Testing If You Can Blow Your Own Sail

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  • Опубликовано: 1 мар 2024
  • You now know 7 amazing new things and that’s cooler than magic! Get the CrunchLabs Build Box! Two FREE boxes at crunchlabs.com/teaser
    I started a company called CrunchLabs, where we build a toy together, and then I teach you all the juicy physics of how it works. So if you want to learn to think like an engineer and have a really fun time doing it, check out the current promotion where you get 2 FREE boxes at crunchlabs.com/teaser
    Thanks to these folks for providing some of the music in the video:
    Ponder - @Pondermusic
    Laura Shigihara - @supershigi
    Andrew Applepie - / andrewapplepie
    Blue Wednesday - / bluewednesday
    NO PURCHASE NECESSARY. Promotion starts on 1/1/2024 & ends on 12/31/24, subject to monthly entry deadlines. Open to legal residents of the 50 U.S. & D.C., 18+. 1 prize per month: each month is its own separate promotion. For the first 2-3 months, winner may be notified via phone call instead of winning game piece. If a monthly prize is unclaimed/forfeited, it will be awarded via 2nd chance drawing. See Official Rules at crunchlabs.com/sweepstakes for full details on eligibility requirements, how to enter, free method of entry, prize claim procedure, prize description and limitations. Void where prohibited.
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Комментарии • 16 тыс.

  • @MarkRober
    @MarkRober  2 месяца назад +6399

    You now know 7 amazing new things and that’s cooler than magic! Get the CrunchLabs Build Box with two FREE boxes here- crunchlabs.com/teaser

  • @YouTube
    @YouTube 2 месяца назад +24858

    seated for science class

    • @thedeathmatchrun2366
      @thedeathmatchrun2366 2 месяца назад +890

      I'm gonna copy your homework in science class

    • @anikor7860
      @anikor7860 2 месяца назад +1059

      Actual youtube watches mark rober on RUclips isnt that crazy

    • @irobot67
      @irobot67 2 месяца назад +320

      Where are the custom 20 million play buttons?

    • @I_eat_toes789
      @I_eat_toes789 2 месяца назад

      Nice

    • @EzyPup
      @EzyPup 2 месяца назад +107

      14 likes

  •  2 месяца назад +3949

    If only school were as entertaining as Mark's videos...

    • @Henyahyah
      @Henyahyah 2 месяца назад +62

      Oh no it’s X they’re everywhere

    • @Landybryce
      @Landybryce 2 месяца назад +15

      OOGA booga

    • @Wenas2005
      @Wenas2005 2 месяца назад +3

      @@Landybryce berbagiwenas @rekaputri

    • @Wenas2005
      @Wenas2005 2 месяца назад +2

      @@Henyahyah baru kenal wenas @rekaputri

    • @Landybryce
      @Landybryce 2 месяца назад +3

      @@Wenas2005 yes

  • @oussamaoso
    @oussamaoso 3 дня назад +5

    As someone graduated in physics, I have never seen such a clear explanation of what the coriolis effect actually is. Amazing.

  • @G_Bl4ze
    @G_Bl4ze 18 дней назад +79

    Bro Mark Rober is the GOAT of science because of how simple he makes science so that everyone can understand.
    Thank you Mark Rober!

    • @HWP_010
      @HWP_010 11 дней назад +1

      نقدم فيدهات short قصيرة لحلول اكثر المشاكل شيوعًا في المنزل لايفوتكم باللغة العربية والإنجليزية ❤

  • @andrepereira3338
    @andrepereira3338 2 месяца назад +1865

    Regarding the backpack: when you study vibrations in engineering, you learn that there's a specific frequency in which you can vibrate a spring-mass system where it will not transfer that movement to the mass. That's why there's a "sweet spot", and all the people in the commercials were running with that sweet spot frequency, where the backpack barely moved even while they were running (i.e. the movement of the person was barely transfered to the backpack). This depends on the spring constant of the springs used, and on the mass of the system (the backpack and whatever's inside it). So if Mark were to put more weight in the backpack, he'd have to find a different running frequency in order to get the same effect.
    Thanks for sharing all these cool experiments and knowledge with us, Mark! You're awesome!

    • @marzipancutter8144
      @marzipancutter8144 2 месяца назад +77

      Now I'm wondering if it was possible to adjust the stiffness of the spring on the fly. It might be completely impossible to do this to a degree where it can be controlled electronically in real time, but it's a fun thought to imagine the backpack changing its spring constant to stay in the sweet spot for any given mass and walking speed.

    • @jarsky
      @jarsky 2 месяца назад +51

      @@marzipancutter8144 You could probably leverage automotive engineering concepts for this rather than electronically. If you look at suspension, there are progressive springs which as the spring compresses changes the resonant frequency. You can also get dual rate springs, where you have a main spring of one size/rate, and another spring of another below it on the same strut. That would be ideal for riding on the main spring and retaining resonance over the flat, and the shorter stiffer spring for taking the big dips, and again should stop it from falling into another phase frequency. But of course you would still have the issue of the frequency being dependant on the weight of the pack.

    • @aaronkoning7255
      @aaronkoning7255 2 месяца назад +19

      I imagine this is exactly how birds can run with their head completely stationary. Their neck muscles are like a spring, and their head is actually bouncing up and down perfectly in sync with their legs.

    • @Lovely_Tea_drink
      @Lovely_Tea_drink 2 месяца назад +3

      Lovely reply

    • @13Nagash13
      @13Nagash13 2 месяца назад +13

      My question is how do hikers with long hair keep the hair out of the moving tracks?

