The Weissenberg Effect

[PenguinTQE]

Woooo...Nice one! :) :> :P

[jayejayeee]

great video thanks

[MrJonkelp]

i enjoyed this vid

[bebeheuy]

I am very happy to see the vidoe after you give this When a rod mounted in a hand drill is dipped into a liquid and rotated, for certain non-Newtonian fluids the liquid will climb the rod - sometimes to quite spectacular heights.

[AntoMelta]

I Really Like The Video From Your When a rod mounted in a hand drill is dipped into a liquid and rotated, for certain non-Newtonian fluids the liquid will climb the rod - sometimes to quite spectacular heights.

[willamricard]

Your Video Is Very Useful Sharing When a rod mounted in a hand drill is dipped into a liquid and rotated, for certain non-Newtonian fluids the liquid will climb the rod - sometimes to quite spectacular heights.

[imegatrone]

after i watched this video, my insight is very open because the video is very good to give information When a rod mounted in a hand drill is dipped into a liquid and rotated, for certain non-Newtonian fluids the liquid will climb the rod - sometimes to quite spectacular heights.

[akshastry]

hey i want to use a very small part of this video for a competition. can i??

[LavenderSpecs]

It makes fun to watch. I sometimes ask myself, why my teacher in physics never made such experiments.

[Kistenmensch]

exciting, very cool vid.

[jefdaniels]

He just resurrected a wiffle bat from that bowl

[brenz36]

so why the hell hasn't anyone invented a rod/non-newtonian elevator yet?

[pistachioshell]

I love climbing rob

[ZOIVII3IE]

Seems sort of obvious since the liquids are somewhat thick and spinning it layers it upon itself... I don't get what's so impressive..

[FizzlNet]

Fukken miracles!

[felixisito]

I wonder what will happen if mercury is used as juice!!!

[FizzlNet]

@felixisito I don't think mercury is a non-newtonian liquid...

[isrealjason]

i'm guessing the yellow was a non-newtonian fluid? or was it some weird science juice

[xorbio]

1:10, Jessica Alba just walked in....

[baddestskip94]

powertools have been amazing inventions

[DancingSpiderman]

I di'id know GWAR had their own brand of gum...  If ida known, ida bot it at the store

[CRM09ify]

You should do the Leidenfrost effect. First, set the pan to oven then turn the burner on high then you keep it on for 2 or 3 minutes. Then, pour the water into the pan, it evapourates. But if you keep the burner on for another 2 or 3 minutes, you pour the water into the pan, it does'nt evapourate. But it was suspended in the pan moving all around the pan for hours. If you put the water in the cooler side it will evapourate.

[SergeantSloth]

I love climbing robs!!!

[asdolfhitler]

whoever first though of rotating a hand drill in pancake batter?

[skszacia]

how expensive is sodium tetraborate? 'cause i want to prepare this experiment on my own ;)

[mydesirescometrue]

Where is my corn starch and power drill at?

[br3wz3r12]

What if you pull the rod out while its climbing?

Does it cling to the rod?

Also what is that crackling noise? :S

[br3wz3r12]

what is that crackling noise?! :S

[Envergure]

Is this how silicon monocrystals are grown?

[xdazamx]

can't sodium tetraborate be mixed with hydrochloric acid to make a opaque solution?

[1antisupercat]

what was the yellow liquid?

[milarox1999]

is this flubber???

[mafiaslicka]

this is the kind of stuff that keeps me interested in physics

[appippappi]

nice



[oldboystef]

Although it might appear the the rod is very smooth and that a liquid would have trouble traversing it, by my account, nothing is smooth on a molecular level, there will always be abrasions to the surface that you can't polish out.. This would also explain the phenomenon I believe.. Correct me if I am incorrect?

[CWSSje]

@oldboystef i think so :) unless one would to hand craft a rod to such smoothness.

[skszacia]

@oldboystef dont think so. then also water would travel up like this if it was only up to abrasionas on the surface of the rod, and we know it does not. I was given the reasons on my lecture of fluids' mechanics, so when I find it, I can post it somewhere here.

[PensiveIntent]

is crude oil a newtonian fluid?



