If they could make dry erase boards with this as a top coat, I wouldn't have to worry about staining over time or damagine the dry erase board with constant cleaning. Just spray water, wipe, et viola no left over ink

@JustJacob-nt8eu

2 ай бұрын

Basic Dawn dish soap lowers the surface tension of water better than most things

@JV-pu8kx

2 ай бұрын

And you wouldn't have to worry about vandals coming around with Sharpies.

@amosmoses5630

2 ай бұрын

Its probably cheaper to buy 10 normal whiteboards than 1 hydrophilic one. 6:17

@Mike__B

2 ай бұрын

@@JV-pu8kx if someone uses a sharpie on a white board one of the easiest tools to use to remove it is... a dry erase marker.

@echelonrank3927

2 ай бұрын

@@Mike__B gold

“An accessory to demoting Pluto” LMFAO ❤

@Ampersand100

2 ай бұрын

Pluto lives!

@adamparker5467

2 ай бұрын

He should have erased the L first and let it hang out for a minute before erasing the rest.

@unknownman5090

2 ай бұрын

That seem personal on different level

@colleenforrest7936

2 ай бұрын

Pluto is hard to get rid of!

@jurjenbos228

2 ай бұрын

I think Neil is the kind of guy that would really likes this kind of humor.

A good portion of this video was looking at clear water on a solid white surface being directly illuminated. It was very difficult to see the edge of the water droplets. I think illuninating it more from the side might have helped us to see what was going on better.

@gobblinal

2 ай бұрын

And colouring the water.

@stevekirkpatrick1612

2 ай бұрын

Yeah, the thumbnail suggested it would at least be colored water. Even with that still, the camera angle didn't show it all that well.

@alanparker3130

2 ай бұрын

Or printing a grid onto the card, so that you can see the distortion of light beams, due to the droplet. Scientists studying wetting use this trick a lot.

@cheeseparis1

2 ай бұрын

@@alanparker3130 I guess water would get under the grid and make it disappear. That would be an interesting experiment : how can you permanently print something on this surface?

@TibrisXVII

2 ай бұрын

yeah, I gotta say I was pretty disappointment in this video for the most part. Just frustration because I couldn't see what was going on.

5:52 "super normal surface" is actually an apt name considering the contact angle would be near 90º (normal to the plane)

@lubomirkubasdQw4w9WgXcQ

Ай бұрын

o k

@beanorama

14 күн бұрын

oh yeah! Never thought of it that way!

"Suck it Neil" -Action Lab 2024

I kinda want to do this for a "Graffiti Approved Area" where you let folks tag your wall for a while and then every month or so, come through and pressure wash it smooth and clean again. That way folks have a place to do their thing but you can wipe the slate clean when it rains or every month or something. It allows the art to be temporary which somehow makes it more special because you have to see it before it's gone.

@edenassos

2 ай бұрын

Why do people even do graffiti? Get a real hobby.

@TheIndispensableOpposition

2 ай бұрын

​@@edenassoswhat do you say constitutes a "real" hobby as opposed to a "fake" one

@bobthegoat7090

2 ай бұрын

@@edenassos Because they have no self-esteem and think they don't matter, so they hope putting a literal mark on the world will help them.

@googol990

2 ай бұрын

@@edenassos Neighborhood beautification.

@thisaccounthasbeensuspended

2 ай бұрын

​@@edenassosWhy do people draw paintings? They should get a real hobby

3:19 You should have that in all your videos.

@davidroddini1512

2 ай бұрын

Pluto!

@ohioplayer-bl9em

2 ай бұрын

Maybe he thinks Pluto identifies as a 🌞

@jaseiwilde

2 ай бұрын

beth tame your mans

@San-lh8us

2 ай бұрын

yes, until neil decides to make an appearance as a guest in one of the episodes

He said: “Let’s say I’m still mad at Niel Degrasse a Tyson for being an accessory to demoting Pluto…” brooo hahahaha 😂

@-Devy-

2 ай бұрын

We know. We all watched the video.

