Technology small production deep sea mining
Publish: 2021-04-27 21:26:28
1. 1, homemade badminton
preparation materials: one empty drink bottle, two bubble fruit net, one rubber band, one glass marble.
proction process:
1. Take a 250 ml empty beverage bottle and cut off the upper part of the bottle
2. Divide the cut parts into 8 parts, cut them to the bottleneck with scissors, and then cut each part into petal shape with the same size
3. the foam fruit net is sleeved outside the bottle body, and the rubber band is fixed on the bottle mouth;
4. wrapped another bubble fruit net in a glass marble, stuffed it into the bottle mouth, pressed and exposed about 1 centimeters;
5. Cut off half of the table tennis ball, cover the bottom of the hemisphere on the bottle mouth, cut the four sides into whiskers, cover the bottle mouth and fix it with a rubber band
6. After beautification, a homemade badminton is finished. Play with a badminton racket to see how it works
2. Self made soap paper
materials and tools:
white paper with good hygroscopicity, small pieces of soap, a writing brush and disposable beverage can
proction method:
first, cut the soap into pieces and put it in a pot, fill it with proper amount of water, then heat the cup on the stove, wait for the soap to melt, cut the white paper into matchbox size, coat it with soap one by one, and then take it out and dry it in the shade< First, we use soft paper to cut 6-8 leaves of paper
2. Fold them in half and glue their sides together to make a balloon
3. Tape the four wires to the bottom of the balloon. Fix the other end of the line on the table with rubber
4. Try to slow down the speed of the hair dryer. Align the blow port up to the bottom opening and turn on the switch. The balloon will slowly grow larger, tighten the string and leave the table.
preparation materials: one empty drink bottle, two bubble fruit net, one rubber band, one glass marble.
proction process:
1. Take a 250 ml empty beverage bottle and cut off the upper part of the bottle
2. Divide the cut parts into 8 parts, cut them to the bottleneck with scissors, and then cut each part into petal shape with the same size
3. the foam fruit net is sleeved outside the bottle body, and the rubber band is fixed on the bottle mouth;
4. wrapped another bubble fruit net in a glass marble, stuffed it into the bottle mouth, pressed and exposed about 1 centimeters;
5. Cut off half of the table tennis ball, cover the bottom of the hemisphere on the bottle mouth, cut the four sides into whiskers, cover the bottle mouth and fix it with a rubber band
6. After beautification, a homemade badminton is finished. Play with a badminton racket to see how it works
2. Self made soap paper
materials and tools:
white paper with good hygroscopicity, small pieces of soap, a writing brush and disposable beverage can
proction method:
first, cut the soap into pieces and put it in a pot, fill it with proper amount of water, then heat the cup on the stove, wait for the soap to melt, cut the white paper into matchbox size, coat it with soap one by one, and then take it out and dry it in the shade< First, we use soft paper to cut 6-8 leaves of paper
2. Fold them in half and glue their sides together to make a balloon
3. Tape the four wires to the bottom of the balloon. Fix the other end of the line on the table with rubber
4. Try to slow down the speed of the hair dryer. Align the blow port up to the bottom opening and turn on the switch. The balloon will slowly grow larger, tighten the string and leave the table.
2.
Self made model motor. Enameled wire, magnet, battery, wire, thumbtack, loopback needle, board, tape, knife
The enameled wire is wound into a circular circle, about 15 circles,2
Then, a supporting bracket was made with a round steel needle Use adhesive tape to fix the magnet on the board.
