Tap to unmute

A 2D Heron's Fountain Behaves Weirdly


Пікірлер • 4 631

  • Steve Mould
    Steve Mould  2 жыл бұрын +2987

    The object itself is 3D of course, but there's nothing interesting happening in one of those dimensions! What I'm saying is, there's a legitimate sense in which the mechanism is 2D. Don't @ me.
    The sponsor is CuriosityStream: Get a whole year for just $12 by going to curiositystream.com/stevemould and using the promo code stevemould at checkout.

    • The Duckling Homestead and Gardens
      The Duckling Homestead and Gardens 15 күн бұрын

      @Steve Mould
      LMBO!!! I think this is the first time I've actually seen a creator specifically tell commenters not to @ at them!!! I've got all kinds of Don't you even think about it Mama and Grandma sayings popping in and out of my head right now, hence the LMBO!!! The one that was the kiss of death, in where the kids thought they were really going to get it but it was usually pretty tame.... was, "Don't you _____ me! Go to your room and wait until your Daddy or your Pa or Grandpa gets home!" which was usually several hours from then!!!
      I'm getting together some parts I need to create something very similar to this, hopefully making it an actual perpetual motion system. The creation of which I'm hoping will be big enough to supply enough KWh of free energy for a single family of 4 maybe 5 in preferably an efficient house for small or huge investment depending on what the individuals want to do.
      IF I can, accomplish this, then I will turn around and release full instructions for free, on how to make it rather cheaply and/or expensively. I think, but I haven't searched into what size would be needed to create enough kilowatt hours just yet, because I need to see if the one part of the system will work, because without it, the rest will be unnecessary.
      So everyone, picture me figuring this out, that me and my loved ones are safe and that the simple version that will be easy for anyone to find for, is easy to built and be rather inexpensive to build especially for those with little to no money!! So pray for me and a completion of this system for everyone to have.
      I also think I have figured out a way to sw create a clean vehicle that will run solely from 100% Biogas so stand by for that as well, although that could take a little while for me to present! at least the concept for it if I cannot pull together enough funds together!!

    • Станислав Апанасенко
      Станислав Апанасенко 3 ай бұрын

      Make this thing - kzclip.org/video/OCVwFeZBuy0/бейне.html

    • Žiga Ahec
      Žiga Ahec 4 ай бұрын

      Try tacky tape for your prototypes :)

    • Wet Doggo
      Wet Doggo 6 ай бұрын

      @Chris loool what a comment 😂🤣👌
      i hope you are really just trolling instead of having some serious issues 😁

  • NickMick9
    NickMick9 2 жыл бұрын +6040

    "The turd on the shelf", precisely the kind of insightful and intellectually stimulating content we come here for. Keep up the good work!

    • Eliáš Vorel
      Eliáš Vorel 3 ай бұрын

      I hate those kind of toilets

    • Jason
      Jason 3 ай бұрын

      Do Irishmen always do 3?

    • AtlanticLove
      AtlanticLove 4 ай бұрын

      Lots of weirdos in here.

    • WhoAmEye_WhoAreEwe
      WhoAmEye_WhoAreEwe 11 ай бұрын

      Ref. 'the turd on the shelf' toilets. (haven't read any comments, as yet)
      I first came across these when I served in the forces and was posted in Germany (back in the day, I'm an old fart now).
      Now, whether this is 'fact' or not I can not say, but I do remember asking about these 'strange' toilets (by UK standards) and why would you want to see what you have deposited?
      To be told that it IS to inspect what you have deposited........for (actual) intesinal worms.
      Why? I asked.
      - Apparently, due to their (German) diet.........lead to believe, because they don't cook meat as well as other do (or eat more raw-ish meats)... [again, don't quote as fact].
      Time to research an age old held-belief - me thinks

  • luipaardprint
    luipaardprint  Жыл бұрын +249

    I imagine filling that tube with an almost perfect 1/2 water, 1/4 air, 1/4 water took more time and effort than building the 2d heron fountain.

    • Mangouschase
      Mangouschase Ай бұрын +1

      @Kien NguyenI'm getting jetpack fuel club penguin mission flashbacks

    • Kien Nguyen
      Kien Nguyen 2 ай бұрын +2

      submerge 3/4 of one side, then submerge 1/4 of the other, pushing 1/4 out, so u get a 2:1:1

    • TheWizardOfSand
      TheWizardOfSand 4 ай бұрын +2

      @Biruitor water? You mean orange soda?

