Chapter 783 Time-Freezing Mage Qubing (Part 2)
After the gunpowder was developed, the next step was the mechanical processing of the projectile. However, because it was a brand new thing, all the materials, production tools, and experimental equipment had to be newly prepared. This could only be done by notifying Xingang County, so Qubing was temporarily idle at the Lake Island Research Institute.
However, he was not doing nothing. Now that he had finally come to such a place, he could get in touch with many things that he could not understand at school. Of course, it was time to broaden his horizons and learn.
After sending someone to send out the list of required equipment and materials that day, he followed Ao Fei to the optical lens research group to learn the optical theory they had summarized, and also to learn about the principles of telescopes. Most of
the optical laboratories here were dark darkrooms. Even if there were windows, they were all light-shielding windows made of solid wood boards. They were usually supported by wooden sticks and temporarily modified according to the situation when doing experiments.
At this time, Qubing was staying in a darkroom with Ao Fei. The two of them were huddled in front of the window. The light-shielding window made of solid wood boards had been closed, and a small hole was opened on it to let in light.
Ao Fei placed a prism-shaped glass block in front of the beam of light that shone into the house, and placed a piece of white-painted iron sheet behind it as a light display board. He pointed to the seven-color spectrum on it and said to Qu Bing.
"See, this is the sunlight we see every day. Most people think that sunlight is white, but after our experiments, we can use a prism to separate the components of sunlight, and then it becomes the spectrum you see now. Isn't it very similar to the rainbow that appears in the sky after rain? In fact, it is the same principle."
"That's not right. There can't be a prism in the sky after rain, right?" Qu Bing asked doubtfully.
"But have you ever thought about why rainbows only appear after rain, and why there are no rainbows on sunny days? What is the difference between the two?" Ao Fei asked suggestively.
However, Qu Bing had been led into a ditch by the prism, and he could not think of any relationship between these two types of weather and rainbows.
Seeing that he couldn't figure it out, Ao Fei had to explain, "The difference is that the air is relatively dry on sunny days, and the air is very humid when it has just rained. There is a lot of water floating in the air, and these tiny water droplets become irregular lenses, which eventually decompose the sunlight into the rainbow we see."
Qubing heard him say this and was about to refute when he heard Ao Fei interrupted, "You must be thinking that this is just my hypothesis and it can't prove that it must be like this, right? Yes, this is a hypothesis, because we can't do this kind of experiment now, so we can only define it with a hypothesis, and this is also a statement that the leader agrees with.
And this is the process of our research. We keep proposing new hypotheses, and then find ways to verify our hypotheses. If there is no way, we can only use the most reasonable hypothesis to define it for the time being."
"Then what are you researching recently, senior brother? This should be your achievement a long time ago, right?" Qubing also agreed with this method, so he didn't dwell on it and simply asked about other optical knowledge.
"We have recently been studying a strange phenomenon of light propagation, called pinhole reflection. When light passes through a small hole, it will form an upside-down shadow. However, when light propagates in the same substance, its propagation trajectory will never change as a straight line. We don't know why after passing through a small hole, the original scene becomes an upside-down reflection." Ao Fei scratched his hair in worry. They have not yet figured out the principle of this phenomenon.
"There is such a thing?! Haven't you asked the leader?" Qu Bing opened his mouth in surprise. The same light, after passing through a small hole, turned upside down? What is the principle behind this?
"No, the leader has been in the south for more than half a year. Since he came back, his mind has been on the Power Research Institute. He hasn't been here for a long time. Besides, for things like this, if you don't let the leader see it in person, it's hard to explain it by just writing." Ao Fei said with a strong sour tone.
Qubing pretended not to hear what was said, and then asked expectantly, "Brother, can you let me see what the reflection of that small hole looks like?"
"How difficult is that? Look, isn't there a small hole on this window? The sunlight outside shines the scene in and then reflects it on this board. Look, isn't this the tree outside, and the hexagonal pavilion, and the stone table and stone bench below, all upside down?"
Ao Fei agreed and moved the prism in the middle aside. The beam of sunlight coming in from the window shone directly on the presentation board, leaving a circular picture on it. It was the hexagonal pavilion and trees outside the window. And just as Ao Fei said, the images that appeared on the board were all upside down, with the sharp corner of the pavilion at the bottom and the stone table and stone bench on the top.
Qubing immediately found it very interesting. It was the first time he had seen such a magical phenomenon. Looking at the lifelike 'inverted painting' in front of him, Qubing couldn't help but sigh, "It would be great if this painting could remain on the board forever."
Unexpectedly, his casual sigh aroused great resonance in Ao Fei, as if he had finally met a soulmate.
With a snap, Ao Fei slapped his thigh excitedly, and then said excitedly, "The one who knows me is Qu Bing. I think so too. Since I discovered this strange phenomenon, I have been thinking about whether there is any way to keep the scene. If it can be kept, it doesn't matter if it is upside down. We can just turn it right when we see it."
Qu Bing was shocked by his sudden reaction and didn't understand why this senior brother was so excited. However, before he could figure it out, Ao Fei pulled his arm.
"Come on, senior brother will show you a big treasure."
"What treasure?" Qu Bing was still confused.
"Don't worry about it, just come over."
Ao Fei said as he blocked the only small hole in the window. The room suddenly became dark. Fortunately, he immediately lit two calcium carbide lamps, and the room was bright again.
Then Ao Fei placed a wooden tripod in the corner in the middle and propped it up. He also placed a rectangular wooden box on it. One side of the wooden box had a small round hole with a magnifying glass on it, and the other side had a frosted glass that could move back and forth.
Ao Fei pulled Qu Bing behind the box and said, "Just stand here and don't move. Just look at this piece of glass."
Qu Bing was pulled over by him with a confused look on his face, and then he saw that the frosted glass actually had the scene of the half room in front of him. These scenes were actually reflected on the frosted glass, just like the upside-down reflection he saw in the window just now.
"Brother, what are you doing?" Qu Bing asked in confusion.
"Don't worry about it."
Ao Fei said without turning his head, and continued to busy himself. He placed a chair against the wall in front of the wooden box, and then took two wooden brackets and placed them in front of the left and right sides of the chair, and hung the two calcium carbide lamps that had just been lit on them, and then hung two pieces of silver-shining tinplate on both sides of the chair to reflect light.
After preparing all this, he heaved a sigh of relief, sat down on the chair, and then looked at the magnifying glass on the wooden box in front of him and said, "Qubing, look at the frosted glass, is the shadow of Senior Brother appearing on it?"
"Ah, it's true, this is too magical! It can actually shrink a person and put him on the glass, but it's a bit hard to see the whole picture." Qubing stood on the other side of the box, looking at the glass on it and said.
"The support of the glass can be moved back and forth, try moving it back and forth, and you can also enlarge and reduce the human figure." Ao Fei continued to remind him. Qubing
moved the glass as he was told, and indeed he could adjust the size of the human figure by moving it back and forth, and he immediately jumped up excitedly.
"Brother, have you figured out a way to keep this kind of inverted painting forever? If so, wouldn't it be possible to leave a picture for people, and it's the same picture, which is many times better than a portrait."
When Ao Fei heard Qu Bing ask this, he immediately leaned back and slumped in his chair, saying with despair, "Oh, if I had a way, if this technology could be developed, I would definitely leave my name in the history of our Han tribe. What a pity, what a pity, brother, I still can't think of a way."
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(End of this chapter)
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