@San-lh8us

2 ай бұрын

@@-Devy-but he said it, h said "let's say i'm still mad at Neil Degrasse Tyson for being an accessory to demoting pluto" and then proceeded to spray "pluto" on the surface

@stjeep

2 ай бұрын

​@@-Devy-well im in the comments before watching, so checkmate

SuperNormal surface 💀

@Resursator

2 ай бұрын

I wonder how it will react with a null drink.

@JustAnotherCommenter

2 ай бұрын

It's kinda like when an unstoppable object meets an immovable force, the former just moves past the latter.

@litigioussociety4249

2 ай бұрын

That's what she said. 🙂

@TeslaRockin

2 ай бұрын

@@JustAnotherCommenterIn scientific terms you get quantum tunneling ?

@asiano3385

2 ай бұрын

@@litigioussociety4249 these jokes of my old schoolmates.

5:15 thank you for the mosquito scare, almost slapped my ear 😂😂

Lol the Pluto bit was 🏆

The way you explained and demonstrated hydrophobic vs hydrophilic surfaces was very insightful. Great practical examples too, they helped me visualize the concepts far better.

@JackDaniels-ex9mf

2 ай бұрын

Yes and when someone says "water is not wet" this video is proff that it is wet.

These two come up a lot when studying my biology, seeing a visual representation definitely helps concrete my understanding. And yes, SUCK IT NEIL!!👏

I'd like to thank you. I started watching your videos in my younger years and you inspired me to join my first stem class in the 6th grade, I stuck with it and years of cyber literacy, fundamentals ect, and camps and online lessons, I was accepted into MIT's robotical engineering program, and you have been there to inspire me along the way the whole time, so thank you!

@margodphd

2 ай бұрын

That's amazing, welcome to the dark side ❤

"I have make super normal surface" ~ The Action Lab

I love water so much aswell. I can‘t even live without it!

@cyfralcoot65

2 ай бұрын

Does it mean you are superhydrophilic too?

@nickbob2003

2 ай бұрын

@@cyfralcoot65im superhydrophillic until I start working out, then all the water beads right off me!

[2:20] I find this a remarkable demonstration. The letters look like they are lifted off the surface and float in the water intact.

@mrbmp09

2 ай бұрын

Blackmark52, That's because they are intact.

The only think I don't like about popular science channels is that they barely scratch the surface and when one just becomes interested the video ends ... then there is only the good old encyclopedia research and web searches, because most videos about the topic show only the same few popular facts and experiments :(

@jaisenroa4219

2 ай бұрын

tbf, these are supposed to be more "introductory" videos to teach you the basics of something in a way that's easy to understand for people who aren't fully invested nor experienced in the topic if something specific does interest you, then encyclopaedia will indeed always be the best option -- because that's what they're for. and hey, going down wikipedia rabbit holes can definitely be very fun and if something *really* interests you, then that's what school is for, no? even if school is not as good as it could be

@anthonyshiels9273

2 ай бұрын

Derek Muller from Veritasium and Brian from AwesomePhoenix go into more detail on these topics.

@LiborTinka

2 ай бұрын

@@anthonyshiels9273 you're right (you likely meant AlphaPhoenix) - these channels are excellent - I've learned so much about e.g. vacuum systems and how electricity works from the "speed of electricity" dispute - and they bring new and interesting facts even to someone who already works in the field

@LiborTinka

2 ай бұрын

@@jaisenroa4219 Sure, it's just my frustration of wanting to know more. Tried school (university), but they only accept people with little better grades than I got 20 years ago (despite I already work in the field I want to study deeper...). So textbooks, encyclopediae and journal articles are my primary go to places...

@Metal_Master_YT

8 күн бұрын

I know the feeling, but it's only reasonable for short youtube videos like this to only show what's interesting and introductory. There are other channels that go in depth on topics like these, but they are usually less popular, unfortunately...

Pluto wasn't demoted. It was promoted to king of the dwarf planets. The end result is countless numbers of kids being inspired to learn about the Universe.