    • Biruitor
      Biruitor 4 ай бұрын +1

      you could just fill it with some water from your mouth, not that complicated lol

    • xavier pelletier
      xavier pelletier 4 ай бұрын +3

      I would hope he had something to pinch it, otherwise it would have taken significant levels of witchcraft

  • Maarten
    Maarten  Жыл бұрын +13

    I live in the Netherlands, and I never knew there were other toilets than these “turd shelve” types.
    Then I took a look at my own toilet and noticed it doesn’t even have a turd shelve.
    Conclusion: I never really paid much attention to toiletbowl layouts.

  • Tyler Keeney
    Tyler Keeney  Жыл бұрын +103

    I feel like this would've been very cool to see with two different density fluids. Say water and mercury. We would be able to see a fountain effect without any air.

  • ryushi5
    ryushi5  Жыл бұрын +233

    It would be interesting to see this done with two liquids of different density. Of course, it would be very tricky to fill.

    • Skyrotechnics
      Skyrotechnics  10 ай бұрын

      I think it would be great to fill it up with lots of water, then use a syringe to fill the middle reservoir, then pour mercury on top, which would recreate the effect

    • jan Seta
      jan Seta  Жыл бұрын +2

      @Михаил Найденов not really, it cottons be WAY sneakier if the two fluids were the same color, so then you can't see any change over time other than liquid coming out the top

    • Михаил Найденов
      Михаил Найденов  Жыл бұрын

      It will spoil it as it will reveal the mechanics. It will be easier to "connect the dots".

    • Paulo Pereira
      Paulo Pereira  Жыл бұрын +3

      It would stop when the liquid of lower density gets the role of pushing the liquid of higher density up

  • Paul Grosse
    Paul Grosse  Жыл бұрын +118

    I remember seeing (and using) the German toilets when I went on tour there with a band in 1984. The sound engineer's theory was that it reduces the incidence of piles because people spend less time on the toilet (find somewhere else to read the paper) and the vocalist's theory was that it was so that you could look at what you had produced and have a greater chance of finding any indicators of bowel cancer (or other disease) there - they eat a lot of meat there.
    I also recall the same feeling of horror that you did when you see the fill-up-then-empty type.
    So, what to take away from this comment? If you want to see the toilets of the world, join a band and tour ;-)

    • Kyle Klatt
      Kyle Klatt 2 ай бұрын

      The absolute worst part is when it does actually keep rising when it's clogged 😨

    • metrillbeats
      metrillbeats 2 ай бұрын

      The Vocalist was right, Thats why some Hospitals still have some of those

    • Toast 👍
      Toast 👍 5 ай бұрын +1

      @Anhel *_THE BAND_*

    • Quintessenz
      Quintessenz 9 ай бұрын +4

      From experience with the splash and shelf system, I can tell that you need to use the toilet brush less often. Especially if you put a sheet of toilet paper on the shelf before you start your business, there is rarely anything left at the end.

    • Anhel
      Anhel 10 ай бұрын +3

      Which band?

  • smokey04200420
    smokey04200420 2 жыл бұрын +1276

    7:46 Let’s all appreciate how he was able to get half air half liquid in the left column of that tube.
    Edit: I’ve added a timestamp.

    • Hariman
      Hariman 2 ай бұрын

      @smokey04200420 It's water with food dye.

    • smokey04200420
      smokey04200420 2 жыл бұрын

      @WaterBoyz1140 7:46

    • Dante Cavallin
      Dante Cavallin 2 жыл бұрын

      Just blow in some air once you got the amount of liquid you want

    • WaterBoyz1140
      WaterBoyz1140 2 жыл бұрын


    • A WG
      A WG 2 жыл бұрын +2

      @Snoot Oh shit that's a fair point

  • tehklevster
    tehklevster  Жыл бұрын +340

    When I used to visit Amsterdam for work and asked about the "poo shelf" in the toilet bowl I was told that it was because folks from the Netherlands like to eat lots of pig based products. Pig based products can be susceptible to worms, and so the shelf allows the poo-er to inspect their delivery for parasites.

    • Gandalf the Inebriated
      Gandalf the Inebriated 5 ай бұрын

      @ ً m This is the absolute truth. We look at our shit to probe our gastrointestinal health, we also smell our own farts to make sure it's the "usual" odor. We're disgusting humans, and we should be proud about it.

    • Neil Bain
      Neil Bain 7 ай бұрын

      So it is true!

    • zeruty
      zeruty 8 ай бұрын +2

      @Chris Bustos that's an option. Try popping a squat in the shower, makes a more natural angle for defecation. We're mammals, we didn't evolve to shit sitting down. We squatted like dogs, cats, practically ever mammal.

    • Chris Bustos
      Chris Bustos 8 ай бұрын +3

      @zeruty I just shit on the seat and push it into the water when I'm done.