5. Use thumbtack to fix the wire on the bracket, then connect 3V power supply, and turn the coil gently. And then it turns
I wish you success
3. Electronic balance model, note that this is a model, can only weigh very light objects, such as two small scraps of paper. The materials needed for the proction are: a wooden board (preferably thinner, not too large), a washer, a paper clip, an awl, an electric soldering iron, several wires, two light-emitting diodes, and a battery. These materials are easy to find. If you don't have led, you can buy them in the electronic market. They are very cheap
the manufacturing process is as follows: use an awl to turn a small hole in the middle of the board, bend a paper clip into a hook shape, fix it on the board through the small hole perpendicular to the board, and hook it to hang the washer. Then take two paper clips and straighten half of them, leaving only one bend. In fact, the straightened part is the arm of the balance, and the rest is the tray. Another paper clip does the same thing. Then the two paper clips and the washer are welded together, the washer is in the middle, and the paper clip should be in a straight line. Then hang the washer on the hook, adjust the distance between the hook and the board, about 3mm. Next, two paper clips are fixed under two pallets, and the light-emitting diode is ready to be used as the indicator next to the paper clip. Set up a circuit under the board, the balance is equivalent to a single pole double throw switch. This circuit is equivalent to two circuits, sharing a power supply and two light-emitting diodes. As long as the left side sinks, the tray on the left side will be connected with the pin under it, so that the circuit is connected and the LED lights up; If the weight of both sides is equal, the circuit is blocked, and both diodes are not on.
the manufacturing process is as follows: use an awl to turn a small hole in the middle of the board, bend a paper clip into a hook shape, fix it on the board through the small hole perpendicular to the board, and hook it to hang the washer. Then take two paper clips and straighten half of them, leaving only one bend. In fact, the straightened part is the arm of the balance, and the rest is the tray. Another paper clip does the same thing. Then the two paper clips and the washer are welded together, the washer is in the middle, and the paper clip should be in a straight line. Then hang the washer on the hook, adjust the distance between the hook and the board, about 3mm. Next, two paper clips are fixed under two pallets, and the light-emitting diode is ready to be used as the indicator next to the paper clip. Set up a circuit under the board, the balance is equivalent to a single pole double throw switch. This circuit is equivalent to two circuits, sharing a power supply and two light-emitting diodes. As long as the left side sinks, the tray on the left side will be connected with the pin under it, so that the circuit is connected and the LED lights up; If the weight of both sides is equal, the circuit is blocked, and both diodes are not on.
4. 1. First, we use soft paper to cut 6-8 leaves of paper
2. Fold them in half and glue their sides together to make a balloon
3. Tape the four wires to the bottom of the balloon. Fix the other end of the line on the table with rubber
4. Try to slow down the speed of the hair dryer. Align the blow port up to the bottom opening and turn on the switch. The balloon will slowly grow larger, tighten the string and leave the table< Materials and tools: two sprite drink bottles, glue, carving knife and scissors
making method:
1. Take off the green bottom cover of a sprite drink bottle, cut it into lotus shape, turn it down and stick it with the bottle body to form a base
2. Cut a green ring 2 cm wide on the green bottom cover and put it on the bottle
3. Remove the bottle neck and cut out a wide strip of 13cm long and 8cm wide and several narrow strips of 3cm wide
4. Use a knife to carve patterns on 3cm narrow strips? As shown in Figure 3, then fold these narrow strips outward and insert them into the green ring from bottom to top
5. Take another drink bottle, use the bottle body, and use scissors to cut out 6 capsules 17 cm long
6. Nail the flower basket on the wall, insert the leaves and flowers, and the wall hanging flower basket is made<
3. Self made soap paper
materials and tools:
white paper with good moisture absorption, small pieces of soap, a writing brush and disposable beverage can
proction method:
first, cut the soap into pieces and put it in a pot, fill it with proper amount of water, then heat the cup on the stove, wait for the soap to melt, cut the white paper into matchbox size, coat it with soap one by one, and then take it out and dry it in the shade<
