Is It Possible To Blow Your Own Sail?

[@TheActionLab]

Hey everyone, you will notice that on the scale with the "sail" on we got -3 grams. This means that some of the air bounces off the sail and gives a small amount of thrust in the forward direction. If you have a completely curved sail that directs all the wind backwards then you can redirect your thrust backwards and move forward. However, the point is that you will always get more thrust by just pointing your fan the other direction. And no, the guy with the umbrella is not creating enough thrust hitting the umbrella to move forward. The way he goes forward is called an electric skateboard:)

[@Elyzeon.]

Makes sense

[@bmarkx2595]

and those false videos gets millions of views, that goes to show the amount of fools.

[@Practicality01]

I figured it was just within the margin of error

[@ap1jpanimations920]

Oh, wow, an Electric Skateboard, that is cheating :P

[@dvilardi]

Spoiler alert (don't read the comment before you see the video LOL)

[@ArmadusMalaysia]

"That's our neighbour going at it again"

[@SSSPrince]

Lol nice name

[@SSSPrince]

Had us in the first half ngl

[@juanduarte200]

...”but this time he’s seems like he’s out of it”

[@411Adidas]

Dude doesn't own or know what an umbrella is? Lol

[@typicaluser3884]

U almost got me with your name. 32 years

[@parthkatke6706]

4:00 Captain James, Pirates of the action lab😂❤️

[@hisokabestwaifu4951]

Harry was right Vik owes him 50 quid

[@ahmedyacine5305]

yea lol

[@yash4482]

No the action lab guy is wrong see his more recent video on same topic he corrected himself

[@njpromethium]

Neighbors: "Honey lock the doors that crazy freak is trying to fly now"

[@iSpiveyClips]

Fac

[@Gualberto_Villaroel_Oficial]

{]213

[@caffelatte189]

lol

[@itsjosh6347]

Omg!!

[@lilscrilla5081]

LMAO

[@madhupchaturvedi5950]

Could you try doing this with a curved sail, similar to the umbrella used in the original video? That way, I believe, it would become more streamlined and not negate all the force from the blower?

[@rolandvanheertum825]

It wont work

[@ARUNMANOJ86]

still wont work.. look at the airline jet engines when they land they use similar air brakes . and they angle it to control the braking.

[@mechanixautorepair]

Just the opposite the airlines use it for reverse thrust so it %100 does work​@@ARUNMANOJ86

[@JohnnySoporno]

That's how a spinnaker works on a sailing vessel. It needs literally to capture the force of the wind, as opposed to letting virtually all of it dissipate as the flat white cloth and the flat acrylic plastic do.

[@bullschitt3666]

The right way to do it would be to put the blower in the front pointing back at the sail which is trimmed for an upwind course. Then you'll get the thrust from the blower working together with the lift on the sail. It couldn't be perfectly straight you'd have to angle the blower to the closest upwind the sail could handle.

[@planetwally]

Would have been cool to demonstrate what happens if your friend holds and blows the blower at your sail with the blower disconnected from the vehicle :)

[@kekistan6762]

Then both you and your friend would move because the force from your friend holding the leafblower would push you and the "recoil" force from the sail would also push him back. This would create thrust but only for a short period of time since the source would be moving away just as fast (if we ignore friction and your friend skipped leg day and just flies away) as the object its propelling (the vehicle with the sail)

[@AAYLV]

RIIIIGHT

[@AmityHardstyle]

As if he has friends (joke)

[@fleghel]

Your wish is granted... : 3:57 ... a pretty big blower with high volume and low velocity.

[@zachaliles]

@@kekistan6762 the last time we ignored friction was in science class. Or was it math? I didn't pay much attention in school.

[@JackDespero]

I knew the answer from the theoretical point of view, but it is always nice to see that the experimental data matches with our models.

[@AndyPaxTheGameCat]

I recall an episode of myth busters where they were able to blow their own sail. But the boat moved very slow, and it was a super-duper high powered fan

[@TechNextLetsGo]

They used a mini jet engine.

