The Truth About Toilet Swirl - Northern Hemisphere

  • Опубликовано: 3 июн 2015
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    Some notes about this.
    We each repeated the experiment 3 times, and got the same results every time. For those of you who might be skeptical, great! The good news is that right circularly prismatic kiddie pools are only $10 and you can do the experiment for yourself at your latitude. There's really no reason you shouldn't do this on your own, so before you criticize how we've done it, I'd strongly encourage you to do it for yourself.
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    Gordon McGladdery did all of the sound design for the video. We used two songs from other artists (licensed of course). Derek split the first one up so it fades from video to video, and Gordon split the instruments up on the second one. There are violins on one video and percussion on the other for example. It's really neat.
    The neat earth animation at the beginning and the synchronizing timer was made by He also made still images of the earth from the top and the bottom.
    Thanks to Jacob Vehrs for helping make the plywood pool platform.
    There was a study performed at MIT years ago ( that explained the physics involved. We repeated some of these demonstrations, but on opposite sides of the globe…and in a way that can be easily understood.
    This site is a great resource on the Coriolis effect and ways people have gotten it wrong:
    The Coriolis Effect influences the flight of a bullet.
    We would love for someone to replicate this demonstration. Please tweet your results to us @SmarterEveryDay and @Veritasium.
    Here's the link to puchase the exact same pool:
    Tweet ideas to me @SmarterEveryDay
    The thought is it will help educate the world as a whole, and one day generate enough revenue to pay for the kids' education. Until then if you appreciate what you've learned in this video and the effort that went in to it, please SHARE THE VIDEO!
    If you REALLY liked it, feel free to pitch a few dollars towards their college fund by clicking here:
    Warm Regards,
  • Наука и техникаНаука и техника

Комментарии • 6 069

  • Xanthopteryx
    Xanthopteryx 2 часа назад

    That's not the correct explanation of how Coriolis effect works.

  • gab Macpro
    gab Macpro 3 часа назад

    Avez-vous vérifié si la piscine était au niveau parfait ?
    Have you verified if the pool was at the perfect 0°degree level ? because it's a big mistake if it hasn't be done !

  • Evan Parker
    Evan Parker День назад

    i really like the 2 video experiment. it's like playing pink floyd and watching wizard of oz on the other side

  • Eddie Luttrell
    Eddie Luttrell День назад

    I like Drink from Vebistrabidum

  • Super DRiFT
    Super DRiFT 2 дня назад

    You can see that earth is round not Flat

  • Sir_Tactical_Slime
    Sir_Tactical_Slime 2 дня назад

    1:20 sounds like halo reach

  • Luminescent Lion
    Luminescent Lion 3 дня назад

    with 2 monitors it looks epic

  • Shawn Sutcliffe
    Shawn Sutcliffe 4 дня назад

    would this pool with the equator running right through the middle of the pool drain with no swirl at all?

  • Jose Luis Castaneda
    Jose Luis Castaneda 5 дней назад

    won't the side which the valve opens generate an uneven directional force while draining which could affect the way of the rotation?

  • pakaibil
    pakaibil 6 дней назад didn't do it in the "south 'hemisphere'" but that proves whatever you want to prove....phony

  • C jest
    C jest 6 дней назад

    can you please tell me why the tropical revolving storms recurve to east after initial movement to west once it reaches around 20 to 25 degrees north ?

  • ankush saini
    ankush saini 6 дней назад

    both of you..... !!!!!!... seriously

  • Juan David Santamaría Sánchez
    Juan David Santamaría Sánchez 6 дней назад


    BIG DOGE 7 дней назад

    So cool!!!

  • George Mason
    George Mason 8 дней назад

    Fun idea but idk how I'm supposed to play both of these at the same time given that your device will only allow 1 youtube window open at a time, and automatically stops videos when you hit play on another.

  • Debmalya Mukherjee
    Debmalya Mukherjee 8 дней назад

    Your view count and likes and dislikes numbers are also close..What a coincidence!..And I was already subscribed to Derek's channel.,Loved it.

  • mickavellian
    mickavellian 9 дней назад

    OK .... I have been in Brazil and New Zealand and the first thing I tried was flushing the toilets. BOTH flushed clockwise, As far as "science" Degrasse Tyson claims this clock/counter flushing is a myth and it all depends on the design of the toilet.
    I SAW IT , Degrasse Tyson confirms it.

  • Gary Koons
    Gary Koons 10 дней назад

    I would have at least clean my toilet first!

  • Raider Horse
    Raider Horse 11 дней назад

    Checking for if you can see my comment on other side

  • Kyle Riley
    Kyle Riley 12 дней назад

    That was super cool. Great job guys.

