In the end, Kong Ming's lantern hung the four words of Feicheng Ping'an in the sky, and the two words of refueling were drawn by Ye Zhi with two big forks to indicate invalidation.

Looking at the Kong Ming lantern flying away from the sky, Ye Zhi smacked his lips, "This thing is still a bit dangerous, in case it really falls on which thatched house......

"So I can only put it in the area of the moat, and if it falls into the water, it won't ignite." Yue Wanqiu explained, "Besides, there are soldiers patrolling here day and night, and if they find a place where there is a fire, they will put it out in time." ”

Ye Zhi nodded, "I didn't expect you to be a prince and still know a lot about the lives of ordinary people." ”

"I am indeed a little different from other princes." Yue Wanqiu put her hands behind her back and also looked at the sky full of Kong Ming lanterns.

It is a night when the moon is round and bright, and the moon stars are sparse, so there are not many stars in the sky, but because of the Kong Ming lanterns put by people, they are like stars dotting the sky, which is exceptionally beautiful.

Ye Zhi and Yue Wanqiu stood side by side.

In this case, under this view.

Ye Zhi used to think that it was a very romantic thing to light up the sky full of Kong Ming lanterns, but today, in addition to a hint of romance, there is also a faintly heavy thing in it.

And this prince who asked himself to put Kong Ming's lantern seems to be really different from other princes.

He has really experienced the sufferings of the people, he is willing to put down his body and pray for blessings like civilians, perhaps, he is not letting go of his body, because he does it too naturally, so Ye Zhi feels that he seems to be the one who has always held his figure.

Ye Zhi looked at the Kong Ming lantern that was gradually flying away, and suddenly patted his head, "I thought of it!" ”

"What comes to mind?" The later autumn turned his head.

"I've been thinking about what I can do here instead of horse-drawn carriages, which are the fastest means of transportation, and now I think about it." Ye Zhi was vaguely excited.

In modern times, the more common modes of transportation are road, sea, air and pipeline transportation, except for pipeline transportation is always used in some special places, such as transporting natural gas and some special liquids, etc., among which air transportation is the fastest, followed by road, sea transportation is the longest.

Originally, in modern shipping has been very slow, in ancient times, affected by the development of technology, shipping is slower than modern shipping, an experienced sea ship to go to sea, it takes more than a month, not far away.

And road transportation is only on the road, Ye Zhi once thought about whether to build a car out, but then gave up directly, which is as difficult as going directly to the moon.

Not to mention air freight, cars can't be built, airplanes are simply myths!

And just now, she suddenly thought of a similar product of Kong Ming lantern-

Ye Zhi pointed to the Kong Ming lantern in the sky, "That's it!" ”

Yue Wanqiu was stunned, "You mean, you want to build a lot of Kong Ming lanterns and send people and goods to them?" ”

"That's right!" Ye Zhi nodded, "It's hard to control a lot, it's better to build a big one, and then hang a basket that can hold people and goods underneath, so that we can go to the sky!" ”

That's right, it's a hot air balloon, and now it seems that the most suitable and fast is a hot air balloon, if you can make a hot air balloon, then she will not live in vain in modern times!

Yue Wanqiu was very interested in her idea, but she couldn't help but be worried: "It's very dangerous for people to go up, what if you fall down in mid-air?" What if it burns halfway through? How do you change the direction of making this thing to the sky, do you want to drift with the wind? ”