    • Aaron Webb
      Aaron Webb 8 ай бұрын +1

      @zeruty Ah, the ol' Fireman's Blanket.

  • Cinnamon Kittamon
    Cinnamon Kittamon 3 ай бұрын +23

    I wonder if this could be done with some sort of vegetable oil in place of the air, since it's about density

  • Maarten Striepe
    Maarten Striepe 3 ай бұрын +11

    Definitely wasn’t expecting a 2 minute lecture on different kind of toilet bowls 🤣

  • NorthernDruid
    NorthernDruid  Жыл бұрын +49

    I want to see a design which chains several reservoirs together so you can change them out on a rotational basis and keep the fountain going without stopping (preferably while using the same water).

    • Frodo
      Frodo 8 ай бұрын +4

      One day i thought ive done perpetual machine with magnets but it turned out that they were loosing their magnetic energy after some time pretty quick

    • WesNohathas
      WesNohathas  Жыл бұрын +9

      @Hontonitai Hence changing out the reservoirs. That's the energy input.

    • Hontonitai
      Hontonitai  Жыл бұрын +3

      that would be impossible since if water continually flows without external energy input, then that would be a perpetual machine and those cannot exist within the laws of physics

  • Cstolworthy
    Cstolworthy  Жыл бұрын +19

    Great video! Personally I would love to see a visualization of a waterhammer pressure wave. We often see the effects of them, but I don't believe I have ever seen someone visualize it well

    • Kornwulf
      Kornwulf 10 ай бұрын +1

      Grady over at Practical Engineering has a really good video on water hammer with visual aids

  • LumberJak
    LumberJak  Жыл бұрын +211

    I'll admit, as interesting as this was, I was expecting a lot more when I read the title as "Heroin fountain"

    • Scandinerdian
      Scandinerdian 6 ай бұрын

      Indeed my thoughts exactly. I would think that Steve would've been quite the popular guy in the 80s of this was his legacy.

    • Erin Howett
      Erin Howett 8 ай бұрын +2

      Me too...

  • File Code #1459
    File Code #1459  Жыл бұрын +9

    this is so interesting!!! the 2d model really helped me understand what was going on, i really appreciate your effort into making this, i can't imagine how much thought it goes behind it. thank you for this video!!

  • Alphieus Kosky
    Alphieus Kosky 9 ай бұрын +1

    You know, I actually really appreciate the brief toilet primer. It's always nice to know how one's things work.

  • Kacey
    Kacey  Жыл бұрын +15

    I'm curious. Could you replace the air with a liquid of different density, such as oil? I would imagine yes, but I'm curious to actually see whether or not it would. That would mean it's not so much "air" but rather a fluid or gas of different density.

  • Douglas Berger
    Douglas Berger 9 ай бұрын +2

    Have you ever done a video on the continuous cycle absorption system for refrigeration? It is used in a lot of RV refrigerators. A little pilot light can drive a beautiful combination of fluid dynamics and thermodynamics in one system.

  • Mongopa
    Mongopa 2 жыл бұрын +1531

    The "Turd on the shelf" is especially helpful in the medical sector. Its easier to control the stool for blood or something or to get stool samples. But why people (like my parents) decide to install it in their homes is a mystery to me.

    • Kilovolt
      Kilovolt 9 ай бұрын

      Old Soviet unions ones were all this style. Either this, or a slippery slope

    • Midshipman
      Midshipman 9 ай бұрын +2

      @Rasalas I feel that I can inspect my stool perfectly clearly with a few centimeters of water between it and me though.

    • drdRiz
      drdRiz 10 ай бұрын +1

      Having one at home is for the exact same reason, at least that's how I was taught: By looking at your turds you can make a judgement on what your body needs/your diet (more water, more fibers, etc). The same goes for smell. So when it smells horrendous like Steve portrayed, you should be able to clarify that by your diet or there could be something wrong.

    • JUliVideofreAk
      JUliVideofreAk 11 ай бұрын +2

      In Germany we call it "Wurstbalkon"

    • Chris
      Chris 11 ай бұрын +2

      @Rasalas Used to be, but I haven't come across a Flachspüler in a decade if not longer, except in households of very old people who simply don't care to be modern anymore.

  • Wesley 2000
    Wesley 2000  Жыл бұрын +13

    I'd love to see a demonstration on primatic cylinders and seeing how they work, where it uses a pocket of air to seperate a primary flow of a liquid from a secondary liquid. I'd assume it would be difficult to show case though

  • Noc A
    Noc A 9 ай бұрын +3

    Buenisimo! me encanto tu fontana de Heron en 2D, se entiende perfecto su funcionamiento y es muy inspiradora para ver como poder mejorarla. Saludos.

