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Video of paper airplane practice

The video of the rotary paper plane is as follows: the video link first folds the paper in half along the long edge so that the two short edges coincide. Then expand the paper, and a crease appears on the paper. Next, fold the corner of the paper inward along the crease to align it with the crease. In the same way, fold the other corner of the paper inward. At this point, an isosceles right triangle appears on the paper.

Take a piece of rectangular paper. Fold the rectangular paper in half. Take away the rectangular paper that is folded in half and you can see a clear crease in the middle. Fold one side and two corners in half toward the middle crease. Then fold both sides along the middle crease. Fold the folded side up again, and the same is true on the other side. Hold it in the middle and tidy it up, and the simple paper plane is formed.

The paper is folded in half, one corner is folded to align with the center line, and the other corner is the same. Next is the key step, which directly affects the beauty of the finished aircraft. Fold up as a whole, note the length of the black pen line in the intention, when the two lengths are roughly the same, and then fold in half along the middle line.

First prepare a piece of stationery, then fold it in half and then unfold it, leave a false print on the stationery, and then fold the left and right corners of the paper along the dotted line in the middle. Then continue along the half of the folded corner, continue to fold in, take the dotted line in the middle as the basis, fold one side again, and then compaction.

A man with a deep heart?

1. Don't talk through it when it comes to dealing with people. Deep-seated people are usually introverted. They can have insight into people's minds when dealing with interpersonal relationships, but they do not easily express their views. They think carefully and consider the consequences before they speak or do things, thus giving people the impression of being thoughtful and elusive. Look at the depth of Chengfu from the perspective of praise and criticism.

2. Shrewdness. On the surface, it seems that they are indisputable and drift with the tide. In fact, people with deep manners have already been carefully laid out, and this is where their EQ lies. Wise. They have a clear goal and rarely get angry, unless they use emotional catharsis to solve the problem. I'm here. People who are deep in the city will not be courteous easily. They inadvertently get what they want and gain value by keeping a low profile. Calm down.

3. People with a deep mansion are usually exquisite in all directions and have both sides. No matter in life or in the workplace, there is no doubt that people with Chengfu have many advantages. They can not only stand out from the complex network of relationships, but also protect themselves from damage to their own interests. The ability to observe words and emotions. People with deep mansion, they are like chameleons.

4. There are eight characteristics of people who are deep in the city: hidden, stable and peaceful, strong empathy, self-preservation, not transparent, vague, sophisticated. Most of the people who hide deeply and do not reveal the city mansion are very capable, and they do not express themselves easily. But in the critical time, they can always be very steady and comfortable, impressive, unable to find fault with him.

I made a new glider, but there are only dimensions on the drawings. I didn't say how to fix it. Please help me figure out how to fix it.

I have to say, they gave me love and strength. Teacher, please let me say thank you-remember that time, I have a problem can not do, when I went to consult you, it is time to eat. You taught me patiently that although I said I was not hungry, I clearly heard the "alarm" coming out of your stomach from time to time in the silent classroom.

I couldn't wait to run to my favorite swan glider and took a short ride on the train. Suddenly I heard a burst of "ah" screams nearby. As soon as I looked down the sound, I saw a big, dangling ship in the air, bent at both ends, like a crescent moon. My father introduced it to me as a "pirate ship". I like the story of pirates best, the people on the ship are so scared, it must be very exciting! I begged my father to buy two tickets and got on the boat with my mother.

Secondly, motivation. In general, small and medium-sized oil engines use methanol engines. The domestic engine is trefoil, and the price is 46 cheaper. The two-stroke engine just matches the big Venus I'm talking about. It costs about three or four hundred yuan. But if you don't find an old bird playing with the oil around, you must not use trefoil. It's not that it doesn't work or he can't use it, but it's relatively difficult to adjust, and it's really not suitable for beginners to use alone.

The little brothers were overjoyed, but they thought it didn't fly far enough, so they made several bigger ones in imitation of the toy. Some of these imitations were able to fly over trees and some flew dozens of meters away, but one of the brothers' very large replicas failed. But instead of making them sad, it aroused the idea of the brothers to build airplanes.

So, how to write a composition? The following are 10 compositions of the sixth grade footprints that I have carefully sorted out. I hope it will be helpful to you. Growing up is like walking on the beach, leaving a footprint with each step forward. In the years of growing up, there are troubles and happiness; the taste of growth is some bitter, some spicy, and some sweet. Every footprint of growth is still fresh in my memory.

The Wright brothers imitated birds and built a glider, and in 1900 Wilbur flew in the air for a while. However, gliders can only fly by the wind like kites and cannot fly in the air for a long time. So the Wright brothers began to build their own powered airplanes. They fitted the gliders with motors and propellers, and removed the gliders and installed the wings of the powered aircraft. The Wright brothers called the modified plane "Flying".

What if the beam of a model plane is not long enough?

Use a plug-in structure (so it can be split) or the wing beam is connected by a web (it is not necessary for a small aircraft of this size to use a carbon fiber wing beam.

-30 centimeters. According to the information on the X technology website, the most common thickness of the aircraft beam is 25-30 cm. The height of the main beam in the building structure is generally 1ax 8-1pinch 12 of the span, and the height of the multi-span continuous girder is generally 1x8-1max 14 of the span.

Paulownia wood is often selected when making hand-throwing and ejection models. For the material selection of structural wings, such as the wing beam is slender and the main load-bearing part, it is necessary to choose pine with large strength and straight texture. The main purpose of the wing rib is to keep the shape of the airfoil under little force, and you can choose paulownia wood or light wood with light weight and certain strength. Wing root wingtip and other plastic fillers, the force is very small, please do the better, you can choose lighter paulownia wood, light wood or water pine.