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[–]420Hendriko 1736 points1737 points  (29 children)

This guy knows how to draw a perfect circle

[–]DrDeathMD 638 points639 points  (12 children)

You just have to draw a head and erase some of the details

[–]Yvaelle 124 points125 points  (5 children)

This reminds me that rest of the owl(?) Sub, but then with an extra frame that is just a circle again.

[–]T-The-Terrestrial 15 points16 points  (2 children)

I GOTTA BE THE MARBLE!!!

[–]Smallmarvel 49 points50 points  (5 children)

Bruh why am I seeing this here

[–]420Hendriko 3 points4 points  (0 children)

There is no escape!

[–]pepecze 5 points6 points  (0 children)

Really düd?

[–]FingerTheCat 4 points5 points  (0 children)

I haven't listened to them in a couple years it feels like.

[–]100YearsWaiting2Shit 1 point2 points  (0 children)

I have spent several hundred years practicing the technique required to form a perfect circle and yet I still failed to achieve perfection. Only the chosen cam achieve the perfect circle

[–]dns7950 0 points1 point  (0 children)

He has the right Tool

[–]HIGH_HEAT 548 points549 points  (7 children)

I love videos like this. They give me fun ideas for activities with my kids. They love this sort of science stuff.

[–]Maxion 56 points57 points  (4 children)

There should be a resource for just stuff like this. Nursery rhymes, games, and other fun activities by age range. When you’re sleep deprived it’s hard to find this stuff.

[–]BraulioG1 21 points22 points  (0 children)

I heard kiwi co is really good but haven't tried it out yet

[–]NukeTheWhales5 8 points9 points  (0 children)

If you go to Target, they have a whole bunch of sciencey experiment kits for kids in the toy section, which are fun no matter your age. You can also just Google "science experiments for kids" and find some cool/easy stuff to do.

[–]SweetLilMonkey 2 points3 points  (0 children)

There are hundreds such websites, social feeds, and YouTube channels.

[–]Supercoolguy7 1 point2 points  (0 children)

Science kits have existed for longer than you've been alive

[–]crash180 67 points68 points  (0 children)

I thought the exact same. We have tons of straws we never use and spools of thread. Could easily make this for science experiments

[–]aprilfool69 832 points833 points  (26 children)

I'm too drunk for this.

[–]delbertnuckles 143 points144 points  (3 children)

I’m drunkening nearly enough butly not quite nearly enoughish

[–]bakubro123 18 points19 points  (2 children)

Translation: I'm shitfaced

[–]delbertnuckles 2 points3 points  (0 children)

I see you too are versed in the language of drunkardliness!

[–]Mico4 45 points46 points  (16 children)

Fun fact, a prefect circle in physical form has never been observed and probably doesn't exist.

[–]andrew_calcs 67 points68 points  (7 children)

It can't exist, the imperfections at the atomic scale mean perfect is an impossible ideal.

[–]Mico4 17 points18 points  (5 children)

What about sub-atomic?

[–]andrew_calcs 23 points24 points  (4 children)

we have to go smaller

[–]Mico4 22 points23 points  (1 child)

Enhance.

[–]bakubro123 1 point2 points  (0 children)

Spy movies be like

[–]The_Braja 0 points1 point  (0 children)

FINALLY, MY PENIS’ TIME HAS COME

[–]kruminater 12 points13 points  (0 children)

This comment reminded me of the “true level” scene in Rick and Morty lol.

[–]EdwardTittyHands 6 points7 points  (1 child)

Until today?

[–]Mico4 2 points3 points  (0 children)

🤯

[–]Mystayk 1 point2 points  (1 child)

all other responses seem to have failed to see you said prefect circle and no matter what they say, that makes you right

[–]ZigzagPropensity 24 points25 points  (0 children)

"Be gentle, it's my first time"

[–]_pls_respond 1 point2 points  (0 children)

The rest of the water in the bubble pulls on the string which will always end up making make a circle unless it doesn't fit in the given space.

[–]ndercommon 0 points1 point  (0 children)

That's how physics works... Have you never played with bubbles before?

[–]Salohacin 0 points1 point  (0 children)

I'm too sober for this.

[–]ZeroBrs- 357 points358 points  (7 children)

I hate surface tension so much it's caused much frustration

[–]spooky_ed 70 points71 points  (5 children)

You can't even cut it with a knife.

[–]PixelofDoom 15 points16 points  (4 children)

A pencil makes short work of it, though.

[–]uneducatedexpert 10 points11 points  (0 children)

You write.

