Although Henry VII fooled the Roman inquiry, his enemies did not intend to let it go. Soon, Henry VII's use of the bones of the fake Edward V and Richard, Duke of York, to fool the Roman investigation was publicized. The most unfortunate thing is that he was spotted on the spot.

Although Henry VII's statement fooled the Roman investigation team, Henry VII's opponents, when they sent people to spread the news, insisted that it was not a misunderstanding, but that Henry VII deliberately falsified. Because, there is no such thing as Richard III's murder of the king......

As a time-traveler who understands the power of rumors, Marin knows how easy it is to spread a rumor that is three points false and seven points true in this era.

Therefore, Marin directly sent the representatives of the North Sea Chamber of Commerce in England to quickly spread rumors in England - His Majesty Henry VII could not get the bodies of Edward V and Richard, Duke of York, so he deliberately found two fake bones to pass off the bones of Edward V and Richard, Duke of York. It can be seen that Richard III's murder of the monarch is clearly a rumor. And Henry VII's murder of the monarch is obvious to all......

In fact, this cannot be considered a rumor either, most of which are speculative facts. Marin even had people propagandize in England that Richard III's reforms were good for the common people of England, but to the detriment of the noble group. So, Henry VII colluded with these disadvantaged nobles and broke out into a rebellion......

The story quickly spread among the English people and caused an uproar. Previously, after Henry VII came to power, in order to show his legitimacy, he desperately smeared Richard III and smeared Richard III as a tyrant who did all kinds of evil. He, Henry VII, raised an army to defeat Richard III, and it was in accordance with God's guidance...... The nobles who rebelled against Richard III and defected to Henry VII were also portrayed as wise figures who "abandoned darkness and turned to light......

However, this rumor, which seemed to be a rumor, tore apart the fig leaf of Henry VII and his supporters......

Enraged, Henry VII ordered a strict investigation into who had spread the "rumor", and vowed to find out who had publicly hanged them. It's a pity that Marin's spies are so careless? Therefore, Henry VII did not catch any useful people, but a large number of ordinary people who secretly spread "rumors".

At this time, Henry VII happened to be annoyed by the Roman investigation team, and when he heard such "rumors", he was naturally furious. Then, some hapless ordinary people were hanged on the execution ground......

Marin's intelligence officers took the opportunity to spread the news - the "monarch killer" was annoyed and angry, because the secret was revealed by humanity, so the reaction was so big......

Then, although the news spread by the people seems to have died down, in private, many ordinary people believe this statement......

……

Of course, none of the above matters. Even if ordinary people know some so-called inside stories, they will not have much impact on the overall situation. Marlin's real purpose was to build momentum for Edward.

After all, Marin was going to lead tens of thousands of troops to help Edward defeat Henry VII and capture all of England. It would be embarrassing to find out that no one supported Edward after the defeat of England.

In this era, although the love of the people is not important, it cannot be without. After all, there is the love of the people, and Edward also had a light on his face when he ascended the throne, right? If everyone shouts and fights, even if they seize the throne, they will have to face one rebellion after another......

……

On the Swedish side, another batch of copper ingots was delivered. It just so happened that Marin now had tin and zinc ingots in his hands. As a result, Marin suddenly remembered the legendary cannon copper, which was specially used to cast cannons, and the naval copper, which was specially used to wrap the part of the waterline against seawater corrosion......

The so-called cannon copper is a kind of bronze. Of course, not the simplest copper-tin alloy bronze, but also a part of zinc added. The ratio is 88% copper, 10% tin and 2% zinc.

This ratio is the best ratio that has been repeatedly verified by later generations. Marin is not a metallurgical major, and it is not clear why guncopper should use this ratio. However, he knows that he can just use it, so why think so much?

Before, Marin cast copper cannons, and could only use bronze of copper-tin alloy, which was no way. Because, at that time, he didn't have zinc in his hand. Now that the zinc ingot has been made, Marlin naturally wants to make standard guncopper to cast the cannon. Although I don't know why I use this ratio, it has been repeatedly certified by later generations, and it can't be wrong to make gunmetal according to this ratio......

