The sun cooker was originally made by Marin casually, so that the sailors could cook and eat at sea. After all, ships have a limited capacity to sail with large amounts of firewood. As a result, sailors' diet at sea was often based on cold and dry food. For example, dry bread and bacon, sausages, etc., are all convenient foods that sailors often eat.

The sun cooker is popular with sailors on the voyage because it does not require firewood. After all, no one wants to eat something dry or cold when they can eat something hot, especially when the weather is cold.

If sailing along the coastline, sailors can often come ashore to pick up some dead branches and come back to make a fire to cook, or simply build a fire on the shore. But if you're sailing in the middle of an ocean that doesn't depend on land, then you don't want to make a fire and cook. Unless, you have a sun cooker......

But the technical content of the solar cooker in this era is not low, first of all, you have to have an excellent reflective surface. For example, the white iron sheet made by Marin......

This alone is a major technical problem. Other countries can temporarily replace tinplate with tinplate, but one of the drawbacks of tinplate is that once it is worn, the wound of the iron sheet is easy to further oxidize and corrode, and then a large area of rust and rot. Unlike galvanized white iron sheets, even if you are scratched, you can continue to use it for a long time.

Therefore, Marlin can use zinc to mass-produce corrosion-resistant galvanized white iron sheets to make durable solar cookers. And if others are copied, they can also be replaced with tinplate. However, the tinplate must not be damaged. Otherwise, the solar cooker will be destroyed.

Of course, you can also make a solar cooker from white silver skin instead of tinplate. However, this is also too trenched. It is estimated that the solar cooker will be stolen......

In addition, others do not know that the bottom of the pot needs to be painted black in the pan of the solar cooker. Marin has studied science, so he naturally knows that this is the most heat-absorbing. And others don't know, if you don't do it, the efficiency is far behind......

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Coincidentally, the Buckens lead-zinc mine on the island of Newfoundland sent back a large number of lead and zinc ingots, and Marlin took the opportunity to make hundreds of solar cookers. Then, they made the air duct rolled with white iron sheet and nickel iron sheet (mainly afraid that the white iron sheet would not last too long under high temperature steam) to guide water vapor. This kind of iron pipe is placed in the pool, and it is easy to achieve the effect of condensation. As long as the pipe is long enough and the pool water is replaced in time (the pool water is replaced when it is hot to avoid affecting the condensation effect), the water vapor can be easily condensed into fresh water droplets and flow out......

Marin planned to take the sun cookers with him to Panama City on the other side of the Pacific Ocean when he went to Panama. Then, one of the four armed merchant ships of the 250 class with nickel-iron plates nailed to the bottom of the ship left by Amerigo over there, was sent to Iquique, where it was settled.

And Marin will be accompanied by a group of Egyptian slaves and camels. They will be sent aboard a Class 250 armed merchant ship and bound for Iquique.

However, Marin takes the secrecy of Chile's saltpeter mines very seriously. Therefore, Marin asked Kohler to select a group of the most reliable captains and sailors, who would drive the ship to the Hereafter Iquique according to Marin's coordinates, and settle there. Then, head deep into the desert in search of saltpeter mines.

In order to facilitate the search for saltpeter, Marin spent a lot of money to buy several slave craftsmen who were familiar with saltpeter from the Mamluk dynasty of Egypt for this saltpeter mine search. Marin would like to send his own craftsmen to find saltpeter mines, but the people of the special North Sea Country may not be accustomed to the tropical desert climate of Iquique. If you die of heat and thirst within a few days of being sent, it will not be worth it, and it will be a mistake. Therefore, Marin had no choice but to send people to quietly spend a high price in Egypt to buy a few slave craftsmen who knew how to prepare gunpowder and were familiar with saltpeter, as the main force in the search for saltpeter mines in the desert.

……

While arranging the exploration and exploitation of saltpeter in the desert of northern Chile, Marin accidentally saw Caesar and his brother Robert wandering wild in the palace garden through the window.

Marin suddenly slapped himself on the head, eager to give himself a slap in the face. Because, he suddenly realized that he didn't seem to have time to cultivate his son......

Caesar was already 7 years old, and according to the aristocratic rules of the Middle Ages, when he was 8 years old, he could no longer go wild, but began to receive formal knightly education.

Generally speaking, lower-ranking nobles will send their non-eldest sons to the homes of higher-ranking nobles to serve their followers as boys, serving their followers and their wives. When you're not working, you also need to learn some cultural basics and take care of the horses. Sometimes, you have to learn a little bit of swordsmanship.

After the age of 14, he had to unload the task of serving the boy and began to concentrate on learning the "Seven Arts of Knighthood", and martial arts training became the main learning project. Because, at this age, boys will become powerful. Unlike before the age of 14, because he was too young, he couldn't wear armor or hold weapons, so he could only use a small wooden sword to compare basic swordsmanship......

However, this was the traditional German model of knightly education. Marin obviously won't raise Caesar like this, but intends to go the Imperial Mode route.

The so-called "emperor model" pays more attention to wisdom, especially the wisdom of employing people. The emperor does not need to be very capable, but he needs to be able to use people. Moreover, it is necessary to be able to control the talents that are being used and avoid their backlash.

As for martial arts or something, that's secondary. If someone wants to assassinate someone, just shout "Escort!" Escort! "That's it.

Ma Lin himself is not outstanding in martial arts, but he is shrewd, learning from Cao Cao, and specially looking for a perverted general like Karn. As long as Karn was around, ordinary people didn't want to get close. Even if you get close, you will be quickly killed.

……

Therefore, Marin's education plan for Caesar was to learn basic cultural knowledge first. Then, when you are almost at the level of graduating from elementary school, you will study psychology, thick black science, as well as "The Art of War" and "Thirty-six Strategies" and so on......

When he had learned all of this, Marin would teach him physics, chemistry, biology, geography and other modern knowledge. Moreover, it is a complete version, not a cut version that is taught to ordinary people.

Marin's textbooks for ordinary people have removed a lot of knowledge that does not conform to religious views. In addition, the knowledge that was destined to be difficult for ancient people to understand, such as automobiles, airplanes, and electronics, has also been deleted, including many modern industrial technologies. Because, even if Marin teaches these things to the students, they can't understand them, and it will be difficult for them to achieve their goals.

However, for Caesar, Marin intends to teach him everything, whether he understands it or not.

In addition, Marin will also draw a complete version of the world map, including the distribution of mineral resources in North America, South Africa, Australia and other places, which will be drawn for Caesar.

There are some places that Marin may not be able to control in his life. After all, development also requires a process. However, he believed that Caesar should be able to use these legendary resources......

Marin suddenly felt that he had worked hard all his life, as if he was just trying to lay the foundation for his son Caesar......

Perhaps, Caesar is the real protagonist. And the story of my time travel, you can take a name, "My Dad is a Time Traveler", ......" Marin suddenly thought with great emotion......

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