[@dwightfry99]

I posted a reply of that clip. Here's my thoughts on why it worked (and how Action Lab failed to show the bigger picture. His experiment is very important though. It demonstrates physics as accurately as the Mythbusters.) I'll put this as simple and short as possible. First, a flat sail with a air flow going directly at it will generally direct the air to the left and right equally. If you direct air on the left side of a flat sail, then it will push right. If you direct air on the right side of a flat sail it will push left. Action Lab used a vehicle that didn't want to go left of right because I believe the wheels were locked in place. Second, his sail was flat so even when the air is directed to the left, right , or both; very little of that propulsion is pushing backwards. Using a heavily concaved sail doesn't force the air mostly to the left or right. It's mostly forced backwards. So to maximize thrust forward you need to be able to turn. And you need a concave sail so that some of that the available airflow goes in the opposite direct as the fan. _________________________________________ It's also worth noting thaton a flat sail it's applying a force on the left side of the vehicle in the front. This will make the back end rotate to the right and thus turn to the left. (and vice versa). BUT with a concave sail aiming to the left most of the air wraps around the sail and shoots of to right and backwards. This cause the vehicle to be pushed forwards and to the left (and vice versa). I am not a physicist. Don't take my word for any of this. I am just a guy that thinks Action Lab focused on a sliver of physics because it was important aspect of it. But he didn't delve into how these simple physics can be manipulated into doing unexpected things.

[@spyrgelispyy]

Mythbusters actually tested this and they DID get forwards, if they just had enough big and curved sail.

[@bullschitt3666]

If only they were smart enough to put the blower on the bow facing aft

[@10ON10]

But what about the thrust reversers in Aircraft engines, Always puzzled about that...

[@Black70Fastback]

its not a flat wall being acted upon like in this video, its curved contraption that redirects the the force in a different direction.

[@cosmicrider5898]

@@Black70Fastback like an umbrella?

[@Black70Fastback]

@@cosmicrider5898 lol, yes, somewhat

[@brentmc7872]

Captain Joe does a good explanation of how the TR's work kzbin.info/www/bejne/mZepi2VjdtJgkM0

[@brentmc7872]

Running the TR's from a mechanics perspective. kzbin.info/www/bejne/hKHHZnluZauBjqM

[@diff_edge]

Hi, this has got to do with the shape of the sail. Since a flat sail was used here, the air just distributed laterally to the direction of the mini car. I'm saying this because I've done this thing when I was a kid. The difference was that I used a sail made of plastic sheet that had a lot of curvature, sort of like the umbrella. I did it on a boat and it moved forward. The moment I removed the sail, the boat started moving in the opposite direction. So, I will suggest you try the same thing with an umbrella and a trolley with low friction wheels. It might really work.

[@TheOriginalJphyper]

Your sail was a different shape from the one in the video. The curve of the umbrella sends the air backwards instead of to the side. This can provide a small amount of thrust. It's very inefficient, but it can be done.

[@MakerGuy]

That's what I was wondering about. I wish he'd done the experiment using the umbrella shape.

[@TheOriginalJphyper]

@@crc9564 That's what I said. "It would be very inefficient."

[@n4rzul]

Yeah, I'm quite unhappy about that. Annoyed to say the least. If you are gonna go myth-busting, missing details like this destroys your own credibility. He's not wrong about why the flat sail doesn't work, but that isn't the point. With the flat sail, all the wind is being diverted evenly to both sides as well. All in all bad video this.

[@the.littlest.toaster]

The guy is on a electric skateboard imo

[@TheOriginalJphyper]

@@the.littlest.toaster That's possible, but it still doesn't excuse the sloppy testing. If you want to disprove something, you can't change the variables like that. If he tries it out and it doesn't work, I'll accept that, but considering the Mythbusters tried it and succeeded (albeit with boats instead of skateboards), I have my doubts.

[@quahntasy]

4:06 *the best pirate you'll ever see.* Meanwhile his neighbor: Oh its him going at it again

[@littleparadox7478]

Seekng this........ "NEWTON'S THIRD LAW" - Crying in the dark corner 😂😂😂 R.I.P.

[@TheAustinHewlettOfficial]

Same!

[@arrowghost]

Beaten by the Mythbusters first.

[@adityaravi3180]

Hahhaha

[@teslaplusspacexisdad7295]

No bro, why? ,it follow 3rd law only. If doubt the watch the video clearly!

[@satrioesar7151]

Newton be like: Hold up, wait a minute

[@plotwist1066]

the umbrella curves outward, you should try the umbrella not flat surfaces like cards

[@Walliam-hw3dp]

MOMMY! THE CREEPY MAN NEXT DOOR IS TRYING TO FLY. . .

