This Tesla Valve Straw Only Works In One Direction

In this video I show you a straw that is made as a tesla valve. I talk about what a tesla valve is and how it works as a one way flow valve. I also talk about what tesla might have used the valve for in his work.
Tesla Valve Straw .STL file:www.thingiverse.com/thing:305...
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*Any experiment you try is at YOUR OWN RISK. The Action Lab assumes no responsibility for any injury if you attempt anything you see in this video or on The Action Lab channel.

[@crobodile]

“Can I have some of your drink?” “Yeah just flip the straw over to the side I didn’t put my lips on.”

[@vanterbaba4110]

Oh thats so smart... SHUT UP AND TAKE MY MONEY I WANT MY DRINK FOR MYSELF

[@jahm0vetact]

LMFAOAO

[@RyanSmith-wc7ku]

@@vanterbaba4110 what if they just don't flip it over-

[@Demian1]

Lmaoooooooooo

[@newcatvideos3306]

Story of my life

[@shadowlord0162]

"is it harder to suck in one direction than the other" looking at my life choices i suck in both directions

[@atriyakoller136]

Look at the bright side (not the KZbin channel though)! You're a human, not a Tesla valve then

[@shadowlord0162]

@@atriyakoller136 i guess thats a good thing

[@Incognito-rb4tz]

@@shadowlord0162 or is it? *_vsauce music intensifies_

[@rgerber]

glorious 👌

[@shadowlord0162]

@@rgerber thank you

[@falconeio]

I'd love to see this done with a clear version and colored fluid, so we can see how it's actually flowing inside.

[@mathewking1559]

And then get a nice slow motion when you change out the dye so you can see the colliding fluids

[@falconeio]

@@mathewking1559 I smell collaboration with the Slow Mo Guys

[@tylorban]

Yeah and also clear the fluid between tests

[@daxroger3075]

My exact thought.

[@andym5195]

youd need some glitter or somet to see the vortices

[@kibbiking9122]

A one-way straw would be useful if you're sharing a drink from the same cup because the valve at the end of the straw makes sure no liquid being sipped goes back into the drink.

[@HogEnjoyer]

I mean I guess that idea would be useful in that niche circumstance but that’s not how this straw works. It’s only works one way meaning if you flip the straw it won’t work, the liquid still flows in and out like any normal straw when using it the right way up.

[@kibbiking9122]

@@HogEnjoyer I think there are other valves which you could use that completely stops liquid from flowing back out. Also, a valve which stops all liquid from flowing back out also ensures that the drink is always at the top of the straw, so you don't spend energy sucking air before the liquid arrives. This is useful for people who have respritory challenges and have trouble sucking.

[@wraiz8563]

it wouldn't lmao, just keep sucking while taking the straw out of the liquid

[@clickthecreeper9463]

sure, but also if you actually take germ theory into consideration the negligible amount of spit shared with a regular straw is entirely unlikely to get you sick in any way.

[@azisalive4972]

I'd prefer my own straw, cheers

[@kamo7293]

A clear version would be even better if it's possible then we could see the fluid impeding itself

[@abdalnablse10]

Yes

[@ethandaley10]

Ye

[@i_cam]

Y

[@Mustaali1]

‏‏‎

[@alorasky6147]

Y

[@loganpedersen9906]

“Why would you want a one way straw?” So the kids don’t blow bubbles in their drinks

[@kristenstreck7508]

My exact thought.

[@nerdup1238]

Flip it upside down and blow out

[@BESTofAlp]

blowing bubbles is fun!

[@gamtheobbiest7945]

It’s more fun than drinking it normally

[@haram69187]

What if they turn it.......its big brain time

[@devonfarmer3438]

The reason(other than it being ineffective) we don't use valves like that in the plumbing trades is because mostly due to how difficult it would be to service, and build up of debris would be awful

[@davidtuchscherer6276]

Also because they're obviously quite ineffective....