@FoxDog1080

2 ай бұрын

True!

@luxinvictus9018

2 ай бұрын

Funny how it resembles mythology. Pluto was made to leave olympus and rule the underworld. But the result was that he essentially became a ruler of his own kingdom, his own Olympus underground, with countless deities and forces under him. Kinda poetic really, that the planet with the same name should undergo a similar fate

@gladiatorsfc7

2 ай бұрын

"Is Pluto the greatest dwarf planet in the universe?" "Pluto isn't even the greatest dwarf planet in the solar system" Eris would like a word

@JustAnotherCommenter

2 ай бұрын

I still like Sisyphus mythology better 'cuz meme funny hehe

@nickbob2003

2 ай бұрын

@@gladiatorsfc7depends if you are looking at mass or volume. Eris is more massive but Pluto is physically larger

Your Neal DeGrasse Tyson comment was priceless...

@strategistaow3520

2 ай бұрын

I watched video before sleeping and in my dreams i saw him fighting with neil over something but not for pluto

@NoombatIsMe

Ай бұрын

@@strategistaow3520every dream has meaning… maybe you are still bitter about Pluto? Lol

One of the few channels where I appreciate the reminder to hit the like button, because I have ADHD and often forget to hit like when I enjoyed what I watched 😅

Next time use food coloring on the water...

This Is my favorite quick science on youtube. Not some trivial thing I learned long ago In college, but acctualy interesthing experiments and not very well know fenomena.

5:00 Okay, Nice, He’s smart enough to avoid getting pneumoultramicroscopicsilicovolcanoconiosis.

Suck it, Neil! Also, I learned more than I expected to in this video. Plus, plus geek points.

Justice for Pluto!

LOVED the bit about Pluto. Nice music insert too! 🤙

Would’ve been cooler if the water at 5:24 was food colored. Can barely see it

A video on contact angle would be great

Absolutely awesome!

YES! He said "thanks for watching" twice, i love it when he does that!

I need to see a magnet under that ferrofluid before you pour the water.

This was fun. I laughed at the Pluto bit.

Absolutely every video this guy makes is amazing, and fast paced, and he just keeps em coming, video, video, video, thousands of fucking videos, he is a supervirtuoso!

I’ve asked this a bunch of times before but you get a lot a comments so I’ll keep trying, where do you source your video ideas, like do you just hit refresh on Google scholar or what’s your creative process. I’m an engineering student and learn so much from this channel. I would love to know if you have some kind of hack or if you’re just a genius that reads a high volume of stem articles.

I wish you had done a side-by-side comparison of hydrophobic and hydrophilic molecules so we could really see the difference between the two and how they work on the atomic level.

Someone: Hydrophile. Dorontabi: It's a compliment.

@mh1970

2 ай бұрын

Bro leave that water alone. I'm calling the police.

Would have been nice to have an explanation of what that coating is made up of. And is it tough enough to use routinely on walls to preventing tagging?

can you do a video on contact angle? I've never heard of it before.

@grigorbrowning

2 ай бұрын

I agree. Especially because the diagram showing it make it look as though the tangent to the liquid surface can be 'drawn' slightly arbitrarily. It should originate at the point that the liquid stops being in contact with the surface (i.e. no gap shown at 0:44).

@nickbob2003

2 ай бұрын

I was also hoping he would have dove into more detail about contact angle

That’s a cool explanation

What if they used this surface in those old ads about how good a cleaning tool was?

@alexandermcclure6185

2 ай бұрын

You could sue them for false advertisement.

@unknownman5090

2 ай бұрын

​@@alexandermcclure6185Depend. Food industry used cardboard and such for modelling the food

i almost forgot about this channel. Its probably one of the most consistent and creative channels out there

6:00 Love is stronger than hate, chemically proven!

You make science so fun thank you 🙏 😊

0:32 it's messy but I wouldn't go as far as saying it destroyed a floor. Ultra fine glitter is pretty bad though.

4:24 Would've loved to have seen you wave a magnet over the ferrofluid after you've lifted it off with water.

