Be a matchmaker in an otome game

Chapter 302 Improved Trebuchet

Felicia finally lived in the manor. It was her decision after consideration. It was only three days. If she could make Blake feel at ease, why not.

Olivia arranged for a carriage to deliver Felisa's necessities and let Felisa live in her room.

"That's not good," Felisa declined, "Just arrange another room for me."

"The other rooms are not good," Olivia said forcefully, "I am my sister, and I want to give you the best."

Hearing this, Felisa accepted her kindness.

"Speaking of which," Felisa asked, remembering Black's gaffe, "Uncle seems to attach great importance to this press conference."

Mentioning this, Olivia couldn't help but feel a little depressed: "Because many people think that mother's investment in father is a waste, so mother also bears a lot of pressure. Although father doesn't care much about other people's evaluation, but After all, I am worried about my mother."

Felisa was surprised. She originally thought that Blake was the kind of person who kept his ears to the outside world and only did research, but he actually knew about Viscount Cliff's situation?
"I understand," Felisa nodded, "I will do my best."

Originally, she was just thinking about these three days of perfunctory. She had only seen trebuchets in film and television dramas in her previous life, but she also knew that trebuchets in film and television dramas were all products of artistic processing. easy to say.

However, no matter how you say it, her vision is wider than that of people in this world.

However, after all, she underestimated the enthusiasm and perseverance of the researchers headed by Black. That night, she made a spoon-shaped trebuchet. Throw seven or eight meters.

Blake asked Felisa how to improve it. The projection distance of 100 meters must not meet expectations. It must be at least [-] meters, and the stone must be heavier.

Blake asked Felisa how to improve.

Felisa was at a loss: How could she know? Her poor physics knowledge is just superficial, and she doesn't remember anything deeper.

So she pondered for a long time, and could only tentatively say: "Well, lengthen the length?"

The moment arm of this simple trebuchet is one meter long, and the long and short axes are divided by a ratio of three to seven. A basket is placed at the end of the long axis to place stones, but due to the size of the basket, the size of the stones is also determined. limit.Since the force arm is only one meter long, the height of the short axis is not high, about [-] centimeters high. When throwing stones, step on the long axis to throw the stone.

Seeing that she was really ignorant, Blake understood. I'm afraid he misunderstood the wrong person. Felisa might have accidentally learned about the "leverage principle" from somewhere, and then taught them, but she only knew one lever principle. I don't understand anything.

Black didn't anger Felisa because of this. In his opinion, being able to propose the principle of leverage is already a great help. If they are allowed to think for themselves, I don't know how long it will take them to think of this.

Black left her to discuss with his colleagues.

Felisa, who was listening to their speech, also regretted it. Why didn't she study science and engineering at the beginning, otherwise she would be more or less useful at this time.

Finally, they came to a conclusion: instead of lengthening the length first, they still use a one-meter-long moment arm, and make two trebuchets with a ratio of [-] and [-], respectively, and compare the three trebuchets to see which one can throw better. Far.

The three-to-seven ratio is called the experimental group, and the two-to-eight ratio and the forty-six ratio are called the control group [-] and the control group [-], respectively.

Although I would like to say that these three can be called the experimental group, as long as they are happy.

Felisa was already drowsy, seeing that no one was paying attention to her, she calmly went back to her room to get ready for bed.

Although I was lying on the bed, I couldn't fall asleep for some reason, and my thoughts kept turning to the researchers who were still working.

The guilt of not being able to do anything weighed on her heart, making her toss and turn, and she couldn't help but want to get up and watch the others work on the catapult.

Felisa didn't sleep well because her heart was not peaceful, she woke up very early, after waking up, she washed up and went downstairs to check on their research.

The research atmosphere is still in full swing, but it seems that there are fewer people, and they are probably going to rest, after all, the body can't support it if it has been researching non-stop.

Felisa stood aside quietly, then noticed something.

The force arm of the new trebuchet is still one meter, and the ratio is nine to one, nine on the long axis and one on the short axis. The throwing distance is indeed farther.

"Change, change!" She heard someone shout out panting, "I can't do it!"

Felisa looked over, and saw the thin researcher propping his hands on his knees, out of breath, looking like he was about to fall to the ground at any moment.

He should have been depressing the pedal constantly.

If you want to throw the trebuchet farther, one person's strength is limited, but it is not convenient if multiple people press the pedals. It would be great if there is a fixed force to press the pedals.

It’s not good to press the pedals. It’s okay to press once or twice. If you press too much, it will definitely damage the pedals. Felisa draws a force analysis diagram on the paper. The short axis will be subjected to a downward force. This Force can come from compression, but it can also come from tension.

That's right...weights.

Felisa's eyes lit up, she found Blake, and put forward her idea: "Hang a heavy object on the side of the short axis, put a stone on the other end of the long axis when pulling it up, let go after putting it down, and throw the stone naturally out."

Black pondered: "But if you do this, you need to build a high platform, so that it is convenient to pull up the short axis."

Felisa turned her head and looked at the trebuchet: "Why not make a pulley?"

Blake asked, "What's a pulley?"

She still has an impression of the pulley she learned in junior high school, and the pulley has been widely used in her previous life, which can be said to be common sense, so she will never forget it even if she wants to.

This world doesn't even have pulleys, which shows the backwardness of technology.

It can’t be said that there is no such thing. After all, there is an operation of throwing a rope in the air, making it pass through a horizontal bar, and then standing on the ground and pulling the rope to lift the heavy object up, but no one has studied why. They all thought it was obvious.

Felisa drew a picture. The purpose of fixing the pulley is to change the direction of the force. Even if it is a weight of several hundred kilograms, ten people can pull the rope together.Moreover, when the pedal is pressed down, the force is prone to unevenness, but it is different when the rope is released. Pressing the pedal is a continuous process, but releasing the rope is an instantaneous action. Compared with putting the rope, it is definitely easier.

Blake found a treasure, and based on Felisa's stick figure, he drew a design drawing and added many details, such as adding the stable structure of the support, marking the rope material and so on.

(End of this chapter)