[@dancoulson6579]

90s kids - "Haha cool. Look at that man. He's making stuff, maybe he can make us a go-kart if we offer to mow his lawn." Kids today - "Thats too scary and creepy. I'm going to stay indoors instead." ...Such a depressing world we live in now. Everyone's scared of everything. We're going to be in the dark ages again if this attitude doesn't change soon.

[@KZHVNKLM]

I agree with you,@@HelloKittyFanMan.

[@bklock7]

Hey man ... do a SECOND round of experiments with this, where you use TWO leaf blowers blowing in opposite directions, and place a large sail in front of only ONE leaf blower. THEN you'll be legitimately propelled by sail power, but I suspect that you might have to have a really powerful leaf blower or multiple leaf blowers forward and multiple backward. What you might find really fascinating is that with neutrino and/or sub-neutrino emitters we should be able to do this exact same experiment with a starship and be simulating gravity for propulsion. Gravity is, after all, nothing more than asymmetrical permeative particle fields ... dramatically stronger downward permeative particles fields around celestial objects. And while the neutrino/sub-neutrino emitters might have to be EXTREMELY high-power ... this really might suffice for interstellar propulsion. All we need is a free-energy device to power the emitters and we're as good as escaped from Sol. The Law Of Physics is this: Continuous immersion in approximately isometric permeative particle fields automatically causes a gravitational effect. [12-13-2020]

[@Timotheeee1]

you need the sail to be bent so that the air get's thrown towards the back instead of towards the side, then it works. try it again with an umbrella

[@PronteCo]

or.. you can just point the leaf-blower to the back and enjoy a better efficiency

[@johnnyragadoo2414]

The way reversers work on jet engines (or on jet boats).

[@DaneArcher]

@@PronteCo Agreed, but you're not going to get a million hits these days using that technique :)

[@struckfire3337]

Thank you you even said just like in the video this was nothing like in the video

[@metamorphicorder]

Thats not going to make a difference. There is a principle that allows a body to blow on its own specially shaped sail and produce movement, but for a given power source its always mote efficient to just directly use the power source to produce direct thrust. The man in the mop bucket had a scheme going on.

[@jxceuu]

why did i get an ad of a man stepping on a lego and spilling tea everywhere

[@Srikrishnakarthik]

Instead of a plane board of it was curved then the kart would move, depending on curvature. Jet planes use that for reverse thrusters.

[@jamesridley184]

Exactly what I first thoughts where parabolic shape like the umbrella

[@strangeclouds7]

Doesn't matter

[@cakeyeater7392]

The point is that the force of the leaf blower is accelerating backwards, and any air dispersed from the umbrella would have less force than the leaf blower. The guy with the umbrella just had a motorized board

[@realkanavdhawan]

The whole point of thrust reversal is to negate the propulsion thrust by applying opposite force which is what exactly happening in the small prototype, the thing is that the cart is already at rest or say equilibrium Mechanical Thrust reversal deploy just in front of nozzle and make use of hot jet Impulse to achieve this Aerodynamic Thrust reversal are extended around the periphery of jet engine and make the use of cold Secondary air reaction to achieve this End result is same but the Mode of reversal is different However thrust reversal are generally not recommend to use by FAA and generally Spoilers, wheel friction and disk brakes are used to achieve necessary braking Under severe circumstances the use of thrust reversal is done

[@CreeperOnYourHouse]

@@cakeyeater7392 The leafblower sucks in air from below, not behind, so ideally there is no thrust backwards, only really inefficient thrust forwards.

[@jamesbond_007]

A crucial difference between your experimental setup and the video clip you showed is that he was "tacking" with the umbrella: it was not directly in front of him, but off directly forward by some angle. To faithfully reproduce his set up, you should (if you haven't already) try positioning the "sail" off the direction of travel.

[@user-ellievator]

Nah, I tried once but I couldn't bend far enou- Oh, sail.

[@vedantawasthi5410]

Wtf lol 😂

[@xeno4162]

@@vedantawasthi5410 ha ha ah

[@seven4280]

Didn't get it

[@Tennarix]

@@seven4280 It's alright, OP didn't either.

[@CreedmanTheBot]

R/holup

[@thewhitewolf58]

Thank you for answering this question. I always wondered if you put a fan on a toy sail boat if it could push itself. So i guess the answer would be whatever pushes the sail needs to be off the boat.

