Quicksand: How to Make and Play with a Non-Newtonian Fluid

[MJKJOKER]

1:22 thats what she said xD

[naailnaseer]

Can I make it with corn flour ?

[sebbouck123]

i used to dislike science but i regret it now...

its so freakin awesome :D

[Brikkwall]

hmmm oobleck plus red dye. Does that work? Or will it ruin the balance in the mixture?

[sebbouck123]

@Brikkwall i think so cause ive seen many people do it but maybe not TO much

unless youll be willing to make some more

[IDeafpool]

can i eat it?

[sebbouck123]

@IDeafpool wouldnt that make some wierdo chain reaction

[theleahyy]

wow so kewl when the hammer hits it lol

[TranceFur]

Cut it with scissors.

[awsomevids2u]

WOW This was so fun!! Thanks for showing us how to make it!!

[LetsPlayTri]

"Fun things to do: Hit it with a hammer"

Doesn't that apply to everything?

[TeamYGOGInfinity]

@LetsPlayTri as much as i would enjoy hitting a hammer with a hammer :)

[TecchyTutorials]

at 2:19 it actually looked like the mixture was scared of the hammer and made a hole in itself to avoid getting pummeled lol.

[AndromedaChao2]

'two part cornstarch and one part water'? If those ingredients were in grams would that mean, say, 2 g of cornstarch and 1g of water?

[daniel55645]

your vid says 2 parts cornstarch 1 part water but all other vids say the opposite. 2 parts water, 1 part corn starch

[leopardlover001]

I shall try this!

[panfan06]

Completely incorrect definition of a non-Newtonian fluid. It doesn't have to have solid properties to be non-Newtonian. Afterall, even shampoo is non-Newtonian. Don't believe me, youtube search Barus effect.

[TheJoeeReflex]

We arnt fucking idiots... we know what water is

[Rocknoob49]

best iformation of this vid: you cannot pick up water!

[LugiaXArticuno1]

I'm going to dig a hole fill it with this stuff and have someone stay in it =)

i will laugh so hard at them xD

[Moktai]

Chopain. Nice choice of music I must say.

[982038]

just call it oobleck

[alkeli78]

So let me get this straight.... you CAN'T pick up water and make a ball with it???? WTF???

I'm just kidding! This is really cool and I gotta try it one day when the wife's not home! LOL

[MindLagP]

@alkeli78 you can :D just freeze it! yay

[phantomsgf]

lol ....or you can just hit it with a hammer... like any other normal person would, it's FUN!!

you're actually really funny :)

[MrIam1nsane]

"Hit it with a hammer" Well you didn't need to tell me that. Hitting ANYTHING with a hammer is fun!

[jamesfan10]

wow you eat a lot of pie ;D

[longshanks0971]

How can you dispose of it when you're done playing with it? Can you put it in the frig?

[Mjbabycakes7072]

@longshanks0971 Dump it in the toilet.

[lelandac]

hitting it with a hammer!

[namywamy]

This is perfect for hot potato! Lolol

[DanielEagleEye]

I learned about non-newtonian fluids today in class and your video is very good. It teaches us and it's funny at the same time.

I will try to do that here in my place.

Good Job

[shenas5002]

wow! i gotta make that! just how???????

[Theonegamefreak]

Lol trying to pick up water.

[10skydrive10]

when you spill the stuff on the flour our something you can pick it up!!

and form it by touching the sides of the fluid fast. (:

[sapphirestar100]

LOL awesome!

[lilrocker1999]

when u hit it wit the hammer it fixed back together like wolverines skin

[TheGoofygangsta]

Add food colouring cuz it looks sick!

[LonelyPandaz]

my 6th grade science teacher did this with our class

[KyleLee408]

Hmm... filling up a 5ft deep pool with cornstarch would be fun... try and swim/dive, you're doomed!! xD

[TheCrunchifiedOne]

trying to pick up water lol

[T3hTroll]

I need to make a shxx load of this to run on, lol.