4. Self made flashlight
the specific proction method is: take off one end of the cover of a waste pop can (such as Lulu beverage can), and punch the other end with a round hammer. Roll up two No. 1 batteries with thick corrugated board, and put them into the can with positive pole up and negative pole down. Find a suitable plastic cover (for example, the cover of the magic big roll can be buckled on the Lulu beverage can), and dig a small round hole in the middle of the cover. The size of the hole is suitable for the light bulb to be inserted tightly. Insert the bulb base into the small hole. Take a piece of tracing wire, strip the wire skin at both ends, wind one end around the lamp holder, and tie a small hole on the side of the plastic cover at the other end. Put the plastic cover on the can. Check if the bulb and battery are in close contact. Here, the disposable flashlight is ready. When in use, press the wire from the side wall with your thumb on the unpainted welding seam of the can, and the flashlight will light up. When your thumb jumps away from the wire, the flashlight will go out, which is very convenient to use
5. Clean eraser with brush
if you write wrong words, use the eraser. After wiping, there will always be a lot of debris left on the paper. It's not sanitary and troublesome whether it's by hand or by mouth. Make a clean eraser and it won't be so troublesome
materials: big rubber, waste writing brush
tools: scissors, glue
proction method:
1. Dig a shallow small round hole at one end of the rubber
2. Remove the tip of the waste brush, wash and dry it
3. Cut off the tip of the brush head to make it a small brush
6. Make a pen holder
do you have any unused glasses at home? Or a teacup that has been dropped or something, try it, as long as it's heavy enough to hold the pen. Find a beautiful cloth or colored paper to make a dress for the cup. Kraft paper is also very good. Measure it on the cup, cut out a suitable piece, and leave about one centimeter more at the joint. Find some glue, paste, all-purpose glue and stick the coat on the cup. Chewing gum is OK. The gum should be pulled smaller. The important thing is to stick the boundary and joint tightly. That's about it. Trim the irregular part, stick a decoration on it and write a few words with colored pen
no decorations? Look for a pictorial, cut some beautiful ones, small ribbons on clothes, or draw them directly
OK, enough for you
4. Insert the brush head into the small round hole of the rubber and stick it firmly with glue
OK, it's made of clean eraser. Every time after wiping the rubber, you can use a brush to gently "sweep" the debris on the paper, and then pour it into the wastebasket
6. Making tumbler
method 1
[material]: table tennis ball, rubber ball, white latex, rag or color paper, rubber clay
[proction process]
(1) open a hole with a diameter of 3cm at the top of the rubber ball, and put about one third of the ball into the bottom of the ball to make tumbler
(2) stick the table tennis ball to the small round hole of the rubber ball with white latex to make the head of the tumbler
(3) cut out the features and limbs of the tumbler with cloth horn or colored paper, and stick them on the head and body respectively< Method 2: rice, bowl, chopsticks, toilet paper and eggs. 1. Poke a hole in the top of the egg with chopsticks, mix the egg white and yolk with chopsticks, let the egg yolk and yolk flow into the bowl, rinse with water and dry with toilet paper
(2) pour some rice into the small hole just pierced in the egg, and then pour some glue to fix the rice on one end of the egg
(3) make a small round hat with colored paper
(4) stick the cap to the hole on the top of the egg
(5) draw a face, eyes, nose and mouth on the tumbler< Method 3: hard paper, table tennis ball, steel ball or glass ball, color pen, art knife and latex
(2) divide the table tennis ball into two parts, and first stick half of them to one end of the cylinder
(3) put the steel ball or glass ball (the steel ball or glass ball can roll freely inside) into the cylinder, and then stick the other half of the ping-pong ball to the other end of the cylinder to assemble the body of the panda
(4) draw your favorite animal's head on the outside of the cylinder
a small animal that can turn somersaults is made. Put it vertically on a page and push it gently, it will turn somersaults forward
2. Fold them in half and glue their sides together to make a balloon
3. Tape the four wires to the bottom of the balloon. Fix the other end of the line on the table with rubber
4. Try to slow down the speed of the hair dryer. Align the blow port up to the bottom opening and turn on the switch. The balloon will slowly grow larger, tighten the string and leave the table< Materials and tools: two sprite drink bottles, glue, carving knife and scissors
