Roland had been thinking about revolving firearms bullets for a long time. The round lead bullets and loose gunpowder were too backward. Taking into account Anna's processing ability, it was technically feasible to directly manufacture the copper shell ammunition. The key was how to ignite the black gunpowder in the cartridge case without a reliable primer.
The primer of the early metal shell ammunition was generally mercury fulminate, which was extremely sensitive to impact. Pulling the trigger to trigger the firing pin would stimulate the mercury fulminate at the bottom of the bullet to ignite the propellant and shoot the bullet out of the chamber.
Unfortunately, no matter how much he racked his brains, he couldn't remember what kind of raw materials were needed to produce mercury fulminate. From the literal meaning, there must be nitric acid and mercury, but from the handwritten reaction formula, he could see that the reaction between these two substances would only produce mercury nitrate.
Moreover, knowing the raw materials did not mean that he could smoothly produce the finished product. During the reaction process, whether the concentration and temperature of the solution was required, and whether or not he needed to add a catalyst were also key factors that affected the finished product. Moreover, because of the sensitive characteristics of mercury fulminate, it was easy to trigger an explosion during the production. If he was not careful, he would lose two fingers, so he didn't dare to try it himself.
Therefore, Roland had to settle for the next best thing. In the case of using a metal cartridge case, he still used the flintlock ignition method. This required the spark to enter the cartridge case and ignite the gunpowder. Therefore, first of all, there must be a hole at the bottom of the cartridge case, and at the same time, to prevent the gunpowder from leaking out.
Obviously, there was an irreconcilable contradiction between these two points: the bigger the hole, the faster the gunpowder would leak out. And if the hole was too small, it would be difficult for the spark to ignite the gunpowder inside.
He needed something that could be smoothly ignited by the spark, and at the same time block the hole to prevent the gunpowder from leaking.
The first thing that Roland thought of was nitrocotton, which was commonly known as collodion.
This was also one of the few chemicals that he remembered could be used in weapons, because its preparation material was very simple: cotton was soaked in a mixture of two strong acids. The acids were the most commonly used sulfuric acid and nitric acid, and there was no danger in the production. He wanted to wait until he recruited an alchemist before he started the trial production of collodion, but now that he had set an agreement of seven days, he decided to roll up his sleeves and do it himself.
Picking up the quill, he wrote down the idea that had been brewing for a long time on the draft paper.
First was cotton, preferably undyed cotton yarn, which had been moved back from the Duke's Mansion and was now piled up in the castle warehouse. The cotton yarn needed to be degreased, otherwise the grease adhered to the surface would hinder the nitrification. The cotton yarn needed to be degreased, otherwise the grease adhered to the surface would hinder the nitrification process. But Roland had been busy developing agriculture and fighting foreign enemies, so he had no time to develop this daily necessities. However, Roland had been busy developing agriculture and fighting against foreign enemies, so he didn't have the time to develop this kind of daily necessities.
As for how to make sodium hydroxide, the simplest was probably the electrolysis of salt. So the Prince found that, in order to make a new bullet, he had to start with a direct-current generator.
*
Moreover, she noticed that most of the witches would practice their abilities in the castle backyard, which meant that Roland had also found a way to avoid being bitten by magic power. Her original plan to use this vital information to exchange for the witches' favor had been shattered. In addition to explaining the pros and cons to them, and persuading them to leave, there was nothing else she could do.
What surprised Ashes the most was Roland Wimbledon. His appearance hadn't changed much, but his gestures had an indescribable temperament, which was incompatible with his previous image of a playboy.
Why was it like this? He used to be an incompetent person, and the first thing he would think of was to escape. Not to mention standing up for others, he was even afraid to take responsibility for his own actions. Thinking of the harassment, with just a hateful look, he panicked and fell to the ground. Tilly heard the noise and came over, but he lied and said that he accidentally fell down. He even blamed Princess Tilly for finding such an ugly woman to be her guard.
From then on, Ashes' impression of the 4th Prince dropped to the lowest point.
She had thought that such a person would be easy to deal with, but in today's negotiation, she was completely unable to gain the upper hand. Especially after the other side said a one-on-one competition, she found that she couldn't even use force to threaten him. Because the other side didn't evade the question, but intended to use a competition to answer her doubts. At this time, threatening him personally, in addition to reducing the witches' favor, had no other use.
Ashes sighed, if only she could be as smart as Tilly, any problem in front of her would be easily solved. If she encountered such a situation, she would certainly be able to come up with a solution, right? The ease and expectation she had when she had first arrived had already disappeared. If it weren't for the fact that she wanted to help Tilly as much as possible, Ashes would have immediately boarded a ship heading for the Port of Clearwater and left Graycastle as soon as possible.
Unconsciously, she found that she had already walked out of the range of the town, and the other side of the river was no longer a lush wheat field, but a woodland that had not yet been cultivated.
Just as Ashes was about to turn back, she suddenly felt a fluctuation of magic behind her. She subconsciously turned her head, and a dagger pierced through her cheek, followed by a horizontal slash. The surging magic turned into a monstrous wave, Ashes felt that half of her cheek was stung, the other side's continuous moves were obviously not something an ordinary person could do. She no longer hesitated, letting her body fall completely, avoiding the dagger that swept in front of her eyes, she used one foot to eject herself.
However, the other side disappeared into thin air, and in the blink of an eye reappeared behind her, Ashes couldn't even see how the other side moved.
She pulled out her giant sword, and her body spun in a circle, causing the blade to produce a dull whistling sound, the speed was so fast that it raised a large amount of dust on the ground. This kind of attack without any blind spots could eliminate any threat within the attack range of the sword, but this trick was ineffective in the face of the other side's strange footwork, the giant sword swept through the position of the shadow, as if it had not touched anything.
Oh no, she thought in her heart, her whole body tensed up, ready to take the next round of attacks, but the shadow disappeared in front of her. The dust slowly fell to the ground, and the person was standing not far from her, playing with the dagger in her hand.
It was Nightingale.
"Is this a warning?" Ashes frowned.
"Of course not," she put the dagger back into her waist, "I just want to see the strength of an extraordinary."
"Really? I thought you wanted to say … "
"I want you to quickly leave Border Town, otherwise I won't be polite to you?" Nightingale interrupted, "In that case, what difference is there between me and Cara?"
Cara? Why did she mention the former leader of the Witch Cooperation Association? Ashes was puzzled.
"You can rest assured to persuade each sister, if someone is willing to leave with you, I think His Highness will not stop you, and I certainly won't. But … "Nightingale paused," Don't try to hurt or threaten His Highness Roland, otherwise I won't deliberately stab you next time. " At this point, she grinned and disappeared into the air, "Enjoy your life in Border Town."
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