[gbousum]

I got some non-newtonian fluid on my rod, but it doesn't climb it, it just drips off and makes a mess. Any suggestions?

[oldboystef]

@gbousum You funny fucker! That just made me make a mess of my own! I don't believe that piss is a Newtonian fluid though! Bahhhhhahaha!

[yomamamamamification]

Climbs a rob.......?

[SatoTM3]

coooool =D thumbs up

[bullshark8822]

try this with corn starch and water, im not sure what it will do cuz i haven't tried it yet

[mallowman12]

What defines a liquid to be Non-Newthian?

[ldruiz69]

@mallowman12 A fluid is considered Non-Newtonian if its viscosity changes when a stress is applied. Mathematically, there is no linear relationship between the two. Bear in mind also that its a specified temperature because viscosity depends on temperature.

[sriramsola]

This is due to non-zero normal stress generated, that the fluid climbs up the rod opposing the centrifugal forces!

[shaqywacky]

THATS A LONG ROD!

[DarthVadermatt]

Where did you get the sodium tetraborate?

[guna1974]

Bunch of fucking scientists doing a bunch of science shit. Get a life you losers

[calel360]

@guna1974

fucking troll doing fucking troll shit. get a life you troll looser.

[Justbustin]

nar nar thanks man

[Tardis1217]

I'll display stunning rod-climbing abilities... if you catch my drift

[andreasfr1]

Yellow is coming to get you!

[GlovedFury]

hey look its bart simpson getting a hard on!

[Tata996]

When will modern science do away with using the names of idiots seeking immortality of their name or advertising their "donation" to science.

[antonima1]

@Tata996 theres really no good reason for doing this. These processes will still have to be named and according to occam's razor the most straightforward course of action is to keep the old name.

[cvg1099]

@Tata996 - This will happen precisely on March 31st, 2013, at 4:17pm Eastern US Time. That's when. Any other questions?

[MrDirtguy01]

aaaaaahhh! quit scraping the glass!

[afnaste]

We made oobleck from corn starch and water, in college. I liked giving oobleck to drunk engineers and asking them to analyze it.

[Santiines]

One can get a surprise when he takes the time to watch and analyse something which has already experienced or not experienced. Generally we need to have have eyes of a very courious kid, to get the info which the Nature gives us.

[MrIWishChaos]

F T W

[KristianCramer]

Heyooo!

good one XD

[rezz110]

She must have been a non Newtonian! Now that you know it, would you re-claim her?

[LinkMyBoy]

unfortunately she was a bit of a hussie, doesnt matter whos rod it was, she'd climb it once it got in.

[eleasias]

Oh yes you did!

[ChRoMaStOnE561]

@LinkMyBoy aha thats what she said x]

[DTZMasters]

@LinkMyBoy lolz

[ilovetheview47]

@LinkMyBoy was she a fireman?

[RunescapeWideos]

wat.

[jordanpasek]

in soviet russia, alcohol glues you!

[YairGeva7]

Wow, idiot.

[LinkMyBoy]

the speed of an electric drill might have been too fast.

[SargentandGreenLeaf]

you use glue to make alcohol in russia?

wth

[DevilMaster]

No, that particular glue already contained alcohol, which was just separated from the other components.

Russians had other "creative" ways to get drunk, and if you search:

viceland "russian cocktails"

on Google, you'll discover them.

[drahunter213]

nice

[thisguyflip]

rob

[daznix1094]

haha thts sweet,

[JW93HB07]

what's the structure of sodium tetraborate?

and do you know when i can get some?

[adriankocian]

BORAX

[truman890]

borAT

[hondac55]

you should get a power drill and do it =]

[BrainiacOutcast]

Woah looks like it.... but it's still pretty cool ;)

[bob84676]

@oldboystef why does someone always say something sexual even if it has nothing to do with it?

[isrealjason]

@bob84676 not sexual? what would Freud say...

[Bukuzoid]

На заводах СССР во времена "сухого закона" мужики из клея БФ-6 "на сверло" вытягивали клейковину, а в сосуде оставался относительно чистый (относительно) спирт.... :)

[Sp0s]

I can't understand a word of that except something about the CCCP/USSR/COMMMIES and a smiley face. But I like it. :D

[joshuapg21]

Combined Community Codec Package?