  • Justin Kriske
    Justin Kriske 11 ай бұрын +2

    I’m a high school science teacher in a high-needs area in Savannah,Ga. I am so glad I’ve found your videos because this is helping me learn how to break down complex interactions into visual demonstrations. I’ve got access to a 3d printer, which helps in many ways for more revolutionary/interesting designs and general manufacturing for class project, but I lack the fabrication process which I am learning from people like you!
    I appreciate your work so much
    Justin Kriske

  • Palte
    Palte  Жыл бұрын +3

    Steve Mould is like the cool teacher in school that starts to explain a topic, get's sidetracked but in a way that you can understand the topic better AND manages to deliver the main topic.

  • YuBeace
    YuBeace 9 ай бұрын +2

    The “shelved” toilet also helps for those who need to keep an eye on their health via their stool. Yes, really, certain health conditions can be tracked really well by checking the changes in how the stool looks.

  • Ralexcraft
    Ralexcraft 2 жыл бұрын +2357

    “Gas is less dense than air” That had me laughing

    • Emu-Later Gaming
      Emu-Later Gaming 4 ай бұрын

      Well helium gas is less dense then air

    • Ralexcraft
      Ralexcraft 4 ай бұрын

      @TheChzoronzon I’ll be blunt and send my true intentions. I just found it funny and thought someone else might also get a laugh.

    • Ralexcraft
      Ralexcraft 4 ай бұрын

      @JesusMaryCatholicChristian why do you say this?

    • JesusMaryCatholicChristian
      JesusMaryCatholicChristian 4 ай бұрын

      Quotes from the bible: "Thou shall not murder" "God Is Love" "Thou shall not lust" "Love your enemies and pray for those who persecute you" "God said: Let US make man in OUR image, after OUR likeness" "pray without ceasing" "beware false prophets" "do not be decieved" "Satan himself masquerades as an angel of Light" "I AM The Way, The Truth and The Life. No one comes to The Father except through me."

    • JesusMaryCatholicChristian
      JesusMaryCatholicChristian 4 ай бұрын

      Extra Ecclesiam Nulla Salus:

  • Kenneth Laster III
    Kenneth Laster III  Жыл бұрын +3

    Ok. I’m not sure if this was mentioned but watching that work made me think of the falling water air compressor. It was a perfect example of it. As it went you could even see the bubbles of it accumulate in the bottom container. I find them SUPER cool. An air compressor with no moving parts! A trompe I believe. That’s all. Thanks! 🙏

  • Tyler Spaeth
    Tyler Spaeth 11 күн бұрын

    Thanks you! I’ve been curious how this works. Optional question: could you make an invertible version (think hour glass) with the right combination of tubes and one way valves or something?

  • Homagee
    Homagee  Жыл бұрын

    This man's videos are in top-notch quality and it's so much educational yet super enjoyable!

  • Garrett Carlson
    Garrett Carlson  Жыл бұрын +2

    Wow! I love this. He explained that so well!

  • CMDR Kitty259
    CMDR Kitty259 3 ай бұрын

    I understood how it worked as soon as I saw the inner mechanism before he even explained it. I've never been taught about it before either.. I surprise myself with my own intelligence sometimes haha😳

  • wr0ng『4』R4bb1t
    wr0ng『4』R4bb1t 2 жыл бұрын +744

    These visualisations and explanations are just fantastic. Keep them coming.

    • wraitholme
      wraitholme 2 жыл бұрын +1

      GROHAM official No. Once the blob of air in the system is moved enough, the system reaches equilibrium and the movement stops.

    • Skechigoya
      Skechigoya 2 жыл бұрын +3

      He made me visualise a turd on the shelf perfectly.

  • Pinefenario
    Pinefenario 10 ай бұрын

    Nice video! Hey I don’t know if you have all ready done it. But how about a 2D - see through ejector video. Since this type of pump is used quite a lot in industrial applications.

  • godbaba
    godbaba  Жыл бұрын

    Since you are making videos about fluid dynamics a cool concept to demostrate would be thermal siphoning. Love your videos!

  • Todd Hensley
    Todd Hensley  Жыл бұрын

    Could you make a demo with a check valve on both ends so that you could rotate it 180° ? Or would you still need to prime it?

  • Avinash G
    Avinash G  Жыл бұрын +1

    Great way to explain! Looking for the next! I have fallen in love with your presentation!

  • Diz Foster
    Diz Foster 10 ай бұрын

    Design note- you may want to use less right angles on your drains, both for this and for the 2d Greedy Cup. Love your stuff.

  • Lavoye Bonham
    Lavoye Bonham 2 жыл бұрын +736

    I’d love to see a coffee percolator get the “2D” treatment.