  • @city-ships
    @city-ships Месяц назад +64

    Your explanation of Coriolis effect is really clear. I cannot explain like you even I am a physicist. Thank you.

  • @915CLOS915
    @915CLOS915 19 дней назад +17

    Love the way you explain everything in Layman's Terms. Thank you for sharing all this content with all of us!!!!!!!!!!!!

  • @mikiqex
    @mikiqex 2 месяца назад +856

    That backpack reminded me, if you walk with your drink, the equal frequency of your steps is building up waves in the mug, so ultimately you spill it. I do my "silly walk" with unevenly distributed steps and it truly helps make my way without spillage. With that walk I basically create waves that go against the waves I already created in the mug, mimicking how active noise cancelling works in ANC headphones.

    • @rambot670
      @rambot670 2 месяца назад +6

      thanks for the tip!

    • @RampageG4mer
      @RampageG4mer 2 месяца назад +84

      You should apply to the Ministry of Silly Walks

    • @Realboofpackog
      @Realboofpackog 2 месяца назад +7

      Deja vu intensifies

    • @eitantal726
      @eitantal726 2 месяца назад +3

      I heard that if you grab the mug from the top, it won't slosh as much

    • @ubentobox
      @ubentobox 2 месяца назад +10

      I know of the walk you speak of and have had to use it in certain circumstances, but I've had more luck trying to act like a gimble and it's more satisfying when you don't spill XD.

  • @OfentseMwaseFilms
    @OfentseMwaseFilms 2 месяца назад +4372

    1st time learning the difference between a Cyclone and a Hurricane. I thought one is air, the other is water based.

    • @ZER0--
      @ZER0-- 2 месяца назад +119

      I thought it was called a typhoon.

    • @Masontheimbecile
      @Masontheimbecile 2 месяца назад

      me aswell.

    • @RyanIsHoping
      @RyanIsHoping 2 месяца назад +148

      You're thinking of tornadoes and hurricanes. Cyclones and hurricanes are both water based, tornadoes not. I had the same confusion for a moment!

    • @briebel2684
      @briebel2684 2 месяца назад +66

      Hurricanes and typhoons are both tropical cyclones. The only difference is which side of the international date line the storm was named.

    • @bigquazz3955
      @bigquazz3955 2 месяца назад +95

      @@ELPATO136 And hopefully it stays that way for another few birthdays until you grow up and away from begging.

  • @MarkHawkinsFlute
    @MarkHawkinsFlute 21 день назад +1

    Best explanation of the Coriolis effect I've ever seen. Well done!!!!

  • @Mr.Rendier
    @Mr.Rendier Месяц назад +11

    Your amazing, sience is mostly hard to explain but you make it look easy. Well that is a BIG talent. Respect

  • @KalijahAnderson
    @KalijahAnderson Месяц назад +549

    "Does it work when I pour the water?"
    LMAO. That guy's reaction was priceless and translated perfectly into 'Ah, crap, you noticed what I was doing.'

    • @matthewroy7718
      @matthewroy7718 22 дня назад +8

      I went there with my kids and it looked legit. Thanks Mark for showing the real science.

  • @seanbrockest3888
    @seanbrockest3888 2 месяца назад +470

    0:48 "Not just what, but why" is the mantra of every good educator! Thank You Mark!

    • @-GoGoPlayerars
      @-GoGoPlayerars 2 месяца назад

    • @liliowen2132
      @liliowen2132 2 месяца назад

      Unfortunately I don't understand the rope thing as I have dyscalculia. I can do basic maths but even then I struggle with 7 times tables and above (10 and 11 is easy though). I can't do algebra nor trigonometry. Physics is also an issue due to that, biology is the best.
      In very simple terms, how does the rope thing work?

    • @seanbrockest3888
      @seanbrockest3888 2 месяца назад +1

      ​@@liliowen2132by rope thing, I assume you mean number five, the belt around the Earth. That's actually simple math, the problem is that we imagine it takes a lot more length to do a thing that actually requires very little. You can simulate this for yourself, take a length of rope or string, hold it against a wall with both thumbs. Take a look at how very little you need to move your thumbs towards each other to make a significant bend in the rope.

    • @TheBigLou13
      @TheBigLou13 2 месяца назад

      "because I'm the teacher and I said so", as (unfortunately) many teachers would say.

  • @richiemouritsen8026
    @richiemouritsen8026 26 дней назад +39

    what the heck was jimmy doing there 🤣that was so random: "lemme guess, crunch labs" 🤣bro just spawned in

  • @Lukecarey-sd2ik
    @Lukecarey-sd2ik 17 часов назад

    I sooooo wish CrunchLabs were around when I was young! Massive respect for doing what your doing Mark!

  • @Yenzi769
    @Yenzi769 2 месяца назад +1714

    Mark's videos always make me feel smarter after watching them.

  • @user-wp8rn3qg5f
    @user-wp8rn3qg5f 2 месяца назад +667

    Mark would be a great science teacher really enthusiastic and explains things great

    • @ThisGuyDannyyy
      @ThisGuyDannyyy 2 месяца назад +18

      He is basically Sid the Science Kid in real life

    • @universaltoons
      @universaltoons 2 месяца назад +5

      *Mark Rober inspires me... My parents said if I get 25k foIIowers, they'd buy me a professionaI camera for recording... literally begging you guys...* ❤️🍓

    • @LeahBreHappy
      @LeahBreHappy 2 месяца назад

      @@universaltoonsstop begging and it will come

    • @ThreeSheep69
      @ThreeSheep69 2 месяца назад +1

      Estoy triste porque hoy es mi cumpleanos y no tuve ningun suscriptor.

