Wang Shao'an noticed that Ding Yu was not only shabby in clothes, but also unkempt, and he definitely looked like a begging for food when he walked on the street, worthy of being a scientific research maniac. Pen & Fun & Pavilion www.biquge.info

Ding Li took Wang Shaoan to a basement, an underwater room to be precise. The space is quite large, and the periphery is a structure made of bamboo, but it is sealed and does not leak.

Ding Li pressed something on the bamboo wall at the entrance, only to hear a snap, and the underwater room instantly lit up.

On the surrounding blue edge, Wang Shaoan saw familiar objects connected in a line, the most primitive black silk lamp, illuminating this underwater room. It's just that the outer layer of this lamp is not wrapped in a glass bubble, and it is directly exposed to the air.

Wang Shaoan looked at all this in surprise, and said: "I seem to have returned to the 21st century, where is your electricity?" As he spoke, he turned his head to look for it.

"Hahaha, don't look for it, the power system is not here." Ding Li laughed.

"After you, will there be an Edison? When the time comes, you get the steam locomotive out again, and Stephenson will have nothing to do, and then you will rebuild the car, and Mr. Benz will not have to be born, and he will rebuild the plane, the tank, the artillery...... Cannon! When Wang Shaoan talked about the cannon, he stopped, because in the center of the laboratory, several cannons were neatly placed!

Thick metal barrel, mounted on a gun carriage.

"One, two, three, four, five, six! Hold the grass, six cannons! Wang Shaoan walked to the side of a cannon, which is the most primitive metal control cannon, the barrel wall is very thick, and the barrel is slightly larger than the front end, which greatly ensures that the shell will not explode when firing, the gun carriage has wheels, and the gun carriage can adjust the angle and direction of the barrel.

"The caliber is 118 mm, the effective range is two thousand meters, the longest range is three thousand meters, and the best lethal range is 1,500 meters. Defend the city with a sharp weapon, and attack the city with a killing weapon. The reason why this room was set up underwater was to prevent misfire during the development of the cannon. If I put it on it and bomb the flat-headed people with one shot, then I won't be able to eat and walk away. In this way, the bombardment into the water greatly avoids this danger. Ding Li explained.

"And where did you start experimenting?" Wang Shaoan asked.

"Pull this cannon into the mountains and have a good time."

"What if you get water in the lab?" Wang Shaoan continued to ask.

"Haha, I had already flooded one room because of a mistake the year before last, and this one was built later. Let's go, I'll show you one of the things I'm working on! Ding Li laughed and walked out of the underwater room with Wang Shaoan.

This mansion is almost larger than the palace of the king, which covers an area of at least two European estates.

After stepping out of the building above the lake, Ding Li led Wang Shaoan into a stone brick house, and some strange roars came from inside.

When he entered the door, Wang Shaoan was already mentally prepared, but he was still surprised when he saw this thing: this was a boiler room.

"Lord Ding!" The two bare-chested sweaters in the room, after seeing Ding Li, immediately bowed.

In the middle is a huge machine, the steam engine.

The cylinder was running, making a "thump" sound, which was exactly what had just been heard outside.

"You've got a steam engine!" Wang Shaoan was surprised.

"Of course, the steam engine is not a difficult thing to build, as long as there are materials, I can build an internal combustion engine." Ding Li said with a natural expression.

Ding Li opened a circular raised door about one meter in diameter at the iron box, and a stream of hot gas rushed out in an instant, and the coal inside was burning vigorously.

"See, this is a coal stove, and it's burning coal. The top is the boiler, which contains water, after the water is boiled, the steam formed follows a metal pipe, leads to the cylinder at that end to push the piston movement in the cylinder to generate power, the cylinder is provided with an insulation layer, and then the steam goes down the gas pipe into the condenser for cooling, and then returns to the boiler, reciprocating in turn, only need to add coal when the fuel is insufficient. A simple generator is connected to the outside of the cylinder, and the electricity in this house is generated by this machine. Ding Li explained.

"If the cylinder cracks or something, it won't be dangerous?" Wang Shaoan asked.

"This is a relatively primitive machine, if the cylinder bursts, it will only cool and contract quickly when it encounters cold air without exploding. After all, the pressure of this steam is not large enough, so it can only be used as an ordinary generator. But I'm working on an ultra-high-pressure steam engine in another lab, so why don't you check it out? Ding Li said.

"Let's go!"

Ding Li took Wang Shaoan and walked inside for a while, only to see a large house in the middle of a huge open space, and the tall chimney kept smoking out. The roar of machinery can be heard in the distance.

When I entered the house, I saw that there was a larger steam engine inside, the structure was particularly complex, and many parts were exposed outside, the most obvious being the small wheels at the back of the steam engine and the large wheels at the front end were tied with belts and were rotating.

"This thing, it's a three-cylinder one!" Ding Li looked at this big thing and said proudly.

"Your Excellency!" There were seven or eight people in the house, who were working in different places, and when they saw Ding Li, they saluted one after another.

"I saw that turntable, it was the pressure pointer, the pointer exceeded the red line, it represented danger, but it was far from the point of explosion, and the black scale behind it was the real criticality. Next to it is a thermometer, which shows the temperature of the steam, and the last one is a power meter, which represents the amount of power being output in the cylinder. This steam engine has just been developed, and it is now in the testing stage, and once it has been tested without problems, it can be put into use, but I don't know what it will be used for...... You know, I only know about inventions, but since you're here, I don't have to worry about it not working, I'll wait for you to drive. Ding Li pointed to the roulette wheel on the steam engine.

"Hehe, this is a good feeling." Wang Shaoan looked at this huge machine and slowly had an idea in his heart.

A tall, thin young man jumped off the machine, looking very capable and unkempt like Ding Li.

"Master, you're here! The first stage of the test is almost over, the temperature is three hundred, the three cylinders are functioning completely normally, and the power is sixty percent. The young man said.

"Come, let me introduce you, this is my apprentice Gade's assistant, where is it. This is the king...... Shao'an, you can call him Lao Wang. Ding Li introduced the two to each other.

"Lao Wang...... Hello. "He Fang saw that this person who was about the same age as himself felt a little awkward to call Lao Wang, but since the master called it like this, then call it like this.