"You said you can't figure out the length and curvature of the keel?"
Ren Yan half-closed his eyes and looked at Wang Bo and others in front of him, and yawned subconsciously.
Wang Bo and others nodded:
"Yes, Mr. Ren."
“We simply can’t find wood that long.”
"We don't have wood that's five meters long for the arc, and if you take the arc into account, a conservative estimate is that it would take about six meters to be usable."
"So, you're stuck?"
Ren Yan covered his mouth and yawned again, then he came to his senses a little.
"Yes, teacher, so do you think there is any solution?"
Wang Bo and others looked at Ren Yan expectantly.
Ren Yan did not answer directly, but asked the students in front of him:
"Before you came to me, have you ever thought of a solution yourself?"
"have!"
Wang Yu nodded and told the ideas of Class 9 and others:
“In terms of length, we just can’t handle it.”
"But in terms of the curvature, although there seems to be a difference of about one meter, if the overall volume of the wood is taken into consideration, it is not impossible to deduct one more meter."
"But the biggest problem with this is quality."
"If the curvature is too large, the wood will lose its original toughness."
"And the curvature of the keel alone is still far from a complete keel."
"We did a lot of research online and found that the keel used for ships is made from a single piece of wood, with the dragon head, crest and tail all in one piece."
"But right now, we clearly can't do that."
After Wang Yu finished speaking, the other students nodded in agreement.
Ren Yan calmly changed his sitting position: "I still have some ideas."
"Did you check it on Baidu?"
Everyone nodded.
Ren Yan smiled slightly:
"I have looked carefully at some of the large wooden ships. Some of them are just concepts, and most of the manufacturing methods are transformed from modern industry."
"The keel is basically cast in steel, so it can be made into whatever shape you want."
"But have you ever thought about this: if ancient shipbuilding was really done the same way as modern shipbuilding, would they really be able to find trees that are at least 150 meters tall?"
“Even if the natural environment was good in the past, trees of this height still somewhat push the limits, not to mention the need to use the right wood.”
"Then...how did the Ming Dynasty make dragon bones?"
Wang Bo spoke in surprise.
"Simple, splicing~" Ren Yan replied casually.
"Splicing?!" The students in Class 9 were all shocked:
"Teacher Ren, will that be strong?"
"Those ships are going to sail in the sea. If they were really spliced together, wouldn't the keel fall apart immediately if a wave hit them?"
The students of Class 9 found it hard to be convinced.
Not only them, netizens and judges also didn't quite believe it.
Even Ren Yan couldn't believe it at first.
But this is indeed the fact.
This bit of knowledge was recently acquired by Ren Yan through the 'search engine' in his brain.
At first he completely scoffed at this statement and thought it was a fantasy.
A wooden keel, still spliced.
If a small wave hits it and it doesn't fall apart, it can be considered a great skill.
until...
He saw the 'demonstration picture' provided by the system.
In the picture, the waves hit the spliced keel, but the spliced keel actually relieves the force because of the mutual fit between the splicing points. Although it looks extremely dangerous, it is actually as stable as an old dog.
As long as the waves are within the range that the wood quality can withstand, no matter how big they are, it can withstand them all.
Even because of the unique way of unloading force, the bearing range can be even larger.
On the other hand, let's look at another 'demonstration picture' of a whole wooden keel.
Once the wave reaches its endurance capacity, it will break off in the middle.
This made Ren Yan experience what it means to be too rigid and easily break.
At the same time, it also completely changed my own ideas.
And in his subsequent thinking, he gradually understood the reason for this phenomenon.
Now is a good time to tell my students.
"Who told you that splicing is definitely not strong?"
Ren Yan looked at the students of Class 9 with great interest, and a smile appeared on his lips again:
“Think about the situation where you make tables, chairs and benches on a farm.”
"Think about the ancient buildings in our Dragon Country."
"You can often hear about landslides in modern buildings, but have you ever heard about landslides in ancient buildings?"
After saying that, Ren Yan waited for the student's answer.
Then the next moment, he was choked to death.
“Isn’t it because there are too few ancient buildings left today, and experts have been maintaining them all the time?”
"Besides, if something like this really happens, the guards will be held responsible. Who would dare to speak out? Shouldn't they just handle it privately?"
Student Awei expressed his thoughts very frankly.
The students around looked over with admiration.
There aren't many people with such a strong head these days...
Even Wang Yu, who was rather stubborn, looked at A Wei with admiration.
As for Ren Yan, after coughing twice, he gave sincere praise to A Wei.
"Don't talk like that when you go out next time, you'll get beaten."
Then, he forced his way back to the topic:
"I'm telling you this so you can experience the spirit, okay?"
"Don't you understand what these words mean?"
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