The methods of making a windmill include: simple windmill, colorful windmill, and rotating windmill. The details are as follows:
1. Simple windmill: Prepare materials, a piece of A4 paper, a pair of scissors, a pencil, and glue. Fold the A4 paper in half, draw half a pinwheel shape on it with a pencil, and then cut it out with scissors. Use glue to glue the cut paper into the shape of a windmill, and a simple windmill is completed. Adding a lightweight blade to a large windmill can make it more beautiful.
2. Colorful windmill: Prepare materials, colored paper, scissors, glue, pencil, and eraser. Draw four shapes of the same size on colored paper to represent the four blades of the windmill. Cut out the shape with scissors and fold it into the shape of a windmill blade. Glue the blades together to create a large windmill shape. Adding colorful decorations to the windmill can make it more beautiful.
3. Rotating windmill: Prepare materials, a piece of cardboard, a pencil, a pair of scissors, and a glue. Draw a large pinwheel shape on the cardboard and cut it out with scissors. Glue the blades together to create a large windmill shape. Adding a lightweight blade and a base to a large windmill can make it rotate more stably.
The significance of making a big windmill
1. Cultivate creativity and hands-on ability: Making a big windmill requires primary school students to use their brains, use their imagination and Creativity, through hands-on experience. In this process, they need to constantly try, adjust and optimize, thereby cultivating creativity and hands-on ability.
2. Understand scientific principles: A windmill is a device that uses wind energy to rotate. Its production involves scientific principles such as aerodynamics and mechanical mechanics. By making a big windmill, primary school students can better understand these scientific principles and improve their scientific literacy.
3. Promote the learning of natural sciences: In the process of making a windmill, primary school students need to select materials, design shapes, and build structures, which require them to use natural science knowledge to solve Practical questions. Therefore, making a big windmill can promote their learning of natural science.
How to manually rotate the windmill:
1. Fix the battery box on the base, and use wire strippers to peel off the wires of the battery box< /p>
2. Install resistors, light-emitting diodes and other electronic components on the base
3. Insert the capacitor into the inductor, and install the reed switch, reed switch sheath and connector on the base on the inductor coil.
4. Use sandpaper to remove the enameled wire coating of the inductor coil.
5. Fix the inductor coil on the base and connect the lines.
6. Fix the column on the base, and assemble the three-impeller and rotating arms to form the blades of the large windmill.
7. Install the battery and connect it to the inductorTest the magnet polarity on the coil.
8. Install the three magnets on the large windmill fan blades in step 6.
9. Assemble the fan blades, rotating shaft and rotating sleeve in step 8 and install them on the column, and you are done.
The turning principle of the car is a mechanical device that is driven by wind and operates with energy generated by adjustable blades or stepped crossbar wheels. Ancient windmills began to develop from sails and had 6 to 8 similar pairs. The sailing awning is distributed around a vertical axis and rotates around the axis when the wind blows. Due to its low efficiency, this type of windmill has been replaced by wooden cloth awning windmills with a horizontal rotating axis and other windmills, such as vertical windmills and automatic rotor windmills.
A windmill is a power machine that does not require fuel and uses wind as energy. Early wind turbines were called windmills. Modern wind turbines refer to wind turbines for power generation and are used to lift water for irrigation.