The fabric was sewn by specially invited tailors and tied with ropes.

The first time I was rusty in the craftsmanship, no matter how good the design was, it was a messy feeling of patches and patches.

However, there are still basic shapes and complete configurations.

Just like flying a kite, two soldiers supported the ring-shaped umbrella ring of the air inlet, and a mage blows the wind into the umbrella cover as required by the beam, gradually making it round and full.

Thank you for this is a magical world! Human powered blowers are available at any time, otherwise it would be really not easy to support them.

The balloon with a diameter of three or four meters gradually became round and slanted, and then the beam opened and inserted the source crystal under the umbrella circle, activating the magic lamp.

A bright ball of light shone on the square. Everyone was stabbed and narrowed their eyes.

[Wait!] Suddenly someone in the live broadcast room shouted, [No need to try it, it is impossible to succeed!]

Highlighting and top-top is the expert's speech.

When I looked at the name again, Sheldon obviously changed it because of his admiration for a certain scientist, and everyone around the world knows the source.

This guy was just two days ago. He was shocked in the live broadcast room to watch romantic action movies and study XXOO behaviors in another world.

Later, many netizens checked the information of this guy and found that he is a Chinese American, but his surname is not Xie. Sheldon is his English name.

This guy went to college at the age of 11, got a Stanford PHD at the age of 15, worked in Lawrence Berkeley National Laboratory for several years, and then went to the CERN. He was attracted by the China-made large collider three years ago and was hired to be naturalized in China, becoming one of the core members of the expert group.

This life trajectory is really like Sheldon, and even because of him a new word...

[Why can't the funny beauty succeed?] Some netizens asked curiously.

That's right, it's just a funny beauty, oh, a Chinese beauty.

While speaking, the magic lamp had been put into the umbrella circle. At the same time, the mage stopped blowing at Liang Kai's request.

Then... the balloon begins to tilt, leak, and pour at a speed visible to the naked eye...

Fortunately, the umbrella holder reacted quickly and rushed out with a magic lamp. If the umbrella cover falls into the lamp, it will burn.

【It's a heat exchange! This magic lamp is very bright, but do you feel it is hot?】

He was stunned for a moment. Liang Kai shook his head. It was indeed not very hot.

"But if you put your hands in, you will get burned..."

[The internal energy is high, but there is no heat exchange. If there is thermal convection, you can see the air twisting like a fire above... You can move this object around casually, without feeling the heat at all, and the radiation and conduction are obviously extremely poor.]

[The principle of this magic lamp should be similar to vibrating air molecules, which are heated to a high-temperature ionic state to emit light. There is no sign of air being stimulated and expanded when the lamp is turned on. It may be that the air particles are locked and the density remains unchanged.]

[Tsk tsk tsk tsk, Maxwell demon was realized like this, it's so unscientific!] Sheldon ended the explanation with a sigh.

【What the hell is Maxwell demon?】

[You know everything except Maxwell demon?]

[I really returned the teacher to the teacher when I went to school, 2333…]

[Sure enough, the college entrance examination is the peak of my intelligence in life!]

The live broadcast room was clamoring, noisy, and noisy. In the end, a group of Zhihu experts and experts stood up in time and made an emergency popular science so that everyone could roughly understand what was going on.

There are three ways of heat transfer: conduction, convection and radiation.

Hot air balloons need to have a heat source to dissipate heat and heat the air to fly. But this magic lamp separates all heat transfer methods and converts almost all heat into light. Energy-saving lamps similar to the earth, whether the light is hot or not... how to fly?

As for Maxwell, it is Maxwell, so he wrote the thinking experiment proposed by the guy in Maxwell's equations. Assuming that there is a very small elf who can distribute random thermal motion particles into a certain phase grid according to a certain order, the second law of thermodynamics will be inaccurate and the perpetual motion machine can be produced.

No one pays attention to the latter, and you may not understand it even if you pay attention, but the first half...

[Looking and wiping? Like an energy-saving lamp, it's so scientific? It's so unscientific!]

[6666, I feel it is necessary to re-examine the technology tree in another world.]

Tsk, isn't the magic lamp good? Liang Kai frowned.

