Vol 4 Chapter 809: A lesson on the front lines of war

Mentioned the knowledge about space tension, after discussion, Yang Yuping decided to add a class to the military scientific research class to give a lecture on space tension.
Knowledge can always be transformed into power. Even if you are on the front line of war, attending classes is still very important.
Admiral Rod passed the application for this class and recalled the students in the military research class.
There were 37 students in the military research class on the front line, but only 32 were able to attend, and the remaining 5 could only listen to the class online through the communication channel.
This class is arranged in the laboratory of the crater.
Before starting the class, Liu and several other researchers were busy preparing experimental equipment.
Because the time is too fast, even the students' seats are not arranged.
When a military scientific research class student walked into the temporary classroom, Liu pointed out the door and said, "We can't afford to do our own chairs and sit in here."
"Do you want to help?" Ye Zheyu was the first to arrive, and took the initiative to step forward to help.
"No, no, you guys find a place and sit down. Classes will start in about half an hour. The professor should be coming soon." Liu pushed his glasses and started filling a pot with a transparent liquid.
Ten minutes before the start of the class, 32 students from the military research class arrived, ten minutes in advance, and the time was accurate.
After all, he is already a soldier in the army and has developed discipline.
Five minutes later, Yang Yu flattened his clothes and walked in and began to lecture: "My classmates, I never thought that one day I will teach everyone on the front lines of the war.
"However, as a student in a military scientific research class, we should have the same will. We are a military scientific research class. We must not only fight for the destiny of mankind, but also constantly acquire knowledge for human scientific research.
"Military and scientific research, this is the true meaning of our class."
Speaking of this, Yang Yuping paused, opened the lecture prepared overnight, and entered the topic:

Today’s lecture is about spatial tension and curvature drive. Research and hypothesis on spatial tension and curvature drive are not new. Scientists have put forward relevant views as early as the 20th century.
"Why is there such a class suddenly? It starts with Fang Yuan's newly absorbed abilities.
"'Evolution of super power characteristics', the name of this ability was named after me. That was more than 30 years ago.
"However, it is a pity that 30 years ago, the'super characteristic evolution' did not encounter the'lightning speed', and there is no subsequent story.
"After Fang Yuan's test, we found an interesting phenomenon. After the energy level of the'lightning speed' evolved, a magical power appeared.
"According to Fang Yuan's own description, this kind of magical force will pull him away in front of him.
"According to the normal power engine thinking, if you want to get the power to move forward, you need to advance through the way.
"From the jet engine, to the chemical propulsion of the rocket, to the ion thruster...All the power engines currently manufactured by mankind are propulsion test engines, and none of them can escape this category.
"Furthermore, judging from human science at this stage, the pulling force generated out of thin air is a phenomenon that violates science.
"After discussing with a few old friends, we thought of a possibility, a possibility that can generate tension.
"If this conjecture can be confirmed, then it can be said that the material technology I am currently studying is not worth mentioning in front of this technology.
"Before we talk about curvature drive, we must first talk about spatial tension.
"First of all, we take apart the word'space tension', put aside'space', let's talk about'tension' first, what is'tension'."
In such a rigorous science class, Niu Dazhi insisted on skinning him, and suddenly said: "I was a junior high school classmate named Zhang Li."
In the military scientific research class, most of them are students. They are young and have a lively personality. When they hear this, they want to laugh, but think of how serious this is a class.
Fang Yuan and the others were squinting at him, especially Eve, if they would definitely have with him.
Yang Yuping was very kind, and said with a smile: "Well, let's take a look at this thing with the same name and surname as your junior high school classmate?"
At this point, Liu came up with a set of experimental equipment.
This set of experimental equipment is a transparent plastic tray with two one-dollar coins placed in the tray and two bottles of transparent liquid next to it.
The liquid is a sharp-nose bottle, which can drip out the liquid drop by drop.
"Let Liu do this experiment. If some students want to look closer, they can also come up." Yang Yuping motioned to Liu to start.
Liu took the conversation and began to say: "Here are two one-dollar coins, which have been wiped dry and laid flat on the table.
"These two bottles of transparent liquid, one is water, and the other is hand sanitizer. I just poured them from the sink in the bathroom.
"Now, let's drop water on these two coins and see what happens."
As he spoke, he dropped water on the two coins.
One drop, two drops, three drops...
The water droplets fell on the surface of the coin, but did not flow down from the coin, but condensed on the surface of the coin.
As more and more water dripped, the water drops clustered on the coin, bulging to form a convex arc, covering the upper surface of the coin like a mushroom, but it did not flow down from the coin.
Seven or eight drops of water were dripped on both coins, and the same situation appeared. The water remained on the coin and did not flow.
"Look, everyone, according to the common sense that water flows to a lower place, water droplets shouldn't stay on the coin. Why does this happen? Is this against the laws of science?"
Liu led everyone to think about the problem, and then continued: "Of course the experiment is not over here. The next thing to do is a set of controlled experiments.
"I need to put a drop of hand sanitizer on one of the coins and see what happens."
As he spoke, he picked up the bottle with hand sanitizer and dropped a drop of hand sanitizer on the coin.
The hand sanitizer touched the water on the coin, and in an instant, the water on the coin seemed to have been punctured, and instantly flowed down from the coin.
On the other side of the coin, the "mushroom" formed by the water droplets is still staying on the coin.
Liu went on to say: "At this point, some classmates may have to say, maybe a coin can only withstand eight drops of water, and one more drop will not be able to withstand it.
"If there is no control group, there is really no way to rule out this suspicion. However, this is the rigor of the experiment."
As he spoke, he picked up the bottle of water and continued to drip on the second coin.
Nine drops, ten drops, eleven drops...
Until eleven drops, the water on the coin still stopped on it, but the "mushroom" got bigger and bigger.
"Okay, I can only get to this point. If it drops again, I really can't hold it."
Liu made a joke and everyone laughed: "Why can water stay on the coin? The answer is tension, the tension of water."