    • @RobC1999
      @RobC1999 2 месяца назад +3

      Yes, but he reaches more people this way.

  • @AgricultureTechUS
    @AgricultureTechUS 21 день назад

    Fascinating! I could watch those machines all day.

  • @aidandiaz1451
    @aidandiaz1451 20 дней назад

    I felt like I was watching a Bill Nye video in science class! You explain science in a very entertaining way and I love it!

  • @tbluge
    @tbluge 2 месяца назад +649

    Mark is such a treasure for humanity. Imagine how many kids are getting interested in science because of this gem of a human. What a role model!

    • @ItachiUchiha1611
      @ItachiUchiha1611 2 месяца назад +12

      cant agree more , im 28 and he gets me interested in science XD

    • @knowledgeispower817
      @knowledgeispower817 2 месяца назад +2

      Or adults

    • @_moritzperez_
      @_moritzperez_ 2 месяца назад +1

      Only that is speaking so fast that it gives you anxiety in this video 😅

    • @cochanharbison8747
      @cochanharbison8747 2 месяца назад +2

      He’s like a new Vsauce

    • @TTVWarps
      @TTVWarps 2 месяца назад +1

      im 16 and this just helps me with science

  • @PolyCodeOfficial
    @PolyCodeOfficial 2 месяца назад +523

    After a busy, busy week of school, a Mark Rober video is just the thing I need

  • @bernatzmark
    @bernatzmark 8 дней назад

    Thank you Mark! Teaching kids a love of discovery is the most amazing thing in the world!
    -high school math teacher.

  • @tutoring1013
    @tutoring1013 Месяц назад +2

    Thank you for helping to curb ignorance around the globe one experiment at a time!

  • @MangoVid
    @MangoVid 2 месяца назад +711

    When I watch Mark's video, I discover more about science.!!. Love your videos, Mark!!

    • @ThreeSheep69
      @ThreeSheep69 2 месяца назад +1

      Estoy triste porque hoy es mi cumpleanos y no tuve ningun suscriptor..

    • @Platypus_Warrior
      @Platypus_Warrior 2 месяца назад +1

      But the earth is flat, I saw it !

    • @joelch20071
      @joelch20071 2 месяца назад

      @@ThreeSheep69 porque me voy a suscribir si no tienes contenido

    • @Platypus_Warrior
      @Platypus_Warrior 2 месяца назад

      @@ThreeSheep69entonces talvez compleanos solo son algo comercial. Lo que passa cuando tu madre ace parear con un multiplo de 365 dias? Nadie.
      Cresce

    • @horizionactual
      @horizionactual 2 месяца назад

      No . Just no.

  • @Seed
    @Seed 2 месяца назад +1025

    Mark and MrBeast and Mark collab in the same day??

  • @anesennaidoo5279
    @anesennaidoo5279 19 дней назад

    Thank you Mark Rober - I always learn so much from your channel

  • @aceplaysgamesnetwork9566
    @aceplaysgamesnetwork9566 26 дней назад +8

    I swear if schools took this approach to teaching people would probably be a lot smarter. Excellent job of keeping my attention.

  • @Mift_13
    @Mift_13 Месяц назад +382

    What's more exciting is when people explain science in a practical way without causing headaches, greetings from Indonesia ❤

    • @michaelsambhi4331
      @michaelsambhi4331 Месяц назад

      Have you ever wondered what it would be like if you had autism?...

    • @Mift_13
      @Mift_13 Месяц назад

      @@michaelsambhi4331 I don't know and don't let it happen

    • @MrGamelover23
      @MrGamelover23 Месяц назад +2

      ​@@michaelsambhi4331what a random question. It's not great.

    • @CaffeineCaffeine
      @CaffeineCaffeine 28 дней назад

      @@michaelsambhi4331 I don't have to. It's not fun.

    • @jonp3890
      @jonp3890 21 день назад

      Hello, Indonesia. Still beautiful? Still diverse?

  • @thebobloblawshow8832
    @thebobloblawshow8832 2 месяца назад +1268

    Mark single handedly has educated more kids in America in the last year than the entire American educational system combined. 👍👍

    • @user-so2ic2ne5f
      @user-so2ic2ne5f 2 месяца назад +10

      He taught me more

    • @JebbyVR
      @JebbyVR 2 месяца назад +17

      Nah the whole world

    • @vgf_cracked7260
      @vgf_cracked7260 2 месяца назад +33

      This just doesnt make sense

    • @user-mj3iu9nt7e
      @user-mj3iu9nt7e 2 месяца назад +1

      日本にも技術届いてます😊

    • @jhonperloureal923
      @jhonperloureal923 2 месяца назад +31

      Of course this is what happens when you put most of your time into watching yt videos, rather than focusing on your study.

  • @yamini100
    @yamini100 Месяц назад +1

    It's so interesting bro 😊 , esse bhut khuchh sikhane ko mila aur aapne us tourist attraction ka bhanda bhodha kr diya 😂😂, thanks brother

  • @Fun_facts-js5xs
    @Fun_facts-js5xs 25 дней назад +1

    Love this video, thanks for teaching all this stuff ❤

  • @vincetanner4153
    @vincetanner4153 2 месяца назад +460

    Thanks for coming by In-N-Out , I was the gentleman that took a picture with you and your family... I was calling out the numbers😁

    • @swabla240
      @swabla240 2 месяца назад +3

      @@envycollar sowwy :3

    • @Vid_Master
      @Vid_Master 2 месяца назад +1

      ​@@swabla240No he shook his hand!!!! it was cool

    • @mitchtalmadge
      @mitchtalmadge 2 месяца назад +1

      @@swabla240 Why would you make such a pessimistic comment? I've heard Mark loves his fans.

