Aerodynamics Explained by a World Record Paper Airplane Designer | Level Up | WIRED 

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16 minutes of watching a guy talking about paper airplanes i do not regret it

The combination of his explanation and animation and his little bit jokes result into understandable explanation

This guy has great stage presence. He’d be a great host for an educational tv show about physics

Me: makes paper airplane so i won't get bored of studying Also me: realizes there is more maths in making a paper airplane than in my book.

Teacher : 'you can't have a career by making and playing with paper airplanes.' This video : 'are you sure about that'

He's that one teacher everyone wants

now, my paper airplane going to have better dynamics than a boeing 747!

Nice, Now I can beat my 5yr old nephew in paper plane flying contest

This is one of the best video explaining aerodynamics out there. He dose a fantastic job adding the simple concepts to the complex. Really well done!

Even his hair looks like a paper aeroplane

I have just won a competition for paper aeroplanes in my school using Suzan (the last one)

I thought I was about to see a tutorial on building paper planes, instead I found out an amazing class of physics, well done. Thanks

I didn’t know i need to know all this. Wow

Lift to Drag Ratio = Glide Ratio 7:41 ---‐----------- Big wings = More drag||Small wings = Cut through air 7:21 --------------- Air will follow the shape of any object 4:29&10:27 --------------- Stall = Is when the air cannot follow the shape of the wing 10:33 --------------- Drag = The Air molecules are trying to halt the kinetic force of an object 2:09 --------------- Boundary Layer = The air stuck to a object(Which is spinning) will move with the object 12:24 ---‐---------- Slower fluid speeds = High Pressure Faster fluid speeds = Low pressure 3:37 -------------- Wing Loading = Weight of Plane ÷ Surface of Wings High Wing Loading: Moves faster for lift Low Wing Loading: Slower to life the weight 6:36 I'm done now😃

John Collins is a great presenter and speaker as well as incredible paper plane master.

I have been teaching people to fly for over a decade and thought I had a good way to explain the magic of lift. This is the first time I have heard the term "coanda effect" but it makes so much sense. Never stop learning. Thanks for the great video.

His jokes and perfect explanation as well as his animation makes it even better to understandable, and even his hairs look aerodynamic😜, But well job WIRED👍!!!!

THIS IS GENIUS!!! it's so funny to watch this, and interesting as well. The whole second class of middle school I folded paper planes with my friend but this IS a whole new level!

1. As far as I know, aerodynamic stalls due to slow airspeed don't exist, "Stall Speed" Is the lowest speed you can fly level until you have to point your pitch up too much that your wings stall out, IE Your minimum level flying airspeed. 2. Bernoulli's explanation on wings is still correct, air can compress and that's easier for it to do than move air around it, so you can think of it as a pipe, partially. 3. You forgot the coanda effect and euler equations relations, A curved streamline has a pressure gradient, higher on the outside of the curve, lower in the inside of the curve, If I can remember correctly, that's due to the inertia force / centripetal / centrifugal (whichever is the right term, I genuinely can't remember but you get my point), And due to this principle, Where there is a curve, there is a pressure gradient, which is why planes may also have concave curves on the bottom of their wings in some areas to slightly increase pressure on that side. Learn engineering has some good videos on it, But either way, all explanations are correct and provide to the lift on the wing, it's a complicated yet beautiful balance of physics in play to achieve flight and aerodynamic lift forces, excluding the false "equal time arguement", because believe it or not, Air particles can't exactly think, communicate and understand eatchother. Edit 1 : About the magnus effect / spinning ball, you can also say that since air at the bottom is slowed down and crunched up, and air at the top is uninhibited, theres a high pressure at the bottom than on the top, creating lift.

Im a 4th year aerospace engineering student and this was the best explanation of basic aerodynamics ive heard so far

holy cow, what a guy! I didn't expect the video to be so captivating!😄

Passionate playful knolegable people is what this world need the most. Loved this.