  • Bishop Racicot
    Bishop Racicot 12 дней назад

    we want more

  • Connor Freeman
    Connor Freeman 13 дней назад

    What If you have a drain on the equator

  • 1brennon11
    1brennon11 13 дней назад

    Wow that sync was amazing!

  • Hyacinthe1969
    Hyacinthe1969 15 дней назад

    Great job guys! Thank u both for ur efforts to help teach the world! :)

  • Sani R.
    Sani R. 16 дней назад

    whole video(s) gave me chills.. i felt very sciency aligning to videos and sync it. awesome video(s).

  • Mostlyharmless1985
    Mostlyharmless1985 16 дней назад

    I see what you did there, using metric units in the us, and imperial units in australia...

  • Dan L
    Dan L 18 дней назад

    Destin, I need your help.
    I live in the northern hemisphere. 3600 miles north of the equator. In my garage I have 2 side-by-side sinks. If I fill them both up, let them settle and pull both plugs, they both drain in OPPOSITE directions. Can you explain why please? Thanks.

  • slaptoad
    slaptoad 18 дней назад

    Hello from the other side, I must've subscribed a thousand times

  • Christophoro Baggins
    Christophoro Baggins 19 дней назад

    Hey I’d love to see you guys test the curvature of the earth, the coreoils effect, gyroscopes, and flat earth theory. You guys do a great job. I wouldn’t give this flat earth stuff a thought but for all these professionals coming forth saying there’s no way the earth is a sphere or has curvature. Thanks!

  • jtuno122
    jtuno122 19 дней назад

    You didn't prove anything. The experiment needs to be repeated with the same results every time.

  • Ju ch
    Ju ch 22 дня назад

    Marvelous executed

  • Ziggurat XYZ
    Ziggurat XYZ 23 дня назад

    That synchronisation experiment was absolutely fantastic.

  • possessedllama
    possessedllama 23 дня назад

    I love how you have to watch these together for all of the narration to sync up - and the synced "wish me luck" "good luck" bit :)

  • Nitish Srivastava
    Nitish Srivastava 23 дня назад

    What if I’m already happily subscribed to both of you?

  • That one Moon Base Alpha player
    That one Moon Base Alpha player 25 дней назад

    Why not try it at the equator

  • A. Cesário
    A. Cesário 26 дней назад

    Amazing video! Congrats.

  • Khalis Suhaimi
    Khalis Suhaimi 28 дней назад

    BOTH OF YOU GUYS....(go to derek's video to see the rest of the comment)

  • Gavin Martin
    Gavin Martin Месяц назад

    Say nh is left side of a road and sh is right side of a single road. The sun and moon move in the middle in one direction. The sun or moon or both are pulling the water in the same direction causing opposite swirl. Theres ur alternate reason. A youtube user posted a video showing a cue ball always leaning to one side in relation to n/s positioning of the pool table. Says its the coriolis effect. I asked him to replicate in more than one setup. Guess removed. Subject Was about nimrod giants strangely.

  • Jackson Large
    Jackson Large Месяц назад

    I synchronized them perfectly!

  • Nadesmond
    Nadesmond Месяц назад

    ok wait wait i have two 50" screens let's synchronize!

  • *User.Aaron*
    *User.Aaron* Месяц назад

    Where you at Northern flat-earthers

  • Samuel Langweil
    Samuel Langweil Месяц назад

    Can I mention how the American used the European measurement and the Australian/Canadian used the American measurement?

  • Jack Fredricks
    Jack Fredricks Месяц назад

    This video has more views but fewer up votes and a few more down votes.

  • josorr
    josorr Месяц назад

    At the time of this post, (10:15p.m. CST January 13 2018) Derrick (Veritasium) has 2,353,129 views and 64,458 likes. Destin (SmarterEveryDay) has 2,593,141 views and 63,781 likes. So, Destin has more likes, but Derrick has more views

  • DiGiTaL CuRReNCy Crypto Tips
    DiGiTaL CuRReNCy Crypto Tips Месяц назад

    amazing video's and its just proof about the toroidal waves and magnetism being a fundamental key of life. Its weird that i see so many similarities between this shape and lots of things in life like religion but also why we have stronger connections with random people then others... because we all are a toroidal is some form and some stronger then others.

  • Sastkryptlox
    Sastkryptlox Месяц назад

    Incredibly awesome idea - one of the best RUclip collabs I have ever seen!!

  • dylan casto
    dylan casto Месяц назад

    You did not eliminate all the variables, did you check to make sure the pool was level or the type of metal you used

  • General Incredible
    General Incredible Месяц назад

    885 flat earthers disliked.

  • Its Dextrin
    Its Dextrin Месяц назад +1

    Dying Children in Africa could have used that water......

