Life is inseparable from physics, and there are physical reasons behind all life phenomena. A sieve looks simple, but when you think about it, it's not. I've seen many times before. However, I never felt any difference. When I started studying physics, I couldn't help but think. So, one problem after another appeared in my brain. After thinking about it, I realized that there are many aspects to the problem. The simpler something is, the more complex it can be. One of them is: How does a sieve sift things out? Actually, I have the answer to this question. However, we are here for a seminar. So, I'll not talk about it for now. So, the three of you, let's talk about it first.

It is very cloudy, and the small quality will be sieved out. Because the mass with the mass occupies more space, while the mass with the lower mass occupies less space. The large mass is constantly squeezing the small mass, which causes the small mass to go out of the sieve.

Duenias, if you throw a straw in, will the straw be sifted out? No, you can't. Because only the downward one is the sieve, and the upward one is the dustpan. The straw is light, but it can't be sifted out. So, the small mass is not the reason why things are sifted out. The correlation between the size of the space and the shape of the object is an important factor in determining how to sift things out. When the shape of an object intersects a space exactly, it cannot be sifted out. The straw intersects with the space part. When there is only a straw in the sieve, the straw will be sifted out. However, the probability is very small.

Margarita, who said that the upward is not a sieve? It's all a sieve anyway, so why not? I know you'd say that the downward ones are more effective and don't let the ones we want to keep be sifted out. You say that the small quality is not the reason, I admit it. However, it also has to do with it. It should be said that the density is small. In the movement accumulation, the less dense ones are gradually lifted to the top. If you continue to shake the sieve at this time, the less dense ones will be sifted out.

The six sons of the wind are coming, no. What if I drop a nail into it? Yes, the reason for the small quality is really unreasonable. I think there's some truth to what Margarita said. When an object can be completely contained by a space, it will be sifted out, regardless of its mass, density, or whatever.

You're ignoring the two most important factors: location and the number of exercises. The bottom is the easiest to sieve out, and the closer to the center it is, the harder it is. Without enough movements, it is impossible for those in the center to be sifted out.

In fact, sieving is a complex movement process. There are a variety of circumstances and changes involved. No single factor can explain the principle of sieve. Another is the brittleness of the things being sifted. If the thing being sieved is very brittle, it will crack and split. In the end, it is inevitable to be screened out. Of course, the sieve in life is not so complicated. I mainly think about physical mechanics, and I don't study the phenomenon entirely based on the sieve of life.

Sieves involve knowledge of elastic mechanics, motion accumulation, and compressive strength of materials. To dig deeper, you need to have a super comprehensive body of knowledge about physics. In the future, we may revisit or continue this topic. In short, life is endless, and exploration is endless.

Well, that's pretty much it for today. If you have anything on this topic, just let me know. Maybe I'll bring up a topic based on that in the next discussion. ……。