What is the method of making small technology handmade and simple?

Tools Raw materials: four small tires, fan blades, batteries, plastic plates, iron wires, plastic pipes.

Egg pumps, layered drinks, bubble blowers, leaf specimens, and skittles are exceptionally easy to get started. 1.First of all, let's talk about how to make an egg pump.

Many people will encounter the situation of using only egg whites instead of egg yolks when cooking, but after opening the eggs, the egg yolks also come out with the egg whites, and the egg yolks cannot be separated with chopsticks and spoons, so there is a good solution at this time. Find a clean mineral water bottle or beverage bottle, squeeze the bottle body, aim the bottle mouth at the egg yolk, and then let go, the egg yolk is easily sucked into the bottle, only the clear egg white remains, and the bottle in our hand becomes the easiest egg sucker. 2.

The principle of the egg pump is very simple, it takes advantage of the air pressure difference, and the egg yolk is squeezed into the bottle under the action of external atmospheric pressure. A lot of people like layered drinks like cocktails, but we can actually make our own. The choice of drinks is yours, such as clear water and blue pre-mixes.

Pour the water into the glass first, then place a straw on the wall of the glass and let the pre-mixed drink flow gently down the straw onto the water. The next thing you will find is that the transparent water and the blue pre-mixed drink are layered, and two colors appear in the glass, and the layered drink is successfully made. The principle is simple, it uses the trick of different liquids with different densities.

3.The same is true for the Skittles, arrange the Skittles along the edge of the plate, then pour water into the plate, and after a few minutes, you will find that the Skittles are dissolved, and the various colors begin to converge from the edge of the plate to the center, and the plate presents a beautiful color. We often see people blowing bubbles on the street, but this one can also be made by yourself, and it is very simple.

Dissolve the soap in an appropriate amount of water to make soapy water, cut one end of the straw into a flower shape, then dip the end of the flower into soapy water, blow from the other end, and you will find a beautiful bubble on the flower. This is because the soapy water is sticky enough to withstand the impact of the air inside, like a balloon. 4.

Leaf specimens are even simpler, we take a fresh leaf we like, wipe it clean and sandwich it in a thick book, and after a while we will find that the leaf has become a specimen, stiff and vivid. This is because the water in the leaves evaporates during the extrusion process, and the leaves become dry and easier to preserve. Our lives are full of science and inspiration, and as long as we explore them with our hearts, we can make different practical and good things.

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".

A simple scientific and technological handiwork, beautiful and simple, the method is as follows:

Tools Raw materials: glass bottles, paper, glue, candles, wire, scissors.

1. We prepare a piece of paper, draw the shape of the butterfly on the paper, and cut it out with scissors.

2. Then roll the paper into a cylinder, and then paste the cut butterfly on the paper tube.

3. Next, use iron wire to make a fishing rod on the glass bottle.

structure, hang the butterfly and put the candle.

4. Finally, put the paper tube made in front of you on the glass bottle, light the candle, and it is done.

1. Homemade badminton. Ingredients: 1 empty drink bottle, 2 fruit foam nets, 1 rubber band, 1 glass marble.

2. Production method: First of all, we take an empty beverage bottle and subtract the top half of it; Cut it to the neck of the bottle with scissors and cut it into 8 parts, each of which should be cut into the shape of a petal of the same size; Then put the fruit foam mesh on the outside of the bottle, and then fix it with a rubber band; Take a foam net, wrap a glass ball, and stuff it into the mouth of the bottle, exposing about 1 cm; Then wrap half a ping-pong ball around the mouth of the bottle, cut the edges of the four imitation sources into whiskers, and then cover the mouth of the bottle and fix it with a rubber band, so as to make a badminton.

3. Microphone. Materials: 2 paper cups, 1 thread, 1 pair of scissors. How it works: Because sound travels faster in solids than in air.

