How can Kong Ming lanterns fly and how to make them?

Pick it up, light the candle, wait a minute, and you'll be flying.

When you buy a small commodity, it's only 5 yuan.

Concise production method: 1. Materials: bamboo strips, white paper, fine wire, alcohol, absorbent cotton, paste. 2. Production method 1. Use 3 sheets of thin white paper to paste into a cylinder sealed at the top, with a circumference of 225cm and a height of about 90cm.

2. Tie a circle with a circumference of about 220cm with a width of 1cm and a thick bamboo stick, and tie 2 thin wires perpendicular to each other at the bottom of it. 3. Place the bamboo ring at the bottom of the cylinder as the bottom, so that the edges of the two are close to coincide, and stick it with paste. 4. Tie a small circle with a bamboo skew, about 15cm in diameter, wrap about 10g of absorbent cotton around it, as a burning heart, and then hang it on the intersection of the two wires.

3. Release Choose a sunny and windless night, one person holds the left and right sides of the lamp, and the other person uses alcohol to soak the absorbent cotton and ignite it, until both hands feel that the Kong Ming lantern has a rising trend, that is, slowly let go of the hands, and the Kong Ming lantern will fly slowly, and the rise height can reach about 1000m. **Tutorial didn't find.,But I found a** detailed production process.。

Choose a clear and windless night, one person holds the left and right sides of the lamp, and the other person soaks the absorbent cotton with alcohol and lights it until both hands feel that the Kong Ming lantern has a rising trend, that is, slowly let go of the hands, and the Kong Ming lantern will slowly fly, and the rise height can reach about 1000m.

Precautions: Kong Ming lanterns must be released in windless weather and open fields, otherwise they will not only not be able to fly into the sky, but may also cause disasters. Two to three people are required to fly together, and it is strongly recommended that they be accompanied by an adult.

In addition, it can be tied to the bottom of the Kong Ming lantern, so that it can not only be released repeatedly, but also control the take-off height and range to avoid disasters.

Precautions for putting Kong Ming lanterns.

According to Article 24 of the Law of the People's Republic of China on Public Security Administration Penalties (the entry was amended on October 26, 2012, the requirements for setting off Kong Ming lanterns were abolished), if Kong Ming lanterns are set off in large-scale mass activities such as culture and sports, the public security organs may give them a warning or a fine of up to 200 yuan; where the circumstances are serious, they are to be detained for between 5 and 10 days and fined up to 500 RMB.

In the vicinity of gas stations, gas stations, high-voltage power supply facilities and equipment, communication facilities and equipment and other places with fire and high risk of burning Kong Ming lanterns, the public security organs shall give a warning or a fine of less than 500 yuan in accordance with Article 63 of the Fire Protection Law of the People's Republic of China; where the circumstances are serious, they are to be detained for up to 5 days. where the circumstances are serious, they may be detained for up to 7 days and fined between 500 and 1,000 RMB.

The drifting direction of Kong Ming lanterns cannot be controlled, so they can only "resign themselves to fate". Once the wind and direction are unstable or improperly set off after liftoff, the Kong Ming lantern will directly threaten the safety of aircraft, high-voltage power supply equipment, communication facilities, mountains and forests, and all kinds of buildings, and pose a great danger to the fire safety on the ground.

The steps to place the lantern are as follows:

1. Stretch the Kong Ming lantern first, and then tie the control line around and the bottom.

2. Fill up with fuel.

3. After ignition, press the air inlet as low as possible to reduce the loss of hot gas, but not too low, so as not to extinguish the flame due to insufficient oxygen. At the same time, the control lines around the perimeter must be straightened.

4. After the hot gas temperature in the Kong Ming lamp is sufficient, then the control line around it can be slowly loosened to maintain the stable rise of the lamp head, and the control line at the bottom must control the speed and height of the lamp body.

5. After the Kong Ming lantern is lifted off, its height and direction can be controlled by the line, or it can be allowed to float freely, so that the liftoff is completed.

The principle of Kong Ming lantern:

The principle of the Kong Ming lantern is basically the same as that of a hot air balloon, which is to use the buoyancy of hot air to make the Kong Ming lantern rise into the air. We can explain it by Archimedes' principle, when the object is the same volume as the air, but the weight is smaller than the air, it will take off, which is the same as the buoyancy of water.