making method:
1. Take off the green bottom cover of a sprite drink bottle, cut it into lotus shape, turn it down and stick it with the bottle body to form a base
2. Cut a green ring 2 cm wide on the green bottom cover and put it on the bottle
3. Remove the bottle neck and cut out a wide strip of 13cm long and 8cm wide and several narrow strips of 3cm wide
4. Use a knife to carve patterns on 3cm narrow strips? As shown in Figure 3, then fold these narrow strips outward and insert them into the green ring from bottom to top
5. Take another drink bottle, use the bottle body, and use scissors to cut out 6 capsules 17 cm long
6. Nail the flower basket on the wall, insert the leaves and flowers, and the wall hanging flower basket is made<
3. Self made soap paper
materials and tools:
white paper with good moisture absorption, small pieces of soap, a writing brush and disposable beverage can
proction method:
first, cut the soap into pieces and put it in a pot, fill it with proper amount of water, then heat the cup on the stove, wait for the soap to melt, cut the white paper into matchbox size, coat it with soap one by one, and then take it out and dry it in the shade<
4. Self made flashlight
the specific proction method is: take off one end of the cover of a waste pop can (such as Lulu beverage can), and punch the other end with a round hammer. Roll up two No. 1 batteries with thick corrugated board, and put them into the can with positive pole up and negative pole down. Find a suitable plastic cover (for example, the cover of the magic big roll can be buckled on the Lulu beverage can), and dig a small round hole in the middle of the cover. The size of the hole is suitable for the light bulb to be inserted tightly. Insert the bulb base into the small hole. Take a piece of tracing wire, strip the wire skin at both ends, wind one end around the lamp holder, and tie a small hole on the side of the plastic cover at the other end. Put the plastic cover on the can. Check if the bulb and battery are in close contact. Here, the disposable flashlight is ready. When in use, press the wire from the side wall with your thumb on the unpainted welding seam of the can, and the flashlight will light up. When your thumb jumps away from the wire, the flashlight will go out, which is very convenient to use
5. Clean eraser with brush
if you write wrong words, use the eraser. After wiping, there will always be a lot of debris left on the paper. It's not sanitary and troublesome whether it's by hand or by mouth. Make a clean eraser and it won't be so troublesome
materials: big rubber, waste writing brush
tools: scissors, glue
proction method:
1. Dig a shallow small round hole at one end of the rubber
2. Remove the tip of the waste brush, wash and dry it
3. Cut off the tip of the brush head to make it a small brush
6. Make a pen holder
do you have any unused glasses at home? Or a teacup that has been dropped or something, try it, as long as it's heavy enough to hold the pen. Find a beautiful cloth or colored paper to make a dress for the cup. Kraft paper is also very good. Measure it on the cup, cut out a suitable piece, and leave about one centimeter more at the joint. Find some glue, paste, all-purpose glue and stick the coat on the cup. Chewing gum is OK. The gum should be pulled smaller. The important thing is to stick the boundary and joint tightly. That's about it. Trim the irregular part, stick a decoration on it and write a few words with colored pen
no decorations? Look for a pictorial, cut some beautiful ones, small ribbons on clothes, or draw them directly
OK, enough for you
4. Insert the brush head into the small round hole of the rubber and stick it firmly with glue
OK, it's made of clean eraser. Every time after wiping the rubber, you can use a brush to gently "sweep" the debris on the paper, and then pour it into the wastebasket
6. Making tumbler
method 1
[material]: table tennis ball, rubber ball, white latex, rag or color paper, rubber clay
[proction process]
(1) open a hole with a diameter of 3cm at the top of the rubber ball, and put about one third of the ball into the bottom of the ball to make tumbler
(2) stick the table tennis ball to the small round hole of the rubber ball with white latex to make the head of the tumbler
(3) cut out the features and limbs of the tumbler with cloth horn or colored paper, and stick them on the head and body respectively< Method 2: rice, bowl, chopsticks, toilet paper and eggs. 1. Poke a hole in the top of the egg with chopsticks, mix the egg white and yolk with chopsticks, let the egg yolk and yolk flow into the bowl, rinse with water and dry with toilet paper
