Are there any small productions about technology?

Small scientific and technological productions to cultivate creative ability and hands-on ability of invention and creation.

The characteristics of small science and technology production are rich in science and technology, simple structure, easy to find materials, easy to process, less cost, and can be completed independently, especially suitable for students, which can cultivate students' creative ability, thinking ability and hands-on ability. Teachers can appropriately inspire students to create high-quality small productions.

Small scientific and technological productions can be divided into two types: imitation type and creative type. The imitation type is mainly formed by imitating others, and most children's science and technology small productions start from imitation. Start by imitating, and gradually become interested, you can create your own creation.

Features:

1) Simple structure. Generally, only a few parts are made and then assembled.

2) The material is easy to find. Many materials can be found at home, such as empty cartons, toothpaste skins, styrofoam, canning cylinders, waste ballpoint pen refills, broken toys, iron wire, iron sheets, etc.

3) Easy processing. Most of the projects have low technical requirements and can be mastered by primary school students.

4) Spend less. Some programs can even cost nothing and do not add to the burden on the family.

5) Many projects can be completed in just one day or half a day, which is in line with the psychology of children and is easy to popularize.

The above content reference: Encyclopedia - Science and Technology Small Production.

Small scientific and technological productions must have a certain scientific content. So I suggest you do a simple electroscope:

1.We know that usually we will find some old batteries in our drawers, but we don't know if there is any power left, and it is troublesome to check it if we put it in and there is no way to know how much power is left. So, you can make a small electroscope.

The method is as simple as this: use a small light bulb, a very small one (like the one on a pendant or toy lamp, which is sold in hardware stores). Then connect two thin enameled wires to the lamp separately.

The other end of the two wires is used to connect the positive and negative poles of the battery you want to inspect. According to the brightness of the small bulb, you can judge the battery level.

2.Take a broken umbrella, remove the cloth, take a wire, connect one end to the TV or radio, and the other end to the umbrella, it is a good signal receiver. If you want to be professional, just wrap a few more wires around the umbrella.

It's the most cost-effective, quickest way, and just a little hilarious.

3Put a match and a large needle together with a quilt, wrap them tightly with the aluminum foil of the cigarette pack, and then bend the aluminum foil at the end of the match head to seal and twist tightly. Then attach a directional tail near the tail and pull the needle out, and it becomes a very simple recoil rocket.

During the experiment, a small rocket was placed on a wire stand, a match was lit, and the part of the aluminum foil tube wrapped in the match head was heated. When the temperature rises to the ignition point of the match head, the matchbox in the foil is ignited, causing the surrounding air to expand dramatically, and the gas is ejected from the tail mouth at high speed. As a result of the recoil, the bazooka flew forward from the rack.

If you wrap two head-to-head matches in aluminum foil, leave them unclosed at both ends. Place it on top and heat it from the middle. When the match in the barrel is lit, the gas is ejected from both ends, and the foil cylinder remains on the rack, thus indicating the conservation of momentum in the system.

4. Riveting two identical protractors at the center of the circle and can rotate flexibly, the upper protractor is a gap of l centimeters long along the right end, when measuring the angle, let its opening coincide with the two sides of the angle to be measured, and the scale indicated by the notch is the degree of this angle; When drawing the corners, first align the notch with the specified scale, and then draw two rays along the opening. This protractor can also measure the angle of three-dimensional objects such as nuts.

Because this kind of protractor resembles a scissor when used, we call it a "scissor protractor".

How to make a small technology production

1. Make tools. Since it is a small production of science and technology, then the work is necessary, and some frequently used tool keys can be prepared, such as: pliers, wire, glue and other common tools. Of course, the more abundant the tools, the better, and the easier it is to make.

2. Preparation of materials. Prepare the materials according to the technology you want to make. What materials are needed are planned in advance, or written down on paper for easy collection and purchase. Once the materials are ready, you can make it.

3. Hands-on ability. Making small scientific and technological productions requires a certain amount of hands-on ability, and it is usually necessary to practice and do more. You can participate in the production of existing production materials and follow the instructions, improve your hands-on ability, and lay the foundation for your own creation in the future.

4. Design drawings. If the small production of science and technology is slightly complicated, then it needs to be designed drawings, although it is not very professional, but the corresponding data should be calculated, and the corresponding steps and structures should be designed clearly. I also have a good idea of how to make it this way.

5. Knowledge of physics. The production of science and technology is inseparable from a certain amount of physical knowledge, usually to learn more, to study more physics knowledge, to accumulate more knowledge of mechanical physics and other aspects. This helps us to design and produce in our spare time.

6. Be creative. At the beginning of production, you can imitate others, imitate successful small production cases of science and technology, accumulate production experience through imitation, and improve your hands-on ability. Then, add your own creativity, enhance your imagination, and start to make more creative and novel scientific and technological small manuscripts.