The pulverized coal enters the boiler through the exhaust fan, burns at a rapid rate, produces a large amount of hot flue gas, flows along the horizontal flue, and then discharges from the large chimney to the outside, turning into a huge white plume of smoke that soars into the sky.

The inside of the steam turbine rumbles and vibrates, and the high-speed flowing steam pushes the rotor to rotate, so the rotor of the generator is also rotated at high speed, and the conductor coil continuously cuts the magnetic inductance line, generating induced electromotive force, and the huge mechanical energy is thus turned into electrical energy.

At this moment, electricity was born.

Huge amounts of electric current enter the power lines from the thermal power plant, and then to various factories, schools, construction sites, etc., and then pass through the transformer and enter the light bulb that has been installed for a long time.

It was getting dark, about half past six.

The orcs in the city are still in the construction site, and the little orcs are still in the school, but they have no intention of working, they have no intention of studying, they can't sit still, and they look up at the light bulb from time to time, as if there is a thunderbolt hidden there.

As has been foretold in the recent newspapers of tomorrow, tonight will be the day of electricity, and all the places where electric lights are installed will be lit up until about 11 o'clock in the evening.

The thermal power plant was far away, and they couldn't hear the rumbling, but someone kept an eye on the chimney.

Seeing white smoke rising from the chimneys of the thermal power plant, the hearts of the orcs hung in the air, realizing that the next time was to witness a miracle.

"Is the electricity coming?"

"Will it explode?"

"It won't explode, the foreman has told me many times, it will never explode, the light bulb is a safe product!" At the construction site, the orcs said impatiently.

in school.

Students are itching, chatting with their tablemates, or taking turns memorizing to keep their minds learning.

However, it was dark, there were no candles in the classroom, and the learning was not efficient, so the students who could not sit still simply walked out of the classroom and watched the white smoke column rise to the sky on the playground.

There are also those who stay in the classroom staring at the light bulbs, wanting to see for themselves the whole process of going from zero to on.

"Teacher, why is the light still on?" A fox-eared Lori opened her big cute eyes and asked the little teacher on the stage.

Under the guidance of the little teacher Ena, there was a small stool, and she stood on the small stool, with the top of her head about 50 centimeters above the podium.

I saw Ena put her hands on her waist and said glutinously: "Don't worry, everyone, the chimney of the power plant has risen, and it will be powered later." ”

"Teacher, I want to light a candle! I want to learn! A certain scholar longed.

"Teacher, I want to play hide and seek."

"Teacher, Teacher......"

Ena took a small whip, banged on the podium, and scolded with a wrinkled round face: "Study hard, and if you can't see the words in the textbook, you will endorse it!" ”

People who are not teachers can hardly understand how difficult it is for a group of children to teach.

Ena sometimes feels very tired, being a teacher is not as easy as imagined, and children of the same age are easily affected by external objects.

Even she herself is easily influenced, and Ena would like to see the lights shine now, but she is a teacher and cannot take the lead in influencing classroom discipline.

Fortunately, the students in the schools in Tomorrow City are all children of poor families, even if their parents have job security, they will not forget the hardships they have endured.

After a while, there was a scream outside the classroom.

The cat's ears on Ena's head moved slightly, and she ran out of the classroom with a whoosh, as fast as she was, and the homeroom teacher next door, Effie, and then the students in the classroom also ran out.

With a burst of screams, more and more students at the school gate, Ena Efe squeezed to the door, and finally saw a white light on the other side of the hill, where the industrial area is located.

The light was soft and bright at the same time, constantly and steadily illuminating the building and dispelling the darkness in the sky.

"It's the light, I see the light!"

Ena screamed loudly and hugged her sister.

Her sister also wagged the kitten's tail happily, and the two of them squeezed their faces and cheered.

The light of the industrial area is lit up one by one by one, from far to near, and after more than ten seconds, the classroom behind the old campus is also lit up.

"There are shadows! We've got a shadow! ”

The orcs looked down at the floor and exclaimed.

Ena Efe looked down at the ground, there were countless shadows, stretched long.

When I turned around, I saw that every classroom was shining with white light, and the darkness seemed to be scared away by the light, which illuminated the desks, chairs, blackboards, and books in the classroom.

Ena returned to the classroom, grabbed the students who remained in the classroom, and asked, "Why did the lights come on when the call just came?" ”

Not only did she ask, but the students who returned to the classroom were even more anxious than Ena, and they all feverishly grabbed other people's shirts and forced them to ask.

The student who was questioned did not feel persecuted at all, and he described it with a fanatical expression:

"The tungsten filament in the light bulb suddenly turned red, and then the filament became brighter, brighter and brighter, and after two seconds, it blinded my eyes, and I blinked again, and the darkness in the classroom was gone!" The orc pointed to the corner of the classroom, which was a little dark, but it was much brighter than it had been a dozen seconds ago, and the lines on the walls could no longer be seen.

This night, the orcs of Tomorrow City were all immersed in "miracles", and they had no intention of studying, no intention of working, and only wanted to revel, singing songs in praise of Alan.

The orcs didn't have any artistic cells, and besides, there was no art class at the school, so the orcs shouted a dozen or so long live Allen, and then someone realized that it was not good to sing.

Hood, the city's leading priest, was busy tonight, having learned ritual music before, and the orcs asked Hood to make a hymn in praise of Alan.

Hood has been busy with construction, and he hasn't made a song for a long time, and everyone asked him to make a song, but of course he couldn't do it, so he refused again and again.

But there are many orcs who can't stop coming to the door, and there are all kinds of reasons, even he himself has been moved.

Maybe he can really compose a hymn to the city lord?

No, now the lord of the city, and then the king!

Hymn to the King!

Hood's face was pale, and he was one hundred and one points serious, but he didn't agree to the outside world, because he needed Allen's permission to create, otherwise his position would be ruined.

On this night, the orcs of Tomorrow City carnival to their heart's content, and the lighting effect of the electric lights shows that Tomorrow City really uses electricity to do practical things, indicating that Tomorrow City has entered the electric age.

Alan was in the thermal power plant, looking at the bright lights in the power plant, and a tinkling in his head.

New campus in Tomorrow City.

Human teachers remain in the school building and are supervising the students' evening self-study.

"If you don't give out candles today, how can you let students study, what do the deans and principals of Tomorrow City think, are your brains in water?"

Leah walked back and forth in the small hallway of the classroom, her face gloomy, irritated, and unhappy.

The students below saw that the teacher was unhappy, and hurriedly persuaded: "Teacher Liya, don't be angry, maybe the school candles have run out, after all, there are too many of us, and we are already very satisfied with the opportunity to learn." ”

The students were dressed in tattered clothes, and their malnourished little faces were round-eyed and eager to learn.

They are very poor, their parents are slaves, and being able to go to school and study with their classmates is a blessing for the last life.

When Leah heard this, she felt even more sorry for these little orcs.

Looking at those sensational kitten ears, fox ears, lion ears, rabbit ears, dog ears, wolf ears, etc., Leah is eager to grasp the core power of Tomorrow City, meddle in Tomorrow City's commerce and agriculture, and improve Tomorrow City's food.

It was also at this time that a world announcement popped up in her head.