My 11 year old was fascinated with this video and made me watch it. It was fantastic! John Collins is a great presenter. Thank you!

the teacher who would never mind throwing paper planes over him during class

He’s an EXCELLENT teacher, loved it!

2:39 love that, he shows all of the forces. Helps me understand alot

If physics was taught this way, we would have seen lots of inventions in the world of physics. Crystal clear, comprehensive analysis

The most beatifuly made match between practical engineering, science and an hobbyist artwork that I've yet to see on RU-vid. Thank you,

what got me into paper airplanes is how when you throw an airplane in a window shut moving bus, it appears to move fairly fast but in reality is actually traveling the 60+ miles the bus is moving as well

This is the easiest way someone could explain basic principles of fluid flow and aerodynamics. Years I've spent trying to mug up all of these concepts condensed into single video. Bravo.

This is freaking amazing. As a physicist, i understand the physics of fluid dynamics but I did not learn the aerodynamics applications of it to real plane systems. The use of paper planes and modifying such that you can see the different effects is such a good way to explain both aerodynamics but also how it pertains to real planes.

Mad respect to John.. passion at its best. Amazing.

His way of teaching is very interesting to watch

This is a truly amazing video. It burst my bubbles about fluid dynamics and aeroplane lift

Yesterday evening I watched two videos-one featuring an MIT lecture by an MIT test- & fighter- pilot engineer, the next by a college professor teaching flight school students. Collins’ concise, erudite and amusing lecture on aerodynamics topped them both at altitude!

I wish my science teacher was this passionate!

He's really good and fun to listen to. The animations and edit is aldo great!

One of the most fun engineering videos I’ve ever seen. Wish my lectures were this engaging!

Hated physics classes, now this guy has re-ignited my interest...learnt a lot in my quest to make a simple paper airplane for my kids..complicated and simple at the same time.

The downward air at trailing edge is lift? What about drop in pressure on top of airfoil because of velocity increase?

You also can add oblique triangular wings to tube by folding. it makes it go more stable and more in a precise direction. Or thats how I make my tube paper planes.

The science in this video is phenomenal! The combination of the subject matter, the speaker, and the visuals is zen.

Collins’ book is great. My 8 year old son got it for Christmas last year. We’ve had hours of fun together with it. Highly recommend.

He's a very good host/communicator

Suznane is like that end game plane that 's high on everything. The plane you want.

Spent my whole childhood making paper planes and they did fly but never thought of aerodynamics. We used to go up to hill and see them fly. Some did really well others just fell few meters away. This last year I wanted to remember my child times and went up to a hill and made one trying to do it more carefully and the result was amazing. It flew for more than 2kms.

07:27 "Let's go one step further and see how wing loading can affect the distance in flight" Fun fact: when you're gliding... it can't. Two externally identical airplanes, one heavier than the other, will have the same L/D ratio, hence the same gliding distance. The effect here (with paper airplanes) is related to the "thrust" (or "dart", or ballistic) portion of the flight, before the paper airplane stabilizes at is trimmed gliding speed. Once gliding at its optimum speed, gliding distance will not change with weigh. IOW: Instead of being shoved at maximum speed, if two externally identical paper airplanes of different weights were just accelerated and let go at their respective optimum gliding speeds, weight (and wing loading) would not matter and they'd have the same gliding angle and range.

Wow. Mastery level explanation of aerodynamics. Really intuitive and explained so well. Plus, that was really cool! I wonder where the design for Suzanne resides online.

I just have to say 1 thing is this is the best aerodynamic teacher

Unexpectedly interesting. You me watch 20 minutes of video about paper airplanes with an open mouth, and that's amazing

Yes, a video showing how to fold the Suzanne would be appreciated.

Some years ago I was grasping that Bernoulli was not the main responsable of sustained gliding (paperplanes don't have the shape). I even managed to go as far as the koanda effect but couldn't pull out the 3rd Newton's law in place. I even asked some physicist and searched for some videos and texts without answers. I am jelaous and grateful for the great video.

