Fang Yizhi really didn't expect that the emperor had ordered people to make this thing that flew into the sky.

He also thought about how to fly into the sky.

However, he hasn't tried it yet.

Because he thought it was too difficult to fly into the sky, no matter what method he used, it seemed that it would not be possible.

It was like this thing like a Kongming lantern. He also considered it, and he knew that he had to make the Kongming lantern big enough to bring people to heaven.

He really couldn't think of the problem, how could he make a Kongming lantern that was several meters or even dozens of meters tall?

It is impossible to use bamboo to tread and paste paper!

He didn't expect to use cloth because it leaked.

Why doesn't this cloth leak?

He couldn't help but look at the big cloth ball above with curiosity.

As a result, new questions emerged.

Why is this big cloth ball made into a shuttle shape?

Taichang looked at Fang Yizhi's frown and thoughtful look and couldn't help but nod his head secretly.

This genius is different from ordinary people.

Ordinary people may suddenly sit in a hot air balloon and rise to the sky even if they are not excited, they may have a look of surprise.

But this kid is thinking.

There is a future!

I have to teach this kid about electricity quickly. Maybe this kid will really surprise him.

Thinking of this, he said directly to Cheng Jiashuo on the side: "Yaoguang, go and order people to prepare a few magnets, rolls of copper wires of different thicknesses, a few iron rods of about the same thickness as the magnets and some iron powder, and then bring a few pieces of glass over."

Uh, what is the emperor doing?

Cheng Jiashuo was stunned for a moment when he heard this, and then asked carefully: "Master, how big is the glass?"

Taichang said without thinking: "It's enough to install glass on windows. There is no big requirement for size, just a few feet square."

OK, this is simple.

Cheng Jiashuo quickly raised his hand to greet an experienced blacksmith and explained it carefully.

Taichang then asked: "Is there any place to do experiments here?"

Well, there is really no this one.

Cheng Jiashuo couldn't help but say embarrassedly: "Your Majesty, there is no place here for experiments yet. What do you need to do experiments? We will ask someone to prepare."

No.

Taichang said helplessly: "Then prepare a large table and some wooden squares that are several feet long. The size of the wooden squares is from two to five inches."

Uh, that's all?

Cheng Jiashuo recruited another experienced carpenter and explained it carefully.

At this time, the hot air balloon had risen to half a foot high, and the rope below to prevent the hot air balloon from flying away had also been stretched straight.

However, there are no longer four ropes under the hot air balloon tied tightly, and this time there is a strong rope under the hot air balloon.

Because Taichang wanted to try it out, can the man-turning fan push such a large hot air balloon to fly?

Actually, they have tried it once before.

However, last time I used a rotary handle to rotate the blades of the fan. The wind was not very strong, and the hot air balloon seemed to have no reaction.

This time it was different. He directly asked Cheng Jiashuo to install a set of gears that accelerated ten times between the rotary handle and the blade.

In other words, if a person turns the shank once, the speed of the fan blade will become ten times the original one.

Of course, in this way, the effort that people need to spend will become ten times the original one.

So, can such a human-powered fan push huge hot air balloons?

Cheng Jiashuo waved his hand directly to the strong man above, and the strong man turned the handle vigorously.

"Huh" a gust of wind sounded, and the hot air balloon finally moved. Although the speed was not fast, the hot air balloon was indeed pushed by the fan.

It is just because of the rope that the hot air balloon can only spin within a limited range.

Seeing this, Cheng Jiashuo couldn't help but clench his fists with excitement.

Fang Yizhi turned his head and stared at the gears and blades and pondered.

Uh, this seems wrong!

Taichang suddenly realized that the blade could not be installed on the hanging basket, because the hanging basket was obviously higher than the hot air balloon above.

This is obviously a hanging basket dragging a hot air balloon.

Fortunately, there is a rope tied to the hanging basket below, which is equivalent to being stretched between the rope and the hot air balloon. If the rope is not stretched, the basket will probably be blown over as soon as the blades rotate!

Thinking of this, Taichang quickly raised his hand and said, "Stop, stop, stop, close the fire to the minimum and lower the hot air balloon."

Seeing this, Cheng Jiashuo couldn't help but say curiously: "Master, what's wrong?"

Taichang couldn't help but say embarrassedly: "This blade cannot be placed behind the hanging basket. If the rope below was not stretched, the blade would probably have turned over as soon as it turned the hanging basket."

Well, this seems to be true.

The blades cannot be installed under the hanging basket, so where is the best place to install them?

Taichang and Cheng Jiashuo both stared at the hot air balloons above and fell into deep thought.

If you want to make full use of the thrust generated by the blades, it is naturally best to install it at the tail end of the hot air balloon.

The problem is that this hot air balloon is more than ten feet long. If the blades are installed at the end of the hot air balloon, it will be at least seven or eight feet away from the hanging basket. How can people turn the blades?

It’s more than 20 meters long, even if the rotation shaft is added in the middle, it won’t work!

Could it be that there is another hanging basket behind?

This is obviously unrealistic.

If you add a hanging basket later, it will be difficult for the hot air balloon to maintain balance. At that time, it will not be the hanging basket that will be overturned, but the entire hot air balloon will be overturned.

It seems that it can only be installed behind the fire-resistant copper tube.

Taichang pointed to the copper-leather tube and said, "Yaoguang, install the blades behind the copper-leather tube, and replace the gears with sprockets, and separate the upper and lower parts. The small ones are equipped with the upper parts and the larger ones are installed below, and then connect the two sprockets with chains."

If you change this, you don’t have to worry about the hanging basket turning over.

The problem is that the copper tube is made of thin copper skin, and it can’t bear such a big effort!

Cheng Jiashuo thought for a while, then carefully reminded: "Master, the copper skin is too thin and you can't bear such a big appetite. If it were replaced by a thick one, you would probably weigh hundreds of pounds. Then there would be only one person on the top."

This is indeed a bit troublesome.

Taichang frowned and pondered for a while, then suggested: "Do you think this is OK? Change it to a thicker copper plate at the back, and use copper skin at the front. Then use screws or rivets to connect the copper skin and the copper plate together."

In this way, the fire-proof tube will not be round.

However, it doesn't seem to matter whether it is round or not.

Cheng Jiashuo thought about it again, and then nodded slowly and said, "It should be no problem."

Just no problem.

Taichang said without hesitation: "Then change it quickly, we have to try turning and drifting up and down."

Cheng Jiashuo quickly bowed and said, "I understand."

At this time, Fang Yizhi had already gotten off the hanging basket, but he was still full of contemplative expression on his face.

Seeing this, Taichang couldn't help but smile and said, "How is it, Mizhi, how do you feel?"

Fang Yizhi heard this and hurriedly bowed: "The emperor is wise, but I really didn't expect that the emperor would make everything that flew into the sky."

Taichang shook his head slightly and said, "There are still many places to be improved in this thing, and it cannot be considered a finished product. The real finished product must be able to carry at least ten people, and it can also take off the rope and fly in the sky."

That's it.

Fang Yizhi heard this and stared at the hot air balloon above and began to ponder.

This kid is really interested in everything and likes to think about it carefully when he sees it.
Chapter completed!