Release that Witch

Gray Fort, no winter city.

Since the news of the ceremony of the throne, Roland has handed over all the preparations to Barov, and the latter is also very special, not only busy every day, but also the ceremonial officials of the old king. Ms. Lan Qi invited no winter, apparently not willing to show a trace of flaws.

As for himself, in addition to occasionally going to check the shooting progress of the Shadows, the rest of the time was put into the final setting of the internal combustion engine.

Because there are certain errors in the weights and measures of the two worlds, the prototypes need to pass the stability test, and the oils that are fractionated are uneven. Design redundancy is also a consideration, in the absence of immersive calculation methods. He can only use physical objects for debugging.

Manufacturing experiment scrapping improvements and repeating, Roland seems to have returned to the campus era, running around the castle and the northern slopes of the mountain every day, living a busy and full of research life, those knowledge that has not been touched for a long time, in this half a month It has become clear again.

Of course, there was no Anna companion at that time.

What's even better is that her enthusiasm for new things is no less than her own.

Whenever she saw her focusing on assembling the precision parts and the scent of the sweat on the tip of her nose, Roland couldn’t help but feel that her desire for creativity and knowledge seemed to be born. Like her flame, it is hot and pure.

This inner spirit surpasses the scope that the appearance can describe, and it never gets tired of it at any time.

Whenever a decisive progress is made, Anna's smile can almost use everything to describe him and even feel that the joy of creation is far more than a queen.

She has never concealed her own ideas, as long as they can stay together, she is not too concerned about the name.

Of course, Roland also knows that sometimes the name is not for the show, but for everyone to see.

As long as human beings are still social animals, this cannot be avoided.

After marking a series of revised dimensions on the drawing, he put down the quill and licked some numb neck.

If there is no accident, the design drawings in front of it are likely to be finalized. After all, the previous batches of prototypes have been running stably for several days, and the accumulated working hours have been able to meet the current usage requirements.

As a second-generation power source, the principle of an internal combustion engine is not complicated and can be regarded as an evolutionary version of a steam engine. The first generation of power source is driven by steam to push the piston. No matter how cleverly designed, the energy loss caused by steam transportation cannot be avoided. Therefore, people naturally think that putting this force directly into the cylinder will inevitably greatly improve work efficiency. The internal combustion engine was born.

The oil is mixed with air and injected into the cylinder to cause it to burn violently. The expanded airflow will push the piston to run, and the new fuel is sucked into the cylinder. It sounds simple, but it is a huge project. For example, the steam engine has a relatively low sealing requirement. The gap between the piston and the cylinder of the early product can even be inserted into a finger. Both felt and linen can be used for caulking, but it is obviously not feasible to change to an internal combustion engine.

It is not powered by the outside like a steam engine. Every cycle of the piston needs to be done by itself. Therefore, if the seal is not tight, the cylinder will be out of flame and will stop.

In other words, this simple principle can only be turned into reality when material levels and processing techniques reach a certain level. It is precisely because of this that the birth time of the first internal combustion engine in history was actually several decades later than the electric motor.

Roland's first-generation internal combustion engine solution has two directions, one is cylinder in-line and the other is cylinder ring. The former is stupid, black and thick, and cast iron is built. How to make it steady, and strive to put it into the factory for large-scale production. The latter, also known as the star engine, can be made very compact due to its short crankshaft and compact structure, making it ideal for spacecraft applications. It is much more refined than the former as a whole, and the material is aluminum alloy, which can only be processed by Anna for the time being.

The reason why Roland dared to develop two sets of products during the research and development stage was to stand on the shoulders of the predecessors. For these two tried and tested works, a lot of information can be found in the dream world, and the starting point is much higher than the steam engine that has been replaced four times.

Coupled with the information revealed by the high-level devil, he also had to speed up.

On the ground alone, it is difficult to make dripping water in the face of a large number of threats from the sky. This expedition has already proved this point.

If the plan can be achieved, human beings will be qualified for the first time in the air with the enemy.

"Kneeling, don't move."

The nightingale suddenly opened.

Roland immediately paused and his eyes were aimed backwards.

Is there an enemy?

Then he saw the nightingale coming over and reached over his head, then a slight pain, she put a strand of hair in front of him.

"Hey, is this white hair?" Roland was a little crying and laughing.

Although the gray hair color itself is very shallow, but these hairs are indeed somewhat white, almost lost luster from the roots.

"There is still," the nightingale fumbled for a while. "Have you been resting too little recently?"

"Have it?"

"You used to sleep late in the winter. I have been getting up earlier than me and going to the world of dreams at night. Isn't that really asleep?" She screamed, "The yawning from time to time is proof of fatigue, you still When I was not thirty, I had white hair. How can I do this?"

Looking at each other's seemingly admirable appearance, Roland couldn't help but feel a lot lighter, and even the fatigue of working with it faded a bit. She did not suffer too much influence. It seems that the agreement really played a vital role.

"Reassure, this is far from the limit. I have already experienced this."

"..." Nightingale questioned, but apparently she could tell that this was not a lie.

Because he really didn't lie, "In general, there will be a long period of palpitations, just like the chest is particularly empty; then I feel that I can't lift my body, so I have to be careful. If it is strong If you do, you will cough and stop, even coughing and coughing your blood."

Halfway through, he suddenly coughed up.

"Hey, are you okay?" The nightingale suddenly showed a nervous look and patted him on the back. "Do you need me to call Nana?"

Roland took a deep breath. "No...nothing, I just got caught in the saliva."

"Really?"

"Do not worry, I"

He turned his head and couldn't help but stab each other's distance almost to be close together. Under the four eyes, the two couldn't help but hold their breath.

"Your Majesty," At this moment, the office door was pushed open and Wendy came in. "I have one thing to...well? What are you doing?"

"I?" Roland blinked, only to find that there was no one in front of him, and he kept a half-back posture, even if you don't need to know it, it must be quite weird.

"I am practicing gymnastics under my arm," I don’t know when I was lying next to the coffee table. I was chewing on the dried fish. "It’s so easy to sit on the stomach for a long time. He just can try the effect first. ""

"It turns out," Wendy thought. "Is this the gymnastics that you mentioned before, is it going to be promoted in the college? But... Is it really effective to make it like this?"

"Oh, let's go," Roland regained his posture. I don't know why. He always felt that the innocent nightingale was trying to hold back and laugh. "Yes, what do you want to say?"

"This is the case, Your Majesty," Wendy opened the record book in her hand. "According to the records of the previous year, today should be the adult day of lightning."