[matty3279]

tension is created when the polymer structure is tangled up by the rod, so the polymer opposes that by climbing up the rod to reduce the distance between the chains

[altoids79762]

Thats what she said

[ActiveStorage]

well these fluids are composed of tiny particles so they are kind of half solid half fluid... oh wait.. that doesnt explain shit lololo. now that's interesting

[jomes31]

h4x

[SrgntFruityPebbles]

wow someone is thumbing down all of the comments

[budsiskos]

are you using a hand drill?

[psidot]

Sure are!

[mrg1208]

@psidot *am

[seabasses187]

@mrg1208 *jackass*

[artalect]

@psidot this would be a hit with students, whats the ratios of ingredients

[54spiritedwill54]

That's amazing!

[OhNoItsGojira]

that's really interesting.

[ggag007]

how the h#ll did i do that?

[spokehedz]

White glue + sodium tetraborate = ELMERS GLUE and BORAX

[PUNETA123]

this effect is nice but dude u need a new drill, yours is going to explode soon... when that happens put it here.

[woosa246]

its a HAND drill it has no power supply and can not explode... read the info before you comment.

[NamesROverated]

You do know that hand drills are like those battery powered kind, right?

[woosa246]

NO a HAND drill has a handle and is manually driven BY HAND! A battery powered drill is a POWER drill.

[NamesROverated]

Well, it depends on dialect, but hand drills can also stand for handheld.

[laputahayom]

so what do you call what he's using,

just-better-then-caveman-drill­-drill

[Cesariono]

Non-newtonian liquids do a lot of bizarre things...

[bubba062393]

ok moving on into the twentieth century and the ELECTRIC DRILL.

[jfb005700]

the fluids that are being used are either sticky or some other dense material (not pure water). the material sticks to the rotating rod and thus begins to rotate. a vortex is created in which it attracts more of the fluid. within the created vortex the liquids density is greater than that of the fluid surrounding it - thus it has to expand somehow. because there is a current created drawing it inward it has no where else to go except up and down. we cant see the down but the up is visible. boya!

[MetalHensen]

Question here,

we know that those liquid could climb up while rotating. But this liquid should have other external energy such that it can have enough potential energy. But where is the external energy coming from? All we saw is just a rotating rod. But rotation is not a vertical motion, it should not be the energy source for the potential energy. But if we just consider the energy conservation, rotating rod is the only source. Could any1 know the answer? How could the fluid moving up?

[Graylord88]

Im sad to say, i think i know understand the answer, but i have no idea how to put it to the word.

[joehwu]

Very Fun!!!!!!

[EVCarolina]

Cool.  Thanks.

[skatman572]

lawl?

[0omikko0]

what is it???

[Graylord88]

What is the limit to what is defined as non-newtonian fluids? With enough force, even common water has non-newtonian properties.

[mrantis]

water doesn't

[Graylord88]

With enough force it does, IE skipping stones.

[mrantis]

skipping stones has to do with the way u throw the stone and how flat it is. No non-newtonian fluid stuff involved

[Graylord88]

Of course it has to do with how you throw it, it's like running on custard(non-newtonian), stand still and you sink. With the right speed/angle/weight/touch-times­pan, both are able to get a grip enough to move further, all fluids are non-newtonian in that sense, i am just asking how they calculate the limit and where this limit is.

[Graylord88]

It seems logical to use mass/density, if so, what density does water have, and what density does, say cornstarch or custard have. And at what density is a fluid referred to as non-newtonian?

[SwhereNthing]

The white glue-part was a bit frightening :D

A liquid and its climbing up... like a horror movie with an alien lifeform

[LordTeaOfBiscuits]

does this work for cornstarch+water?

[psidot]

Corn flour with water does not work. While being an example of a non-Newtonian fluid, it is not viscoelastic. That is, the fluid does not have both viscous and elastic properties which are needed if the Weissenberg Effect is to occur.

[kirbyfan95]

cornstarch, not corn flour. Cornstarch+Water is a non-newtonian fluid, so it should work.

