"Pervert!" Seeing Tian Hong staring at her, Su Manman cursed angrily in a low voice and ignored Tian Hong.
After Tian Hong came to his senses, he stopped talking and started playing with the rocks and rotten wood in his hands.
Soon it was time for recess, and the art teacher left happily holding rice paper in one hand and some odds and ends in the other.
"Tian Hong, what are you doing?"
Tian Hong played with rocks and rotten wood and soon attracted the attention of many classmates. However, Tian Hong was usually taciturn and no one asked him. Only Yang Feng asked because of his good relationship with Tian Hong.
"This is an arrangement similar to a perpetual motion machine. As long as its structure is not broken, it can run forever..."
Tian Hong concentrated, held his breath, and placed the last stone on the desk. A small and crude formation was finally set up. This was a "resistance formation". Tian Hong only knew a little bit about it, and at most he could only set it up.
Creating such a large small circle will not be effective in actual combat.
In fact, the resistance formation was the most frequently used formation in ancient times. Because it could not move, it was mostly used at city gates as a defense. This is why most ancient city gates were made of wood and stone.
.
It is worth mentioning that although this kind of resistance formation is not very useful, it is very complicated to arrange. The distance and angle between the stone and the wood are very particular, and the distance and angle can be changed at any time due to changes in the size of the stone and wood.
This is also a huge calculation process, so during the Sui Dynasty, there was an organization specifically for setting up military resistance formations...
"Perpetual motion machine..." Yang Feng looked at the rotten wood and stones on the table with a look of disbelief.
"Haha... Tian Hong, are you still ill? A few rocks and wood are said to be perpetual motion machines." Zhang Dali said with a sneer.
"It is not a perpetual motion machine, but it is similar to a perpetual motion machine. It can provide an invisible force forever. For example, inside the stones and wood now, there is a forbidden space, and no external things can enter..."
While Tian Hong was talking, he put a piece of white paper down from the stone and wood. The paper began to fall, but there seemed to be a layer of transparent glass underneath that blocked the paper from falling. It was floating. Finally, the paper
Falling outside the scattered space made of stones and wood.
"Wow...it's true..." Everyone looked surprised.
Immediately, many people tried to put various things into the circle, but whether it was paper or pens, as soon as they entered the circle, they seemed to be blocked by a transparent glass wall and slipped outside the circle.
The students were all amazed, it was amazing!
"Humph, it's just magic. It really looks like a perpetual motion machine... Eh..." Su Manman's curiosity finally overcame her contempt for Tian Hong. She bent over and lowered her head to carefully observe this seemingly unsurprising thing.
Small circle.
The structure of the small circle is very simple, with some stones and wood mixed together to form a chaotic and irregular circle.
Sumanman's initial contempt gradually turned into surprise, because she couldn't insert a pen into the space above the small circle. The pen seemed to be blocked by an invisible wall.
This small formation was surrounded by crowds, and people were puzzled by this gadget.
"Tian Hong, how did you do this? Can you teach me?" Su Manman said with excitement.
"Secret." Tian Hong shook his head. This was a secret related to their Li family, so naturally he couldn't tell it casually.
"Humph, you are amazing. Isn't it just a magic trick? What's so great about it!" Su Manman pursed her lips and pretended not to care, but her eyes were fixed on that little boy.
From the formation, everyone could see that she was very interested in this thing.
"Hey, isn't this just a little magic? I know, there is a shield made of special materials outside. Let me break this little trick..." The young man who had been following Sumanman all day squeezed
He came in, without saying a word, punched the formation with one punch.
"No...!"
Tian Hong was shocked when he saw the young man punching the rebel formation suddenly. He stood up suddenly and tried to stop him, but unfortunately, it was too late!
"Peng!"
There was a deep muffled sound, and a series of "ordinary" and "ordinary" falling sounds. The people standing around the resistance formation were pushed away by a surging force, while the people standing behind were also pushed away due to the heavy pressure of those in front.