[@wbeaty]

@@davidtuchscherer6276 But does it still work at extremely high frequency? Even ultrasonic? It may still work fine in conditions where all other valves will fail. INSIGHT! With "Reynolds number," ...whenever operated at very low speeds, the fwd and rev flows should be identical, (when very slow, or also when using viscous syrup.) The Valvular Conduit requires high-inertia fluids in order to produce its little fluid jets, and to behave as a diode. (The "vortices" are in fact small fluid jets, either flowing in parallel or colliding opposite. Fluid jets are created by vortex-shedding.) If the valve converts alternating fluid flows in to "DC," does it also convert sound into constant pressures, or even convert sound into wind? Test it with incense smoke, plus music. Put it into your bathtub. Vibrate the water, or maybe play loud music, or simply yell at it. Does the Tesla Straw start swimming? Powered by fluid propulsion? . In terms of fluid jets, the Tesla Valve is a long stack of NAND gates, where two jets are aimed towards each other. They collide, producing a "logic low" of near-halted flow. But in the "good" direction, the two fluid jets are aimed in the same direction, producing a logic function AND, with a "logic high" maximum flow output.

[@thrasher2344]

I think if you used a constant pressure feed you would possibly see more of a difference because gravity just pulls the fluid downward and fills the loop and flows to the next. If it were flat on a table perhaps it could build up more backpressure. I don't think it created any back pressure there.

[@auralynn3862]

"Why would you want a one-way straw?" For sharing a drink. *Shudders at backwash*

[@KILLRXNOEVIRUS]

AHHHHHHH

[@stormiepeterson2943]

This is what I said or also for a kid who blows bubbles into their drink and making messes. 😂

[@gregorysharp]

Nothing like sharing with your child. Chewed pizza floating in your cola.

[@284mbp]

there's a literal pandemic now, i can't imagine sharing any surface where people are putting their mouths on it.

[@atriyakoller136]

@@284mbp maybe if both people have their own one-way straws?

[@prathameshdeshmukh9530]

Now combine all valves for ultimate blockage.

[@Abid_Ibn_Ashraf]

I think, we have to combine all '"you'" kind of commenter to get a critical comment of level '"infinity'"

[@lovingcapacitors8382]

@@Abid_Ibn_Ashraf better than original comment

[@ManjitKaur-lm9sj]

lol

[@bitsandbytes1s0s]

Or just use a cork

[@Lillylafrog]

Ah so when one breaks it has a backup, smart

[@draculakickyourass]

Actually it turns up to be an excellent noise supressor . I found that being a kid in the 80's when i visited the military ship where my father was chief engineer. The romanian military ships on the Danube had that on the engine's exhaust, it was made in pairs of loops,so the tipical diesel engine noise was silenced. At the exhaust tube could be seen smoke coming out in uniform flow but without the noise.

[@Riverbend1752]

I could see a one-way straw being useful when drinking something carbonated. When I have a regular straw in a carbonated drink, the bubbles adhere to the straw and pull it up, sometimes enough that it falls out of the cup. If there were a one-way valve, the weight of the liquid in the straw may help reduce the floatation from the bubbles, thus helping keep the straw in the drink.

[@L3GioG57A]

4:14 “I can still get it, but it is a lot harder. I can barely get any water unless I suck hard. This way, it comes right in.”

[@willywocker1086]

“So its hard to tell how much im actually getting in my mouth”

[@xjessee7x210]

PAWSEEEEEEE

[@iamelite20]

U are ct ik silver ct

[@rickylafleur5823]

especially with his flamboyant voice.. dude def has experience.

[@alexdonnell6921]

thats what she said

[@dwarfganon6900]

TAL:As you can see, no water is coming out... Water: *Is coming out*

[@cutiebunnyamber3447]

no

[@Woodledude]

That's not water, that's... Drops. It's different.

[@KaitiKat216]

@@Woodledude well, they are drops of *water.*

[@Woodledude]

@@KaitiKat216 *covers your mouth and pulls you aside* Hey, hey, shh, take it easy. Listen, stay quiet about this, and we'll make sure you're taken care of... *slips a dollar into your pocket*

[@tripodgamer]

@@Woodledude dude that’s kinda sus

[@arielreynante8795]

My question is if it impeads the flow of air enough to discourage a child from blowing bubbles

[@EggsBenedict1]

Probably yea

[@amaangaur3850]

1:15 the moment i thought he'd now surely mention Tricuspid and Bicuspid Valve too

[@russ_carspotta]

Science dude: "and no water comes out" water:*drip*

[@jaredhared]

It resists water it doesnt repel it

[@russ_carspotta]

@@jaredhared Ik but what he said is the reason I said it

[@jaredhared]

@@russ_carspotta ah i see

[@russ_carspotta]

haha u will never know what i said before

[@rickylafleur5823]

@@russ_carspotta yup.. a leaking one way valve is a faulty one. so no, it does not work lol.