When the air inside the ball is heated, a part of the air inside the ball will flow out of the ball due to the expansion of the air, so that the density of the internal air is smaller than that of the outside air, so the Kong Ming lantern will fly when it is filled with hot air.

The origin of Kong Ming lantern:

The origin of the Kong Ming lantern is said to be that Zhuge Kongming was besieged by Sima Yi in Pingyang and could not send troops out of the city to rescue, and Zhuge Kongming calculated the direction of the wind, made a paper lantern that would float, and then tied a distress signal, and then really escaped, and then later called this kind of lantern Kong Ming lantern. There is also a theory that this lantern looks like Zhuge Kongming's hat, hence the name.

The tutorial on how to make Kong Ming lanterns is as follows:

1.Cut 3-4 of the birthday candles in half (6-8 in total) and scrape the wax off the head so that each candle has a long wick.

2.Cut the foil into 12x12cm squares.

3.Fold each side of the foil square so that the wax doesn't spill out.

4.Use a match lighter to melt the ends of the candle and use the melted wax to glue the candle to the metal foil.

5.Take 3 straw connections (place one inside the other) so that the length of the straw is slightly shorter than the width of the bag.

6.Place a huge straw over the opening of the bag and glue it to the edge of the bag.

7.Place another giant straw vertically on top of the other, cross them in the middle and glue them to the edges, making sure the bag is tight.

8.Stick the foil wheel with the candle to the center of the straw and point the candle towards the closed end of the bag.

9.If you don't want it to float away, tie a rope to one of the straws.

10.Hold the tip of the bag and light the candle.

11.Once completely filled with hot air, loosen the bag.

The lantern floats because of physics. The use of hot air creates buoyancy that causes the fire to rise. The candle on the foil heats the air inside the pouch, and this heated air creates lift through buoyancy.

The density of the air inside the bag is lower than that of the air around the bag. The difference in density due to the buoyancy created by the surrounding air causes the lantern to lift from the ground. This follows Archimedes' principle, which states that any object suspended in a fluid is subjected to an upward buoyant force equal to the weight of the fluid displaced by the object.

The principle also applies to objects in the air.

There are several wires under the Kong Ming lantern, and there is an iron wire loop in the middle, put the wire ring into the hole in the middle of the wax, and then put the wax on the wire brigade key, and then light it to put it. The following introduces the specific operation method for reference, first prepare the materials: Kong Ming lantern, lighter.

1. Tear open the packaging of the Kong Ming lantern, take out the Kong Ming lantern, and then put the Kong Ming lantern (you can also write words on the Kong Ming lantern).

<>3. There is a hole in the middle of the wax, and the wire loop is pierced out of the hole in the wax.

4. Bend the wire loop so that the wire loop is close to the wax.

5. Turn the wax over and put the wax on the wire.

6. After the wax is placed, use a lighter to ignite the wax.

7. Flip the Kong Ming lantern back and grab the top of the Kong Ming lantern with both hands.

8. Let the wax burn for a while, and you can release the Kong Ming lantern.

The method of releasing the Kong Ming lantern is as follows: Spring Sparrow

Tools Raw materials: lighters, Kong Ming lanterns.

1. Confirm that the purchased wishing lamp is fine, and the main materials are: paper lampshade and wax block. Before lighting the lantern, you can write your wishes on the lantern, such as finding your beloved, going in and out of peace, and so on.

2. Fix the wax block on the wire under the paper lampshade, use a lighter to ignite the wax block (pay attention to safety, don't burn yourself), and wait for the wax block to burn completely.

3. After the wax block is fully burned and the fire is large enough, the paper lampshade will automatically expand and become larger, at this time, hold the wire ring under the paper lampshade with both hands, and slowly push the wishing lamp upward, and the wishing lamp will slowly take off and fly into the blue sky.

Precautions for placing Kong Ming lanterns

If you want to set off the Hung Ming lantern, be sure to choose an open area, in the air without any objects that may be touched, and the wind should not be too strong; Try to control the amount of fuel, it is better to maintain the burning of the lamp body for 5 minutes.

Reduce the flight altitude, or use a slender line to control it, to avoid the Kong Ming lantern flying to the obstacles, once it falls into the building or dangerous area, immediately go to check the burning cover to see the alarm or alarm; Be sure to avoid gas stations, airports, lumber mills, chemical plants, high-voltage power lines, high-rise buildings, etc. In addition, after the Hung Ming lantern is lifted, it is necessary to observe the scene for a period of time until it is safe to do so.