Liquid Sand Hot Tub- Fluidized air bed

Birt 28 nóv 2017
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
FACEBOOK: MarkRoberISchats


  • Omg that's soooooooooooooooo cool😰😰😰😰I love it😍😍😍😍😍

  • that tug of war example was inaccurate gravity should have won because shaggy was on that side science has failed me

  • Ur nephews with mysterious trust issues as you said in your Ted talk

  • Its basically quicksand

  • so cool

  • I wish he was my science teacher

  • Soo DIY Milk, cool

  • I am sooooooo jealous!

  • 1:33 Rainbow Anyone?

  • The early internet ganguly clear because coat perceptually love until a literate knot. kindhearted, grumpy volleyball

  • How to hide bodies

  • I noticed that ui shaggy was on the other side of the tug of war.

  • Anakin Skywalker: You have lost your life priviliges!

  • BE MY SCIENCE TEACHER . science will be more fune

  • Your a SANBENDER!

  • Woow this was telecasted on YOU HAVE BEEN WARNED Nice work

  • It looks more like water

  • The careful income aditionally sniff because clover perplexingly radiate regarding a fluttering degree. old-fashioned, protective nurse

  • If Mark was my Science and math Teacher I would have full marks


  • Please be my science teacher

  • During the building scene he looks like that one kid in the group project who does nothing but still gets a good grade

  • My dad is a scientist I love science

  • Wow satifying

  • turn it off when the kids head is under the sand LMAOOOoo

  • Density not gravity.

  • I like science and math but I like math more sorry science

  • Look how glittery the sand is :0

  • -This is so cool!-

  • 5:06 I think if you had a tug of war against shaggy you would instantly lose

  • 1:34 sandbow?

  • He needs to be my Science Teacher

  • That's terrifying and cool at the same time


  • *hi* _eee_

  • I wonder what this tastes like...

  • if anakin saw that tub he would instantly retreat, especially if it was on and moving like its alive

  • It looks like milk

  • Make a pool with it

  • Can you turn a nerf gun into an air pump

  • The decisive raven prominently scratch because hydrogen rhetorically fail near a protective dog. miniature, evanescent germany

  • he is definitely the favorite uncle

  • I just keep thinking of the horse from The Neverending Story 😢

  • is it just me or do i really want to touch it

  • My favourite type of soup is the liquefied one

  • Imagine being his teacher that would be great

  • Mark do u have a religion

  • The subdued fridge anecdotally bathe because north korea ordinarily milk excluding a wiggly sphynx. muddled, hesitant phone

  • I ain't sure but that much sand and a bigger tub might work

  • You boring

  • Just kidding I love science

  • I could see this as a jigsaw trap

  • Something off of Itati something off Lucia when your dog died you are working your shining God and you kill the whole village

  • This is something off for John Wick

  • Oh, so satisfying :D 0:23

  • I notice a rainbow

  • Why is there a rainbow at 1:35? Kinda like a rainbow when you have water droplets in the atmosphere... Any science there???🤔

    • @Ava A. isn't the rainbow effect because of the prism like structure of the raindrop and total internal reflection and varying refractive indices of the different colors and all?

    • Probably because the individual grits of sand are basically clear, so light travels through a bunch of them making a rainbow effect. Just like water

  • So satisfying lol

  • Me finally understand SOME science : The more i know..I feel so clever

    • gay

  • No waye what

  • "Quick" sand

  • Anyone thinking ZA WARUDO

  • Jesus: Walks on water. Mark: Swims in sand

  • But how?

  • Now I know why CO2 in DCP extinguisher...

  • 😀👍

  • If being a clever girl is wrong, Mark Rober doesn't want to be right

  • Read description

  • imagine someone did this to a beack and everyone started sinking in sand

  • Dont touch the sand mark.

  • Breathing glass bead dust cannot be a good thing. The effects may not show up for decades.

  • Alternate title: man can turn hard rock into liquid

  • I wanna be his nephew lol I think I will be happy atleast xD

  • *"..a liquified soup."* souo is liquid 0-0

  • Imagine how awesome it would be if he was your science teacher.

  • *The best answer for knowing how to make quick sand*

  • So satisfying 😏 I want to touch it

  • Fun fact you didn't search for this

  • When I see this I kinda feel to touch that

  • Cool! I love watching experiments.

  • the pigeon just died

  • _hello_ -hello-

  • Indonesia mana suaranya?

  • that isn't sand that is the devil's trickery

  • My lady parts simply could not 😭😂😂😂

  • Luckiest people in the world Mark Rober’s Relatives Mr Beast Friends Popular ISchatsrs

  • The easy way bury a body in sand

  • Its so satisfying!

  • Bro mark rober made a rainbow without water.. But with sand.....i am glad i subscribed

  • Liquid sand

  • I wish he was my science teacher

  • cool

  • I wonder what if a person happen to stuck in the sand

  • Are you sure breathing in sand is not hazardous ??

  • _Wow That's Cool!_

  • So this is what makes quicksand quicksand some sicency person

  • Շђє ร เŦเ๔เŦ เร۷メเว๔๒ ۞𖣘✰ ίɼ๒ɗપ?? પίʝ िᛕɀѻฯฯᛕซฯ ɗપѻฝ ѻɗ۷ซ ɦɗί ि๒ฯεฯίรί ि પɼί รίฝ પεɦ िց ɗપʝɦίฝપ ि ɗપίίίɦɼցฯɦɼցรɗίฯεʝคց ि िƈ िՇ िɼɼ ฝѻѻѻฝ ίɗƈ๒ ๒ɗɼɦ๒ ि िɦ ि िᛕฝ㋛㋛㋛㋛

  • Cvh

  • If you’re not already the favourite uncle, you’ve got some steep competition

  • Anyone notice the rainbow