Half a month has passed quickly, and the 8,000 bases on the Rainbow Star have become huge new towns!

The tall walls and the buildings are like a city where human technology and retro are combined, and all the people in the city are doing things, and the exploration of the rainbow star has been initially launched.

A large number of animal and plant specimens have been collected, various newly discovered elements have begun to be analyzed and tested, geologists have begun to become familiar with the unique geological structure of the rainbow star, and more and more people have begun to get their work on the right track, and many people have gone from not knowing what to do every day. It's very fast.

Chen Mengchuan has been paying more and more attention to the Rainbow Star in the past half a month.

On this technologically backward planet, the diversity of species exceeds all expectations.

Not only have many species very similar to the earth have been found, such as crocodiles, tortoises, sea turtles, birds, cats, and a large number of insects. Species that are completely alien to humans have also been discovered, with more than 30,000 species recorded in the database.

The discovery of the biological field also includes 392 populations of intelligent life.

The Human Federation judges the population of intelligent life on the rainbow star that lives in groups or alone, using two hard indicators: whether it can create and use tools, and whether it has mastered fire.

The intelligent life population is also subdivided, from the primitive intelligent life population to the primary scientific and technological civilization life population, and there are 6 levels of stratification.

There are more than 30 life populations that have reached the primary technological civilization!

All of these life groups have a high level of social division of labor, as well as writing, language, music, art, and processing technology.

Among them, the "Lizardmen" population on the Tropic of Cancer on Rainbow Star is the most advanced, this civilization has developed to the strange technology tree of the primary steam age, and there are more than 2,000 large "Lizardmen" countries on the entire Tropic of Cancer.

These lizardmen of different countries have armies, libraries, music venues, markets, schools, and countless workshops in various industries.

However, all the lizardmen are still in the stage of "horizontalism", and they do not pay attention to astronomical observations, and do not realize that the planet they are on is round.

Chen Mengchuan became a little interested in this matter.

The total number of lizardmen in the country of Rainbow Star is very large, and according to the current database of Ah Chen, it is speculated that there are at least more than 150 billion lizardmen on this planet.

Among these lizardmen, the total number of educated lizardmen is not large, but they do not have a further understanding of astronomy, and they are still in the stage of horizontalism.

However, several astronomers gave Chen Mengchuan a possible answer in this matter.

That is, the rainbow star is too big and too big. On this planet, from the perspective of a single area, it is indeed difficult for this planet to find the arc of the planet, which is like on the earth, similar to the size of a mouse, how can they find that the earth is round, even if they have mastered the primary technology.

In addition to some curiosities related to the horizon, the brand-new elements that Rainbow Star found were really serious about Chen Mengchuan.

Among the orc races on the Tropic of Cancer, which he values the most, the hard metal has always been in his mind.

This time, the humans of the Tropic of Cancer, through ignorant communication and barter, successfully achieved a tacit understanding with many orc races, so that these orc groups recognized humans to a certain extent.

And they are willing to use the raw materials of their metal rods to exchange large amounts of food, water, and salt with humans.

Many races have even been invited into the towns that have been built by humans.

The multi-armed crabs flying around in the void, as well as the huge suspended spaceship, made these orc races awe-inspiring and regarded the human race as gods.

To a certain extent, this statement is also possible.

When a civilization lags far behind another civilization, it will look at each other as if it were a god.

After such a thing, many tribes paid tribute to humans, and at the same time, many orc children were sent to serve the human gods.

Many educators and linguists began to interact with these orc children, and soon mastered some simple vocabulary of many races.

These words began to settle in Ah Chen's database, but the progress was not fast, because although they were all orcs, there were many differences in the languages of different ethnic groups.

It is a joy to be regarded as a god and smoothly start friendly contact with these civilizations, but at the same time, there are also civilizations that regard human civilization as an invading demon.

In the past half a month, more than 800 human towns have been war-torn in the past month.

War on the Rainbow Star.

A large number of cold weapon war modes in an attempt to conquer and exterminate the human race.

The Tropic of Cancer has encountered soldiers like this.

Whether it is the Orcs of the Tropic of Cancer or the Lizardmen of the Tropic of Cancer, they are all battle-hardened races, and they all have a very systematic battle in terms of warfare.

In the air field, the lizard people not only have hot air balloons, but also have giant kites, flying beasts, large war birds, etc., such a war is estimated to be very difficult to deal with if it is for humans five years ago. But today's technology, when a gravitational barrier is opened, all attacks are blocked outside, and even these wars cannot be fought.

After half a month, after several strong expulsions, these civilized races on the rainbow star realized that human civilization was far from being hostile to them.

After that, the war ceased and there was little killing.

After a few good deeds, the Earth Federation has achieved a large number of diplomatic relations on Rainbow Star.

For these diplomatic relations, Chen Mengchuan only feels very naïve, the diplomatic relations between higher civilizations and lower civilizations, no matter how you look at it, are a layer of hypocritical bubble film, a little stimulation, it will be broken.

However, after seeing that Toni and the mid-level leaders of the Earth Federation were very interested and enthusiastic about these things, he did not express any opinions and suggestions in this regard.

Regardless, progress is good on Rainbow Star right now, with more than 200,000 veins of different elements already searched and explored. This includes iron, copper, gold, silver, and many new types of ores.

Among these minerals, there is the kind of metal element that Chen Mengchuan cares about-Yu!