Makes sense

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

I figured it was just within the margin of error

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

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

Lol nice name

Had us in the first half ngl

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

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

U almost got me with your name. 32 years

It wont work

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.

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

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.

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.

Fac

{]213

lol

Omg!!

LMAO

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)

RIIIIGHT

As if he has friends (joke)

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

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

yea lol

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

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

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

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

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 guy is on a electric skateboard imo

@@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.

They used a mini jet engine.

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.

Same!

Beaten by the Mythbusters first.

Hahhaha

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

Newton be like: Hold up, wait a minute

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

@@Black70Fastback like an umbrella?

@@cosmicrider5898 lol, yes, somewhat

Captain Joe does a good explanation of how the TR's work kzfaq.info/get/bejne/mcx2jZVeptORip8.html

Running the TR's from a mechanics perspective. kzfaq.info/get/bejne/hNaUaKlplayyiHU.html

Yea but the wind is still hitting it

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

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

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

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

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

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.

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.

I agree with you,@@HelloKittyFanMan.

Wtf lol 😂

@@vedantawasthi5410 ha ha ah

Didn't get it

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

R/holup

I read it snail

Your defo too young to understand what he was talking bout

SLiT

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

@@dhiegosegundo2303 I'm 15 and I understood it

Lmao me too

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

@@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)

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?

Yes, please explain

Exactly what I first thoughts where parabolic shape like the umbrella

Doesn't matter

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

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

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

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

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

Inner forces, pseudoforces, google it...

You got to have a couple ribs removed

"Is it possible to blow your own job?"

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

My old neighbor did it, wasn't pretty

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

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

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.

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

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

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

@@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.

​@@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.

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

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

@@OmegaF77 yes

@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

@@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

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

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

@@user-ellievator rip him i guess

Individual odds may vary.

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

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

*Pirate of the Carribbean theme intensifies*

Not a rick roll : kzfaq.info/get/bejne/mdKnmq2QuZjHlIU.html

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

@@_abk_3251 That’s what right! I am truth full. ( I do not even lie in among us )

@@_abk_3251 kzfaq.info/get/bejne/qNddepmJ3N3LdKc.html oh so you are a hacker?

How to do that

@@brohith1722 u slide up like Up 👆

What??

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

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

lets go chimp...

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

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.

@@Ktulu789 What, lol? 😂

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

@@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. 😂

That's what I thought

But then concave boi go brrrrrr

His sail is a studio light reflector. LOL!

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

@@notlewisz3713 kzfaq.info/get/bejne/pJ-Tl8mGvtHWfI0.html

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.

myth busted

"I don't know. I'm still can't see from when he blinded me with his stupid flashlights."