In the case of a while, Liu Taifang held a magnifying glass of a crystal rhinoceros and a small flower that cracked.
Hongzhi he saw a laugh and asked the Prince: "You have to ask Mr. Cui to tell you the way? Protect you. "
Cui Wei looked at the tray, and the eyes were slight, and it seems to have a way to speak. The little prince is immersed, and even busy shakes his head: "I can't come here. This is Liu Yi companion claims, I just want to take crystal glasses."
This Liu Yi, how do you meet the things with Mr. Cui? In the early years, I can't protect him when I don't forced him to make a paper; I will not think about my neighborhood in the Donggong; this time is more in the face of the father and Cui, harm him. I have to listen to what is learning ...
I knew that I was coming.
The prince is slightly blamed, no longer uses him to take things, look back at Central Gonggong: "Big accompanied by a few pieces of paper."
The eunuch personally took a jade version of the paper, took the pen ink, , pen washing, putting things with the things, and ink ink to the prince. Two ordinary people around the Prince were young than him, but they didn't have to fall. They didn't grab this set of live children. They can only stand in the back, watching this predecessor.
On the matter of the waiter, how can these two people have passed Wang Duan, Liang Fang, and the ceremony of the Secretary of the Secretary of the Secret Compared with the Gao Gonggong of the Secret?
Zhu Houzhao looked at the figure of high eunuch health, and he was so envious. However, he didn't need a pen, directly passed, took a white paper in the sun, picking up the crystal lens into the paper.
When Cui Wei, I understood what he had to do, immediately stopped: "The Taizi Temple is to take the fire? This article is in the Wood of the Hall, the silk is decorated, it is easy to fight against the fire, not cooperate. Fire, you can get on the courtyard brick. "
The prince has been reversed a lens, and the spotted spot is scattered into a piece, smiled and said: "The alone will not be fired in the palace, but why this mirror takes the way, just moved from this paper , Is, the more it is, the model is very vulnerable to the model, and when you use it, how can you get in such a high place, it can get the daylight into a small point, or up or down, then The aperture is big? "
After Cui, I couldn't help but look at the Prince. He was easy to recall the high school creatures, and I couldn't ask for a student. How did the prince did not ask a biological, actually asked physics?
He only remembered Zhu Houzhao did not like reading and love to fight. I have never heard of this bear child still loves to ponder physical!
The emperor on the jade stepped only a smile, "Mono", Wen said: "Mr. Cui gave the Prince, and I would like to hear what Tianzi in this."
God? What is Tianzhi, a convex lens aggress? Is it a refraction principle of light?
At the end of the high school session, Cui Wei packed the formula theorem in the brain. Now, I also remember the shazedness. He also missed the light through the convex lens, and there is an inverted imaging, but it is necessary to explain it, it is not possible.
He is like a washing machine, but he has no change, and even has a kind of cold stere.
- He doesn't understand, the Prince and the emperor must don't understand. Larger data, draw, column, let the Prince you count, you will count!
Cui Wei's head should be said: "Chen did not dare to know how to understand, just slightly thoughts, if you don't give up with the Prince, the minister said that the sunlight came from this lens."
The sky nodded, he walked to the lecture, took the magnifying glass in the hands of the prince, moved in the air, until a little smaller and bright spot is present on the paper, first give this "focus".
Photonopless to this, can grasp the paper, so the focus is called.
The focus of physics is what he has already can't think of it. Anyway, he has to introduce the word "focus". Otherwise, how to reflex the focus, it will not say it.
The lens can not be a new thing, "focus", the word "focus" is also as the name suggests, and the emperor is not much careful, I hope that he will talk about yin and yang in the depths.
If the Prince is also realized, ask him: "Mr.'s meaning, only happens to lift the crystal mirror so high is the focus, and then some are not, so the paper can't be burned?"
Cui smiled and smiled: "The prince is very. At this time, how long is the center of the paper, we call it the focal length of this crystal. The focal length is also different, please ask the public to take a ruler. "
Gao Gonggong immediately put down the pen and ink, Liu Wei reacted, and said to the Prince: "The slave took Cui Mer people?"
