World's LARGEST JELLO POOL- Can you swim in Jello?

  • Published on May 16, 2019
  • I've wanted to make this video waaay before I ever knew how to make videos. Go to and use code MARKROBER to get 75% off a 3 year plan and an extra month for free.
    Thanks to Devin Super Tramp for filming all the coolest parts of this video. Go subscribe to his channel and tell him I sent you!

    High Speed camera courtesy of They rent high speed cameras at killer prices. Hit them up.
    0:03 - Arrow - Andrew Applepie
    0:31 - Cereal Killa - Blue Wednesday
    2:14 - Run (Part 2) - Andrew Applepie
    3:58 - Arrow - Andrew Applepie
    4:39 - Sappheiros - Falling (ft eSoreni)
    5:22 - Pokemon in NYC ft Missy - Andrew Applepie
    7:24 - New Shoes - Blue Wednesday
    8:02 - Inspiring Cinematic Trailer in
    8:21 - Arrow - Andrew Applepie
    8:36 - Pata Pata - Matt Chene-
    10:08 - Q - Blue Wednesday
    11:09 - Too Happy to be cool by Notebreak

    Summary: Since I was a little kid I always wondered what it would be like to swim in a pool of Jello. Turns out it is really difficult. We heated up the Gelatin in 55 gallon drums and then used gravity to put that jello into the pool.

    They are soft-

    I make videos like this once a month all year long while supplies last:
  • Science & TechnologyScience & Technology

Comments • 27 536

  • Mark Rober
    Mark Rober  Month ago +17254

    My bucket list is now one item shorter. This was a brutal amount of work but a worthy engineering challenge. MASSIVE thanks to my buddy Devin Super Tramp for filming this so don't get used to this high quality from me. He is a living legend.

  • Josefina Diamant
    Josefina Diamant 17 hours ago


  • trainman1967
    trainman1967 17 hours ago

    Does your brother live in Spanish fork?

  • Fast Raw Reviews
    Fast Raw Reviews 17 hours ago


  • Estação Perus
    Estação Perus 17 hours ago

    Legenda BR POR FAVOR

  • Matheus Fortunato
    Matheus Fortunato 17 hours ago


  • Kris
    Kris 18 hours ago

    awesome how many adults wish they could do this!

  • Alexa Ferraioli
    Alexa Ferraioli 19 hours ago

    When he brought up a the office reference I was so exited

  • Noah noah
    Noah noah 19 hours ago

    Can you make plasma rocket launcher plz?

  • Milano Moses
    Milano Moses 19 hours ago

    Awesome 🔥 @Millionarechronicles

  • Sofia.x_27
    Sofia.x_27 20 hours ago

    Wann it toooo

  • Kiana Fortes
    Kiana Fortes 20 hours ago

    I don't have nothing to say. It is just mind blowing boom! Two thumbs up for ur creativity!

    JUAN DAVID VEGA ROJAS 21 hour ago +1

    This is so satisfactory ❤️😏

  • nick Johnson
    nick Johnson 21 hour ago

    Crap!.. A swear

  • Shakida Dennis
    Shakida Dennis 21 hour ago

    OMG cloudy with a Chance of meatballs movie for real!!!

  • Avoid Krusader
    Avoid Krusader 21 hour ago

    If the sun is in outer space how do we get light on earth but not in space

  • PG and TOYS
    PG and TOYS 21 hour ago

    Cool 😁👍👍👍

  • Unkxwn_trx
    Unkxwn_trx 21 hour ago

    So uhmm how you going to get it back to water mark?

  • wilbert games channel
    wilbert games channel 22 hours ago


  • Nikki's World
    Nikki's World 22 hours ago

    I love this RU-clip channel because it is science and learning yet it's really fun

  • WhatShould INameMyAccount??

    when i saw the text in the thumbnail ithought you were spanish lmao

  • Madalin Luca
    Madalin Luca 22 hours ago +1

    you made at least 10k euro from this video.. So worth it..

