After initially solving the problem of mercury poisoning, Marin began to prepare for the production of mercury tin foil glass mirrors. The imitation of silver frames is very simple, so the carvings on the silver frames are made like those of Venetians.
As for the problem of translucent glass, Marin is simple to make. It is even better than the Venetian optical glass.
In fact, Beihai Country has two levels of optical glass. One is lead glass with a slightly lower quality; the other is high-quality glass with chemically treated quartz sand, which is generally used as military telescopes.
The principle of lead glass is very simple, which is to add lead oxide. After adding lead oxide, the viscosity and melting temperature of the glass will drop, which is very convenient for glass processing. After all, when processing glass products, the most feared thing is that the glass melt viscosity is too high, so it is difficult to make the required shape. However, if the viscosity is reduced, it will be much easier to make the items.
In addition, the reduction of the melting temperature is also beneficial. The advantage is that the hardening speed is slower during the process of gradually cooling the hot glass melt, which makes it more convenient for craftsmen to carry out complex processing.
Since Marin promoted the use of coal and lead oxide at the Beihai Guo Glass Manufacturing Factory, the manufacturing speed of Beihai Guo glassware has reached a higher level. As for the quality, it is also very good. After all, lead glass has good light transmission and is very suitable for use as window glass.
However, lead glass also has a problem, which is that it is best not to use it as a container for food, especially a container for hot soup. Because the lead ions in the lead glass are easily dissipated after being affected by the high temperature of the hot soup and absorbed by the people who drink the soup. If you make a wine glass, lead ions are also likely to precipitate in the wine liquid.
Therefore, Marin has always banned the use of lead glass to make dietary tools, and is only allowed to be used to make window glass and other craft products. As for the glass tableware and wine glass for diet, Marin only allows the most basic green glass. Although it is not good-looking, it is better to be safe and healthy.
Of course, optical glass made after chemical treatment of quartz sand can also be used to make tableware and wine glasses. However, the cost is relatively high.
The so-called chemical treatment method is actually to grind quartz sand into powder and put it in sulfuric acid or hydrochloric acid solution for "cleaning". Quartz sand is silica that is insoluble in acid. However, impurities such as iron ions can be washed away by acid.
In this way, the quartz sand powder after pickling is used to make glass after washing, and there are very few impurities, and optical glass can be made.
However, in this era, chemicals are underdeveloped and the cost of making acid is very high. Moreover, the cost of grinding extremely hard quartz sand into powder is very high. Therefore, the high-quality optical glass produced in this method is generally only used to make military telescopes. Lead glass is the main force of translucent glass.
In fact, the quality of lead glass is a little worse than that of chemically treated optical glass. Moreover, the cost is much lower. It is not impossible to use lead glass to make telescopes. But that is the future. Now, Marin first uses lead glass to make glass mirrors.
Moreover, the quality of lead glass seems to be better than the translucent glass made by Venetians with manganese dioxide (that is, manganese soft ore). Because Venetian manganese glass initially has good light transmittance. But over time, it is easy to turn into lilac glass. It seems that manganese ions are oxidized and formed a purple manganate substance similar to potassium permanganate, which reduces the translucency of the glass and becomes "old glass". However, the lead glass in Beihai Country does not seem to have similar problems. Anyway, it is used as a mirror, not a hot soup, so there should not be many lead ions precipitation.
In other words, overall, the quality of the pirated mercury tin foil-plated glass mirror in Beihai Country was slightly better than that. Moreover, after the cleaning of sulfur powder, the safety is also better.
The only problem is probably that if the surface of the tin foil layer is not coated with varnish, it is easy to react with the tin foil layer and sulfur when it is buried in the sulfur powder to heat it, and tin sulfide is produced, which is commonly known as gold powder.
However, if the tin foil layer is well protected with varnish and the heating temperature is not too high, the tin foil layer will not be affected too much.
After the survey and imitation of the Venetian mercury-plated glass mirror, Malin immediately started to produce it and used the tin amalgam reaction to make the mercury-plated glass mirror. The original mirror, which was bought at a high price, was sent to the ship, transported to Panama, and took the Pacific route to the Ming Dynasty, and presented it to Emperor Zhengde.
Moreover, Malin specifically emphasized that this is a glass treasure mirror worth more than 20,000 taels of silver, and it is the world's first glass treasure mirror. Well, the envoy will tell the Ming Dynasty's Ministry of Rites that this was the king of the Beihai Kingdom, Malin, spent more than 20,000 taels of silver, and specially snatched the photo from a country rich in glass called Venice and presented it to the Emperor of the Ming Dynasty...
In this way, the high price and extraordinary effect will definitely make Zhengde "longyan happy" and will definitely give him a lot of rewards. Then, Marin was trying to find a way to make the bad things and bribe the eunuchs to talk bad things about the Portuguese. With preconceived ideas, it would be difficult for the Portuguese to want to leave the relationship again in the future...
