Origami airplane course

The origami airplane course is as follows:

Preparation material: rectangular paper.

1. First prepare a rectangular piece of paper, and then fold it in half, with the crease as obvious as possible, as shown in the figure.

2. Unfold the paper, and then fold one corner in half along the middle crease to form a triangle, as shown in the figure.

3. Fold the other corner in the same way, as shown.

4. Fold it in half again along the middle crease, as shown in the figure.

5. Fold the other side as shown.

6. Fold the paper in half as shown.

7. Fold a part of one side of the paper from top to bottom, as shown in the figure.

8. Fold the other side of the paper in the same way, as shown.

9. Spread both sides of the paper and the plane will be ready.

Knowledge expansion:

1. The origin of the original paper plane

The history of paper airplanes can be traced back to China in 400 BC. At this time, people used natural materials such as bamboo and bird hair to make airplanes. With the invention of paper, people began to use it to make paper planes. The earliest paper plane was a simple triangle, which greatly limited the flight distance and time.

2. Promote technological improvement

As time goes by, people find the fun and value of paper airplanes more and more. 19 At the end of the 20th century, "air flu" broke out in Europe and America, which made people engage in various activities related to aviation and flight.

This further promoted the improvement of paper airplane technology. People have studied flight theory and aerodynamics, and tried to make more complex paper planes, such as wings and tails.

3. Extension of application

The application of paper airplanes is no longer limited to entertainment and leisure. During World War II, paper airplanes became a necessity for allied soldiers. They made reconnaissance planes, bombers, fighter planes and other paper planes for reconnaissance and mission execution. In addition, paper airplanes are also used in education and scientific experiments to help students better understand the principles of gas dynamics and mechanical motion.