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- ??On the Star Observation Tower at Yuhuatai.
Zhao Hao placed another chopstick in the half-full crystal cup, letting the two students understand that light can be refracted.
¡°Knowing that light can be refracted and reflected, we can do a lot of things.¡±
Zhao Hao said as he took out a convex lens specially made by the mirror grinder.
"Is this a …¥…¦?" Hua Shuyang really knew his stuff. He pointed at the thing and said, "My dad now relies on this thing to read. It can enlarge the characters, but it doesn't seem to be so thick."
"The principle is the same." Zhao Hao said, pointing the magnifying glass at the sun, and then asked Wang Wuyang to hold a piece of rice paper and stand opposite.
Zhao Hao adjusted the angle to let the sunlight pass through the lens, forming a dazzling white spot on the paper.
After a while, the rice paper started to smoke.
Zhao Hao raised his hand and moved the focus away. The fire did not burn up, leaving only a black spot on the rice paper.
The two disciples made a fuss again: "It's so convenient to light a fire like this!"
"I didn't expect that Kuiji could have such a wonderful effect!"
"Master, what is this?" Eryang asked again in unison.
"It's just concentrating light through refraction." Zhao Hao, as if he was talking about a trivial matter, put away the magnifying glass and said: "The heat of the sun is also concentrated on one point, and the temperature continues to rise until it reaches the point. Covered with rice paper."
"Why is the magic of optics so great?" Zhao Hao said, and took out the hairpin brass tube carefully made by blacksmith Gao.
He first pointed to the lenses embedded at both ends and introduced to Eryang: "This large one is the objective lens, which uses a convex lens similar to reading glasses. The other small one is the eyepiece, which uses a concave lens similar to reading glasses."
With that said, he handed the copper pipe to the two of them and said, "Put your eyes on the end of the eyepiece and see what's going on outside."
Wang Wuyang first picked up the copper tube and put his right eye on the eyepiece, and then Zhao Hao guided him to point the objective lens out of the window.
The window is facing Jinling City.
"ah!"
When Wang Wuyang saw it, he screamed and suddenly looked away.
If Zhao Hao hadn't been prepared, he would have thrown the copper pipe to the ground.
"How could this happen?" Wang Wuyang looked pale and pointed out the window and shouted: "The treasure gathering gate just ran towards me!"
After saying that, he rubbed his eyes, took a closer look, and couldn't help but wonder: "Hey, isn't this still there?"
"Let me see, let me see!" Hua Shuyang was already more curious about natural science than Wang Wuyang. He pushed his senior brother aside, and then followed suit, using a copper pipe to look out.
"Wow, Jubaomen really came to us!"
With Wang Wuyang's foreshadowing, Hua Shuyang was not frightened. He just kept exclaiming: "Not only Jubao Gate, Phoenix Terrace and Changganli are now in front of us. Ah, I even have cargo ships on the Yangtze River, You can see everything clearly. Hey, that man is peeing in the river"
"Let me take a look again!" Wang Wuyang felt itchy after hearing this, and he and Hua Shuyang started fighting over each other.
"Aren't you scared now?" Zhao Hao joked from the side: "What will you do if the Treasure Collection Gate hits you in the face?"
"Master, this is the first time I've seen this. I was scared." Wang Wuyang looked greedily at the scenery that was getting closer from far away, and said with a smile: Now that I think about it, it must be the two mirrors in this tube that illuminate the scenery in the distance. The scene zoomed in closer. "
"Yes, it must be using the refraction of light!" Hua Shuyang picked up the prism, deflected the light to the wall and said, "Optics is indeed magical!"
Zhao Hao nodded happily. The scholar-bureaucrats of the Ming Dynasty were indeed as legendary as they were, eager to learn, enlightened, and good at accepting new things.