Pluto! A man after my own heart.

at 4:45 he should have tested it with a magnet

5:16 careful a fly has entered the experiment

@ccelik97

2 ай бұрын

I f'ing hate when those entitled asses pull such sheet. Time to put this channel on hold for as long as I can, and whenever I see a new video by him about a topic I'm interested in, searching for some other channels instead of watching his.

@MixbOOsted

2 ай бұрын

that's bgm lol but i know you knew

@xavier84623

2 ай бұрын

@@MixbOOsted or is the fly trying to communicate through song? we need to experiment that right away, scientist get on it.

Having a building that the outside is made of this material and having artist come and draw on it would be awesome, easy to clean and could be reused for new art all the time like a timed/ constantly new art piece every time you go down the street

@VoltisArt

2 ай бұрын

Only works until some selfish needy tagger comes along and acid-etches the stuff like they do with glass. All graffiti is not created equal.

What is the material used in the video

@heatshield

2 ай бұрын

3M Super-hydrophilic Post-It Flex Write

@Spencergolde

2 ай бұрын

​@heatshield I think they're asking what it is, chemically. It would be nice if the science channel got into the actual science behind why this works, other than just saying "it has polar groups in it". I would guess it's some type of a polymerized alcohol, maybe a titanium dioxide coating in flexible glass substrate

Sounds useful as a way to avoid oil and inpurities to stick to the walls of tubing.

I wish you were my science teach back in the day 😊

Would the spray paint still come off at 3:34 if you let the paint dry out for quite some time?

Great video! Can you please draw us diagrams of what this looks like at the molecular scale for both hydrophilic and hydrophobic surfaces?

You should have used black paper or dye in the water when doing the Hydrophobic diagram as it wasn't easy to see.... Apart from that.... THANK YOU!! For another fascinating video.... I always look forward & enjoy watching them.

What was the Superhydrophilic sheet you were using? Is it expensive?

Ferric Chloride (copper etchant) is highly staining also. I ruined many shirts and jeans when I used to make etched copper stamping dies.

When you scrubbed some of the paint off from the letters it made it look more like some font of a metall band album cover 😂 really great video btw

great information, thanks

hi action lab, i would like to see how long a newtons cradle would run in a vacuum, would you please test this? i imagine holding one ball towards the glass of the vacuum chamber, with a magnet on the other side, and letting go when there is maximum vacuum. although i dont know if this would magnetize the ball, and ruin the experiment. truly hope you see this post and want to test it :) kind regards edit: you already did that! how cool :D

The Action Lab's content is unreasonably original.

Hi can you do a video on dry erase boards and markers and why they get smudged when you use ur fingers and why they dry out and how to clean them etc. Theres lots of unanswered questions as a kid

This'll revolutionize projector screens. Educators need not fear writing on the screen instead of the whiteboard.

are the effects due primarilly to polar attraction or repulsion? And , is the contact angle a physical/ mechanical property porely related?

I find it so wholesome that “making as much contact as possible” is considered something like love :) maybe I’m just sentimental but that’s nice

Lovely video! At 0:44 the surface area angle diagram doesn't look correct as the vertex needs to be at the point where the water meets the surface, Is this right?

Missed opportunity when you wet the ferrofluid I was hoping you would try applying a magnet from below.

could a hydrophobic coatings make small seams and joints, that would otherwise allow water to pass through, impermeable under low pressure applications? Would water flow , horizontally , over window screen without dripping through if only the top surface of the mesh was hydropgobicalky or hudro- lovingly?

If possible can you try an experiment that I came up with. The things you need are an empty room, a light source and you inside the room. What I have in mind is that , when the light source is turned on you are able to see the walls of the room because they reflect light from the light source. But what if we make the surface of the walls so imperfect that in whatever direction light may hit the wall it does not get reflected to atleast a single point in the room. Which means if you observe the room from that point, even if there is a light source in that room, you would not be able to see anything like the wall and the ceiling in the room.