    • Brad Miller
      Brad Miller  Жыл бұрын

      @PerkyBeatz Never did no harm
      Never did no harm

    • Cornelis Lucyus
      Cornelis Lucyus 2 жыл бұрын

      @Lavoye Bonham Like a Breaking Bad style siphon...

    • Kyle
      Kyle 2 жыл бұрын

      moka pot is superior imo

    • Medney
      Medney 2 жыл бұрын +4

      TechnologyConnections has a great video about them!! Check out his youtube channel

    • PerkyBeatz
      PerkyBeatz 2 жыл бұрын

      Isn't this reference to the song D.A.R.E by the gorillaz?

  • TrashcatLinol
    TrashcatLinol  Жыл бұрын

    Would a herons fountain concept be able to aerate a fishtank somehow? It'd be an interesting way to have a self-powered aerator to save energy!

  • R EE Z E K
    R EE Z E K  Жыл бұрын +53

    In dorms we call old "turd shelf" toilets simply "the stage" xD

  • Dr_Pseudo
    Dr_Pseudo  Жыл бұрын +1

    I knew how it worked by looking at it, what I want to know is can you make it infinitely repeat itself? And if so then can you elaborate why or why it wouldn't

  • SusanoRipper
    SusanoRipper 8 ай бұрын

    Man, this channel and Your knowledge, accent, pure passion...its is all magnificent. Makes me look at the world in not-so-simple way but at the same time, a real way of how it works. Much obliged, sir.

  • AndrewSM
    AndrewSM  Жыл бұрын

    Interesting physics demonstration! Well and simply explained!

  • Hel Nami
    Hel Nami 2 жыл бұрын +658

    I love that you even made a 1 dimensional demonstration for completions sake

    • Kängurumann
      Kängurumann  Жыл бұрын

      @Steve Mould Hey! Did you ask them about the 4D knot?

    • likerr
      likerr 2 жыл бұрын

      @Steve Mould Well only if you use lines. You can still tie a line in a knot with a plane or two planes together.

    • Corbald
      Corbald 2 жыл бұрын

      @protoborg My further refusal to be baited by your trolling does not represent a concession. It's quite clear that you are only arguing devil's advocate to goad me.

    • protoborg
      protoborg 2 жыл бұрын

      @Corbald Nope. Hawking radiation has NOTHING to do with virtual particles as in physics, a virtual particle is a transient quantum fluctuation that exhibits some of the characteristics of an ordinary particle, while having its existence limited by the uncertainty principle. Since not even the Heisenberg uncertainty principle applies inside the event horizon of a black hole, there is nothing virtual about the particles emitted. I clearly understand quantum effects better than you do.
      Actually you did try to equate 1 and -1. You said that the reverse timeline would be -1 * -1 while the forward timeline would be 1 * 1. While those equations are correct, you then said that reverse and forward are the same. In other words, 1 = -1.
      I understand physics better than you do, obviously. If I don't understand it then you definitely don't understand it.

  • tim sulley
    tim sulley  Жыл бұрын

    would love to see a 2d ram pump, but i imagine the forces would make sealing difficult

  • Sir Laughsalot
    Sir Laughsalot  Жыл бұрын

    Could do the airlift pump, although a really interesting one is the pulser pump which seems like a ram pump without valves, but still uses the trompe.

  • ShepardIRL
    ShepardIRL  Жыл бұрын

    i routinely encounter a lot of these demonstrations as a registered nurse while setting up IV tubing/fluids. this vid could certainly be used to explain how to prime IV tubing.

  • BoltGoesPro
    BoltGoesPro  Жыл бұрын

    I feel like it would be fairly easy to create perpetual motion pretty easily using this

  • Jose Roberto Enriquez Magaña
    Jose Roberto Enriquez Magaña 9 ай бұрын

    I personally find particularly interesting the Mariotte's bottle, maybe you can build a 2D version of it!

  • Sam Personguy
    Sam Personguy 2 жыл бұрын +195

    As I’m sure you can imagine, the rising of the water in toilets can be quite scary in the US as well if it doesn’t go back down

  • Ladder Lappen
    Ladder Lappen 9 ай бұрын

    this was actually quite trivial. thanks to you, i can feel smart now and my self esteem is raised.

  • Ben Matthews
    Ben Matthews  Жыл бұрын

    I would love it if you would do a video explaining the hydrodynamics of critical depth in culvert pipes during floods.

  • Tony bilco
    Tony bilco  Жыл бұрын

    Love these videos really interesting and educational iv learnt so much from this channel wish Steve was my teacher at school I might have been a scientist now...

