Bright Sword starts with the grenade flat.

Chapter 445: Heading to the Center of the Galaxy
In order to save resources and maximize the area while reducing weight, the power-generating sail of the stellar energy collector naturally cannot be made too thick.

So without sufficient thickness, there is naturally no strength, and although in space it is not like on the blue planet.

If the sails of a sailboat on the blue planet were too fragile, they would be torn apart by the strong winds, but there are no strong winds in the universe.

Although there are no strong winds in the universe, there are stellar storms caused by stellar activities in the star system!

Of course, not all stars will produce stellar storms, and the stellar storms produced by stars of different levels are also different.

For example, before the Wandering Blue Planet started wandering, it was hit by a severe high-intensity storm from the sun. The high-energy, high-speed charged plasma flow attacked the entire hemisphere of the Wandering Blue Planet.

However, even if the sun has not been tampered with by aliens, the solar storms produced by yellow dwarf stars of the sun's magnitude are not something that the power-generating light sails that collect stellar energy can withstand.

Because solar storms are an enhanced version of solar wind, which is caused by the fusion activity of the sun, resulting in large amounts of matter being ejected into space.

These charged ion flows will not only damage electrical equipment, but more importantly, these charged particle flows are composed of mass, so they are like small bullets, which can turn the power-generating sails of the stellar energy collector into a sieve, making it unusable or significantly reducing the power generation efficiency.

Of course, any star will have stellar wind, which is the solar wind. However, Proxima Centauri's stellar wind is much lower than the solar wind, only 20% of the solar wind.

What's more important is that since Proxima Centauri is a red dwarf, the hydrogen nuclear fusion inside its body is extremely stable, so there are naturally few or almost no stellar storms, the behavior of ejecting large amounts of charged ion streams.

Although Proxima Centauri does not have solar storms, it does have stellar flares from time to time.

But compared with stellar flares and stellar storms, there is no comparison.

After all, one emits strong magnetic waves, such as X-rays or infrared rays.

But whether it is infrared, ultraviolet, or X-rays, they are essentially just light. The biggest difference is the wavelength.

However, as long as it is light, the power-generating light sail can absorb it and convert it into electrical energy, and the absorption efficiency is more than 99%, which is much better than the power generation panels with an absorption efficiency of only 20 to 30 percent.

Precisely because Proxima Centauri has few stellar storms and its star is stable, we chose to place the stellar energy collector on Proxima Centauri rather than on the two stars Alpha Centauri and Alpha Centauri AB, which are similar to the Sun.

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Although laying a superconducting acceleration coil track of more than 10,000 kilometers is a long journey, even with such a long track, it was completed in less than a year thanks to the hard work of tens of billions of humans on the entire Wandering Blue Planet.

Of course, after the construction is completed, it will naturally have to be tested. Of course, this first electromagnetic cannon test is not used to verify the power of the electromagnetic cannon shells, but to verify another problem, that is, the communication range and timeliness of quantum entanglement.

In addition to these two problems, we also need to see what the problem is at the center of the Milky Way. This electromagnetic cannon will be fired towards the center of the Milky Way at a speed of 90% of the speed of light.

Then, it will use quantum entanglement communication to call once every certain distance to see if it can get a response, and do this until no call feedback can be obtained.

As for quantum entanglement communication, many scientists have been studying this technology since before Liu Xiu traveled through time, and it has been quite popular.

But what is quantum entanglement? In physics, it is defined as follows: when two or more particles interact with each other, the properties of each particle are combined into the overall properties, so it is impossible to describe the properties of a single particle alone, only the properties of the overall system can be described. This phenomenon is "quantum entanglement."

Scientists have long discovered that the process of quantum entanglement is completed instantaneously, at a speed far exceeding the speed of light, even more than 10,000 times the speed of light. However, the exact number of times has not been calculated. 10,000 times is just a rough estimate!

Quantum entanglement means that two quantum particles will perform the same action no matter how far apart they are, but this cannot be considered information communication.

Because here we have to ask ourselves what exactly is information! A relatively accepted definition in the scientific community is what the mathematician Shannon mentioned in a paper: information is used to eliminate the existence of random uncertainty.

For example, there is a glove in a box, and we don't know whether it is a left glove or a right glove, which is uncertain. After we open the box, we will see photons reflected by the glove, which is information, and it is this information that eliminates the uncertainty of whether it is a left glove or a right glove, and we will get a definite result.

Quantum entanglement is fast, but the whole process does not transmit any information, and information is an indispensable element in communication. Without information, it cannot be called communication.

However, the definition of quantum entanglement in physics always gives people an abstract feeling. So how should we understand quantum entanglement specifically?
Let's take the example of the gloves in the box. There are two gloves A and B in the box. We don't know whether the gloves are left or right, it is random. Then, theoretically speaking, there are four possibilities for the state of the two gloves, that is, four combinations, namely: left-left, right-right, left-right, and right-left.

This is equivalent to the microscopic particles in the microscopic world. For example, electrons have two properties: up spin and down spin. Two electrons can also have four spin combinations.

However, for electrons in the microscopic world, if two electrons are close enough, some changes will occur, photons will be released, and the two electrons will form an entangled state. As the definition of quantum entanglement states, the two entangled electrons no longer exhibit a single attribute, and the original four possible combinations will become two possible combinations, because the spin states of the entangled electrons must be opposite, and the directions can only be "up and down" or "down and up".

At this point, even if we separate the two entangled quanta and put them far apart, the entanglement between the two still exists. When we try to observe the spin direction of one of the electrons, if we find that it is upward, then we can immediately know that the spin of the other electron is downward, without even observing the other electron.

One point that needs to be emphasized here is that in the macroscopic world we live in, whether we observe it or not, the state of the glove has actually already existed objectively and will not be affected by our observation. What we see is just a certain state that has already existed.

But it is different in the microscopic world. Before we observe, the spin direction of the electron does not exist objectively, but is random, in a superposition state of "spin up and spin down at the same time". The moment we observe, the electron spin collapses from the superposition state to a definite state of "either up or down".

Not only photons, but other microscopic particles, such as photons, neutrons, etc. can have quantum entanglement phenomenon.

(End of this chapter)