Liquid Sand Hot Tub- Fluidized air bed

I don't like sand. It's coarse, and rough, and irritating, and it gets everywhere.
Here is the build info:
Here is a video by the King of Random with more details on making one for yourself:
0:17- I've got no info on this song. Sorry.
1:40- Cereal Killa- Blue Wednesday-
2:54- Danijel Zambo- Devil in Disguise
3:25- Keep on Trying- Andrew Applepie-
4:50- Berlin- Andrew Applepie-
6:20- Cereal Killa- Blue Wednesday-
7:20- Pata Pata- Matt Cherne-
8:45- Q- Blue Wednesday-
9:37- Too Happy to be cool by Notebreak-

Summary: Fluidized beds are used in industry for various reasons. They also happen to be really cool to play with and swim in. I made a liquid sand hot tub by adding air in just the right way.

By popular demand I have shirts now! I picked the high quality shirts and make $0 on all items which is why they are priced handsomely.

I make videos like this once a month all year long while supplies last:
INSTAGRAM: markrober
TWITTER: #!/MarkRober


  1. ElectroDuo07

    ElectroDuo07Prije 6 sati

    So what happens when the gravity and the buoyancy are the same does it just float? Not going up or down?

  2. Teddy Fandango

    Teddy FandangoPrije 6 sati

    rip pigeon

  3. Cameron Hawkins

    Cameron HawkinsPrije 6 sati

    uhhh, uhhhhh,this makes my mind blank but go insain at the same time!!!

  4. Derek Zhu

    Derek ZhuPrije 7 sati

    RAInBOWSSSSS <a href="#" class="seekto" data-time="95">1:35</a>

  5. Árpád Dombi

    Árpád DombiPrije 7 sati

    this is awsome

  6. StudioSmith

    StudioSmithPrije 7 sati

    This is a death trap when you think about it....

  7. Abhi Sh

    Abhi ShPrije 7 sati

    These guys have coolest uncle.

  8. Amy A

    Amy APrije 7 sati

    I hate you

  9. lilj 45

    lilj 45Prije 9 sati

    Seeing the bird just sink under the grain in the silo is funny yet also terrifyingly scary

  10. Ronan Dublado

    Ronan DubladoPrije 9 sati

    WHAT HAPPEND TO HE BIRD <a href="#" class="seekto" data-time="56">0:56</a>

  11. TheCrocodilian

    TheCrocodilianPrije 10 sati

    The Dislikes are from Anakin Skywalker and his 22k+ Accounts

  12. RedStarRising

    RedStarRisingPrije 10 sati

    Elon Musk and Mark Rober need to make a video together

  13. holocatz

    holocatzPrije 10 sati

    Imagine all the sand in your buttcheeks though

  14. Carlos Juarez

    Carlos JuarezPrije 10 sati

    Goggles should have been warn. Safety first

  15. piplup29

    piplup29Prije 10 sati

    Pirates used this to hide their treasureXD

  16. Skye Lilith

    Skye LilithPrije 10 sati

    Anakin would hate this

  17. SomeOrdinaryGamers s left nut

    SomeOrdinaryGamers s left nutPrije 10 sati

    Everybody gangsta till neigbhros kids snorkle in that and mark stops it

  18. Isaiah St

    Isaiah StPrije 11 sati

    Tbh ive seen this many time but just realised its swimming for people that hate water

  19. Emaad Ally

    Emaad AllyPrije 11 sati

    I’ve never seen sand as pure as he has🤗

  20. AIotTrotFox

    AIotTrotFoxPrije 11 sati

    So its dry water?

  21. Isaiah

    IsaiahPrije 12 sati

    Fun way to kill someone

  22. Eva playz Roblox

    Eva playz RobloxPrije 12 sati

    That is so cool

  23. Dorsal

    DorsalPrije 12 sati

    you could easily kill someone with this. You could convince them to swim in it, and as soon as they start to go upside down or horizontal, to turn off the air, and there's nothing they can do... Did Mark Rober think of the implications of showing this to 58 million people?

  24. Rameel Chirico

    Rameel ChiricoPrije 12 sati

    This looks like pancake batter


    NO RASISMPrije 12 sati

    For prankster, this is an idea to prank people in beach to make them stuck in the sand in matter of second.

