Mizukawa took a chopstick and broke it easily. Then I brought another pair of chopsticks, but I couldn't break them. He brought another orange and began to peel it. He was very attentive, so the skin was complete. Next, he looked at the three of them: What do you see? Forget it, I'm not going to beat around the bush. This is actually the result of the transfer of force. So, how did you analyze it?

Margarita immediately said: Because there is also a force between the chopsticks, but the force between them is of different sizes. Although the chopsticks closest to the surface provide little support, the other chopsticks share different pressures. Due to the quantity, the pressure you put on the chopsticks is completely dispersed. The reason why orange peel is easy to peel is because the peel is not sticky to the orange pulp and the peel is less hard. Although you only want to start with one point at first, the force transmission causes a large piece of skin to be peeled away. Therefore, in practice, it does not take much effort to peel the skin.

I guess it is created by the force acting between the parts and the parts, which is essentially a synthesis of forces. Why are chopsticks the same size, but the force between them is not the same? I guess the reason for this is gravity. The weight of the chopsticks may be small, but it should not be ignored. In addition, the arrangement of chopsticks causes the pressure and support to be very different. All in all, force transmission has a multifaceted effect.

When the six sons came to see Dueñas and did not speak, they began to speak: I think everyone has seen the appearance of the wood when it is broken, and there are many wooden thorns of different lengths on the broken surface. What does this mean? The force transmission is not at all what we think, but three-dimensional.

Why is it that the fracture surface of the object is bent after it is broken, instead of being regularly round? Perhaps the object started out as an irregular shape, but later became relatively regular. However, once it is subjected to external force, it will become the original irregular state. I guess that glass and wood actually have memories, and this memory is irregular memory. This memory is primitive, and every object has it. I think it's likely that the force transfer is that the object is not as regular on the inside as it is on the outside, so there is strength and weakness when dealing with force. The internal and external inconsistencies are the reason for the formation of irregular memories, and they are also the essence of force transmission.

"Actually, it's about stress," Duenas said. The shear stress of chopsticks is large, while the compressive stress is small. Why is the compressive stress small? Because the arm is long, and the arm is inversely proportional to the compressive stress. Therefore, this is the reason for the low compressive stress. Conversely, the shear stress is large because the arm is short. I think the essence of the transmission of force is that there are many directions of stress in an object, and the stresses are different. Chopsticks, although solid, are not rigid bodies. It will also be shaped and deformed when it is subjected to external forces. When deformation occurs, various stresses come into play. This is when the force is transferred.

The deformation is very small until the yield strength is reached. After that, the deformation is macroscopic. At this moment, the peak of the formal force transfer. Of course, it was also a short end. I think that even though the object broke, the force was transferred. It's just that the effect is not so obvious.

Mizukawa looked at the fracture surface of the chopsticks: Why is the fracture surface so complicated? What causes this? Wouldn't it be supposed to be a simpler shape, in my opinion? Fracture surfaces are mathematically complex and require extremely demanding conditions. So, why?

I think that a law requires energy, and that the formation of an irregular polygon requires more energy than a circle. I don't think there is any pattern to everything in the beginning. As the amount of energy absorbed increases, it gradually begins to have some patterns. I've read a novel called "The Illogical World", which is supposed to describe the original appearance of the universe!

In order to have a good idea, everyone went back and rested. As always, we'll be here tomorrow.