[anima7775]

cool



[TheMagichan33]

this music is burning my ears fucking turn on some death metal douche bag

[AirSofter131995]

@TheMagichan33 and death metal doesnt hurt your ears? i would rather listen to this crap then death metal!

[TheRunscapeFans]

im so doing it tonight

[MrSniperpwnage]

that has to be some of the coolest shit i have ever seen :O Im so doing this tomorrow

[alexmini123]

non newtonian liquid is virtually indestructable

you cant break it with a fist

[pdanielson5]

Does it change with heat?

[Sammy117]

Fantastic video... you made it in such a way that even without making it ourselves, we can get as close to the experience as possible.

Really excellent :) Thank you (and your parents, too!)

[WankstaProductions]

What is that song?

[demonblond14]

haha i was playing with some while i watched this video :D it's so sick!!!

[RECONSALE]

is it sapoose 2 be watery on the top

[moomind1]

figeroski, ooblek is non-newtonian fluid

[coolblah243]

i made it at home then i tried to cut it with a knife and it cant

[figeroski]

i hate the stupid music

[figeroski]

this is actually how u make ooblek retards

[mixtertrix]

I would love to throw a Non-Newtonian fluid 'ball' at someone only to have it 'melt' before they could throw it back at me.

Or throw it at a mate and yell "CATCH" only for it to 'melt' in his hands. AWESOME!

[lebkha]

Boooooooooooooooooooring

[ProfessorPathogen]

This shit's great, and I love the concept of it being used as military armor.. though I'm sure after it gets shot a few times you'd need to replace it

[5angelsfan]

can you do it with corn meal

[ldruiz69]

A non-newtonian fluid is actually a type of fluid whose shearing stress applied is not linearly related to the shearing strain. The particular fluid you showed us is, like you said, a shear-thickening fluid (viscosity increases with increasing shearing strain) which is the particular type of this non-newtonian fluid that you showed us. Btw this isnt quicksand (though the concept is the same :P)

took this in my fluid mechanics class and wanted to show off a bit so yeah i got a bit technical XD

[aozf05]

The non-newtonian fluid demonstrated here is only one of the types: the type that becomes solid when force is applied. He forgot about the type that acts like a solid but becomes like a liquid when force is applied.

[aozf05]

@OurBlackHearts23

Scientists are researching military applications for it. They've already made a prototype bullet-proof material by treating kevlar in a mixture of water and sand silicate. They showed it on the Discovery channel. It makes for really lightweight armor, the only problem being that slow, stabbing attacks will not be blocked. Bullets and quick stabs won't get through but will still really hurt the wearer.

[aozf05]

sorry

They treated kevlar with a mixture of ethylene glycol and silica, which is another dilatant.

[Tackleking123]

@OurBlackHearts23...that is actually a question that mythbusters tried to prove. they found that the only way for it to stop a bullet was to have an obscenely large amount of it that would not be a reasonable solution for a bulletproof material

[13fisherman2007]

@OurBlackHearts23 how would you get it to stay around the body? if you made small pockets in it there would be too many weak points and if there were two layers it would be to heavy

[ghostofsouls]

i do belive thats ooblick

[nickjfan9100]

i love this video thnx but the music was a little annoying but any way thnx a lot helped me

[lahmayes]

There are many types of non-newtonian fluids, dilatant is not the only kind.

[KaldonisPondo]

THANK YOU SO MUCH :D

[ajicali]

WHAT IS CORNSTRACH??

[DisplacedSOCK07]

Wow I just made it.... this is awesome!

I think it's more like 1 part water and 3 parts corn starch, though.

[TheZiyiDude]

Hey, anyone thought of making new protective vests with this thing? I meant vests for Taekwondo and stuff, cuz ya'll said it hardens when hit, so if someone got hit while wearin it, he won't feel a thing, right? Pls tell me what u think!

