His Majesty Li Er was very embarrassed, but he couldn't open his mouth when he was worried.

Li Chengqian was also very embarrassed, although he could open his mouth, but he didn't know who to say to - the train experiment was originally smooth sailing, but a sudden problem almost caught everyone off guard.

Two full days have passed, and the towing experiment has been stuck on the twelve cargo carts, which makes Li Chengqian have to drag his body that has just recovered from a serious illness and return to the 'battlefield'.

"What's going on, wasn't it going on before? Why can't it be dragged all of a sudden? Li Chengqian asked Zhengse after going around the whole train.

"Your Highness, the test is empty, and this time the twelve carriages are all filled with stones, so ...... I can't drag it anymore. Tang Shanzhi has been with Li Chengqian, and said cautiously.

This product did not appear during the first test run, and was found out by Li Chengqian afterwards, and only after calling to ask did he know that he had accompanied his fiancée to Luoyang that day.

Li Chengqian, who got this answer, was really angry, gritted his teeth and deducted Xiao Tang's salary for half a year, and also lowered him by two grades, almost reducing the goods to the point of not being in the stream.

But fortunately, although the grade has been reduced, the position has not been reduced, and it is still the order of the Research Agency.

This is also the reason why Xiao Tang has been carefully accompanying Li Chengqian, after all, the level of the seventh grade is too low, which makes people feel a little embarrassed, and he also wants to be promoted back as soon as possible. Otherwise, when he Lao Tzu came back from Shandong, he would have to beat him if he knew about it.

"It's impossible not to drag, it's impossible." In later generations, Li Chengqian had seen the towing capacity of the train, and 100 wagons were not a problem, how could he not even tow 12 wagons, and resolutely denied Xiao Tang's conclusion with an attitude.

In his opinion, the current locomotive may have such and such problems, but it will never be able to drag twelve wagons, although the first generation of trains in the Tang Dynasty is simple, but it is impossible to be so much worse than later generations.

"Your Highness, we have tried many times, and last time we almost even scrapped the steam engine, but if it doesn't work, it won't work, there is really no way." Tang Shanzhi knew the importance of the train to Li Chengqian, and in his opinion, Xiao Li could not accept this fact, so he firmly believed that it was impossible to drag it out.

And in fact, it is true, the things that have been made with great effort and material resources can't even drag twelve wagons, Li Chengqian really can't accept this fact, because he doesn't believe Xiao Tang's conclusion at all: "No, there must be a problem here, there must be a problem." ”

The people around stopped talking, and everyone's eyes were focused on the old man Gong Yihan, hoping that he could open his mouth to persuade Li Chengqian. This old man is now the oldest of all of them, and presumably His Royal Highness the Crown Prince will carefully consider what he said.

However, everyone miscalculated the old man's desire for success in his heart, and thought that the old man would dissuade Li Chengqian head-on, but as soon as the old man spoke, everyone was stupid.

"The old man also thinks that there is a problem here, but he doesn't know where the problem comes from, so this time I will ask His Highness to come and study it together."

Yes, it seems that persuasion is useless.

The most powerful person and the oldest person on the scene have made the same decision, so what else is there to say, I am afraid that the future days will continue to toss.

"Come on, unload all the things in the wagon, and this palace wants to see what the problem is." Li Chengqian nodded to the only old man who supported him, and then gave the order.

With a "hula", a large number of people rushed up with this order, and carried down the heavy objects in the twelve wagons one by one, and stacked them on the open space on the side.

What Datang lacks most is strong labor, and the most lacking is also strong labor. Because the scientific and technological ability is not high, basically all the laborers of Datang are engaged in physical labor, and Datang is not short of strong labor; However, because of the small population base, on the whole, the number of strong laborers is not enough.

Li Chengqian was thinking about the problem of labor, and at the same time, he was also observing the details of the various parts of the whole train, asking some simple questions, such as: whether the braking system was not opened, whether there was a fault of any wheel, and so on.

But basically the problems he can think of, the craftsmen can also think of, although those craftsmen are not as smart as him, but hundreds of people get together, even if one person thinks of an idea, there are more problems than he can think of.

So until all the 'goods' were removed from the train, Li Chengqian still found nothing.

"Lose, go start again." Li Chengqian wanted to come to find the problem himself, so he naturally had to observe every step of the way, and he naturally had to look at the no-load experiment after the 'cargo' was emptied.

After receiving the instructions, Gong Yilun spread his legs and ran as fast as he could, jumping onto the front of the car like a rabbit and starting a new round of operations.

This train can be said to have put a lot of effort into everyone, but also carried everyone's expectations, it can be said that no one wants the experiment to fail, if it is really no way at all, they will not be so disappointed.

Now, someone has finally stood up again, and it is Li Chengqian, who is known as the 'wise demon' of the Tang Dynasty, which undoubtedly ignited the flame of hope for everyone again, and the young man of Gong Yilun is naturally no exception.

"Woo......" The familiar sound of the air whistle sounded, and the whole train began to move under the burning gaze of everyone.

"Okay, stop and don't try." Li Chengqian did not let the train continue to speed up, and after discovering that the train could work, he immediately gave the order to stop.

"Your Highness, what do you do next?" After the train stopped, Gong Lun jumped out of the car.

"Don't talk, let me think about it." Li Chengqian waved his hand to interrupt Gong Yilun, rubbed his chin and squinted at the whole train and fell silent.

Everyone present held their breath and quietly stared at Li Chengqian, who was like a sculpture, even Xiao Tang, who was already disappointed.

As I just said, regarding the train, except for those aliens, no one in the entire Datang Dynasty would want it to fail, even those masters in Chang'an would not have the idea of hoping for it to fail.

The Tang Dynasty was not the pigtail dynasty of later generations, and the literati of this era were not so pedantic, and they still supported those things that could benefit the people, which is why Yu Zhining accepted the task of supervising the construction of warships in the first place.

But the problem now is that they can't solve the problem they are facing, it's like people don't lift things with the help of tools, they can lift it, and if they can't lift it, they can't lift it, and it's not something you can solve if you can't solve it.

(End of chapter)