How to Make Low Pressures with a Capillary tube
Вставка
- Опубліковано 27 кві 2020
- In this video I show you how capillaries can decrease the pressure in a liquid well below an absolute vacuum if they are small enough
Veritasium Video on Trees: • How Trees Bend the Law...
Checkout my experiment book: amzn.to/2Wf07x1
Follow me on Twitter: / theactionlabman
Facebook: / theactionlabofficial
Instagram: / therealactionlab
Watch other popular videos from my channel
Shooting a Nerf Gun Backwards While Driving At The Bullet's Speed Forward
• Shooting a Nerf Gun Ba...
Superhydrophobic Knife Slices Water Drops in Half
• Superhydrophobic Knife...
Real-Life Invisibility Cloak Can Hide Anything! How Does It Work?
• Real-Life Invisibility...
What's Inside the Worlds' Fastest Heat Conductor?
• What's Inside the Worl...
Can You Use Umbrellas Instead of a Parachute?
• Can You Use Umbrellas ...
Opening a Bottle of Liquid Nitrogen Under Water!
• Opening a Bottle of Li...
Warning: DO NOT TRY-Seeing How Close I Can Get To a Drop of Neutrons
• Warning: DO NOT TRY-Se...
*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. - Розваги
I have a feeling that he's slowly revealing his superpowers...
yes
If I were to be serious for once, I just wanted to say that your video ideas are always creative and fascinating.
Why are you here
oh it's you
Mumbo is also is missing his Original moustache
where's your brother
👋👋👋👋👋
I must say that lower pressure sucks.
I am a strong man.
but that thing
( *James's un-even mustache* )
it scares me.
Okay, so I'm not the only one who noticed that.
Hey! He can’t go to the barbers okay
My handle bars screamed when I saw that
Because it's not a moustache, it's what's controlling the main body you know as 'James'
Have you tried filling it until the capillary tube overflows but attaching another tube that feeds the overflow back into the large fill chamber. Would that cause a constant motion of it flowing into the fill chamber as it is pulled through the overflow tube via gravity and vaccum and capillary action forces all working in unison?
wow that kind of blew my mind, now i must bother my prof during office hours and see what he says
This was one of your best videos man. Thanks for posting!
Loved this video, loved the veritasium video as well, thanks dude.
well, the meniscus are formed due to the adhesion forces and the surfacw tension of the liquid, which it was mentioned in the later part
but when the meniscus was mentioned first time( in case of the capillary tube), it is not due to the pressure difference but due to same reasons stated above
that's why water will always form a conclave meniscus with glass containers irrespective of any pressure difference
exactly what I'm thinking
And mercury forms convex
But again the minscus has that shape becuase of pascals law that force acting is perpendicular to fluids
If you kept pouring it would the small tube overflow? If so could you run it back into the big tube and have a perpetual machine?
Next video:
"Honey! Now the neighbour is drinking from a ten meter long straw!"
Another great informative video and, THANKS for no distracting background music.
I think Veratasium made a video for trees and negative pressure. Very cool.
Wonderful analogy
i love this presentation of yours showing the capillary action phenomenon.
He really should start another channel where he teaches actually interesting chemistry and/or physics classes for high school students
Hello!! Great video!!
Woo super nice experiment
@The Action Lab Wow cool thanks! After I first learned about hydrostatic pressure, it always bothered me how water could push down on the water below while adhering to the side in extremely thin tubes. This explains that quite nicely!
Interesting content as always. Thumbs UP.
Awesome explanation ♥️👏👏👏
Nice video thnx for sharing! 👍
As I watched it, I kept thinking of veritas' tree video. Your explanation is simpler but better. Well done!
So if the capillary force makes the water level rise higher than the other water level what keeps you from flowing the water from the capillary tube to the other one to get perpetual motion?
Great man
Awesome video!!!
Keep continue
And most importartly...
Stay safe
am I the only one who feels like he repeats himself on every point like 5 times
That's how he makes sure everyone understands, even the people who consider themselves unexperienced at the topic at hand.
He's definitely teaching! And your definitely observant 😎
That just reinforces any un-sure viewers knowledge on the subject
It helps to grasp the points better.
longer videos get more money
Just amazing example 👌🏻
Cool video!
Can you make this way water to flow continuously? Like including fabrick to suck water and drop it in a larger section?
This was so interesting ✌️😎👍
Can u make a infinity water loop with this stuff
what is exactly adhesive force
Thank, now i know how make below 0 absolute presure vacum
That part about redwood trees was so cool! I had no idea.
Finally, to understand capillary better than just theory from our SCHOOL teachers
This one was a proper explanation, finally. 👍
Actually it was a very poor depiction of what really happens, the term relative pressure is only relative, and the entire explanation was lacking.
Thank you sir
flatearthers : " THIS IS CGI! WATER ALWAYS FINDS ITS LEVEL!"
What if I cut the 2nd tube (highest)
A little bit below it's highest water level so it starts to flow out and connect it back such that it flows to the 1st tube (biggest)
Would that mean it would keep flowing?
