The crown prince Li Heng looked at Li Changguo's attentive look in his eyes, was very surprised, and asked, "What's the use of this?" ”

"The prince doesn't know, this is for sleeping." Li Changguo knew that Li Heng had not seen it, and explained to him: "When you spread it out and sleep inside, you can shelter from the wind and rain, even if it is in the ice and snow, you can sleep warmly." ”

"Really?" Li Heng's eyes immediately widened, and he was in disbelief.

"Indeed!" Wang Wei was very surprised and asked, "General Li, do you know this bed?" ”

How many modern people have never seen a sleeping bag?

Of course, Li Changguo couldn't say it clearly, and said with a smile: "I thought about it as soon as I heard that you were named Ben Bed, and I was stunned." ”

Wang Wei gave a thumbs up and praised it greatly: "I cherish this thing very much, and rarely look at people, General Li knows its use when he is famous, and he can do it!" Great! ”

"Can you do more?" Li Changguo's eyes widened, staring at Wang Wei.

Sleeping bags are urgently needed at the moment, and if more can be made, it will have a great effect on the eradication of Tibet. However, with the scientific and technological level of the Tang Dynasty, Li Changguo is really a little uncertain whether he can do more.

The biggest problem with sleeping bags is to insulate and keep them warm, and if this problem is solved, everything will be easy.

"No problem." Wang Wei was full of confidence and said: "Although it is a little troublesome and laborious, it is difficult for our craftsmen, I only need to explain the method and ensure that they can make it." ”

"Great!" Li Changguo praised loudly, couldn't wait, and said, "I'll try it first." ”

Without saying anything, he put the sleeping bag on the ground, opened it, got into it, sealed the entrance, and fell asleep.

I have to say that the warmth effect of this sleeping bag is very good, once sealed, the air conditioner can't come in, and it's much warmer. Although it is much worse than heating by fire, it is commendable to have such an effect in ancient times.

"Li Changguo, okay? Come out and let me try. Prince Li Heng's curiosity was aroused and he urged loudly.

"The prince is not busy, let me sleep more and feel it for a while." Li Changguo is not in a hurry, he wants to experience it in an all-round way.

Although Li Heng was anxious, he couldn't urge again, so he could only wait patiently.

Li Changguo slept in it, feeling warmer and warmer, and the thermal insulation effect was not bad, and he was more and more satisfied.

"This Wang Wei not only writes poems well, but also has such ingenuity that solves a big problem for us." Li Changguo was overjoyed, and he did not hesitate to praise Wang Wei.

After half an hour, Li Changguo came out, Li Heng didn't say a word, he got in and praised it: "It's very warm." If you have some mattresses, it's not inferior to the warm couch. Wang Wei, you are really ingenious. ”

"The prince has won the prize." Wang Wei said humbly.

"Wang Wei, you have made such a great achievement, what kind of reward do you want?" The crown prince Li Hengfeng opened his mouth and slept in his sleeping bag, rolling and feeling it.

Wang Wei didn't dare to accept the reward. If he could, Wang Wei wanted to participate in the battle to pacify Tibet. Wang Wei looked at Li Changguo with a pair of eyes, his eyes were both expectant and nervous.

What I was looking forward to was that Li Changguo agreed, and what was nervous was that Li Changguo did not agree.

"That's easy to say." Li Changguo appreciated Wang Wei very much, and said: "Let's take the couch to the ordnance supervisor first, ask the craftsmen to see if they can do it, and then go to see Your Majesty and talk about it." ”

"General Xie Li!" Wang Wei bowed deeply, his face was full of red light, he was even happier than eating honey, and he really wanted to hold Li Changguo and take a few bites.

Who doesn't take galloping on the field as his own responsibility?

Not to mention the thousand-year-old event of pacifying Tibet, isn't Wang Wei overjoyed?

After a while, the crown prince Li Heng came out and was full of praise: "Not bad! Not bad! Very good! One is that it is a little hard, and it is very cushioned to sleep in. Second, it's still a little cold. The cold in Tibet is far greater than that in Chang'an, and this matter needs to be considered more and needs to be improved. ”

"Prince, it's best if this matter can be solved, and it doesn't matter if it can't be solved." Li Changguo has already made up for it: "This is very easy to do, you just need to find a place with thick ice and snow to set up camp." Sleeping on ice and snow is not much different from a brocade mattress. ”

"Hmm!" The crown prince Li Heng is also a smart man and agrees with this statement.

"As for the cold, you can make a fire, and the soldiers can lie down on the fire, which can alleviate some relief." Li Changguo continued.

"Building a fire to keep warm is a way to alleviate the cold. But that's not enough. Li Heng raised his eyebrows and said with a smile: "Yes, let's go to the Ordnance Prison first, and then we will go to see our father and the emperor to solve this matter." ”

"What's the prince's plan?" Li Changguo was a little puzzled.

"Hey, hey!" The crown prince Li Heng smiled maliciously for a while: "You Li Changguo also have times when you can't figure it out?" Just wait and see, this thing must be done beautifully, so that the soldiers will not be frozen. Go, Armament Supervisor. ”

Although Li Changguo wanted to ask for an explanation, Li Heng was reluctant to say, so Li Changguo had no choice but not to ask, and the three of them rushed to the ordnance prison.

When they arrived at the Ordnance Prison, the crown prince Li Heng ordered a group of good workers to come, a total of hundreds of people, Li Heng threw the sleeping bag in front of them and asked, "Can you make it?" ”

These craftsmen were the top scientific and technological forces of the Tang Dynasty, and they examined the sleeping bags, their eyes lit up, and they smiled: "Such ingenuity, it is really unexpected." ”

Wang Wei straightened his chest and was a little proud.