(2) pour some rice into the small hole just pierced in the egg, and then pour some glue to fix the rice on one end of the egg
(3) make a small round hat with colored paper
(4) stick the cap to the hole on the top of the egg
(5) draw a face, eyes, nose and mouth on the tumbler< Method 3: hard paper, table tennis ball, steel ball or glass ball, color pen, art knife and latex
(2) divide the table tennis ball into two parts, and first stick half of them to one end of the cylinder
(3) put the steel ball or glass ball (the steel ball or glass ball can roll freely inside) into the cylinder, and then stick the other half of the ping-pong ball to the other end of the cylinder to assemble the body of the panda
(4) draw your favorite animal's head on the outside of the cylinder
a small animal that can turn somersaults is made. Put it vertically on a page and push it gently, it will turn somersaults forward
5. I original technology small proction steps, and personally made a success<
Liu Qian's
little magic used in a
very easy to do
physical proction:
I've done, succeeded, and the effect is very good. I call it a grip meter
materials: a mineral water bottle
a pen (the simplest pen, sealed, only the tip is a hole, not the refill)
methods: 1. First, make sure that the tip of the pen will float on the water after it is sealed
2. Winding iron wire around the tip of the pen is the most critical step. For example, after entering the water, more than four fifths of the pen body is in the water, and a small part is outside the water
3. Fill the mineral water bottle with half a bottle of water, put the treated pen in (the pen tip is not sealed, other places are sealed), and close the bottle cap
4, the bottle is upright (at this time, more than four fifths of the pen body is in the water, and a small part is outside the water!) Squeeze the bottle in the bottle, and you will see the pen sink down into the water
that's it! I hope you can do it successfully When Liu Qian did it, he secretly pressed the bottle with one hand, and deliberately swayed with the other hand, saying that he could get things to the bottom of the bottle with "divine power"! Joke! But he didn't use a pen. I did it for you. I understand that
has made improvements.) The above one is very interesting and easy to do.. But you have to understand the principles to succeed.. Do it carefully
this is a small online technology proction, there are many< br /> http://ikeji.cn/xiaozuo/kejixiaozuo/list_ 3.html
Liu Qian's
little magic used in a
very easy to do
physical proction:
I've done, succeeded, and the effect is very good. I call it a grip meter
materials: a mineral water bottle
a pen (the simplest pen, sealed, only the tip is a hole, not the refill)
methods: 1. First, make sure that the tip of the pen will float on the water after it is sealed
2. Winding iron wire around the tip of the pen is the most critical step. For example, after entering the water, more than four fifths of the pen body is in the water, and a small part is outside the water
3. Fill the mineral water bottle with half a bottle of water, put the treated pen in (the pen tip is not sealed, other places are sealed), and close the bottle cap
4, the bottle is upright (at this time, more than four fifths of the pen body is in the water, and a small part is outside the water!) Squeeze the bottle in the bottle, and you will see the pen sink down into the water
that's it! I hope you can do it successfully When Liu Qian did it, he secretly pressed the bottle with one hand, and deliberately swayed with the other hand, saying that he could get things to the bottom of the bottle with "divine power"! Joke! But he didn't use a pen. I did it for you. I understand that
has made improvements.) The above one is very interesting and easy to do.. But you have to understand the principles to succeed.. Do it carefully
this is a small online technology proction, there are many< br /> http://ikeji.cn/xiaozuo/kejixiaozuo/list_ 3.html
6. Innovative methods of making small gizmos 1, homemade badminton
preparation materials: one empty drink bottle, two sets of foam fruit net, one rubber band, one glass marble.
proction process:
1. Take a 250 ml empty beverage bottle and cut off the upper part of the bottle
2. Divide the cut parts into 8 parts, cut them to the bottleneck with scissors, and then cut each part into petal shape with the same size
3. will wrap the foam fruit net outside the bottle body, and use rubber band to fix it on the bottle mouth. Br />4. wrapped another bubble fruit net in a glass marble, stuffed it into the bottle mouth, pressed and exposed about 1 centimeters;
