Windmill making steps instructions

Introduction Instructions for making a windmill. The steps for making a windmill are as follows: 1. Cut into a square: Fold the short side of the A4 yellow paper diagonally into a triangle, cut off the excess part, and obtain a square paper. 2. Cut out the windmill

Windmill making steps instructions

The steps to make a windmill are as follows:

1. Cut into a square: Fold the short side of the A4 yellow paper diagonally into a triangle, cut off the excess, and get a square paper .

2. Cut out the windmill leaves: Fold and flatten the diagonal lines, cut along the diagonal creases to 2/3, and cut out the windmill leaves.

3. Make a windwheel: The windmill leaves are spaced in order, and glued to the center of the square paper to make a windwheel.

4. The insertion of iron wire: Paste the white round paper in the center of the windmill, insert the iron wire through the white round paper in the center, and pass through the yellow paper tube.

5. Fixation of iron wire: After the iron wire passes through the small hole of the paper stick made of white paper, it is firmly fixed on the white paper stick.

Windmills are power machines that do not require fuel and use wind as energy. Early wind turbines were also called windmills. Modern wind turbines mostly refer to wind turbines used for power generation, and are also used to lift water for irrigation.

The ancient windmill developed from sails. It had 6 to 8 sail-like canopies, distributed around a vertical axis. When the wind blew, it rotated around the axis like a revolving lantern. , called a revolving windmill. Due to its low efficiency, this kind of windmill has been gradually replaced by wooden cloth windmills with horizontal rotating shafts and other windmills, such as "vertical windmills", "automatic rotor windmills", etc.

Ancient Chinese windmills

Ancient Chinese windmills have obvious characteristics. In addition to horizontal axles, the sails are sail-type. The sail is not mounted radially from the wheel shaft, but is mounted on eight poles around the shaft frame. The sail is again bias-rigged, that is, the canvas is narrower on one side of the pole and wider on the other side, and is tensioned with ropes.

When the wind acts on A, the sail is downwind, the sail is perpendicular to the wind direction (the force is greatest) and is tightened by the rope; when it is turned to position C, the sail is blown outward, and the sail surface is parallel to the wind direction. ; Return to position E and then resume the windward position. Using the tightness of the ropes and the bias of the sail, it can take advantage of wind or headwinds, just like in a ship's sail.

  • Popular Focus
  • Where is the cheapest battery wholesale?

    Where is the cheapest battery wholesale in Tangxia, Sanyuanli, Baiyun District? There is an enterprise specializing in the independent production of electric vehicles in Tangxia, Sanyuanli, Baiyun District, Baiyun Sanyuanli Avenue, Baiyun Sanyuanli Street
    08-02
  • Understanding 18650 Voltage: A Comprehensive Guide to Lithium-Ion Battery Power

    Lithium-ion batteries have become the backbone of modern portable electronics, providing the energy needed for everything from smartphones to electric vehicles. Among the various types of lithium-ion batteries, the 18650 battery stands out as a popular ch
    08-27
  • What are the materials of the negative electrodes of lithium batteries?

    What are the materials of the negative electrodes of lithium batteries? The main commercial applications of lithium batteries include graphite, which is a sheet of copper used to guide current and which does not react. another safe
    08-02
  • The difference between 18500 and 26500 batteries

    What is the difference between 18500 and 26500 batteries? The answer above is 18650. The person asking the question should ask what is the difference between 18505 and 26500 batteries. In the case of Fuant ER1
    08-02
  • What does 3.7V 80mAh written on a lithium battery mean?

    What does 3.7V 80mAh written on a lithium battery mean? 3.7 V, 80 mA = 0.08 A, H means 1 hour, or 3600 seconds. Taken together, it is
    08-02
  • How long does a lithium battery (cell phone battery) last?

    How long does a lithium battery (cell phone battery) last? The lifespan of mobile phone batteries, under normal conditions of use and without serious impact, the lifespan set by the manufacturer must be 5 years.
    08-02
  • Will lithium batteries explode when charging?

    Will lithium batteries explode when charged? Will lithium batteries explode when charged? Lithium battery explosions usually occur during the charging process, because the negative electrode material of lithium batteries is graphite or other carbon materi
    08-02
  • Parameters of lgdas31865 lithium battery

    Parameters of lgdas31865 lithium battery The parameters of lgdas31865 lithium battery are as follows: LGDAS31865 is a model 18650 lithium battery with a capacity of
    08-02
  • What are the main components of lithium battery electrolyte?

    What are the main components of lithium battery electrolyte? The composition of lithium battery electrolyte is shown below. 1. Ethylene carbonate: molecular formula C3H4O3. Colorless transparent liquid (>35℃), room temperature
    08-02
  • Who are the lithium battery manufacturers in Shandong?

    What are the lithium battery manufacturers in Shandong? Shandong Shengyang Power Supply Co., Ltd. and Shandong Weineng Environmental Protection Power Technology Co., Ltd. 1. Shandong Shengyang Power Supply Co., Ltd. is located in Shengyang, Qufu City.
    08-02
  • Types of drone batteries available in 2024

    Part 1. Types of drone batteries available in 2024In 2024, drone batteries have advanced significantly, offering a range of options to cater to various needs in
    07-30
  • How long does it take to charge 26650 battery?

    How long does it take to charge a 26650 battery? The charging time for a 26650 battery is generally between 3 and 6 hours, but the precise time depends on the power of the charger and the capacity of the battery. in general
    08-02
  • For what?Sure, here's an article based on the phrase "For what?

    The simple yet profound question, "For what?" often serves as a gateway to deeper reflections on purpose and intention. It is a query that invites us to delve into the reasons behind actions, decisions, and circumstances that shape our lives and the wor
    08-02
  • Choosing the Right Cart Battery

    This comprehensive guide will walk you through everything you need about cart batteries, from understanding different types to making an informed purchase decision.
    08-02
  • 30mAh~500mAh 3.7 V Li-ion Battery

    Welcome to Ufine's collection of 3.7V lithium-ion batteries ranging from 30mAh to 500mAh. Explore a diverse range of compact and lightweight batteries suitable for various electronic devices,
    08-02
  • Here are 10 essential facts about drone batteries for 2024.

    10 Key Facts About Drone Battery for 2024 In 2024, drone batteries have advanced significantly, offering a range of options to cater to various needs in the consumer, commercial, and industrial sectors. Below are the primary types of drone batteries avai
    08-02
  • Could you please explain the difference among IMR, ICR, INR, and IFR 18650 batteries?

    What is the Difference Between IMR, ICR, INR, and IFR 18650 Battery?In 18650 batteries, discerning the differences among IMR, ICR, INR, and IFR types is fundamental for tailored and efficient battery usage. These distinct
    08-02
  • Safety considerations for cart batteries

    Selecting the ideal cart battery is crucial for ensuring optimal performance and longevity of your electric vehicle or vaping device. This comprehensive guide w
    08-01