Please make a detailed video on demonstration and explanation of the super cool phenomenon called "Sonoluminescence

Super hydrophilic surface is the perfect example of true love where you can not break the bond between the surface and water no matter what you apply to it, just like the bond of true lover's hearts

I speculate that when we begin to construct things from smallest of levels this super hydrophilic/phobic principle mixed with the capillary effect could brings interesting materials like say a line that pushes water with no moving parts

Back In my day, being *hydrophobic* was okay. We were *hydrophobic* all the time and did *hydrophobia* all around town. These days even a little hint of *hydrophobia* is off limits and will get you in a world of hurt. Wild how the times change and being *hydrophobic* is just frowned upon now… 🤔

Is there more "polar" liquid than water? I found various metrics for polarity (it cannot be expressed as a single number - that is only approximation because iduction, resonance, dipole moments etc. etc.) but typically alkanes are least polar (nonpolar) then the table goes through organics, alcohols and finally water. Is it possible to go further? Maybe liquid hydrogen fluoride? Supercritical carbon dioxide?

@agnelomascarenhas8990

2 ай бұрын

What about dielectric constant.

@agnelomascarenhas8990

2 ай бұрын

Solubility is also indicative.

@LiborTinka

2 ай бұрын

@@agnelomascarenhas8990Thanks, this is the magic word. By this measure, e.g. sulfuric acid (ε = 100) and formamide (ε = 111) are even more polar than water (ε = 80.1).

Min 2:14 : "Action Lab" => "Action Nap"? 🤔😮🤭 Very good and very interesting video as always James. 😀👍 I think that hydrophilic surface could work well with external walls in places that are written s*** often with spray paint. 🤔

I need a set of dishes made of that stuff.

KZreadr shocks world with science experiment showing that love is stronger than hate

@user-bm3hu5bm3b

2 ай бұрын

they're equal in strength but love is as rare as a father coming home from getting milk

At 2:00 seeing positive charges depicted as blue and negative as red feels illegal.

so whats use for in our daily life ?? or just science lab stuffs for specific use, looks very good for cleaning ,but only on flat surface right..?

i see your camera improved!!

So how do you combine both for the perfect jacket? You want hydrophilic to make it easy cleanable, but also hydrophobic to stay dry in rain.

Seems like those things might have some application for water purification/filtration?

More please.

I need this hydrophilic coating on my car!

That random 8D mosquito buzz soundtrack though 😂

Because of the white surface we couldn't really see exactly what's going on, it was cool anyway. Very interesting!

"So it's dry now" *finger covered in paint*

If you let the water evaporate does it re-stain it?

I wanted to see how the surface interacts with an emulsion. Will it separate out the hydrophobic parts from the hydrophilic parts?

The arrow needs to start at the base of the drop when measuring the contact angle 0m:44s.

Cool stuff!

you should try magnetic experiments with the ferrofluid after having it suspended in water!

Considering that ferrofluid is ferrous particles suspended in oil and that oil and water have a long standing disagreement you should be able to remove it from other things with a good emulsifier like tipol or similar.

Yoooo i wanna know how you made that super hydrophilic surface. What is it made of?

Can you put it over walls? How with time the material rots?

Very interesting, although I'm left wondering how they make superhydrophilic surfaces.. Is it magnetization? Or is the substance itself polar? Very cool video, keep pouring water on things, king

Well i know youtubes compression didnt like the spraypaint particles in yhe cleaning bit. Still very cool

So that’s how they do anti-vandal walls! Just point a hose at the thing and the paint comes off. No high pressure or harsh chemicals.

What about Omni phobic surfaces? I'm guessing those are like a bed of spikes microscopically. Are there any durable enough to function as a counter top, or shower walls, or sink / toilet surface? I seem to recall that these can be made with a laser, so the base material just needs to be tough enough... Although I guess the spikes would eventually fill up with microscopic dust unless there was some way to evict the dust... Maybe if it could also vibrate at an ultrasonic frequency... If it can do that then it could also act as a source of ultrasonic waves for cleaning as well, but that would require contact with another surface that needs to be nondestructive...