Chapter 5079 The principle of buoyancy
Steel... can really build ships?
All the officials of the Ministry of War are all familiar with the uses of various ordnances in military wars. Even if there are no physical objects, they can still figure out the uses and impacts of some ordnances.
Getting aside the question of whether steel can build ships, what does it mean if it can be really built?
It means that the Tang Dynasty warships are no longer afraid of the invasion of wind and waves, no fear of the storm waves, no fear of the enemy's fire attacks. Every warship is a floating on the sea and never sinks. fortress!
The mode of naval battle will be broken again!
And every result of technological leadership is the Tang army's crushing the enemy. When technological leadership is two eras...
Who can match it in the world?
Everyone's breathing became heavy.
Fang Junze patiently explained: "The reason why an object can float on the water is not only its own material, but also its shape and structure... You can write down the following sentence."
He pointed at Liu Shi and said.
Liu Xian was stunned, and quickly stood by the desk, laying the paper, dipped the brush in ink, looking at Fang Jun, ready.
Fang Jun took a sip of tea and then said in everyone's expectant eyes: "The object immersed in the liquid is subjected to upward buoyancy, and the buoyancy is equal to the weight of the liquid discharged by the object!"
Liu Shi had not thought about it, so he wrote this sentence on paper.
Cui Dunli and others thought for a moment, but it was a little difficult to understand, and they said in confusion: "Is this 'physics' knowledge? But it is not seen in the book "Physics" compiled by the Taiwei."
Today, no matter Confucianism, Law, Taoism, Buddhism and other schools, almost everyone has a copy of "Geometry", "Mathematics", "Physics", and "Chemistry". They are amazing about the knowledge they learn, and study humbly and study hard.
Fang Jun sighed: "Any discipline is endless. How can a mere book tell you in detail? The way of nature is to explore the laws of nature, and the vast and boundless universe is urgently needed. We are exploring and pursuing endlessly. In the past two years, I will calm down and compile a branch of "Mechanics" into a book and publish it all over the world. "
What" Aji The Mead Principle", "Pascal's Law", "Poma's Law", and even the "Newton's Law of Motion" were all released in the Tang Dynasty in advance.
It’s just that I haven’t thought about whether the names of these laws and principles are named after their own names.
If so, he might become the most powerful physicist in a thousand years. I feel a little embarrassed...
*****
The imperial city is outside Chengtian Gate and inside Zhuque Gate. It has five north-south streets and seven east-west streets. It divides the rectangular imperial city into several areas, with Zhuque Street as the center and facing east-west. Spread out on both sides.
From the Zhuque Gate, the first is Honglu Temple on the west side, and the second is Zongzheng Temple. Walk west along the sixth street between Honglu Temple and Zongzheng Temple and past Zongzheng Temple. The temple is the famous Censorate. After walking hundreds of steps, there is a lush courtyard with lush ancient trees and slightly dilapidated government office, which is the most mysterious Taishi Bureau in the entire imperial city.
From ancient times to the present, the yamen that steers the imperial tombs, formulates calendars, observes images, and divine good and bad luck are extremely mysterious and obscure. Idle people will never be involved in it, so as not to commit the crime of "coveting imperial power", so they are separated from a wall Compared with the people from the Censorate, the Taishi Bureau is deserted and no one cares about it.
But today, someone came to visit.
The sun shines on the ancient tree in front of the yamen, with mottled shadows. An old man in his sixties walked over. His dark and scary official robe looked a little old, wearing a squid head, gray beard, and a clear appearance. His wide skeleton supported his clothes. The robe has a bit of a general's style, and she stalked with great momentum when walking.
There was no door in front of the Taishi Bureau. The old man climbed the steps and pushed open the empty door with his hand, and walked in.
By bypassing the screen wall, I saw a pool full of lotus flowers in the courtyard surrounded by trees. A middle-aged Taoist priest with a Taoist robe and wooden hairpin was moving a stone trough to the edge of the pool, and then leaned over to tinker with something , hearing the footsteps, he looked up and saw the old man walking into the courtyard. "It turns out it was Lu Taichang. Isn't it okay to use urine to escape at the last banquet?"
Li Chunfeng stood up, picked up the handkerchief next to him, wiped his hands, and greeted him with a smile. Go ahead.
The old man smiled a little stiffly and defended himself: "What is 'urinary escape'? Vulgar! Slander! That day happened to me, I had to leave the table halfway. How could you, the Grand Historian, not distinguish right from wrong or be inconsistent? "Haha, okay, okay, that's it? Then wait until Lu Taichang's stomach will be cured that day, let's fight again! Let's see what excuses you have!" "I have been living in the restaurant for half my life, how can I be afraid of you, a bull's nose?"
The old man blew his beard and stared at him, expressing his dissatisfaction, and then pointed to the stone trough: "My Si Ling has enjoyed all the delicious food in the world, Want to taste the food of pigs? "
The stone trough is square and looks very similar to the utensils used by rural farmers to raise domestic pigs...
Li Chunfeng was not annoyed and waved his hand with a smile: "Come on, Lu Taichangsu is a judicious scholar and a master of all schools of thought. Today, let me do an experiment to verify a principle and see if you can understand the truth. "
"Experiment? Principle?"
The old man was confused and followed Li Chunfeng curiously to the stone trough.
