Bright Sword starts with the grenade flat.

Chapter 365 Superconducting Power Transmission
After all, the planetary engine is on the other side of the blue star, and the curvature engine is naturally placed in front because it needs to distort the space in front of the blue star. Therefore, it is very troublesome to transmit the energy of the planetary engine to more than 20,000 kilowatts.

After all, the longer the line is, the greater the line loss will be, so cables made of ordinary metal materials simply cannot meet the requirements.

You know, even the most advanced ultra-high voltage transmission line of 1,000 kilovolts, or one million volts, can only transmit electricity over a distance of two to three thousand kilometers. Therefore, if ordinary transmission materials are used to transmit the electricity from the global planetary engine to the curvature engine, it is estimated that more than half of the electricity will be lost due to line loss problems.

However, the situation would be different if superconductors were used for power transmission. Because of the zero resistance of superconducting materials, there would be no need to worry about power loss in transmission lines even if the distance was far. In this way, the electrical energy from planetary engines around the world could be concentrated together to supply the curvature engine, allowing the curvature engine to carry the Blue Planet at superluminal speed.

A superconductor, also known as a superconducting material, refers to a superconductor that has two independent properties of absolute zero resistance and complete anti-magnetism below a certain temperature.

The resistance of a superconductor is absolutely zero, that is, the resistance disappears completely. After a superconductor completely enters the superconducting state, it will completely expel the external magnetic field from the body, that is, the equivalent diamagnetic volume reaches a maximum of 100%, and the diamagnetic susceptibility is negative one. The complete diamagnetic property of a superconductor was discovered by the German scientist Meissner, and is also called the Meissner effect.

The first discovery of superconductors by humans on Blue Planet was in 1911, by scientists such as Heike Kamerlingh Onnes from Leiden University in the Netherlands. They measured the conductivity of mercury at low temperatures and found that its resistance disappeared below 4.2 degrees Kelvin, indicating a superconducting state.

That's right, this is Kelvin, not Celsius. If converted, 4.2 Kelvin is equal to minus 268 degrees Celsius. This temperature is more than 180 degrees lower than the current surface temperature of the wandering blue planet of 80 degrees Celsius!

Of course, precisely because the conditions for this superconductor to reach the superconducting state are very harsh, mercury is naturally difficult to be used.

Fortunately, in 1980, scientists in Huaxia discovered that copper oxide achieved superconducting properties at a temperature of 90 degrees Kelvin.

Although ninety degrees Kelvin can only be reached at minus one hundred and eighty-three degrees.

Fortunately, such a temperature can be achieved by liquefying liquid nitrogen. After all, the temperature of liquid nitrogen can reach minus one hundred and ninety-six degrees!

Liquid nitrogen is also something that is extremely easy to obtain.

Of course, a liquid nitrogen cooling system would be extremely large, so if there were no room-temperature superconductors, it would be impossible to miniaturize the nuclear fusion reactor. After all, a liquid nitrogen cooling system would be extremely large.

Of course, what is even more amazing is that the room-temperature superconductors used in the nuclear fusion reactors on alien unmanned spacecraft can withstand temperatures below one thousand degrees, so there is no need for a cooling system to cool the coils.

Of course, laying superconducting transmission lines for the world's 22,000 planetary engines is naturally a huge project, but compared with building planetary engines, it does not seem so difficult.

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While Liu Qi was directing the people on Blue Star to lay the superconducting cables, Liu Xiu was already preparing to enter superluminal travel. When Qin Huairu heard that they were going to enter superluminal curvature travel, she immediately nervously held Liu Xiu's hand and said:
"Brother Xiu, I read in science fiction that to enter superluminal travel, one must enter a hibernation chamber, otherwise the body will not be able to resist the sense of spatial distortion!"

When Liu Xiu heard Qin Huairu say this, he said with some surprise:

"That novel has this setting! The curvature engine only emits gravitational waves in a directional manner to compress the space in front of the spacecraft, forming a space landslide. Although the spacecraft is flying in this landslide at superluminal speed from the outside world, the relative speed between the spacecraft and the space in front of the spacecraft has not changed, so it does not violate the laws of physics!" Qin Huairu nodded seriously after hearing Liu Xiu's words:
"Oh! I see! Although I still don't quite understand, but since it was Brother Xiu who said it, I still believe Brother Xiu!"

Seeing this, Liu Xiu pressed the curvature engine start button without hesitation, but after pressing the button, he didn't feel anything special.

For example, there was the feeling of inertia as if he suddenly leaned back. Although he didn't feel anything, Liu Xiu already knew that the curvature engine had been started, because outside the window of the spacecraft's cockpit, the originally clear starry sky suddenly became blurred and distorted when the curvature engine was started.

Looking at the distorted light outside the spacecraft window, Liu Xiu felt dizzy, so he quickly closed the observation window of the spacecraft.

Then he tried to turn on the radar installed on the spacecraft, but unfortunately Liu Xiu found that the radar on the spacecraft was also unusable, and there was nothing displayed on the radar.

Of course, after turning on the curvature engine and entering the superluminal state, Liu Xiu also found that he did not feel any changes, and the same was true for Qin Huairu.

So in the following period of time, Liu Xiu began to frequently turn on and off the curvature engine for testing.

Then Liu Xiu quickly discovered some characteristics of turning on the curvature engine. For example, after turning on the curvature engine, based on the position comparison of starlight, he found that the curvature engine could increase the speed of the spacecraft itself by a thousand times, reaching about one million kilometers per second.

If calculated based on the speed of light, it is approximately 3.33 times the speed of light. That is to say, at this speed, the Explorer spacecraft will only take a little over a year to reach Proxima Centauri.

In addition to this, Liu Xiu also discovered something that could not be explained by physical phenomena. That is, when Liu Xiu turned on the curvature engine, he could not accelerate the spacecraft by turning on the ion thrusters at the tail of the spacecraft.

That’s right, the speed of the spacecraft is the same when it enters the superluminal state, and the speed remains the same after it ends.

It seems that Newton's third law of action and reaction is invalid when the curvature engine is turned on.

Of course, there is another experiment that Liu Xiu did not do, which is to explore what would happen if the spacecraft turned on the curvature engine and entered superluminal navigation and hit something like a meteorite. Liu Xiu did not dare to do it.

After all, if this experiment goes wrong, it is very likely that the ship will be destroyed and everyone will die. After all, there is not only Liu Xiu on the spaceship, but also Qin Huairu's baby in her belly!
Of course, what made Liu Xiu even more delighted was that when Liu Xiu controlled the spacecraft to enter the superluminal state, Liu Xiu's own enemy and friend map, personal space and space jump could also be used.

However, when entering the superluminal navigation, the exploration of the enemy and friendly maps refreshed too quickly, making Liu Xiu a little dazzled.

Of course, precisely because the friendly and enemy map can still be used, even if Liu Xiu enters superluminal navigation now, he does not have to worry about colliding with any meteorites.

(End of this chapter)