Science class, those things

Speaking of science, that is my favorite class. In today's science class, many things have happened, mainly because Teacher Chen has raised many questions. One of the questions made me very impressed. How to say it, it makes me both happy and sad.

What is the problem that makes me feel this way? It is also strange to say that this is a very simple question - why re-adjust the fine focus spiral when changing the low magnification objective to the high magnification objective. The dear brother who has not seen the microscope must be a fog! However, don't worry. In order to facilitate the correction of Teacher Tan, I will explain here: the so-called objective lens is to enlarge the object to be observed in the microscope; the so-called fine quasi-focus spiral is the thing that makes the image clearer after the rough quasi-coil spiral finds the image, and The high power objective is longer than the low magnification objective. After the explanation is over, it is time to talk about our reaction at the time.

At the time, our entire class was silent. In fact, my heart is secretly thinking: "This is not simple, because the high magnification objective lens is longer than the low magnification objective lens, so it has to be re-adjusted." I think so, but I still don't say it. WHY? You said that the whole class was silent, and I suddenly came up with a sentence. If I said it right, I would forget it. If it is wrong, isn’t it awkward?

"I don't know? It's very simple, don't think too complicated." Teacher Chen saw us for a long time and couldn't think of an answer, so remind us. In this way, I am more convinced of my own answer, and my answer is very logical and generally correct.

"Say it." The same table reminded me. I shook my head and said that I still don't want to say...

"Forget it, let me announce the answer! It is because of the relationship between the high power mirror and the low power mirror, so we have to re-adjust the fine focus screw." Teacher Chen said.

The same table looked at me in amazement, because the answer I thought was the same as what Mr. Chen thought.

"Oh! If at the time..." I thought like this, "All the time has passed, let's work hard next time!"

Although this thing makes me laugh and cry, but I still have some experience, it is not a harvest...

First day: Zhou Jiale