If we talk about the importance of "silence" to submarines, it is still difficult to perceive and not intuitive enough for ordinary people's common sense.
So,
To put it another way, the degree of silence actually determines other performances of the submarine from another dimension - other, all performances!
The reason is simple.
The quieter the hull of the submarine itself, the more powerful the engine can be packed into the submarine!
The same is true for any man-made thing in the world. As long as you have strong performance, everything else can become extremely powerful.
On the other hand, the same is true. For example, if the noise of a submarine is sixty decibels, the engine power is one hundred watts.
At this time, if you can produce an engine with a power of 70 decibels and 800 watts, then you will definitely have done a great job. All kinds of awards, bonuses, interviews, etc. will be arranged for you.
The reason is simple, although the noise has increased to 70 decibels.
But as long as the power is reduced to 500 watts, wouldn't the noise have to be 50 decibels?
Isn’t this much more powerful than the original one hundred watts and sixty decibels!
However, it is still too difficult to create a new type of ultra-high-performance engine, and progress is often very slow.
At this time, excellent welding technology can directly and greatly improve the mute effect and thereby increase the power in disguise - as well as all the derived attributes of the submarine. You can imagine its high value.
As for Li Sheng, actually.
Now for me, the power of the Tang Dynasty has taken off. In fact, I no longer need to do anything special. Whether or not to build this submarine is not particularly necessary for me. I no longer owe Datang anything.
what.
But after all, it seemed like something like this couldn't be left alone. Besides, this was a wine table, so Li Sheng started to argue, and now Li Sheng was a little bit confused.
This Mr. Chai actually, no, actually I shouldn't say "actually", was quite interested in submarines. The question was how to explain welding to him.
What is tin welding and arc welding? No one should understand this when I say it.
Li Sheng has a big head, what can I say?
And this technology is too new for Datang.
Because even the simplest and primitive welding method requires technical requirements that, although not high, are indeed very troublesome.
To put it simply, welding is to melt steel, but melting steel requires extremely high temperatures - this is completely beyond the capabilities of Datang's current methods, which are currently Datang's main high-temperature generating devices.
That's right, apart from the most core black technology steel-making blast furnace, the rest are torches and the like. It is absolutely impossible to use them to weld steel.
So Li Sheng had to explain to Chai Shao about electrolytic refining of metals, and how active metals can be used as fuel to produce high-temperature melting of steel, and how to weld steel to steel.
As for electricity.
The thunder and lightning in the sky belong to God. How can this thing be used by mortals?
Chai Shao was very interested in this part that day. He was an older man and a warrior of the country whom Li Sheng had always admired, so he had no choice but to tell this story to Mr. Chai.
To put it bluntly, for Li Sheng, or from Li Sheng's perspective, among the upper-class elites of the entire Tang Dynasty, Chai Shao was the only one who really knew him and was familiar with him, similar to Lao Li.
As for Li Jing, Li Ji, and the eldest grandson Wuji, Li Xiaogong, etc., these are considered "connections" and belong to "one of the people in the circle". They are not on the same track as real friends at all. This Chai
They are always similar to Lao Li and others.
Of course, Li Er, Wei Zheng, Fang Xuanling, Du Ruhui and other historical celebrities are even less familiar to him. Although these guys are famous, if it is purely out of curiosity, Li Sheng really wants to see the elegance of these great gods. However, speaking of
After all, there is no need for that, and at the same time, I am not as interested in meeting these guys as I thought when I first traveled through time.
After all, there are such things as celebrities in later generations, but I never chase celebrities or buy gifts or anything like that.
but.
When it comes to power generation, there is no doubt that we have to talk about electromagnetic induction, and when it comes to electromagnetic induction.
Young Master Li Sheng had to be asked by Chai Shao why this magnet has positive and negative poles? Isn't it the North and South Poles?
In short.
When Li Sheng finally finished talking to Chai Shao at midnight that day, it was almost midnight, and then he was sent to wash and sleep by Wu Meiniang.
Although this was an ordinary gathering for drinking and drinking, because we chatted so late that night, something happened that night.
In fact, the edict from Chang'an finally arrived. Not only did Li Sheng and Chai Shao see at a glance that there were some problems and hidden dangers in this military operation, but Li Er himself also felt uneasy in his heart.
!
Of course, because the entire war preparation organization and mobilization process went very smoothly, Li Er gradually became more relieved. However, of course, the edict was still sent over, not in the form of a serious official document like an "imperial edict", but just as a confidential document.
Sent by letter.
As for why this edict is a secret letter rather than an imperial edict, we can only say that people are not saints, and no one can make mistakes.
After all, Li Er is not really a god, of course he also has various human characteristics.
For example, in this military operation, although there were very practical considerations in making this decision, in the final analysis, Li Er wanted to do this because he was unhappy from the beginning.
And because of this unhappiness, Li Er himself also knew that there might be objections from ministers. Later, Wei Zhengfang, Du Chang, Sun Wuji and other ministers cooperated obediently, which was not beyond Li Er's expectation, but objectively speaking, it was indeed possible.
Opposed by the minister.
In the final analysis, there is nothing wrong with doing this military operation, but there is nothing wrong with not doing it. After all, the situation is unclear, and there is no idea how to solve it. It is natural to stand still and wait patiently.
Well, it is of course also possible that some ministers objected, and because Li Er got angry and decided to take action this time, Li Er felt an inexplicable irritability in his heart.
In other words, Li Er doesn’t want to be opposed this time, very much!
Although Li Er has always been known for accepting advice with an open mind, in fact, if you think about it, you will know that as a well-known Emperor Wu whose name goes down in history, it is no joke to get angry when he gets angry.
So in the end, when Li Er sent the imperial edict to Li Sheng, he specifically greeted his eunuchs and sent a secret message instead of going through the ministerial department to send the imperial edict!
