Since the Accounting: A Chronicle of the Roman Khanate

Chapter 156 Physics, isn't it amazing!

"Then what's the use of this thing, and that physics?" Tuo Huan asked.

"It's very useful." Guo Kang pointed to the tube: "This thing can prove that the air around us exists and has the same pressure as water. Just like fish living at the bottom of the ocean, we can Live at the bottom of an ocean of air."

"I see." Dmitry was very interested: "Isn't heaven just above this ocean of air?"

"That's not clear." Guo Kang didn't answer directly: "Aristotle was, after all, a pagan philosopher before Brother Tian, ​​and his knowledge of Heavenly Father, Brother Tian, ​​and heaven was limited. It hinders his great contribution in the field of philosophy, but we should not force people of different ages. We still have to study the part that he has not yet dabbled in."

"That's true." The monks all agreed.

"The pressure is so great, why can people still be round? Some people will gain weight?" Tuo Huan asked suspiciously: "For example, look at my sister. Why is she not pressed... Uh, just like Li Anning Ping?"

"Humans are not sealed, so how can you compare?" Guo Kang retorted: "Look at this glass tube, is the top part empty? It is surrounded by mercury and glass tubes, so you can see the air pressure."

"What does a person's appearance have to do with the air pressure?" He said helplessly, "I'm flat, and I still blame the air..."

"what……"

"In short, this device is equivalent to making the pressure of mercury and the pressure of air fight against each other." Guo Kang ignored him and continued to explain: "Mercury finally stops, which means that the forces on both sides are the same. This is because mercury It is very heavy, so it can be seen directly in this way. If it is replaced with lighter water, it will not be so convenient to observe."

"And this device is also valuable to us." He said to several monks: "Bring that elbow pipe here."

One assistant left to pick up the equipment, while the others followed Guo Kang's request and placed the tubes at other angles for everyone to see.

"The pressure of the air can only support such a high amount of mercury, so no matter what shape and height the glass tube can only have so much." In the space, there is hardly any air and no liquid exists. I call this area 'vacuum'."

The monks are used to him saying Chinese words casually, they just treat it as another term and don't care.Huan Huan has an impression.

"I seem to have been introduced by Master Wang. Isn't this a word of the White Lotus Sect?" He pointed out: "These people seem to have a close relationship with the Red Scarf Army at the end of the Yuan Dynasty, so we have also known about it."

"Uh, that's right..." Guo Kang scratched his head: "Anyway, as long as you can express the meaning, I think it's quite appropriate."

"Of course, if the White Lotus Sect is interested, then we can also support it." He added: "The early development of natural philosophy really needed the help of theology to a large extent."

"Maybe they can also enrich their theological research, calculate how many lifeless old mothers can live in the vacuum hometown in the mercury tube, and promote the development of scientific research in Ming Dynasty..."

"Ah..." Tuo Huan was dumbfounded again, unable to speak.

Several people were talking, and the assistant had already brought another tube.This glass tube was thinner than the previous one, but above the long tube was a bulging bubble that looked like a weird hammer.

At both ends of the bulb, a copper rod was inserted, which should have been drilled during production and then fixed with melted glass.

"It looks like the instrument in Brother Tian's hand." Dmitry keenly noticed the similarity: "Just why is it made in this shape?"

"Because of this tool, it needs to maintain a vacuum." Guo Kang pointed to the glass bubble.

Several assistants cleaned up the previous glass tube, filled this tube with mercury, and then stood it up in the same way.The tube is long, and the mercury descends as before, and finally stops in mid-air.

"Look, the glass bubble on the top is a vacuum inside." Guo Kang said: "We used ice cubes to cold compress it, and at the same time used hot iron pliers to shape the glass, blocked and cut off the thin tube below. , so that a relatively stable vacuum glass bubble with electrodes can be obtained.”

"So what's the use of it?" Tuo Huan persevered: "I think this thing is not cheap."

"What's the use of it? If it succeeds, it will be a miracle of physics." Guo Kang didn't bother to talk to him: "Even the half-baked products we have produced now are very useful."

"Show him the light bulb we pulled out by hand," he ordered.

Another monk then made another trip and brought a hollow glass cylinder.It also has electrodes plugged in at both ends, and an additional port in the middle, secured with a valve and leather strip.

"I made a pump out of copper, leather, and lubricating wax to pump air out of this thing." He said, "Although the pumping is not clean, it is enough. There is a little mercury in this glass tube. When using it, heat it up first, and then electrify it to emit special light."

"This kind of light can't be seen clearly by human eyes, but it is very powerful. Do you remember the little bugs I told Wu Han? It can kill all the bugs." Guo Kang said: "Let's find a room house, put this thing inside, and then people supply power to it from the outside, and it will work.”

"The Slavs can't push it all day and all night, but a light bulb is not difficult to get, just find a water mill."

"If these insects can be killed, is there hope for our military rations?" Tuo Huan was still thinking about this question.

"This still needs to be tested, but other uses are worth looking forward to." Guo Kang said: "The vacuum tube has not been tested yet, but I have cooperated with a nearby village to try this mercury lamp."

"Huh? You didn't tell me." Tuohuan asked doubtfully.

"Your sister told me, so I just remembered." Guo Kang said: "Last time she talked with me about the noble ladies around her giving birth, and I told her the cause of puerperal fever."

"I just thought that we could set up a special delivery room and use this kind of mercury lamp in advance to kill poisonous insects in the environment. With the high-concentration liquor we processed with lime, we can ensure a much cleaner environment."

"She didn't tell me, I didn't think of this yet." Guo Kang spread his hands: "So, I found a village with pregnant women and remodeled their mill. When it is necessary to use it, change two gears to turn the power Lead to the specially built room next to the mill."

"The priests in their village have also mastered the prayers and formulas, and they probably know how to use this thing. I tried to let them operate it. Although it is not very stable, it can indeed keep the light on. The whole room is blue and purple. light."

"Pregnant women in their village, as well as those in several nearby villages, gave birth there. The results were very good, and there were no problems. The villagers were so moved that they thought this purple house must have a divine nature. Unfortunately, when people entered Turn off the lights, otherwise everyone would be born in purple tents."

"The priest over there also came here every day, and said that in the future, he wanted all the children in the village to come to us to receive theological enlightenment. Some time ago, Dean John asked if he should just build a school, and that's how he remembered it. "

"No wonder, this is a miracle of physics." Brother Dmitri also said with emotion.

(End of this chapter)