The Prince looked at him, some hesitated, Cui Wei directly turned to the emperor, arched, and the minister also took a candle, two candlesticks, a thick cardboard, please thank the people to help the minister, so good How to watch the crystal mirror is light from the prince. "
The crystal lens naturally doesn't light, how can I use candlelight?
The emperor is also very curious with his son, telling the small inner waiting for the class to take what he wants. When the Prince said that he lectured the principle of light, Cui Wei called him to wait for the test, and then quietly attacked at the table, and recalled the refraction route of the candle into the light. How to paint.
Forget it, you can draw a step.
Anyway, the prince knows that it is not as good as him, first confused in the past. In the future, foreign imports have imported optical books. The Prince learned, thinking of he said is wrong, he will gang praise from the prince, admit that he is a result, it is not necessary?
Cui Wei's mentality is already very late.
Waiting for the servant and experimental appliances, he will first have a unclear focal length, then plug two candlesticks with a candle, one tie magnifying glass, press the scale of the ruler in the focal length. The width paperboard called Xie Wei to help, far away in the other side of the lens, close the doors and windows to create a convex lens imaging experiment.
The most beginning through the lens is just a blurred and scattered light shadow. But when Cui Mobile moves the candles, Xie Wei also moved to the cardboard, in a certain position, the paper jumped out of a clear eye-catching candle.
The Prince "ah", reached out, referred to the candlelight reflection of the center of the paper screen, shocked: "How can it be poured! The crystal film is removed, and the candle shadow of the passenger is not the same as this. Does it? "
The emperor can't help but move down, Gao Gonggong rushed to serve, and did not dare to leave.
The candleflakes on the paper are larger than the real candlelamps, clear as reflected in the mirror. The most distinguished father and son are surprised and interesting, and they all look at Cui, asking him how this candle is like this.
The experiment was successful, and the rest was very folated. Cui Wei smiled calmly, said to the emperor: "This candlelight appears, it is related to the shape of the convex exit in the crystal mirror. Any light is taken out from the focal length of our just said, and it can gather in the mirror So this shadow, let's go out, write down the left and right long, and the minister will give you a premium with the prince of the prince - this long is actually calculated. "
Hongzhi suddenly remembered how he was in front of how to breed the soybean, and he couldn't understand the feelings of the mysterious.
The heart of the emperor mentioned some precautions, and he called him to move, the amount of portable, as for how to count, there is a heart to give the Prince. He is now annoying, no longer in the East Palace, don't ask for everything, just doing a roll.
Hong Zhidi secretly sighed a few times, and he told the two people to teach the Prince. He left the high-eunuch of generation to look at this teaching. Incidentally, arrange it to the two heroes, he went back to the palace first.
The Taizi has no such experience. After sending the father, she still concentrates on the candlestick. She also tried to push the candlestick, rush to the paper board, watch the paper screen once again show clear candle shadows ...
He also didn't care too much. Every time the candle, Cui Wei will record a string of raw and chaotic numbers.
Until the candle shadows on the cardboard almost invisible, the Prince was full, and forgot that he was originally wanted to take what topic toss Cui.
Mr. Cui is really a master, and the geother is so fun. He is also willing!
The Prince cleared the throat, I want to ask someone to send this set of things back to the East Palace, and reward some things to Cui teacher and thank you. However, Cui Wei blows out of the candle, and the people will open the doors and windows, and smile towards him: "The Hall will ask the treasure of the lens in this lens, and the minister is willing to say it for the Hall."
Oh ... The Prince is busy and said, respectfully: "Please explain it."
Mr. Cui took a white paper, with the ink that I just agited, and gently painted a standard convex lens.
When I first met, I saw the geometric teacher from the freezing circle. They helped students feel very powerful, and now they are in their own drawing, they know that "no him, but ripe rook".
Drawing so many years of embroidery, now he can't only draw arcs, you can draw straight. The main optical axis of the screen is passed from the edge of the lens, the row passed through the row, and the strips are straight as a smaller brush than the interface.
He painted a 1:10 scale, the focal length, the twice focus point on the optical axis, and then took two data just out, and painted the imaging principle on the picture.
Zhu Hou looked at the dense linen line and number, I don't know why, my heart has given a little shadow.
