Lao Xu and the others finally understood why Li Yuanji repeatedly reminded those who engaged in scientific research that their brains must be big.

Don't always think that some whimsical ideas are, whether they are or not, you can only know after experimenting.

Engaging in scientific research, to put it bluntly, is throwing money, burning money, and if you don't produce results, you will naturally be scolded by thousands of people, but once the results are produced, it will affect the entire history.

After solving the biggest problem, Lao Xu and others are no longer entangled in financial problems, let alone caring about other people's eyes.

Success is in sight, what if all researchers oppose it at this time? As long as His Majesty supports it, besides, this time they are not the kind of aimless experiment.

As long as the power problem can be solved, the others can only be regarded as some small problems, which can be improved slowly, even if it is necessary to continue to invest, the amount of investment is very limited.

In this way, within half a month, Lao Xu and they made more than 50 cylinders in one go, the air inlet and the air outlet are located in different positions, and after several tests, they finally found a relatively reliable position, and also installed a gas blocking device to prevent the gas from being lost when it should not be lost.

"Your Majesty, the ministers have taken a lot of detours before, on the same problem, a lot of resources and funds have been wasted, and it has also had a huge impact on the progress of scientific research, if this problem can be solved earlier, the steam engine can be made at least half a year in advance......" Looking at the steam engine running on the ground in front of him, there was a white hot gas being spewed out from time to time in the wheel, Lao Xu did not ask for credit, but asked for guilt.

The emperor's support is true, but there are more opposing voices in the academy, and no one knows if the emperor has a bad impression of them in his heart.

Therefore, they don't dare to take risks, and those who endure something that is not bad and know how to be restrained will always be better than those who don't know the height of the sky.

Listening to Lao Xu's introduction, Li Yuanji couldn't cry or laugh.

If they had asked themselves earlier, the problem would have been solved long ago.

Although I am not particularly clear about the principle of the steam engine, there is no doubt that I still know the entry and exit of steam, and if I had seen this earlier, it would not be difficult to find the problem.

But it was such a small problem, but it had plagued them for so long, and in the end, it was the most basic researcher who first discovered the problem.

The steam only goes in and out, and the device inside naturally can't stand it, because the pressure of the work will be more and more great, and the requirements for strength will be higher and higher, and the addition of the air outlet hole is equivalent to a cycle, and the internal pressure is balanced, so that the highest time does not exceed a certain limit, and the bearing capacity of the device is obviously many times higher than this limit, so it is naturally not a problem.

But then again, when it comes to scientific research, what they need is that they can find and solve problems by themselves, which is a complete process.

If you need to remind yourself of any problem and tell them the solution, what should you do if you encounter a problem that you don't know in the future? Isn't this digging a hole for yourself?

Although it was digging a pit, it seemed normal to see that this small experimental version of the steam engine had been running on the ground for half a quarter of an hour, except for the need to add coal and water frequently.

Of course, the motivation may be a little lacking, but that's not a problem.

It is naturally best to be able to make a locomotive with a speed of more than 100 kilometers per hour in later generations, but now there is no such condition and no ability, so Li Yuanji never thought about getting it to that point.

The train is pulled by horses, it is just a helpless move, there is nothing to see in the short distance, you can go from Chang'an to Luozhou, even if the speed of the train is a little slower, but the first to get there must be the train.

No one can guarantee that they will always be on the right path, and no one can guarantee that they will not take detours, these are all necessary experiences for development.

And the reason why Datang can rise in an instant in just a few years, although Li Yuanji thinks that this is normal, but in fact, the entire Datang high-level knows very well that this is all the credit of Li Yuanji, the emperor.

Although it seems that he has not done anything, every decision he makes is correct, it is of great help to Datang, and it is accelerating the re-emergence of Datang.

Nowadays, one year's development can be equal to the development speed of the previous two years, or even five years, and the faster the development speed will be.

In the past, these officials had only one thought in their hearts, hoping to restore Datang to the level of the pre-Sui period in their lifetime, but now, this wish seems to no longer exist, and they don't even dare to imagine what Datang will develop next?