Seeing Li Chunfeng used a water scoop from the pond and poured it into the stone trough, he reminded him: "Don't call it Taichang or Taichang all day long. I'm just a Taichang Shaoqing. What day will I wait for? It is not too late to be promoted to Taichangqing. If you call him like this again, you will think that an official is obsessed with it when you hear it, it will only make people laugh."
Li Chunfeng scoops water while disapproving: "Wei Wei He was just a playboy, and he squeezed away Zheng Boling and occupied the high position of Taichangqing. In the past, he relied on Concubine Wei's protection and acted indiscriminately, and no one was concerned about him, making him free until now. However, the current rigorous assessment of the six ministries and nine temples of the court. If there are many people and few officials, you will be impeached and dismissed sooner or later. Who else can you do this Taichangqing? "
When Lu Cai heard this, he nodded in praise, without any sense of humility: "If you want to talk about this Taichang Temple, you will have to disperse without me!"
Li Chunfeng threw away the water and laughed: "People who are the others." When I heard this, I was afraid that I would laugh at you for not being humble and overestimating your abilities, but I knew that this was true! "
He was a diner of Emperor Taizong in the early years of Zhenguan, and later he went to the Hongwenguan. He was ordered to investigate the "Yin and Yang Book". After the book was completed, he was appointed as the Taichang Shaoqing. Among them, "Xuzhai Jing", "Xu Lu Ming" and "Xuzhan Shu" were widely circulated and were regarded as the norm by the Yin and Yang families since the founding of the country.
This person likes to break through mixed things. When he was young, he was proficient in yin and yang and prescription techniques. He was knowledgeable and talented, especially in music. He was in charge of music. He was ordered by Emperor Taizong to discuss music. Since then, he always attended the banquet of Emperor Taizong. When the ministers and ministers were rewarded and expressed their feelings, they ordered Lu Cai to compose music and choreograph the poem.
One of his most famous works is called "The Seven Destiny Dance". Emperor Taizong felt that the name was not good, so he changed it to "The King of Qin Breaking the Formation Music", which once became a military song of the Tang army...
"Oh, it's actually Lu Taichang coming to the door, and his brilliance shines!"
A greeting sounded behind him. Lu Cai turned around and saw an old Taoist priest with a long hair and a childlike face in Taoist robe holding a copper scale in one hand and the other with the other. He walked out of the main hall with a smile on his face.
Lu Cai laughed and teased, "I'm free today, come and see if you are dead, you an old Taoist priest! You have been retiring for many years, but you still rely on the officials from the Taishi Bureau to refuse to leave. Some people are the Grand Historian, but they are still pressing on the Taoist Lord above their heads. I am afraid they have cursed you to die soon."
No mistakes, one poem, one content, one in one 6, one 9, one book Take a look!
To this day, all the extraordinary skills, Yin and Yang techniques, and the most profound attainments are all Taoist descendants.
For example, in the Taishi Bureau, 80% of them were from Taoist priests...
The old Taoist priest walked closer, threw the brother in his hand to Li Chunfeng, and cursed with a smile: "Even if I die, I will still have the brother Tiangang to suppress me. He wanted to be the leader of the family, wait for another hundred years, haha! "
Since he was ordered by Emperor Gaozu to create the "Wuyin Calendar" in the early years of Wude, and then Li Chunfeng pointed out many mistakes, so he I have been recalculating in this Taishi Bureau, but the results have been minimal. In the past two years, I was shocked. After studying, I improved my own algorithm and gained a lot.
Lu Cai also laughed and sighed: "I have been away from Brother Tiangang for more than ten years last time, right? I don't know where I am now. Traveling around the world, eating wind and drinking dew The breeze is in my arms and the bright moon is accompanying us. I am so envious! "
With a few greetings, I saw Li Chunfeng brushing the stone trough cleanly, and emptied the water in the trough, and took a small copper basin beside it Put it in the stone trough, and then scoop water with a scoop to fill the copper basin. The drip did not overflow, so he said wonderly, "What are you two doing?"
Li Chunfeng opened the bag, took out an iron block as big as a fist, a wooden block about the same size, and another small copper basin, and carefully wiped it with a veil: "Has Lu Taichang ever heard the most popular saying in Chang'an today? ”
Lu Cai looked confused.
The old Taoist priest Fu Renjun stroked his white beard and said leisurely: "The object immersed in the liquid receives upward buoyancy, and the buoyancy is equal to the weight of the liquid discharged by the object."
Lu Cai: "..."
He compiled rituals in Taichang Temple today, and he had never returned home for many days. He finally had time to have time to have time to take a walk in Taishi Bureau and planned to have an old friend with his little friend. After a while, I would relax. How could I know what happened in Chang'an City?
This sentence is so simple and easy to understand, but... it seems to understand but not understand.
Buoyancy?
Weight?
What does it mean? !
Li Chunfeng rolled up his sleeves and said, "Lu Taichang, let's see me do the experiment!"
Lu Cai stared at Li Chunfeng's operation with bright eyes.
Any person who is knowledgeable and talented must be energetic, have a wide range of hobbies and is very curious. When he heard the words that seem to be right but not understand, he saw Li Chunfeng fully prepared to play with these instruments, his curiosity had long been Completely aroused.
So, with Fu Renjun, stood next to the stone trough with his hands behind his back.
Li Chunfeng picked up the iron block and carefully put it into the copper basin filled with water. The iron block fell to the bottom and the water overflowed.
Li Chunfeng shouted: "Ah! It's so heavy!"
Lu Cai: "..." Are you hysterical?
There is no ghost if you don’t sink!