As the dark period passes...

No, before the dark period passed, with the evacuation of the wizard guild, Banana went to Nanhe County alone to clear the steps and mountain city here, and everything went into the regular state.

The senior management of the Shancheng City had long concluded that this round of Light Demons is likely to come and gain a foothold on land before the two-month-long Dark Period.

Internal and external troubles, time waits for no one, so how dare you delay it?

With the big investor Yuan Jingjia as the core, and under the instruction of Yuan Jingjia, Liang Kai as the core, a rough but very practical laboratory system was quickly established-

A mechanical laboratory is surrounding the riverside lathe; there are currently several topics, including power saws, improved textile machines, gun barrel bullet casting, large crossbow catapults, etc.

The smelting workshop that produces hot air balloon oil furnaces and rail mine cars is a metal laboratory; key topics include magic quenching, magical casting molds, and large cannon body casting, etc.

Magic Optics Laboratory, the topics involve telescopes, microscope grinding, mirror focus, primary optics, and separation spectral observation;

In addition, there are the previous gunpowder chemistry laboratory, the engine laboratory just now, and the relatively confidential energy storage alloy laboratory exclusively owned by Yuanjingjia.

Of course, there is also the current air chemistry laboratory.

In terms of name, it is to study hydrogen-like helium balloons that can float without heating. The real purpose is to classify air and conduct preliminary chemical research.

Hydrogen-like helium balloons are not that easy to make. Before organic polymer materials are found, it is difficult to completely seal the balloon airbags.

At present, all laboratories are mainly practical, and it is obviously difficult to explain the significance of technology accumulation to these people, so Liang Kai’s lies were lying with kindness.

The key is to compile classics for academic teaching. There is no problem with the one-star textbooks in primary schools. When junior high school is in contact with chemistry, the accumulation of knowledge is not enough now, so some hard products must be obtained.

But the speed... was a bit faster than Liang Kai expected.

I climbed up to the cat again, soared into the sky and climbed over the city wall, and came to the air chemistry laboratory next to the wall and the hot air balloon testing area.

A group of elemental masters with low grades surrounded them, talking nonsense, clamoring like ducks.

Liang Kai quickly waved his hand, signaled them to whisper, and said one by one. He quickly understood the whole story.

If what they said is true, these people have really achieved remarkable research!

First, there are two small-mouthed cloth bags, mouth-to-mouthed covers, and then inflated. I don’t know how many times I have done this hot air balloon, so it’s not difficult at all.

Then, an air elementalist stood in front of the cloth pocket and cast a spell on one of the voids and muttered the words: "Suffocation!"

The wind could be heard faintly in the pocket, and there was obviously some kind of convection.

Quickly separate the two cloth pockets, aim at the torch that was prepared early, and compress.

"Hula..." One of the torches suddenly jumped vigorously; while the other one quickly extinguished silently.

Needless to say, the one that aids the combustion is the oxygen in this world; the one that extinguishes the fire... is other gases in this world except oxygen.

The so-called suffocation technique is a magic that quickly drains oxygen around the target body.

Liang Kai also noticed that after performing the magic, one of the two pockets floated slightly and the other slung slightly. It seemed that the oxygen density in this world was slightly heavier than that of the air.

The same experiment was soon conducted again, but this time it was not suffocation, but ignition-assisted technique. A sub-magic included in the large wind control array of the smelting workshop.

After casting the spell, everything is just reversed from before. The cast pocket is heavy, the other pocket is light; the cast pocket is fueled by the cast pocket, and the other pocket extinguishes the fire.

It seems that suffocation and ignition are just the same magic, one drives away the other and collects different effects.

【Tsk tsk tsk, it is really convenient to develop science in another world!】

The live broadcast room was full of envy, jealousy and hatred.

It's true that the research on the earth has been used for decades or even hundreds of years. For people from other worlds, they have actually known about all this before and even used it all, but they lack scientific understanding. Once they are given a tip, they will be like window paper and will be broken.

Moreover, it is unknown how much effort the scientists have spent on separating the colorless and tasteless air on the earth and how many brain cells have been consumed. In another world, it is a magical matter.

How can this not make people envious, jealous and hateful?

Many people even vaguely feel that if scientific ideas can spread in other worlds, if science can gain a foothold in other worlds, then the speed at which the world can climb the science and technology tree will most likely be far more than that of the earth!

The same thing, magic is so convenient!

Speaking of this, the experiment is not over yet...

The separation of oxygen was completed in a simple and simple way, proving the existence of oxygen. On this basis, the separation experiment added another magic.

What magic?

Wind control technique.

The big pocket pulled out oxygen, and let the wind control technique take another sip, which quickly shriveled.

Liang Kai estimated that the so-called wind control technique should control the gas with the largest content in the air. Because only in this way can the highest efficiency. The corresponding nitrogen on the earth is, so I don’t know what is the other world.

After pumping all the oxygen and nitrogen, a little bit of it was left in the cloth pocket. A bunch of people started to squeeze and squeeze, and finally used a pump to pump the accumulated gas out and poured it into a balloon.

One tube is not enough for two cans, two tubes are not enough for three tubes... The balloon gradually filled up, and when he let go of his hands, he flew away lightly. These accumulated gases are probably still a mixture, with multiple gas residues in it, but the overall density is less than that of the air.

The elemental master in a circle looked at Liang Kai proudly. The master said that if there is gas, you can let the balloons go to the sky without heating. As expected, this is true, and they separated!

Liang Kai was a little dizzy and pointed at the sky tremblingly: "Then, what is that?"

Netizens in the live broadcast room were also asking wildly.

The elemental master was puzzled and raised his head to the sky. Isn’t that the balloon that the master said was lighter than the air?

"I'm talking about outside! The one with air!"

Is that clear, it is clearly the balloon on the earth? It is smooth and round after inflating, without any seams. It must be made of rubber, plastic, or PVC.

Suddenly seeing such a modern thing floating in the air, Liang Kai instantly felt like he had traveled back.

"Is that the egg membrane of the rubber lizard?" Several elemental masters looked at each other, as if they didn't understand why Liang Kai was fussing about this thing.

"Gum lizard? Egg membrane?" Liang Kai calmed down and asked carefully before he understood what was going on.

It is indeed not a balloon, but an egg membrane of a monster called a gum lizard, which is the membrane between the egg skin and egg white. However, the egg membrane of the gum lizard is very tough and elastic. The cutters discharge the egg white, and the remaining part is dry, which is the balloon in front of you.

It is even more powerful and durable than the Earth's balloons, with ball movements wrapped in follicles and leather sewn on the outside, similar to the football basket row on the Earth.

"Why haven't you heard of it before?" Liang Kai was puzzled.

"There are no rubber lizards produced near the mountain city. However, there will definitely be more rubber lizards in the rainforest plane in groups," he said.

Liang Kai: "..."

Recently, he has been working hard to conduct research and is obviously ignorant.
Chapter completed!