it's so sad to see that hydrophobia is still such a problem in today's society. 😔
@Gwynbleiddsanity3 жыл бұрын
i love your pfp
@SchoolofRockNRoll3 жыл бұрын
@@Gwynbleiddsanity i love yours
@MaGaO3 жыл бұрын
Yes, some people are rabid about it.
@robbyakbarsyah3 жыл бұрын
True, i mean who are we to judge....
@shanerichard1003 жыл бұрын
we just have to suck the air out of the hydrophobes 😐
@redghost0013 жыл бұрын
"It gets wet and then magically turns dry when you touch it" Everything reminds me of her 👁️👄👁️
@idiot35663 жыл бұрын
da faq
@saitama84103 жыл бұрын
Underrated lmao
@sakshitandel85723 жыл бұрын
Adults only
@kadin2443 жыл бұрын
LMAO
@Try-hard-emily3 жыл бұрын
@@sakshitandel8572 dude if you check his channel you can see an anima playlist so his opinion doesn't matter
@PlasmaChannel3 жыл бұрын
Next video idea: licopodium flamethrower.
@mitvasagar69853 жыл бұрын
Yo
@ojaskumar5213 жыл бұрын
Hello unknown verified person
@ojaskumar5213 жыл бұрын
Time to subscribe the plasma guy
@PurplexEdits3 жыл бұрын
Yeah
@PurplexEdits3 жыл бұрын
Lol
@sparklefluff3 жыл бұрын
As a person who makes my Hot Chocolate with milk, this has always infuriated me.
@loganricherson3 жыл бұрын
Easy, buy a vacuume chamber, problem solved /s
@spingleboygle3 жыл бұрын
@@loganricherson yOuR cAnClEd FoR uSiNg /S fOr sArCaSaMeeee!1!1!11!11111
@heyyou51893 жыл бұрын
I mix the cocoa powder with sugar. Heat the milk and add the sugar/cocoa while stirring. Tasty. I have this daily with a spoon of instant coffee mixed in.
@ambrosxa3 жыл бұрын
don't you just mix it
@luckythelucklesswolf14193 жыл бұрын
@@spingleboygle ur canceld 4 usin rndm caps 4 sarcsm
@keiji15313 жыл бұрын
I discovered that trick when i was a kid if i remembered that correctly
@ensaraliu39813 жыл бұрын
Same
@ensaraliu39813 жыл бұрын
Idk why it went viral I thought everyone knew that
@panzerofthelake44603 жыл бұрын
@@ensaraliu3981 because the current generation is the dumbest one so far
KZbin: 7 comments Comments: 1, take it or leave it.
@damf54883 жыл бұрын
Leave it
@damf54883 жыл бұрын
@@SnickersEatsCookies leave it
@joelsajugeorge47363 жыл бұрын
100 like on comment
@xploration14373 жыл бұрын
You obviously don’t know how KZbin works.
@xploration14373 жыл бұрын
@Green Constructor E doesn’t.
@youtubeviolatedme71233 жыл бұрын
Cats are looking for a coat made of this "magic" substance
@xploration14373 жыл бұрын
They already have one.
@neerbon94173 жыл бұрын
CoCoat
@ernestsmith35813 жыл бұрын
Goosefeathers.
@Isai3143 жыл бұрын
I don’t need school, I need answers
@EliteBison3 жыл бұрын
lol
@chairwood3 жыл бұрын
answers don't I I need need school ,
@Supersquishyawesomeness3 жыл бұрын
@@SudhirYadav-kz6ts yes learning how to ask questions is actually more important than just having the answer.
@vijeshkumar6923 жыл бұрын
@@chairwood need i answers school need i dont
@julie-183 жыл бұрын
He teaches better than school does rn
@R2Bl3nd3 жыл бұрын
funny how the coolest part of this, lighting water on fire, was just put in at the end for like 5 seconds even though it's completely mind blowing
@Samrridh3 жыл бұрын
Fun fact : This video has been uploaded 1hr before it's release time(not purposely but accidentally)
@Renosen3 жыл бұрын
Where notification
@ELRandomMan3 жыл бұрын
@@Renosen the video was originally uploaded like an hour ago then was processed and then visible now
@KCDA3 жыл бұрын
It was to edit the description add cards endscreen etc...