What they don't know, Li Yuanji has a mirror in his heart, and he knows very well which direction he needs to go.

Li Yuanji waved his hand, indicating that it didn't matter.

"There is no smooth sailing in scientific research, all kinds of problems can arise at any time, I understand the pressure you have been suffering from these days, and I am proud that you have been able to withstand the pressure and successfully complete the experiment." Li Yuanji said with a serious face, which really scared everyone.

It's okay if the emperor doesn't count them, but now the emperor actually said that he was proud of them, Rao is a forty-year-old Xu, and his mind was also blank at this time, and he didn't know what he should say?

"However, now is not the time to relax, and the reason why I do not put pressure on you is because I am well aware of the importance of the steam engine, and its role is not only used in trains, but also in many other places where it is needed, so I do not want to put more pressure on you, and hope to create a comfortable environment for you to do this. Now that the biggest problem has been solved, there are only two things you need to do, zoom it in equal proportion, and then pull it to the rails to test, and the second one is to carefully check it, especially where the water vapor passes, how to prevent rust is the key. ”

"This ......" Lao Xu and the others, who were still a little excited, instantly looked confused.

They don't seem to have thought about this problem, or rather, they have gone through countless experiments and found that each test will have the same result, thinking that it is unsolvable, so they ignore the problem.

But now Li Yuanji once again mentioned the matter of rust prevention, which made Lao Xu and others nervous as if they were facing a great enemy.

"What? Difficult? Li Yuanji saw that Lao Xu's face was a little abnormal, and secretly said What is a big deal about rust prevention? Obviously not, but why do they have constipated expressions?

"Your Majesty, we have tried many different materials before, and found that if we use it all the time, there will be no rust problem, but if we leave it for a few hours, there will be slight rust, and if we leave it for a day or two, it will need to be treated before it can be used. And this is all the components have the same problem, Chen believes that if you want to solve this problem completely, it is best to start from the steel, after all, this is the source of the problem. Lao Xu said with a frown.

Li Yuanji was stunned in his heart, and secretly said that he was careless.

I was a little carried away with the excitement when I got the steam engine, but I forgot a more serious problem, and the current iron-smelting technology seems to be a little unable to keep up.

Although alloy steel has appeared, the number is too small, and the use of many steels is not clear, there is no professional equipment to detect, its strength, toughness and a series of data can not be detected, as for whether it can be used, can be used as what to do, can only be through continuous testing, and then let time to tell them.

Indeed, lubricating oil can indeed help the engine to lubricate, reduce wear and prolong the service life of the engine, but if the engine itself is uneven and the material is not up to par, even if the best lubricating oil is used, it will still not have much effect.

can make it out but can't use it, which makes Li Yuanji very painful.

"On the steel side, I will let them step up the test, and you can't stop here......" After thinking about it, Li Yuanji continued: "Since there is no good way to prevent rust, you should put more effort into repair, and it is best to facilitate repair to the greatest extent without affecting the performance, and replace some parts with serious wear." ”

"No!" Lao Xu sighed, since the emperor said so, no matter how much he said, it was useless, besides, the steam engine was created by him, and no one knew its true performance better than himself.

Therefore, even though there may be a big problem in doing this, Lao Xu still can't open his mouth to refuse to do so.

As for Li Yuanji, his thoughts are simpler and more helpless.

How many years did it take for the steam engine to be used on a large scale? It only took me three years to figure it out, shouldn't I be glad I did?

Although there are many problems with it, and even some of them are problems that cannot be solved at all, but no matter what, there is a problem after all, if the maintenance is more diligent, the inspection is more frequent, any slightly abnormal parts, immediately replaced, although it will waste a lot of resources, waste a lot of time, but can maximize the efficiency.

In addition, those replaced parts can also be melted and re-forged, which can be regarded as waste.

The rest of the other problems can only be improved over time, and then slowly, little by little.

Coming out of the Academy of Sciences, there were silver-white snowflakes floating in the sky, looking up at the sky, and letting the snowflakes fall on him, at this moment, Li Yuanji was a little confused......