Of course, since Li Sheng was determined to expand overseas territory and train the navy, he couldn't really leave all the power to Adjutant Qin.
After all, the ocean is dangerous, stormy and unpredictable...
Therefore, while Li Sheng asked Qin Ruochan to help him train the navy, he also gave Qin Ruochan tutoring lessons on various naval subjects after dark at night.
Li Sheng had already acquired these subjects in the lottery before, and now he was quite comfortable teaching them. Qin Ruochan also learned very quickly, but in order to ensure that there would be no problems in the secondary dissemination of knowledge, Li Sheng still taught her almost step by step.
.
at last……
Li Sheng checked and evaluated the sailors he recruited from time to time, and found that they were pretty good. Compared with the old seals of later generations, serious naval soldiers were of course less interesting, but overall, they had basically reached the modern level!
He didn't encounter many problems in this regard, and Li Sheng breathed a sigh of relief.
Because although the big ship has been completed recently, Li Sheng feels that there are more projects that need to be solved in front of him...
Let alone the distance, just talking about navigation and positioning methods, this must be solved.
As early as the Han Dynasty, China had developed the technology of "crossing the ocean to find stars" to confirm its own position through astrology.
In the later Age of Discovery, Europeans' thirst for science reached an extreme.
Let's just say that Halley, who discovered Halley's Comet, spent more than ten years alone in a deserted place on the American continent to complete the star map of that time.
Taoist priests from all walks of life in ancient China were naturally skilled in stargazing, and some of them were even extremely powerful.
For example, Zhuge Liang, Liu Bowen...
Moreover, even if we don’t talk about top-notch figures like these, the founding heroes who have had countless fans for countless years in later generations, even ordinary Taoist priests often have a lot of knowledge in astronomy.
For example, Wei Zheng and his group of brothers are all good at astronomy...
but……
Gradually, as time goes by.
In later generations of China, due to various reasons... overseas exploration, the aggressive atmosphere was gradually suppressed, and the overall cultural atmosphere became more and more closed and involuted.
At the same time, due to many wars.
In the many troubled times, countless treasures of ancient knowledge and wealth were lost.
Among them, the books of sages, the teachings of Confucius and Mencius, and the subtle words and great righteousness were naturally carefully protected.
So what should you do when you can’t care about protection in troubled times...
There is no doubt that it is natural to sacrifice some tricks...
That's why.
In the early Ming Dynasty, the technique of taking three treasure eunuchs to travel south to the West, and finally as far as southern Africa, was gradually lost in the late Ming Dynasty and Qing Dynasty.
therefore……
This is actually the goal of Li Sheng's recent work.
Although the technology of traveling across the ocean had been invented in the Han Dynasty, it was not until the Tang Dynasty...
Because after hundreds of years of division and turmoil, these technologies have not been developed.
even……
To this day, Li Sheng has never heard of this technology of traveling across the ocean from people in Tang Dynasty.
There is no doubt that according to the script of the previous life, this technology is still lost, waiting to be discovered, expanded and supplemented, and carried forward.
but……
Looking for cultural relics is a search for cultural relics, but since they can't be found at the moment, Li Sheng will not stick to this.
Fix the ones that can be used first, this is better than anything else...
Therefore, Li Sheng's solution this time was to try to make a sextant.
…
The use of sextant is a bit complicated, because the observation results need to be calculated to get the specific longitude and latitude.
After all, what is observed is only the direction data of sunlight and stars, not a map directly.
This calculation problem requires the use of trigonometric functions.
Speaking of trigonometric functions, Li Sheng has a headache...
Ma De, it took him a full week just to teach Qin Ruochan how to do it.
When Qin Ruochan teaches his sailors how to use it, it will be even more...
Who knows how long it will take to go.
But Li Sheng also knew that this problem... would have to be solved sooner or later, and it would only depend on how far it was taught.
At least, Adjutant Qin has learned the lesson, right?
In the midst of this arduous task of teaching trigonometric functions and the even more arduous task of scientific research on steam engines.
Li Sheng has more important things to do.
No matter how beautiful the grand narrative of other plans and strategies is,
First of all, we have to finish what the court has assigned us, right?
There are a total of nine large shipyards to be built. This first one is under my own name, and I plan to transform it into an armed yacht in the future. Although it is well-equipped and has the most well-trained personnel, in fact, this is only the smallest shipyard.
There are still eight shipyards waiting to be built in the future!
This series of large-scale construction tasks...
In addition to the shipyard itself, there is also a large amount of peripheral work.
Like digging a canal!
This canal is admittedly not part of the shipyard, but it is an indispensable and important "peripheral".
Because the original shipyard was experimental in nature, it was built on the seaside. However, the eight subsequent shipyards were built around the West Lake, so the opening of the canal was naturally a major project.
We have to connect the West Lake to the seaside!
And the depth cannot be ignored.
This requires a lot of blasting operations, and at the same time... because the shipyard is built around the West Lake, a canal must be opened to the seaside.
How much farmland, irrigation canals, and water resources will be occupied along the way? All this requires real money and silver to be purchased from local farmers.
After going back and forth, Li Sheng gradually felt that the budget was overspending.
Of course, overspending is meant to be overrun. After all, part of the entire construction cost of the shipyard, in terms of financial design, has to be filled with the profits of the previous shipyard.
Now, due to Li Sheng's inadvertence, eight shipyards were built at the same time, and the budget was naturally stretched thin.
So in order to generate income and avoid overturning the business, Li Sheng also started a timber business.
Speaking of this timber business...it's quite an accident.
Li Sheng felt that it was simply full of drama!
At the front end, Li Sheng was actually very confused.
Mud, if you want to build a mast, a top-quality piece of wood is enough.
Because the large ship may need to be replenished to a three-mast size, wood may be needed later.
But even so, how much wood can be used?
Li Sheng wanted to buy better wood in a remote area, but he couldn't find it anywhere.
Are you afraid that it is not available in the whole country?
Finally, there was a scene where Ying'er hurriedly came to Li Sheng to report the news.
But this will...
Although Li Sheng didn't know who bought the wood to build a house.
But now he is really grateful to this big man behind the scenes.
Because there is a big gap in high-end wood, Li Sheng is just right, so he can start a wood business...