However, his pride soon faded, and he listened to the accusations of the craftsmen: "Which inferior craftsman did this?" So clumsy. If it were for us, it would be more tossed and lighter. ”

"So, what can you do? Can it be made warmer? "Keeping warm is the top priority," Li Changguo asked loudly.

"We don't have much to do with it." A craftsman hesitated for a moment to answer.

"It's not impossible, if there is a fox skin, it can naturally be warmer." There are craftsmen who come up with ideas.

In the Tang Dynasty, there were no warm materials such as cotton and velvet, and fox fur was the top warm material. It is rumored that the best fox fur can melt snow three feet away, and wearing a fox fur is like carrying a small sun.

"You don't need to do it, you can do it stronger, lighter, and more convenient." Li Heng waved his hand at the craftsmen and left quickly with Li Changguo and Wang Wei.

"Prince, if there is a fox skin ......" The fox skin is light and warm, which is very important, Li Changguo hurriedly reminded Li Heng.

"Instead of using fox fur there, it's better to have a fox fur per person." Li Heng explained with a smile: "You think, you can only sleep warm up when you use it in a couch." If it is made into a fox fur and worn on the body, it is very warm when marching, and it can be used as a futon when sleeping, isn't it the best of both worlds? ”

This is a good idea, but Li Changguo was surprised: "Prince, this is thousands of soldiers going on the expedition, and there are thousands of fox furs needed?" Can Datang have so many? ”

Li Heng waved his hand magnificently and said with a smile: "If there is no variegation, there are few fox furs that can melt snow three feet away." However, regardless of the color, as long as it is warm, such a fox fur, 810,000, Datang can still take it. ”

"Prince Xie!" Li Changguo was very happy, with the fox fur, the soldiers did not have to be frozen when marching, and with the sleeping bag, they did not have to be frozen when they slept, which was a great thing.

As long as the cold is solved, the physical strength of the soldiers can be guaranteed, and the odds are great.

When the three of them saw Li Longji, Li Heng told him about it, and Li Longji was very happy, and he rarely praised Li Heng.

Li Longji was very dissatisfied, so he had to pick a flagpole from the chopsticks, find a tall one among the short ones, and set up Li Heng as the crown prince. Li Heng, the prince, rarely has a talent, but this time he is talented, and after listening to Li Longji's praise, he was fluttering all over, as if he was in the clouds.

Regarding the sleeping bag, Li Longji was both curious and appreciative, and approved Wang Wei's request and allowed him to join the army.

Wang Wei was overjoyed and couldn't wait to sing loudly.

The next thing is very easy to do, first trial production of a few sleeping bags, after Li Changguo's experience, he is very satisfied, except for the warmth, there is no improvement, in the durability, lightness, convenience have been improved. Even if there is an extra sleeping bag, it can't add a few pounds of weight, which is a supreme blessing for soldiers who need to save their physical strength.

Li Changguo put on the fox fur experience, and it was much warmer, although there was still a gap compared to the warm couch, but it was not too bad. As long as a fire is lit, it will be able to go further, and Lee Chang Guoda is relieved.

The matter of sleeping bags is not very urgent, and it only needs to be transported to Dafeichuan before Li Changguo and them are dispatched. On the contrary, the sled was very urgent, and it was necessary to speed up the production, because the use of the sled required skill and the soldiers who went out to fight had to be trained.

Therefore, Li Changguo decided to make sleds first, and then sleeping bags.

The ordnance supervisor worked overtime to make sleds, and soon there were four or five, and Li Changguo decided to return to Dafeichuan to train the soldiers.

This thing should be done in the head, and no one objected to it, and it was unanimously approved.

On the day of departure, Li Longji, Li Linfu, Chen Xuanli, and the crown prince Li Heng all came to see them off.

Li Changguo's return to Beijing this time was just to report on the military situation and do some errands by the way, but he did not expect Li Longji to see him off in person, which was very unexpected.

Li Longji said with a smile: "Tubo is the thousand-year-old enemy of China, the Qin Emperor and the Han Dynasty have not been discussed, and the Tang Dynasty's pacification of Tubo this time is really a grand event in China. ”

The land of Tubo is the land of the Qiang people during the Qin and Han dynasties, the Qiang people are the ancestors of Tubo, the Qin Emperor and the Han Dynasty are helpless, if the Tang Dynasty pacifies the Tubo, it can be called a grand event through the ages, Li Linfu, Chen Xuanli, and Li Heng nodded heavily, and they agreed with this.

"Li Changguo, you let go of your hands and feet to fight, and if you fail, I will not hold you accountable!" Li Longji waved his hand angrily and said, "Success, it is the merit of the soldiers, and I will reward it according to the merits!" ”

The chances of crossing the rocky mountain are not great, even if it fails, it is reasonable, there is no need to investigate the guilt, as long as the soldiers do their best. If it succeeds, it will be a great joy, and Tubo will be pacified in one fell swoop.

"What else do you have to say?" Li Longji glanced at Li Linfu, Chen Xuanli, and Li Heng.

Li Linfu held Li Changguo's hand and said cordially: "General Li, the prime minister only said one word, if a soldier is hungry, only the prime minister asks!" ”

Li Linfu is ready to have a good relationship with Li Changguo, and he will be able to deal with Yang Guozhong in the future, so he will take the initiative to be courteous.

The Yang clan is powerful, and to deal with Yang Guozhong, he needs to borrow the power of Li Linfu, Li Changguo smiled and said: "Prime Minister Xie!" ”

Li Linfu was very satisfied with Li Changguo's response and smiled.

Chen Xuanli only said one sentence: "Fight!" Let go of the fight! ”

Li Heng told a few words, and this matter was over.

Li Changguo said goodbye to everyone and led the Longwu army out of Chang'an and returned to the front line.

(To be continued)