Some are finished ruby laser bars, some are already assembled ruby laser emitters. There are even some titanite lasers.

"He even made this?" Lin 2 frog was surprised when he saw the titanium laser.

"What the hell is this? Isn't it awesome to look at you? Qingxue asked curiously.

Lin 2 frog explained: "This can be used to make optical broadband! In the past, biofluorescence was also widely used on the earth, and microscopic light is the basis of laser industrialization! Broadband networks, including fibre optic fiber, are an important component. ”

Qingxue was also surprised: "Oops! I'll go! If it develops here for a few more years, it won't be more advanced than my Taoyuan Star's technology! ”

"Hehe, you just know!? However, in fact, it is also difficult, different technical routes have different bottleneck periods. In some stages, the development of such science and technology will be fast, and in other stages, the development route of science and technology will be fast. For example, human civilization has developed rapidly from agriculture to industrialization, but it has obviously lagged behind when it reaches interstellar development. And the Nihod people are super long from agriculture to industrialization, but after industrialization, the interstellar period is relatively fast. Lin 2 Frog said a little sarcastically.

Qingxue scratched her head and asked, "Then which path is the development path that Xuedou has been giving?" ”

Lin 2 frog said: "Snow Bean has always been in accordance with the latest human technology, which is relatively comprehensive, including the biological neuron host of your Taoyuan Star, from the perspective of human history, the process of developing to the galaxy level is relatively long, and it requires a lot of industrial support." And the development of biological neuronal hosts is much faster to reach the galactic level. ”

Qingxue seemed to understand, and said, "So I'm not bad over there." ”

"It shouldn't be bad, although King Nihod led them to industrialize faster than you, but if you overcalculate, it is estimated that it is his bottleneck. The part of laser technology also seems to have a reference to the technology of human industrialization process. Lin 2 frog said.

Qingxue feels in a better mood, she has been running her business for so many years, and if she is surpassed by a guy like King Nihod in science and technology, she really feels too unhappy! If I can go back, I have to step up the construction, and I always felt as if all kinds of things were enough, and I didn't have to work so hard if I didn't lack anything. Now I don't think so, sudden threats may appear at any time, and the higher the development of science and technology, there are many more means to deal with it.

Take 10,000 steps back, even if the result of destruction cannot be avoided, if science and technology are developed, there can be so much more delicious food, good drink, and fun! It's not a loss, but think about the Nihod people before, especially the Nihod clones, almost never had entertainment, isn't it really a crime to be developed and developed?

Ay? Qingxue suddenly thought that the Nihod clones were not entertained because they were treated as consumables, so there were very few authentic Nihod people, but did they have entertainment? And what about King Nihod himself?

"What do you think King Nihod usually does?" Qingxue asked while moving things.

Lin 2 frog was also very curious after hearing this, and said, "Let's wait and see, what he usually entertains." All the delicious food, drink, and fun in ancient human beings were for the monarch, and even all kinds of poetry, music, and art were for the monarch or nobles. ”

So they loaded the cart, dragged it into the sewers, hid it, and went to spy on King Nihod's usual entertainment. Lin 2 frogs still judge the role of each direction based on the sewage in the sewer. Because sewers separate rainwater from sewage, the drainage system of rainwater is so large that they can accommodate it, and there is not so much water when there is usually less rain. The sewage only flows through a deeper trough in the middle of the storm drain.

"Actually, I didn't expect King Nihod to still attach great importance to environmental protection." Lin 2 Frog inspected several places that were obviously discharged, and could roughly tell what kind of sewage it was, but it seemed that there was a certain degree of treatment.

"Maybe one of their restarts was because the pollution was too bad?" Qingxue asked.

"It is true that when human history only entered the industrial civilization, the pollution was very serious, and then many pollution incidents caused great damage before we began to pay attention to environmental protection." Lin 2 Frog nodded.

Qingxue continued: "It seems that they will only pay attention to the consequences after experiencing the consequences. ”

Lin 2 frog said: "Even Hawking once said that no matter how human beings protect the environment, as long as human activities occur, it will cause the earth to warm, and the earth's ecological system will eventually collapse." ”

Qingxue said: "I seem to have heard about Linde and Zhixin before, maybe in the next tens of millions of years, looking back at the present, our earth is in the Zheng of a certain species extinction event."

Lin 2 Frog was slightly shocked, because there were indeed many signs that appeared like this. The five extinction events in the entire evolutionary history have been separated by about 13.8 million years, and the process is about 5-100,000 years. It's been 13.8 million years since the last extinction event, and perhaps it's really the time when the extinction is going on. Moreover, it has been 100,000 years since human beings left Africa, will the beginning of human civilization also start the countdown to species extinction?

In fact, Lin De and Zhixin's memories of discussing this kind of problem, Lin 2 frogs have, and the moment of human destruction calculated in imaginary time seems to be less than 50 years or so. But that's before I saw the restart of Nihod, and no matter how I calculated, I felt that it was actually far away from myself and from the entire human race. After looking at the restart time of Nihod Star, Lin 2 Frog felt that maybe there was such a similar mechanism on the earth, so that although from the perspective of geology and fossils, it seems that the five extinction events have their own causes, but the law of time is really the restart of the earth or ecosystem?

Lin 2 Frog, who was full of worries, continued to think about judging the source of the sewage and went to find King Nihod's place of entertainment. According to the analysis of the drainage system of the entertainment facilities of the ancient aristocracy of human beings, it should often resemble aristocratic balls, drinking parties, and the like. Then there will be an obvious phased peak, then the drainage system there will be significantly larger, usually less used, once used, there will be a large amount of drainage.

However, there are not many such facilities, and there are many such places in ancient times. Part of it was a scientific research institution, which originally also belonged to one of the entertainment of the nobility. In order to show that they are more knowledgeable and smarter than ordinary people, they will indeed listen to many academic research presentations.

And Lin 2 frog and Qingxue finally found this place from the drainage pipe that was suspected to be an entertainment facility. They were shocked by what they saw!

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Tang San Chinese Network