Essay on the production plan of science and technology invention 15

Our nation needs to develop and grow, the country urgently needs all kinds of scientific and technological talents, science and technology is the greatest productive force!

You love technology production, which fully reflects the inherent nature of a good student, and I want you to be the backbone of the country.

I would love to help you, support you, and write a scientific and technological essay.

The scientific and technological creation of small inventions and small productions are as follows:Tools required: paper cups, scissors, utility knives, markers.

The first step is to draw the pattern to be cut on the paper cup with a marker, as shown in the figure below

Step 2: Then use a utility knife to remove the bottom of the paper cup, as shown in the figure below

The third step is to crop along the drawn diagram, as shown in the figure below

The fourth step and the last convenient and practical mobile phone holder are completed, as shown in the figure below

How to make a scientific and technological gadget work is as follows:Preparation materials: one No. 5 (AA) battery, one hard copper wire, one permanent magnet.

1. The battery must be selected to be attracted by the magnet.

2. The magnet should be the same diameter as the battery and have a conductive metal plating.

3. Absorb on the negative electrode of the battery and ensure that it will not be short-circuited.

<>5. It should be noted that the two sides below the copper line should not touch the magnet at the same time, and there should be a gap.

6. Adjust the upper and lower heights so that the current can pass through the copper wire on one side at a certain time to generate a loop.

7. Place the copper wire on the battery as shown below.

8. The small motor has begun to spin, so if you are interested, try it yourself.

The method of making small invention is as follows:

1.The self-core high-end flashlight is made as follows: remove one end of a waste can (such as Lulu beverage can) with one end of the lid, and knock the other end with a round-headed hammer. Roll up two No. 1 batteries with thick corrugated cardboard and put them into the tank with the positive electrode facing up and the negative electrode facing down.

Find a suitable plastic lid (such as a large volume of the magic ruler can be fastened to the Lulu can), and dig a small circular hole in the lid**, the size of the hole is suitable for the bulb to be plugged in tightly. Insert the base of the bulb into the small hole.

Take a piece of wire hunt and peel off the wire skin at both ends, wrap one end around the lamp base, and pierce a small hole through the side of the plastic cover with the other end. Place the plastic lid over the can. Check that the bulb and battery are in close contact.

At this point, the disposable flashlight is ready. When using, use your thumb to press the wire threaded from the side wall on the weld that is not painted from the can, the flashlight will glow, and the thumb will jump off the wire, and the flashlight will go out, which is very convenient to use.

2.Homemade solar. Here's how to make it: find a concave reflector bowl on a large flashlight, and use rigid styrofoam or wood to cut a 4 cm long trace cylinder, with a diameter just enough to fit into the reflector bowl.

Drill a fine hole transversely at one end of the cylinder, insert a wire with a diameter equivalent to the diameter of the hole, and then fold the two ends of the exposed wire into 90°, leaving 5 cm each. Insert the cylinder into the hole in the reflector and insert the ends of the wire into a styrofoam or wooden baseplate.

Sharpen the two ends of a thin bamboo skewer, insert one end into the cylinder of the reflective bowl**, and insert a small piece of potato at the other end. Place the device in the sun so that the reflector is facing the sun, and then patiently adjust the length of the skewers so that the potatoes are in the right spotlight. It won't be long before the potatoes are roasted in the sunlight and give off their aroma.

The tutorial on making scientific and technological inventions is as follows:Preparation: three cans, two pairs of eco-friendly chopsticks, red-headed rope, self-painted sailing sails, double-sided tape tape, rubber strips.

Operation steps: 1. Fix the three cans with double-sided adhesive tape, and fix them with chopsticks and rubber strips on both sides.

2. Drill a small hole in the middle of the can, insert a chopstick, and pay attention to the hole should not be too big.

3. Make a colorful sail, remember to open a small hole at the top and bottom for later on the sail pole!

4. Fix the sail pole with a red head rope and put on the colored sail to finish.