When I was a child, why did I throw paper airplanes in the head of the plane?

That's a long story.

The folk saying is that the water vapor in the air can attach to the head of the plane, which can increase the weight of the head of the plane and make the flight more stable, but we can make a calculation: a strong adult man tries his best to take a breath, and the water vapor content in it is about 1 milligram, that is, less than 1 milligram, and a paper airplane is more than 3 grams at the lightest, even if all the water vapor in the air is collected and dropped on the head of the paper airplane, it can only have an impact on the paper airplane 1/3000 In fact, the amount of water that can be attached to the airplane is less than one-tenth of the total amount of air, so the change in weight is almost negligible.

So what is the reason why the air makes the paper airplane fly farther? There is also a scientific principle in this, which is a kind of [membrane effect], for example, walking on the ice in winter will be very slippery, and the reason for the slippery is that the membrane effect is at work, when the upper of the shoe is stepped on the ice, the pressure will heat up the ice surface, and then a very small amount of ice will melt into water, and a water film will be formed between the upper and the ice surface, so that the friction coefficient between the upper and the ice surface will be reduced by several times, so that people will feel that the ice surface is very slippery (as for why the water film reduces the friction force, I will not go into detail here.) That problem will be more complicated to explain than the question raised by the landlord, as long as you know that there is a film effect) The same is true for the paper airplane, and the head of the paper airplane will be covered with a film of water, forming a film effect, which will make the friction coefficient between the paper airplane and the air become very small when it is flying, and the smaller the friction coefficient of an object of the same shape and mass flying in the air, the smaller the friction coefficient will be, the smaller the [turbulence] caused by the air (as for the turbulence, I will not explain it in detail here). To put it simply, it is the strength of the influence of flying objects on the air operation state on the flight path) and the smaller the turbulence caused by the paper airplane, the less kinetic energy it loses, and the faster it flies, and the paper airplane thrown at the same angle with the same initial velocity, the faster it flies, the farther it will fly, and that's it.

Uh, I suddenly feel that this question is really not worth it for your score, don't be so stingy, add a little more.

Because that's what Adam did, huh.

When it comes to origami airplanes, everyone must have folded paper airplanes in their childhood. I still remember how we folded paper airplanes. First we will prepare a piece of paper, and then fold it in half into a paper airplane, after which we will make a particularly important action, we will first take a breath at the plane, we didn't think about why before, but we only know that when we see others do that, we have to follow suit.

Now that the little man of the past has grown up, everyone will wonder why everyone needs to take a breath first, and what difference would it make if he didn't. Therefore, some people will ask why they always like to take a breath when flying origami airplanes when they were children?

This type of origami airplane is particularly light, so the area with a lot of folding is heavier, so the top of the head of the origami airplane is heavier, and the tail end is lighter. The reason why we breathe is because the origami airplane remains stable in the air, and at the same time, it can also reduce the frictional resistance of the gas, allowing the plane to fly longer. When I was a child, I saw others do that before, and everyone did the same, but I didn't think about why.

But now that I think about it, there is a scientific argument that Ha Qi can make the origami airplane stable in the air, and at the same time it can also reduce the frictional resistance of the gas, so that the plane can fly longer, which is expressed by physics.

Now that I think about it, it's been a long time since everyone folded the plane. In fact, there are many opinions about the origami plane before it flies, and some people say that it is because of the education of the elderly, and everyone will follow suit when they see the old man doing that. Some people say that fog will shift the center of gravity of the airport, and if the center of gravity of the airport is in front, the airport will become more and more stable.

Some people say that the fog is a place on their expectations for origami airplanes, and they feel that origami airplanes that bear their expectations will fly higher, which is also a psychological factor.

Why do you want to be angry with paper airplanes, in general, the first thing is to place expectations, then to make the airport stable, and finally to follow others when they see others doing it. However, a more reasonable point of view may be to better keep the origami airplane stable in the air, and at the same time reduce the frictional resistance of the gas, so that the plane can fly longer.

It is because only by hazing air can the air resistance be reduced, and the paper airplane can be kept balanced during the flight.