Not only the Portuguese, but also the Spanish, Marin would bribe eunuchs to slander them, and cut off his idea of ​​learning Marin as a vassal of the Ming Dynasty.
Spain wants to learn from Marin to be a vassal of the Ming Dynasty? Yes, Marin would ask Kong Tai to bribe the eunuchs and ask them to say that if you want to become a vassal of the Ming Dynasty, in addition to offering treasures like the sweet potatoes presented by the Beihai Kingdom, the king of the country should also come to the Ming Dynasty and kneel down to worship the Emperor of the Ming Dynasty to express his sincerity...
This is a bit crap because the Spanish king and the Portuguese king have always been very proud and believe that their status is on par with that of the Ming emperor. In history, Spain's letter of nationality brought to the Chinese emperor by Columbus was also written in an equal tone of communication.
I want the Spanish king or the Portuguese king to take risks and travel thousands of miles to the Ming Dynasty to kneel down to worship the Ming emperor... These two countries are definitely not happy...
You should know that sailing is such a dangerous thing these days. The monarchs of ordinary countries will not be able to draw their parents and children to participate in the voyage. What if they die at sea?
Even when Ma Lin had to go to the Ming Dynasty, he was mentally prepared to die at sea and even wrote his suicide note.
Therefore, just asking the Spanish monarch to go to the capital to kowtow to the Ming emperor can cut off the possibility of Spain's success. After all, the Spanish's arrogance is obvious. Otherwise, they would not have had the ridiculous idea of ​​sending more than 10,000 troops to conquer the Ming Dynasty.
In fact, the Spanish probably were inspired by the Japanese pirates and also saw the decay of the southeast coastal garrison in the Ming Dynasty, so they came up with such thoughts.
However, the Spanish did not know that there were a large number of elite troops on the northern border of the Ming Dynasty. Japan's Toyotomi Hideyoshi dispatched 200,000 troops to invade North Korea, and was also defeated by the Ming army.
What's more, the Qi family army left by Qi Jiguang, the last god of war in the Ming Dynasty, was still there. If it really fought, Spain could at best harm the southeast coast. Once it went deep into the inland and forced the Ming Dynasty to mobilize the border troops, it would be hard to say. After all, the Ming army was not behind at that time, and the Folang machine cannons and the mechaser guns were both, and there was no pressure from the Later Jin Dynasty, so it could still be handled.
In addition, ancient Chinese people liked to use tricks, maybe poisoning food, burning camps at night, or something, keeping the Spanish sour.
There were many civil servants like Wang Yu who thought a lot of things in the Ming Dynasty. What's more, the time when Spain planned to invade was not the time when the peasant army and the inner and outer outside of the Later Jin Dynasty worked together to make trouble together. As long as the Ming Dynasty could concentrate its strength, it was still very strong. Didn't we see the Ming Dynasty suppressing the Yao people's uprising, we sent out an army of 160,000?
In addition, in this era, even if the Spanish learned the Spanish formation, they would not be able to transport tens of thousands of troops to the Far East.
Of course, while Marin stabbed Spain in the back, he would also pretend to be a good person. For example, give Spain some benefits from silk and porcelain to gain their favor. After all, Spain is strong at this time, and Marin does not want to fight against France and other powers at the same time...
It can be foreseeable that Spain might send a fake monarch to pretend to pay tribute and kowtow in exchange for the Ming Dynasty's tribute qualification. Even Marin's spy in Spain had found out that the Spanish were discussing whether to use such a strategy to defraud the tribute trade qualification. At that time, who will reveal the lies will become a problem...
Kong Tai can naturally expose it, but he cannot stand up. After all, Beihai and Spain are "allies". Therefore, in the future, stabbing the Spaniards and exposing their possible tricks, third-party forces will need to come forward.
After thinking about it, Marin put his mind on the Holy See...
This operation is also very simple, which is to ask the Holy See to send missionary priests to Guangzhou. Then, Marin would buy a French priest to join in with him.
When the Spanish made a fake tribute to fool the Ming Dynasty, let the French missionary stand up and expose the truth... The French and Spain are mortal enemies, and the exposing is not negotiated, and it is very reasonable... At that time, it is better for the French to continue fighting with Spain, it is not related to Marin's business...
But first of all, Marin needed to buy such a French missionary. Moreover, he had to ensure that after he arrived in Guangzhou, he would not convey useful information to France, so as not to arouse France's covetousness of Chinese products, especially technology (French missionaries are famous commercial spies)...
For this reason, Kohler was ordered to find a French priest who had no good impression of his motherland and was easily bought. Then he sent him to Guangzhou to preach, and was waiting to stab Spain...
Chapter completed!