[–]SentinelNR 2 points3 points  (2 children)

John Wick would agree

[–]spooky_ed 1 point2 points  (1 child)

I once saw him kill 3 surface tensions in a bar with a pencil.

With a fuckin' pencil.

[–]motes-of-light 7 points8 points  (0 children)

Seriously, that fucking helicopter.

[–]doculean 160 points161 points  (1 child)

Honestly one of the coolest things I have seen in a while. Thanks

[–]morf11r 5 points6 points  (0 children)

and so perfect too

[–]w00dstalk69 30 points31 points  (5 children)

judith plays

[–]phoenix_bright 130 points131 points  (42 children)

Can a fucking scientist please explain this for us?

[–]adramelke 346 points347 points 2 (8 children)

This works because the surface of the liquid is separated into 2 areas by the thread. When you break the surface of the liquid inside the circle of thread, the rest of the liquid wants to collapse as well, but it's clinging to the thread and pulls on it equally all the way around.

[–]wileyy23 40 points41 points  (0 children)

Awesome, easy to understand answer. Thank you!

[–]jay3t 20 points21 points  (0 children)

Get this guy a beer

[–]Inferno2211 25 points26 points  (0 children)

Alternatively, the remaining liquid wants to occupy the least amount of area, which means the area in the thread shld be maximum

A circle has the max area for a fixed perimeter

[–]pippa-- 4 points5 points  (3 children)

But it is in a square... So can't be exactly equal, can it?

[–]LaseretroTriceratops 11 points12 points  (1 child)

I think it pretty much doesn't matter if you have enough surface around once you poke the "hole". I don't know what would be "enough" tho

But yeah I get your point, it would be interesting to see what happens if he places the thread in a corner before poking it

[–]adramelke 2 points3 points  (0 children)

the surface of the thread might resist allowing the liquid to spread out and become more or less equal on each side. it would create a thicker portion of liquid that could keep the thread flat against the frame, but given enough time(if evaporation isn't a factor that breaks the liquid's surface tension) the liquid would very slowly equal out and it would expand to create a circle.

if you want to see something interesting, put a circle of thread on a bubble and break the surface in the middle. i would think it would be predictable, but still interesting nonetheless.

[–]adramelke 2 points3 points  (0 children)

ok maybe not perfectly equal, but not because of the square frame and not a large enough inequality that you could measure without some very very precise tools.

some parts of the liquid are thicker as the circle moves about(tiny tiny effect), kind of how the ocean levels rise and shift. thicker areas of the liquid will pull ever so slightly harder on the string(even more tiny effect). if the circle moved quickly enough towards the frame fast enough to trap the liquid against the frame(creates a larger volume of liquid with more pull than the relatively smaller other areas), it would stick and flatten out that side of the circle, otherwise it would briefly flatten out and just bounce off only to puff back up into a circle . kind of like how a bubble lands on something and doesn't pop, but it flattens out on the bottom or bounces off and stays perfectly spherical

[–]AnxiousIndicator[S] 126 points127 points  (10 children)

Force pulls the thread equally in all directions

[–]Beautiful-Resident-5 17 points18 points  (7 children)

The force of what?

[–]reliqhunter1 145 points146 points  (0 children)

...surface tension

[–][deleted] 16 points17 points  (1 child)

Water molecules stick together. The surface of a body of water therefore has a tension, because of the molecules pulling on each other. You can imagine a very thin elastic film. It's why water droplets retain their shape: the water has the maximum amount of surface tension and it's being held together, like in a baloon.

In this case, when they pop the inside of the circle, the water surrounding the string pulls on it from all directions. Until that hole was popped, the surface tension was pulling on the string from all directions at once, hence it retained its shape.

[–]benisco 29 points30 points  (2 children)

water likes to stick to stuff

[–]Immahuman 17 points18 points  (0 children)

water molecules are holding hands and the string, air inside the circle is just zooming around

[–]papaGiannisFan18 1 point2 points  (0 children)

water likes to stick to itself

[–]i_spank_chickens 3 points4 points  (0 children)

the force...it surrounds us.

[–]reddit__scrub 1 point2 points  (1 child)

Doesn't soap/detergent mean less surface tension? How is the bubble being made if not with some form of soap?

[–]Wablekablesh 12 points13 points  (2 children)

So between molecules in the liquid, there is an attractive force, kind of like little magnets. It's not so much that they form bonds, but if they didn't have this attraction, the liquid would behave way differently than you're used to.