[@yxshmusic]

When I was a child I used to wonder if I could row a toy boat in a tub from outside and it would go forwards. Childhood innocence haha

[@bruv4845]

Lmao me too

[@randyman78596]

Must have been nice.. when I was a child I had 2 jobs, 3 kids, a girlfriend and a wife on the side...

[@BillNye_daRussianSpy]

@@randyman78596 and two lambos. I made a billion dollars an hour, I also helped Apple get out of financial ruin. And here's how you can do it : BuY mY bOoK aNd OnLiNe CoUrSe (no refunds)

[@letsart6434]

For some reason I'm having a hard time picturing what you mean. Could you try to explain it more? Lol, I swear I'm not dumb, but I'm really curious what you mean?

[@AurumFaber]

Yes, please explain

[@brendangarrett7163]

They tested this on Mythbusters (I am currently rewatching it), and they found that they could get it to work with a powerful enough fan. I was hard to control and they would have been faster with the fan facing the other direction, but it did move.

[@defaultusername123]

*I READ THAT VIDEO TITLE VERRRY DIFFERENTLY LOL*

[@HDestroyer787]

I read it snail

[@daviduprichard8343]

Your defo too young to understand what he was talking bout

[@TheerthaCreations]

SLiT

[@dhiegosegundo2303]

I’m 14 year old and I didn’t understand

[@daviduprichard8343]

@@dhiegosegundo2303 I'm 15 and I understood it

[@Muhammed.Yaseen]

YOU DIDN'T SETTLE MY CURIOSITYYYY! THERE ARE STILL SO MANY FRIKKIN QUESTIONS!!! And this is something that I've been thinking for a long timeeee

[@fuseteam]

james: "now only if i could steer" ominous voice: "goodbye james"

[@dionnedionne2045]

When a jet airplane lands it deploys a deflector in the jet stream to reverse thrust. Similarly a jet drive on a boat or jetski deflects the power stream with a cupped shield to achieve reverse thrust. Would that not more resemble an umbrella than a flat, "sail"? ....After I made this comment I looked up the janitors rig and agree. Wheels are different when bucket is empty vs in motion and motion is too fast to be reverse thrust on that scale. Proof in concept how ever, although I have not tested this; I believe your kart would propel forward with an umbrella shape sail although not efficiently. I am a subscriber and a big fan of your work and methods of illustration.

[@breadbad1]

I think that when he shoots the air to the umbrella with the air blower , due to the shape of a parabola ,the air is deflected to the back and it pushes the vehicle forward.And it didn't work because you were using a flat sail

[@dogwalker666]

Indeed exactly my thoughts, the thrust was sideways and equal.

[@TheActionLab]

You should try it and I think you will figure out pretty fast if that works, lol

[@SchitzNGigglez]

I’ve explained this to a friend a few times! I immediately debunked the video and he was unhappy. The best comparison I could think of was putting a parachute behind an air-boat... 🤷🏻‍♂️

[@824justice]

You should have used some type of curved surface to have the air travel in a reverse direction (if that makes sense). I thought that because the sail you used is flat, all that energy got wasted because the air was traveling no where. Shifting all the air into one direction would push you forward, backward, or any direction you'd like. My reasoning is horrible and I don't know too much about this but that is what I was thinking... someone please clarify what I am trying to say please 😭

[@franciscojavierramirezaren4722]

Inner force, pseudoforces, google it...(its not what you said..)

[@georgehill3087]

Yes, that's how reverse thrusters work. You are redirecting the direction of the air flow. If you can redirect all of the air to flow 180 degrees, it's essentially pointing the leaf blower backwards. Equal and opposite reaction will do the rest. There are energy loses due to friction, but that's not the point here.

[@sklanman]

From what i recall in my prior youtube education, is that a sail on a sailboat works more like a WING, and it is therefore possible to sail INTO the wind. What you created is not a sail in the sense of a sailboat, but more like a windshield.

[@nion_jojo]

I think if you bend the glass plate like an umbrella,so that the force of air only direct on one direction instead of making it flat as in this case(flat glass is making the air scattered in every direction)... I guess then it should work..i don't know..you tell me....

[@caodesignworks2407]

No, because you'd still have to overcome the force of the fan.

