I was watching short videos and was seen by ancient people

Chapter 279 Necessary for Time Travel—Making a Steam Engine ()

"Barrage tendency: There is no need for sealing. The thermal expansion and contraction of the inside and outside can seal the piston. 》

This……

People from all dynasties were a little confused when they looked at the comments on the sky screen.

They don't know what thermal expansion and contraction are, but they can make a steam engine airtight without sealing.

Regarding this comment, although they have not done any experiments, they do not believe it!

In their opinion, this simply goes against the laws of things!

So they ignored the comment and continued to use the scissors in their hands to cut the animal's fur and seal the steam engine.

After many comparisons, they found that it is better to use animal fur for sealing, although this sealing material is not very durable compared to other sealing materials.

But for them, this is not only lower cost, but also easier to replace. Sealing materials made of this kind of material are also more suitable for common people like them!

For common people like them, every money in life needs to be cherished. Otherwise, if a gust of wind blows in life, they will be unable to bear it.

They made the steam engine in the hope that it would improve their lives, instead of letting them drag them down!

As for selling their steam engines at high prices, they have no such extravagant expectations, and they also know what they are capable of!

When scholars from various dynasties saw the comments on the canopy, they recalled the "Huainan Ten Thousand Bishu" written by King Huainan during the Western Han Dynasty.

This book contains sentences about thermal expansion and contraction, but this book has always been regarded as a collection of alchemy books, so that no one pays attention to it!

But now the comments on the marquee have made them realize that knowledge is everywhere.

They should not ignore the knowledge of exploring the world because of some prejudices!

They, scholars, also need to seek and explore this knowledge to make the entire society more prosperous.

So they collected a large number of books, read them slowly, and then compiled them into volumes and passed them on to later generations!

Qin Dynasty.

The Mohist disciples looked at the comments on the sky screen. It took them a long time to digest them before they slowly understood their meaning.

They did not have the concept of thermal expansion and contraction at this time. Even if they discovered this phenomenon, they only regarded it as a normal natural law.

But now that it was mentioned on the sky screen, they understood this truth.

This also made them realize the gap between themselves and the people of later generations.

This knowledge that seemed sparse and ordinary in later generations turned into profound knowledge in their time.

Sometimes they even think about it for a long time and still don’t understand the meaning.

But all this became the past, a marquee appeared from the sky, and the way they learned knowledge became learning on the marquee.

This not only broadens their horizons, but also allows them to learn more things unconsciously.

Han Dynasty.

Emperor Wu of the Han Dynasty Liu Che looked at the comments on the sky screen and thought of Liu An, King of Huainan.

Back then, he learned from Qin Shihuang and has been looking for the art of immortality just like Qin Shihuang.

It's just that his result was the same as Qin Shihuang's. He didn't find any immortality. However, he also compiled a book "Huainan Wanbi Shu" for future generations.

It not only records the principle of tropical cold shrinkage, but also how to make tofu. At that time, the king of Huainan, Liu An, regarded tofu nao as the elixir he refined. However, this elixir was so delicious that people couldn't help but spread it!

Thinking of this, Emperor Wu of the Han Dynasty Liu Che began to pay attention to this book.

For him, there is no good or bad knowledge in the world. Even the knowledge of those warlocks can get the treatment they deserve as long as it is helpful to the big man!

, and issued a request to the craftsmen, asking them to study this book and make use of the knowledge in it!

Emperor Wu of the Han Dynasty Liu Che hoped that in the future, no matter what kind of knowledge the Han Dynasty had, as long as it was beneficial to the Han Dynasty, he could use it!

The emperors of other dynasties looked at the comments on the canopy. They couldn't believe that later generations could use the principle of thermal expansion and contraction to make the steam engine airtight!

Some emperors even began to implement this method in order to verify whether it was true.

But the result made them very disappointed. The steam engine produced in this way was not as good as what was said on the canopy!

They can only honestly let their craftsmen use other methods on the canopy to stop the steam engine from leaking!

Lu Feng looked at the comments and gave this comment a thumbs up!

He had seen a sentence in the comment area: "Big factories rely on freezing, small factories rely on burning, and workshops rely on knocking."

He has never been into a large factory or a small mechanical factory, but he has seen a lot of those workshop-like ones.

But he still didn't believe that the steam engine could be completely sealed by thermal expansion and contraction.

If it is true that it shrinks when heated, then those factory-produced products would no longer need sealing rings!

"Little Farming Expert: In fact, it is not as good as making a steam turbine. The boiling water blowing fan wheel assembly is simple, easy to make and more efficient." 》

When people from all dynasties saw the comments on the sky screen, their eyes lit up.

The steam engines they manufactured were not very efficient due to their own reasons.

It is the comments on the sky screen now that have given them a new direction!

So they began to improve the steam engine at home, hoping that the steam engine would drive the fan wheel and then drive various machinery.

What made them happy was that this steam turbine was exactly what it said on the canopy. It was not only simple to manufacture, but also more efficient!

The emperors of various dynasties were also a little surprised when they saw the comments on the marquee.

Making this steam engine originally surprised them, but they didn't expect that there was another way to use it!

To verify whether what is said on the marquee is true? They started those craftsmen started raising!

And the result did not disappoint them. It turns out that boiling water can be used in this way!

After verification, emperors of various dynasties began to make plans based on the manufacturing methods of the two steam engines on Tianmu!

Qin Dynasty.

After Qin Shihuang had people verify it, he began to let people know that Qin knew my orbit next to him.

It was also at this time that he slowly realized the shortcomings of Da Qin.

The train track that can be easily built by later generations has its old name in this era!

After all, they didn't have that much metal at this time, so they couldn't build a train that could withstand heavy loads coming and going!

The situation encountered by other dynasties was similar to that of the Qin Dynasty, which made them feel deeply helpless!

But they didn't have any solution. Even if they learned how to make iron in a blast furnace in later generations, it would have no effect. For them, a large amount of steel did not happen overnight!

And they are in an era when accumulation of knowledge cannot fill the gap. If they act too hastily, it will cause trauma to the common people!

Just when they were thinking about something, a new video appeared on the sky screen!

(End of this chapter)