Amy followed Ella to the cabin with a confused look on her face. Ella said she wanted to give those Aztlans a little Sun Shock, but she couldn't figure out what Ella could do with that piece of sandpaper.
"Your Majesty, what exactly are you planning to bring out? You can't move the trebuchet to cover the ceremony venue with artillery fire, right?"
This is the only plan that Amy can come up with. If the trebuchet's ammunition is replaced by fire bombs, the "flames" falling from the sky can barely be described as "the shock of the sun god" - although this plan has nothing to do with sandpaper.
"Trebuchets? That's a good idea. There are many trebuchets along the coast of Mwara Niga." Ella stopped and thought for a moment, "But trebuchets are not easy to transport. How do we make Tesosomok and Did Osomat agree to set up the trebuchet at the venue in advance?"
"I just said it casually...so what exactly is Your Majesty going to do?"
"Just follow me!"
Ella ran with Amy all the way back to the bottom of the Flying Zealander. After docking on the beach of Mavaranaga, the seaworms on the bottom of the boat had been killed due to being away from the sea water for a long time. After repairing the bottom of the boat, it was now possible to reload cargo.
But I saw Ella rummaging around in a pile of goods, and finally pulled out a copper plate half a person's height.
"What's this?"
Amy took the copper plate from Ella's hand. Although the copper plate was large, it was relatively thin, so it was not difficult to lift it up. She looked left and right at the copper plate, up and down, and she felt that it was just an ordinary copper plate. Judging from the curvature, it was closer to a bowl, but it was too big for a bowl; it could be used as a mirror. , not polished, too rough; there are no decorations, patterns or carvings on it, so it can't even be considered a work of art.
"The ultra-thin version of the shield?"
"This thing is called Yang Sui. It is a magical prop that I read about in ancient documents."
"What is...Yangsui?"
"According to literature, there is a legendary prop in the ancient East. It looks like just a metal plate, but the place it is illuminated will ignite flames." Ella replied, "I tried to reproduce it. But due to some technical reasons, it hasn’t been completed yet, so it’s just what it looks like in front of you.”
Amy looked at the copper plate from left to right again. No matter how you looked at it, it was just an ordinary copper plate. It had no magical incantation or magical power. She raised her head and was about to ask a question, but Ella suddenly blew out the candle, and the room suddenly became dark.
"Amy, can you see the wall behind you now?"
"I can't see it at all! Your Majesty, what are you going to do...?"
After a crash of flints, the candle lit up again
"Can you see it now?"
"Of course... Your Majesty, I just don't see what's special about this copper plate. There's no need for you to test my intelligence like this, right?"
"There is no intelligence test, it's just an experiment for you." Ella said, "Amy, have you ever thought about it? Why can we see the entire wall by lighting the lamp?"
"Of course it's because there's light!"
Ella nodded: "Amy, have you ever looked directly at the sun?"
"Yes...but it's hard to hold on, it's too dazzling."
"Then have you ever thought about it, the sun is so dazzling, why is it not dazzling the walls when it shines?"
"Of course it's because we are not looking directly at the sun!" Amy said anxiously, "Your Majesty, you really suspect that there is something wrong with my head, right?"
"Can't you see the sun if you don't look at it?" Ella smiled, "Then let's go to the deck now, how about I take the mirror to face the sun, and then you look directly into the mirror?"
"No! That would be very dazzling, so... wait a minute."
Amy paused suddenly, and a look of confusion gradually appeared on her face: "Huh? Why is it that the mirror is dazzling when facing the sun, but the wall is not?"
"Are you aware? Amy, you are actually quite smart." Ella said with a smile, "If you think about it again, actually from many angles, a mirror facing the sun will not be dazzling. Only under certain conditions We can only see the dazzling sunlight from the mirror, right?"
"Is...so?"
"Amy, sit down." Ella said, "I'll tell you about the principle of light reflection."
"I don't really want to learn. Your Majesty asked me to look for Ouranos in the sky last time, but I haven't found it yet." Amy complained, "I'll get a headache if I listen to these academic questions for a long time."
"Amy, how can you do this?" Ella sighed, "I set up a staff department for you so that you can correct the mistakes in my battle plan. However, since I will make mistakes in the battle plan, then I will Isn’t it possible to make mistakes academically? I also need someone to correct me.”
"I don't have the confidence to correct your academic mistakes... Your Majesty, how about you explain it simply... I'll try to understand."
"Okay, let's get straight to the conclusion... We can see things because light is reflected on the surface of that thing, causing the light to enter our eyes. And the reflection of light has a fixed angle. The surface of the mirror is very smooth, reflecting the sun's rays in the same direction, so it will be very dazzling at certain angles. But the surface of the wall is very rough, and the light is reflected in all directions, so it is not so dazzling." Ella patiently He explained, "In addition to the reflection of light, there is also the refraction of light. These two points are the basic theories for me to make the Eye of Hermes. Did you know that even the moon reflects the light of the sun? We just saw it.”
"Even the moon? Who came up with this theory?"
"Anaxagra. But the principle of reflection and refraction was discovered by Alice Bedford, that is, me." Ella proudly puffed up her chest, "The surface of the mirror is flat, and the reflected sunlight is already so dazzling. . Then Amy, have you ever thought about using this principle to give the smooth mirror a curved arc so that all the incoming sunlight will be focused to one point after reflection? Then we can fully utilize the power of the sun. ?"
"Use entirely the power of Apollo...magic?"
"It's technology. When I read the records of Yang Sui, I guessed this principle. But in order to collect sunlight, the surface of copper must be a smooth curved surface. It is difficult to polish the curved surface so smoothly with stone, so this thing is It’s always been like this.”
Speaking of this, Ella excitedly took out the sandpaper she took from the mason.
"But now I have this tool! The soft paper can touch every corner of the curved surface. It is also hard enough to polish steel. It is simply a dream tool. It is worth trading for gold! Let's take a look, Amy. As long as this legendary Yang Sui is completed, all the Aztlan people in the ceremony will be surprised!"
(End of chapter)
