In advanced civilizations, the manufacture of artificial gravitational devices has extremely strict requirements for the production environment, must be highly pure vacuum, and must be free from the gravitational pull of the stars, that is, the factory must be built in space far away from the stars, for the lower civilizations, it is almost impossible.

The artificial gravity system and the anti-gravity system seem to be related to each other, but in fact they are two completely different fields, Lin Feng can be said to be standing on the shoulders of giants, and he is still relatively familiar with these theories.

Anti-gravity, whether it is the gravity of the ultra-high voltage electric field, or the anti-gravity of spin polarization or spin resonance, actually has one thing in common, that is, the manipulation of electrons, no matter how it is achieved, in fact, the principle is universal.

Let a huge stream of high-speed electrons permeate the outer shell of the spacecraft, and these electrons collide with each other at high speed, bouncing back, forming a closed wall of electrons, making it difficult for gravitational radiation to pass through this wall, thus achieving anti-gravity.

If the energy is raised by another level on this, and the electron flow is strong enough, then it can protect against the attacks of energy weapons.

For example, the name of the laser weapon, its emitting equipment is a bit twisted: a high-charge heavy ion accelerator and a matching high-current high-charge laser ion source, which is probably like this. (The principle of the strong current accelerator used for nuclear fusion is similar to this.)

To put it simply, a laser is a shock wave with an ultra-high frequency, so high that in the process of propagation, the particles in the area through which they vibrate to produce high temperatures, and when they hit the electronic wall, these particles will be scattered, so as to achieve defense against laser weapons, or other types of energy weapons, which is the energy shield we commonly see in science fiction.

Of course, in the process of defense, the energy shield itself will also produce a certain temperature.

In advanced civilizations, artificial gravitational devices are factories set up in space, which continuously compress and recompress materials, and at the same time, extract antimatter and unwanted matter. As the antimatter is constantly extracted, the density and mass of the compressed matter increase dramatically, and the number of gravitons on the matter reaches an astonishing level, which produces enough gravitational radiation.

Such a production line can produce both antimatter and artificial gravitational materials, but because its gravitational force is strong enough, the spaceship cannot land directly on the planet, but advanced civilizations have a plan to deal with this situation, and can quickly drop artificial gravity modules in an emergency.

Therefore, in the scheme designed by Lin Feng, this artificial gravitational device was directly shot to death, because it is almost impossible to achieve it at present, so Lin Feng's design is mainly based on centrifugal gravity, and then equipped with weak magnetic boots, which can basically meet the current needs.

At a meeting, Lin Feng showed everyone the plan he designed, why Lin Feng, there are some things that everyone actually knows by heart, so Lin Feng deserves to be the chief designer of this spaceship, so this spaceship has made some modifications.

Lin Feng's design is very simple, directly add a disc similar to the one on the AWACS aircraft. Of course, it is not a pure disc, but the arc shape resembles the back of a turtle, so the main design does look a bit like a turtle, which is also a helpless move at present.

Lin Feng completed the main design in one month, and the remaining details were completed by other personnel, even if there is artificial intelligence, it is estimated that it will take a year to complete.

The timeline shifts to mid-April.

Trump's visit to China, in the past, the US president has reached a large order every time he visits China, and this time is no exception, but as the main aircraft, there are only ten Boeing 787s, and as the main model sold, the sales of medium-sized passenger aircraft are zero.

Because the C919 has been mass-produced, the speed is 20 aircraft per month, although it is much less than large companies such as Boeing and Airbus, but it is enough to meet their own needs.

Therefore, the largest product transaction between China and the United States this time is agricultural products, American beef pork, grain, and seafood, of course, the big customer of these products has always been China, and the two sides have signed a large order, so that both sides have better faces.

However, the largest contract in the middle is a large screen order from Apple to Moxing, with a total contract value of up to $4 billion.

Mr. Trump wanted to visit the magic star company, and Lin Feng naturally accompanied him throughout the whole process, chip factory, screen factory, auto parts factory, software development department, Mr. Trump ran all over again.

Mr. Trump sent a kind invitation to Lin Feng, inviting him to invest and set up a factory in the United States, and Lin Feng smiled and promised to go if he had the opportunity.

Of course, some details cannot be directly faded by Trump and Lin Feng, which involves the national level, Trump only needs to make an attitude to show that what he released is goodwill, and the rest of the details will naturally be completed by others.

In the following time, the world's political situation entered a strange period of stability, due to the test flight of a number of new types of Chinese aircraft, resulting in a sharp rise in China's international status, has almost been on an equal footing with the United States, in fact, everyone can see that China's total economic output has surpassed that of the United States, just in the past few years.

So China's investment around the world has blossomed everywhere, and in the following time, Mexico has also carried out deep cooperation with that ancient civilization far to the East.

The country's oil, energy, railways, transportation, banks, and electricity were already controlled by the Magic Star Corporation before.

But how can a country have only such a small number of high-quality industries, and the businessmen of that ancient country wave money and buy up one business after another in Mexico.

In the following days, more infrastructure contracts were signed, and bridges, roads, and high-speed railways were all built in Mexico.

All the proposals of the presidential palace will be adopted as soon as they are put forward, and all discordant notes will disappear.

And the Doraemon companion robot, which is popular in Japan, has also appeared in Mexico, and the elite families in Mexico almost have one, and the all-knowing Doraemon is very popular with children.

Everything is going in a good direction, unemployment has fallen, commodity prices have fallen, law and order has improved, the standard of living of the citizens has improved, tourism is booming, and more tourists are being received.

Japan and Mexico are directly trading with the renminbi as a trading currency, and the amount of renminbi as a foreign exchange reserve has also reached 3.27%, becoming the fourth largest reserve currency in the world.

At this time, Lin Feng's undersea base also spread some good news, but Lin Feng had some entanglements, that place, Lin Feng felt a little frightened, go, or not go?