    • @swabla240
      @swabla240 2 месяца назад

      @@mitchtalmadge ye but im probs his favorite fan anyway!!

    • @lihdegu8294
      @lihdegu8294 2 месяца назад +1

      @@swabla240lol you’re a troll

  • @ZuhalDucem
    @ZuhalDucem 2 месяца назад +1454

    I've seen videos of the sink demo and have always wondered why over such a short distance we'd see such a dramatic result. I'm glad to see some evidence backing up my intuition. Thanks Mark! obviously *AWMKToken* is in a great spot

    • @shadowlaw333
      @shadowlaw333 2 месяца назад +8

      Could you imagine how disorienting that would be to walk across the equator

    • @Tiger10002
      @Tiger10002 2 месяца назад +3

      Estoy triste porgue hoy es mi
      cumlpeanos y no tuve ningun
      Suscriptor.

    • @ryzendc
      @ryzendc 2 месяца назад

      @@Tiger10002 que bueno

    • @AgEcon-World
      @AgEcon-World 2 месяца назад

      😂😂😂 me too

    • @Non_Consistent_Potato
      @Non_Consistent_Potato 2 месяца назад +11

      AWMKToken is a bad idea though

  • @oluwasegunsalako5034
    @oluwasegunsalako5034 18 дней назад

    Wow, I learned a lot in 17mins. This is the kind of recommendation I'd love to see

  • @gosteipostei9960
    @gosteipostei9960 Месяц назад +1

    Caraaaa, o truque do balde no final do vídeo foi sensacional! 👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻🤣😂😂
    Tenho 48 anos, e há uns 30 anos uma rede de TV 📺 aqui no Brasil mandou até repórter para mostrar isso, na programação deles de domingo, cara, fiquei admirado com a reportagem na época, e hoje depois de 30 anos só fiquei sabendo da verdade através do seu veículo!👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻🤣🤣🤣🤣🤣🤣

  • @josephovervliet3291
    @josephovervliet3291 2 месяца назад +622

    The Sheer disappointment in his looks after saying "As we all know the earth is... A sphere ಠ_ಠ" Too hilarious. I appreciate your videos Mark

    • @danti2563
      @danti2563 2 месяца назад +24

      Flat earthers: And I took that personally

    • @chaks2432
      @chaks2432 2 месяца назад +26

      @@danti2563 I don't understand why he'd say that. As a former NASA engineer he should obviously know the Earth is shaped like a doughnut

    • @user-zl1vf4me1p
      @user-zl1vf4me1p 2 месяца назад +6

      @@chaks2432 You misspelled "Cube" pal.

    • @bananapeel908
      @bananapeel908 2 месяца назад +4

      @@user-zl1vf4me1p i think you meant "Triangle"

    • @d3w1h7
      @d3w1h7 2 месяца назад +6

      @@bananapeel908velociraptor*

  • @redplaysgames719
    @redplaysgames719 7 дней назад

    I felt so proud of myself when I realized the pi thing...This guy's just an incredible teacher.

  • @alfa_guy09
    @alfa_guy09 10 дней назад +2

    12:18 Having been to that exact place in Quito, I can confirm it flows different ways, and even on the Equator, it flows straight down
    You can also balance an egg on the equator

  • @cefcephatus
    @cefcephatus 2 месяца назад +206

    I love how the bigger your lab gets, the simpler phenomenon you make in the show. And that's the beauty of getting big. You can make things that's already simple even simpler, which is harder than simplifying complicated stuffs.

  • @653-gm2yf
    @653-gm2yf Месяц назад +183

    hello
    I am a second year middle school student in Korea and a student who participates in the sunpla hanging exercise.
    Mark ROBER
    Thank you for always uploading interesting science videos and providing a wealth of knowledge.
    Always upload interesting videos and work hard.

  • @L4ND.SH4RK
    @L4ND.SH4RK 23 дня назад +1

    Thanks, Mark! Wonderful video, as always!!

  • @chatphongxa6384
    @chatphongxa6384 8 дней назад

    I'm from Vietnam and I really enjoy watching your useful videos

  • @scottrichter1858
    @scottrichter1858 2 месяца назад +767

    Came here for one clip, stayed for the whole video.

    • @LR13Red503
      @LR13Red503 2 месяца назад +6

      Same here

    • @ShaharAmin
      @ShaharAmin 2 месяца назад +7

      It’s like mark knows how to grab audience ha

    • @m4teo852
      @m4teo852 2 месяца назад +2

      Came for Mark Rober... Wait

    • @user-gu3cv8xx9v
      @user-gu3cv8xx9v 2 месяца назад +2

      Realllll

    • @anton2563
      @anton2563 2 месяца назад +1

      Same

  • @4RILDIGITAL
    @4RILDIGITAL 2 месяца назад +289

    Impressive dedication and thoroughness with which the myths were debunked. Learning was made even more interesting by not just revealing the answers, but demonstrating how they were acquired.

    • @ThreeSheep69
      @ThreeSheep69 2 месяца назад +1

      Estoy triste porque hoy es mi cumpleanos y no tuve ningun.
      Suscriptor.

    • @Dwoplet
      @Dwoplet 2 месяца назад +2

      Dont Like This

    • @yeetdabeans3883
      @yeetdabeans3883 2 месяца назад +2

      what is this chatgpt comment

    • @Tiger10002
      @Tiger10002 2 месяца назад +1

      Estoy triste porgue hoy es mi
      cumlpeanos y no tuve ningun
      Suscriptor

    • @georgehill3087
      @georgehill3087 2 месяца назад +2

      But he got blowing your own sail part wrong. Blowing your own sail does work, just not efficient. We have reverse thrusters on planes that use that principal. It's not like pulling yourself up by pulling on your hair. The energy is contained within the system. Blowing your own sail has energy escaping the system, just that most are going sideways with a little going backwards, hence the inefficiency.

