Ren Yan asked again, and after a moment, Xia Yue gave a tentative answer:
"Teacher Ren, you mean the mortise and tenon structure?"
"That's right!" Ren Yan let out a long sigh.
It's so unfortunate that someone finally understood what I meant.
"All the houses in ancient Dragon Kingdom were supported by mortise and tenon structures."
"Like a giant figurine, it lay on the ground."
"Later, someone did some special research and built a replica of the same ancient building to do earthquake testing."
"The results were very encouraging. In an earthquake with a maximum magnitude of 13, the ancient houses only moved a few inches and no damage occurred."
"I remember telling you about this, why didn't you think of it?"
Ren Yan looked at the students in Class 9 with some curiosity.
The students in Class 9 blushed:
"Well... haven't we been looking for ancient shipbuilding technology? We didn't think about this..."
"Besides, can building a ship be the same as building a house..."
"Stupid~"
Hearing this, Ren Yan rolled his eyes at these unlucky students:
"The mortise and tenon structure is a kind of knowledge about mutual fit, force bearing and force borrowing. Who stipulates that it can only be used in houses?"
“It’s just that it’s used more in houses.”
"Why are you so stubborn?"
"Even airplanes have mortise and tenon joints these days."
"They are often used on aircraft propellers to achieve mutual fit and unload force, thereby reducing the wear and tear of aircraft propellers."
"Since this level of vibration mortise and tenon joints can withstand it."
"Do you still think it's too much to use on the dragon bone?"
Speaking of this, Ren Yan paused and sorted out his thoughts:
"In fact, in ancient times, mortise and tenon structures were often used on the keel in shipbuilding to relieve the force transmitted by the waves."
"The integral keel you mentioned is less commonly used."
"Only some small boats use an integral keel because they are used in rivers and lakes where there won't be too many waves."
"With this idea in mind, do you still think the keel problem is difficult to solve?"
After saying that, Ren Yan looked at the students in Class Nine.
The students nodded thoughtfully:
"Then, this unloading force..."
"You have to calculate and test this yourself."
"After studying force analysis for so long, it's time to put it into practice."
Ren Yan answered first.
The students in Class 9 were not surprised at all and continued to ask the next question:
"So, what about the curvature of the keel?"
"You can't really ask us to take it out of the wood..."
“That’s a good question.”
Ren Yan nodded and continued to throw out the knowledge in his mind:
"As for the curvature of the wood, the stupidest thing to do is to force it out."
“Not only is it very strenuous, but the stability is also much worse. Once the force increases, it will easily break.”
“So when it comes to the curvature of wood, fumigation is generally used.”
"Fumigation?" Li Cheng asked curiously.
Hearing this, he subconsciously thought that he was cooking...
Ren Yan looked at Li Cheng expressionlessly and said, "Put away your thoughts. Fumigation and smoke fumigation are two completely different concepts."
"Wood fumigation is generally used to loosen its internal structure and make it easier to process."
“It’s actually the same approach as wrought iron.”
"After fumigation, it is heated to set the shape, and then cooled naturally. With this set of skills, any wood can be turned into the shape you want."
"But fumigation requires some professional tools. You obviously didn't consider this before. The warehouse doesn't have such conditions at all now."
"What should we do then?"
After hearing what Yan said, the students in Class 9 immediately looked miserable.
After finally making up your mind to ask, the problem still cannot be solved that day?
Ren Yan waved his hand and sat up from the chair.
"I have been with you for such a long time, you should also subconsciously develop in an all-round way."
"Since we don't have the conditions for fumigation now, can't we make one?"
As he spoke, Ren Yan raised his leg and walked out of the warehouse.
The students in Class Nine looked at each other and quickly followed outside.
They knew that their teacher was going to start making something again.
But then again, is there anything that our teacher can't do?
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