[@OmegaF77]

@@caodesignworks2407 The how do you explain jet reverse thrusters? Magic?

[@productiveindian1730]

@@OmegaF77 yes

[@billgeannaris8919]

@CAO designworks but then also what about how if you hold your umbrella in the direction of the wind during a storm its gonna pull like crazy, thats basically what the leaf blower simulates

[@caodesignworks2407]

@@billgeannaris8919 The wind isn't attached to you, so the force wouldn't be pushing against at the same time. The only way this would work to a measured degree is of the umbrella could direct the entire flow of air backward making a retro reflector. Err, retro engine? I forget what it is called. It basically redirects the air behind it. Kinda useless on such a small scale with those weights though. Which is why this guy is using an electric skate board

[@derffurwood4820]

Somehow I feel smarter after watching this video. Thumbs up Action Lab.

[@inuka6969]

me: I wanna ship. mom: We have one at home one at home: 3:59

[@LycheeGuy]

That's the greatest pirate I've ever seen. So it may seem. 4:00 *pirates of the Caribbean theme plays*

[@Mishanya442]

Jet reverse be like "Am I a joke to you?"

[@Rowrin]

Watching the janitor video more closely you can see he is shaking the umbrella. This is what is generating the net force. Because of the umbrella's shape, when he's pushing it forward, it is more aerodynamic, and when he's pulling it is less aerodynamic (basically the way a jellyfish swims). Basically he could do the same thing but without the fan.

[@Thami0_0]

Lol at first I thought the title was "Is it possible to blow your own mind" lol 😂 🤣 Edit: Omg I actually thought he said snail until I watched the vid lollllll 🤣 😂 Notice: i watched it day after I commented cuz I had to sleep and there wasn't enough time to watch.

[@hawkwind769]

You got to have a couple ribs removed

[@zmeygavrilych]

"Is it possible to blow your own job?"

[@saminder987]

And i thought "is it possible to blow your own _deck_ "

[@HK-sw3vi]

My old neighbor did it, wasn't pretty

[@standardheat-fs8159]

@@HK-sw3vi A friend of mine did that too!

[@alecburrow9064]

The mop bucket board?

[@ivan-Croatian]

Imagine what neighbours are thinking while these episodes are being filmed. "That damn lunatic is doing it again. We gotta sell this house."

[@eightdogstreet]

imagine taking a jog outside your house then seeing a guy just vibin like that

[@maintenanceworker3838]

Im disappointed that you dont see the issue with your video. The curvature allows the wind to blow behind where the straight sail only lets the wind blow to the sides. Please figure out where your math went wrong here before posting a new video from all the negative comments. Also try and figure out what angle gives it the best speed.

[@franciscojavierramirezaren4722]

Inner forces, pseudoforces, google it...

[@spinelessmoderate8715]

Just bought the experiment book you wrote with your wife. Excited to do those experiments with my son! After watching your anti-bubble video I repeated it with him. We really enjoyed doing it together!

[@thomashughes4859]

My _cartoon_ childhood was a lie when I saw, I think, Daffy blowing his own sail. Later, I propagated the lie when, showing my children _Veggie Tales_ , Larry was blowing his own sail away from Bob ... :( Thanks, mean ol' Action Lab! :D :D :D

[@Psylent]

It is possible. Watch other videos on this topic. Mythbusters is a good starting point. It confused them at first too

[@Leverguns50]

The problem is with your sail is flat because if the sail is rounded when the wind blows into it, it will come out of it pushing the opposite direction there by pushing you forward the guy was blowing into something that look like an umbrella so the air was going in but it was coming out in a different direction there by pushing him forward, your wind was blowing straight against a flat board pushing out all directions equally not calls in forward motion however if you curved it like an umbrella shape when the force of the wind blew into it it would be curving around backwards coming out of it there by pushing you forward

[@mistersaur]

Let me guess... 1:38 is how your grandparents went to school when they were young, right?!

[@justanotheranonymous4381]

You have to shape the sail to guide the air backwards. If you noticed the old guy was using an umbrella not a sail. The umbrella is curved and when you blow on one side the air curves and is redirected backwards resulting in thrust.

[@rheo2342]

Well ... Forces involved in this experiment : never gonna give you up.