  • JokesInBase13
    JokesInBase13  Жыл бұрын

    Could you get it to cycle through longer if you used several different fluids (i.e. air, oil, water, melted gallium) as long as the densities where in the right order?

    •LUNATICRIDER209•  Жыл бұрын

    This is what I’ve been looking for. I’m trying to make a reef tank that flows to the sump and back up to the reef tank without any electricity. Thanks for the video!

  • Jack Dalton
    Jack Dalton 2 жыл бұрын +283

    I really like the way you transformed yourself into a polistiren cube for the demonstrations with the tubes

    • Stephan Juvik
      Stephan Juvik 2 жыл бұрын +3

      Are you talking about the white cardboard screen?

    • Penny Lane
      Penny Lane 2 жыл бұрын +19

      Haha, when I read this, I did not pronounce "polistiren" like "polystyrene" but like "po-LISS-terrin". Took me a while ;)

  • Axel
    Axel  Жыл бұрын

    This would work with any fluids of different densities that don't mix. Pretty cool.

  • IIIlllIII
    IIIlllIII  Жыл бұрын +1

    It would be cool to see this effect with differently dense liquid s

  • Michael Féaux
    Michael Féaux 7 ай бұрын

    Really interesting and top-notch presentation.

  • Jasper
    Jasper  Жыл бұрын

    Hm... so you could make it work with different densities of liquid? (Using liquids that don't mix.) That sounds like it would look really good!

  • cassiwithoutane
    cassiwithoutane  Жыл бұрын

    I'm curious whether this would work with two liquids of different densities rather than air & water!

  • Simon U
    Simon U 2 жыл бұрын +876

    the "turd on a shelf" toilet was invented by Germany.
    as a German, I think this is the second worst thing we have ever done.

    • W Klemmer
      W Klemmer  Жыл бұрын

      @Veronica Oviedo how do you think they made the gummy bears

    • Stef_Draws
      Stef_Draws  Жыл бұрын

      is that why every time i go to europe i only see those toilets in the netherlands? cus nowhere’s i’ve been in germany has them.. that’s some hard regret for toilets lmao

    • Robert B
      Robert B  Жыл бұрын

      @aaaaaaaa yeah, you flush it like any other toilet… problem is that the shelf on which the excrement ends up after leaving your body can now be heavily soiled with remains which the water couldn’t remove… there were occasions on which the whole pile remained after flushing… and those remains are the ones I am talking about which need to be removed by “cleaning off the shelf”

    • aaaaaaaa
      aaaaaaaa  Жыл бұрын +1

      @Robert B wdym clean off the shelf? you just flush it like any other toilet.

    • Phantom Gato
      Phantom Gato  Жыл бұрын

      @Veronica Oviedo cmon we all know that's like 24th

  • Mike Boyd
    Mike Boyd  Жыл бұрын

    Using that wiring is genius! Great video!

  • Snowdrop
    Snowdrop  Жыл бұрын +1

    This thing looks extremely intuitive for me. Anyone else feel it was really intuitive as well?

  • EVO1148
    EVO1148  Жыл бұрын

    What fluids do you use for these hydrodynamic models? I presume water with food colouring? Just curious to what extent factors like capillary action and other hydrostatic forces play a role. Have you tried these same models with oil for example?

    EZ KILLIONAIRE  Жыл бұрын

    That's really cool. So i have a question then... What if you use liguids that have different densities? Like if you used oil and water? Would the water be able to "push" the oil to same way it did the air?

  • Robin REYNAUD
    Robin REYNAUD 9 ай бұрын

    I would be interested in seeing this kind of thing for a ram pump ! 🐐

  • Jim Johnson
    Jim Johnson 2 жыл бұрын +46

    In Germany, a young lady told me the poo-on-a-shelf toilet became common 'way back in the day because of parasites; people had to frequently check their stool to know if they were worm-free.

  • Mr TJP
    Mr TJP  Жыл бұрын

    You should examine the ratio of size and distance between the 2 containers in order to extend the 2d model.

  • Rivachrono
    Rivachrono  Жыл бұрын

    Is it possible to use heron's fountain as water filter/purifier or is it already being used?

  • Andre ROUSSEAU
    Andre ROUSSEAU  Жыл бұрын

    You wanted suggestions on other hydrodynamic mechanisms. How about branching out into a distantly related topic: fluidic logic elements, amplifiers and the like? They lend themselves well to 3-D printing re-creation. (NB sometimes referred to simply as "Fluidics").

  • Hesley
    Hesley  Жыл бұрын

    Your "2D" is just genius! Thanks and congrats!