[@fenrisredacted2870]

Is this why Half-Life 3 hasn't released yet? It's going the wrong way through the valve?

[@hugohum6346]

underrated comment

[@ududydhjsus]

ikr

[@MR-pt7ou]

stupid and not funny

[@ududydhjsus]

@@MR-pt7ou rude.

[@imsnakepancake8539]

i meann half life alyx is out sooooo

[@ge7647]

"Why on earth you want to buy 1 way straw" Good Point

[@earthlingdad]

This is my favorite science channel. I must be the only subscriber that didn't know you are a doctor. You earned a doctorate in Chemical Engineering. Not many PhD's with a popular KZbin channel. Please don't stop educating us. This is also my son's favorite science channel.

[@quintenvermeulen4576]

The action lab: *uploads a video about the Tesla valve* Integza: *heavy breathing*

[@Ashreen_ofccc]

Haha

[@SciNonFi]

YEESSSS!!!!

[@Chryoss]

Thought the same xD

[@raulrblx3200]

Who ruined The 69 likes

[@antoniodelcogliano2182]

YES

[@mikvance]

"It works when you suck in one direction, but not the other." Literally what I've been telling her this entire time.

[@VanQuoc-qh6qy]

Lol bro u the best haha. Im laughing like hell.

[@herobrine1847]

What do you mean sucking in another direction

[@KILLRXNOEVIRUS]

@@herobrine1847 Blowing smh

[@yaryort6134]

@@ProdEXTWO 😂🤣 prolly like, 13

[@SoapMcCallister]

@@herobrine1847 bruh

[@Evan102030]

I just learned about this yesterday. The mind of Tesla was simply amazing, the way he was able to visualize nature is mind blowing.

[@likearockcm]

After watching 2 other videos this one is the only one that explained it in "simple" terms !!

[@shhh7857]

This whole video is a “that’s what she said” joke

[@savagebros9085]

I was gonna put don’t be gutter minded in the comments too😭

[@NikoxNobu]

Read your comment just as he was mentioning the ball check valve, gave me a chuckle

[@davybastiansaputra]

I don't understand

[@capo4742]

Underrated Coment

[@clover-il7tf]

🤦‍♀️

[@caliberwhips9595]

I glanced at the title and thought for a sec Tesla was now making straws

[@TNXaro]

Me too, lol

[@Q--_--90909]

I thought that also.

[@flare_studios.]

$420 a straw

[@Ishan716]

At this point, wouldn't be surprised if it did.

[@gabrieltavares774]

@Pablo Andres Aguilar Mendez exactly

[@michaelperreault184]

From your explanation, it makes sense that it is made for higher frequencies since the turbulence will peak when the state changes. Once you reach a permanent regime the turbulence will be much lower and yhe fluid will ho through much more easily. Both the shape and the principles remind me very much of a coil in the electrical field.

[@Magic.Pixie.Dreamgirl]

I enjoy your videos. You have such passion for science!

[@hansimansi7702]

4:20 what a legendary timestamp and what a legendary quote

[@aromanticfranziskavonkarma]

-Oh god lmfao-

[@prodlowkeen]

searched for that comment and found it

[@constantin26]

@@prodlowkeen same lmao

[@HIBA_DA_LOLICON]

and it's 420 noice

[@lucidmlem]

69 likes too

[@Zeedius]

"Why would you want a one way straw?" Time-efficiency, imagine all those seconds you'll save just by having the fluid ready to flow into your mouth, without it needing to climb the whole straw.

[@Andreadel96]

Genius.

[@mickymoist]

One-Way Straws make drinking easier for individuals with a weak suck, oral motor difficulties, and/or problems generating and maintaining suction.

[@falalogo]

@@mickymoist And stop kids that blow on the straw to make bubles

[@tannernotter3857]

And to stop kids from blowing bubbles in their damned drink!!!

[@darwisyaiman1865]

Usefull to empty the cup maybe?

[@cameronrutten6483]

this valve works best horizontally without suction or pressure from either end the valve however works really well with higher levels of flow (not pressure)

[@keysejkeysej]

I think the sharpnes of edge inside and quality of tesla's valve are important. Second topic it's speed of fluid (gas it's also a fluid) if you use it as dynamic part for example in rocket engine as fuel pipe or other it can be ok. Also in (as you said in video) in changeable flow with high freq. changes. This valve can also work as some kind of pump (or part of the pump).

