MTL - Release that Witch-Chapter 23 Source of power

"Come, try putting the two iron plates together," Roland said.

Anna held out her finger and pressed it on the seam of the iron plate. The flame is ejected from the fingers and the interface melts at a rate visible to the naked eye.

"Reduced firepower, come back again."

She nodded and did it all. The two iron plates are spliced ​​at 90 degrees and are firmly welded together.

Roland scrutinized the lower interface and found the effect as he imagined - a perfect weld without any flaws. If it is slightly polished, the fluid traces from the molten iron are worn away, and the two iron plates are almost the same as the once-formed forged body.

"Very good, Miss Anna, it’s awesome," Roland couldn’t help but admire. "Next, we've connected the other two iron plates."

"What is this? An iron... bucket?"

"No, this is a cylinder," he corrected.

"Cylinder?" Anna repeated in confusion.

"Yes, it can be used to fill the air," Roland pointed to another square iron plate. "Do you see the small hole above? Air enters the cylinder from this small hole and pushes the piston - helium, the piston is a cylinder diameter A slightly smaller iron plate that moves freely in the cylinder."

Even Anna, in front of so many words, stunned her head. "Then...the cylinders, the pistons, what are you doing?"

“To make a machine that can move automatically.”

The steam engine brought the motive force needed for the first industrial revolution of mankind, completely liberating manpower and animal power.

Its schematic is familiar to every mechanical dog. Simply put, it is an enlarged version of the kettle. The boiled steam is introduced into the cylinder, pushing the piston and the connecting rod to convert thermal energy into mechanical energy.

The principle is extremely simple, but it does not mean it is easy to manufacture. Its difficulty lies in the tightness of the cylinder and the piston, as well as the manufacture of the gas pipe. When metal processing is not enough, it is a fantasy to want to punch a qualified cylinder by hand.

However, Anna's ability perfectly compensates for the lack of craftsmanship.

Roland only needs to design four iron plates of the same size in advance, let the blacksmith shop cast and polish, then use the right angle plate to fix the shape, and then Anna can weld to get the square cylinder with extremely high rigidity. With the help of the witch, he does not have to build a cylindrical barrel and then process a circular cylinder like the traditional production process. The same is true for other large components, which can be made into small pieces and then spliced, so that even a small workshop like a blacksmith shop can work together to make all the parts needed for a steam engine.

In fact, before welding was invented, people could only connect small parts by bolts or riveting, and the inside of the cylinder must be smooth, and conventional connections obviously could not do this.

The only trouble is the gas pipe. Its production method is nothing special, burn a long iron plate to red heat, then put it into the groove mold, hammer it with a hammer and hammer to form, this is also the method of making the front gun barrel . However, the barrel still needs to be straightened afterwards, and the drill line is expanded, which is more complicated.

The trouble is that Roland can't call the blacksmith to his back garden. The witch can't be exposed for a while, and the iron is not his own strength. In desperation, he had to let the chief knight take care of himself and command himself.

After three days of tossing, Roland finally spelled out the first steam engine in the backyard.

"Is this your most powerful thing?" Carter frowned and looked at this strange machine. He first confirmed that this thing had nothing to do with the cult ritual. Every shovel above was fitted by him and looked like a sealed stove. It would be unreasonable if the devil could be attracted to it.

But how do you move a pile of shovel? It looks awkward and has no feet. Is it difficult to fly?

But in the eyes of Roland, this seemingly simple machine exudes the beauty of industry. Standing on the shoulders of the giants, he naturally did not take the Newcomen steam engine - the steam engine - to improve the steam engine route. His first prototype was a high-pressure steam engine with double-link and sliding valves. Its production is no more difficult than the most original steam engine, the key lies in some innovative ideas.

"You will know when you are there."

Roland poured water into the steam room and let Anna ignite the firewood.

Ten minutes later, the water was boiled and the Qianlong curled up. Soon, there was a buzzing sound inside the cylinder, and Roland knew that it was the sound of the cylinder being heated and expanded. The iron plate of the piston is thinner, and the expansion variant is larger than the cylinder, and will eventually firmly adhere to the cylinder wall.