[parkourperson28]

@TheZiyiDude ermno cos as the liquid becomes a solid the vibrations from the punch/kick will carry on into the body, although i can see a possiblity of the energy being converted into the energy used to convert liquid to solid, so its possible

[torryland]

they actually made one with it infused to kevlar layers, but they still looking for the right way to stop slower acceleration ( punch n kick ) which I agree would be an awesome fight vest.

[nevertheless123]

very nice and funny intro. thanks!

[aznkriss133]

someone should test it with a gun

[GR33NLIM3]

love this stuf so cool

[ukijecar]

Haha i made it 2 minutes ago , but you need to put the starch first than te water ;)

[Caranellus]

i made it its awsome

[sharingon101]

doing this for my science project =) and it wrks!

[slavezeroyahoo]

can flower can all work or no

[fivexthethird]

!!!!!!

Mix cloth and this... and it becomes bullet proof!

[vborg101]

hell no...u say that the hammer made a hole in it similarly the external deforming force that is bullet will not be nullifed by the restoring forces of the non newtoninan fluid hence a hole will be made right through but the edges of the hole will behave like a solid if that a comfort to u

[icefishkid28]

nice music muiye favorite

[lepermessiah14]

whenever i make this i always just get a milk looking liquid and its got a consistancy of water.... i tried adding water first then slowly adding corn strach and visa versa...what could i be doing wrong?

[carlogc]

add 1 cup of water and after add 2 cups of cornstarch mix it with a spoon in quick circle until the fluid becomes "hard" the to see if its OK punch quickly and if your hand gets dirty its not ready yet and you need to mix more if it becomes solid and then goes back to liquid state thats a perfect non newtonian liquid

[cookie8142]

put less water

[esenozbay]

i experienced that too. just add more water until its heder to stir and dont forget to mix it well to meka sure the whole starch is mixed.

[HeiHolaHello]

Im gonna make this

[TheZiyiDude]

Sweet ! Will try it out A.S.A.P! Hey it works out like quicksand right? So that means a new prank for April Fools! I bet I can dig up a hole in the ground about waist level, fill it up with this non newtonian liquid(aka wasting a hell a lot of corn flour), then let some noob step into it and freak out thinking they're gonna die. Lolz pls tell me how yall think about this prank?

[DogDino]

You know if you do that, you can actually RUN over it, right? :D

Its almost like walking on water, just your running on cornstarch ;D

[TheZiyiDude]

Yeah, I know, but if you dont walk fast enough, you'd end up falling into it, and I dont think my dumb-ass friends know sh** about this stuff. So, they'd simply walk into it and start sinking! LOLZ

[DogDino]

Hehe, 100kg of corn starch here we come? x)

:D

[torryland]

I saw one in a discovery channel, took almost half ton of cornstarch to make the pathway. he had to run all the time across the path.

[Lilypad443]

@TheZiyiDude XD

[TheZiyiDude]

@Lilypad443 Lolz

[aquaagu2]

@TheZiyiDude its worth killing someone :)

[phsycoticchicken47]

@TheZiyiDude that would be AWESOME!

[Harrydereus123]

danm i just made it its so much fun!

[kurdishsouljah3003]

is cornstarch basicaly CornFlour? Because im looking on some websites and i cant find cornstarch but i can find CornFlour.

[isaactehpwnz]

Just go to your local Supermarket and ask an employee where you can find cornstarch.

[204YoungGuitarist204]

yes u can do it with cornflour

[Fer9159]

how long does the mixing take

[rr97khl]

Your parents rule.

[stupidstickanimation]

if u dont want to spend the money on cornstarch u could always just stab urself :D

[dragoniodeagle]

dude the vid was helpful i used it for a science project and got an a+

[GTAstuntz]

its chinese not chinease

[THEkrazyBOY2596]

i did it its cool like making the ball and get it to melt in your hand

i got cornstarch from my local chinease food place i gave em like $3 for 3 cups

[666ME666TAL666]

that is so awesome, i wanna try it

where do you get the cornstarch from?

i've never seen any in stores...