[@Spherey]

1:20 this is basically me trying to prioritize my thoughts with adhd symptoms but my thoughts just end up being a mess

[@KILLRXNOEVIRUS]

Almost like the *exaggerated swagger of a black teen*

[@justswift5369]

@@KILLRXNOEVIRUS gives me goosebumps

[@thejchristopher]

4:20 that’s what she said

[@ANTSEMUT1]

Lol.

[@Jayerbruh]

420 funny number

[@jessepinkman4447]

Not to me! 😂😂😂😂😳😳😳😳😳😳😂😂😂

[@olivermitchell7526]

I thought of that then looked in the comments

[@whatthefridge1o1]

Nice

[@DanielHodgeVoice]

Tesla: "We have made the straw less efficient." Me: ""A Trend of yours I've noticed."

[@dragonsbreath389]

Different tesla man

[@Immfi]

DragonsBreath38 r/wooosh

[@dragonsbreath389]

@@Immfi no.... its not as you can see multiple different people have said the same thing

[@JoeC26]

I didn't know Tesla and Valve had a cooperation together, this is incredible

[@CarolinaGunGuy]

"...but then, no water comes out." *Water drips out.* 😆

[@railx2005]

Ikr lmao

[@00WatName00]

Well he _did_ say "It doesn't completely block flow in one direction, it just increases resistance"...

[@rickylafleur5823]

@@00WatName00 yea but a one-way valve completely blocks flow in one direction. it's called a fail.

[@PanD0rA_]

“No water comes out” The water coming out: *I serve no purpose*

[@nativeoutdoors1780]

This guy is way cool, like he is obviously very educated and can grasp many obscure topics, but unlike some other youtube science channels, he doesn't act like he needs to show people how smart he is, instead its like he wants to help others to also get excited and learn, which I think is pretty cool

[@batmanlikespizza2541]

Thank you for making this type of content.

[@Willyknightka]

So many opportunities to say: that’s what she said... but I’m mature now, and didn’t want to

[@The.throngler]

That's what he said

[@supernova719]

And now you have 69 likes. Nice

[@Willyknightka]

@@supernova719 Lmaoo😂😂

[@supernova719]

And now it's ruined. No more funny sex joke :(

[@Rachara]

Your mom wanted to.

[@lucifersdevilishdetails.]

my niece annoyed me and her mother when she blow bubbles in her drinks so a one way draw would help stop that.

[@KILLRXNOEVIRUS]

😂😂😂😂

[@Randomdudefromtheinternet]

This is probably why this straw was invented, it's true purpose lmao

[@Rose-ec6he]

I too vouch for a one way drawer

[@nihaalspeaks]

Air can still travel through perfect

[@imeleventeen]

@@nihaalspeaks no it can’t. It works the same way

[@guyfrunknown]

I'm curious if there is an exponential increase or decrease in resistance if pressure is applied on either end of the valve.

[@Kartik-mz7sk]

you did a very hard job with the black tesla straw upside down......... i'm impressed

[@homomorphic]

I don't know how many times I've put a straw in my beverage upside down and said to myself "it is so very annoying that this straw works upside down". This problem is now solved.

[@heyyatif6062]

So you're saying that everything Tesla made was just astonishing revolutionary 🎊🤯

[@merlinmantikur1338]

Always has been😂

[@Ahayeahishere]

Actually hes saying that this invention is not really usefull

[@andricode]

@@Ahayeahishere But thanks to it, we perfected the design

[@DrCrunkMusic]

It was useful in its day, clever mechanical solutions to age old problems. Another principle of this are the viaducts the Romans built to provide clean running water to their cities way before the invention of pumps.

[@pelufaz8435]

Not a lot of people are as smart as Tesla

[@deilusi]

I think similar designs with resistive but not restrictive flows are used in gearboxes in cars, and in general inside of high speed mechanical parts, mostly in combustion engines. There was also use inside microbiology, as some of those things are just too small for anything mentioned earlier.

[@eSSentialplaysYT]

"Is it harder to suck in one direction, than the other?" Activision-Blizzard.