5. Cut off half of the table tennis ball, cover the bottom of the hemisphere on the bottle mouth, cut the four sides into whiskers, cover the bottle mouth and fix it with a rubber band
6. After beautification, a homemade badminton is finished. Play with a badminton racket to see how it works<
2. Self made soap paper
materials and tools:
white paper with good moisture absorption, small soap, a brush and disposable beverage can<
proction method:
first, cut the soap into pieces and put it in a pot. Then, put the cup on the stove to heat after the proper amount of water is filled. When the soap melts, cut the white paper into matchbox size, coat it with soap liquid one by one, and then take it out and dry it in the shade< First, we use soft paper to cut 6-8 leaves of paper
2. Fold them in half and glue their sides together to make a balloon
3. Glue the four wires to the bottom of the balloon with adhesive tape. Fix the other end of the line on the table with rubber
4. Try to slow down the speed of the hair dryer. Align the blow port up to the bottom opening and turn on the switch. The balloon will slowly grow larger, tighten the string and leave the table
4. Homemade flashlight
the specific proction method is: take off one end of the cover of a waste can (such as Lulu beverage can), and knock the other end concave with a round hammer. Roll up two No. 1 batteries with thick corrugated board, and put them into the can with positive pole up and negative pole down. Find a suitable plastic cover (for example, the cover of the magic big roll can be buckled on the Lulu beverage can), and dig a small round hole in the middle of the cover. The size of the hole is suitable for the light bulb to be inserted tightly. Insert the bulb base into the small hole. Take a piece of tracing wire, strip the wire skin at both ends, wind one end around the lamp holder, and tie a small hole on the side of the plastic cover at the other end. Put the plastic cover on the can. Check if the bulb and battery are in close contact. Here, the disposable flashlight is ready. When in use, press the wire from the side wall with your thumb on the unpainted welding seam of the can, and the flashlight will light up. When your thumb jumps away from the wire, the flashlight will go out, which is very convenient to use
5, homemade solar cooker
look for a concave reflector bowl on a large flashlight, and use a rigid foam or wood to cut a cylinder about 4 cm in diameter, so that the diameter of the circular hole can be tightly stuck into the reflective bowl. A fine hole is drilled horizontally at one end of the cylinder, and a wire with a diameter equivalent to the diameter of the hole is penetrated, and then the two ends of the wire exposed outside the cylinder are bent to 90 degrees °， 5 cm for each. The column is inserted into the round hole of the reflecting bowl, and the two ends of the wire are inserted on a foam plastic or wooden floor. Sharpen both ends of a bamboo stick, insert one end into the column in the center of the reflective bowl, and insert a small potato into the other end. Put the device in the sun, let the reflective bowl face the sun, and then patiently adjust the length of the bamboo stick, so that the inserted potato is just in the light focus. It won't be long before the potatoes are baked in the sun and fragrant<
6. Self made colored candle
materials: colored crayon, wax
proction method:
1. Find an abandoned canned beverage bucket (such as a 1.25 liter coke bottle), neatly cut off the lid, and cut the wax into the bucket< Put the bucket into hot water and stir the wax in it to make it melt completely. It's better to use boiling water. But ask your parents for help, or do it under their supervision
3. Pour the molten liquid into a well-shaped container (such as a heart-shaped frame with a small piece of erqiaokenai). Don't pour too much. As for the reasons, look down. Of course, you have to put the wick in the container first< When the original wax cools down, ah pours the melted colored crayon liquid into it according to the method of Bu Mian (the colored crayons are in use now). In this way, add different colors of wax layer by layer, and a good-looking candle will be made< Materials and tools: two sprite drink bottles, glue, carving knife and scissors
proction method:
1. Take off the green bottom cover of a sprite drink bottle, cut it into lotus shape, turn it down and stick it with the bottle body to form a base
2. Cut a green ring 2 cm wide on the green bottom cover and put it on the bottle body
3. Remove the bottle neck and cut out a wide strip of 13cm long and 8cm wide and several narrow strips of 3cm wide on the bottle
4. Use a knife to carve patterns on 3cm narrow strips
preparation materials: one empty drink bottle, two sets of foam fruit net, one rubber band, one glass marble.