@MaGaO3 жыл бұрын
It would have been even more fun if it was uploaded *after* it was released.
@Qui-93 жыл бұрын
Is that unusual? I ask without knowledge of common KZbinr habits.
@cheriegullerud2813 жыл бұрын
I always wondered why it was so hard to mix cocoa in liquid! Very interesting!
@mayankkumar27013 жыл бұрын
Huge Respect for u ,cause u not only show us really amazing science experiments but also explain it to us with such simplicity that is just extraordinary. Thanks for all the knowledge and to make me understand my love for science 🤗
@commenter59013 жыл бұрын
I do a lot of baking and have always found this to be very annoying. You basically have to mix a bit of liquid into the cocoa powder and continually add more till it's all mixed. Mixing it in with other dry ingredients helps too, depending on what you're making.
@APEXZ3 жыл бұрын
wow this is awesome !! this channel is one of my favorite and the best too !! congrats on 3M subs !! :))
Anyone making a cup of cocoa and milk, has already come across this hundreds of times. And it’s frustrating as hell.
@ccelik973 жыл бұрын
Pour in a 3rd of the milk first, add the powder in and have an easier time to start mixing it without the powder poofing away as it's sitting close o the top of the glass (then add the remaining of the milk and be done with it). Or use a shaker container.
@pavel9652 Жыл бұрын
Mix cocoa with sugar first or use a vacuum chamber ;)
@Supersquishyawesomeness3 жыл бұрын
The fact that this is so shocking tells me people need to get in the kitchen more.
@LimLux3 жыл бұрын
Go to the sandwich and make me a kitchen.
@FunnyMemes-dr3se3 жыл бұрын
We all need sandwiches. Everyone can make some and share.
@Supersquishyawesomeness3 жыл бұрын
@@LimLux how much are you paying?
@commenter59013 жыл бұрын
I'm sure that's the case, but there are probably also some people out there who cook a lot, but don't bake sweets. I unfortunately don't fall into that category and I use cocoa powder almost every day (I make single serving portions or I'll eat a week's worth of sweets in one sitting... my weakness is chocolate ice cream, I make a half a bowl of it every morning so I can have it for a snack in the afternoon, at least it's made with honey so it's healthier than store bought... but still, I need to cut back)
@wow52123 жыл бұрын
Who else wants a cup of warm milk with cocoa powder after watching this
@dnmoscato923 жыл бұрын
Cocoa powder is horrifying. He's not using the hot chocolate mix you're thinking of
@Levi5873 жыл бұрын
wow! I remember being here before you had 500k subs! You grew fast!! Great videos man!! They're always so interesting and you explain them very well.
@pavel9652 Жыл бұрын
I subscribed some time ago and now watched few videos and they have almost 5 mln subs! Insane! Great it is science channel ;)
@Kris-st7cx3 жыл бұрын
Anyone think it's funny that when he talks to the camera it looks like there's a fan blowing on his face and he's trying to get away from it?
@AsterSkotos3 жыл бұрын
Now I can't unsee
@spwn3r3 жыл бұрын
Underrated comment
@BiggBaddVVolf3 жыл бұрын
My fist thought was South Park Hardly Boys
@fiatanhaque58853 жыл бұрын
Now I understand why small clumps form and I have to stir a lot to remove them when I mix the cocoa powder in milk . Thanks to The Action Lab!
@raxanimations72153 жыл бұрын
Cocoa Powder : I don't obey laws
@trenboloneacetate13 жыл бұрын
What's with the Indian kid?
@Hewhoroamstheinternet3 жыл бұрын
@@trenboloneacetate1 what?
@MedAnimations3 жыл бұрын
Hi Rax !
@SsoundM97053 жыл бұрын
Best part is that he explains it in a way most understands 😉.
@sans4life3153 жыл бұрын
I dont
@SsoundM97053 жыл бұрын
@@sans4life315 Then you are the chosen one
@sinrj90283 жыл бұрын
Yes just let me take a sip of my chocolate W A T E R.
@commenter59013 жыл бұрын
I'm lactose intolerant, so that's what I do. You can also get chocolate tea, but I like cocoa power better.
@Pixiesfairiedust3 жыл бұрын
@@commenter5901 Im lactose sensitive and I drink chocolate almond milk, if you aren’t allergic I recommend it, it’s naturally lactose free.