  • Xd Fortnite
    Xd Fortnite 22 hours ago

    Ur vids are trash jk

  • hameedullah jasat
    hameedullah jasat 22 hours ago

    Where does your brother live's simply amazing

  • LK.Dragon Dragon
    LK.Dragon Dragon 23 hours ago

    Worth every minute of this vid 👌

  • mccullough87
    mccullough87 23 hours ago


  • Nov Raps
    Nov Raps 23 hours ago +1

    Do an ooblec pool next

  • GG FF IAIA DD Club
    GG FF IAIA DD Club 23 hours ago


  • Extr3me
    Extr3me Day ago +3

    *”This will make even Phineas and Ferb jealous”*
    I’m a kid and I watched P+F last night. This honestly makes me laugh

  • Mr Potato
    Mr Potato Day ago +1

    Of course little kids had to ruin it

  • NoCandyYesWifi
    NoCandyYesWifi Day ago

    My friend is going to vidcon and is excited to meet you

  • Hybrid Tube
    Hybrid Tube Day ago


  • _Shi0ki Trvp 獸

    I just realized i was smiling the whole vid lmao

  • g g
    g g Day ago


  • Barbie Kwatra
    Barbie Kwatra Day ago

    These kids are damn lucky mannnnn

  • Sandy Rivera
    Sandy Rivera Day ago

    My question is how did they get that out of the pool? Lol

  • Sakamotu salt
    Sakamotu salt Day ago


  • Zakary Gurney
    Zakary Gurney Day ago

    My grandma is your neighbor her last name is stephenson

  • Ace
    Ace Day ago

    I remember when mark rober went to my school for an assembly about him and his son cam, That made me cry and sense I already loved his videos that was the best experience of my life and I was in the office when you first came in and got greeted by the principle and I said Hi and he said wassup, Omg I was so happy... Thanks for coming to my school :)

  • Panda Mix
    Panda Mix Day ago

    Now this is good educational content not a character from the bugs life doing makeup😂

  • Minko Rangelov
    Minko Rangelov Day ago

    Pls kill me

  • xJvniorz _
    xJvniorz _ Day ago


  • Alfian Khadafi
    Alfian Khadafi Day ago

    I'm totally scared to the pool, because it is looks like freezing blood

  • joseph sebastian

    I just graduated in Mechanical Engineering and now, i wanna make a youtube channel. Lol. Damn! you are cool,man!

  • Tariq Mohd
    Tariq Mohd Day ago

    Cool ...that is really fun

  • Eliezer escobedo

    Why with the t-rex

  • Cynthia Rivera
    Cynthia Rivera Day ago


  • Night star moon
    Night star moon Day ago +1

    9:56 I literally died of laughter!!! XD

  • bassbeatstrap
    bassbeatstrap Day ago


  • gacha_wolfie plazy

    Wow so coll

  • Theda HD
    Theda HD Day ago +1

    Can I visit you?

  • Duc Hai Pham
    Duc Hai Pham Day ago +1

    I feel jelous

  • Darius Fetescu
    Darius Fetescu Day ago

    Contact mr beast for 24 hours videos

  • Rich B
    Rich B Day ago

    whats the story behind the dinosaur 9:50, why are you shaking from what it looks like, frustration?

  • DeadShot Gaming
    DeadShot Gaming Day ago +1

    I want that

  • The Real Animator Factory

    I just want to eat it

  • Ali ASERE
    Ali ASERE Day ago

    حرام هاذي نعمه

  • NikoGans
    NikoGans Day ago

    Those child like swim in blood

  • Arjun Gotan
    Arjun Gotan Day ago

    Only if I was his relative

  • 悪女のメアリー


  • Thats MyUsername

    Omg i wanna Go in it!!!!!!!

  • Mista Husky
    Mista Husky Day ago

    Hi sir Mark, can you make a explanation about the shape of our earth is it Flat as a disc or a globe?.. Please! Im begging you to make this kind of video about the true shape.

