Which Way Will the Water Go? (ft. Steve Mould)- Smarter Every Day 226

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  • Published on Oct 13, 2019
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    Steve Mould's Channel:
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  • Science & TechnologyScience & Technology

Comments • 4 138

  • Tom Edwards
    Tom Edwards 29 days ago +4918

    Steve is a really smart guy if you ignore the British accent"
    **angry tea clink noises**

    • David Taylor
      David Taylor 2 days ago

      @Stephen Benner The odd thing is the Alabama accent doesn't sound dumber when you weren't raised to perceive that.

    • Chris Rivas
      Chris Rivas 5 days ago

      @Tom Edwards was it an alcoholic rage ? Lmao

    • astroflush 10
      astroflush 10 8 days ago

      I spilled my earl grey tea all over me crisps and crumpets

    • urnotfunny atall
      urnotfunny atall 15 days ago

      End the fed.

  • 7177
    7177 41 minute ago

    you both are great!
    btw. there's a section in Feinmans autobiography about trying a similar lab experiment. It was about the same kinda lawn sprinkler sucking in water put under and the direction it'd go afair. (:

  • Pavan jalla
    Pavan jalla 5 hours ago

    Two high needy guys playing like 6 year old

  • Shawn Reneau
    Shawn Reneau 12 hours ago

    That's the coriolis effect. It's taught in mechanical physics.

  • Xinwei Sher
    Xinwei Sher 13 hours ago

    You are wrong.

  • Dene. F.
    Dene. F. 19 hours ago

    He's English.

  • Wayne Sligar
    Wayne Sligar Day ago +1

    I have found over the years that lessening to 2 or more people that if you combine the thoughts together you might come up with a better solution because most everything can have multiple ways to get things done

  • Daryl Loth
    Daryl Loth Day ago

    This is an interesting empirical observation of a physical phenomenon. The physics behind it are more complicated and the explanation in this video is not adecuate. Both these guys are intelligent but it would require someone with a stronger background in physics to explain it properly.

  • Chris Choi
    Chris Choi Day ago

    nah, for the first one, destin is totally wrong. if it was a question on a physics exam, steve would get the point and destin would get it incorrect

  • Omar Muhamad
    Omar Muhamad 2 days ago

    so i have a turbo machinery exam and i couldn't understand the velocity triangle of the centrifugal pumps until I remembered this video and i got it once I saw it, thanks man

  • Maarku
    Maarku 2 days ago

    WARNING: This video contains no laminar flow. Watch at your own risk!

  • Andreas Kasel
    Andreas Kasel 2 days ago

    Hello SmarterEveryDay - I miss videos on the Cavendish expertiment (directly measuring gravity) on TVclip. you too ?

  • emgee44
    emgee44 2 days ago

    What a great collaboration, came here after watching a Steve’s video.
    Your insight at the end to understanding someone’s POV was just as big a takeaway as the actual experiment. You are truly making us smarter everyday and for that thank you.

  • VoltisArt
    VoltisArt 2 days ago

    Paused before experiment started. The discussion is over the direction of the water, but that's problematic. The droplets/molecules of water do not curve outside of gravitational effects, they must travel in a straight line after exiting. The observed collected stream/jet made of those parts, however, trails behind each nozzle.
    Destin's idea that the stream or droplets will come out with forward momentum at an angle ahead of the nozzles is understandable but should only happen to a small amount of water, for a short moment, if the spinning nozzles come to a sudden stop.

    • VoltisArt
      VoltisArt 2 days ago

      Second experiment done, observations made. Had to watch twice, will probably have another go after writing this. Mind blown in the best way. While I'm not nearly as educated in physics as Destin, I too was made aware of some arrogance and being stuck in what I expected, though I wasn't discussing or arguing with another person.
      (Now that I've seen the video, I browsed a few comments and...) I share Johan Ung's appreciation for the insight Destin shared. Be it an argument with a person or just understanding of an idea, we can all benefit from pausing to absorb everything, be open to some things we hadn't considered before, and be able to learn. Great video on several fronts. Thank you, Destin and Steve.

    • VoltisArt
      VoltisArt 2 days ago

      Paused again after first experiment. Both of them right in different ways. Physics 'Tubers 2, VoltisArt 0.
      Inward jets...should each be running like the fist experiment, with that trailing tangent not reaching the central pivot. How close it comes depends on water velocity...maybe. (The more we learn, the more we realize we don't know.) I think the observed stream curve could be a little more interesting.
      Edit while I work on reaction #2: The tangent was never trailing....the stream was. Big clue to the result but so counter-intuitive!

  • Clickpn
    Clickpn 2 days ago

    if there was no velocite outwards, mind you, not by centrifugal forces(don't exist) but by the existing pressure from the water system, the effect would be the same, only with inertia.