@salsaghoul6883 жыл бұрын
I've tried making a smoothie with cocoa powder and some almond milk and it worked out great. Sometimes i put liquid coffee creamer in it too. Sweet delightful flavors indeed.
@fierydarkbg22103 жыл бұрын
How to walk on milk using cocoa powder: 1.get shoes 2.dip shoes to cocoa powder 3.have fun!
@spingleboygle3 жыл бұрын
It worked, but at what cost?
@fierydarkbg22103 жыл бұрын
@@spingleboygle choccy milk
@renanmendes12993 жыл бұрын
oil vs cocoa
@arfansthename2 жыл бұрын
@@fierydarkbg2210 also you become milk jesus so that's a plus i guess
@Gunz12343 жыл бұрын
Ofcourse it's Action Lab that always lights something on fire in his home..
@Abish_3 жыл бұрын
I always did this during my childhood but never posted on TIKTOK (since tiktok wasn't there)
@lonewretch3 жыл бұрын
Now adults are learning it, on social media. TImes, they are a changin'... god helps us all... Do you know, that if you put water in a freezer, it goes hard? *PSHEWWW MIND BLOWN* people today, thick as pig shit... I blame the meth addicted parents...
@t0kisaki.kurumi3 жыл бұрын
Same, lol.
@DragonAurora1093 жыл бұрын
@@lonewretch The water goes hard, Because it turns into ice, And if you melt ice, It turns into water, Want to know why?, Well, because ice is frozen water.
@lonewretch3 жыл бұрын
@@DragonAurora109 Yes. And if you look under your seat, You get a new car...
@Ktulu7893 жыл бұрын
This always happens when preparing instant chocolate or coffee with cold milk. Nesquick is the worst. Not very quick. I'm glad this one is not an ad!
@ShevkoMore3 жыл бұрын
I actually had that problem with every other cocoa except Nesquick...
@Ktulu7893 жыл бұрын
@@ShevkoMore maybe they changed the formula. I never bought it again since childhood, about thirty years ago.
@gingerbreadprime23923 жыл бұрын
I honestly thought everyone knew about this
@lonewretch3 жыл бұрын
No, people who eat tide pods are still confused about everything...
@surajitmukherjee30203 жыл бұрын
I see it almost everyday.I sometimes eat sattu (a type of cereal) for breakfast.sometimes,it forms lumps and when i poke it with my spoon it is dry again.Liked your video🙂🙂🙂🙂
@archaicfalcon48983 жыл бұрын
imagine the unfortunate guys that somehow buy this on Amazon
@mridulverma75683 жыл бұрын
That would be hilarious 😂😆
@kumirei87153 жыл бұрын
You are really alienating your existing audience with all this kids' content
@shashankkumar76983 жыл бұрын
What happens if we put it in hot water like boiling hot
@kellark3 жыл бұрын
Your videos are interesting and informative. Also Thanks for a video that's not an ad!!
@Ktulu7893 жыл бұрын
Indeed!
@mangus87593 жыл бұрын
This reminds me of when I tried to make my own chocolate milk with cocoa powder and struggled to mix it for like 30 minutes straight
@menreikichan82913 жыл бұрын
I think you need a little hot water to melt the choco. Then you can mix with milk.
@pavel9652 Жыл бұрын
You can mix cocoa powder with sugar first.
@itisricha3 жыл бұрын
I learn much more from this channel than I do at school
@ttv__btw__yt48353 жыл бұрын
What’s school?
@tracybowling973 жыл бұрын
I don't watch tiktok. But I used to do this all the time when I was little.
@DaVidKid18773 жыл бұрын
Me too I used to do it with my chocolate milk mix. I also used to dump a bunch in a big pile watched it float like a miniature island that was falling into the sea lol
@tracybowling973 жыл бұрын
@@DaVidKid1877 Me too! I always needed to see how stuff worked. Even chocolate milk mix.
@DaVidKid18773 жыл бұрын
@@tracybowling97 yeah I was the same and I always took apart my toys or electronics aswell to see what's inside. I also used to make mini volcanic lakes out of mashed potatoes and gravy and called it "spud Lake" lol.
@tracybowling973 жыл бұрын
@@DaVidKid1877 That's pretty funny! I took apart stuff as well. But I could never put it back again. So frustrating! 😆
@maryroberts93153 жыл бұрын
It's nice you explained it, but how hasn't everyone noticed this before.