  • @prabhakarrao4922
    @prabhakarrao4922 28 дней назад +1

    Excellent Video. Really like the content & your presentation style. Thanks

  • @BubuMarimba
    @BubuMarimba 13 дней назад +2

    there is a much better experiment with a leaves blower. It inhales the air from the side and exhales it into the sails, so the boat moves quite nicely.

  • @masic.
    @masic. 2 месяца назад +171

    2:48 that was so funny because I actually got a tour of my brother on the capital and he knew about this and I was able to hear him clearly when he was whispering. It was pretty cool!

  • @Mqrq_69
    @Mqrq_69 2 месяца назад +516

    This guy made me understand the coriolis effect in a minute rather than 2 whole months of my aviation degree

    • @fredrikstadguttatyvesekste773
      @fredrikstadguttatyvesekste773 2 месяца назад +5

      Came here too comment that😂

    • @randykeith1203
      @randykeith1203 2 месяца назад +4

      I've heard of the Coriolis effect before but never understood what it was suppose to mean

    • @rbesfe
      @rbesfe 2 месяца назад

      You must have really awful professors then, or maybe you need to re-evaluate your choice of degree

    • @beta1451
      @beta1451 2 месяца назад

      @@rbesfe well an aviation professor vs a literal ex nasa scientist, who do you think the better teacher will be the guy who teaches about planes and aviation or the guy that literally helped with parts to spacecraft

    • @tappajaav
      @tappajaav 2 месяца назад +1

      @@randykeith1203 Coriolis effect generally refers to how Earth's axial rotation affects various phenomenas around us

  • @joeclark7888
    @joeclark7888 24 дня назад +1

    Thanks for a cheerfully entertaining video with many interesting lessons! 🌞

  • @dbnpoldermans4120
    @dbnpoldermans4120 19 дней назад

    Somebody is going to fall in a ravine with that backpack
    I think more engineering is needed with that backpack. I have several great ideas

  • @MLeoM
    @MLeoM 2 месяца назад +231

    I learned so many new things just by watching this RUclips video. That hasn't happened in a long while.

    • @que5646
      @que5646 2 месяца назад +2

      didn't you go to school? everything he tells, schoolchildren in my country study in the first 5 grades of education (they learn this before the age of 12)

    • @badouplus1304
      @badouplus1304 2 месяца назад +7

      @@que5646 Yeah, sure, I am pretty sure people in your country (like everyone else in the world) would still be tricked by some phenomena mentioned in the video, especially the balloon in the car or the rope around the earth because people do not spend enough time to really think about it. Sometimes, the answer is counter-intuitive and people generally go with their intuitions, even when it is wrong.
      Anyway, there was no need to be obnoxious but hey, maybe you learned to be like that before the age of 12.

    • @MLeoM
      @MLeoM 2 месяца назад +2

      @@que5646 Wish our education system was this interesting, nothing in our curriculum was remotely like this. Some of it like the balloon, I guessed corrected what would happen, but nope our education system is terrible.

    • @tappajaav
      @tappajaav 2 месяца назад

      @@que5646 That's great for you! Too bad not everyone in the world is given equal starting points in education.
      I'm also curious how much of that information you think you can recall, say, 20 years down the road?

  • @ChichotKruka
    @ChichotKruka 2 месяца назад +123

    As a Mechanical engineer my self your videos are bringing joy to my heart and soul. Keep it up buddy! Love your squirrel park.

    • @user-xb1oi5ig7g
      @user-xb1oi5ig7g 2 месяца назад +4

      Господин инженер-механик... А что вы думаете насчёт проблемы паруса и вентилятора? Поплывет лодка? Я просто юрист, но мы, юристы, дотошные и доскональные.

  • @asfandyarfarooqi7924
    @asfandyarfarooqi7924 21 день назад

    You explain it brilliantly. So much that I sometimes doubt that you are American 😅. Kudos

  • @o2blom
    @o2blom 11 дней назад

    That's the best explanation of the Coriolis effect I have ever seen

  • @NeseHasan
    @NeseHasan 2 месяца назад +1287

    I first the puzzler about increasing the radius of a circle by 1 foot years ago on an in-flight magazine. I spent time figuring it out and it has stuck with me ever since. Thanks for demonstrating it to my skeptical kids. how long is *AWMKToken* opened to us?

    • @ragedragon1018
      @ragedragon1018 2 месяца назад

      pls explain....I'm trying to get this trend, last time I didn't know what people were saying was the 50,000 reasons of Verbalase...did Mark endorce AWMKToken or something@@crack2102

    • @Tiger10002
      @Tiger10002 2 месяца назад +1

      Estoy triste porgue hoy es mi
      cumlpeanos y no tuve ningun
      Suscriptor.

    • @Non_Consistent_Potato
      @Non_Consistent_Potato 2 месяца назад +6

      Who are you asking that last question to?

    • @randomsomeguy156
      @randomsomeguy156 2 месяца назад +14

      Bot

    • @-M05
      @-M05 2 месяца назад +11

      I got a brain tumor trying to read this

  • @sighmon5640
    @sighmon5640 2 месяца назад +243

    7:20
    only, if you change the shape of the sail a little bit, it suddenly does work. because then it funnels all that air backwards around the fan.

    • @splsgh
      @splsgh 2 месяца назад +8

      target thrust reverse?

