wanderers!
- Cyphase 3y agoSaw his name in the domain and came here to mention Wanderers. I just rewatched it again recently while showing it to someone. Amazing.
- rbanffy 3y agoDon’t we all feel the urge to sail forbidden seas?
- gnramires 3y agoIf it helps, consider that the reality of space exploration is not quite the romantic vision we see :) [1] Let's assume we have advanced but still physically plausible technology. The universe is huge. The Solar system is huge. Getting anywhere takes forever! Months, to years (can be shorted with very large energy expense, but you only go faster with the square root of energy!). Shielding from radiation requires large barriers. So you need to spend most time in a relatively small quarters guarded by large mass barriers (magnetic fields might help a little too). Everything about living in space will probably be a mix of boring, hard/confined and extremely costly. This kind of yearning makes me remember something that Richard Feynman said. It's something like (paraphrasing) "We know almost everything about the universe, the nature of forces, even how life works; the forces that bind everything together are known to astounding, extraordinary precision -- pretty much all phenomena relevant at all to every day life. Yet when I meet someone who isn't a physicist, they will ask almost immediately "So what don't we know about physics? What unsolved problems are there?". There's so much we do know and they're not interested in that! And it's so fascinating!". (I think that deserves a name, like "Feynman syndrome", or something :P Like the physics we already do know (and the mathematics as well) is astounding, fascinating, I think so is where we can go, and where we can observe. Like, the Earth (and its lifeforms!) is absolutely astounding. If you go a block around your house, with a keen eye, there are probably interesting enough things to spend a lifetime studying. A single species of insect, a species of tree, microscopic polen in the air, microorganisms, human-made systems, it's just too much to tell. And you've barely left your home. Then there are all sorts of ecosystems and places on Earth, I bet most don't have to travel far to go to a place of natural beauty they've never been to. For reference, Jupiter seems to be about 600,000,000 km away from us. It's interesting and beautiful for sure, but also... a giant blob of gas. If we were a little more thankful for what we do have, that's also unlocking a great treasure. Also, we don't value enough our imagination (and even computer games!) too I think. In a movie or computer game[2], you can make so it so the travel to Jupiter takes seconds (or minutes to hours, just to make it more exciting ;) ), and you get quite astounding views too in the comfort of your home. Telescopes and scientific missions do the same. Through fiction and fantasy, we can travel to places that don't even exist and have all sorts of exciting histories :) If you think about it, life right here on Earth is amazingly beautiful really -- but we have to look with the right eye (mindset and wisdom) to see it at all... That said, bring in the space movies :) [1] Nothing at all wrong with a little romanticism I think, that's good. But we shouldn't lose sights of reality... [2] I really wish computer games were more culturally valued, and not seen as a way to kill time, or an addictive past time. They're really our tool to travel to brand new worlds at our fingertips (of course, with great power comes great responsibility...), we should recognize that as our generation's great medium !
- jrussino 3y agoReally beautiful. Why 0.5G and not 1G though? Aside from the narration that decision doesn't seem to have any impact on the video. I would expect that difference to have a noticeable effect on things like the posture of the plants, the design of the pool, the flight of the butterflies, the posture and gait of the man. Ever accidentally bump a drinking glass, but not enough to knock it over? A wine glass sitting statically on a table will look pretty much the same at 0.5G, but half the downward force means you're probably much more likely to accidentally knock it over. So would we really use the same sort of glasses on a space station like this? Aside from one line about "walk, don't run, don't jump", all of this would be arguably more realistic/accurate if they just called it 1.0G, so I find that decision to be curious.
- SideburnsOfDoom 3y ago> Why 0.5G and not 1G though Then the ring would either have to be larger or faster. Both are harder to build.
- avmich 3y agoThen the question is, why not smaller. Actually, why 0.5G is chosen as optimal.
- m4rtink 3y agoKind middle between Moon (1/6) and Mars (1/3)?
- avmich 3y agoI agree, and disappointed, that we don't really know how different gravity levels affect human body. We could make experiments of that kind on a space station - free-flying if needed - but chose not to up to now. We'll have to wait for something like a private station to test that. Maybe Moon is quite enough. Maybe Mars is not enough. We don't really know, and we'd better find out.
- 3y ago
- Titan2189 3y agoThat was pretty cool! Fascinating... Wonder how difficult it was to convince whatever physics engine to simulate water with curved gravity.
- hiccuphippo 3y agoThe water probably doesn't use physics. Instead it's a plane with a shader to simulate water.
