Let you teach, you play games with the worst class?

Although the length is not as good as the previous one.

But this one is thicker, and the texture is quite hard.

Coupled with its easy processing and corrosion resistance, it is also a choice for excellent keels.

After finding a suitable piece of wood, Class Nine marked it again and sawed it according to the shape he wanted.

Sparks and sawdust radiated, and harsh friction sounded...

Several students started working at the same time, and cut out the model of the keel in a short while.

After that, the students who were on standby immediately took out the 'keel', put it on the work platform, picked up the planer and began to polish it.

They checked, and the bone body of the keel must be smooth and flat, only in this way can it better connect the side keel and many ribs.

It can be said to be an essential part.

The sound of rubbing kept coming out, and the shavings were rolled up bit by bit.

Over time, more and more shavings were added, and the entire keel was sanded to shape.

Finally, after a burst of sandpaper to remove small debris, a four-meter-long, two-meter-wide 'keel' with a slight curvature was completed.

Look at this decent keel.

Netizens and judges outside the screen kept expressing emotion.

Class Nine really grew up too much without knowing it.

For such a difficult task as shipbuilding, they actually completed the most important step by themselves.

The keel in front of them is not far from the keel they found on the Internet, no matter in appearance or degree of polishing, and it must be qualified at a glance.

But while everyone was praising, the judge Ke Ji clicked his tongue:

"That's not right..."

"Although the keel looks perfect, isn't it a little too small?"

"If Class Nine is going to build an ordinary ship, then this keel is definitely enough."

"But what they want to build is a treasure ship of the Ming Dynasty. The design drawings given are 150 meters in length alone."

"This is only a four-meter-long keel, which is not enough at first glance..."

Hearing this, the judges were taken aback.

They really didn't notice this just now.

So what will Class Nine do next?

They turned their attention to the live broadcast again.

......

inside the warehouse.

The students in Class Nine looked at the keel in front of them, and their expressions seemed a little tangled.

They also realized the problem of insufficient length.

Previously, they only analyzed and drawn the data, but did not consider the problem of excessive size after the drawing was completed.

Subconsciously think that as long as you follow the direction of the design drawing, there will be no major problems.

So put more energy in other directions.

Moreover, the four-meter-long trees are still very bluffing at first glance, and they subconsciously think that these woods are enough to serve as keels.

But they didn't discover this problem until they were ready to make ribs according to the design drawing again.

They are also aware of the gap between design and reality for the first time.

The gap between the two is reflected in the hard data.

The shock it brings is completely different.

The larger the scale, the deeper the feeling.

It's also easier to overlook the first time you make it.

And besides the length, they also found another problem, that is the radian.

Although the keel in front of him is curved.

But this arc is too small after all.

In the design drawings, the Daming Treasure Ship is divided into at least five floors.

The bottom layer is the vacant base warehouse, with a height of about seventy or eighty centimeters.

The second and third floors are storage, and the combined height is at least two meters.

The remaining two floors are the rest cabins for the crew, with a height of two meters.

Above that, is the deck.

Just looking at the data, the entire hull has a width of at least five meters.

The keel runs from bow to stern, and a piece of wood connects the entire ship.

In other words, the radians on both sides of the keel must have a height of at least five meters, and must also form a perfect streamlined shape.

Only in this way can the resistance of the ship be minimal when sailing.

These are all calculated by them these days.

For this reason, they were still happy for a long time.

As scumbags, they actually used mathematics to really solve a problem in front of them.

But now, they seem to consider this problem too simple...

Shipbuilding is far more troublesome than they imagined.

"Or, let's make another one, this time mark the arc that should be there, and re-polish it, so that the arc should be there."

"As for the length, let's think about what to do next?"

"Or simply buy more than 100 meters of wood?"

After a while, Li Cheng frowned.

Hearing this, Ah Wei immediately shook his head:

"Let's not say that the wood we buy now does not have a width of more than five meters, and it is impossible to make a perfect arc."

"Also, have you seen the 100-meter-long timber you mentioned?"

"Even if it really exists, it must meet the requirements of the material. Those solid woods grow very slowly. According to the wood merchants, Chinese fir is one of the fastest-growing woods."

"In this way, it can grow up to one meter a year."

"Bai Yu Mi, how long do you think about it?"

"Moreover, the most important thing is that the price of their 80-meter finished fir has reached 50. Think about it, even if it is 150 meters, can we afford it?"

"And after buying it, there is no chance of trial and error."

"So the idea you proposed can be ignored directly."

"Tch, why don't you just say you don't have any money?" Li Cheng sneered.

Classmate Awei glared back at him.

However, everyone else nodded. What Ah Wei said was correct, these two points were indeed a big difficulty.

And there was a feeling of helplessness.

"But it should still work."

"Otherwise, Teacher Ren wouldn't be able to come up with such a difficult problem."

"According to your understanding of him, will he give such a mission that cannot be completed at all?"

After Wang Yu thought for a moment, he asked.

The others shook their heads.

Although my teacher is quite inappropriate, but all the problems given can indeed be solved.

"That means there must be something we haven't considered."

"You mean, let's go back to square one and start rethinking the plan?"

Li Qi was puzzled.

Wang Yu shook his head: "No, let's just ask Teacher Ren."

"Since we have spent more than a week and have not considered or inquired about these, it means that these are really not something we can solve for the time being."

"This is the same as a question that you don't know how to do. If you don't know it, you can't do it. If you think about it according to your own thinking, it still can't be solved."

"Instead of making painful revisions here, it's better to ask directly."

"Since we can't figure it out, there's no shame in asking for help."

"Moreover, what Mr. Ren wants is for us to be able to think and act, and we have already achieved this."

"Then he should not refuse to help when he encounters a problem that he doesn't know."

After Wang Yu finished speaking, the students in Class Nine turned their hearts away and walked in the direction of Ren Yan.

Be despised be despised!

Wang Yu is right, his teacher is very reliable in this regard.

Since the other party has given a problem, there must be a complete set of solutions.

Is it shameful to ask for help if you can't do it yourself?

They really don't want to waste another week and get nothing.

And I don't know if it's an illusion.

They always feel that their 'self-esteem' is getting stronger and stronger this time.

I seldom ask questions on my own initiative, and try to solve them by myself as much as possible.

Sometimes even if I ask, I just say it casually and don't really care.

Although my teacher has been guiding myself and others in this direction.

But there is no complete rejection of help.

Is it too much to do by yourself?

Is this really good?

At this moment, they seemed to know the answer.

In everything, too much is too late.

Wang Yu, a top student, is worthy of their learning, and there are still many...

Chapter 265 Mortise and tenon and fumigation

"You said the length and radian of the keel can't be fixed?"

Ren Yan looked at Wang Bo and the others with half-closed eyes, and subconsciously yawned.

Wang Bo and others nodded:

"Yes, Teacher Ren."

"We simply can't find timber that long in terms of length."

"We don't have wood that is five meters long on the arc, and counting the arc, it is conservatively estimated that it will take about 6 meters to be usable."

"So, you're stuck?"

Ren Yan covered her mouth and yawned again, only then did she wake up slightly.

"Yes, sir, so do you think there is any way?"

Wang Bo and others looked forward to watching Ren Yan.