  26. 『Rijuu Rider』

    『Rijuu Rider』Prije 12 sati

    Mark’s Nephews: We have an awesome uncle UvU Me: I only know one and he caused my nice grandpa to be disabled and stole all his money before I got to meet him :(

  27. candace lewis

    candace lewisPrije 13 sati

    <a href="#" class="seekto" data-time="486">8:06</a> you can see all the Sand fall out of his butt


    IIIALEXIIIPrije 13 sati

    It like a pool but if you pee we will all know

  29. Watr Dragn

    Watr DragnPrije 13 sati

    Like a bowling ball and a regular ball in water

  30. Lauren sykes

    Lauren sykesPrije 13 sati

    Wow it is so water like that it made a rainbow

  31. Ellie_ Playz

    Ellie_ PlayzPrije 14 sati

    I wish I had u as an uncle, you seem like so much fun.

  32. Connor Lundeen

    Connor LundeenPrije 14 sati

    next he's gonna find a way to granulate liquid water so we can finally have f(beach)^-1

  33. Galaxycat Playz

    Galaxycat PlayzPrije 14 sati


  34. Aden Garcia

    Aden GarciaPrije 14 sati

    Y’all seen him throw that child in there

  35. Kenrick Downer

    Kenrick DownerPrije 14 sati


  36. Blue_rouge2

    Blue_rouge2Prije 14 sati

    That bird just died

  37. Greenville State FiveM

    Greenville State FiveMPrije 15 sati

    He has the reality stone 🍎

  38. ZackSuzhi - Gacha

    ZackSuzhi - GachaPrije 15 sati

    *dry water.*

  39. Hayden Spencer

    Hayden SpencerPrije 15 sati

    So um can I adopt you as my uncle? Plz?

  40. Charley Hibschweiler

    Charley HibschweilerPrije 16 sati

    Anakin Skywalker made 22K accounts to dislike this video

  41. Dusty Glover

    Dusty GloverPrije 16 sati

    Coolest uncle ever.

  42. Caleb

    CalebPrije 16 sati

    He prob got sand in places he still ain’t got out lol

  43. Daniel Banuelos

    Daniel BanuelosPrije 16 sati

    New fear: drowning in sand

  44. Exile 87

    Exile 87Prije 16 sati

    My first question: can you drown in sand

  45. Alex Barwick

    Alex BarwickPrije 16 sati

    do ya mind if i put clip of your video into a satisfying video compilation?

  46. George ST2007

    George ST2007Prije 16 sati

    Well I’m done now the science was the best part ‘-‘

  47. 3oruh

    3oruhPrije 17 sati

    I'm surprised I've never skipped the Science part of Marks videos I'm usually not the one to want to listen to science... I guess that's why I got a C+ in chemistry

  48. Ivan Mota

    Ivan MotaPrije 17 sati

    Imagine if he got it and it stopped and he was stuck at rge bottom

  49. Eli Erichsen

    Eli ErichsenPrije 17 sati

    The sand really made a rainbow 🌈

  50. Tomo Shen

    Tomo ShenPrije 17 sati

    How do you make sure sand doesn't get into places like ears, nose, mouth, etc? It looks amazing liquidised, but isn't this supposed to be the reason sandstorms can be so deadly?

  51. Tomo Shen

    Tomo ShenPrije 17 sati

    Other than that I mean I love these videos

  52. Tiffany Liu

    Tiffany LiuPrije 17 sati

    <a href="#" class="seekto" data-time="96">1:36</a> 🌈 rainbow

  53. Chris Hanson

    Chris HansonPrije 17 sati


  54. Sky Ariel

    Sky ArielPrije 17 sati

    Thats satisfying

  55. Speed Stacker 1234 GUS the bus

    Speed Stacker 1234 GUS the busPrije 18 sati

    Anyone else see the 🌈

  56. Thecubinggamer 67546

    Thecubinggamer 67546Prije 18 sati

    <a href="#" class="seekto" data-time="94">1:34</a> did anyone noticed a rainbow

  57. Pepe Amoerl

    Pepe AmoerlPrije 18 sati


  58. Melo Melo

    Melo MeloPrije 18 sati

    Heated sand might be relaxing....