[@dimitrilepain3821]

LeL

[@rorschacht8478]

Bur

[@samjefferson3473]

as an employee can confirm

[@sufferdroid]

True story

[@nihalariyawansha6150]

Can you show how gas flowing through the tesla valve. Using ballon or something like that..

[@Solotocius]

5:43 He's drinking either blue fanta or literally a cleaning chemical (I wouldn't be surprised if option 2 was the case)

[@Bijlez]

Or water with food coloring in it

[@Solotocius]

@@Bijlez or cyanide lol who knows

[@hemantbshanbhag6104]

Kerosin

[@craigcorson3036]

@@hemantbshanbhag6104 In English, we spell it "kerosene". No sweat; from your name I'm assuming that English isn't your first language. I just thought you'd want to know.

[@Solotocius]

@@hemantbshanbhag6104 yumm

[@jm.5821]

very good contribution, thank you!

[@bernhardtmitdt2586]

Very good explanation using the small ball - does not need and knowledge about physics. Thank you!

[@weignerg]

You could use a combination of the valve types to improve longevity of the valve's maintenance for the moving parts when high pressures are involved.

[@alextunneyware]

When I saw this in my recommendations and saw 'one direction', I actually thought it meant something along the lines of 'you have to face north to use this straw' XD

[@Oscar-vs5yw]

That would actually be really cool and probably useful aswell!

[@TAGombie]

@@Oscar-vs5yw how would that be useful

[@Oscar-vs5yw]

@@TAGombie magnetless compass

[@cupriferouscatalyst3708]

@@Oscar-vs5yw Now I'm curious, what would be the benefit of a magnetless compass? I'm sure there has to be one but I don't know enough about magnets to think of anything. Do they interfere with electronics maybe?

[@CaptBucket]

Honestly just glad it exists. Who knows, a practical application could come up in the future. Just like how not all simple machines all used all the time.

[@audigex]

They’re already used as a non-mechanical (no moving parts to break) backflow limiter

[@mikelujanable]

Perfect to share drinks on a first date, how great to share a shake, safely.

[@demagab]

6:00 I have that exact check valve for my fish tank aerator. We added that valve after the tank decided, one night, to empty itself all on the floor and eventually leaking downstairs

[@Bob3D2000]

6:08 People who don't want their spit to flow down the straw into the drink they're sharing with someone else.

[@dookie3453]

The other person will still drink your spit as it is in the straw

[@Indee___]

@@dookie3453 Do you share straws with people??? do you not just get two straws???

[@dookie3453]

@@Indee___ lmao I have no idea why I thought someone would share one of these straws or any straw just wrote that comment quickly

[@physicsisawesome696]

@@dookie3453 lol

[@paulaccuardi9071]

@@Indee___ the problem is the backwash going back into the drink

[@houckyy4530]

Not sure if you mentioned this in the video, you could use a tesla valve to regulate how much fluid flows by slowing it down based upon the number of loops. Just a thought?

[@iseraid1504]

5:39 "For example I just put a one way valve on a straw here" *starts drinking antifreeze*

[@carlrichie2012]

Woooooo early to science for the first time in my life

[@rushunnhfernandes]

😅

[@EthanWinter-]

In your first few days of life you were early science

[@gearslayer-vn3gz]

Me 2 haha

[@carlrichie2012]

@@EthanWinter- 😂😂😂

[@henrygrace3643]

lol

[@n4ss]

“it flows better in one direction” *turns to my girl*

[@piday9633]

*nonexistent*

[@itsdalion6612]

What's a "girl"

[@spiffybeaver4764]

@@itsdalion6612 idk, never heard of that before, too

[@DumbassUsername]

Im more of a visual learner.

[@wolfyviking4692]

I have made a muffler for a truck, it works great but only us one loop back. You should try it too remember to put glass packaging in the loop

[@PrometheoNTG]

I suspect that you may be able to make a more effective tesla valve with some refinement on your manufacturing of the straw version. Still nice that you were able to measure an increase in resistance with a relatively crude one!

[@horseradish0911]

1:07 wow it's amazing how he could name all of them from memory

[@lessthanahome]

Cuz they all used to be names for his bhole

[@_Cfocus]

probably have a paper right in front of him of what he is going to do and what he should say its just hidden everyone does that

[@horseradish0911]

@@_Cfocus i know...