@nhumph13753 жыл бұрын
What happens if you make a fire with ferrofluid (a magnetic liquid) would the fire/smoke be attracted to a magnet or would it change the properties of the liquid in any way?
@brandonb94523 жыл бұрын
When magnets or magnetic substances are heated to red hot or burned they loose their magnetic properties
@manavsharma22323 жыл бұрын
Like Brandy said, it loses its magnetic properties. Burning something destroys its structure and rearranges its atoms into something like CO2. This is a chemical change.
@nhumph13753 жыл бұрын
@@manavsharma2232 oh ok thank you guys for explaining!
@babyboo6003 жыл бұрын
always hyped for new action lab vid🧜♀️
@zayamatourous17483 жыл бұрын
Its the ✨Hydrophobic✨ for me 🤬😡
@RaivoltG3 жыл бұрын
Lighting it on fire was really cool! I wouldn't have thought it could be done. Great video and channel!!
@MedAnimations3 жыл бұрын
I like the way he says "Cocoa"
@rizilm22293 жыл бұрын
I like the way you spell "Says"
@MedAnimations3 жыл бұрын
@@rizilm2229 Sorry, I corrected it now
@rizilm22293 жыл бұрын
@@MedAnimations That's good, but my joke is ruined now. Nice animations btw.
@MedAnimations3 жыл бұрын
@@rizilm2229 Yeah sorry :'( And thanks :)
@inderkhalsa28483 жыл бұрын
I am in love with your videos. Your channel deserves much more💜💜
@itsCN3 жыл бұрын
Plot twist: he gained one sub for every blink since he started yt
@ean19133 жыл бұрын
i wonder if "Hey everyone" will get popular Edit: like "Pretty cool huh?"
@DR3_34D3 жыл бұрын
*yes*
@HorstMeddel3 жыл бұрын
yes
@ranmindyt29023 жыл бұрын
yes
@olacheney7033 жыл бұрын
A catch all greeting brimming with charisma and enthusiasm. Surely it will get popular. Surely.
@surinderkumarverma36243 жыл бұрын
am in love with your videos. Your channel deserves much more💖💖💖💖💖
@dzakytamir30483 жыл бұрын
Action Lab : "Hey Everyone" GrayStillPlays : "Alright, we are checking out the only game...." Dream, and his friends : "In this video, . . ." Michael Penn : "This is a good place to stop" Any ?
@hatredisvengeance57773 жыл бұрын
It's funny that I like all THESE...
@ScubaShark--89643 жыл бұрын
??? I don't get it... Are you a Dream Stan or smth?
@dzakytamir30483 жыл бұрын
@@ScubaShark--8964 Im just a viewer
@sarahm46693 жыл бұрын
What a coincidence, I hardly ever drink hot chocolate but I just made some yesterday and noticed that some of the powder was stuck to my spoon even after stirring it quite a bit, so I poked it to try to get it off and saw that there was still some dry powder on the inside. And then the next day you release this video!
@curiousboy70153 жыл бұрын
Can we swim 🏊♂️covering ourself in lycopodium powder And stay dry 😍😍😍
@damf54883 жыл бұрын
😚😍🤩💅❣💞💕👒💎💄👗❤👁💍
@zwelp9823 жыл бұрын
How will you wash it off
@brandonb94523 жыл бұрын
@@zwelp982 and how would you get it stuck to you in the first place when you’re mostly water
@damf54883 жыл бұрын
@@brandonb9452 but you are 70% water inside rigth not outside
@curiousboy70153 жыл бұрын
@@zwelp982 vacuum cleaner😋
@Joshua_Lawrence3 жыл бұрын
I hate that the things I did as a kid keep going viral The worst part is I'm not even shocked by it, so I'm not exactly being as entertained as everyone else is. It just makes me wish someone was recording me as I did these things.
@tony11chan413 жыл бұрын
Bro, i feel you. When i sang a song, nobody gave a damn, but when the cool handsome guy sang the same song as i did, every girl in the room screamed like they lost their minds.
@coledean88453 жыл бұрын
Imagine if once you get out of the shower the second you get out and the towel touches you you just instantly dry! That would be cool
@reflux0433 жыл бұрын
This is why its really hard to mix hershey's cocoa powder with milk. If the cocoa powder has an emulsifier like soy lecithin added, it mixes really easily. Its the same with protein powders. Organic whey is hard to mix because it doesn't have an emulsifier, but standard whey does.