However, Mr. Cui and Yan Yue are very simple. His people have seen the phenomenon of their own eyes - the candlelight can reflect the reflection at the other side of the lens, and its position is far from the lens, the position of the reflection The closer the lens, the smaller the image.
The little prince has nodded, I feel that I have fully understood the truth, but turned around to look at the distance between the lens and candles, and suddenly remembered something: "If this candle is in the focal length, why can't you imaging? ? "
Mr. Cui put the candles and the lens, and called him to see a magnified candle through the mirror - the cappth is visible, and the wax blind in the candle is visible.
The Prince suddenly realized that it was a horrified.
The principle of this virtual image Cui Wei didn't want to talk, and it was not very much. He has a good tradition of "point to one sentence, let himself self-evolution", and smiles, "" We are a first quotule, doing the candles directly outside the experiment, easy to see candles Body. If you change your own lens, you don't know where the focal length is, you can also use the image size to push it out ... "
He extends out the line of the main optical axis and the edge of the lens, gathered to a point, and then as a vertex of the candle, draw a brick candle.
"Only consumes the number of wagles, the distance of the candle, the flame of the candle, the flame is shorter, and it can calculate its focus."
He has a few questions, and faces the prince drawing, the column calculation. Painting painted a concave lens that painted a refractive principle of a concave lens on the same optical axis.
After the picture, he looked at the direction of the folding line, and suddenly the eyes were bright -
No wonder that the microscope that is called the trial is a few times more than the ordinary magnifying glass. How can this telescope can't get good, it is rare to see it clearly, and the image it is inverted. It turned out that he wanted the wrong eye in the beginning!
Not two lens, is a convex lens, a concave lens!
With a telescope, the nine-sided municipality will find the enemy earlier, early care; in the future, the Daming water teacher can set a lookout on the mast, see if there is a pirate ship or Island, reef!
He was excited to have a slight fluctuation, almost forgot to teach the child. Fortunately, the Prince saw that these numbers were also dizzy. He said that he said with him: "I haven't learned the arithmetic, some can't make this, how did the Mr. Cui don't have to have a long string? of?"
It is called the prince to ask, Cui is coming back to God, watching the numbers on paper.
He also learned "nine chapters of arithmetic" in Guizhiji, most of the four arithmetic methods of elementary school, and did not teach the prince into mathematicians. What's more, the prince doesn't need to be a mathematician, as long as it is a bit interest in the collation, it will accept the modern science from foreign countries, others have enough to help him understand enough.
Thinking of this, Cui Wei became gentle, taught Xiao Prince who did not pass the secret: "The Hall is surrounded by the rope with the line, and then take the measure amount, don't you know how long? If you want to know How big is the corner of this slash and optical axis, and it can also divide the Sunday into three hundred and sixty degrees. It is a semi-circular angle that it will come. Or further, call the slope of this line ...... "
You don't have to follow the prince, call Xiao Huangmen, in advance, record the number, the Prince wants to count, do you know the digital table? Even if you don't have to be your own, as long as you think of thinking, the person who is calculated will ask.
If you can't think of, Mr. Cui is actually such a Mr. Cui!
The prince surprised, finally understood why the two countries were punished by Mr. Cui, now mentioned him to say his benefits.
If other sir can also make him don't have a book, I will find someone else!
The Prince is full of excitement, and Mr. Cui suddenly asked him: "The two people around the Hall are in the inside of the book. They are only a person who trusted trust in the temple. It may ask them to learn."
Gao Feng is the pedestrian book, Hanlin disciple, Liu Wei is not. He is from the low-level eunuch, can only say some words, read the two books, four books five times, do not understand, arithmetic is more unhappy.
Zhuli Prince only thinks that Liu Wei is post, it will take the waiter, and it is not too difficult to study. Cai Cui, such a question, he realized that Liu Wei won't, the thoughtful man is not as good as the high public fatherner, and he can't help his studies, actually a belt not going out.
The high eunuch saw a bit of the prince, and the stickers said: "Xiaoye intends to study the way, there should be a few people who will read the inside to accompany the servant. Slave, I will tell the emperor, good to the emperor, The Niangniang gave the young master to pick a few arithmetic good times. "