How to make a simple invention, the easiest to make a gadget

See below for the production method:

The first tools we need to prepare are batteries, magnets, and copper coils. Attach a small magnet (both n or s) at the same pole to the positive and negative poles of the battery. Then put this made battery into the copper coil.

At this time, you will find that the battery is constantly shuttling in the copper coil.

Small magnets are the key point of this experiment, they not only produce a magnetic field, but also act as a conductor, so that the copper coil and the positive and negative poles of the battery are connected, even if the current is generated in the copper coil, the energized copper coil generates a magnetic field according to the law of electromagnetic induction and the right-hand rule.

Science and technology to make small invention materials are easy to find, easy to process, can cultivate children's hands-on ability, creative ability and thinking ability, can improve children's intelligence and vision, the following to show you a few simple inventions.

1. Homemade colored candles: find a canned beverage barrel, cut off the lid part, cut the wax into the barrel, put the bucket into hot water, stir the wax inside to melt it, first put the thread as a candle core in the container, and then pour the molten liquid into a container with a good shape, let the original wax cool, pour the melted colored crayon liquid into it, so that the wax of different colors is added layer by layer, and the good-looking candle is made.

2. Homemade badminton: cut off the upper part of the empty beverage bottle, divide the cut part into 8 parts, cut it to the bottleneck with scissors, cut each part into the shape of petals of the same size, put the foam fruit net sleeve outside the bottle body, fix it at the bottle mouth with a rubber band, wrap another foam fruit net sleeve around a glass marble, stuff it into the bottle mouth, plug it tightly and expose about 1 cm, cut off half of the table tennis ball, cover the bottom surface of the hemisphere on the bottle mouth, cut it into a whisker on all sides, fix it with a rubber band after covering the bottle mouth, and beautify and modify it. A homemade badminton maker likes something.

3. Homemade coin jar: cut a rectangle of 10 cm long and wide centimeters of cardboard, leave the rest of the long centimeters around the rectangle, open a small mouth of 1 cm long and 1 cm wide in the middle of the rectangle, cut a rectangle of 32 cm long and 6 cm wide on the plastic sheet, divide it into 6 cm, 10 cm, 6 cm, 10 cm, extend the second part from left to right to extend a rectangle of 10 cm long and 8 cm wide, and leave the remaining three parts with a proper paste surface. A homemade coin jar is ready.

Simple gadgets can be made, homemade colored candles, homemade badminton, homemade coin jars, you can use your own hands to make some other gadgets, open up your spare time.

There are ways to make simple gizmos:

Find a concave reflector on a large flashlight.

2.Use rigid styrofoam or wood to cut a cylinder about 4 cm long, with a diameter just enough to fit into the reflector. 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.

3.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.

4.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.

Innovative gadget production method 1, homemade badminton

Prepare materials: 1 empty drink bottle, 2 foam fruit net covers, 1 rubber band, 1 glass marble.

Production process: 1. Take a 250ml empty beverage bottle and cut off the upper part of the bottle;

2.Divide the cut part into 8 equal parts, cut it to the neck of the neck with scissors, and then cut each part into the shape of petals of the same size;

3.Put the foam fruit net sleeve on the outside of the bottle and fix it at the mouth of the bottle with a rubber band;

4.Wrap another foamed fruit net around a glass marble, stuff it into the mouth of the bottle, plug it tightly and expose about 1 cm;

5.Cut off half of the ping pong ball, cover the bottom of the hemisphere on the mouth of the bottle, cut the four sides into a whisker, cover the mouth of the bottle and fix it with a rubber band.

6.After beautification and retouching, a homemade shuttlecock was completed. Hit a dozen with a badminton racket and see how it goes?

2. Homemade soap paper.

Materials and tools for crafting:

Hygroscopic white paper, small pieces of soap, a brush and disposable beverage cans.

Production method: first chop the soap and put it in the jar, put the cup on the stove after filling the appropriate amount of water, wait for the soap to melt, cut the white paper into the size of a matchbox, apply the soap liquid one by one, and then take it out to dry it to become soap paper.

3. Homemade hot air balloons.

1.First of all, we cut 6 to 8 leaf-shaped pieces of paper out of soft paper.

2.Fold them in half and glue their edges together to make a balloon.

3.Tape the four wires to the bottom of the balloon. Attach the other end of the thread to the table with plasticine.

4.Try to turn the speed of the hair dryer as slowly as possible. Aim the blower up at the bottom opening and turn the switch on. The balloon will slowly grow larger, tighten the string, and leave the table.

4. Homemade flashlight.

The specific method of making it is to remove one end of the lid of a waste can (such as a Lulu beverage can) and knock the other end with a round 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 magic big roll lid that can be fastened to Lulu cans) and dig a small circular hole in the lid** in such a size that the bulb is plugged in tightly. Insert the base of the bulb into the small hole. Take a piece of hunt and peel off the skin at both ends, and wrap one end around the lampholder.

The other end is pierced through a small hole through the side of the plastic cover. 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.

In this world, everything is created from nothing, the most typical is objects, and people's creativity for objects is very amazing. As long as it is an item that can be used in daily life, most of the things basically have one characteristic, that is, they have the characteristic of "waste utilization". And these things can be used to become "new things".

1. Bubble machine.

The material is very simple, just prepare the twisted rod and beads. Make a small ring in the middle of the twisting bar, fix it with beads, and string the handles with beads, and a beautiful bubbler is completed. Prepare bubble water and your child will be able to blow bubbles.

2.Vehicle overload alarm.

Materials: integrated circuits, wires, speakers, batteries, electric keys, cardboard, four small rubber wheels, glue paper, etc.

Production method: 1) Assemble the alarm;

2) Make a good car model;

3) Hide the assembled alarm in the car model;

4) Connect the alarm and the electric key with a wire.