    • @chaoswraith
      @chaoswraith 2 месяца назад +33

      Still better pointing it backwards since you'll inevitably lose some energy to friction as it redirects 180

    • @stefan514
      @stefan514 2 месяца назад +35

      ​@@chaoswraiththat's not the point. It's not about whether it's better or not, it's about if it works at all and this was misrepresented in the example with the umbrella.
      This would totally work even without and electric skateboard if you do it correctly

    • @EliasKaydanius
      @EliasKaydanius 2 месяца назад +6

      @@stefan514 i feel like the testing should have been focused on whether the "thrust reverser" in the form of the umbrella would actually be enough to overcome the friction to actually get the whole thing to move.

    • @Tyrian3k
      @Tyrian3k 2 месяца назад +5

      Well, yes, just like a simple U-shaped pipe would make it work.

  • @PriTeshla
    @PriTeshla 12 дней назад

    Ah dang it, you got me again! Taught me stuff while I was distracted!

  • @alanb287
    @alanb287 5 дней назад

    This will be interesting, I've always wondered about this

  • @agneseozolina1380
    @agneseozolina1380 2 месяца назад +172

    Im 13(14 this year) and never been interested in physics, but a few years ago when i found Mark's yt channel i remember when he was making the squirrel series and now my dream job is to be an engineer! Im bummed that i cant get hi monthly kits, bc i live in a small country called Latvia, which is completely on the other side of the world, so shipping would cost a lot. i just think that Mark is an amazing human being and his videos are one of the few actually useful and educating videos on youtube! 4 years ago i didn't know anything about physics, but now my main monthly event that i can't wait for is watching mark's new video!

    • @conorgalvin4289
      @conorgalvin4289 2 месяца назад

      I found another science based channel as well! It's called kursgesagt.

    • @blurry2246
      @blurry2246 2 месяца назад +3

      noob

    • @ashlyn_1424
      @ashlyn_1424 2 месяца назад +4

      That is so cool! You will be a great engineer some day!

    • @agneseozolina1380
      @agneseozolina1380 2 месяца назад

      okay, im gonna go cry to sleep now and tell my mommy abt you😢@@blurry2246

    • @TheVilivan
      @TheVilivan 28 дней назад +1

      Nice! Keep learning, stay curious and resilient!

  • @fireball9567
    @fireball9567 2 месяца назад +153

    Mark Rober is really just out here being the new Science Guy. Getting a whole bunch of people interested and passionate about science. What a legend.

    • @autistacat
      @autistacat 2 месяца назад +5

      new??? mark rober has been here almost since the beginning of youtube

    • @PeteVanFleet
      @PeteVanFleet 2 месяца назад

      FYI - New "Science Guy" as in Bill Nuy, not new to the Internet@@autistacat

    • @gabrielperez1199
      @gabrielperez1199 2 месяца назад +4

      ​@sarzidev9487 Bill Nye the science guy is the science guy before RUclips even launched

    • @dr.wheezy3787
      @dr.wheezy3787 2 месяца назад +3

      @@gabrielperez1199BILL NYE THE SCIENCE GUY! BIIIILLLLL NYYYYEEEEE THE SCIENCE GUYYY! BILL BILL BILL BILL BILL BILL, BILL NYE THE SCIENCE GUY! He will FOREVER be the ORIGINAL science guy! I don’t think I’ll ever forget that legendary theme song.

    • @dr.wheezy3787
      @dr.wheezy3787 2 месяца назад +2

      Not to take away from how awesome and legendary Mark Rober is, he just wasn’t the first.

  • @ethandusharm3610
    @ethandusharm3610 15 дней назад

    Thank you mark. I learned something today. Not sure how I made it 34 years without knowing hurricanes are northern hemisphere and cyclones are southern hemisphere

  • @discopotato675
    @discopotato675 12 дней назад

    I actually got to be at the Equator in Quito, Ecuador before going to the Galapagos. We frequently crossed back and forth over the equator into the northern and southern hemispheres

  • @squidwardo7074
    @squidwardo7074 2 месяца назад +2654

    Am I the only one who can't stand the speed and fast edits in this video (and your recent ones)? Much prefer the older style of editing

    • @Irfan_1
      @Irfan_1 2 месяца назад +442

      That's true. it's the new RUclips style popularised by Mr Beast

    • @mediaaccount8390
      @mediaaccount8390 2 месяца назад +355

      it feels like he's yelling at me the whole time (and it's not pleasant )

    • @dingbaaat5569
      @dingbaaat5569 2 месяца назад +99

      unfortunately thats how youtube works these days

    • @H0LMES7777
      @H0LMES7777 2 месяца назад +43

      yes thats really true, it‘s the nwe style inspired by Mr, Beast

    • @xCyOfficial
      @xCyOfficial 2 месяца назад +64

      Attention spans lessen and Stimulation increases 🫨

  • @TimeBucks
    @TimeBucks 2 месяца назад +29

    This is the best video yet!

  • @TawolrenArts
    @TawolrenArts 11 дней назад +1

    Hello! This is the first video that I watch from this channel and I loved the content. I normally prefer wathing videos or movies with original audio. But as a Turk and a Dubbing Enthusiast, I would like to say that Turkish Dubbing in this video is perfect! Thanks to all who worked on this.

  • @Ajreyes-nq1di
    @Ajreyes-nq1di Месяц назад +1

    thanks for using ecuador i’m ecuadorian and it makes me proud such a great person is visiting my country

  • @MrFoxStories
    @MrFoxStories 2 месяца назад +440

    Marks videos inspire so many kids and makes learning science so much fun! Love the videos!