  • Anand Viswanathan
    Anand Viswanathan Месяц назад

    The sync was too good. The amount of effort is unbelievable

    YASH RAJ SHARMA Месяц назад

    the best thing i've watched on internet

    MATTER OF A FACT Jones Месяц назад

    White people are f n weird as they think they are times a trillion

  • John Doesitintheair
    John Doesitintheair Месяц назад

    Lol, world is still flat... flat earth retards?

  • Anthony A.
    Anthony A. Месяц назад

    How come I didn't know this

  • Tim Cunningham
    Tim Cunningham Месяц назад

    My dual monitor setup with Destin on the left and Derek on the right was insane!

  • Angelo Parodi
    Angelo Parodi Месяц назад

    Didn’t sync them😪

  • Gregory Paul George M
    Gregory Paul George M Месяц назад


  • Xelexotrov
    Xelexotrov Месяц назад

    wait. hold on. so people actually thought that?

  • Ethan Brody
    Ethan Brody Месяц назад

    This was great

  • Pzyko TV
    Pzyko TV Месяц назад

    This is the most original collaboration i have ever seen! I am amazed! Thank you so much for this!

  • collin
    collin Месяц назад

    Who else didn’t synchronize or subscribe to veritasium 😎

  • VanDerCroiX
    VanDerCroiX Месяц назад

    first time dual monitor was totally worth it :')

  • Abdulmuati Asiri
    Abdulmuati Asiri Месяц назад

    Wow that was amazing

  • Jerry Fang
    Jerry Fang Месяц назад

    I've always knew the water swirl in different direction between the 2 hemisphere when I was a kid. I've told friends and family about it and they thought I was crazy. Now thanks to your guys, ya just proved it. :)

  • The BlockHeads
    The BlockHeads Месяц назад

    This is so cool!!!!! And I have two monitors so I was so happy to see you guys switch places the right way at the end

  • Danny Forrest
    Danny Forrest Месяц назад

    Love it!

  • Stupid Engineer
    Stupid Engineer Месяц назад

    what is this? lol...

  • Conner Vieira
    Conner Vieira Месяц назад

    That was awesome! Really creative!

  • trondx
    trondx Месяц назад

    I'am sorry. This was bad science. The seize and shape of the pool was good enought at my opinion, but You have to repete the draining at least ten times, to get a tiny indication. Sorry guys, thumbs down.

  • Aon Arts
    Aon Arts Месяц назад

    This was supremely awesome!!!!! Best experiment implementation using the internet I’ve ever seen! YESSSSSSSSS!!!!!!

  • Aon Arts
    Aon Arts Месяц назад

    This was magical c

  • Peter Ryseck
    Peter Ryseck Месяц назад

    What would happen on the equator?

  • Peter potopus
    Peter potopus Месяц назад

    the video looks really dumb when just watching it by itself and not with the other video playing lol

  • Tim Nafziger
    Tim Nafziger Месяц назад

    TOTALLY AMAZING -- great version!!! I totally enjoyed this!!

  • eye4invisible
    eye4invisible Месяц назад

    Awesome collaboration and editing!

  • William Badzio-George
    William Badzio-George Месяц назад

    You çonducted this experiment with one pool in one hemisphere. It's not going to absolutely prove the theory correct.

  • Andromeda Gaming
    Andromeda Gaming Месяц назад

    Im subscribed to both of you! Great video

  • Banbino Gaming
    Banbino Gaming 2 месяца назад

    One day i was washing dishes and i spined wather clock whise and at the last second the water turned counter clock whise and that was super weird

  • Ratsquid
    Ratsquid 2 месяца назад

    I did this experiment not long ago right tap made a clockwise rotation left tap made anti clockwise rotation and water left for a long time went straight down with a satisfying glug. I like science and the fact we are taught theory as fact is insane

    • Kel Duck
      Kel Duck Месяц назад

      So you had no understanding of this video.

  • Richard Yuan
    Richard Yuan 2 месяца назад

    what if ur on the equator

  • Luka Stefanovic
    Luka Stefanovic 2 месяца назад

    Earth does not spin, it is flat and rests on a back of a giant turtle walking through space

  • Alexandre Hamada Possi
    Alexandre Hamada Possi 2 месяца назад

    Cool experiment, but I wish you had repeated it a few more times to make the results stronger. But hey, thanks for validating my abnormally wide screen!

  • Camilo G
    Camilo G 2 месяца назад

    I've never commented on a RUclip video before, but this double sync video deserved it. Great job.