The reason for the artillery bronze was that Marin wanted to cast 12-pound Napoleonic guns in batches. The 6-pounder gun, which is now more popular in the Marin Army, can only penetrate half a company column at a distance of 200 yards. The 12-pounder Napoleonic gun, on the other hand, could penetrate an entire company column at a distance of 600 yards, and it was a very easy one.

Moreover, the copper cannon casting can be made by using the iron mold casting method, the casting speed is very fast, and a casting cannon group can cast several guns a day. And cast iron cannons, because there are many problems with iron, when casting cannons, it is best not to cast iron molds. However, if you use clay mold casting, it will take two or three months to dry the clay mold alone, which is very inefficient.

Although Marin can now make steel, Marin does not plan to promote steel cannons. Why? This is setting a high bar for other countries......

The 12-pounder Napoleon cannon was the most powerful infantry gun known to Marin. To make a 12-pounder Napoleonic gun, it costs 1,227 pounds of brass. If you cast 100 guns, it would cost you 122,700 pounds of gunbrass. At the current price of copper in Europe, casting 100 12-pounder Napoleonic cannons would be enough for most nobles to go bankrupt.

Therefore, Marin's promotion of copper cannons can not only use the iron mold casting method to quickly mass-produce equipment, but also create cost barriers for other countries - you know this cannon is good, but you just can't afford to equip it. At least, a lot of equipment can't afford it......

In the future, Marin will invade Japan, which is not only rich in gold and silver, but also extremely rich in copper ore. As long as you put your hand into Japan, you don't have to worry about the source of the materials for casting guns......

But the problem is that when it came to gunpowder, Marin encountered a real problem - zinc vapor is volatile......

The melting point of copper is 1083 degrees, but zinc is vaporized into steam at 907 degrees. Therefore, it is simply not realistic to melt copper and zinc ingots together. When heated, the copper has not yet melted, and the zinc turns into zinc vapor......

In desperation, Marlin had to use a clumsy method - first burning zinc ingots into zinc oxide, and then mixing copper, charcoal and zinc oxide together to heat. Charcoal and zinc oxide undergo a reduction reaction to form zinc, but it is incorporated into the copper block.

Then, the zinc-containing copper block is melted again and stirred evenly to obtain a copper-zinc alloy......

As for the tin, it is completely possible to wait until it melts before adding it. Because, although the melting point of tin is low, the boiling point (vaporization temperature) is as high as 2260 degrees. When the copper-zinc alloy is melted, add tin water directly to it and stir evenly. In this way, the guncopper was produced......

As for navy copper, it's a different ratio. It is formulated with 70% copper, 29% zinc and 1% tin. Because the zinc content is higher than the tin content, it belongs to brass. And the gun copper tin content is higher, so it belongs to bronze.

Navy copper is characterized by strong corrosion resistance, especially seawater corrosion. Therefore, this ratio of brass is the most suitable for making copper that covers the waterline of wooden boats. This kind of copper skin can not be changed for many years. Because, it is very resistant to seawater corrosion.

Even in later generations, naval copper was a widely used copper alloy, which could be used in the manufacture of ship propellers, as well as in the manufacture of copper pipes and valves that passed through high-temperature steam. Marlin's current steam engine can use a large amount of naval copper to make pipes and valves that pass through steam to enhance the service life. Unlike iron, it is susceptible to oxidation under the impact of high-temperature water vapor......

In short, with zinc, Marin can make cannon copper and navy copper on a large scale, and with cannon copper, it can be used to make high-quality bronze cannons; With navy copper, it was possible to make important components such as copper pipes and valves needed to wrap the copper sheets on the waterline of battleships and steam engines......

I almost fell asleep on the table again, it was so cold, and it was finally modified, more than an hour, see you forgive me! The old cow shivered from the cold, and now had to find a warm bed......