"Senior Yang, since Gan Daochang has a way, let's listen to it first." Yan Fa was a little dizzy by Gan Shi's flickering, but he still felt that what Gan Shi said made sense, and more importantly, the problem of vacuum bulbs was too difficult.... Whenever there is any hope, he doesn't want to miss it.

Yang Chi thought for a while and said, "Mr. does not object to the spread of science to the public, the gentlemen in the school have studied science, if the two gentlemen are willing to take up positions in our school, they can learn the art of science, if they are unwilling, even if Gan Daochang does have a way to solve the vacuum problem of the light bulb, the kid is not willing to listen." ”

Zhang Zhen and Gan Shi glanced at each other and nodded, anyway, they will not lose their flesh.

At this time, Confucianism was not as exclusive of foreign doctrines as it was later, and in this era, it was good to have something to learn, and few people were qualified to pick and choose.

Seeing that the two agreed, Yang Chi immediately went back to the laboratory and turned over a bunch of contracts, looking at the thick stack of contracts, Zhang Zhen suddenly felt that he had fallen into the trick with Yang Chi....

But looking at this contract again, there is basically no restriction on life, and even on the dissemination of science, basically how many class hours should be guaranteed in a month, and how to calculate wages and salaries.

Ma Qiang has always despised contracts that restrict the freedom of employees, in any era, employees want to leave, either because the treatment is not enough, or the heart is broken, when a person really wants to leave, but you force to stay... Promise me not to lick the dog, okay.

After the two of them finished signing, Yang Chi asked Gan Shi to say the so-called solution.

Gan Shi stroked his beard, and said with an old god in the look, "I heard that you can use mercury to make a temporary vacuum in the bulb, but after removing the bulb, the air will flow into it, and the poor road saw that the fire over there was barbecuing glass, it seems that this glass can be easily burned, but such a furnace fire will never burn the copper wire, since this is the case, why not fix the copper wire in it first, leave a certain length outside, and then wait for the vacuum to burn the glass, squeeze it hard, so that the inside of the bulb is a vacuum, Wouldn't it be perfect to have a copper wire on the outside to install the lamp cap you mentioned? ”

"Wonderful! How did I not think of that? Yan Fa patted his head, rushed into the laboratory and began to do it according to the method Gan Shi said.

Gan Shi raised his head at Zhang Zhen, how about it, it still depends on the means of poor Dao.

Cut, Zhang Zhen tilted his head and didn't want to pay attention to this old way.

Why didn't I think of it...

Yan Fa and Yang Chi did it a few times according to the idea that Gan Shi said, and then made a light bulb that they were satisfied with, and then installed the light bulb and started to power it on.

The light of the incandescent lamp made Gan Shi and Zhang Zhen intoxicated again, what kind of truth can make a piece of black bamboo emit such a light.

The test of the light bulb takes time, and while the light bulb is on, Yang Chi took the two of them to go through the formalities, and the two of them will become the glorious Mr. Red Star Camp School from now on.

After another five days, the light bulb is still on, which has exceeded the original light bulb too much, although I don't know how long it can be lit, but it can be regarded as a phased success, Yang Chi and Yan Fa, who have long been impatient, will let the logistics team send the new light bulb to Yangshugou in the past five days, and also attached a letter to inform Gan Shi and the two of them.

As soon as they saw off the logistics team, and before they could go back for a long time, Yang Chi and the others heard a commotion in the distance, and the two glanced at each other, which was the direction of the camp entrance.

Yang Wanli's face had reached the highest peak, he stared at the convoy that had left, and scolded, "Ten catties of gold cakes, why didn't he grab it?" ”

Lin Huan was holding a box in his hand, which contained edicts and seals, and he sighed, "Robbing is not as profitable as this, now that the eunuchs are in charge, these angels will go back to repay, if they give less, when the time comes, it will be a prison sentence." ”

"That's too much!"

"It's not much, only ten catties of gold can avoid a big disaster, how can it be too much?" Lin Huan thought about it, he looked back at Guo Yin and said, "Tell the whole camp the good news immediately, our Red Star Camp can be regarded as having a foundation." ”

"This is the same, the great Shangzai, placed in the former Qin, that is the top lord!" Guo Ping is also happy, Qin's title system has also changed many times, when Shang Ying was a guest secretary, Da Shangzao was the highest lord, and then it continued to increase, and then became the sixteenth lord.

But even so, this is also the title of eight hundred stones, which has exceeded the county order, although the Red Star Camp has become more and more prosperous before, it has always been white up and down, and Ma Qiang's Maocai identity has not been realized, if it were not for the aura of plague curing, the Red Star Camp would have been swallowed by various forces long ago.

In the late Han Dynasty, an era when the family was the king, it was a sin for you to have so much property in a white body.

- Yangshugou Mine

At this time, the Yangshugou mine has changed greatly, if someone looks down from the air, they will find that there are more waterwheels on the river on the edge of the mine, and next to these waterwheels are wooden houses, and there is a big scary mill outside the wooden house, from time to time people throw all kinds of ores into the mill, let the mill grind these ores into crushed stone and then take out the backup.

Occasionally an explosion can be heard in the distance by the river, which is Ma Qiang trying to blow up a mine with nitroglycerin.

"Phew, phew... This amount seems to be a little larger. ”

Ma Qiang walked out of the bunker with a big gray face, Yue Liang stood beside him, Yue Liang's eyes were brighter than his name, since Ma Qiang first tried to use this oil to fry the mine, Yue Liang had this expression.

Last time, I borrowed the power of the gods to obtain thunder and lightning, and now I can actually use the thunder in explosives, Ma Lang is really powerful.

A little later, Xian Yufu is constantly thinking about how much change this terrible explosive will bring if it is used in war.

At the very least, the so-called impregnable walls are a joke.

It is true that nitroglycerin is very unstable, but it is not without a solution, which is to add impurities to nitroglycerin.

The Nobel Prize of later generations added wood powder, calcium carbonate, saltpeter and the like to nitroglycerin, so that the stability of nitroglycerin was strengthened, but even so, nitroglycerin is still a very dangerous explosive, basically will not be used directly, it is used as a secondary explosive, and if you want to completely solve this problem, you must find a mineral called diatomaceous earth, or directly nitrocellulose.

Ma Qiang knows that there is diatomaceous earth in the north, but it is not in Beijing, where it is now, but in the Jilin region further north, if it goes to the south, Ma Qiang does not have it now, so he can only use this more dangerous sodium dynamite.

Ma Qiang didn't want to use explosives to open the mine at first, but when he saw the miners knocking down half a frame of ore with a pickaxe for half a day, he couldn't stand it at all.

This kind of explosive is too dangerous, and you still have to find diatomaceous earth or something in the future.

Or find some people who are not distressed by the explosion to operate.... Is there anyone in the Wa Kingdom now? Labor export to find out.