I am Da Song

Chapter 620 Reverse Engineering
Su Dai is not a god, it is impossible to help Zhao Huan solve everything.

But in terms of water transportation, it is really within the scope of its capabilities.

There are only two projects she studied, namely the train project and the water supply project in Tokyo.

The tap water system is really not a high-tech, after all, there were such projects in ancient Rome thousands of years ago.

The most important reason why Tokyo did not develop its own water supply technology like ancient Rome is that the terrain is flat and there is no drop of water towers.

Taiyuan Academy and Kaifeng Prefecture have solved this problem through artificial rockery and steam engines.

Therefore, Su Dai has some understanding of water patterns and steam power.

Zhao Huan said to her: "Qing, do you still remember the many ideas that Qing talked about with me when we met in the library? Among them was sailing on land."

Su Dai nodded, and said: "This is the idea of ​​other people in the book. I introduced it to the officials and Fan Sizhong."

These are the assumptions of a non-powered system, and finally solved by steam power.

Su Dai's eyes lit up, and she asked, "Does the official want to design a steam-powered tank boat?"

Zhao Huan's later generations really saw steam-powered tank boats in the Beijing-Hangzhou Grand Canal. There are no rails, and its shape is irregular, looking like a centipede.

Zhao Huan replied: "After the steam train is solved, the focus of the next step is naturally the steam-powered ship."

This doesn't even require Su Dai to advance. The process of replacing the steam engine on the ship is much faster than Su Dai and even Zhao Huan expected.

At present, many pedal-operated ships have their own power system and torque arm, but they used to be manpower, but now they have to be replaced by steam power.

The smoothness of modification in this area is obviously much better than that of trains.After all, the shape of the ship has not changed much, only the power module in it has been changed, which is much less labor-saving than designing a train from scratch.

But Zhao Huan said: "Steam-powered ships have been designed by the shipyards in Jiangnan. I hope that what you solve is not this aspect, but how to transport goods to Tokyo more labor-saving and cheaper, so that water transport can be obtained. Greater profits lead to better development."

Su Dai thought for a while and said: "There are only two ways to reduce the transportation cost. The easiest way is to increase the load capacity. In the past, the freight cost of [-] guan can transport [-] guan of goods, and the benefit is ten times. Improving the technology makes one Baiguan freight can transport [-]guan goods, benefiting a hundred times.”

The idea is very simple. In the past, one stone of grain was consumed to transport one stone of grain, but as long as the process can be improved so that the transportation volume is far greater than the consumption, the income-expenditure ratio will be very objective.

It's just that there's a problem with this problem.

Zhao Huan asked: "There are many bridges on the canal, right? If the cargo capacity of ships is increased, do we need to redesign the bridges?"

Moreover, the draft of ships becomes deeper, and whether the canal can pass is another problem.

Like the Besli Canal, ships above Wanshi cannot pass through it now.

Su Dai nodded and said: "Some bridges are indeed outdated by the times and should be rebuilt. If water transport is not to be eliminated by trains, increase the cargo capacity of its ships, and constantly break through ten thousand stone, fifty thousand stone, one hundred thousand stone giant ships must experience of."

"Well, it makes sense. If you can't break it, you can't build it. I will discuss this matter with the Ministry of Industry and rebuild the bridge."

"Even the bridges in the city of Tokyo have to be rehabilitated. I have seen the painting "Along the River During the Qingming Festival" that I painted by my master. To pass certain bridges, the tank boats must lower their masts."

Although the technology that the mast can be retracted is very superb, as long as it is a movable technology, basically the same efficiency is definitely not as good as a fixed one.

Su Dai said: "This is also the second item I want to talk about. Improve the mast and sail of the tank boat. Significantly reduce transportation costs."

That's right, Taiyuan Academy's proposal is very back to basics, which is to improve sailing.

Su Dai said: "Although there is already a coal-burning steam engine, according to my theory, Taoism follows nature, and the closer it is to the natural principle, the more powerful it will be. The sail is like this. Even if there is a steam engine, it still has an irreplaceable effect."

Zhao Huan laughed, the way is natural, and the technology of Song Dynasty really took a path with oriental characteristics.

The wisdom of the ancestors can be said to be very primitive, but it can also be said to point directly to the true meaning of the Dao, the source of truth.

Sails, a backward thing in the impression of ordinary people, are actually widely used in the first generation of steam ships.Then it fell for a while.

But when the supercomputer came out and set off a new round of industrial revolution, the original sail became popular again.

Under the most advanced manufacturing process, the ocean-going new energy-powered ships can adjust the direction of the sails all the time, so that the sailing speed is significantly improved, and the transportation cost is greatly reduced.

Therefore, the most advanced superstar tankers are often equipped with supercomputers and a large number of sails.It can be said that it shows the civilization of human beings spanning thousands of years as a whole.

This kind of situation is suitable for a sentence that follows the law of nature.

Su Dai said: "Officials should know the principle of sailing, right? Sailing doesn't have to be with the wind to sail."

Zhao Huan nodded. It really takes a little cultural reserve to know this.

Fortunately, Zhao Huan's descendants also liked to read some miscellaneous books, so he didn't lose the face of higher education.He is indeed very educated in mathematics and chemistry, but he is not a worthless cultural desert.

The sailboat is in zigzag shape, and the advantage is that when the wind passes through the arc surface similar to the wing, it will generate a certain lift. Therefore, in order to continue to obtain lift, it is necessary to constantly adjust the sail position.

And when all these are applied to the actual engineering design, the key to obtaining higher speed is mainly three points, one is to minimize the driving resistance, the other is to be able to sail at an angle close to the front and the wind to the maximum, and the third is to Overcome lateral forces and roll.

These seem complicated, but in fact, even if they don't understand the distance, skilled craftsmen and sailors can choose the optimal solution through observation.

But Su Dai and the Tai Academy are going to use professional theories to speed up this process, quickly combine sailing and steam engine technology, point to the essence of the road, and follow the natural way of the Song Dynasty.

But there is actually a trickier problem with all of this.

That is, the order of Da Song's technology tree is actually chaotic.

Theoretically, there should be a breakthrough in classical mechanics first, and then the successful application of technology, followed by the invention of the industrial revolution.

But the Song Dynasty is basically the opposite. First, there are the most direct revolutionary inventions, then the technology is studied, and finally the principles are summarized.

For example, Zhao Huan directly told the complete form of the steam engine to the technology developer of Song Dynasty.

Countless scholars in the Song Dynasty searched for clues and carried out reverse engineering.

(End of this chapter)