The expert group is also discussing-

[In this case, either the magic array is changed, and there is convective conduction; or the array is changed, and there is convective conduction, such as a fireball...]

[No, the fireball technique does not have air distortion and lacks radiation conduction. It seems that air will be extracted during firing. During the island war, a fireball can boil the fishman's protective sea water, which is probably related to the condensation and compression of heat.]

【It may also be that the water in the blue world is lower than heat, right?】

[Or, do you still remember the fact that the divine clone is more watery and sticky? The water in the entire sea area has become non-Newtonian fluid. The stickiness can be changed, but it can be changed even more than heat?]

[I suggest that we first determine the energy contained in the source crystal block by measuring the light intensity and duration of the magic lamp... You should know that the energy of one kilowatt-hour of electricity is not much different from the TNT equivalent, but if the electric power is bright enough for a few minutes, the TNT will be exhausted in half a second.]

[This magic lamp has a very high energy utilization rate, which means that the stored energy may not be as much as expected. This thing is not cheap, right? If the energy is insufficient, it will be difficult to support the balloon to be hung in the air for a long time...]

[There is a prerequisite for determining the energy of the source crystal...energy conservation. Are you sure that the world follows the laws of thermodynamics?]

[It should still be conservative, right? It is too easy to get buggy if it is not conserved. The void produces energy, and it is unimaginable that a stable world will be born...]

Experts say everything.

As for netizens, they were even more confused-

【What, what, what, what are you talking about?】

[Specific heat? Non-Newtonian fluid? One kilowatt-hour of electricity and TNT equivalents... Ahhh, I really regret returning all the knowledge to the teacher.]

[Key points, pay attention to the key points! I mean, island battle? Fishman? Protecting the sea water? God's clone? Oh my god, what did we missed yesterday?!]

Everyone talks and doesn't agree.

Liang Kai smacked his lips and looked at the two secretaries and soldiers of the patrol camp: "Have you taken all your things?"

Since the first plan is not working, and it takes a lot of effort to correct it, just try the alternative plan.

Several people looked at each other with a look of disdain.

When asked, Liang Kai ordered the oil material.

That's right, there is oil in another world, which is similar to that on earth. It comes from animals and plants. It can be burned or eaten. Without magic, it can be done with traditional ignition.

The reason why I don’t use it is that the magic circle is lighter, longer lasting, and more pretentious!

"The warehouse owner said that oil is a war preparation material. Now the mountain city is so critical that it cannot be used easily."

That's right. Swords, bows and spears need to be maintained with oil. Demon attacks can be spread with oil and fire. Many knitted fabrics need to be soaked in oil to increase toughness before they can be used...

However, Liang Kai was able to fully develop new equipment with Sanfans, and it should be fine if one barrel or two barrels of oil was said to be fine.

As for the oil stove, I got it. It was more than one person tall, two or three people wide, and a huge furnace with such a majestic cauldron, and it took a lot of effort to move it. At that time, Liang Kai was wondering what they were doing, and his feelings were oil stoves...

【Damn, if this thing can go to heaven, the hot air balloon will really go to heaven!】

[Boge, you have low emotional intelligence? You don’t get money and send someone to get things, but don’t come to your house in person. If you don’t have any sincerity, it would be strange if someone gives it to you...]

【Damn, I just said now, what have you done long ago!】

[How can I know the same virtue as people from other worlds?]

Liang Kai was speechless when he thought about it carefully and found that this was the truth.

Fortunately, the warehouse is not far away, just below the Star Tower. This is the wall behind the Star Tower.

I checked out what supplies were received, what didn’t, and what was not, but the quality was not up to standard. Then Liang Kai took a few people, carried a new account book and a few kickbacks, and took them in person.

However……

"Sorry, you want these war preparation supplies. They will not be supplied in extraordinary times." The head official said with contemptuous eyes towards the sky.

It is useless to wear out the mouth, and it is also not easy to stuff money. Asked him what he wanted and got an answer: "What do you mean? I am a righteous person and do things seriously. Is there any problem?"

【It’s not a matter of money, it seems not a matter of attitude.】

【What should I do if I do...】

Netizens were worried.

【Or, go find the Speaker?】

【Just kidding, just for this?】
Chapter completed!