proction process:
1. Take a 250 ml empty beverage bottle and cut off the upper part of the bottle
2. Divide the cut parts into 8 parts, cut them to the bottleneck with scissors, and then cut each part into petal shape with the same size
3. will wrap the foam fruit net outside the bottle body, and use rubber band to fix it on the bottle mouth. Br />4. wrapped another bubble fruit net in a glass marble, stuffed it into the bottle mouth, pressed and exposed about 1 centimeters;
5. Cut off half of the table tennis ball, cover the bottom of the hemisphere on the bottle mouth, cut the four sides into whiskers, cover the bottle mouth and fix it with a rubber band
6. After beautification, a homemade badminton is finished. Play with a badminton racket to see how it works<
2. Self made soap paper
materials and tools:
white paper with good moisture absorption, small soap, a brush and disposable beverage can<
proction method:
first, cut the soap into pieces and put it in a pot. Then, put the cup on the stove to heat after the proper amount of water is filled. When the soap melts, cut the white paper into matchbox size, coat it with soap liquid one by one, and then take it out and dry it in the shade< First, we use soft paper to cut 6-8 leaves of paper
2. Fold them in half and glue their sides together to make a balloon
3. Glue the four wires to the bottom of the balloon with adhesive tape. Fix the other end of the line on the table with rubber
4. Try to slow down the speed of the hair dryer. Align the blow port up to the bottom opening and turn on the switch. The balloon will slowly grow larger, tighten the string and leave the table
4. Homemade flashlight
the specific proction method is: take off one end of the cover of a waste can (such as Lulu beverage can), and knock the other end concave with a round hammer. Roll up two No. 1 batteries with thick corrugated board, and put them into the can with positive pole up and negative pole down. Find a suitable plastic cover (for example, the cover of the magic big roll can be buckled on the Lulu beverage can), and dig a small round hole in the middle of the cover. The size of the hole is suitable for the light bulb to be inserted tightly. Insert the bulb base into the small hole. Take a piece of tracing wire, strip the wire skin at both ends, wind one end around the lamp holder, and tie a small hole on the side of the plastic cover at the other end. Put the plastic cover on the can. Check if the bulb and battery are in close contact. Here, the disposable flashlight is ready. When in use, press the wire from the side wall with your thumb on the unpainted welding seam of the can, and the flashlight will light up. When your thumb jumps away from the wire, the flashlight will go out, which is very convenient to use
5, homemade solar cooker
look for a concave reflector bowl on a large flashlight, and use a rigid foam or wood to cut a cylinder about 4 cm in diameter, so that the diameter of the circular hole can be tightly stuck into the reflective bowl. A fine hole is drilled horizontally at one end of the cylinder, and a wire with a diameter equivalent to the diameter of the hole is penetrated, and then the two ends of the wire exposed outside the cylinder are bent to 90 degrees °， 5 cm for each. The column is inserted into the round hole of the reflecting bowl, and the two ends of the wire are inserted on a foam plastic or wooden floor. Sharpen both ends of a bamboo stick, insert one end into the column in the center of the reflective bowl, and insert a small potato into the other end. Put the device in the sun, let the reflective bowl face the sun, and then patiently adjust the length of the bamboo stick, so that the inserted potato is just in the light focus. It won't be long before the potatoes are baked in the sun and fragrant<
6. Self made colored candle
materials: colored crayon, wax
proction method:
1. Find an abandoned canned beverage bucket (such as a 1.25 liter coke bottle), neatly cut off the lid, and cut the wax into the bucket< Put the bucket into hot water and stir the wax in it to make it melt completely. It's better to use boiling water. But ask your parents for help, or do it under their supervision
3. Pour the molten liquid into a well-shaped container (such as a heart-shaped frame with a small piece of erqiaokenai). Don't pour too much. As for the reasons, look down. Of course, you have to put the wick in the container first< When the original wax cools down, ah pours the melted colored crayon liquid into it according to the method of Bu Mian (the colored crayons are in use now). In this way, add different colors of wax layer by layer, and a good-looking candle will be made< Materials and tools: two sprite drink bottles, glue, carving knife and scissors
proction method:
1. Take off the green bottom cover of a sprite drink bottle, cut it into lotus shape, turn it down and stick it with the bottle body to form a base
2. Cut a green ring 2 cm wide on the green bottom cover and put it on the bottle body
3. Remove the bottle neck and cut out a wide strip of 13cm long and 8cm wide and several narrow strips of 3cm wide on the bottle
4. Use a knife to carve patterns on 3cm narrow strips
7. This is a toy made of drink bottle and bamboo tube. When the water bottle is filled with water, it will spray water and rotate continuously to form a ring of water curtain. It's very nice. Do you want to do it with me
1. First, prepare an empty plastic bottle and a bamboo tube with a diameter of 20 mm and a length of 250 mm. It is better to use the bottle with larger capacity to hold more water
when making bamboo tubes, first saw two saws in the middle of the two ends according to the figure, and then cut off the upper half with a knife (pay attention to safety when using the knife!)