    • @user-ee1nk5ko7l
      @user-ee1nk5ko7l 2 месяца назад

      He is such an awesome influence

    • @propelet
      @propelet 2 месяца назад +1

      WOW

    • @kwimms
      @kwimms 2 месяца назад

      Science is a religion for goons. Leave those kids alone!

    • @vishnub5695
      @vishnub5695 2 месяца назад +1

      😂😂​@@kwimms

    • @abdrzakabdrzak3415
      @abdrzakabdrzak3415 2 месяца назад

      ❤❤❤❤❤

  • @masonhoughton7885
    @masonhoughton7885 Месяц назад +91

    Blowing your own sail, while wildly inefficient, does actually work with a traditional CURVED sail. The curve captures the air from the fan and redirects some of it backwards, which provides a small amount of net thrust in the opposite direction of the fan. Love the channel, but I would really appreciate Mark revisiting and clarifying this

    • @erwtgfan3877
      @erwtgfan3877 Месяц назад +9

      He should have mentioned the reverse thrust on a jet engine

    • @ATuinhek
      @ATuinhek Месяц назад +3

      Yeah exactly, with thrust reversers being a nice example.

    • @MrGamelover23
      @MrGamelover23 Месяц назад +2

      He literally did it on a real boat with curved sails and nothing happened?

    • @cuddlestsq2730
      @cuddlestsq2730 Месяц назад +2

      @@MrGamelover23Might be because of the positioning of the fan and its size. The fan was much lower than the sail, so the air would be redirected more upward, and perhaps the since the fan was close in size to the sail the air flow from the fan would disrupt the redirected air from the sail.

    • @jimmychin8313
      @jimmychin8313 Месяц назад

      does that mean that the leafblower & umbrella might work without the motorised skateboard?@@cuddlestsq2730

  • @jumblyman
    @jumblyman 20 дней назад

    brilliant explanations as always

  • @musicsomething4641
    @musicsomething4641 14 дней назад

    I started studying about an ellipse after watching this video and i have to say, an ellipse is now my favourite geometric shape too

  • @ErdemErgun-qy2od
    @ErdemErgun-qy2od 2 месяца назад +1080

    It is still fun to watch the video even if you know the stuff. Mark shows everything practically which is fun to watch bring the heat with *AWMKToken* we gonna have a huge year btw

  • @michaelelder3945
    @michaelelder3945 2 месяца назад +82

    Loved the video. The physics stuff was cool, but what I really enjoyed was your enthusiasm. Love the energy.

  • @Mr_Ilhan
    @Mr_Ilhan 14 дней назад +1

    4:51 Graze the roof. It is one of my favorite music

  • @tuwenbo
    @tuwenbo 11 дней назад

    I'm Chinese, your videos are very wonderful and meaningful! Thank you!

  • @GokayAli
    @GokayAli 2 месяца назад +1053

    Love how you did several things in one video just some more detail figured *AWMKToken* is worth to know now

  • @KOT_ATOC
    @KOT_ATOC 2 месяца назад +257

    I am your fan from Russia, thank you for doing the voiceover in my language! I love your channel, because that's how I learn a lot of new things and study science ❤😇

    • @zabooka
      @zabooka 2 месяца назад +2

      Fax

    • @benkmarchant
      @benkmarchant 2 месяца назад +22

      How did you avoid the draft

    • @lucasmassive
      @lucasmassive 2 месяца назад +19

      bro is gathering American intelligence

    • @CitizenZOV
      @CitizenZOV 2 месяца назад +3

      @@benkmarchant there is no draft

    • @phen0m54
      @phen0m54 2 месяца назад +19

      slava ukraini!

  • @EmmanuelBethune
    @EmmanuelBethune 27 дней назад

    The efficiency with which he paired the socks in the drawer was quite admirable.

  • @kaseycrooks5080
    @kaseycrooks5080 13 дней назад

    Wish i had a teacher like you back in highscgool i would of went to class much more. Lol😂

  • @LukeTube007
    @LukeTube007 Месяц назад +62

    I love this guy. Mark Rober gives us so much fantastic energy from his presentations, yeah actually gets me Jazzed like a little kid! You earned a dedicated viewer Mark!!!

  • @DVnc_
    @DVnc_ 2 месяца назад +35

    8:17 Mark trying so hard not to blush😂

  • @MrSamFilms
    @MrSamFilms 7 часов назад

    learning more on youtube than I have ever done at school lol... that says something

  • @ProfessorLyle
    @ProfessorLyle Месяц назад

    So glad you exist, Mark.

  • @en5788
    @en5788 2 месяца назад +99

    This is the best video yet! Getting back to basics. Making science interesting again!

  • @teddytaylor3373
    @teddytaylor3373 2 месяца назад +133

    As an avid sailor, I beleive you could get some foreward thrust if you positioned the fan at the side of the boat and rotated it 90 degrees so it is blowing from the outside of the boat to the inside of it. You just have to have the sail trimmed at a 45º angle (a reach). Though, Mark's point still stands that this system is not efficient and has a lot of energy loss compared to a simple motor in the water. 1: the wind's angle means that a lot of the energy (half maybe?) is pushing laterally (it is a staple of sailing when you are sailing to put some weight to windward, especially on upwind legs). 2: the electrical energy used in a fan would be much better utilized in [a.] a better fluid than air like water (a motor as Mark says) [b.] a pushing the boat directly without a sail. There is so much physics behind sailing and I think it would be awesome if Mark did more experiments/demonstrations on it.

    • @jamescarver9952
      @jamescarver9952 2 месяца назад +8

      Yes, that arrangement would turn it into an extremely inefficient reaction drive.