But thinking about it, this is normal, because just a few decades later, with the introduction of Western science by missionaries such as Matteo Ricci, the scholar-officials of the Ming Dynasty immediately became enthusiastic about Western learning. Countless scholar-officials such as Xu Guangqi, Li Zhizao, Fang Yizhi, Mei Wending, and Sun Yunqiu, who were well-read in poetry and books, readily accepted Western learning and devoted themselves to the wave of translating and disseminating Western science!
The entire Ming Dynasty had the momentum to catch up, but bad luck, natural and man-made disasters, unexpectedly interrupted the process, and then it retreated back to the age of ignorance, letting the land of China sink for three hundred years. Until four hundred years later, we are still struggling to catch up
So after struggling repeatedly, Zhao Hao made the decision on the Glazed Tower.
He wanted to spread this scientific knowledge decades in advance and give the scholar-officials more time. Look at this Ming Dynasty, what kind of world can it give him?
??~~
Wang Wuyang and Hua Shuyang are like twoThe child of the novelty toy watched the sun set and the sky turn dark before he reluctantly returned the copper pipe to Zhao Hao.
"By the way, Master, what's the name of this thing?"
"You can give me any one you want." Zhao Hao said with a smile.
"This thing can see thousands of miles away. I think it's called a telescope." Wang Wuyang suggested.
"I think it should be called a telescope." Hua Shuyang shook his head and said, "The telescope is too ugly."
"Which one do you think is better, master?" The two of them looked at Zhao Hao.
"I think the telescope is good." Zhao Hao chuckled, thinking that the original name sounded better.
"Just listen to the master." Eryang had only blindly worshiped Zhao Hao before. At this moment, they finally realized clearly that the Master's knowledge was so profound that no one in this world could match it, perhaps only those ancient sages could compare with it.
"But, Master, we have to go back quickly." Wang Wuyang looked at the sky and reminded Zhao Hao: "Otherwise, the city gate will be closed later and we won't be able to go home."
¡°Who said you¡¯re going back tonight?¡± Zhao Hao smiled, took out a longer and larger monocular telescope from the wooden box, put it on the window sill and said, ¡°Let¡¯s watch the moon tonight.¡±
"That's great, Master is so elegant!" Wang Wuyang was overjoyed when he heard this: "It seems that another famous novel will be published tonight!"
Hua Shuyang also nodded vigorously. For traditional scholar-officials, the bright moon in the sky is almost their spiritual companion.
From 'raising your head to look at the bright moon' to 'sharing the beauty of the moon thousands of miles away'; from 'when will the bright moon come' to 'the moon sets and crows cry and the sky is filled with frost' I don't know how many literati and poets told their full thoughts to Chang'e in the Moon Palace. , turned into one masterpiece after another, nourishing the spiritual world of the Chinese people.
At this time, Gao Wu bought a simple dinner. While eating sugared lotus root porridge, Zhao Hao asked two disciples to tell Gao Wu their knowledge about the moon.
Wang Wuyang then talked about the Guanghan Palace on the moon, the osmanthus tree, Chang'e, Wu Gang, the Jade Rabbit, and the toad
"The Guanghan Palace is thousands of feet high, with jade and jade towers like mountains and seas. The fairy Chang'e who lives in it was originally Hou Yi's wife"
"There is also a 500-foot-tall osmanthus tree in the Moon Palace. Immortal Wu Gang holds a giant ax and chops down the osmanthus tree day after day. But as soon as the ax leaves, the wound on the osmanthus tree heals immediately. Therefore, Wu Gang cuts the osmanthus tree all year round. , but still can't cut down this tree"
"Then why did Wu Gang cut down the tree?" After Wang Wuyang finished speaking, Gao Wu finally asked.
"This" Wang Wuyang scratched his head after hearing this and said, "I really don't know."
"I guess it was the Jade Emperor who promised him that as long as he chopped down that tree, he could sleep with Chang'e" Hua Shuyang couldn't help but chuckle. After saying this, he remembered that his master was not yet an adult, and hurriedly slapped his mouth hard. one time.
"I'm talking nonsense!"
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