I may be ready for ufos & jet propulsion now; whole much thank you!

The official president of Uncles

He's not just a paper airplane designer and maker but also a scientest

Awesome video. I loooove Science. Was one of my favorite subjects in school

I REALLY NEEDED TO KNOW THIS!

I had a book as a kid in the 90s with all sorts of designs for cool paper airplanes that would do loops, or rolls, or boomerang, etc. I had endless fun with it. But I can scarcely make the usual bifold design most people are familiar with these days. My wings always end up crooked, even when I use a straight-edge.

He explains really well!!

I was quite into paper planes when I was younger, so was familiar with some of these, maybe all other than the canard. Basic square was my go to, though my consistency on wing depth wasn't perfect.

in scouts, id just fashion a dense 3 inch dart out of paper, and just YEET the thing. always won.

12:12 woah! No way he did that! That was awesome

This was an interactive science class not a class on how to make paper planes. Thank you John

If my teacher of fluid dynamics explain like him, I would have better grades for sure.

Hi mr john your aero dynamics are the best and i couldnt understand this theory i ve been trying to make paper plane by watching other videos. today i made a paper plane using the techniques you tought and that was like a miracle to me because i ve been trying for weeks to make a plane. thank you very much ps- nice joke about the wings hope you are fine during this period

1:19 buds face 💀

14:42 best one

I'm a professional scientist and these explanations help, but I'll never understand this fully. You can tell me about these forces all day long, and I have done calculations to measure them. I'm glad other people get it.

This is how they make Boeings

I want this guy as our design technology teacher

I teard the paper in the middle of the wing like a spoiler instead of curving it and it worked great

Feel like a true aeromodeller!

Im on a lvl of god now

as a struggling engineering student, this was actually pretty helpful, thanks.

My little boy tried making this paper airplane and we were amazed at how well it went . He loved it !!!

i was eating when this uploaded!!!

I’d be so much more interested in physics if I had a teacher like him back in school Lol

I love it pls make more videos with john collins

This was a great video. I love how you presented this topic. Man there are concepts in this video that I need to revisit and study, but I think it is a wonderful way to expose kids (and adults LOL) to physics and aerodynamics in a short and fun way. Thank you John Collins/Wired. : )

He looks like john cenas grandpa 😂

Directions unclear made a death star out of paper

The way he makes thing clear is awesome.🙏🙏🙏

nice video. it helped me to get a better understanding of the aerodynamics of anything .thanks

Please make a detailed video on how to make the planes!!🥺

Isnt his lift explanation wrong? Isnt the pressure difference what causes lift?

the best explanation of air flow dynamics so far.

I wish I got a science teacher this cool back then

I wish he would have taught me in school. I might not have hated Physics that much 😁

I didn't understand anything but I'm happy cus he's happy

I love how he explains ❤

I don't get why the tube works. If it spins lengthwise, why would any force have a preference for up or down? I can only see how would spin-stabilize.

God I really underestimated .wow! It explained a lot

Bernoulli equation can definitely explain the lift with no doubt for low Reynolds number airfoil. In the ping pong case, the ambient pressure is definitely higher than the pressure between balls, so the pressure push the ball to move to the middle. Bernoulli equation can explain this as well. Coanda effect is just a phenomena, it is not a theory, the underlying theory is N-S equation, in a simple way, it is Bernoulli equation. Your experiment cannot prove Bernoulli equation is wrong, although there are four restrictions for using Bernoulli equation: 1. Steady, 2. Incompressible, 3. Inviscid, 4. Flow along a streamline.

I really needed this!

Thank you! Very informative. BTW "Coanda" is read as in "wonder" with a q in front (2 syllables).

excellent visuals, host, explanation. Really good 🙌

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Just realised so many principles are involved in designing a paper plane in order make it fly successfully

6:26 Wing loading LOL 😂