After the first generation of hot air balloons researched by Mao Wenlong was successfully ascended to heaven, it was immediately applied in the army. After the balloon is lifted into the air, it can be used as a high-altitude reconnaissance, as long as two scouts go up and observe with a telescope, the realm of 'climbing high and looking far' is truly realized.

In the experiment, this method can detect almost any enemy situation within three miles without dead ends. It is conceivable that when the two armies were fighting, there was such a hot air balloon to reconnoiter in mid-air, and if the enemy army had any abnormal moves, it would not be able to escape the eyes of the Dongjiang Army.

It can be said that with such a thing, the Dongjiang Army may be ambushed or taken by surprise in the future.

The gunpowder package is still under development, and if the explosives package is also developed, Mao Wenlong can use dozens of hot air balloons to rise to a high altitude to bomb the enemy indiscriminately. This is the greatest lethality of hot air balloons.

Mao Wenlong has been bored in Mao's mansion for nearly two months, and finally got the first-generation prototype of the hot air balloon out, and he should also take a good rest.

In the process of making hot air balloons, Mao Wenlong also realized the wisdom of the ancients. It can be said that the ancients just lacked some tricks and experience, and many times Mao Wenlong just proposed a principle, and the craftsmen behind him could completely manufacture it according to his requirements.

This made it a lot less effort for him to make a hot air balloon, and the only regret was that the current technology could not make a steam engine. If it is time to make a steam engine, Mao Wenlong can be proud of the world.

However, at present, it is enough to have a hot air balloon, and Mao Wenlong is not in a hurry about the rest of the matter, and he will also leave the future improvement to those students who specialize in this to do.

People's imagination is always endless, Mao Wenlong has always firmly believed in this, he believes that as long as those students are willing to work hard to study, the future hot air balloon will be more and more advanced, and even surpassing future generations is not impossible.

Today is a rare good day, the sun is high, adding a touch of heat to this cold winter, making people a little lazy. After lunch, Chen Lan and Hong Ziyan pulled Mao Wenlong to take a walk in the city.

Mao Wenlong, who had nothing to do, agreed to the request of the two, and was ready to accompany the second daughter to press the road, and by the way, he found the scene that was about to be forgotten in his mind.

With only Haoda and Haoxiao, and more than a dozen guards who changed into ordinary people's clothes to protect them in secret, Mao Wenlong walked out of Mao's Mansion with Hong Ziyan and Chen Lan.

Afternoon is a good time to relax, and this is the hottest time of the day, so the streets and alleys are crowded with people!

"I didn't expect it to come out for two months, it's become so lively here!" Mao Wenlong, under the snuggling of the two women, slowly walked with the crowd before. Looking at the bustling street market in front of him, he couldn't help but sigh with emotion!

Chen Lan said with a smile: "Xianggong, if you don't leave the house for another two months, I guarantee that you won't recognize the streets and alleys here by then." ”

Mao Wenlong chuckled and nodded: "Indeed, the changes here are faster than I expected. ”

A trace of pride appeared on Hong Ziyan's face at this time, and she raised her head slightly as if to ask for credit: "Of course, after all, my father managed it single-handedly at this time, and he is now busy until the middle of the night every day for the development of Xi'an City, and I feel distressed when I see it!" ”

Mao Wenlong is very acquainted, he vigorously upstaired Hong Ziyan, and said with a smile: "Your father is indeed indispensable, if you want any reward, just say, as long as the minister can do it, he will definitely satisfy you." ”

Hong Ziyan suddenly had a shy look on her face, and then quietly glanced at Chen Lan. The latter gave her an encouraging look, and then nodded to her, as if to cheer Hong Ziyan on.

Hong Ziyan took a deep breath, then faced Mao Wenlong and said seriously: "Xianggong, my sister and I want to inherit the Mao family for you......"

Hong Ziyan, who was still serious, but as soon as she spoke, she began to be shy, and then the more she spoke, the quieter she became.

Mao Wenlong was slightly stunned, and only reacted after a while, he was not in a hurry, but the two women were in a hurry. Mao Wenlong has never had children, in fact, because he took into account the situation of having no fixed place before.

As for the present, it is very different, the strength of the Dongjiang Army is completely capable of ignoring the existence of the imperial court, and it is also fully capable of ensuring the security of the territory it currently occupies. Therefore, it is not impossible to have children, but at present, he still hopes to live a leisurely life, and it may be that Mao Wenlong is still subconsciously controlled by modern thought, so he is not in a hurry to have children.

But what is this for him? But for Chen Lan and Hong Ziyan, it is a big deal, if there are no heirs after a long time, then these two women will have to bear rumors from all sides.

Especially Chen Lan, she has always been silently bearing it by herself, and she has been with Mao Wenlong for so long but has not given birth to a child in the Mao family. Although the generals outside didn't say anything clearly, from the expressions of relief on those guys when Mao Wenlong took Hong Ziyan, Chen Lan could already see that they were actually disgusted with themselves in their hearts.

"You can have a baby at any time, or just wait a little longer, and don't rush to meet at this time!" Mao Wenlong didn't see the disappointment on Chen Lan's face, he didn't care.

Hong Ziyan was obviously much braver than Chen Lan, she shook her head and said resolutely: "No, this matter must be done as soon as possible." If you can afford to drag it out, we can't afford it, and if the woman who is you fails to pass on your ancestry, then we are ominous people and will be spurned by the world. ”

I didn't expect the matter to be so serious, Mao Wenlong was stunned for a long time, and then he remembered that it was now a damn feudal dynasty.

Understanding the seriousness of the matter, Mao Wenlong said seriously: "Indeed, thinking about it, I have ignored this matter these days. ”

Mao Wenlong turned to look at Chen Lan, tightened his hand, and whispered to her, "Let you suffer." ”

Chen Lan silently shed crystal tears, and it seemed that all the grievances were released in Mao Wenlong's bland words.

"Alright, alright, don't cry, or we'll go back and make people now." Mao Wenlongtian said shamelessly on the street.

Hong Ziyan and Chen Lan immediately turned pale with fright, wouldn't it be a matter of ruining their reputation to do this kind of thing in broad daylight.

Seeing the two girls turn pale with fright, Mao Wenlong felt a little unbearable, but this damn feudal thinking did make Mao Wenlong quite helpless. Things are always relativistic, and with good things comes bad ones.