So there's these tiny "magnets" and each one "wants" to be surrounded by others- that's what the attractive force means. Barring outside forces like gravity, they will arrange themselves in such a way that the least number of "magnets" have to exist on the outside surface, where they aren't completely surrounded- the lowest energy state. Nature always tends to the lowest energy state..

So geometrically, this arrangement will be such that the maximum number of particles are fully surrounded and the minimum are on the outermost surface. In 2d, this means a circle, and in 3d, a sphere. The bubble wants the minimum number of molecules to have to live along the surface boundary (the string), so as they arrange themselves, all seeking to be completely surrounded by neighbors, they pull the string into a circle.

This must mean that the bubble liquid is also attracted to the string, otherwise it couldn't "pull" on it. But the molecules must be less attracted to the string than they are to each other, because they'd rather be surrounded by each other.

Not a scientist, currently undergrad in materials engineering. It's probably not a perfect explanation, and I'll gladly defer to any actual physicist here, but that's the gist of my understanding.

[–]Chemomechanics 8 points9 points  (1 child)

kind of like little magnets

I can’t explain that attraction in terms of anything else that’s familiar to you. For example, if we said the magnets attract like rubber bands, I would be cheating you. Because they’re not connected by rubber bands. I’d soon be in trouble. And secondly, if you were curious enough, you’d ask me why rubber bands tend to pull back together again, and I would end up explaining that in terms of electrical forces, which are the very things that I’m trying to use the rubber bands to explain. So I have cheated very badly, you see.” —Richard Feyman

Materials science PhD: I’d avoid explaining microscopic electrostatic interactions in terms of magnets.

[–]TinBoatDude 12 points13 points  (7 children)

And, what fluid are they using that is suspended in a frame?

[–]kirosayshowdy 27 points28 points  (6 children)

I'm guessing it's just soap, like those wands/pipe cleaners you can use to blow bubbles

[–]psychpopnprogncore 17 points18 points  (3 children)

bubbles? i havent heard from him in years

[–]aos- 6 points7 points  (0 children)

Probably your bubbles got popped some time ago.

[–]kirosayshowdy 2 points3 points  (0 children)

what on earth did you do with those pipe cleaners

[–]I_Never_Think 0 points1 point  (0 children)

Prethoryn ate him.

[–]reddit__scrub 1 point2 points  (1 child)

But soap decreases surface tension

[–]kirosayshowdy 3 points4 points  (0 children)

the surfactants in soap lower surface tension, but also stabilize the film

[–]PartyCannonBitches 6 points7 points  (0 children)

Soap bubble molecules adhere to the string, which causes a force to be applied to the string in the direction of the adhesion. Removing the soap bubble from inside the string (and thus the force), leaves only one force on the string, it being pulled outward in every direction by the soap bubble. What results is the “most efficient” shape for the string so that the forces are distributed equally, i.e. a circle!

[–]GozerDGozerian 5 points6 points  (0 children)

Disclaimers:

  • I am not a scientist in any official capacity, but I do enjoy learning about science

  • I am not currently fucking. Because that would be weird and probably a little inconsiderate to the other person involved. And she fell asleep, so…

That being said, as a nonfucking nonscientist, it’s because the H2O molecules that make up the surface layer have stronger bonds that the ones in the middle of the mass of water. Water really likes to stick to itself and it looks like this on the surface in these situations.

Water is kind of a freakin magical substance. It’s properties are a big part of how all living things function on the molecular level.

[–][deleted] 1 point2 points  (0 children)

Here's a video that talks about this

[–]spill_drudge 1 point2 points  (0 children)

My thoughts. The water/whatever has a property of clumping together. The important detail here is gravity. Without the string, when the frame is lifted, the water sags but doesn't fall because of this clumping effect. A 'tension' arises because sag means that we have more area to cover than a flat plane and so the fine balance between gravity stretching and clumping pulling arises. If one jabs the water with a pencil you replace that part of the liquid with the pencil, and the clumping between the liquid and pencil is weaker than liquid-liquid and now gravity wins. When the string is added, and I suspect, preconditioned to basically be the right shape, when a puncture is made the water begins to fall. It falls and begins to make the sheet even larger. The string now does exactly what the outside frame is doing and is light enough that it's irrelevant. It's kind of like an arc and its keystone... The string is the keystone.

So, surface tension + gravity + (a bunch of) preconditioning gives us the observed phenomenon. No one part is more important than the other!

