The lobby on the first floor is spacious and bright, with a white tiled floor as smooth as a mirror, and several high-powered fluorescent lights hanging from the ceiling, illuminating the entire lobby in every detail.

Against the wall was a row of service counters about half a person's height. Behind the counters sat clerks in uniform blue work clothes, each with a stack of forms in front of them.

Several people were queuing up at the counter to handle their business.

An elderly farmer-looking man was standing in front of the household registration window, speaking in broken Mandarin to the clerk that his family had a new grandson and needed to register him.

The clerk quickly made a note, took out a form, stamped it with a red seal, and handed it to the old farmer.

The whole process takes no more than five minutes.

Lin Mo led the Empress and Chi Linglong directly to the fifth floor.

Push open the door to a room with a sign that reads "Science Classroom".

A young male teacher stood on the platform, wearing a white shirt and dark gray trousers, with frameless glasses perched on his nose, drawing circuit diagrams on the blackboard with chalk.

The students in the classroom were all adults, mostly junior staff from various functional departments, who were taking notes in their notebooks.

Lin Mo arranged for the Empress to sit in an empty seat in the back row, and whispered a few words to the teacher, essentially saying that these two were distinguished guests from the county who wanted to hear about the basic principles of electricity, and asked the teacher to give an easy-to-understand popular science lesson.

The teacher adjusted his glasses, glanced at the Empress and Chi Linglong, asked no further questions, picked up the chalk again, and drew a coil and a magnet on the blackboard.

"Dear students, today we will review the basic principles of electricity once again."

As he spoke, he wrote four large characters on the blackboard:

Friction generates electricity.

Have you ever seen tiny sparks or heard crackling sounds when you take off your sweater in winter?

That's static electricity, generated by the transfer of electric charge between objects.

The Empress nodded slightly, without saying a word.

Chi Linglong frowned, clearly trying to recall whether she had heard any crackling sounds when she took off her clothes.

The teacher drew a simple circuit diagram on the blackboard and continued explaining:

There are two types of electric charge: positive charge and negative charge.

The directed movement of electric charges forms an electric current...

Just as water flows in a river, electric current flows in a conductor, from the high-voltage end to the low-voltage end.

Voltage can be understood as the drop in water flow; the greater the drop, the faster the water flow, and the greater the current.

The difference between a conductor and an insulator is like the difference between a river channel and a dam.

Copper wire is a conductor, and electric charge can move freely inside it;

Rubber is an insulator; electric charges cannot pass through it.

The electrical wires we use every day have copper wires inside, covered with a layer of rubber. This is to ensure that the current flows obediently along the copper wires and doesn't go elsewhere.

He turned around, picked up a small hand-cranked generator from the lectern, connected a wire to a small light bulb, and began to turn the handle.

The coil spun rapidly between the magnets, and the small light bulb first glowed slightly red, then grew brighter and brighter, finally casting a small patch of warm yellow light in the classroom.

The Empress stared intently at the light bulb, leaning slightly forward, her expression as focused as if she were reviewing a memorial concerning the fate of the nation.

Chi Linglong couldn't help but crane her neck to look at the hand-cranked generator, her brows furrowed so deeply they could trap a fly.

"This is how a generator works..."

Electromagnetic induction.

When a coil rotates in a magnetic field, it cuts magnetic lines of force, and a voltage is generated at both ends of the coil.

When the coil and the light bulb are connected to form a closed circuit, current will flow through the light bulb and light it up.

The thermal power plant in Lianhai County operates on the same principle as this hand-cranked generator, except that the driving coil is not driven by a human hand, but by high-temperature, high-pressure steam generated from burning coal.

Steam drives a turbine, which in turn drives coils that rotate at high speed between giant magnets, generating electricity to power the entire city.

The teacher explained things in a simple and easy-to-understand way, from electromagnetic induction to thermal power generation, and also briefly mentioned hydropower and wind power generation.

The Empress listened attentively, and after class, she even went to the front of the classroom to ask the teacher a question privately:

"Teacher, what kind of oil does that generator you mentioned burn?"

The teacher shook his head and corrected him earnestly:

"It's not oil, it's coal."

Coal is burned to boil water, the water is heated into steam, the steam drives a turbine, and the turbine drives a generator.

Lianhai County currently uses thermal power generation, but theoretically, hydropower, wind power, and solar power can all generate electricity.

Hydropower generation relies on river water rushing down from a high place to drive a water turbine. It does not require burning coal and only needs a river with a fast enough current.

Wind power generation involves erecting several large windmills in windy areas. When the wind blows, the blades spin, driving a generator to produce electricity. It's cheaper than burning coal, but it's not very stable during windy and rainy weather.

The Empress nodded thoughtfully.

She thought of the major rivers in Jiangnan and the strong winds along the coast, and began to consider which places were suitable for building hydroelectric power stations and which places could be used to erect large windmills.

Lin Mo stood to the side, clearly seeing the fleeting calculation on her face, and secretly found it amusing.

This empress is quick to learn; she's already starting to figure out how to develop new energy sources on her own territory.

However, she has no industrial foundation whatsoever, so it's probably just wishful thinking for her to try to do these things!

Over the next few days, the Empress conducted a thorough inspection of Lianhai County.

Lin Mo accompanied her throughout, taking her to every corner of Lianhai County, from modern schools to vocational training schools, from the blast furnace workshop of a steel plant to the glass blowing station, except for military academies.

On the fifth day in Lianhai County, the Empress finally boarded the giant iron-gray ship as she had wished.

Chen Laohai personally took the helm, his dark face full of pride, and led the Empress on a tour from the cockpit to the engine room, and from the passenger cabin to the cargo hold.

The Empress lingered for a long time, captivated by the cockpit's steering wheel, compass, and electronic charts.

The deafening roar of the massive diesel engine in the engine room was so intense that she covered her ears and circled around it. When she came out, she still had a lingering fear on her face.

Finally, she stood on the ship's railing, looking down at the surging sea, then back at the towering chimneys and the thick masts like ancient trees, and remained silent for a long time.

"Captain Chen, your ship..."

How many people can it hold?

The Empress suddenly spoke up and asked.

Old Chen scratched his head and smiled憨厚ly:

"To answer your question, we usually only need 30 to 50 people to go out to sea for fishing."

But in wartime...

Our elders said this ship could fit two or three thousand people in a war.

The Empress then pointed to the heavy machine gun at the bow of the ship and asked:

"What is that?"

Remembering Lin Mo's previous instructions, Chen Laohai remained expressionless and made up a story:

"That's for catching fish. It's much faster than a harpoon. One burst can hit a school of fish hundreds of paces away."

"It was invented by us adults, and it saved us a lot of money on fishing nets."

The Empress nodded and asked no further questions.

On the afternoon the inspection ended, the Empress called Lin Mo to the hotel suite that had been arranged for her.

Outside the window is a vast blue ocean, and the afternoon sun shines through the glass, casting dappled shadows on the floor.

The Empress sat behind her desk, tapping her fingers lightly on the surface. When she spoke, her tone was much calmer than a few days ago, yet it carried a heartfelt sincerity.

"Lin Mo, I will be setting off for Jiangnan tomorrow."

She paused, seemingly considering her words, then looked up and stared directly into Lin Mo's eyes.

"These past few days in Lianhai County, to be honest..."

Eye-opener.

"After being emperor for so many years, this is the first time I feel like a savage who has never seen the world."

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