"I once said that the foundation of Mohism is strength. Before the School of Mohism appeared, people mostly worked with their hands. The strength of a person was no more than a hundred pounds, even less than that of a cow or a horse. The efficiency was extremely low. I called it the era of manpower," Merton said.
"The era of manpower!"
Everyone nodded. During the Pre-Qin period, productivity was extremely low, and manpower was indeed the mainstream of society.
"After the School of Mohism appeared, they began to study Mohism and created machines. Machines began to be popularized in China. The power of machines was ten times greater than that of manpower. Today, the School of Mohism's most powerful bridge-erecting machine can lift tens of thousands of pounds. This is the power of machines," Meton said proudly.
Everyone was silent. They had naturally heard of the power of the School of Mohism's bridge-erecting machine, and they were all shocked.
"Now, machines using Mohism are popularized in the Tang dynasty. A person using a machine is more powerful than ten or a hundred people. The era of manpower has passed, and the new era of machines has arrived," Meton said proudly.
"The era of machines!"
The three branches of the School of Mohism and the Gongshu family nodded slowly, agreeing with Meton's division. Now, machines had been integrated into all aspects of the Tang dynasty. The work that could not be done by manpower in the past was easily done by machines. Many machines had replaced manpower.
Yan Shigu was shocked. He picked up a pen and wrote down the four words that were destined to be written in the history books.
"Even so, we're all humans, but under one person, we're no more than a hundred kilograms. Yet, a single person can control a machine up to a thousand kilograms, or even ten thousand kilograms. Have you ever thought about the mechanics behind this?" Moton asked.
All the craftsmen were confused. The machines they made were passed down from their masters or ancestors. They had never studied the mechanism behind it. Only the two branches of the School of Mohism and the Gongshu family were thoughtful.
"The key to this is the principle of leverage that everyone knows," Moton said loudly.
"The lever principle!"
Everyone frowned. After the revival of the School of Mohism, the School of Mohism was very popular. Almost every craftsmen had a copy of the School of Mohism, hoping that one day they could create a new Mohism like Mo Jiazi. The lever principle in the School of Mohism was naturally known to everyone, but there were only a few who had created Mohism.
"That's because everyone's understanding is biased. The lever principle is not just a stick and a fulcrum. It can take many forms, such as the winch.............. of the noodle press just..... of Mohism....... the lever principle......... of Mohist....................................................................... of.................
.................
..... Li Yun faintly felt that it was not so simple, but it was like a layer of fog. No matter how hard he tried, he could not grasp that hint of inspiration.
"Similarly, our leg strength is only a few dozen pounds, but the bicycle can move a few hundred pounds of weight forward. The secret lies in the distance between the pedals of the winch. The leg strength goes through the winch and acts on the gear, and the gear acts on the wheel through the chain. This is also the effect of the lever principle." Meton turned around and rode the 28 "big bicycle around the center of the venue. Everyone watched as Mo Jiazi easily stepped on the pedals, and the bicycle's speed was comparable to a person running. Originally, everyone was just curious, but now that they understood the principle, they were even more amazed at the magic of the School of Mohism.
"In addition to the School of Mohism.
"In addition to the circular shape, the lever principle can also exist in another form, and that is the pulley. The School of Mohism's Thousand Pound Arm was created based on this principle." Meton waved his hand and a curtain fell, revealing a bracket fixed to the ground. On the bracket was fixed a row of pulleys.
"Pulleys are also levers?" Xiao Dengkui said in disbelief. The School of Mohism's Thousand Pound Arm could be said to be famous. It was the masterpiece of the School of Mohism's machinery.
Meton nodded and said, "There are two types of pulleys. The first type is fixed to the Thousand Pound Arm. It is the fixed pulley. The fixed pulley does not save energy, but it can change the direction of force, making it more convenient for us to use force."
Meton said as he used a rope to tie up a hundred pounds of weight. He used the rope to pass it through the fixed pulley. The weight that originally needed to be lifted only needed to be pulled down.
"The fixed pulley changes the direction of force, and the real saving energy is the pulley set formed by the moving pulley and the fixed pulley." Meton struggled to put down the rope and gasped for breath.
Meton picked up a moving pulley and connected it to the fixed pulley on the arm of the crane, forming the simplest pulley set in front of everyone. This time, Meton pulled the platinum weight without much effort. After that, as Meton added more pulleys, Meton found it easier to pull the hundred pounds of weight. This time, Meton pulled the hundred pounds of weight very easily. He even naughtily pulled it up and down a few times.
"So that's how it is?" The ordinary craftsmen were suddenly enlightened. The Mo Family had opened up a whole new world for them in terms of craftsmanship.
"You can see the situation just now. As for the more pulleys, the more effort it saves. As for how much effort it saves, it is determined by the number of ropes in the middle of the pulley set. With the number of ropes, the strength used by the human force is a fraction of the weight used by the object," Merton said.
Li Yun's eyes lit up as if he had understood the key point.
Merton said, "In this way, let us return to the most basic form of the lever principle."
Meton waved his hand, and a group of Mo Jiazi's brothers carried up something that looked like a seesaw in a children's playground. The fulcrum of the lever was not in the center, but to the side.
"This is a lever specially made by Mo Jiazi. The length of one end is one foot, and the length of the other end is ten feet." Moton hung the fifty kilogram weight on the one foot long end, and walked to the one foot long lever. He said in a clear voice, "You're right. "How many pounds of weight do you think can be used to lift the hundred pounds of weight?
"Ten pounds!" Everyone said without hesitation. In the past, they only knew that the longer the lever, the more effort it would save. However, after Mo Jiazi's many demonstrations, they naturally understood the mystery.
Meton immediately revealed a knowing smile. He hung the ten pounds of weight on the ten feet long lever. The entire lever was like a scale, balancing on both sides and lifting at the same time.
"It seems that everyone has understood the secret of the lever principle. However, have you ever thought that if a long lever can reach a hundred feet, a thousand feet, or even infinitely long, then this lever can lift many heavy objects?" Meton's voice gradually became louder and louder, resounding throughout the entire place.
Everyone's heart trembled, and they could not help but tremble from the bottom of their hearts. If this could really be achieved, then wouldn't Mo Jiazi be omnipotent?
"Give me a fulcrum, and I will move the entire earth." Meton finally said the most arrogant words of mankind.
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