@Commenter263 жыл бұрын
That milk really does not want to become chocolate
@abueloraton3 жыл бұрын
Your videos are very educational and they teach the very basics of science, which I much appreciate. And they're easy to understand.
@Mirsab3 жыл бұрын
I'm surprised that this seems like news to people, didn't we all know about this phenomenon since childhood? What's goin viral next, that we can make bubbles with soap?
@heyboilaxer59113 жыл бұрын
I make my own DIY bubbles using my fingers and slightly mixed liquid soap
@HoldYourSeahorses3 жыл бұрын
The burning water trick was much more fascinating then the "freezing fire" aka cold helium through a tube.
@shradhanjalimishra90053 жыл бұрын
6:09 HeHe
@JadeMythriil3 жыл бұрын
I've experienced this when I was younger when clumps of cocoa powder float if I drop it in cold water or milk so that not all of the powder gets dissolved when I stir it. I just assumed it was the powder on the surface clumping together before the water gets deep enough in the pile to soak the rest. I had to rub it along the mug so I can crush them to dissolve properly.
@mujahidnauman9083 жыл бұрын
I thought the same too 😃
@jhn7888811 ай бұрын
Just put it in a blender
@easyarttutorials21203 жыл бұрын
My hand always shakes when I m first to comment😅😅😅
@honeyemmanuel33583 жыл бұрын
Literally me :-)
@MarinusMakesStuff3 жыл бұрын
This is why I use a particle accelerator in the kitchen to mix the cacao with water. Give it a little stir afterwards with an atomizer and you're done.
@pinkerton-kun91902 жыл бұрын
im gonig to puur coucou powdr all over my bodey and life with the fishies underwater forever and i will speak blublublublu
@mariansyk2 жыл бұрын
I love you ❤️. Respect for all these amazing experiments
@mishtijain12913 жыл бұрын
Congratulations for 3 millions subscribers
@fawadwazir1023 жыл бұрын
Always learn something new from your videos. Thank u sir
@Metal_Master_YT3 жыл бұрын
I made a mug of hot cocoa yesterday, and many other times this winter, and I have noticed that effect every time, I have also noticed it during the summer when I'm trying to water my plants, and the ground is very dry and dusty. and I know why it happens, water, (or other water containing liquids) repel air, and the powder is completely dry and airy and therefore repels the water because its full of air.
@mwofiet3693 жыл бұрын
Oh I love this youtube channel soo satisfying 😌😌
@spellbinder31133 жыл бұрын
I must be ahead of the game - I used to do this at least 20 years ago. Float the "dry" cocoa on the milk and eat it like that. Doesn't work with hot milk or water.
@StHaykin3 жыл бұрын
I was surprised when I encounter that phenomenon. I was both very confused and amazed. Now I know what it is.
@zacharypeloquin3403 жыл бұрын
I've been wondering about this since I was six years old... Thank you. 👍👏👏
@helloimnisha3 жыл бұрын
This channel never fails to blow my mind o_o
@organize19793 жыл бұрын
That’s the biggest jug of milk I have ever seen. Cool video!
@rottenapple_3 жыл бұрын
They come in cases of two at Costco
@ranmindyt29023 жыл бұрын
I think it work with ginger powder as well
@bobthegoat70903 жыл бұрын
Am I right in assuming that the powder was hydrophobic so the only thing making it seem wet was the surface tension that created a bubble around it until it got popped? In the vacuum chamber, it got wet because the air disappeared from the powder and so the now empty space inside the powder was filled with water because of nothing holding back the water pressure, essentially now making it hydrophilic in that environment
@FunnyMemes-dr3se3 жыл бұрын
Strange how the lycopodium powder sticks to your hands. Pretty cool.
@StuckInVim3 жыл бұрын
Amazing video! (As always.)
@janericdaniel31923 жыл бұрын
i discovered it, when i tried to do hot chocolate with cold milk, but the cocoa dissolves in cold milk very badly, instead it makes these little cocoa bubbles, and when you break it, the dry cocoa comes out of it.