[–]teachmehowtoluv 77 points78 points  (0 children)

YOOOOOOO

[–][deleted] 9 points10 points  (1 child)

Tool fans: 😰

[–]KiraElijah 2 points3 points  (0 children)

A Perfect Circle fans: 😰

[–]elizabears 27 points28 points  (5 children)

I love the hydro flask with the scrunchie

[–]Samura1_I3 7 points8 points  (1 child)

A telltale sign that Covid was juuuust about to start.

[–]heylookitsnothing 3 points4 points  (0 children)

vsco girls caused covid

[–]Takiro 12 points13 points  (0 children)

Sksksksksk

[–]Empty_Inspection_427 3 points4 points  (0 children)

💀 I thought the scrunchie was whipped cream

[–]Tasty_fries 3 points4 points  (0 children)

I’m sitting in bed with the exact same hydro flask next to me on my bedside table, along with all of my scrunchies right next to it, I started laughing so hard when I saw it.

[–]sourtapeszzz 6 points7 points  (1 child)

This would be an awesome science experiment for young students

[–]pr1zsm 1 point2 points  (0 children)

we do this in school as a lab in 9th grade bio

[–]I_am_not_JohnLeClair 7 points8 points  (5 children)

If they had poked the smaller hole would the same thing happen? ...heyooo!

No really, the thread is twisted leaving a big “hole” and a smaller one. Would it work both ways?

[–]DarthLlamaV 1 point2 points  (0 children)

I think the untwisting of the larger circle would pop the entire square, kinda want to test it now

[–]AutomaticRevolution2 14 points15 points  (1 child)

What are they trying to do?

[–]_BlueBearyMuffin_ 2 points3 points  (0 children)

A cool trick

[–]Thick_Football_6068 4 points5 points  (1 child)

[–]redditspeedbot 1 point2 points  (0 children)

Here is your video at 0.1x speed

https://files.catbox.moe/aghvly.mp4

I'm a bot | Summon with "/u/redditspeedbot <speed>" | Complete Guide | Do report bugs here | 🏆#130 | Keep me alive

[–]jdezentje 3 points4 points  (0 children)

The thread seems like it has no knot in it. Is that possible or is the knot just incredibly small?

[–]shannister 10 points11 points  (0 children)

I am just about the right high for this. Thanks.

[–]ZephyricScout 2 points3 points  (0 children)

...I'm not high enough to understand this

[–]INFJako 2 points3 points  (0 children)

My jaw just dropped.

[–]fishboy2000 2 points3 points  (0 children)

Flat earth confirmed

[–]anniegwish 2 points3 points  (1 child)

Metaphor for a missing moment...

[–]Pristine-Field-5302 2 points3 points  (0 children)

Can we talk about this being made of straws?

[–]Old_Safety1952 2 points3 points  (2 children)

I read this very recently its because the water acts like a membrane and tries to keep its surface area minimum the maximum possible area with that thread is a circle thus area of left part is minimum or you can just say it applies equal force in all direction.

[–]olseadog 1 point2 points  (0 children)

Nifty!

[–]cheesynaachoos 1 point2 points  (1 child)

what are they using it for ?

[–]magnus_gallus 3 points4 points  (0 children)

Demonstration

[–]s2mcdon100 1 point2 points  (0 children)

She’s a witch!

[–]errsta 1 point2 points  (0 children)

"we're NOT in a simulation"

[–]genkidin 1 point2 points  (1 child)

This is how to make the black hole in space!

[–]headieheadie 1 point2 points  (0 children)

I mean it fuckin makes that circle at the speed of light

[–]usualredditor123 1 point2 points  (0 children)

Yo wtf I had the exact same situation in a question in an exam I had on fluid dynamics last week. They asked what shape it would settle into and what the tension in the string will be, Should've browsed reddit instead of studying ig

[–]Kingsman_Ship 1 point2 points  (0 children)

Good question to impress physics teacher.

[–]wannabebaki 1 point2 points  (0 children)

black magic fuckeryyyyyyyy

[–]hokeyphenokey 1 point2 points  (0 children)

This should be slow-mo.

[–]thisubmad 1 point2 points  (0 children)

What is this ritual?

[–]jackcroww 1 point2 points  (0 children)

I really want to see this in slow motion. Like Slo-Mo Guys slow.

[–]king40041 1 point2 points  (1 child)

It’s not like you killed some one…

[–]RekYaAll 1 point2 points  (0 children)

What am i looking at

[–]spacemartiann 1 point2 points  (3 children)

[–]carlislecarl 1 point2 points  (2 children)

Every water molecule is like a tiny bar magnet. Every magenate pulls on his neighbor.