  • Aizad Haikal
    Aizad Haikal Day ago +1

    Your lucky enough it's not rainning

  • компот вик грэк

    Cool invented the beautiful👍👍

  • Gïtu Gacha
    Gïtu Gacha Day ago

    Imagine living next to this guy.

  • lil Put
    lil Put Day ago +1

    Phineas and ferb has done this first!

  • Tegan the number one cookie fan

    It made me smile seeing how much fun the kids were having 😊

  • Justine Chang Lee Hau

    Mr. Beast is that you?

  • CR_ Dereck
    CR_ Dereck Day ago

    Soy el único que no entendio ni verga?

  • Bernadette Garchitorena

    Will you be my uncle 😂❤️

  • Lyrical Unicorn
    Lyrical Unicorn Day ago

    Mark Rober: Choose between swimming and eating
    The kids: Yes!
    P.S. I know the gelatin's already inedible 😆

  • Nelcy Cultivo
    Nelcy Cultivo Day ago

    I have a question tho can you walk on it?

  • OpTiC_PvP _
    OpTiC_PvP _ Day ago +1

    Subscribe to him or die tmr

  • Poproxer 04
    Poproxer 04 Day ago

    Thank you so much for this video. You guys didn't half *** it. You followed through. You guys are officially the best.
    This is also te first video of yours that i have ever seen.

  • Cool Buds
    Cool Buds Day ago

    Omg one of the clips is unspeakable 😂😂😂😂

  • CalicifierWolf
    CalicifierWolf Day ago

    Is that Utah? Looks like the mountain that was on fire

  • Brother Brother
    Brother Brother Day ago

    The kids ruened it

  • Mammoph
    Mammoph Day ago

    I want to eat that pool

  • jass brown
    jass brown Day ago

    Was this in Utah because that's were I live

  • Jacey The Cat
    Jacey The Cat Day ago

    Coolest uncle ever!!!

  • Emma Bradbury
    Emma Bradbury Day ago

    You should do this with slime!!!

  • Victoria Caddy
    Victoria Caddy Day ago

    Is there a way for us to get in touch I want to be a mechanical engineer

  • Youtube Fan
    Youtube Fan Day ago

    Why did Neil Armstrong go through the effort to step on the moon? I don't know... Maybe it was his job? No one else could have done it. Right? 😕

  • Ashton Simmons
    Ashton Simmons Day ago

    You did it for RU-clip money, thanks though

  • Mario Esquivel
    Mario Esquivel Day ago +1

    That's cool 😎 thanks for the video


    I honestly thought that it would be like oblec
    That thing that turns into a solid like when it get struck by something heavy but would Turn into a Liquid type

  • gilbert manuel
    gilbert manuel Day ago

    what is the title of the background song

  • Slime Pro
    Slime Pro Day ago

    It is so messy

  • Slime Pro
    Slime Pro Day ago

    That is so frikin awesome

  • von der Bank Anna
    von der Bank Anna Day ago +1

    As an aerospace engineering student: DAMN SON

  • Bruna PAW Patrol
    Bruna PAW Patrol Day ago +1

    rsrs achei que era o Rezendeevil

  • 최수연
    최수연 Day ago

    존나 과학적이야.... 개멋있어

  • Lonely Mehh
    Lonely Mehh Day ago +5

    My momma always said...

    Don’t play with your food.

  • Isabella Rodriguez

    My Science teacher showed me this in my class and I am rewatching it right now

  • Hunter Bean
    Hunter Bean Day ago


  • Adam Battistel
    Adam Battistel Day ago

    He should’ve tried goggles

  • Rohit Huda
    Rohit Huda Day ago

    next vid pls

  • Princess Is Cuty

    this should go trending

  • Laidan 22
    Laidan 22 Day ago

    That’s like 200iq at its finest and probably one of the best vids ever, also the ad at the end was funny👍