  • Honey Ham
    Honey Ham  Жыл бұрын

    the detail about tubes in the middle partitioning something in half reminded me of the brilliant novel "The Planiverse" about a world entirely 2D and how things would need to be constructed to allow such a thing to work

  • GoodGuyJohn
    GoodGuyJohn 2 жыл бұрын +667

    8:24 "Because gas is denser than air" I mean, you're technically right, sometimes...

    • Downpeak Moore
      Downpeak Moore  Жыл бұрын

      I caught that too lol

    • Rafael Rocha
      Rafael Rocha  Жыл бұрын +2

      I believe what he is trying to say is: “Gas is less dense than liquid” or “Air is less dense than water”

    • Hello Kitty Fan Man!
      Hello Kitty Fan Man!  Жыл бұрын

      @NCZIOOX: OOPS! Oh my heck, yes, he did! What was GGJohn thinking?
      Anyway, either way, it doesn't make sense, since air IS gas.

      NCZIOOX  Жыл бұрын +1

      He said "gas is less dense than air"

    • AuditoryOdditor
      AuditoryOdditor  Жыл бұрын

      @Ville Saari ditto

  • Harry Ayres
    Harry Ayres  Жыл бұрын

    I expect somebody already said it but I'd like to see some 2D hydraulic valves!

  • Silkwood Art
    Silkwood Art  Жыл бұрын

    Okay, so even though prepetual motion mechanisms don't exist, I still wonder if there's any smart way to replace the water escaping the middle compartment while the fountain is functioning and at the same time removing the used water in the bottom compartment as well, in order to get a nonstopping action.
    Any ideas on how that might be achieved?

  • Przemyslaw Remin
    Przemyslaw Remin 10 ай бұрын

    7:46 That is marvelous part of your video. I managed to grasp how coil pump works. Thanks:-)

  • Maak Bow
    Maak Bow 9 ай бұрын

    An observation in this 2d syphon it it was leaking air from the middle resevoir when it lowers in volume, into the column that fills the top. Does this have any effect on efficiency? It appears that volumes or resevoirs and the air/water ratio in them would make an efficiency difference also?

  • Cerebrum Maximus
    Cerebrum Maximus 3 ай бұрын +1

    1:36 We had that one in our apartment in Bulgaria, but sadly our cousin broke something in the mechanism, and we had to replace the whole thing with a "normal" (UK or US, idk) toilet bowl. Fills me with nostalgia when I see this old design.
    Never thought I'd cry over a toilet bowl...

  • Totally Nuts
    Totally Nuts 2 жыл бұрын +551

    Ah, fluids. That subject which makes you remember air and void are two different beasts. (Because when you study rigid body mechanics and the likes, you consider everything to happen in a void)

    • Nicreven
      Nicreven 9 ай бұрын

      you mean a vacuum?

    • TheDeadOfNight37
      TheDeadOfNight37  Жыл бұрын +12

      @wojtekpolska I know I was just making a joke bc most of the time in physics they're usually both negligible or neither are

    • wojtekpolska
      wojtekpolska  Жыл бұрын +4

      @TheDeadOfNight37 actually it has nothing to do with friction, its the air pressure and surface tension

    • TheDeadOfNight37
      TheDeadOfNight37  Жыл бұрын +36

      When air and friction are not negligible 😔

  • A
    A  Жыл бұрын

    Cool! New subscriber. I've been looking for a clear explanation of these.

  • Kyle Klatt
    Kyle Klatt 2 ай бұрын

    This is really my favorite series on KZclip tbh

  • Tw||KickerJr
    Tw||KickerJr  Жыл бұрын +1

    Wish i had found this video sometime in school so I could explain what you have in this video as a science project of some kind.

  • 来いよオラ
    来いよオラ  Жыл бұрын


  • Evan Hoffman
    Evan Hoffman 9 ай бұрын +1

    Can you do a Heron’s fountain, with a Greedy Cup for the bottom chamber, to fill the middle chamber, when the bottom chamber gets full?

  • Ross McLaughlin
    Ross McLaughlin 2 жыл бұрын +310

    I remember seeing one of those crazy toilets with a platform when i was travelling around europe 10 years ago.
    I called it the poop deck

    • BAAS
      BAAS  Жыл бұрын +1

      That doesn't always work, I have had instances where the paper got flushed out from under the turd, leaving the entire turd just on the platform.

    • Herobox 1248
      Herobox 1248 2 жыл бұрын +2

      Yeah, you can still find those in the Netherlands. One tip: If you're going to lay a log, put a sheet of toilet paper on the platform first; it will flush away more easily without leaving skid marks.

