Three hundred and eighteen years later.
Yan Xia has returned to the Water Commission One.
At this moment, he is sunbathing on the beach of the Mobius ring-shaped world in his shorts, while Ella is wearing a pure white bikini and following him. There are not only them on this beach, but also some young female aliens, all invited by Ella to liven things up.
For some reason, Yan Xia has become more fond of lively environments since returning from Star City, and no longer enjoys the quiet of being alone.
Of course, these girls look young, but they are actually already in their twenties or even thirties.
The Civil Federation had previously set the age of sexual maturity at 22 years old, with cellular ageing beginning at 35, bodily ageing at 50, the elderly stage at 70, and old age at 100.
Now, due to the new life expectancy law, the maximum life expectancy of citizens has doubled, and with genetic improvements, although 22 is still considered adulthood, the juvenile stage has been extended to 40 years old, the youth stage is from 40 to 130 years old, the middle-aged stage is from 130 to 200 years old, the elderly stage is from 200 to 240 years old, followed by a 20-year period of rapid decline in bodily functions, and finally, at 260 years old, the end of life.
"Chu is loyal to the Olive Branch Civilization, so how did you convince him to give up the mechanical energy technology?" Yan Xia's eyes behind his sunglasses were not looking at the beauties, but at the distant ocean.
From here, one can see a forest in the distance, which looks small, but in fact, each tree in that forest is tens of thousands of meters tall, and Ella has named it the Forest of Elves.
Although there are no real elves, Ella has given that place to the Light Wing Race, and it is not out of place for them to act as elves.
"As long as Chu has a need, I satisfy it, and it gives me a reward. Isn't this a simple exchange of interests?"
"Chu has already unified Star City, and is now on guard against us, so it has not even begun to contact other star cities."
Yan Xia was a little surprised, but soon understood.
"It's been a long time, and if I calculate it, it's actually a little later than I expected."
"Under the ideology of communism, Chu can make Star City progress, but its primary enemy is still the Second Leader, not us."
"Now it is also wary of us because it has not yet truly influenced other star cities, and has blocked the news, so the Second Leader does not know what it is doing."
"It is developing, but also waiting for an opportunity."
"Our war with the Silk Civilization will make it lower its guard a little, and this will take an estimated few thousand years."
Ella nodded.
This factor was also considered in the war with the Silk Civilization.
"The mechanical energy technology that Chu exchanged with us should be an old technology that the Olive Branch Civilization abandoned 40,000 years ago."
"The core of this technology is to use intermittent gravity to drive the machine."
Ella gave Yan Xia a technical animation, and he understood it immediately.
"This should be the real gravity 'wave'."
The core of this mechanical energy technology is to use dark energy to influence gravity, causing it to form a strong-weak wave pattern. When gravity is normal, corresponding to the strong phase, it pulls the heavier end of the deformed mechanical rotor closer. Then, when gravity is affected by dark energy and becomes 'weak', the heavier end of the deformed rotor is pushed away, causing the rotor to continue rotating.
The interval between the strong and weak phases is extremely short, and under this technology, the rotor can reach a speed of 500,000 revolutions per second.
"The efficiency is very low, isn't it?" Yan Xia did not need to calculate to know that the efficiency of this application was pitifully low.
"That's right, it's just enough to achieve a positive energy gain, with an input of 1 unit of energy producing 1.02 units of energy."
2% gain, it's almost like giving alms to a beggar.
"However, we have mastered negative energy, and if we can mass-produce negative energy, we can increase the efficiency, up to 11%."
"According to my calculations, Star City's development of mechanical energy technology should have a return on investment of over 500%, so they have been staying in the constant star system to obtain energy for a long time."
5 times the return, that's a bit scary.
It's no wonder that the Olive Branch Civilization is so strong, even without developing many constant star systems. Their main energy production devices should have already been replaced with mechanical energy devices.
"Everything is difficult in the beginning, but although this technology is terrible, it can at least save us a lot of time."
In Yan Xia's opinion, this mechanical energy technology is still very important.
As long as we improve it for a few thousand years, we can definitely increase the efficiency.
"In addition to mechanical energy technology, the Olive Branch Civilization has many technologies that are stronger than ours, and some that we have not yet developed."
"Since Chu has regained control of Star City, the Interstellar Silk Road should also play its true role."
Of course, the Silk Road is for trade.
Exchanging small trinkets for better things.
"I've also been talking to Chu about this matter, but he hasn't budged, so we'll probably have to offer something else."
Chu knows that the Federation doesn't have anything good, and they won't trade anything truly valuable.
So this trade should be a stubborn one where neither side loses out.
Yan Xia thought for a moment: "What Chu really needs is experience, as the Olive Branch Civilization hasn't had a war in a long time, and they lack experience in warfare."
"Give it a virtual world, and play around with some Sun Tzu's Art of War or something."
There is no such thing as fooling other civilizations with useless things.
So if Yan Xia really wants to give something, it has to be useful.
Tactics will make Chu stronger, and then he will use these tactics against the Civil Federation.
But Yan Xia is not worried about this, because Chu's primary enemy will always be the Second Leader.
Giving these tactical knowledge is also to help Chu win.
Yan Xia has always wanted to cultivate Chu to become the leader of the Olive Branch Civilization.
Because now, the only one who can communicate with the Civil Federation is Chu, and the other managers or leaders of the Olive Branch Civilization will not have any communication with the Federation, and with the previous experience, if other managers or leaders were to get involved, it would be a direct collision between the two civilizations, without any buffer.
And Chu.
Chu's understanding of the Civil Federation also means that Yan Xia understands him better, and in the case of a weak civilization facing a strong one, Yan Xia has always seen the opportunity for victory in Chu.
"Helping a friend is helping yourself, isn't it?"
Yan Xia smiled and relaxed, twisting his body slightly to get more comfortable, and immersing himself in the sea breeze with a hint of saltiness.