  59. Pine Tree

    Pine TreePrije 18 sati

    I only use my *RAYCON* earbuds while playing *RAID: SHADOW LEGENDS* with my *EXPRESS VPN* enabled so that I can order a new box of *DOLLAR SHAVE CLUB* razors online with *HONEY* of course. I also listen to *AUDIBLE* in the background while having *NordVPN* active (for security and protection of course). I forgot to mention that this is all powered by my *LIT MOBILE* power bank (obviously it has a million mAh battery so everything stays charged and switched on). I learned how to do all of this by taking classes on *SKILLSHARE* and *BRILLIANT* . Also, I made all of this on a website made with *SQUARESPACE* and after that I made another website using *WIX* (why wouldn't anyone want another website). Edit: I typed this on my *PURPLE MATRESS*

  60. Henry Jor

    Henry JorPrije 18 sati

    My god this was made by the HRgo algorithm

  61. Alexa little puggy Johnson

    Alexa little puggy JohnsonPrije 18 sati

    He’s super duper smart who here agrees 😱😱😱😱😱😱😱😱😱😱😱

  62. Comedy Silver

    Comedy SilverPrije 19 sati

    <a href="#" class="seekto" data-time="96">1:36</a> sand rainbow

  63. The_Potato_ Is_Looking-At_You

    The_Potato_ Is_Looking-At_YouPrije 19 sati

    Intrusions unclear i thought i could put my fish in there

  64. Miley Garcia

    Miley GarciaPrije 19 sati

    <a href="#" class="seekto" data-time="96">1:36</a> :O A RAINBOW 🌈

  65. Lilac Skywalker247

    Lilac Skywalker247Prije 20 sati

    I don’t like sand it’s course, and rough, and irritating, and it gets everywhere

  66. Leah Som

    Leah SomPrije 20 sati

    so is it a liquid or a soild

  67. Henry Jor

    Henry JorPrije 18 sati


  68. Gabriel Marks

    Gabriel MarksPrije 20 sati

    Me watching this and thinking of a way to do this at a beach: 👁️👄👁️

  69. Foggy Forest

    Foggy ForestPrije 20 sati

    If only every science teacher was like him,i science would be my favorite subject

  70. Oliver Hall

    Oliver HallPrije 20 sati

    Hey guys this how to make quick sand

  71. bryancho76

    bryancho76Prije 21 sat

    First sees shaggy on tug of war than the buff guy then shaggy uses 1% power ok pulls it out of space

  72. EF_Flupper

    EF_FlupperPrije 21 sat

    That’s satisfying

  73. Dylan P.

    Dylan P.Prije 21 sat

    i want to know what would happen if he stopped it while his nephews were fully submerged with their head under

  74. ZΞRO

    ZΞROPrije 21 sat


  75. am a good doggo

    am a good doggoPrije 21 sat

    Dylan P. No.

  76. Šīlky Bøī

    Šīlky BøīPrije 22 sati

    What id give to be in ur street and maybe help in any of some experiments

  77. Ashwath

    AshwathPrije 22 sati

    Cody Ko reference right there <a href="#" class="seekto" data-time="68">1:08</a>

  78. redwolfdragon KiraNGordonDJ

    redwolfdragon KiraNGordonDJPrije 22 sati

    It's like quicksand, but faster

  79. DO__IT_YT 3131

    DO__IT_YT 3131Prije 22 sati

    This looks so satisfying lol 😂

  80. Sarah Helzwar007

    Sarah Helzwar007Prije 22 sati

    This is cool

  81. BarooBoos

    BarooBoosPrije 22 sati

    <a href="#" class="seekto" data-time="94">1:34</a> Sandbow! 🌈

  82. East coast Road king

    East coast Road kingPrije 22 sati

    Make a pool size

  83. Gabriel Galang

    Gabriel GalangPrije 22 sati

    dry water?

  84. Bethany Luck

    Bethany LuckPrije 23 sati

    I want to touch it.....

  85. Falcon 61

    Falcon 61Prije 23 sati

    Who must the favourite uncle be?