@The Action Lab So, what would it feel like to swim in it if you were to scale that experiment up so that the smallest tube was the size of a pool?
Where did you get that piece of glassware? That would be nice to have on my desk to explain
That's a nice detail about the redwood trees and explains why they grow only in coastal regions and why they are so large in California where the mist off the ocean travels inland so far.
Pressure is an emergent phenomena where molecules randomly colliding into one another at a microscopic scale. The natural question to ask is, what's going on at the microscopic scale for the negative pressure?
The answer depends on your fundamental understanding of the term negative pressure, if it is understood as relative negative pressure then its essentially particles colliding just less frequently and with less kinetic energy compared to its surroundings. However if understood as negative pressure then unfortunately no such thing had been proven to exist.
@@asemhisham3507 wht about negative volume
@@asemhisham3507 Theoretically, it may be possible in the realm of statistical thermodynamics, but only extremely locally and not at all on any macro scale. The caveat is however that the probability is so low as to be non-considerable. Thought conundrum: if all the molecules gather to one portion of a volume could the pressure elsewhere be less than what exists between the molecules natively? Of course, though, the question has no meaning.
Negative pressure means tension instead of compression. Of course you can’t have a negative force. The force is acting in the opposite direction, but since we use the word pressure to typically mean push instead of pull, it’s technically correct to say negative pressure.
If I have a 3 way split evaporator using the 0.031 cap tube at 120 inches. Will the other two cap tubes be the same size and length or will they need to be different lengths to achieve design pressures ?
This is one of you most fascinating videos. (I never realized how geeky I was).
I’m so sad that you don’t make a lot of videos I just find them so fascinating
Do you think you can do cold welding between to clean metal surfaces like what happens in the vacuum of space in your vacuum chamber?
After launching i was like, wait, didnt veritasium cover this?
Great video !
Got this question when as a kid, no teacher or anyone answers me why, first time got the answers here, sounds new and right to me.
Thank you.
You do the coolest things
Awesome!
As a kid I loved the Egyptian water level. As an adult I used it for a massive decking project to set all the uprights in concrete.
It would be cool if the Egyptians actually used that type of levelling system. It might well explain a thing or two. 🇦🇺🤜🏼🤛🏼🇦🇺🤓🐇🍀
Love it :)
Wondering about the effect if the contraption was made of a hydrophobic material. I think it might be the opposite (?)
Just know that unfortunately, a straw cannot be longer than 30 feet. My dreams have been killed.
it can if there's already water inside of it since the beginning like how trees work although that means you d akready have water in your mouth so.....
edit: oh it was already mentioned in the video
@@mpred8606, no... doesn't work... After about ten meters, whatever force you use to suck in, the liquid will not go up.
It sounds like the ten meters is only a vertical limit.
@@mpred8606 Nope. Around 30' is the limit of water head at sea level. Doesn't matter if there's more than 30' water in the tube or you have a mouth full of water before you raise it vertical, air pressure can only support a column of water around 30' high and so it would fall leaving a partial vacuum above it.
Capilliary action is a force generated between the liquid and the tube wall, surface tension limits the height the liquid can rise and the greater the diameter of the tube the less the surface tension can support a column of liquid under it. No negative atmospheric pressure there.
@@alexandrudanciu7874 no I mean it wont work what I am saying is how like the trees from beggineng bassicaly have straws that get longer and longer it doesn't get stuck at 10m because there's no air ti cause tha liquid inside to boil its bassicaly in a super vaccum
Talking about negative pressure (omitting the RELATIVE) will get flat earthers pumping!
Thanks for dyeing the water!
Could this be used to make a gravity battery it might be extremely slow unless you had a whole bunch of tubes
Now make a perpetual motion flow of liquid using capillary action!
It'll level out eventually no matter how hard you try
@@linecraftman3907 perpetual motion is impossible, It was a little humor.
Perpetual motion ? see the test :
the liquide stop to mount...
ua-cam.com/video/Zj2cfihDrpU/v-deo.html
@@stomoxe1 i don't get it. can you explain?
Can perpetual motion be used using this method?
Try the same experiment but using tubes made of teflon or some other hydrophobic material.
Cool Video
Hey, nice video again, I like your channel for so long. Some people from abroad US can't fully understand you, and subtitles aren't very accurate, so when you mention the inspiration for your videos, like veritasium in this one, or Tom Scott in the last week "video about lasers" , some people won't really realize it. It would seem more fair to put a link in the screen. Thanks
of course my mind immediately wants to know if you can make the skinny path pour back in to the large one perpetually =P
What will happen if you place the glasstube in the vacuum chamber?
Nice video
Water displays apparent "antigravity" properties all the time. Just think blotting paper or a drop of water hanging from a tap. Nothing to do with air pressures at all but just reminding us that molecular attractive forces can be much stronger than gravity. Air pressure is only relevant if we try to draw water up a pipe that is not open ended. As far as very tall trees are concerned I'm sure I read somewhere the extra lift beyond capilliary action and evaporative "suction" is achieved through a series of open and closed valves in the trees structure.
