From Impel Down to the Multiverse

West Blue’s Underground World is surging under the current.

At this time, Orovia and Robin have already passed through the shadow channel and came to the cloud realm.

After more than half a year of action, the Federation of the People's Republic of China has absorbed as many as 1.73 million people from Kano Country, of which 1.4 million are placed in the Tianyun Federation, and the remaining 330,000 are placed in the Kingdom of Food .

The arrival of these Kano Country populations quickly filled the man-made Skypiea, plus the 15 large natural Skypiea controlled through economic penetration. At this time, the total population of the Tianyun Federation has reached 2.13 million. .

Tianyun Federation currently has 67 Skypiea, of which 32 are man-made Skypiea and 33 are natural Skypiea.

Its control is divided into three major areas, namely Yunjing District, Shandola District, and Kunlun Xu District.

The increase in population and territorial airspace naturally requires an increase in the size of the standing army. At present, the Tianyun Federation has a total of 60,000 standing army and a total of 12 regiments.

Of course, the size of the army of 12 regiments, for the current Tianyun Federation, is actually significantly higher than the standard.

Because of the soldier battle strength of the National Revolutionary League, with the blessing of the base armor, each person has reached the Rear Admiral level battle strength to start.

A battalion of 500 people, without external support, conquered a medium-sized kingdom on the sea. That was a matter with no difficulty.

The 12 regiments with 60,000 people, even powerful countries like Kano Country, Elbaf, and Alabasta, have insufficient resistance.

Currently, the troops stationed on each Skypiea are usually 1 battalion per Skypiea.

Even if it is the capital of Yunjing, Shandora, Kunlun Xu, it is only 1 regiment.

Currently, the strength of the Tianyun Federation still has 4 regiments surplus.

But such a large force is not for defense, but for offense. These forces are reserves.

In addition, there are Martial Discussion Hall, new recruit training camp, and militia reserve. The People's Revolutionary Federation is basically in a state of all soldiers, which can be called the extreme point of abundant military virtues.

On the other side.

The brand new battleship designed by Wang Gao himself, the group of stars, has also come to the most critical place.

Turn from the Kingdom of the Future to see Academician and Faraday Academician on the moon, and also help Wang Gao design a group star battleship.

Just three people, plus a group of researchers, are still stumped by the core problem. As a cosmic spaceship, the prototype of the star group is the Ark Proverbs, but the scale is much larger.

The original design dimensions of the Ark Proverbs are roughly as follows:

The main part of the spaceship: the height of the spaceship is 125 meters, the length of the front and back is 173 meters, and the width of the left and right sides is 93 meters.

The length of the front and rear, if the angle of impact is added, can reach 190 meters; the width of the left and right, if the propellers on both sides are added, it can reach 174.6 meters.

The total volume has reached 164,000 cubic meters. Although it is not entirely made of gold, the proportion of gold in it is very high.

In the original design of the Ark Proverbs, wood, steel and the like accounted for about 98.8% of the parts, and the remaining 1.2% of the parts were made of gold.

98.8% of the wood and steel parts weigh only about 15,000 tons; while the gold parts, which account for only 1.2% of the volume, weigh 9304 tons.

It can be seen how huge the gold reserves of the golden city Shandora are.

After Enel built the Ark Proverbs, there is still a lot of money left, and the total reserves exceed tens of thousands of tons.

Of course, the design of the original Ark Proverbs must not be copied. After all, gold is not steel. Even if it can be excavated at seabed, it is not conducive to mass production.

even more how, the role of gold in the Ark's motto is to be used as a conductor and storage device, and gold is not the best conductor material.

Among the currently known materials, the most conductive materials are silver, copper, gold, and aluminum in order.

The key factor that determines the conductivity of a material is the resistivity. The smaller the resistivity, the better the conductivity of the material.

The resistivities of these four materials are: silver 1.6, copper 1.7, gold 2.4, and aluminum 2.7.

Therefore, the improved version of the group star battleship uses copper wire as the core material of the circuit and the motor.

Another change is the mode of flight.

In a fixed impression, the Ark’s motto has propellers and oars. Many people would think that this spaceship flew to the moon by propellers and oars.

Actually, the core power of the Ark's motto is not relying on propellers and oars, but on the anti-gravity generated by N hydrogen particles.

This is also the hull of the Ark's motto. It looks like a ship with a large wine barrel. The reason is that the huge barrel part contains a large amount of liquid rich in N hydrogen particles.

When the later generations of Enel started the Ark Proverbs, there was a very special scene, that is, he was sitting in the golden power generation seat, using the ability of Goro Goro no Mi to ionize the "big" inside the Ark Proverbs through electric current Water bottle", and then the chimney spit out a lot of thunderclouds.

In fact, these "big water bottles" are containers for storing liquids rich in N hydrogen particles.

Through the ionization of different voltages, a large number of thunderclouds, cumulonimbus clouds, and floating clouds can be produced.

Furthermore, in the vat cabin, there are not only liquid storage bottles, but also floating cloud airbags and storage batteries. The floating cloud airbags are filled with floating clouds rich in N hydrogen particles.

In the case of electrification, N hydrogen particles will become highly active, and the anti-gravity intensity generated by it will also increase.

There is only one Floating Cloud Airbag, but because it is composed of 500, the overall anti-gravity strength of the spaceship can be controlled through the power ratio of the Floating Cloud Airbag.

This is the core motivation of the Ark's motto.

As for the propeller and the oar, they are actually useful. These two systems are mainly used to control the flight posture and direction.

In addition, after entering the atmosphere, or down to the sea surface, it can also be used as an important way of propulsion.

The Ark Proverbs is obviously a multi-purpose spaceship.

And another branch of the descendants of the moon, the Kingdom of the Future, actually still has some of the techniques of the Ark's Proverbs, but it is not complete.

For example, those flying balloons made by Yuejian Academician use part of the floating cloud airbag technology of the Ark's Proverbs.

Group stars also use built-in floating cloud airbags, but Wang Gao, Yuejian Academician, Faraday Academician and the others encountered a thorny problem on the storage battery.

That is the current storage battery density is not high, if there is no Goro Goro no Mi Ability-User continuous discharge, it will not run for too long, it will be choking to go back and forth to the moon.

The electric energy released by the Ability User is not unlimited. Physical strength is a fatal problem.

Even if you have a calorie heart, you can't support more than 10 Ark Proverbs.

even more how a group of stars is equivalent to three ark proverbs.

In other words, Goro Goro no Mi Ability-User can maintain up to three group-star ships, and currently in Yunjing’s shipyard, a total of three group-star ships have been built.

If you want to increase the scale of the group star battleship in the future, you will face a situation where there is no electricity available.

Currently, Wang Gao has three solutions.

The first idea is to increase the unit storage density of the battery so that it can be charged once and used for several months.

Unfortunately, although he and Faraday continued to improve the storage materials, they only increased the storage density by about 1.7 times from the original basis, which is far from the envisaged goal.

The second idea is the biological generator, which uses the genes of electric eels, fur tribes, Skypiea shells and other organisms to adjust artificial organisms specially used for power generation.

Technology is no problem, and the power generated by a single unit can also reach 3 megawatts, which requires a large amount of high-energy food.

In fact, the moon people thought about this plan back then. The fur tribe is genetically engineered genetically modified organisms under this background.

Even if Wang Gao has the genetic basis of the fur tribe, the adjusted biological Generator, its thermal efficiency is still not as good as the internal combustion generator.

The third idea......