Song Yingxing and the four craftsmen, plus Lao Su in the workshop, it can be said that these six are already at the peak or close to the peak of the world's handicraft industry, even if Lao Su is a little worse, he has long been worried about eating and drinking.

Especially Song Yingxing, if he is a Jinshi and enters the official career, his influence will surpass Xu Guangqi, and then solve the situation that Zhang Guowei is running north and south alone, maybe this Ming Dynasty is a different scene.

Zhang Zhen did not hesitate to reward him, and his prestige and official position were promised, and this thing naturally could not be missing, especially Song Yingxing had already seen the package a few times, although there was no eagerness on his face, I am afraid that his heart was already like a cat.

Zhang Zhen untied his burden and said with a smile: "This flashlight is one for each person." As he spoke, he took out one and handed it to Song Yingxing.

When the others heard this, they all got up and gathered around, and in the blink of an eye, they all got up and gathered around, and in a blink of an eye, they played with joy and amazement, and for a time the light in the room was bright, and it was extremely dazzling.

This strong light flashlight basically has five kinds of light, strong light, medium light, low light, flash, and SOS distress signal light.

The flash and signal flashed, everyone didn't know the depth, and they all looked at Zhang Zhen's eyes several times, and Zhang Zhen was dizzy.

Zhang Zhen had a headache and said: "The things are yours, except for the ones in Mr. Song's hands, the others are all closed, and they will study it after they go back to their respective homes, which is dazzling." ”

At this time, Zhang Zhen's words were not stingy with Chrysostom's words, and when everyone heard this, they hurriedly turned off their flashlights, and the house finally returned to normal.

The two headlights on the assault boat, although Song Yingxing was curious, after all, there were two feet of the boat, and it was common to be incomprehensible, there must be a coincidence, and this flashlight was different.

A gadget that is only three inches long, and there is no flame, how can it be so bright, Song Yingxing can't understand, and he doesn't have time to think deeply, so he said eagerly: "Lord, forgive Song Yingxing for his shallow knowledge, I really don't understand where this light comes from, and I ask my lord to solve his doubts." ”

Song Yingxing's question, he really asked Zhang Zhen, Zhang Zhen understood the basic structure of the dry battery, and even stripped the waste battery when he was a child, took the black carbon rod inside to write, and scribbled the brick wall of the old house at home, and was beaten by his mother.

The key is that at this time, the strong light flashlight is basically a lithium battery, what is the difference between the structure of this lithium battery and a dry battery, Zhang Zhen really doesn't know.

This is the price of growing up, the curiosity and curiosity of childhood are replaced by the doctrine of bringing things to the growing up, and everything can be solved without seeking much understanding.

Zhang Zhen smiled: "Want to know? Open it and take a look, Lao Xia, you take it. ”

With Lao Xia illuminating, Song Yingxing quickly turned off the flashlight, looked at the structure carefully, and gently pulled it out, but he didn't pull it out.

At that time, the structure of threads was not yet popular, and Zhang Zhen pointed out: "It's unscrewed." ”

I believe that this will be a gift from the emperor soon, the lord said casually, this Mr. Song actually took it seriously, and the rest of the people did not dare to breathe, and the atmosphere was extremely dignified.

In front of everyone's eyes, Song Yingxing's hands trembled and unscrewed the threads on the flashlight.

Gently put the tail of the flashlight on the table, and saw that the contents seemed to be moving, and with one hand crooked, the battery slipped on the other hand.

Zhang Zhen explained: "This is called a battery, the flashlight can shine, and it all depends on it to provide electricity, how to say it, it is similar to lightning in the sky." ”

"Thunderbolt's lightning?! It turns out that there is a little Lei Gong living in it, no wonder it is so bright. ”

As soon as Ermao said this, Zhang Zhen couldn't cry or laugh, but there were several echoes that suddenly realized.

"Oh! That's it! ”

"I see! Lei Gong, no wonder! ”

Zhang Zhen said with a smile: "Whether it is Lei Gong or others, electricity is a thing that is very useful, since ancient times, the sunrise and sunset rest, with it, the world will be turned upside down." ”

"In terms of production, there is no wind and rain in this year's wheat harvest, what if there is a disaster? If the black light is blind, grabbing it is tantamount to a fool's dream. ”

"And the plague of locusts, everyone understands the truth of moths fighting fires, with such a bright light, will the locusts follow the light to throw themselves into the net?"

You Ermao muttered: "This flashlight is not hot, and the locusts can't burn to death when they hit it...."

Zhang Zhen hated the anger that iron could not become steel: "Ermao, you are losing your land to guard the huge Dushan Lake, and the river workers have not fallen once, and this canal has been dug in vain?" All this strength is in vain? Can't we hang on the water? Drowning is not death? ”

Zhang Zhen asked a few times in a row, and everyone listened to the idea that it was a spiritual thing, and imagined again and again, in addition to drought and flood, plague and locust plague are also topics that people talk about.

Although Zhang Zhen's words were not full of voice, You Ermao sounded like spring thunder, and his strength was in vain? Or are you blind? Blinded by lard again? What about such a big Dushan Lake, why don't you think about it too much?

With a plop, with remorse, You Ermao knelt down and said: "Ermao is stupid and stupid!" It's just that you can't share the worries of the lord, and you still say such stupid things to block the lord! Please punish the Lord!! ”

"Hey!" Zhang Zhen sighed, got up and helped You Ermao up, and sighed: "It's just a matter of knowledge, what are you punished for?" You don't need to think about it, when our academy is built, you will study for a few years, and then you will understand everything. ”

You Ermao nodded ashamedly, but Song Yingxing and Zhou Qing on the table of the Eight Immortals were all sitting on wax, what does the lord want to improve the students' knowledge? The point is that as a teacher, you don't understand!

Zhang Zhen sat back on the main seat and said: "Science and technology are the most rigorous things in the world, and sometimes they can draw inferences from one case to produce qualitative changes and even magical effects, but this is based on the real and huge basic science and basic technology, such as this moth to fight fire, there is no electricity, this moth to fight fire is impossible to achieve only by candlelight firewood, and how did this electricity come from?" The understanding, purification, processing, and physical application of materials involve many aspects, and in this regard, Mr. Song's insight alone, the entire Ming Dynasty is unsurpassed by tens of millions of people, and there is no one to compare. ”

Song Yingxing wanted to say something, Zhang Zhen shook his head, and continued: "That's all for today, except for Mr. Song, Sizhuang and Lao Xia, everyone else will go back and rest, well, if this flashlight doesn't light up, it's not broken, it can be used again if it's charged, remember to give me the battery, and I'll charge you again." ”

Everyone got up and retreated, Lao Xia and his family packed up the chairs and benches, the room was much empty, and Li Sizhuang's nervous heart suddenly rose to his throat.

Zhang Zhen smiled: "Let's talk about the moth to the fire, let's talk about you before going to bed." ”