The empty boat formation is home all over the world, and the light and shadow are behind the hot spring.

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Shevi is dead, but the man-made empty boat project won't stop there.

In other words, it is precisely because the discoverer of gum grin died unexpectedly, he did not have any relatives and children, and he did not even prepare a will, and the patent right on gum grin was directly converted to public use, and the use of this material flourished.

Although it seems that he is a little wrong to say this, it is true that in the analysis of many scholars, although Xiwei's death ruined everything personally, it made the application of gum grease advance by leaps and bounds, which is a favorable thing in the entire history of the development of Xihai civilization.

One person fell, and more got up.

In the short 100 years after Xiwei's death, after the appearance of the Holy City, the era known as the second technological explosion of the Shiohai people officially began. This was a revolutionary era for the use of gum resin, and the blueprints that had been planned by countless ancestors for thousands of years began to become reality at an astonishing rate...... Students in Quds Quds have no shortage of theoretical knowledge, and their biggest obstacle is the constraints of the environment and materials, and Gum Grin, a natural polymer material, is an excellent choice for making mechanical parts in the water. The white lump has a high degree of hardness after being soaked in a high-temperature environment, but unfortunately, the material still softens quickly at high temperatures, so it cannot be used in machines that need to withstand internal high temperatures, such as internal combustion engines, and can only be used for delicate and complex mechanisms.

A new era of the people of the tide has come in this state.

Despite hundreds of years of rough exploration, the man-made empty boat finally appeared in this world. The main frame made from the bones of giant beasts, the shell made of animal leather mixed with algae and fixed to the outside of the skeleton, and the joints and elevators sealed by glue grin, the operation room can be powered by hand cranking and foot pedals on a complex transmission device...... The designs of this series have all been transformed from blueprints carved into plastic plates into reality. The man-made empty boat, powered by manpower, uses a pump to pump seawater from a lift chamber formed entirely by splicing gum grease to control the ascent and descent of the overall structure, and multiple propellers mounted on the back and sides to control the trajectory. This is not a device that can be operated by a single person, but an empty boat that requires at least five or six people to cooperate with different functions to fully control, and they need to be responsible for different functional areas, such as steering, lifting, balancing, moving speed, etc......

Of course, there are also some people who have devised an ingenious design of an empty boat that uses domesticated animals to pull forward, and the air boat that can control the amount of buoyancy allows the animal to reduce a large part of the force used to fight gravity, and if the strength of a single animal is not enough to fully tow this simplified version of the empty boat...... So what if you use a few more animals to pull together? This idea eventually gave birth to empty boats similar to horse-drawn carriages, they do not need to consume manpower at all times, but use domesticated animals to pull the empty boat forward, but these animals responsible for pulling will be more vulnerable to other creatures in the ocean in the process of advancing, and not all creatures are like the people of the tide sea can independently adjust the internal pressure according to the external water pressure, their range of activities is also limited, plus domesticated animals are also considered a luxury, so most of the people of the tide sea can not afford it.

Interestingly, after more than 100 years of large-scale production of man-made empty boats, the price of man-made empty boats has dropped significantly compared to the beginning, so that a so-called nomadic tribe has even appeared among the people of Xihai. In the past, because of the dependence of the Xihai people on photobacteria, they had to have a fixed residence as the main breeding ground for photobacteria, and it was obviously unrealistic to bring all these photobacteria with them. In the history of hundreds of millions of years, the people of Xihai have developed from humble cave dwellings to villages that use anchor grass forests and sea forests to establish protective rings, but they have always been inextricably linked to this microorganism called photobacteria.

Nowadays, photobacteria are inseparable from the Shiohai people, and the Shiohai people are also inseparable from the photobacteria, and the fate of the two species has been closely linked.

However, the appearance of the empty boat seems to have brought a touch of change to this contradictory situation, because the people of Shiokai were surprised to discover something...... Although it is impossible to carry all the light bacteria in the breeding ground, it can be loaded with an empty boat, and as long as you bring some more empty boats, you can also bring the food and various tools stored in the village. As a result, when the price of empty boats fell sharply and the safety and stability were getting better and better, the nomadic tribe of the Xihai people was born. They abandoned their fixed dwellings and instead used empty boat formations to drift in the oceans...... Some of the most frantic nomadic tribes are said to have stripped venom glands from the carcasses of some creatures to squeeze out toxins through hollow pipes after stabbing their targets, a way that is far better than expected against creatures that do not need to be eaten or are very dangerous and difficult to destroy by other means.