  • Frederyk Deng
    Frederyk Deng 2 days ago

    Please correct me if I am wrong, though I naively think there is an easier way to figure out the correct answer: Consider a drop of water, after leaving the pipe, since there is almost no force in the plane of rotation, it maintains its angular momentum. Therefore, when it "flies" away from the "rotation" center, the angular speed goes down, thus "lagging" behind. When it "flies" towards the "rotation" center, the angular speed will go up, thus "running" in front.

  • lawrence kanyan
    lawrence kanyan 2 days ago +2

    The second case is a good demonstration of the Coriolis effect.

  • John Thomas
    John Thomas 2 days ago +2

    Destin sneakily teaching everyone vector addition lol

  • Build&Brew
    Build&Brew 2 days ago

    this is a classic physics puzzle where there is a serious physics principal that just breaks the way a brain thinks about things experientially.

  • rocket boards
    rocket boards 3 days ago +5

    The wisdom at the end was smarter than the physics puzzle =)

  • Andrew Bettcher
    Andrew Bettcher 3 days ago

    Excellent. Thought provoking conclusion that makes a perfect lesson for the world.
    Don’t fight. Try to understand.
    Obviously, once you do understand, you might still have opposing views. At that point, I guess you have to fight.
    Peace and love. Peace and love.

  • Jose Fco García
    Jose Fco García 3 days ago

    Like because of the conclusion

  • goodshorts
    goodshorts 3 days ago

    youtuuube awesome

  • Dyllan Carignan
    Dyllan Carignan 3 days ago

    I love Smarter Every Day, and Steve's Channel. I think I encountered SED from a colab with Veritasium, and I encountered Steve from a colab with Matt Parker. I love how the TVclip science community is so interconnected and you can see some brilliant people doing brilliant things together.

  • BlankEssence
    BlankEssence 3 days ago

    Thanks J-Roc

  • MAGA
    MAGA 3 days ago +2

    Hey DESTIN. There is a video called “spinning t handle in zero G”. Very interesting. I would love to hear you explain why spinning it in one direction cause it to intermittently spin on a different axes

  • DRMNZ
    DRMNZ 3 days ago

    Great video, thanks. The comment about listening and taking time to understand the other person's point of view was perhaps just as fascinating as what I discovered about the water. Just recently, I learnt when we have an existing belief or (unknown) existing assumption our brain finds it difficult to take in new information. Years ago I read one of Debono's books on thinking and one suggestion of his is don't believe / disbelieve in anything 100% - so it allows our mind to absorb new info. He had a wonderful diagram of a ring over a stick suspended above a "pit of ?iniquity" As you learnt more about something you could move the ring along the stick toward one end belief or the other end disbelief. 100% belief or disbelief meant the ring would come off the end of the stick and fall into the pit. If it stayed on the stick, it was much easier to absorb new info and thus be able to move backwards (or forwards) on the stick. Cheers, David.

  • Piotr Grądkowski
    Piotr Grądkowski 3 days ago

    In Phaeno Science Center in Wolfsburg, Germany, there is an exhibit demonstrating this very Phaeno-menon. However, I thought it had more to do with the Coriolis effect.

  • anil
    anil 3 days ago +1

    It'll be very interesting to see the light version of this. Revolving optical fibres that are transmitting different colours

  • Jason Hallam
    Jason Hallam 3 days ago

    hey Destin i am a big fan, have you heard of the Hilsch Vortex tube? the device that sends ambient air in and seperates it using black magic or wizardry and outputs hot and cold from either end?, just wondering if you would kindly explain why this happens as im clueless and i want to get smarter everyday :)

  • D Smith
    D Smith 4 days ago

    Two countries divided by a common language, They say

  • ryansadventuresontheinternet

    My intuition: as you move closer to the center of the circle, you traverse more of the circumference of the circle in less time, so even though water droplet is going at a constant speed, relative to the spout it looks as if it has travelled a farther distance.

  • Blaine Charlery
    Blaine Charlery 4 days ago

    I love this guy

  • TheDaviecoyle
    TheDaviecoyle 4 days ago

    More with Steve please

  • danny obrian
    danny obrian 4 days ago

    You and Steve are awesome !

  • Andreas Stjerneklar Kristensen

    the thing with disagreements is a great lesson - reminds me of this practice in programming where people often find the issue with their code simply by describing it to somebody else. this forces the programmer to zoom out and sort of change their perspective.

  • Thomas Allen
    Thomas Allen 5 days ago

    wholesome dude

  • JdsschuJfsxviin
    JdsschuJfsxviin 6 days ago

    Wtf happend? Its so weird!

  • Marko Rakic
    Marko Rakic 6 days ago

    I understood your perspective, and it is awesome!

  • Damon
    Damon 6 days ago

    Excellent takeaway moment at the end. I appreciate the reminder. ;)

  • Ivan4es1
    Ivan4es1 7 days ago

    This is impossible. You broke Matrix.)

