The draft of crosstalk sketch of middle school students' literature festival?

A: Next, we will give you a small example of popular science knowledge, hoping that you can have a preliminary understanding of scientific methods.

B: I hope everyone is interested.

A: Let's talk about something that everyone is familiar with, starting with the golden hoop.

aha ...

A: You see, it's not heavy again. Can you tell me what you think of this golden hoop?

I'm not kidding you. It's really a surprise. What's the scientific knowledge about this weapon used in the Monkey King's fight? It just gets bigger and smaller.

A: Anything else?

B: More importantly, it is heavy and can be reduced to your ears and eyes.

A: Anything else?

The design of the Xiangyun torch for the 2008 Olympic Games is based on this golden ring.

Do you have anything to add?

not have ..

A: I have much more to say than you.

B: We also want to know more about it.

A: According to the description in The Journey to the West, this wishful golden hoop is a straight rod with two golden hoops on it. It's Dayu's sea anchor needle, weighing 13500 kg. Right?

B: There shouldn't be any science in this fairy tale.

A: You'll find out soon. Let's talk about why this big stick hasn't changed size in the Dragon Palace in the East China Sea, but it will become bigger and smaller when it reaches the Monkey King.

Well, what do you think?

A: First of all, the word "ruyi" will mislead us. The golden hoop can be changed in size. It is because the Monkey King has such magic that he can even change his body, not to mention a copper stick.

B: Huh? Isn't this the best thing that everyone can change size?

A: Look at the jade preserved in the Forbidden City. Which can be resized? !

B: I've never heard of change.

A: If anything can be changed, a lot of our scientific knowledge will be rewritten, which is a very painful choice. Breaking through this obstacle of understanding, the role of this wishful golden hoop will be easy to analyze. The Monkey King just took a fancy to the golden hoop.

B: How heavy is this golden hoop?

A: If the weight of the stick in that period written in this novel is converted into the current regulations, it should be more than eight tons.

B: what a monster. Then you can give us a detailed analysis.

A: First of all, what should Dayu do first to control water?

What are you doing?

Many people should be sent to various places to learn about the local floods.

B: Yes, first-hand information should be obtained in time.

A: How did you master this first-hand information? (looking at each other)

How should I know?

A: It mainly depends on the team taking the golden hoop to the flood-stricken area for field measurement.

B: That's really difficult, or later generations will exaggerate Yu's three in and three out. He is really dedicated.

A: That's right. Whether the flood can be cured as soon as possible is very important to the lives of ordinary people. But most of the flood water is muddy and bottomless. Can I use a light color?

B: That's terrible. It will be washed away soon.

A: By the way, the huge weight of the golden hoop has solved this difficulty. If calculated according to the formula of buoyancy, it is not a problem to detect the depth of twenty or thirty meters.

B: You can measure at this depth. So how to measure it?

A: We have all studied the length dimension. Three inches is equivalent to ten centimeters now.

B: That's right.

A: You can label this 10 cm stick as A, 20 cm stick as B, 40 cm stick as C, 80 cm stick as D, 1.6 m stick as E, 3.2 m stick as self, 6.4 m stick as G, 12.8 m stick as Xin and 25.6 m stick as Ren. These are nine numbers in the sky.

This can be done. Are geometric series. It's nine o'clock. There is still ten days left to work.

A: Yes, you can't hit the top gold hoop, so you can remember the Chinese character.

B: If the flood is as deep as 25 meters, it will be terrible.

A: Geometric series is relative data. It is better to measure water regime than arithmetic progression. Two golden hoops can be divided into three parts, so each stick can display the position of the next hoop, the position of the last hoop and the whole length.

B: It's best to put the golden hoop bars in the same proportion.

A: Yes, three equal portions will do, and other proportions will do. Some people say that it is better to insert it into the mud to a certain depth, depending on the manufacturing level. You can also put a bracket under it.

B: How exactly is it measured?

Answer: You can tie a knot with a rope at a fixed distance, say ten meters, and then tie the rope end to the shore. Stand back and tell us the water depth.

How can I tell you?

Answer: According to the order of knot position, for example, the words "A, B, B, C, D, Wu, E, C and B" are sixteen words.

Is that a statement?

Answer: This shows that the width of the river at this location ranges from160m to170m, and the deepest point is on the other bank, with a value of1.6m.. It would be more intuitive to reproduce these data on the flat ground.

B: It's really simple and clear.