[@rheo2342]

Not a rick roll : kzbin.info/www/bejne/mZ3amH2ViZeWmrM

[@car_rar]

@@rheo2342 there's no video of it so it technically isn't a rickroll

[@rheo2342]

@@car_rar That’s what right! I am truth full. ( I do not even lie in among us )

[@rheo2342]

@@car_rar kzbin.info/www/bejne/qKKQeGmOrNyaetU oh so you are a hacker?

[@leadreviewer3257]

Interesting so what if instead of placing a board in front of the fan you put a paper funnel in its place.. Would that make for a faster propulsion?

[@TheCuriousGuyYT]

*Random Fact* : You are more likely to be killed by a champagne cork than by a poisonous spider !!

[@user-ellievator]

Not you though, I dumped a whole bucketload of spiders i n your house. 8-D

[@divyanshaggarwal6243]

@@user-ellievator rip him i guess

[@Sam_on_YouTube]

Individual odds may vary.

[@dogwalker666]

Unless you work in the poisonous spider enclosure at the zoo.

[@I.am.Sarah.]

You're right as spiders are not poisonous. They're venomous 8)

[@czakolo]

I am also not saying the video is true, but... Sail on the boat is not flat and move it mainly not because wind pushes the boat but because under/over pressure is created around the sail. That's why boat can move almost against the wind. Try it with curved sail and let see then. Good work and nice videos. Thanks.

[@briancoverstone4042]

Today KZbin popped up: "Is it possible to blow your own..." The Action Lab. Oh right, duh, "the action lab". This is educational.

[@MammaOVlogs]

Neighbors all watching out the window, "what is he doing now?"

[@Choccy_Milk_1]

Ahem he had an umbrella which propelled him more the curve acts as a redireter for the wind causing it to move more

[@matthewmclean9012]

Yea but the wind is still hitting it

[@HH-pj6he]

he had an electric skateboard underneath the mop jawn... that’s actually why it worked

[@MickeyKnox]

03:56 That's exactly how Jack Sparrow started his career as pirate

[@realcygnus]

Actually you can, with enough thrust. I think Mythbusters did it. Its absurdly inefficient of course.

[@theriddler24]

They did, I think it was on water. So less friction.

[@TheAustinHewlettOfficial]

Remember that every action has an equal and opposite reaction. So if you have a jet fan pushing against the sail, while the jetfan is on the boat, there is also a jetfan of force wanting to push it in the opposite direction therefore making the net force 0 and it stays stationary. Hope this Helps! -Austin

[@jrekur]

Let's say the umbrella is md-80's nozzle..

[@drsquirrel00]

@@jrekur If he blows into the one side of the umbrella, its possible the airflow is redirecting. Sails don't normally work totally facing the wind either.

[@realcygnus]

​@@TheAustinHewlettOfficial Technically speaking it CAN indeed be done. True its beyond stupid inefficient but, with enough thrust the force vectors won't exactly cancel, they can scatter enough as to become unbalanced. & thats even regardless of the shape of the sail. Such conditions could of course probably occur more easily with cone shapes. Real world physics typically aren't so Ideal. & engineering is often about assuring things become as Ideal as practical. Even in this situation the net force was most likely not exactly ZERO, Just not nearly enough to get going.

[@christianharriot1578]

Mythbusters did this in a boat with little success. I thought then, as I do now, that blowing up and over the front of a curved sail would have two effects. 1. Moving air will create lower pressure on the font of the sail. This difference in pressure will be minimal but not zero. 2. The curved sail will cause the coanda effect and direct air mass backward. These two should het your cart moving at least a little. Also, with your air steam pointed directly up, it will show that it is the air flow around the sail that is responsible for “lift.”

[@contagiousingenuityagency5273]

Alright @Action Lab, this has probably already been mentioned but I'll say it anyway. The madlad in that video used an umbrella, not a flat sail or board. What happens in your case with the motorized sail contraption is the force vector of the wind created by the prop/leaf blower is redirected to the sides, producing two equal (or not) component forces perpendicular to the main flow of air. With that said, the air from the leaf blower in that video was directed towards the center, turned around due to the half spherical, somewhat parabolical shape of the umbrella, and deflected in the reverse direction, thus producing rearward thrust. So just like​ @Black70Fastback mentioned, the concept is very similar to the thrust reversers of an airplane, not the sails of a ship. Hope that makes the slightest bit of sense.