- hiccuphippo 3y ago>a short film I made to explore my fascination with artificial gravity in space. I don't like how videogames have artificial gravity in space. It's a videogame, you can reduce the gravity to zero, instead we get the same gravity as anywhere else. I feel like Fry the first time he goes to the moon in Futurama.
- hbrav 3y agoTwo things that came to mind: 1. Would the Coriolis force tend to set up a big overturning cell in that swimming pool? i.e. there would be circulation along the top, down one end, back along the bottom, and up the other side? 2. Is this some kind of suicide cruise? They just seem to head out into interstellar space at the end. The delta-V to return to Earth would be incredible. And no more gravity assists once you're past the major planets.
- unholiness 3y agoBy symmetry, you wouldn't expect circulation in a pool oriented perpendicular to the station's rotation. The Coriolis effect happens in the northern hemisphere and the southern hemisphere, but not along the equator.
- itishappy 3y agoNo horizontal circulation, sure, but the Coriolis effect can still cause vertical circulation. Check out these panels from one of my favorite web-comics (they do their research): https://www.schlockmercenary.com/2013-09-15 https://www.schlockmercenary.com/2013-09-15 https://www.schlockmercenary.com/2013-09-16 https://www.schlockmercenary.com/2013-09-16
- m4rtink 3y agoWell, if they could launch and assemble all that ship & luxury, they presumably have the drive technology to match. That second ship that docs might very well be something like antimatter propulsion tug or even something wilder like nuclear salt water rocket. Probably nothing nuclear/electric as no serious radiators for all the waste heat such a system would generate can be seen.
- lucubratory 3y agoThere would be some amount of vertical circulation due to Coriolis with the pool running parallel to the spinward-antispinward axis, yes. You could figure out exactly how much because he gives the dimensions of the ship, rotation speed, and we can estimate the size of the pool, but that would be beyond my meagre mathematical abilities.
- js2 3y agoGrammatical nit in the voiceover: "sit or lie down", not "lay down."
- noizejoy 3y ago> Grammatical nit in the voiceover: "sit or lie down", not "lay down." ... unless you're Sally[0] [0]https://en.wikipedia.org/wiki/Lay_Down_Sally https://en.wikipedia.org/wiki/Lay_Down_Sally
- js2 3y agoEven Sally should lie down when she's not the subject of a song made famous by Eric Clapton. :-) Lay as a present-tense intransitive verb is slang[1], just like "ain't" (another bit of slang in that song) and so it stands out in a video and presentation that otherwise conveys a sense of formality and seriousness. [1]: https://www.merriam-webster.com/grammar/how-to-use-lay-and-lie https://www.merriam-webster.com/grammar/how-to-use-lay-and-l...
- samsolomon 3y agoErik has a ton of excellent work! I remember stumbling across his Wanderers video several years ago. https://erikwernquist.com/wanderers https://erikwernquist.com/wanderers
- cpeterso 3y agoThe short film on Wernquist's YouTube channel: https://www.youtube.com/watch?v=iiPmgW21rwY https://www.youtube.com/watch?v=iiPmgW21rwY
- mbar84 3y agoI'd love it if the old man were Isaac Asimov.
- m4rtink 3y agoI was thinking about Sagan or the author himself. :-)
- jancsika 3y agoStranger Things pitch warble effect turned up to Eleven[1] at about 5:40! That effect always evokes Vangelis on Blade Runner <- analog synths <- Buchla, who could have implemented steady pitch but apparently designed the oscillators to slowly lose pitch, because so do violins but so what? :) Which makes one wonder... Bizarro Buchla designs a precise oscillator -> precision and fidelity war in analog synths -> precise, staccato Bizarro Vangelis Blade Runner -> warbly Bizarro DX7 -> wide-vibrato 80s dance music -> warbly glitch hop -> VEDM (vibrato electric dance music) -> nostalgia for precise, staccato analog sounds in Stranger Things? 1: double pun: Spinal Tap and Stranger Things!
- tomcam 3y agoWhy is the CGI better than anything in “The Flash”,which I otherwise greatly enjoyed?
- rbanffy 3y agoSometimes it’s a job, with deadlines and budgets, with creative controls on top, with complicated IP licensing and cascading effects of depicting something on canon. We always see the best when there is no compromise. When you have the time to dedicate to something you want seen, and the passion and the energy to see through it from concept to premiere, you can achieve the sublime.
- yencabulator 3y agoWhat caught my eye is that this thing is pretty darn committed to remaining in rotation. Imagine needing to stop it to repair an axle bearing, with the trees, soil and water floating.