Datang's free and easy concubine

Chapter 1715 Surprise
Neither Li Shimin, Empress Changsun, nor Li Zhi paid much attention to Su Cheng and Princess Changle, because their whole bodies and minds were put on the generator that could emit lightning.

Empress Changsun and Li Zhi also looked around and searched.

Su Cheng and the others stepped aside quickly, revealing the generator behind them.Su Cheng smiled and said, "The generator is here."

Li Shimin and Empress Changsun couldn't wait to step forward, and they saw the steam engine and the strange generator in front of them at a glance.

"At the front is a small steam engine, and at the back is a generator, and the steam engine is brought to the generator to generate electricity, and then the light bulb connected to the generator will glow brightly. This is the electric light." Su Cheng explained.

Li Shimin and Empress Changsun were no longer surprised by the steam engine, and their eyes all fell on the generator.

After carefully looking at the generator, Li Shimin frowned and asked, "That's it?"

This strange looking machine is not big, and it doesn't look complicated. It is far from the generator he imagined in his mind.

Su Cheng smiled and nodded, "Yes, that's it."

Empress Changsun's eyes were also full of surprise, and this was far from the generator in her mind. Although the generator was a bit small and looked simple, she did not underestimate it.

Li Shimin asked: "It's getting dark, can we experiment?"

At this time, the sun had already set, and a layer of darkness had been cast in the courtyard, and the servants in the mansion began to light the lamps.

Su Cheng nodded and said, "Yes, everyone is almost here, and you can do it anytime."

Li Shimin couldn't wait to say: "Then what are you waiting for? Hurry up and start! I want to see how the little thing sends out lightning."

Su Cheng waved to the craftsman next to him, and ordered: "Start burning!"

Two craftsmen came to the side of the steam engine with two baskets of coal and hay and started to light a fire. After a while, a raging flame began to ignite in the stove.

Li Shimin, Empress Changsun, Li Zhi, Princess Changle, Princess Yuzhang, and Princess Yuzhang stood on both sides of Su Cheng and watched attentively.

As the flames burned, the steam engine began to run slowly, and the generator also started to run driven by the steam engine.

With the generator running, the light bulbs began to flicker.

In fact, everyone has been staring at the light bulb, because according to Su Cheng's design, the light bulb will light up.

Sure enough, the light bulb suddenly started flickering.

Everyone closed their eyes instantly, it was too flashy!

The moment just now almost blinded their eyes.

Really lit up!

Although they closed their eyes, they were very excited at this moment.

Sure enough, there was a flash like thunder and lightning!

They couldn't wait to open their eyes again, but this time they didn't face the electric light directly, but looked at it from the corner of their eyes, and then they discovered a problem.

The light did turn on, but it kept flickering. How can it be illuminated?

Not to mention lighting, just flickering like this can really blind people's eyes.

Li Shimin turned his head and asked: "Su Cheng, your original intention is good, but the light of lightning is not continuous, but flashes away. The same is true of electric lights now. Although they can emit very dazzling light, they keep flickering." , which can't be used for lighting at all."

Empress Changsun and the others couldn't help nodding after hearing this. Although the electric light is really magical, it's not practical to use it for lighting.

Su Cheng smiled calmly and said, "Don't worry, let the fire burn for a while."

Is there still a turnaround?

Li Shimin and the others waited patiently. The light bulb flickered faster and faster. After a while, it stopped flickering and turned into a bright and stable light source.

Bright and dazzling, it illuminates the entire courtyard as bright as day, and the lanterns hanging around are like the light of rice grains compared to the bright moon in front of the electric lights.

The lamp made by Su Cheng is very willing to use materials. Su Cheng doesn't know how many watts the lamp has, but the wattage is definitely not small anyway.

"It really doesn't flicker anymore!" Li Shimin exclaimed.

"It's really not fire, it's really lightning!" Empress Changsun also sighed in amazement.

Cheng Chumo and the others couldn't help talking in low voices.

"It is indeed much brighter than fire!"

"Yeah, even if you light a big bonfire, it won't be so bright!"

Li Shimin was amazed: "It's really bright. With such an electric light, the train can run at night?"

Su Cheng shook his head slightly, and said with a smile: "It's just not enough. Although it's very bright, it doesn't shine far enough."

Li Shimin and the others were stunned when they heard this. Didn't the photo go far enough?What does it mean?
"Isn't that what the light is like? What do you mean it's not far enough?" Li Shimin asked with some doubts.

Su Cheng smiled and said: "Because the light is scattered, all the light can't be far away, and the light can be gathered together to be able to shine farther."

Li Shimin and the others were stunned and gathered the light together?
How to gather light together?
Although the light can be seen but not touched, how can it be gathered together?
Before Li Shimin and the others could ask, Su Cheng had already stepped forward, picked up a lampshade from the floor of the lamp and began to fiddle with it.

The electric lights that were originally shining all over the sky suddenly changed into a beam of light.

The beam of light hit the south wall at once, forming a huge circle of light on the south wall, which was very bright.

Li Shimin, Empress Changsun and others were all dumbfounded. They had never seen such a vision, let alone seen it, and never even thought about it.

Su Cheng fiddled with the electric light, and the light beam kept moving, passing over the south wall and shining on the distant attic. Even though the attic was far away, it still illuminated the attic very brightly.

Li Shimin was shocked. He finally understood what Su Cheng said before. He said that the electric light is very bright and can illuminate a long distance. With electric light, the train can run at night.

"It's so bright! It's so far away!" Empress Changsun murmured in a daze.

"It's amazing!" Princess Zhenzhu said with emotion.

Cheng Chumo and the others scratched their heads behind them, and they also felt very miraculous, and seeing Su Cheng playing with the electric lights there, they thought it was very fun, and they wanted to go forward and play with the electric lights.

Cheng Chumo and the others just thought that with the presence of the emperor and empress, no matter how much they desire, they can only honestly stay behind and covet.

Li Shimin strode towards Su Cheng, excitedly said: "Show me!"

While talking, Li Shimin reached out to take the light in Su Cheng's hand.

Su Cheng took the electric light and quickly hid for a while, and quickly said: "Your Majesty, don't touch it, this is electricity! Although it is wrapped in rubber, the connection is not well wrapped. If your Majesty accidentally touches it, it will be dangerous! "

(End of this chapter)