2. Then drill a 5mm small hole in the opposite direction above the bamboo joint at both ends of the bamboo tube, and then make two rubber or cork plugs for sealing< 3. Screw off the cap, drill a 2mm diameter hole on the cap, pass through a 500mm long nylon rope, and wrap a 15mm long bamboo stick with a diameter of 4-5 (mm) (Fig. 2)
4. Drill a round hole with a diameter of 20 mm at the corresponding positions on both sides of the lower end of the beverage bottle. According to figure 3, put the bamboo tube into the two holes, and the length of the exposed ends should be equal. Then pour paraffin (or glue) to block the joint to prevent water leakage.
1. First, prepare an empty plastic bottle and a bamboo tube with a diameter of 20 mm and a length of 250 mm. It is better to use the bottle with larger capacity to hold more water
when making bamboo tubes, first saw two saws in the middle of the two ends according to the figure, and then cut off the upper half with a knife (pay attention to safety when using the knife!)
2. Then drill a 5mm small hole in the opposite direction above the bamboo joint at both ends of the bamboo tube, and then make two rubber or cork plugs for sealing< 3. Screw off the cap, drill a 2mm diameter hole on the cap, pass through a 500mm long nylon rope, and wrap a 15mm long bamboo stick with a diameter of 4-5 (mm) (Fig. 2)
4. Drill a round hole with a diameter of 20 mm at the corresponding positions on both sides of the lower end of the beverage bottle. According to figure 3, put the bamboo tube into the two holes, and the length of the exposed ends should be equal. Then pour paraffin (or glue) to block the joint to prevent water leakage.
8. Self made cockroach capture box
take a 220 × 150 (mm) cardboard
the most important part of the capture box is the capture surface. Take a piece of plastic film, cut it to the same size as the bottom of the box, apply adhesive and lay it on the bottom of the box. Whether cockroaches can be caught or not depends on the adhesive. The adhesive has two functions: one is to introce the cockroach into the box, the other is to stick it firmly on the catching surface. Preparation of attractant: mix 40% meat powder, 50% flour and 10% bean cake, the total amount is about 20g, and mix well for use. The adhesive is a mixture of 20 g rosin and 10 g vegetable oil, which is heated to gelatinous state, and then the attractant and the adhesive are mixed and stirred evenly to make the adhesive
apply the paste evenly on the catching surface lined with plastic film, then fold it inward according to the original dotted line, and finally insert the tongue piece B into the notch a
e to the non dryness of the mixture of rosin and vegetable oil, the viscosity of the t can be as long as one week. Put the trap box in the place where cockroaches come and go. Because the box is dark and has the t that cockroaches like, cockroaches will scramble for the t and stick it on. After the box is fully glued, the paper box can be flattened and discarded, and the plastic film can be removed to replace the plastic film coated with t, so that the box can be reused
if the size of the trap box is enlarged and the composition of the adhesive is slightly adjusted, the paper trap can be made by thickening the coating.
take a 220 × 150 (mm) cardboard
the most important part of the capture box is the capture surface. Take a piece of plastic film, cut it to the same size as the bottom of the box, apply adhesive and lay it on the bottom of the box. Whether cockroaches can be caught or not depends on the adhesive. The adhesive has two functions: one is to introce the cockroach into the box, the other is to stick it firmly on the catching surface. Preparation of attractant: mix 40% meat powder, 50% flour and 10% bean cake, the total amount is about 20g, and mix well for use. The adhesive is a mixture of 20 g rosin and 10 g vegetable oil, which is heated to gelatinous state, and then the attractant and the adhesive are mixed and stirred evenly to make the adhesive
apply the paste evenly on the catching surface lined with plastic film, then fold it inward according to the original dotted line, and finally insert the tongue piece B into the notch a
e to the non dryness of the mixture of rosin and vegetable oil, the viscosity of the t can be as long as one week. Put the trap box in the place where cockroaches come and go. Because the box is dark and has the t that cockroaches like, cockroaches will scramble for the t and stick it on. After the box is fully glued, the paper box can be flattened and discarded, and the plastic film can be removed to replace the plastic film coated with t, so that the box can be reused
if the size of the trap box is enlarged and the composition of the adhesive is slightly adjusted, the paper trap can be made by thickening the coating.
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