[FluffNuggetInventor]

You can get it in stores. You need cornstarch to make gravy.

[penguinx32]

walmart

[bamf64]

how long does it take to stir?

[kinkaman]

AN HOUR jk :) like umm i guess 8 min tops hope i helped

[THEkrazyBOY2596]

a bout 5 to 10 min

[crambaba]

i used cornflour it dosent work :(

stupid maize starch

i want corn starch not maize!

[BanJobe1]

???

[4k9kevin]

can you use baby powder on water and make the fluid

[areallylongassname2]

what if i shoot it out of a paintball gun?

[ilikepie41222]

backwards

its 1 parts corn starch per  2 parts water

[blademasterfilms]

thats cool

[jason48529]

youre mixture is to thick...

to much corn starch?

[steinarmacedadaddy]

i think he made it too thick

[americaneedsgenuises]

I had a big bowl of the cornstarch goo and it grew mold. Are their any subsitutes like this that don't mold?

[mistersnaredrum]

try replacing the bowl of goo once in a while :o)

[waitingforbrain]

can you DRINK it?

[knowledgeisvictory]

it tastes like shit

[steinarmacedadaddy]

its so hard to make a ball

[ankitmightysethgmail]

awesome stuff

[santom19]

neeeeeeeeeeerd

[origamisquaredvideos]

Aparently, 16,456 current viewers are nerds too :)

[sapder117]

@origamisquaredvideos now its 52,218 nerds

[Nicknacmania]

airsoft?

[jingle41]

just made this, its SO fun till your dad comes out bitching about shit at you and makes you clean it up =P

[NeverLuving]

can u use cornflour? :L

[RyaSte12]

Lol cornflour is starch So yes you can

[americaneedsgenuises]

I think cornflour is the same as corn starch.

[tiednotes45554]

it is its just its sed differently to different countries hope that helped!!

[BloodOnTheRooftop]

Very nice video and funny stuff!

[tjrgangsters]

lol base ball

[intent226]

and umm my question that i wanna prove is why those it turn from sold to liquid thx

[mmtigan]

it turns solid only for metal objewcts i believe, and only when high kinetic energy is involved

[mmtigan]

ummm actually, for organic stuff too, not just metalic, sorry

[origamisquaredvideos]

There is more than just metal and organic. For example, synthetic, non-metal, and semimetals also make it thicken. If you shot an air stream at it, or a stream of liquid, it would cause it to harden. Vibrations (such as sound) can cause it to harden. Even centrifugal force and gravity can cause it to harden. Generally, forces cause a STF to increase in viscosity.

[origamisquaredvideos]

I explain this to a small extent in the video. I can't think of a procedure that would conclusively answer your question, but if you want, I can link you to research done by others.

[intent226]

yo can u send me a hypothesis and procedure cuz i wanna do this expirement plz

[origamisquaredvideos]

Hi. You have to give me a little more info, but I am happy to help! If you just want to make some, you don't need to propose an experiment. Just watch the video. If this is for a science fair or something, propose an actual project (such as resistive properties versus water/starch ratio), develop a hypothesis (YOUR guess of what will happen), and a procedure of how to test it. If you need any help, let me know!

OriSquVid

[Hanakimi16]

THNK U!!!!!!!!!!!!!

[origamisquaredvideos]

U WELCO!!!! =)

[Azalemeth]

I very rarely comment on youtube videos, but I did spot one large mistake: non-newtonian fluids are those fluids that do not have a directly proportional stress-versus-rate-of-strain response; sheer-thickening materials have a viscosity that increases with applied strength. Psuedoplastic materials are non-Newtonian, but have a viscosity that decreases with applied stress - e.g. toothpaste keeps it shape on the brush, but you can squeeze it out of a tube.

