The efficiency was improved, so when it first started running, the steam engine could reach the speed of the steam engine after Watt's improvement.

At first, it could reach speeds of over 30 kilometers per hour, but over time, the speed slowed down, and it could only pull the iron carriage at 7 or 8 kilometers per hour, which was no different from the speed of a human jogging.

"No need to be polite, just continue, don't worry about it."

Even if you improve the internal structure of the steam engine, the fatal problem of sealing will make it impossible to mass-produce and put it into use.

Unless, like a racing car, every time the train runs a certain distance and arrives at the next train station, the steam engine replaces the copper rings and lead washers.

But the cost and time taken were even less than taking a horse-drawn carriage, so before Watt's improvement, this was an unsolvable problem.

Now that rubber has finally arrived in the Song Dynasty, the unsolvable problem of sealing has finally been solved.

At this moment, Guo Zi led Su Song and others to dismantle the outer casing of the steam engine, removed the remaining copper rings and lead pads in the steam engine except for the high-pressure boiler, and installed cut and polished rubber rings and rubber pads.

The reason for using it in addition to high-pressure boilers is that the temperature of high-pressure boilers can reach over 200 degrees, and rubber cannot withstand it and is prone to aging, so copper rings are still needed to support it inside, and rubber pads can be used on the outside.

In this way, even if cracks appear on the surface of the copper ring due to thermal expansion and contraction, the rubber pad can ensure that the steam inside cannot escape and remains in internal circulation.

It was not until this time that Zhao Jun and many prime ministers could clearly see the internal structure of the steam engine.

It is extremely large in size, with the locomotive alone weighing more than two tons. The main components inside include a reciprocating steam engine, a high-pressure boiler, a throttle valve, a centrifugal governor and other large components.

There are countless other various pipes, cylinder pumps, and chains. The entire structure is extremely complicated and dazzling. It is completely incomprehensible to those who are not university science majors.

This also shocked many prime ministers, including Zhao Jun, at the strength of the industry, and made them full of admiration for the researchers in the School of Physics.

Although the imperial court spared no effort in supporting the academy, basically giving them whatever money they asked for, and even providing them with raw materials such as iron, copper, and lead in piles.

Zhao Zhen even found the structure and manufacturing method of the steam engine directly in history, which greatly saved their research time.

But it's like in later times, when the experts of Big Brother Mao left behind a lot of drawings before they evacuated. But without the experts' interpretation, our experts couldn't even understand what these drawings meant.

It doesn't mean that you can restore it just by finding the structure and production methods from history. This requires great wisdom and countless attempts.

In just ten years, scholars at the Institute of Physics almost replicated a complete steam engine, which is enough to show that the wisdom of the ancients was far more powerful than we imagined. They just didn't have as much knowledge as later generations.

About half an hour later, they finally reinstalled the entire machine.

Many technical officials climbed down the ladder without caring about the oil or gray stains on their bodies. They simply wiped themselves clean and then a few of them climbed into the front of the train to start working.

About twenty minutes later.

“Boom!”

As a large amount of coal was added to the furnace, the hot water in the boiler quickly began to boil and then steam overflowed.

"Beep, beep, beep, beep."

It sounded a bit like the roar of a tractor, and then more than a dozen iron tires below began to turn slowly under the push of mechanical rods, and the locomotive also started slowly.

"OK!"

"It's started again."

“It’s awe-inspiring every time I watch it.”

The crowd around burst into warm cheers.

The School of Physics often runs trains for experiments because it needs to frequently debug the performance of steam engines.

But every time they watch it, they still feel extremely shocked.

The terrifying giant beast made of steel, the gray-white smoke billowing out of its chimney, the metal sparks splashing on the track when the iron wheels braked, and the huge noise, all deeply intoxicated people.

Even for someone like Zhao Jun, who was born in the later era and is used to seeing the Harmony Express that can reach more than 300 kilometers per hour, seeing this classic steampunk is still moving.

The first industrial revolution that we learned about in history textbooks in middle school included the spinning jenny in 1765 and Watt’s completion of all improvements to the steam engine in 1785.

I didn’t feel much at the time. I thought it was just history and too far away from my life.

Seeing this power still functioning in reality was truly moving. Every leap forward in technology is truly astonishing, and the millions of people who create these technologies are even greater.

Those kings, princes, generals and ministers are nothing but passing clouds and flashes in the pan. One after another they come on stage. Only the people are the creators and subjects of history.

“Pah pah pah!”

Zhao Jun took the lead in applauding.

This form is not popular outside and only appears within the Constitutional Court.

But he clapped, and the prime ministers also began to clap.

Immediately afterwards, the crowd around began to clap their hands, and the applause was thunderous.

The locomotive slowly drove the carriages behind it to move, and the speed became faster and faster, from the initial seven or eight kilometers per hour, it quickly climbed to thirty or forty kilometers per hour, and even had an upward trend.

The parade ground was already very large. The train ran farther and farther away, and soon it had gone one or two kilometers, then slowly slowed down, turned, and slowly headed to the left front with the melodious sound of the whistle.

My dear, there is more to this chapter. Please click on the next page to continue reading. It will be even more exciting later!