"The rural teacher plane task is completed and evaluation is in progress ... The evaluation is completed. This task is completed with degree A. Congratulations to the host, which will greatly improve the teaching ability. In addition, the system will randomly select a technology from the plane as a reward.

Pang Xuelin just felt a warm current coming to his mind.

Suddenly there was something unclear in his brain. Before, when he was in class, he tried hard to clarify all the knowledge points he wanted to talk about, but there was always something opaque.

But now, Pang Xuelin has a feeling that even if an ordinary undergraduate student is in front of him, he has a way to let the other party thoroughly understand his Ponzi geometry in a few lessons.

Pang Xuelin opened his eyes and saw the sweepstakes interface of the system again.

Pang Xuelin didn't think about the reward on the turntable, but asked:

"System, why did I leave so suddenly in the country teacher world this time? I didn't have time to say goodbye to Xiaohui and Aqing ..."

"..."

"System, aren't some of the issues I discussed with the Carbon-Based Coalition officials just now, so you asked me to come back early."

"..."

Still a moment of silence.

"System, is it more powerful to make your higher civilization than the zero?"

"..."

"System, are you pretending to be dead?"

"The system won't die!"

"MMP!"

Pang Xuelin cursed.

The system is rogue, and he can't help it.

"Okay, system, the last question. After I left the country teacher world, the country teacher world time has stalled. I want to ask, is the time of the entire universe stuck, or is it just a small area of ​​time stuck?"

Pang Xuelin Road.

This time, the system finally answered in a straightforward manner: "After the host leaves the village teacher world, all material time in the solar system of the village teacher world returns to zero!"

"What do you mean?"

Pang Xuelin was a little puzzled.

Systematic Road: "Time returns to zero, that is, the entropy of all material in the solar system is stagnant, and the world outside the solar system is not affected. In the world of rural teachers, no civilization can observe the existence of the solar system again."

"Okay, you are great!"

Pang Xuelin could not help but breathe a sigh of relief.

Regardless, as long as you continue to grow, one day in the future, you can meet Xiaohui and Aqing again.

It was determined that Wang Muhui and Su Anqing would have no problems, and Pang Xuelin focused on the lottery wheel in front of him.

Roulette is divided into six areas, representing six technologies.

The six technologies are:

I. Singularity Bomb

A singularity bomb is essentially a particle with no size. An atom is infinite compared to it. It is a miniature model of the singularity of the universe and has some parameters of the singularity of the universe. The singularity bomb is surrounded by a miniature black hole ranging from tens to hundreds of meters in diameter. This bomb was not manufactured manually, but was formed at the beginning of the universe. After being captured by the search fleets of the Carbon-based Life Alliance and the Silicon-based Life Alliance, they can be detonated by special means. It is the only weapon in the village teacher world that can destroy stars.

2. Stellar Leapfrog Technology

The use of stellar energy to open the space-time wormhole for space-time transitions, with a maximum transition distance of 200 light years, is an indispensable technology for super-light-speed cosmic navigation. The only drawback is that after the transition, it is easy to cause space-time distortion of the galaxy.

Third, high-dimensional communication technology

The use of high-dimensional space for super-light speed communication can ensure that there is no delay in communication even at the two ends of the universe.

Fourth, holographic image technology

A technique that uses the principle of interference to record and reproduce a true three-dimensional image of an object. Ordinary photography technology can only record the light intensity information (amplitude), and the depth information (phase) will be lost. In the interference process of holographic technology, the superposition of wave crests and wave crests will be higher, and the wave crest and wave trough superposition will be flattened, so a series of irregular, light and dark stripes will be generated, so that phase information is converted into intensity information and recorded on photosensitive materials.

The first step is to use the principle of interference to record the light wave information of the object. This is the shooting process: the subject forms a diffuse object beam under laser irradiation; the other part of the laser is used as a reference beam to hit the holographic film and superimposed on the object beam Interference is generated, and the phase and amplitude of each point on the object's light wave are converted into spatially varying intensities, so that all the information of the object's light wave is recorded using the contrast and interval between the interference fringes. After the negative film recorded with the interference fringes undergoes processing procedures such as development and fixing, it becomes a hologram, or hologram.

The second step is to use the principle of diffraction to reproduce the light wave information of the object. This is the imaging process: the hologram is like a complex grating. Under coherent laser irradiation, the diffracted light wave of a linear recorded sinusoidal hologram can generally give two An image, that is, a primitive image (also called an initial image) and a conjugate image. The reproduced image has a strong three-dimensional sense and has a real visual effect. Each part of the hologram records the light information of the points on the object. Therefore, in principle, each part of it can reproduce the entire image of the original object. Multiple exposures can also record multiple different images on the same film. And can be displayed separately without interference.

Five, quantum computers

A quantum computer is a type of physical device that performs high-speed mathematical and logical operations, stores, and processes quantum information in accordance with the laws of quantum mechanics. Classical calculations are done at the same time and are superimposed with a certain probability amplitude to give the output of a quantum computer. This kind of calculation is called quantum parallel computing, and it is also the most important advantage of quantum computers.

Anti-matter technology

Antimatter is similar to matter particles, with oppositely charged matter particles. Each elementary particle has its corresponding antiparticle. When elementary particles and their antiparticles meet, they annihilate at the same time and turn into energy.

...

Pang Xuelin's eyes lit up.

This trip didn't come in vain.

Although the technology level of the earth in the "Teacher of the Country" world is low, the technology level of this world has reached a very high level.

Therefore, the technical rewards given are also very discouraging.

However, Ping Xuelin did not like the singularity bomb, stellar leapfrog, and high-dimensional communication.

Even if these technologies are extracted, they are just like giving the nuclear bomb drawings to the primitive people, and they have no meaning.

The real world earth simply does not have the possibility to realize it in a short time.

The last three techniques are a bit interesting.

Whether it is holographic image, quantum computer or antimatter, it has certain application value.

Of course, even if the anti-matter thing is created, it can only be hidden in the real world as a big killer.

However, quantum computers and holographic images are more useful in the real world.

Among them, Pang Xuelin's favorite is quantum computer technology.

After all, quantum computers have unique advantages whether they are to set up a new home for MOSS or for future scientific computing.

"Host, may I start the lottery?"

"Start drawing!"