[@pirobot668beta]

The 'Tesla valvular conduit' was part of a larger system. He needed a flow bias; easier flow one way, more resistance the other. Part of how it worked so well in his application was the pulsing nature of the flow through the 'valve'. The pulsing leads to pressure and temperature gradients in the conduit; the heavy slab walls of the conduit acted like heat-sinks and to pre-heat incoming air. It was to be the inlet valve for a type of large pulse-jet engine... The flow bias kept pressure spikes in the combustion chamber while allowing smoothly flowing inlet air. The comprehensibility of air makes a sort of spring to absorb the 'bumps'. ... That is one aspect of how Tesla worked; the final use of any one part was not always apparent. His infamous 'death ray machine' was never presented all at once; he left a trail of bread-crumbs throughout the US patent system.

[@hadriscus]

So cool ! (By the way, the singular of vortices is a vortex, much like a vertex becomes two vertices)

[@LachlanKadick]

Cost wise, in some situations, would it reduce the cost of valve replacements, since it reduces the strain and thus the type of valve needed?

[@utalis47]

it would be a good concept for a fluid pump (for water)working much like a check valve does,but as a straw it would be very hard to clean and get bacteria out.

[@La_Pucelle_dOrleans]

There’s better valves for that

[@rayalexander2281]

Bruh, tesla is soo famos he has a straw named after him

[@VallimMotta]

Elon musk is flying😎😎

[@s1bh4mgodfl3shx]

Cuz he made it?

[@dragonare715]

He named it after him Every scientist names shit they discovered Mostly every scientists that name something after them I consider a narcissists

[@itsarin2166]

@@dragonare715 its either the inventor named it himself or the inventor is known as the one inventing it so people is using the inventor name to call that certain invention.

[@dragonare715]

@@itsarin2166 yeah... I had a stroke while reading this

[@professorracc.9780]

a seethrough one of these would be cool

[@GatCat]

I really appreciate this guy.

[@Nedeles]

"It took a lot longer" Reality: 5s more

[@KaiSoDaM]

50%

[@monasimp87]

1.5x longer so like imagine a 1hr movie but it takes 30minutes to load the movie in the middle it is just irritating

[@hofung614]

yea im like hUh

[@holdthisforme8235]

In comparison lmao.

[@orderofthesnack5558]

It wasn't even really 5 second more, when he did it the right way he flipped it and started the clock so its already gonna be a second behind then he stopped it as soon at it left the syringe but not the straw as shown by water still coming out, he stopped the timer at 11 and said "10". Then for when he flipped it the wrong way he flipped it then started the timer, same thing he did to the first one, but this time he waited for all the water to be gone from the straw before stopping it. idk, I get the experiment but like I get that its gonna be slower but come on what you do to one side you need to do to the other to make it a fair test, might just be and I easily could just be blind as a bat and he may have stopped it after the water left the straw in the first one but from my perspective its not also I need to get a life just typed out this whole thing about something I could easily be wrong about just cuz.

[@roughwoof]

*I can make a lot of "that's what she said" jokes, but that would be taking the easy Road.*

[@KarstenJohansson]

Easy? That's what she said.

[@WolfPackGameing]

a one way straw is used in the water pack that hikers and military use, it keeps water in the straw right away, but also keeps it from leaking by using it with another one way valve

[@ruankoen5947]

Its really a smart concept.. it just needs more work

[@masquerade1954]

Im a bit too dirty minded for today's episode

[@ranmindyt2902]

Bruh

[@Spherey]

uhm

[@masterplayer5982]

What do you mean?

[@ih87p84]

Same

[@theaslam9758]

@@masterplayer5982 trust me, you don’t want to know

[@hong4033]

This man just ingested thousands of microplastics by drinking from that straw.

[@izaacpitt9885]

Wdym

[@IDK-yx2lr]

tasty

[@yosyp5905]

pure PLA is *technically* food safe since it's made from corn starch, but obviously many compnies put dangerous additives in. Still, you ingest tons of microplastic every day, this little test is almost nothing compared to what our body has to sustain.

[@eathanbertrand1301]

@@yosyp5905 they probably knew about all yhe microplastics and wasshed it out before hand.

[@yosyp5905]

@@eathanbertrand1301 Washing does close to nothing, it gets rid to the mostly free, big particles, but microplastic is not that

[@metalink137]

the one way pick up is often used to keep pumps primed for when they start up on their next cycle

[@EDHCards]

This type of straw would be great for people who are unable to drink through a normal straw (perhaps because of a medical condition). Great video 👍

[@vesa7069]

A one way straw would keep your straw from floating up and out of the bottle, glass or can as it stays filled with the liquid.