    • @Wenas2005
      @Wenas2005 2 месяца назад

      @@jamescarver9952 berbagiwenas @rekaputri

    • @FarmerDrew
      @FarmerDrew 2 месяца назад +1

      The Forever Tack

    • @photodan24
      @photodan24 2 месяца назад +8

      I do wish people would stop promoting the fallacy that sailboats move because sails catch the wind, from aft, like a parachute. Even spinnakers don't operate like that in most regimes. Maybe Mark should explain how sails actually work and how closely related they are to airplane wings.

    • @madebydimiakagreekmachine5822
      @madebydimiakagreekmachine5822 2 месяца назад

      @@photodan24lol then how do they work ?

  • @Birb56
    @Birb56 Месяц назад

    I once took a photo half in the eastern hemisphere, half in the western hemisphere. Half the photo was blurry, half of it was centered. I thought that was very cool!

  • @mrorganic13
    @mrorganic13 Месяц назад

    @7:00 I hope you go over different type of sails, I wanna see what happens if you use a dome sail instead of a bent square sail

  • @EraX52
    @EraX52 Месяц назад +9

    Mark makes science much more interesting and something that catches your attention. I also love that mark puts PVZ music with this, so relaxing and makes it much funner to learn.

  • @AdamSelvig
    @AdamSelvig 2 месяца назад +154

    Dude you just ruined flat earth conspiracy theories for the next thousands of years

    • @lisajones1438
      @lisajones1438 2 месяца назад +11

      I mean, there are SO many ways to debunk flat earth. Still oddly oriented moon is one way. ... If earth is flat though... I guess flat earthers could say the moon is rolling around ... So ... Idk flat earth breaks so much physics

    • @AdamSelvig
      @AdamSelvig 2 месяца назад +3

      @@lisajones1438 exactly my point mark ruined flat earth conspiracy theories for the next millennia

    • @op-pv2nn
      @op-pv2nn 2 месяца назад +2

      Water is level, bruh.

    • @lawrencewalston2272
      @lawrencewalston2272 2 месяца назад +2

      ​@@lisajones1438 I would challenge flat-earthers to get on a plane and set a one-way, equatorial course over the horizon, keeping true for however long it took to circumnavigate the globe. When they end up where they began, I'd love to see them bs their way out of a rational explanation.

    • @RaffBuilding
      @RaffBuilding 2 месяца назад +2

      Does everyone really think Mark's amazing science class changed the mind of flat-earthers? Wishful thinking, I'm afraid.

  • @nissawolf4538
    @nissawolf4538 Месяц назад

    Oh my goodness I actually went to that place in Ecuador on a school trip just last summer. 😂

  • @FloeAnimations
    @FloeAnimations Месяц назад

    Thanks for the science homework 👍

  • @appefjant1961
    @appefjant1961 2 месяца назад +102

    dude i love mark rober easily the best youtube chanel out there. Always new highly interresting theories, knowledge and experiments.
    Thank you!

    • @Wenas2005
      @Wenas2005 2 месяца назад

      Cinta kita hidup wenas @rekaputri

  • @FerroVisuals
    @FerroVisuals 2 месяца назад +20

    I watch you all the time... but this videos makes me appreciate how well you explain complicated subjects and make them easy to understand.

  • @whyareyouexisting899
    @whyareyouexisting899 5 дней назад

    Another thing related to relative density is
    BiConvex(primarily converging) lenses when put in medium denser than the lens itself, diverges light. And biconcave lenses converge light in denser mediums than lens

  • @FlickSeven
    @FlickSeven Месяц назад +2

    The way he said the earth is a sphere sounds like the most intentional thing ever lol

  • @therelaxedguy542
    @therelaxedguy542 2 месяца назад +80

    Thank you for coming to Ecuador! Wish I would’ve come across you and met you one of the days of your stay.

  • @noname-pu2jl
    @noname-pu2jl 2 месяца назад +74

    The demonstrating practical experiences makes the video pure gold.❤

    • @Wenas2005
      @Wenas2005 Месяц назад

      Indonesiaku wenas @rekaputri

    • @showpavelraevsky4971
      @showpavelraevsky4971 Месяц назад +1

      🙂Я просто хочу получать удовольствие от жизни! Я не хочу хамить, скандалить и что-то кому-то доказывать, не хочу тратить время на общение с теми, кто мне неприятен, с людьми, которые меня не понимают, и пытаться достучаться до них. Не хочу пытаться вмещать свои мысли в чужую голову. Мне некогда! Я хочу жить своим настоящим. Я просто хочу ЖИТЬ! Радоваться каждому моменту, каждой улыбке прохожего, каждому дню, в независимости от того, солнечный он или дождливый. И очень не хочется разменивать эту потрясающую жизнь на пустоту, мелочи и бессмыслицу….

    • @Wenas2005
      @Wenas2005 Месяц назад

      @@showpavelraevsky4971 Indonesiaku wenas @rekaputri

  • @victoryusa2day
    @victoryusa2day Месяц назад

    Awesome video! Please debunk the Mystery Spot!.next!

  • @download6108
    @download6108 27 дней назад +1

    MANUAL DO MUNDO da gringa kkkk
    Otimo conteudo, dinamico e explicativo!
    Estranho como um canal gigantesco eu nunca tinha ouvido falar.. e do nada essa recomendação do youtube.

  • @u3pvip
    @u3pvip Месяц назад +29

    Wow. I actually watched the whole thing and I have really short attention span. Love how you explained things and demonstrated in a smaller scale/perspective.

    • @SosaHITM
      @SosaHITM Месяц назад

      The Mrbeast effect