  • An Interstellar Odyssey
    An Interstellar Odyssey 2 месяца назад +1

    Difference of 200,000 views so 200,000 idiots

  • Gear and Outdoor GER.
    Gear and Outdoor GER. 2 месяца назад

    This is so cool watching two videos that interact with each other. This is so difficult to cut

  • Lukas Cameldooski
    Lukas Cameldooski 2 месяца назад

    That was amazing

  • John Nanney
    John Nanney 2 месяца назад


  • B33S_BOT99
    B33S_BOT99 2 месяца назад

    So fascinating!

  • Youmo Yan
    Youmo Yan 2 месяца назад

    Great work, BTW, Hank, I still love you.

  • BigLu
    BigLu 2 месяца назад

    That was so cool.

  • 23soki23
    23soki23 2 месяца назад

    I had finally did the two monitor synch I was amused more about the timing if everything then researching the experiment...

  • MrFlippy Music
    MrFlippy Music 2 месяца назад

    I hope that you find the other sid
    Is this making any
    If it actually is, reply to this comm

  • Bob Johnson
    Bob Johnson 2 месяца назад

    You already admitted it was random, and sometimes it rotates clockwise and sometimes it rotates counterclockwise.
    One time is not a sufficient sample size.
    repeat the experiment 100 times.
    Then get back to us.

  • Farisan Hafizh
    Farisan Hafizh 2 месяца назад

    I liked and commented this video and the other one at the same time

  • Gibson Kevin
    Gibson Kevin 2 месяца назад

    Now for some really cool effects Im going to watch it upside down.

  • Half Elf Gaming
    Half Elf Gaming 2 месяца назад +1

    this is cool

  • Nicholas James.S
    Nicholas James.S 2 месяца назад

    what an absolutely incredibly display of science, and film making merging flawlessly. by far the best video i have ever seen on youtube by far with no exaggeration.

  • Kevin Houston
    Kevin Houston 3 месяца назад

    SmarterEveryDay: I don't see how you can, logically or reasonablly, maintain a swirling Coriolis Effect on a globe where the overall atmosphere is not even independent of the landsphere in it's midst. Afterall, globalists MUST maintain that both the landsphere & atmosphere are moving at the exact same speed. If the atmosphere were not moving, at all, then the landsphere would cause anybody, who is standing on it's surface, to experience as much wind resistance as the speed-of-spin is at his or her geological location. If standing at the Equator, then about a 1,000mph of wind resistance would be generated as the landsphere moved you against the still air in the atmosphere. It would be like trying to stand on the wing of a futuristic jet that can travel at the speed of 1,000mph. This is why globalists MUST maintain that both the atmosphere & landsphere move together at the same rate of speed. If there was even the slightest difference, between the two, then stillness of air could NEVER be experienced on a globe and the swirling Coriolis would have a cause and ever be in effect because of it. However, stillness of air is QUITE OFTEN experienced all over the world. It doesn't even matter if the Equator is moving faster than, per se, the Tropics (Cancer & Capricorn) because the amount of land to speed-of-spin ratio, experienced at every line of latitude, in the whole landsphere, is equal in proportion to every other part. It has to be because it is connected, thereby, allowing no excess force to be experienced (from the overall unit thereof) when transitioning between differing speeds in differing geological locations. The same would, alikewise, be true for the overall atmosphere. Since the amount of air to speed-of-spin ratio, experienced at every line of latitude, in the whole airsphere is equal in proportion to every other part. It has to be because it is connected, thereby, allowing no excess force to be experienced (from the overall unit thereof) when transitioning between differing speeds in differing aerospace locations. And since so called: "outerspace" consists of no substance, at all, then the atmosphere would receive no frictional resistance on it's convexed outer rim from that. Nonetheless, it's concave underside, being a thick gaseous air fluid, would interlock with the landsphere's round ridgity surface (like a bike chain on a sprocket) and, therefore, would allow no kind of swirling motion (or Coriolis Effect) to be experienced (from the overall conjoined unit thereof) when transitioning between differing speeds in differing landsphere-to-atmosphere connected locations. This is because they are married & interlocked as a conjoined unit themselves. Though one is harder than the other, they are conjoined & propelled together at the exact same speed. Such would allow for isolated disturbances (due to other factors) but never as a direct cause of their overall union. This leaves the swirling Coriolis Effect with no CAUSE! So in order for you to continue maintaining the false notion, you will have to dream of a slightly offset atmosphere-to-landsphere connection by which absolute stillness of air is never experienced on the face of the whole globe (even though, in reality, stillness of air is often experienced all over the world in many different locations). Nonetheless, you absolutely can NOT have it both ways, Sir!!! And finally, here is a video of two whirlpools draining side-by-side but in opposite directions to one another ---видео.html --- Furthermore, the world's record sniper shooter mentions many variables but the Coriolis Effect is not one of them ---видео.html --- Please don't let your pride cause you to give a dishonest response, Sir.

  • jesokingcryst
    jesokingcryst 3 месяца назад