[@vasiliansotirov6976]

a normal straw wouldn't float either because levels would be equalized

[@vesa7069]

@@vasiliansotirov6976 You've never used a straw now have you?

[@krsgopalan]

@The Action Lab - The time taken would be more than 15 seconds on the wrong side if you had the straw on the top of the container. By having the opening of the container at the bottom will ensure that the liquid in the container seeks its own level on the straw as well so that by the time you flip the straw down, its already half filled thus making the water flow easier. if you still want to keep the opening of the water container downwards, the tube connecting to the straw needs to be longer so that you can hold the one way straw higher than the container so that the liquid does not get into the straw initially making your experiment accurate to measure the actual time taken for the liquids to pass through the straw on both sides.

[@liveuk]

If you see smoke going past a Chimney or any tall cylinder on the down wind side you see the valve pattern very clearly and the resiance on the cylinder makes them shake apart. Many tall Chimney come down its that frequency Telsa saw everywhere as many people do as it's all around us in everything.

[@gormdenorm678]

The reason to use a one-way straw is so that the straw keeps being down in the drink. The problem with real straws is that when you are not sucking and the tube gets filled with air the straw has a tendency to bounce up from the water and out of the drink. But with the one-way straw as we saw in the video the straw is filled with liquid and therefore not bounce out of the drink. *Big-Brain straw time*

[@jordantoon4270]

you sir/madam in a less techical way to putting it as i did have the rigth idea.

[@Sclonez]

It would be interesting to film a transparent Tesla valve with a colorful liquid to visualize how it works.

[@deco3334]

5:35, ooow that’s some pretty fresh water you have there

[@brochoa4097]

Tesla had plans to use this VALVUlAR conduit. He intended to use this in an osillating pump. It's an amazing design.

[@isaacdowning5315]

I work in a care home, we use one way straws to help clients who struggle to drink from a cup because of their dementia and don't have the suction to use a regular straw

[@isaace436]

A one way straw and one way tubes like you showed are important for various medical applications, you don't want to have liquids going both directions in certain operations and needs, like a feeding tube or breathing tube.

[@BirbBoiYT]

"Yeah, that's a normal straw" ...

[@Meevious]

1-way straw means you can share drinks without contracting contagions etc (or simply drinking other people's spit). It's a super idea. As for the Tesla valve, wouldn't it be more effective the longer and thinner it is? There's a point at which water can't overcome friction and travel through a pipe, so I'd guess that by adding impedance in just one direction, it should be possible to make a pipe that is too long and thin for one direction of travel, but not the other.

[@BoWeava]

Cool resistiodepacitor bro!

[@shashwat4920]

*Action Lab: Tesla valve straw* Me: Elon Musk??😂

[@biem7091]

???

[@EQINOX187]

Don't give Musk another idea to steal and claim he thought of / invented

[@shashwat4920]

@@EQINOX187 😂😂

[@victorvitruk6838]

The ball rolling 2:55 reminds me of those spherical toys with a large 3d maze inside and you have to try and reach the end with a ball without letting it fall out

[@wierdlookingfoot8683]

I had a teacher that had one. I cheated and just flipped it into the little hole.

[@Benbim]

Heard about this valve and was not sure how it worked but sounded very interesting as no moving parts. Thanks to you have seen an example and perfectly explained with the ball bearing. By the way Nicolai Tesla not Nicolas. Sorry to be pedantic.

[@sroy7982]

The most fascinating word I learned in this video "Ball check valve"

[@patrickpablo217]

does it work differently if the straw is totally full of liquid vs having air pockets in the loops?

[@isaacwykstra2059]

4:24 just close your eyes and listen for the next few seconds

[@mattlogue1300]

He he

[@dkdanis1340]

7:41 there's many moving things that work great just needs to be made for that. 8:16 just can make check valves that don't wear out there's plenty check valves that last like rest of the system and tesla valve can still get worn if not made properly by high hot fluids and gases.

[@matheusbee3441]

There is no denial of the biggest truth regarding machines and mechanical parts. The more moving parts implemented in a design, the more expensive and prone to failure it becomes.

[@3km143]

You're telling me that, unexpectedly, Tesla and Valve made a Collab to make........ .......A straw