[@Ktulu789]

Oh, a believer! Man: You can clearly see a skaboard under the bucket. No, those are not the bucket wheels. No, the umbrella will create a lot of turbulence, it's better to just use the leaf blower alone, and even better to just ride the electric skate board.

[@contagiousingenuityagency5273]

@@Ktulu789 What, lol? 😂

[@Ktulu789]

@@contagiousingenuityagency5273 I thought you spoke English 😅 Sorry, my bad.

[@contagiousingenuityagency5273]

@@Ktulu789 I thought you spoke it too - talking to the wrong person then, I guess... 🤦 I must have been living under a rock all these years to not know what a skaboard is. 😂

[@tungstentaco495]

the shape of the sail is important. shooting the air into the concave underside of the umbrella would redirect the airflow backward which would actually push the cart forward. If the sail is flat, the airflow would hit the surface and just be redirected sideways which wouldn't create any forward or backward motion. Try it again with an umbrella or some other bowl shaped sail. it should work then.

[@shadowl.a.b5663]

Everyone is first,but until then when they refresh the comments🤣🤣

[@brohith1722]

How to do that

[@whitepirate4098]

@@brohith1722 u slide up like Up 👆

[@GrimmHades]

I’m curious if the shape of the umbrella kicks the air back behind making it possible. Please get a sturdy umbrella like his and retry

[@mechatech9897]

3:58 "That's the best pirate I've ever seen."

[@kovanovsky2233]

*Pirate of the Carribbean theme intensifies*

[@sorasarielcl]

I can see that the neighbours won't ever have a boring day in the neighbourhood with you as the mad scientist.

[@95JakX]

Some reason my brain likes to see this title at a glance as: “Is it possible to blow yourself?” Which we all know is a resounding “yes but only with a week or two of intense yoga”

[@DeliciousGhee]

POV: you just finished watching sidemen reacts

[@alfianross2873]

but your sail aint a sail. it must be secured at the sides. when your sail moves to the sides, so does the air.

[@TheAustinHewlettOfficial]

His sail is a studio light reflector. LOL!

[@notlewisz3713]

So you think it would work if he had an actual sail? Lol

[@alfianross2873]

@@notlewisz3713 kzbin.info/www/bejne/pGrGlZmLjtClgrs

[@jabhomemonitoring]

Great video! Short, sweet, and to the point.

[@daviduprichard8343]

First off the sail you used is to big for the amount if air you were blowing on it, that's why the janitor used an umbrella and it works

[@thierrypauwels]

You are holding the sail perpendicular to the wheels, and blow parallel to the wheels. Is there no possibility to let both make an angle ?

[@Jeon1958able]

No. Newton's third law. Action/Reaction.

[@quantumsoul3495]

That's what I thought

[@kaminelson1277]

But then concave boi go brrrrrr

[@davidmccoy1378]

I guess people could make a living redoing all the myth buster experiments.

[@kaustubhsharma8003]

I'm second, because everyone else is first. 🤣🤣

[@MaxBrix]

My neighbors are like, "look, it's the 'adult' who plays films myself playing with Lego.

[@saikesav4992]

Fastest first comment of my life

[@Thindd]

What??

[@fatsausage-animaatioita4717]

let's get his first comment ever to 300 likes or more

[@wiz-healedbykfp624]

Wait but when i click your channel it said you commented 2 times already on this channel.

[@ramadavince6611]

lets go chimp...

[@ramadavince6611]

@@wiz-healedbykfp624 first one to comment/comment befor nobody comment on a video. not first comment

[@jesperlett]

I think a part of the explanation missing is that when the air hits the flat wall or sail, is shoots off in all directions parallel to the wall and creates a net zero force. if you where to try with an umbrella, the air would bounce more backwards and create a net force in the direction the fan is blowing. It seems in the umbrella footage, the guy lets the air from the leaf blower follow the inside curve of the umbrella, effectively redirecting the airflow backwards.

[@JamesBailey123]

Myth not busted, come on that's a poor effort. The umbrella doesn't block the air, it redirects it into a funnel that blows air backwards around him. Think of it like if you attached two tubes to your leaf blower and pointed them behind you by bending them around while pointing the leaf blower forward - he's doing that.

[@zosowon]

I tried the exact set up and yeah you keep the umbrella tilted up so the air hits the ground, I got up to 88 mph on the highway and got stopped by the highway state police and they gave me a ticket for being awesome, now I’m a felon.