    • SuperAWaC
      SuperAWaC 2 жыл бұрын +2

      pressure assisted siphon toilets are the most superior. euro toilets are bizarre and terrible

    • Bram Dingemanse
      Bram Dingemanse 2 жыл бұрын

      @Tom agree

    • hobomatic
      hobomatic 2 жыл бұрын

      ​@Tom yes well, if you are a professional poop inspector I can imagine this might be handy, but i will stick to tea leaves.

  • SeedlingNL
    SeedlingNL  Жыл бұрын +21

    We had those 'inspection shelf' toilets as well when I was a kid, spotted quite a few worms that way. You tend to get those parasites when you play outside a lot :D

    • Brad Miller
      Brad Miller  Жыл бұрын +2

      @Skidaddle Skidoodle Hookworms live in soil contaminated with human waste and get inside the body through the bare feet( Since that's what's on the ground mostly). Georgia Marie has a video about Hookworm here on YT if you're interested. :)

    • Skidaddle Skidoodle
      Skidaddle Skidoodle  Жыл бұрын +1

      How do you get them??

  • Sarah Cunningham
    Sarah Cunningham  Жыл бұрын +44

    US toilets scared me the first time I used one, I thought I was going to flood the place. I even took a picture of it to take back home 😅

    • Elly Catfox
      Elly Catfox  Жыл бұрын +3

      I've lived here my whole life, and I still find US toilets a bit dodgy. If the pipes are even just a bit slow then it multiplies the effect before the water goes down. Have been at other people's house where it filled right to the brim before emptying. /)_-

    • Geedis McJoizus
      Geedis McJoizus  Жыл бұрын +5

      As an American, I even question American inovation sometimes.

  • Franck Padilla
    Franck Padilla  Жыл бұрын

    Would this also work with 2 different liquids at different density?

  • David Willmore
    David Willmore  Жыл бұрын

    For the gasket you could use 3d printed TPU.

  • Tokumei LLC.
    Tokumei LLC.  Жыл бұрын

    I would love to see a 2D rendition of a "Ram pump" in action, or as close as possible.

  • james gates
    james gates 2 жыл бұрын +1063

    “Let’s make a U shaped tube”
    Maybe we should call it a KZclip?

    • Ian Taakalla
      Ian Taakalla  Жыл бұрын

      It’s a great metaphor.

    • MrGlobbits
      MrGlobbits 2 жыл бұрын

      I always said youtube was a toilet.

    • Jared Kennedy
      Jared Kennedy 2 жыл бұрын

      It worked for Periodic Videos

    • Victor Jun
      Victor Jun 2 жыл бұрын +3

      This sounds like a comment from 7 years ago.

  • Mackenzie DeMello
    Mackenzie DeMello  Жыл бұрын

    If it functions based off the density difference between air and water, would it work with liquids of different density, like water and oil?

  • Mohan Gurunathan
    Mohan Gurunathan  Жыл бұрын

    Brilliant explanation, bravo!

  • Ethan Wagner
    Ethan Wagner  Жыл бұрын

    Hi, would this fountain work with the air being vegetable oil? Consider it is lighter than the water and is still a fluid?

  • FacePalmDodger
    FacePalmDodger  Жыл бұрын

    Could you use a hydrophobic liquid in place of the air to allow for a longer cycle?

  • jonathan preziose
    jonathan preziose  Жыл бұрын

    You should have mentioned a ram pump. Those to me would qualify free energy even though there isnt. But the ram pump is a lot like this but can be installed to pump water and fill a tower or whatever at a higher level

  • D Tyle
    D Tyle 2 жыл бұрын +88

    It would be interesting to see with two liquids of different densities ie water and oil

    • Ivan
      Ivan 2 жыл бұрын

      @dont need to know I'm pretty sure part of the definition of a liquid is that its volume is constant so if that's the case then no; it would be a gas if you could compress it

    • Mondale
      Mondale 2 жыл бұрын

      @Isbell nooo im 24 mins late

    • dont need to know
      dont need to know 2 жыл бұрын +1

      @Triste 421 is there any liquid that can compress?

  • Bobby
    Bobby  Жыл бұрын

    That's pretty cool. It works kind of like a drinking straw.

  • breakingglass27
    breakingglass27  Жыл бұрын

    My first (and only) experience with that last type of toilet (the "lay and display", as I've read it) was in an apartment in Frankfurt, unfortunately the same night that I got awful food poisoning from some schweinshaxe (ham hock). Needless to say, it made a very bad night even worse.

  • YetAnotherBigD
    YetAnotherBigD  Жыл бұрын

    Steve, love these videos. I haven't seen one on the subject of Fluidics yet, do you have one? If not, can you make one? The ones I did find are dreadfully dull. en.wikipedia.org/wiki/Fluidics