If you want to say that the most terrifying creatures in the Lanxing Ocean, it is undoubtedly the Stygian Thorn, but the primitive body structure allows them to secrete the most terrifying biological poison on the Lanxing, this venom mixed with thousands of different toxins is simply incomprehensible, and even a small drop is enough to make a giant beast with a body length of more than a hundred meters die without resistance in a short period of time. Of course, not everyone can get their hands on the toxins of this dangerous creature, and most of the Shiokai tribes only use toxins extracted from the more common poisons.

Sedentary tribes cultivated a lot of gum grass to provide enough gum grass resin, while nomadic tribes hunted huge beasts to provide enough leather, tendons and bones, and the frequent trade between tribes gradually formed a virtuous circle. With the advent of nomadic tribes, airboat technicians even became the most sought-after profession among the people of the tide for a time...... No one can guarantee that the man-made empty boat will not be damaged during the long journey, and you can't just throw the entire empty boat and the supplies on it in place because of the damage of a few parts, right? As a result, the nomadic tribe was bound to hire some technicians who knew something about the structure of the man-made airboat to be responsible for maintaining it after it was damaged, and the new profession was completely in short supply for the first few decades, and these airboat technicians were sometimes on a par with the elders of the tribe.

Of course, after a long period of development, these situations gradually stabilized, and soon a profession called the traveler emerged. They are explorers, pioneers, and some are scientists themselves, usually in small teams of several people, using man-made empty boats, a vehicle that can ignore the topography of the seabed. They are the main source of up-to-date information between the different villages, and they are also responsible for helping the Holy City explore the resources of various places, and it is undeniable that these travelers sometimes find treasures of high value, and this temptation attracts many young people to the industry. Of course, this kind of work is not so easy, and many more travelers are lost forever in this ocean than the few who make it to fame.

Behind all this prosperity, there is inevitably a brutal dark side. There is no fire in the ocean, and the Shiokai people have not found any other stable heating method, so this large underwater hot spring has not stopped for thousands of years...... It was the place where Sivi died that it became the main place for the shaping of the gum grass. However, as most people know, the heat of hydrothermal vents comes mainly from the heat of the planet's subsurface, which is very close to the principle of volcanoes. The Shiokai people are not omnipotent, they are not resistant to high temperatures, so it is very dangerous to approach these almost boiling waters, and don't think that as long as you are careful not to get cooked, these hot springs gush out of more than just water, there are large amounts of highly toxic substances such as sulfides near these black chimneys...... If you want to use these hot springs to cook food at the bottom of the sea, you need to be prepared to be poisoned. Short-term exposure may not be a big problem, but the people of Shiokai who work here for a long time as firing workers will inevitably contract various diseases due to inhalation of these highly toxic substances. Like miners working in a land coal mine, they risk their lives and suffer from all kinds of diseases, exchanging their physical strength for the payment of their labor.

Death Death Death ...... When a group of people dies, a new group of people will come for that extremely high reward, but even the highest compensation cannot make up for the grief of the loss of life, and this is the reason why Xuefeng finally joined the Truth Spreading Society: his parents became workers working near the hot spring in order to give him a better life, and the strong physique and hard exoskeleton armor of the Shiokai people could not resist this long-term erosion, and they all died early due to illness. Even though they were all voluntary, Yukikaze still felt a deep grudge against it, if it weren't for the fact that the so-called god forbade the use of those convenient electric heating equipment in the Holy City to process gum grease, then they wouldn't have encountered such a thing at all, right? That's right, it's all the fault of the so-called god, and it's all because the god made this rule......

He didn't hate the Holy City, all he wanted was to remove the restrictions on technology so that the same tragedy would not happen again.

The people of Shiokai do not cry, they can only express their deep sadness with trembling voices and painful expressions. After listening to this story, everyone under the artificial sun fell silent, even the elders who were so angry by Yukikaze's behavior that they didn't know what to say. Xue Feng slowly let go of the finger pressed on the antimatter bomb detonator: "So, what is your final decision?" ”

"Is that why you want to change the rules of the Holy City? What a touching story, so ......" In the dazzling light of the artificial sun in the holy city, the people of Shiokai heard the god named Xinglan say......

"I won't change it, you can press that button if you want~"

(Thanks to the 100 starting coin reward of "Rabbit's Qiluno", if you keep the daily update, the current number of chapters is exactly the result of a year...... Of course, that's impossible~)