In order to supply the food needs of such a large number of non-agricultural population, it can be said that the production and transportation of Datang have reached the greatest opening.

The new Grand Canal built by Emperor Yang of the Sui Dynasty was very strong in support of the Tang Dynasty, and without these canals and the delivery of these grains, it would be impossible for the Tang Dynasty to establish a national capital in this place.

Without the national capital, there would be no military force to stop, and without military force to stop, it would be even more difficult to support the north.

Because more grain needs to be transported, and the whole transportation problem is one of the biggest problems in the entire Datang.

Fan Jingjing thought about it, air transportation is still the best way, so that when others can't steal your vehicle, there is no way to grab your goods, and even thieves won't have it, but they are afraid that someone will shoot with a bow and arrow at a low altitude, so this means of transportation must be kept in a position that is not too high or too low.

It is necessary to make the bow and arrow unable to shoot without arousing the emperor's vigilance.

The problem is that in this era, if something can fly in the sky, it will definitely arouse everyone's worship, and Fan Jingjing will be able to make a new religion come out, which can be spread more than Buddhism and Taoism, Fan Jingjing thought that if this is in the era of science and technology, it is estimated that a demon religion will be formed.

But in this era, people have great hopes for the sky, and think that there is life in the sky that can overlook the world, and when they are in a good mood, they can give you blessings and make your life well.

When the mood is bad, use thunder and torrential rain to kill the people, and even if the current drought is not dealt with properly, there is a central court that can slightly allocate materials from other places to the Chang'an arid area, which will make a lot of people not very good to live.

Instead of being afraid of coming and going here, it is better to solve the easiest way, and with this air transportation mode, it is even easier for Fan Jingjing to run out, of course, if there is this air transportation mode, you don't have to think about it, you know, the emperor will definitely ask him to hand over this technology immediately.

It is impossible for Fan Jingjing not to hand over this technology, but it is not difficult to have technology for the imperial court, at least Fan Jingjing originally wanted the emperor's children to study it, because the future of sky flight is not simply using balloons, whether it is using propellers or jets in various forms of aircraft, there is a very large space for development, and even can fly to the moon and fly to space by flying.

But this kind of research is expensive.

This is a behavior that people in the age of science and technology have proven, but what Fan Jingjing can do with her simple head now is probably only flying with balloons, flying with balloons cannot fly to the destination at one time, and there must be many landing sites in the middle, otherwise people may change a lot.

Even the weather can affect the flight, and you must choose the stable weather to be able to fly, so the whole flight rules must be established from the beginning.

Otherwise, the entire flight action will be stacked with the lives of many people.

Although Fan Jingjing wants to engage in such a thing as flying, she doesn't want many people to sacrifice their lives to prove the value of flying.

By landing through the flight department, the cattle could not be transported alive, but they could be slaughtered and transported quickly by flying.

Of course, in this era of flying in a balloon, it is almost impossible to fly at a flight speed of 800 kilometers per hour.

But if you want to fly at a speed of 20 kilometers per hour, you can still do it, and this 20 kilometers is still a straight line transportation rather than a curve transportation.

Twenty kilometers in a straight line may be seventy kilometers or eighty kilometers on land, and there is no resistance.

You must know that in this era, land transportation, even if it is used by bicycle, is only about ten kilometers per hour, and a sergeant who rides a bicycle with all his strength can be twelve to fourteen kilometers per hour, which is already the result of making a person's body give full play.

In this way, air transport can prevent the problem of robbery, and there is no problem of rails being stolen.

During this period of commercial exclusivity, you can definitely do the best business, and you can also help deliver some goods and collect some freight, provided that the flying vehicle must be stable.

There are several ways to get a spaceship into the sky, and one of them is commonly known as a hot air balloon.

There is another way to use propellers, and the two can basically use electricity, that is to say, they can be operated with the Thunder Lotus Shed, but once it is taken by the emperor, basically the Thunder Lotus can't be hidden.

Or the Thunder Lotus Show, the emperor has known it for a long time, but the application of the Thunder Lotus Lotus is not very clear to the emperor, and he does not require that the Thunder Lotus Blossom must be in the royal family.

After all, in the eyes of the emperor, the Thunder Lotus is just a plaything.

But if it is applied to the balloon to cause the cause of flight, it will definitely be required by the emperor, but now there is no way to mass produce the Thunder Lotus Flower, it seems that the researcher has to be urged, if the research of the Thunder Lotus Tree has progressed, it can be processed.

If there is enough power supply to the spaceship, then the carrying capacity of a person can be increased a lot, after all, the controller of each spaceship is a person, this person may be one or two, if one or two can only transport, very few things, then it is similar to a person walking on land.

It's just that these two people will be very tired when walking, and the consumption of sitting in the air will not be too small, because the air is very cold, and the calories consumed in the air, as well as the restrictions on no way to move, will make people lack exercise, and they must exercise for a long time to maintain physical fitness on land. Otherwise, flying in the air for a long time will cause great problems.

"Is there any news from the Thunder Lotus Pengzi's side, and what is the current business status of the Thunder Lotus Pengzi?"

"Two days ago, new news was sent over, and now when the Thunder Lotus Seeds are cultivated and planted, more than 30,000 Thunder Lotus Seeds have been harvested, and then in the whole process of storing calls, we have gone through more than 50 experiments, and almost all of them have failed.

There is no way to fill the Thunder Lotus Flower, and it can even cause injury to personnel, but the last few experiments have been very successful, and the injured personnel basically did not follow the rules themselves, and then caused their own injuries. ”