"Hmm...... Is this carriage really that good? ”

After turning around Li Yuanjia's carriage a few times, Li Shimin's heart was full of curiosity.

When Li Shimin knew that Lao Eleven was actually sitting in a carriage all the way, he was indeed a little unhappy in his heart.

However, he also knew that the kid hardly went out on weekdays, and his riding skills were quite bad, so he didn't plan to ask, but then he heard that the carriage Li Yuanjia was sitting in was very strange, and the four wheels could be easily controlled when galloping on the road, which made the emperor a little curious.

There are always good things in Han Wangfu, he knows this very well.

And more importantly, Li Shimin knew that although his younger brother was low-key, he never carried any moisture when he said it. So if you can let him say that the two-wheeled carriage will become extinct in the future, I'm afraid that the four-wheeled carriage in front of him really has an amazing secret!

From ancient times to the present, everyone has been using two-wheeled carriages, but it does not mean that four-wheeled carriages have not been built, but first, the volume is large and bulky, and secondly, the problem of steering has always been difficult to solve, so everyone is not interested.

But Li Yuanjia's carriage seems to have been solved?

After circling around the carriage a few times, Li Shimin didn't ask about the few things that made him feel very fresh, but looked at Li Yuanjia first: "Eleven Lang, take me up to have a look!"

"Okay, second brother."

Seeing that he seemed to be in a good mood, Li Yuanjia was no longer called His Majesty, and directly used the title of second brother.

Not much nonsense, Li Yuanjia directly took the emperor to board the carriage, opened the curtain and got in.

As soon as he came in, Li Shimin's eyes narrowed, and he was quite surprised in his heart - the space in the carriage was larger than he imagined, and the two of them were not too crowded at all to stay inside, and ......

"This ...... You actually prepared a futon in the carriage? ”

Sitting in the carriage and patting the quilt under his buttocks, Li Shimin looked weird, and said with a smile: "Others participate in the winter hunt on horseback, and they are exposed to the wind and sun along the way, you will enjoy it...... The wind can't blow, it's much warmer than outside, and you can suffer a lot less along the way! ”

He couldn't have imagined that Li Yuanjia would make a carriage like a small bedroom, covered with a thick mattress and a thick quilt on it! In addition, there were thick curtains hanging around it, which made the carriage much warmer than outside, and Li Er felt the warmth when he came in.

So after being surprised, Li Shimin became more and more unhappy in his heart!

Lao Tzu rode a horse and was cold outside, you kid can even lie on such a comfortable carriage?

It just doesn't make sense!

Of course, Li Yuanjia also noticed the change in the expression on the second child's face, and his heart suddenly changed, and he hurriedly said: "Second brother, the younger brother deliberately took this carriage this time not only for enjoyment!" ”

He knew that Li Shimin was not easy to fool, and he didn't dare to deny that he wanted to enjoy it.

So after hearing this answer, the emperor raised his eyebrows and smiled with a strange expression: "Oh? Tell me, what are you doing with this carriage this time? ”

"Well...... this"

After the only groan, Li Yuanjia said with a straight face: "Second brother, the younger brother originally asked people to make this carriage because if this thing is done, it will be of great use!" If used properly, it can bring a lot of benefits to Datang! ”

Li Shimin was noncommittal about what he said, but smiled and then asked, "Okay, come and tell me, what's the benefit of this carriage?" ”

"First of all, of course, it's more comfortable to ride."

patting the wall of the carriage, Li Yuanjia said with a smile: "Because of the four wheels, the carriage of the carriage can be made larger, so that the inside is more spacious and the ride is more comfortable...... Of course, the carriage becomes bulky when it is made large, so a carriage like this one requires at least two horses to pull it, and if you want to run faster, you can use four key horses at a time, like the courtier......"

When he said this, Li Yuanjia couldn't help but be glad about his identity again.

The Son of Heaven drove six, so as a prince, he would definitely not dare to use six horses, but there was no problem at all with four horses pulling a cart. If you were an ordinary person, if you dare to use four horses at a time, you will probably be cleaned up.

Listening to Li Yuanjia's words, the emperor nodded.

This point is in front of his eyes, just look at it and you can understand it, it is very understandable, so Li Shimin raised his eyebrows and said, "What else?" Keep moving! ”

If this were the case, the emperor's interest would not be great.

For Li Shimin, nothing is as convenient as riding a horse directly, even if you need to ride a carriage, it is only a short time and a short distance, and it is meaningless to ride comfortably.

"Another benefit, of course, is the load."

Taking a deep breath, Li Yuanjia's expression became solemn: "Second brother, with this four-wheeled carriage, this thing can not only be used to carry people, but also to transport goods!" I've tried that if it's used to load goods, this wagon can hold at least 400 pounds of goods, and there is no problem at all with two horses pulling a horse! If we can improve it better in the future, maybe we can pull more! ”

Saying this, Li Yuanjia was sure in his heart that the improved carriage would definitely be able to pull more!

"Oh? Four hundred pounds? ”

Hearing him say this, the emperor finally became a little interested.

From ancient times to the present, transportation has always been a major problem for the imperial court, especially for the Tang Dynasty, the lack of grain in the north has almost become a problem for the emperors. Even with the Grand Canal, which was built by Emperor Yang of the former Sui Dynasty, it could only ensure that grain could be transported to Luoyang, and it was still difficult to supply the megacity of Chang'an.

Therefore, every few years, the emperors would take the Tang Dynasty center to Luoyang and live for a year and a half, in order to relieve the pressure on Chang'an's food supply.

So as soon as he heard that this carriage could pull 400 catties of goods, Li Shimin naturally became interested.

It's just that after seeing the subtle expression change on his face, Li Yuanjia was a little panicked, and quickly coughed lightly: "Ahem, but it's ...... Second brother, although this four-wheeled carriage is good, as I just said, the two-wheeled carriage will become extinct in the future, I am afraid that it will not be realized for the time being. ”

"Oh? What do you mean? ”

After listening to Li Yuanjia's words, the emperor's brows immediately furrowed, and he glared at him very dissatisfied.

As soon as he got a little interested, he was splashed with a bucket of cold water, and Li Shimin was naturally very unhappy.

It's just that even if he is unhappy, Li Yuanjia doesn't dare to let him misunderstand that this kind of four-wheeled carriage can be promoted on a large scale to solve the current transportation problem. In that case...... Not just in case, but if it definitely doesn't work, isn't it a crime of deception?

So after pondering for a while, Li Yuanjia said seriously: "Second brother, although the four-wheeled carriage is good, there are too many restrictions on its use, and it costs to build one, and it is probably enough to build ten ordinary carriages......"