  • streglof
    streglof 7 days ago

    Is this just a very clever and subtle way of illuminating the political and ideological divide in the US?

  • Ron Paul
    Ron Paul 7 days ago

    If you learned from rewatching this video, Destin, you should read "12 Rules For Life: An Antidote to Chaos."

  • Anodyne Melody
    Anodyne Melody 7 days ago

    “When I disagree with someone it is imperative that I stop, I listen, and I don’t move on until I completely understand the other person’s perspective”

    • Anodyne Melody
      Anodyne Melody 3 days ago

      @Bassem B. That's true, Bassem, I suppose a small percentage of all humans will behave mysteriously no matter what the situation is or how ineffable their thought-process.

    • Anodyne Melody
      Anodyne Melody 3 days ago

      @kchen075 Thanks for your discussion!

    • kchen075
      kchen075 4 days ago +1

      Ah wait a minute, it was because of the premier feature on youtube. Mystery solved.

    • kchen075
      kchen075 4 days ago +1

      Dislikes could be on a whim. For example, I liked this video, but I could very easily just press the dislike button just because I can. There are no consequences for me nor are there any for Destin. Some people(I don't know exactly who) just press the dislike button on every video they encounter whether they liked it or not.
      And of course there are the people who actually disagree with some point made in the video or something happened in the video that made them upset enough to dislike.
      And people who misclick the like button.
      Those are 5 possible reasons people dislike a video.

    • Bassem B.
      Bassem B. 4 days ago +1

      Dislikes can be a mystery. I've seen dislikes on videos of kittens and puppies playing, anything.

  • former pilgrim
    former pilgrim 8 days ago

    Tracer rounds fired at night from a machine gun tracking targets in the air appear to be ‘curving’ in flight also.

  • astroflush 10
    astroflush 10 8 days ago

    Yeeyee I am from Alabama

  • Dylan Bishop
    Dylan Bishop 8 days ago

    Paused at 1:58. My hypothesis is that the force pushing the water outwards is converted to force pushing the water inwards at the curve. The shape from above will look something like a cone as the water is pushed inwards following the spinning motion of the contraption.

    • Dylan Bishop
      Dylan Bishop 8 days ago

      My original hypothesis was definitely wrong, I didn't think about the vectors of force correctly. I think the curve in the metal pipe creates an inverse effect on our eyes. Very fascinating!

    • Dylan Bishop
      Dylan Bishop 8 days ago

      Paused again at 3:15. Destin, I believe you are wrong about the simpler version as well. The way Steve described most people's intuition would be accurate, as a projectile that is released from a rotating object does not continue to rotate, but remains on the vector it was traveling at the moment of release.

  • Sp1der44
    Sp1der44 9 days ago

    Loved that profound observation at the end there - that's great stuff. After my Brain got done exploding for like seven minutes I too came to an interesting observation that you seem to also have uncovered some limitation in the human brain that even after having it magnificently explained with slow mo and graphics and everything the (my) brain still processes this overstimulating physics as an optical illusion of arcing curves that frankly seem to completely defy logic, and yet, once explained don't. Yet another brilliant video Destin - going over to check out steve moulds channel now :)

  • MR.pickle bear
    MR.pickle bear 10 days ago

    Just a thought, maybe he forgot the air resistants?

  • 0MindSwept0
    0MindSwept0 10 days ago

    It’s funny how you say when you think the other person is wrong you stop listening to them, because one time I thought I was arguing with this one guy only to figure out later that we were both arguing the same point, just like you two 😂

  • Piotr Leśniak
    Piotr Leśniak 10 days ago

    9:50 how Americans are seen around the world

  • Al Paca
    Al Paca 10 days ago +13

    "Seems like a smart guy if you can look past the British accent"
    - Forrest Gump
    - 2019

  • Clomry
    Clomry 10 days ago

    Isn't it a Lagrangian VS Eulerian point of view thing ?

  • Benjamin Davis
    Benjamin Davis 11 days ago

    The youtube collaboration of greatness! Can't wait to watch!

  • fvcker gonna fvck
    fvcker gonna fvck 11 days ago

    this channel became smarter every couple month

  • David Lanphear
    David Lanphear 11 days ago

    0:20 Stephen looks so high🍃😅

  • Wes Netmo
    Wes Netmo 12 days ago

    that really messed up with my brain

  • Antonio Remedios
    Antonio Remedios 12 days ago

    Who else thought of the treyarch symbol when he spun it

  • Jeff W
    Jeff W 12 days ago

    Pausing the video and trying to visualize the water path made my brain melt. But when you see it, it seems so obvious.

  • ANISH KUMAR SINGH
    ANISH KUMAR SINGH 12 days ago

    If you take the snapshot of the first example and start bending the end of the pipe along with the water coming out, you finally get the same shape when the end is inward