[@kennethjohnson9469]

myth busted

[@ayanbanerjee4177]

Does the same rule apply for light sails

[@kezmsfilms1300]

As a kid I saw a Looney Toons skit where Coyote used a propeller engine in a bathtub to move, and since then I have always had it in my head of "Would that work?" Now I know, after years, it would not XD

[@alexzeuspresinede73]

try using an curve sail

[@suyashverma15]

Please also try it holding the sail in your hand without fixating it to the vehicle itself, because then I think it will bounce off the sail and be able to move, just like a rocket thrusts against the earth surface and move upwards, this is also an interesting aspect of it to think about, I think. Stupendous video as always. ☺

[@RafaelBenedicto]

His hand would still be attached to his body, and his body is attached to the blower and the vehicle. The result would still be the same. A rocket isn’t attached to the ground.

[@heddevh]

Saw a video like that and that's how I ended up here. Thanks for testing it, was very confused for a second there!

[@KangJangkrik]

Me: **designing free energy boat* Dad: that's not gonna work kid The Action Lab: that's not gonna work kid

[@SIKEITSPAT]

Yeah it definitely works. It depends on the circumference and depth of the sail. Turning the sail, with maneuverable wheels and arming bars for parallelism, the sail should work with the leaf blower. Whether if the leaf blower was 5 feet from the sail or 15ft. Sometimes making a directory box for the airflow actually carries quite impact on ratios. This in deed works. Because the sails do work if worked properly. Like putting a slim sail on a rip stick. That's something that seems impossible but imagine your body becomes the sail, having something flat in front of you is just applying forces against the motion in which the frame can only be directed.

[@DrCarbomb]

That leaf blower looks like it might be one that sucks in air perpendicular to the direction of thrust, as opposed to air being moved from behind the fan. Basically some of the airflow vector being perpendicular to forward force vector, instead of just linear vectors. Couple that with basically a parabolic sail, and would that have an impact? Might that change things a bit?

[@jehmarxx]

Some fool doing some shenanigans outside during pandemic. Him: *epic cinematic background music.

[@Dartanman]

Could it work if you could somehow trampoline the air backwards even faster than you're blowing it forward?

[@djacob7]

He should have tried an umbrella-shaped sail. The curved umbrella guides some of the air towards the rear, and that helps the cart go forward.

[@mohduzairrusli3741]

“Dad whats that sound?” “Thats our neighbour doing weird stuff again”

[@viniciusvan8589]

OH MY GOD! THANK YOU FOR THAT VIDEO. it was really hard to convince my family that the umbrella guy was fake

[@abdelmoneim3796]

I respect the man and the channel. Well done Sir.

[@nonoDIY]

I always wanted to know if you would blow in the paragliding wing would it create a lift? Even if it is not going forward or backward.

[@EmmaRides]

Does the concave umbrella shape make a difference?

[@rehan_requiem]

This person is the full body manifestation of " I don't need sleep I need answers"

[@ritamalaviya7720]

I think of the surface area of the blower will matter a lot with speed blower coming on the second spot. My visualisation says that a small curved sail would work whereas a big flat sail wouldn't. Thus the grandma was able to move very fast. It would barely work in action labs case as almost all air was concentrated on a tight spot. We can relate Pascal's law of hydraulics here and it would be safe to say that the force with what the air blower was blowing was the same accelerating force as the second action labs case with loads of friction. So the speed was less in the first case when action lab blew the e blower on the sail. Theoretically it would be the same speed as the second case action lab did if friction was neglected. On grandma's case, the force was multiplied as the area Now, here the blower was also concentrating on a perpendicular spot of the umbrella. BUT this force got amplified BECAUSE of the curved surface of the umbrella. This when doing the math, we get the blowers force to be quite less than the thrust. Please correct me if I am wrong because I am also learning and thought it scientifically. I also make mistakes. So don't judge me if the answers wrong.

[@Octavio-mk5mv]

But an umbrella is concave so the air going to the center by the leafblower was redirected to the side and then backwards impulsing the skate fowards. Am I wrong?

[@duran9664]

You look like The Master & Commander sailing on that board 🎩🕵🏻⛵️

[@cocoandiesnow7797]

Can you please make a leaf blower possible to fly like a hoverboard ???