Product Name: Wooden Elastic Windmill
Product Code: C103
Size: 310*155*170mm
Weight: 60g
Material: Wood + Metal Hardware + Rubber Band
Packing: 360 pcs
Box Specification: 600*500*450mm

Experimental Focus: In ancient times, people invented a two-wheeled cart pulled by horses (or oxen, donkeys), which can be confirmed by the excavation of the Terracotta Army and many ancient murals. Xuan was a type of ancient carriage with a higher front and a tent, for the use of officials and above. The chariot was a type of ancient war chariot, with four wheels, covered with a cowhide, and could hold ten people. It could also be used to transport soil and fortify the moat, with the main task of attacking the city. The chariot was an ancient type of reclining carriage. It is said that when Qin Shi Huang died outside, he was transported back to the palace by a chariot. The supply car was a type of ancient large car with a canopy, which could carry goods and also be used as a reclining car. In short, the ancient people were very intelligent and ingenious, inventing various types of cars. These "vehicles" symbolize the status and position of the powerful and wealthy. However, most of these cars were drawn by animals. Today, we will make a small car that uses wind power to move.

Experimental Objective: 1. To understand the working principle of a wind turbine.
2. The action of force is mutual.

Experimental Cognition: The interaction between two objects is mutual. When one object exerts force on the other, the other object also exerts a force in response, and these two forces are mutually called action force and reaction force. The size of the action force and the reaction force is always equal, and the direction is always opposite, acting on a straight line. When a person pushes against a wall, the force is the action force, and the wall will also give you a force of the same size, which is the reaction force. Row a boat, swim, and fly a spaceship are based on this principle. When you hit the table with your hand, your hand will hurt, and when you throw a table ball on the floor with force, you will find that the bigger the force, the higher the table ball will jump.

Knowledge Expansion: 1. Interaction forces are equal in size, opposite in direction, and act on two different objects, all along the same straight line. The nature of the two forces is the same. 2. Balancing forces are two forces acting on the same object, of the same size, opposite in direction, and along the same straight line. The nature of the two forces can be different. 3. Two mutually balancing forces can exist separately, arising and disappearing simultaneously when interaction forces are present. 4. Interaction forces only involve two objects (the object applying the force is also the object receiving the force), whereas balancing forces involve three objects (two applying forces and one receiving force). 5. Interaction forces act on two different objects, whereas balancing forces act on one object together. 6. Interaction forces have no net force, whereas the net force of balancing forces is 0. 7. Interaction forces have their own effects, whereas balancing forces have a common effect. Based on the nature of the forces, they can be classified into elastic forces, friction forces, gravitational forces, etc. The forces of interaction and counteraction between objects always belong to the same type of force. For a pair of action forces and counteraction forces, it is not correct to say that one force is the cause and the other is the result. Either of the two forces can be considered as the counteraction force, and the other one, relative to it, becomes the counteraction.

Do you know? For thousands of years, people have been studying an ideal vehicle for road transportation. Our ancestors tamed cattle and horses and created various human and animal-powered vehicles, but we have never been satisfied. In the 19th century, with the development of the Industrial Revolution, steam cars became popular. Many people used steam engines on cars, but the true car (using a gasoline engine as power) was born in Germany in 1886. In 1885, German engineer Karl Benz manufactured a three-wheeled car with a 0.85 horsepower gasoline engine in Mannheim. On January 29, 1886, he applied for a patent, and this day is recognized as the birth of the world's first car.

Experiment Report: In our actual activities, do you know any more phenomena of action and reaction?

Zhejiang Jianyi Education Technology Co., Ltd.
Zhejiang Jianyi Education Technology Co., Ltd. (formerly Yifei Toy Factory)Established in 2007, the current brand is "XING TEACHER" and "JIAN YI". Over the past 10 years, our company has made unremitting efforts to make the enterprise gradually mature. Our company is a member of the Teaching Equipment Industry Association of the Ministry of Education, and is a leading enterprise in Zhejiang Province. The company has been awarded the "Heavy Contract and Credit-Keeping" unit for three consecutive years by Jinhua City. In 2014, it was awarded the "Advanced Collective of Jinhua Teaching Instrument Industry" by Zhejiang Province.
Zhejiang Jianyi Education Technology Co., Ltd. is a high-tech enterprise that integrates modern scientific research and development of educational equipment, curriculum design, teaching resource integration, and technical services. Zhejiang Jianyi Education Technology Co., Ltd., with high-tech products and modern educational equipment, has established itself in the education industry. Our products are sold all over the country and have been exported to Europe, America, Japan, and South Korea. After years of accumulation, the company has begun to take shape. In terms of technological innovation, the company has professional design personnel engaged in the research and development of complete sets of educational products and the upgrade of existing products; in production, management, and installation services, the company strictly implements the ISO9001 international quality assurance system standards; in marketing, the "Xing Teacher" products have been introduced into many provinces and cities in the country and enjoy a good reputation; for many years, it has provided high-quality, advanced, professional series of modern teaching equipment and professional equipment research and development custom services for the education industry. With excellent, high-quality professionals and perfect after-sales service quality, the company has established a good corporate image.Xing teacher's" series of science and education physics, chemistry, photovoltaic, wind energy, geography, biology, art, and so on, has successfully won bids in the education bureau tenders multiple times. Zhejiang Jianyi Education Technology Co., Ltd. continues to adhere to the business philosophy of "quality first, service to diligence, honesty in character," and upholds the "Xing teacher" culture, casts the "Xing teacher" brand, and creates the development policy of the "Xing teacher" career. We provide excellent equipment and high-quality services for school teaching and scientific research. We are willing to cooperate sincerely with new and old friends at home and abroad, work together, and devote our efforts to education and education.

  Before assembling, please check if the circuit is unblocked and all the components are complete. Ensure that all contact points are in good contact. During the assembly process, be careful not to get glue on your clothes or skin. Keep the parts out of reach of younger siblings to prevent them from swallowing them by mistake! Do not play with them on your head, to avoid the model falling and injuring you!