I love your vacuum experiments and watch them regularly. Can you try this in your vacuum chamber - I'm keen to see the results.
Is it possible to change the colour of metal from reflective to opaque ?(sorry not able to explain what I mean in better words) Like those glass panes that become frosted when you click a button.. and on a different note how do these glass panes even work ?
8:10 he has an uneven mustache🤪
Anyone wondering what if the thin glass were bent & poured into the big one?
I was waiting for someone to say that
Make enough of them connect together to form a drip that can fall!!!!!!
Me too, but i think the capillar effect and surface tension would hold the drop together, so it can't drop. The force that is needed to overcome the effect will cancel out the gain of potential energy from the water height difference. But its only a guess. ^^
@@melonenlord2723 Either way, it's definitely impossible, at least infinitely, as that would be over 100% efficiency, and we'd be using it for free energy.
@@jordanbwalt humans know very little about the world around us, yet we are so arrogant we make up 'rules' that prevent others from questioning
HUH. So... ever- flowing heron's fountain may be possible? maybe if the smallest tube was curved to feed into the big fountain it would flow on its own until it evaporates?
try Rain-x, make your glass surface hydrophobic, redo experiment, measure differential coefficient of friction via your change in miniscus... You get the drift.
i think its surface tension, not pressure
with all the negative comments that exist on UA-cam, here is a positive one for you.
You are awesome!
Hey there i have heard that pressure in 1 meter deep in ocean water is the same as 1 meter deep water pressure in a narow container sooo is that right 1 meter deep in pool vs 1 meter deep in ocean is the pressure same?
Hi action lab 👋 i liv ur vids .. ur my inspiration and bcuz of u I was interested in science..U were the reason I decided to become an astrophysicist Im stil 15 tho... Hope u read and comment this(comment optional) Btw it says actionlab is closed! On ur store.. I really want to buy some stuff so can u open it again ... I am from India.
Salute and hatsoff to u 😎😎😁😁😁😁😁👏👏👏👏👌👌👌
were do you get that
Bending the capillary will make some running
Or siphoning will give some motion once it's starting
Try this
wow way cool, good thing straws aren't that long :)
Is it possible to use capillary effect to siphon back to the main tube and let it go... forever?
Finally
first
@@cghouI nobody cares
@@TurboZarya lmao
@@TurboZarya I don't remember asking you if you care
@Jaxson Hughes thx
I was about to say this reminds me of Veritasium's video, and you mentioned it
6:44
I was thinking if I should leave a comment about varitasium's experiment and you said it just at that moment😃
What would happen to the capilary height in lower atmospheric pressure?
So how do water and nutrients get from the roots to the leaves at the top of trees that are taller than 50m? There are trees taller than 100m.
I have a question, if a black hole suck into it everything with mass, and if you placed a small black hole a question, if a black hole suck into it everything with mass, and if you placed a small black hole on earth it would suck in the earth as well as the air since it has mass, if it did what would be left except for the black hole if everything got sucked in?
The flat earthers should watch this, just so that they can see that water finds separate levels.
I can already see it: you have not thought about your comment properly. pity. look back and go to nature and see why it is possible what you see. because you think you can see but you only see what you want to see.. I do no reply.
Read my mind.
Flat earther's have already done their own experiments to prove the earth is round and have thrown out their own evidence. While this is a great proof against their argument, sadly they are doing science backwards. They already have their answer, now they need to find evidence to support it.
Can the smallest tube be bent over and then down a little where gravity would pull drops down to drain into the largest tube, like a forever fountain?
What happens if you put this into the vacuum chamber?
This is the same principle used to create the "lighter-than-air" material known as Aerogel. Basically, it starts as just a block of amalgam, until the liquid is evaporated from the voids. Once the evaporation has taken place, the voids are so small, the air pressure within the matrix left behind is of a lower pressure (amd subsequently less mass) than the surrounding air... so the matrix itself actually 'weighs' less than than sum of its true mass.
Can you put this tube and pull a vacuum? Would the excess heights change?
How the glass pull the water up?
If you put soap water, the result would be the same?
How does come up with soo many ideas mann he would be the perfect partner for a science fair
Can this capillary force be used to make one of those perpetual self pouring flasks? (Probably not but i still wanna ask!)
my new science teacher while on quarantine 😂😂
Be very careful accepting what's shown here without a critical mind. As has been pointed out elsewhere there are fundamental flaws in the explanation.
How can we do the opposite and increase pressure?
but what if the small tube is bend towards the bigger tube? infinite fountain?
Please upload a video of stress strain curve doing an experiment ....
I'd like to see more about increases in pressure.
What happen if the capilar drop on the big one ?
Can you have a temperature lower than absolute 0?
What happens if you put one cappilary tube inside another ?
What happens if the capillaries tube is broken half way down?