In order to keep the plane balanced while flying and be able to fly farther, many people folded paper airplanes when they were young.

The reason for this is that it reduces the drag of the air, allowing the aircraft to maintain better balance and fly farther.

This keeps the balance and reduces the air and increases the humidity. And there is a scientific truth.

1. Increase the weight of the head to make it more stable. Fly further.

Second, the foolish meaning represents that the master wants to fly higher.

1.Hope.

2.Smoothing the aircraft.

3.Increase the weight of the head of the aircraft.

4.Blow off the confetti from folding.

5.Air is blown into the wing, bringing it closer to a lift airfoil.

At present, there are several heard, one is that the leading edge of the paper airplane is often concentrated due to the fold line, and there are some fine confetti, and those confetti are blown off by blowing to fly smoothly, and the other is that the other thing that seems to be applicable only to specific conditions.

I believe that my friends have done such a thing when they were young, that is, every time they fly a paper airplane, they will take a breath in front of the plane. If you don't take a breath, you will feel that the plane is flying out and has no effect. Speaking of which, some people wonder why they have to take a breath every time they fly a paper airplane.

Have you ever noticed that we always like to take a breath when we throw paper airplanes, and why is that?

Before the origami airplane, the breath is to bring moisture to the paper airplane, so that the head weight of the paper airplane increases, which will make the plane fly smoothly.

It is said that it is to control the balance of the paper airplane during the flight and not deviate from the course, but there is no scientific basis.

According to scientific research, Ha gas is actually not helpful for the flight trajectory of paper airplanes. People just want to sigh, representing an expectation that paper airplanes will fly farther.

Personally, I think that the reason why we should take a breath before throwing a paper airplane is because we can make the paper airplane fly longer in the subsequent air flight.

Ha breath can make the nose of the paper airplane heavier, which can make the plane fly more smoothly.

1.Hope. 2.Make the plane smooth 3Increase the weight of the head of the aircraft.

Why do you have to puff at the nose before putting paper airplanes? I used to play paper airplanes for so many years, and I did the action every time, but I never thought about why, and then I didn't play it, so I naturally didn't think about it even more.

From a physical point of view, haze will lead to three results: the moisture in the mouth will make the nose damp, so it will become heavier; The hot air coming out of the mouth will make the nose lighter; The first 2 situations exist at the same time, so it doesn't work... Thinking about it left and right, I feel as if any possibility is possible.

I can't think of a reason, so I came back to ask for help on the Internet, Baidu searched, it turned out that there were many, many of the same questions, but after a specific look, there was no answer. The answer on the Internet is the same as I imagined, inconclusive: some people say that it is purely because of the teachings of their predecessors, that is, grandpa teaches father, father teaches son, son teaches grandson, but no one knows why they do it.

Typical Chinese folk culture transmission method. Someone brought out the "Paper Airplane Dynamics" written by someone abroad to analyze, saying that if it is Haqi, it will move the center of gravity of the aircraft forward, and if the center of gravity of the aircraft is forward, the aircraft will be more stable (I personally agree with this point of view). I remembered that I had folded an Eagle plane before, and the characteristic of this folding method was that most of the paper was gathered in the nose, making the nose very heavy, and in fact, the Eagle plane was also more stable when flying.

Some people analyze from a psychological point of view, saying that it is to pin their expectations for paper airplanes, which is the same as many people who puff in the heart or fist on tense occasions. And paper airplanes that carry their own expectations will fly even better.

There are also people who start from reality, do their own experiments, and come to the conclusion that the plane of Ha Qi flies more steadily and farther than that of Ha Qi (then it seems that Ha Qi is really not just a psychological use) Of course, there are some pure nonsense, saying that it is to warm up the engine or something... Hehe, but no matter how you say it, there is still no authoritative final answer, and the exploration of this question is not over. However, while thinking about it, it also reminded me of a lot of my childhood, and I remembered when I was a child, folding paper airplanes with my friends and flying them together, which was a good way to relax from the intense work

Cushions the pressure of the cold air in the air, tilting the nose of the aircraft upwards to fly higher.

Replenish energy, just like in a kung fu movie, divide your own qi into a plane.