He fell to the ground and became a mess...
"What are you doing?" A rather dignified voice sounded.
At some point, the physics teacher walked in with textbooks under his arm, and a group of students scrambled to their feet. Fortunately, no one was injured.
No one knew that this was a side effect of the resistance formation. In ancient wars, city gates were often broken and city towers collapsed. In fact, it was a chain reaction caused by the breach of the resistance formation.
Although the resistance formation is powerful, it can be broken by external forces. The difference is that after it is broken, it will have the side effect of destroying both the stone and the stone. Generally speaking, when the resistance formation is broken, it is when the city is broken...
"Can anyone tell me the reason?" The physics teacher was short, but a bit ferocious in appearance, with a pair of small eyes looking over dozens of students who had lingering fears.
"Hu...Teacher Hu...it's Tian Hong playing magic..." The young man who hit the resistance formation with his fist hesitated, with a look of fear on his face. He felt it the most just now. There was something in his hand.
A feeling of broken bones.
"Magic! What magic can cause such a big reaction?" the physics teacher asked suspiciously.
"No, dear teacher, it's not magic, it's a structure similar to a perpetual motion machine. It was destroyed by this classmate and caused the consequences just now." Tian Hong wiped the sweat from his face. Fortunately, this resistance formation
It's just some scattered things that I looked for. If I could find suitable wood and stones, it would probably cause * casualties.
In the past, Tian Hong didn't pay much attention to the function of formations. When he was fighting against the Eighteenth Route Anti-King, any formation was like paper in front of him, let alone this resisting formation.
Under the hammer, at least dozens of city walls with resistance formations were destroyed.
The time when I really became interested in the formation was after I captured Hei Wuchang with the giant golden and stone formation.
Now that his body is broken and his soul is weak, if he can make more use of formations, he will be able to fight against Yin Tianzi's ghost soldiers and generals.
"Perpetual motion machine... ahem... Tian... Tian Hong, do you think perpetual motion machines really exist?" The physics teacher obviously knew Tian Hong. After coughing a few times, he was not as rude as he was to other students.
"Yes, everything in nature can form an existence similar to a perpetual motion machine, but we don't know the method. For example, just now I used stones to arrange a small energy circulation system, which can produce the effect of rejecting external forces...
…”
"Tian Hong just arranged a perpetual motion machine?" The physics teacher smiled slightly, hiding his inner disdain.
"Mr. Hu, we think it was just a magic trick."
"Yes, countless scientific experiments have proven that perpetual motion machines are impossible to exist."
"Yes, I think it's magic..."
…
Immediately, a group of students spoke enthusiastically, but they 100% did not think that Tian Hong's formation just now was something similar to a perpetual motion machine.
"Tian Hong, what did you do just now? Can you do it again?" The physics teacher couldn't help but asked curiously when he saw a group of students who were very interested.
"Of course." Tian Hong bent down and focused his gaze on the stones and wooden blocks scattered on the ground just now.
"Classmate Tian Hong, I personally think that in order to prove that the circle you just made is not magic, you should give up the stones and wood you brought." Su Manman stood up and said proudly.
"Of course, anyone is willing to help me pick up a few stones and wood. Branches are also fine. However, they must be branches without decay. Also, the stones must be of a certain hardness. In order to avoid accidents, the stones and wood do not need to be too big...
"
"I'll pick it up!"
The young man who started boxing to resist the soldiers volunteered and ran out quickly. Soon, he came in with a handful of stones and branches and placed them on the podium.
"Please ask Tian Hong to set up a perpetual motion machine for us." The physics teacher smiled, but everyone could see the ridicule in it.
Tian Hong said nothing and strode to the podium.
When Tian Hong walked up, the classroom suddenly fell into a period of extreme silence. The students almost immediately thought of Tian Hong's performance in the previous class.
Seeing that serious expression and firm steps, inexplicably, many students felt a sense of confidence in Tian Hong that they had never had before.