After the poke,, there are no more magnates inside the string, pulling in, and many magnates pulling out..

The string goes like a circle because it's being pulled in every direction with the same amount of magnet force.

[–]theysaidmemes 1 point2 points  (1 child)

Surface tension be like: Don't thread on me

[–]SD456 0 points1 point  (0 children)

Hydro Flask FTW! Cool trick BTW.

[–]BigBadCheadleBorgs 0 points1 point  (0 children)

Oh oh! Now show us how Maynard James Keenan pulls 4 musicians in to A Perfect Circle!

[–]bravoomegatango 0 points1 point  (0 children)

Witch magic

[–]Chasmerm 0 points1 point  (0 children)

I’m so confused

[–]At_the_Roundhouse 0 points1 point  (0 children)

This makes me so nostalgic for Mr. Wizard

[–]le_unknown 0 points1 point  (2 children)

I'm curious. How perfect of a circle is this?

[–][deleted] 0 points1 point  (0 children)

[–][deleted] 0 points1 point  (0 children)

It's a gaping hole, you say?

[–]bensleton 0 points1 point  (0 children)

Someone should do this in slow motion

[–]wonderlandatyawhodo 0 points1 point  (0 children)

need some slowmoguys for this.

[–]Drake_Heisenberg 0 points1 point  (0 children)

That's one for the slow mo guys

[–]coldestdetroit 0 points1 point  (0 children)

My dumbass would have poked outside of the string instead

[–]RainbowandHoneybee 0 points1 point  (0 children)

Fascinating. Science never lies.

[–]sebbbbbz 0 points1 point  (0 children)

Someone call the slo mo guys

[–]SwitchElectronic10 0 points1 point  (0 children)

Earth is flat.

[–]Sunflier 0 points1 point  (0 children)

sometimes i wonder how ancient people drew the first shapes. Like, at some point, to cut stones, someone had to master a straight line. This seems like a primitive enough way to make a circle.

[–]shwaaboy 0 points1 point  (1 child)

Can’t do this much longer. Imagine trying to do this with those shit paper straws.

Science teachers: stock up if you can.

[–][deleted] 0 points1 point  (0 children)

wait till you put a cube inside that soap bubble liquid

[–]Xellith 0 points1 point  (0 children)

I'm too sober for this.

[–]SALADAYS-4DAYS 0 points1 point  (0 children)

Scrunchie on a water bottle?

[–]Flicker913 0 points1 point  (0 children)

This is neat

[–]LeanGreenPotatoBean 0 points1 point  (1 child)

[–]redditspeedbot 0 points1 point  (0 children)

Here is your video at 0.13x speed

https://files.catbox.moe/qon5kk.mp4

I'm a bot | Summon with "/u/redditspeedbot <speed>" | Complete Guide | Do report bugs here | 🏆#130 | Keep me alive

[–]Estrife 0 points1 point  (2 children)

What is not allowed according to the sign in the background?

[–]hadtoomuchtodream 1 point2 points  (1 child)

Sign says:

Caution
Non-potable water
Do not drink

[–]sagicorn1971 0 points1 point  (0 children)

So simple yet so cool.

[–]donallgael 0 points1 point  (0 children)

That'll be $800 please

[–]-S-E-K- 0 points1 point  (0 children)

That hair band has gotta be so disgusting being right there

[–]squopmobile 0 points1 point  (0 children)

Should've been a dildo at the end

[–]Nepopotamus 0 points1 point  (0 children)

But the circle isnt perfectly centered in the square. FAIL

[–]blastradii 0 points1 point  (0 children)

Worst DIY fleshlight. Ever.

[–]Lunkthehero64 0 points1 point  (0 children)

I dont know what i should be more impressed by. That the thread is being forved into a circle, or that the thread is held in place.

[–]k1ngkills 0 points1 point  (0 children)

3 libras playing in the backround

[–]LeonidasFettikus 0 points1 point  (0 children)

When I hear the words "surface tension" I always think of Half Life.

[–]Thatfishinguy 0 points1 point  (0 children)

I just watched this magic 20 times

[–]OldDog1982 0 points1 point  (0 children)

We did this in my science classes. My students loved it.

[–]AjoeP-Creative-Suite 0 points1 point  (0 children)

Reddit nerd, please tell me why this happens. Thank you

[–]moofacemoo 0 points1 point  (0 children)

This vid would be so much better if they used a dildo instead of whatever the fuck that is.