[Graylord88]

You didnt read the whole comment, he said "While being an example of a non-Newtonian fluid, it is not viscoelastic."

[000FoxSnake000]

There are different types of non-newtonian fluids. Wiki it

[mrantis]

yes

[DeoGuy]

whats non-Newtonian?

[psidot]

A non-Newtonian fluid is a fluid whose viscosity depends on the size of the force which causes the fluid to flow. That is, unlike a Newtonian fluid, in a non-Newtonian fluid its viscosity changes (increases or decreases).

[Asdam12]

So basically it's viscosity depends on force? So cornstarch and water combined would be non-Newtonian?

[psidot]

Yes, the viscosity depends on the size of the force applied to the fluid. Corn flour mixed with water, while an example of a non-Newtonian fluid, is not viscoelastic and will therefore not exhibit the Weissenberg effect.

[Asdam12]

Okay. I think I get it now.

[youtabeer]

@psidot

All your Science talk is making me confused :(

[RadicalNH]

pretty cool

[mukersman]

u suck u pest

[freegg888]

Ok I read the description of what's going on-can someone explain it to me in plain English?

[brendanbell]

well what happens is the spinning stick is put into the liquid and your a faggot

[breastimus]

brendanbell, spell YOU'RE correctly. You moron! :)

[rasellersjr]

Instead of bashing, try the experiments yourself and you will find they work. It's simple physics.

[irishlad76]

occurs when a spinnin rod is placed into a liquid polymer Instead of being thrown outward, entanglements cause the polymer chains to be drawn towards the rod

chains get wrapped around the rod&then as you keep turning, the free ends in the bulk solution,are trapped in the tangled bulk. As the rod is rotated,the end of the chain wrapped on the rod is under tension. To try&reduce the distance between the two ends it tries to move up or down the rod to a region where less chains are wrapped round

[Airiflerholic]

the white glue sloution was amazing!

5 Star

[RyanChristianson]

hook it up to a power drill pl0x

[rasoros]

this is so fake, i bet it was done on the space station or the moon possibly.

[hasnder]

it's not fake

try it at home, you can even do it with pancake batter

I already did it with pancake batter since i was little when i was playing with it, just didn't knew that there was actually a name for the effect :P

seriously, think about i first and try it before saying it's fake!

****

[MANGSCHEUONiCS]

lmao i'm shitting around bro dont get too upsetq

[Mayonaiseses]

anyone who says these things r fake r just dipshits who dont take the time 2 understand it & that yellow shits got climbin skillz

[Cb138inRs]

u guys are stupid, the whole point of the effect is that sticky liquid will climb.. god u guys are stupid saying its fake...

[MANGSCHEUONiCS]

fake

[hasnder]

check all his video's

think all that is fake or sumting?

why would someone in ***'s name take his time to make fake vids?

[Wayavas1337]

Nice video!

By the way, can you tell me the name of the yellow liquid you used?

[cyobballa]

its mustard

[Anus2Mouth]

tetroborate is another word for the moisture that develops in the crack of your ass as you sleep at night. you can either collect enough over several months, using a sealable jar, or just check your local hobby shop!

[sadunpererarules]

the last one looked like egg yolk-but apparently wasn't

[carnivaldead]

That was pretty cool

[0x7F800000]

thats really cool! :)

@ArcticPuffinSG & nG370:

read some book about basics of physics... Of course, you still won't be able to explain behaviour of non-newtonian fluids, but at least you won't write such noncence in youtube comments any more ;)

[yuraonoda]

That's amazing.

[Nobrocybix]

UV wasted time i could have been porkin ur mom

[cgxphoto]

Wow, that was about as far away from intelligent as one could get.

Cheers to showing your age.

Sweet video, cool to know there's a name for this.

[philipsvt]

"stunning rod climbing abilities"... that's what she said

[12zxz21]

try molten marshmallow it does the same thing

[rahmid]

Damn, look at those climbing skillz! Chicks dig that shit

[nG370]

Does this have to do with the resultant vector from the cross product of vectors or is something else causing the fluid movement? If you spin the drill in the other direction does the fluid decend?

[Lywnis]

because of the initial buildup at the base, gets pushed upwards ?

[cribcat1]

if only water was viscous.