"Isn't this boiling water? I didn't expect it to be a stove," Carter muttered.

When the cylinder was filled with steam, Roland was excited to appear. The piston begins to push the link outward. When moving to the apex, the other link pulls the sliding valve, which in turn pushes the piston inward. The two connecting rods rotate with the wheels one by one, and as the firepower increases, the speed reaches a peak quickly.

The machine made a harsh roar, and the exhaust snoring snorted and sighed with white air, and there was an unstoppable momentum.

"This is what you said... the power hidden in nature?" Anna asked dumbly.

The chief knight was incredibly unbelievable. The last big iron wheel was installed with great effort. Now it is spinning like a feather, standing on the side and even feeling the air flow from the wheel. This can only show that the strength of this shovel is so great that it is amazing.

His heart gradually rose a little uneasy.

His Royal Highness said that it can replace manpower and animal power. If it is not to lie to himself, when it replaces the horse to pull the chariot, it is because of this brute force that only ten knights are hard to resist.

It takes fifteen years to build a qualified iron knight, but it takes only three days to build one. It took only a week to count the time the blacksmith built the parts.

It does not need feeding, is not afraid of cold and hunger, and is not afraid of arrows and swords. As long as the front corner is fitted with a corner, it can slam on the battlefield.

In this way... Is it necessary for the traditional knight to exist?

*******************

In the evening, when Roland returned to the bedroom, he saw the nightingale again.

She didn't wear a hood this time, sitting at the table with a smile on her face, and playing with a few pieces of parchment in her hand. "It seems that the rumor outside is really unbelievable. It is said that the four princes don't learn anything, their character is bad, actually It’s not much more than the court master. This paper is the design of the iron stove? You call it a steam engine, right?”

I am going, can you leave some privacy, if you want to come, you want to leave, you think this is your home! Roland’s heart was awkward, and he still replied with nothing on his face. “It’s a design, but without Anna’s help, it’s just a drawing.”

"What can it do?"

“A lot, mining, drainage, iron smelting, forging, it can play a role in places where great efforts are needed.”

"Then I took it," the nightingale rolled up the parchment and put it in the robes. "There are people who can control the flames in the co-help club."

"Hey--"

She waved her hand and stopped Roland's protest. "Of course, I am not taking your things, you should look at this first." She put a small group of white things on the table.

Roland walked over and pinched it with his fingers and found that it was actually a roll of paper.

He gently unfolded and swept his eyes. "This is..."

"The secret letter used by the pigeons to pass," said the nightingale in a playful tone. "The recipient is your maid, Tyre, hehe, it seems that your harem is not stable."

"I haven't touched her," Roland frowned.

Tyre, the woman in memory seems to have followed her very early. The original four princes were very interested in her, but she could not succeed in several harassment. This time, she went to Bianbu Town and simply promoted her to the maid's head, and she waited for herself. Her room was arranged next door. I did not expect that it was the eyeliner arranged by Wang Xiong and Wang Jie?

Although the letter was not signed, according to the content, in all likelihood, it was from the hands of the brothers and sisters. The letter said that the last failure made the owner very unhappy, and the next time he sang the song to the riots, he would never be allowed to fail again. Ok, in fact, you have already succeeded, he thought, otherwise he would not become Roland Wimbledon.

This letter is unlikely to be forged by the nightingale, because only those who participated in the conspiracy will know the first assassination plan. And if the nightingale wants to kill himself, there is no need to be so troublesome.

"You stolen from her?"

"Your maid is not so stupid. She is going to burn after reading it. Unfortunately, she just happened to be behind her when she saw it," she made a bag-adjusting action. "So, what are you going to do? Need me? Help "handle"? ”

Roland naturally understood what the treatment in her mouth meant. Hesitated for a moment. He finally nodded. "I am bothering you." He really didn't have the confidence to do it himself. "If you can... ask me, behind her." Who is the person?"

"As you wish, Your Highness," the nightingale smiled and bent down. "So, this scroll is a reward."