@RegebroRepairs3 жыл бұрын
Which is why you mix the cocoa powder with cream and sugar to make a paste first, then put that paste in the hot milk to make hot chocolate. I came up with that trick at 10 years old, after my hot chocolate ALWAYS had little annoying blobs of cocoa powder that didn't get wet. It's still how I make hot cocoa.
@bradding5784 ай бұрын
nice and clear experiment
@chillhopnation76353 жыл бұрын
HEY!! Can you make an experiment in which- In a large vacuum chamber there are three positive charges(each has enough charge for experiment) placed in it. Let say charge A, B and C. Charge A acts as a transmitter as it moves a little to give some signal(different electric force) for five seconds .Charge B is palced 1 meter far from A and is for checking the time signal just like C. Charge C is placed 40 - 50 meter far from charge A , it also acts as receiver of signal like C. There are precise clocks fit with B and C to check the time interval of signal Questions- Does the time interval of signal for C is smaller than B? Did the signal reached the B before C? Did the B get the end of signal before C? Answer should be based on what is seen (not calculated or thought) If you can't do experiment like this Then acn you answer if any similar event has happended and it can answer the questions.
@zombiekinggamer3 жыл бұрын
You should use animation to explain every thing it will help the viewer to get the thing more easily and quickly.
@muneees3 жыл бұрын
What if you paint a wall with Musou black, and you wear shirt of Mosou black fabric. Does it feel like your body is invisible, when you stand in front of that wall?
@QVZ3 жыл бұрын
I don't think if someone in Trash Tok actually explained this You must have seen teens liking this experiment but they don't know why this happens Keep up the great job dude!
@BossInvader13 жыл бұрын
I discovered this when trying to make Cocoa (Hot Chocolate) with not hot enough water when I was kid. Usually when I wanted to make Cocoa, but just wanted to drink it asap, lol. There was always globs of undissolved cocoa in it.
@xiaoshen1943 жыл бұрын
2:00 Wrong!! You said it forms a water bubble around itself to protect it from air, while quite the opposite happens...
@chrisidema2 жыл бұрын
As a kid we used to put sugar on top of yoghurt and stick our fingers in. Your fingers remain dry when you pull them out. Not the same effect, but still interesting.
@huafan13 жыл бұрын
I really enjoy your content! Can you do some experiments with line-x spray and explain how does it work??
@ernestsmith35813 жыл бұрын
I wonder if it's possible to un-wet the cocoa out without resorting to dehydration? A bubble stone and air source, perhaps? Electrolysis of some of the water? There might be a water purification method embedded in this de-wetting concept.
@ikbintom2 жыл бұрын
So can you light cocoa powder on fire as well?
@squeally3 жыл бұрын
So for great cocoa I need another kitchen gadget, a cocoa vacuum. Also great with spores.
@ricksanchez30353 жыл бұрын
Hey Action Lab, just a comment but I don’t think that the cocoa powder popped up from the fat free milk due to it being hydrophobic alone. If that were the case then it should have popped up when you dipped in water as well. Any thoughts on this?
@riyaparekh84143 жыл бұрын
Hey, i think it might have popped up due to him dipping the spoon a litte too forcefully or little to quickly
@Amira_Phoenix3 жыл бұрын
Yeah, it's not likely that thinner milk would repulse cocoa powder more...🤔
@shebahammy3 жыл бұрын
Idea: make a red mirror, a mirror that only reflects red light and blocks every other spectrum of light
@Mrhiest2923 жыл бұрын
I'll try now
@Sqarzy3 жыл бұрын
I learn more here than I do In school 🚫🧢
@PHFIREEE3 жыл бұрын
The action lab I am confused. Is it possible to make a video in why when you put a pen cap on a tablet or phone screen it would slide around the screen? I discovered it by dropping my pen cap on my tablet. Huge fan. Thank you.
@meesalikeu3 жыл бұрын
pretty cool i always wondered about this -- do more with water tension like how bugs walk on the water
@ninja_nikolaj13 жыл бұрын
In 2 days its my birthday. can you reply plss. I have been watching you for long time
@indykkowalski93662 жыл бұрын
I remember watching this channel as a kid when he did the neutron star experiment and I told my dad instead of showing him. I thought he had an actual neutron star
@talanigreywolf71103 жыл бұрын
Fire pretty, fire VERY pretty!
@donaqin3 жыл бұрын
Can people float if the water is covered with hydrophobic powder?