[origamisquaredvideos]

I very well could be wrong, but out of academic curiosity let me make sure I understand. My understanding of a Newtonian fluid is that the viscosity is independent of forces applied and changes only with pressure and temperature. A STF increases viscosity with applied force, and is thus non-Newtonian. I am aware of the technical definition, and you are completely correct about it, but in terms of what it means a STF still is non-Newtonian. Please inform me if this is incorrect.

Thanks,

OriSqu

[thebestgirl18]

I love ur vids! the origamis one and this!

[dirtydeedz161]

I watched this video, then went and made some. THAT IS SO AMAZING.

[muhi94]

thats cool!

thanks for sharing

[fgfgd3]

learned this in 5th grade it was sooo cool when we did it =] thanks for reminding me

[Zoukki3]

This is so cool! I tried it and it was awesome! Thank you so much. :) I subscibed.

[fizzo20]

HAh that would be so much fun to throw that at people :D

[01134hello]

SOMEBODY PLEASE SHOOT THE FLUID!!! it could be a cheap way to protect yourself!!!...after someone has discovered a method on containing the fluid into a vest like shape

[origamisquaredvideos]

This one won't stop a bullet. It barely stopped the hammer. It would take a better STF to do that. The army is working on one, though. It won't be cheap, but it will be light and flexible.

[mrantis]

If you had more it might stop a bullet

[origamisquaredvideos]

Very true. Then again, the mythbusters showed that enough boxes of pizza can stop a bullet. It is unpractical, through, to wear 100 boxes of pizza. All the cheese would fall off! :0

[random123outburst]

i was thinking the same thing then i thought waht if the liguid was pressurised would it stop a bullet then?

[ToastyUploads]

the army is working on this right now, (though not with corn starch and water)

theyre working on a flexible fabric that hardens when hit

[smallsafeprice]

it, um, says that in the video...

[fungiimush]

thats too easy!

[jschmadeke4life]

Great video - Would you mind if i showed it to my freshmen kiddos when we explore states of matter?

[origamisquaredvideos]

I am always honored to contribute to the academic world! I am thankful you think my video is good enough to have instructional value.

[cheezy805]

thanks! lol, i'm gonna go buy some cornstarch right now!!! P.S. is it possible to add colour or will that screw the whole experiment?

[origamisquaredvideos]

Possible, and fun!

Good luck!

[Loveisinportant]

Is there a difference if your corn flour (starch) is white or yellow? couse i've only seen people use white one, and i tried with a yellow-ish kind and it didnt work.

[origamisquaredvideos]

Corn FLOUR is yellow, and Corn STARCH is white. Corn flour doesn't work.

[Loveisinportant]

Ooh thnx.

The translator i used (English - Slovene) said corn starch was the same as corn flour, found out it has a different name.

Thanks alot :)

[jwin2233]

every time i bite it it hardens so i swallowed it sip by sip. not bad but its really sticky try it who nos u might like it.

[jwin2233]

yeah i think of stupid shit il try it and if i dont die il tell u bout it

[origamisquaredvideos]

I appreciate your noble efforts to progress biological study. It will taste horrible, and can't be too settling to the stomach. Don't say I didn't warn you, and don't tell your parents who made this video =p

OrigamiSquared

[bogerbob]

can  u use anything to sub cornstarch

[origamisquaredvideos]

Yes! There are many STF's. CornStarch is definitely the easiest and cheapest to get your hands on, though. You can get it for under a buck at your grocery store.

Thanks for your interest, and please subscribe! More cool science is on its way.

[jwin2233]

can u eat it?

-.-

The first thing that pops into your head is "Can you eat it"? The answer is yes you can (I take no legal responsibilities for any actions you take with this knowledge). It is cornstarch and water, both of which are non toxic. The cornstarch just absorbs the water; no chemical composition was changed.

Thank you for your interest, and be sure to subscribe! I am about to make a video on how you can make a homemade DC motor.

OrigamiSquared