4. Production method: You need to use scissors to drill a small hole at the bottom of the two paper cups (the size of the hole can pass through the line is the best), and then I prepare the two ends of the line and silver to pass through the two small holes and then tie a knot. How to use:

Two people each hold a paper cup, one of them holds the paper cup close to his ear, and then the other person speaks to the paper cup, and the sound transmission function can be realized.

Make a tumbler

Method 1

Material:Table tennis balls, rubber balls, white latex, rags or shredded colored paper, plasticine.

Production process:

1) Make a hole with a diameter of 3 cm at the top of the rubber ball, and insert a tumbler body equivalent to about one-third of the plasticine from the hole to the bottom of the ball.

2) Use white latex to glue the table tennis ball to the small round hole of the rubber ball to make the head of the tumbler.

3) Use cloth corners or colored paper to cut out the facial features and limbs of the tumbler, and stick them on the head and body respectively.

Method two

Material:Rice, bowls, chopsticks, toilet paper, eggs.

Production process:

1) Poke a hole in the top of the egg with chopsticks, stir the egg whites and yolks with chopsticks, let the egg yolks and egg whites flow into the bowl, rinse with water and dry with toilet paper.

2) Pour some rice into the small hole that the egg has just punctured, and then pour some glue to fix the rice to one end of the egg.

3) Make a small round hat out of colored paper.

4) Glue the small hat to the hole in the top of the egg.

5) Draw a face, eyes, nose, and mouth for the tumbler.

Method three

Materials] cardboard, table tennis balls, steel balls or glass balls, colored pencils, utility knives, latex.

Production process]1) Make a cylindrical barrel from a piece of paper.

2) Divide the ping pong ball into two halves and glue one half of the cylinder to one end first.

3) Place the steel ball or glass ball (the steel ball or glass ball can roll freely inside) in the cylinder, and then glue the other half of the table tennis ball to the other end of the cylinder to assemble the red panda's body.

4) Draw a portrait of your favorite animal on the outside of the cylinder.

A small creature that can turn its heels is made, put it vertically on a page, and with a gentle push, it will turn its head and move forward.

The simple and small production tutorial of science and technology is as follows:

1. Prepare mineral water bottles, battery boxes, motors, metal clips, ice cream sticks, small wooden sticks, fan blades, double-sided tape, and white latex. 2. Paste the ice cream stick and the small wooden stick together with white latex.

3. Paste double-sided tape on the back of the battery box and the small motor, paste them on the small wooden stick, and install the fan blades on the small motor.

5. Connect the wire of the battery box with a metal clip to the small motor, and pay attention to whether the positive and negative poles of the connecting wire are consistent with **, otherwise the motor will be reversed.

6. Finally, paste the ice cream stick on the top of the mineral water bottle to make it, and the position of the ice cream stick should be centered, otherwise the boat may roll over because of the unstable center of gravity.

1. Frozen soap bubbles:

1) Turn the refrigerator temperature to a strong setting;

2) Use a straw to blow a spherical soap bubble on a plate;

3) Quickly put the box with soap bubbles in the refrigerator and freeze for 20 minutes. The scientific principle of the Great Doctor's puzzle: soap bubbles are mostly made of water, so they are quickly cooled below 0 degrees Celsius before bursting, and they will freeze, and we will see beautiful frozen bubbles.

2. Soap bubbles that bloom automatically:

Blow a soap bubble and put it on the tin foil flower**, the petals of the tin foil flower will automatically rise, and the silver-white flowers are clustered with colorful soap bubbles, which is very beautiful.

1) Cut a six-petal tin foil flower with a diameter of 8 cm;

2) Place the cork on a plate;

3) Soak the tin foil flowers in soap and place them on the side of the wooden plug to make the petals droop;

4) Cut one end of the straw into four petals and use it to blow a large soap bubble;

5) Put the soap bubble in the center of the flower, and the low-hanging petals will lift up and adsorb on the soap bubble. The scientific principle of the puzzle of the Great Doctor: The film on the surface of the soap bubble has a certain traction, and when the soap bubble is placed in the center of the tin foil flower, this traction pulls the petals up.