Gravitational force is one of the four fundamental forces of the universe alongside the electromagnetic force, the strong interaction force, and the weak interaction force. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

As a force that is most easily and directly experienced by humans in the macrocosm, gravitation and its laws are the cornerstones of classical mechanics.

Experiments that want to let students who have never been exposed to physics understand what "force" is, and lead to classical mechanics and Newton's three laws, gravitational force, is undoubtedly the best choice.

Of course, maybe this little experiment designed by Su Mufeng is a little bit different...... Ahem.

Su Mufeng looked at the more than 10,000 children in space and smiled.

At this moment, the entire void and empty cosmic space is almost full of rampaging students.

On the top right of them, is the mass of 5.98x10?? kg, with its terrifying planetary gravity, makes it impossible for all low-mass objects within its orbit to escape the constraints of the earth's gravity circle.

In an absolutely stationary state, a terrifying gravitational force was forcibly exerted, and the acceleration of all people soared to the extreme in an instant, speeding towards the earth in the sky.

Because more than 10,000 people sat in the venue at the beginning, the positions were very close, and "the mood may be a little nervous", so during the experiment, some "small accidents" accidentally occurred.

Such as......

"! This is the first time you've knocked me off! ”

"Disperse! Scattered! I am teaching Li Yunlong under the subordinates, listen to my orders, and everyone will be divided immediately...... What the hell is the little rabbit that hits me! Don't you understand that Lao Tzu told everyone to get out of the way!! ”

"Senior sister! Your panties are off! Yes! It smells good!! ”

All of this is tragic.

But that's far from the most frustrating......

"Ahhhh!!h

"! Mo Sheng, hurry up and call your wild beast back to eat!! ”

"Get out of the way! It rushed over!! ”

"This is my last month's tuition!!

In the distance, Su Mufeng was still watching the countless children rushing towards the earth's orbit with great interest, and when he heard countless grief-stricken shouts and roars coming from the other direction, he couldn't help but wonder and looked away.

The next moment, he almost choked to death with saliva.

"Chu Yan, your sister! Why is this thing in the database! ”

Against the backdrop of the earth's azure hues, about one or two hundred students were howling wolf howls as they were being chased by a certain steel monster.

From time to time, an unlucky guy was knocked into the earth's orbit and flew into orbit, leaving behind a touching last words that made people cry.

And that "steel behemoth"...... How do you look at it, so familiar?

- Isn't this TM Tiangong-1!?

Su Mufeng's eyes darkened.

Day.

In the afternoon, when I was looking for Chu Yan to ask for a solar system model database, I forgot to tell her that I had cleaned up the messy satellites and space stations in the earth's orbit!

Su Mufeng had cold sweat on his forehead, and quickly scanned the space, and sure enough, there were nearly a thousand students who were chased and killed by various steel monsters.

And that's not even the most critical - the main problem is that there are already a few bright bear children who have climbed onto the ISS!

Still banging and banging and trying to get in!

The bear child who was the leader, Su Mufeng recognized it at a glance, it was the one who had met not long ago.

Behind Li's buttocks, Han Fei was still trembling and tears were about to fall.

The corners of Su Mufeng's mouth twitched, and his heart moved, and he had reached the top of the International Space Station.

He squatted down, looked at a few little girls with a stunned face, and sighed, "Jump by yourself, or will I give you a ride?" ”

The little girls in the back glanced at each other with teary eyes, and then jumped down with their eyes closed with a martyr's heroic expression.

-- The screams of ultra-high decibel levels went farther and farther away.

Su Mufeng nodded with satisfaction and looked at the remaining Li and Han Fei.

It seemed that he still wanted to struggle for a while, and said with a dry smile: "Su Sheng, we are just in the attitude of academic research, and we want to explore this magical thing......"

Su Mufeng's teeth lit up, and he smiled maliciously: "I think that the Earth Lord is the most worthy of study—"

Panicked, he hurriedly pulled up Han Fei as a shield, and said, "Su Sheng, didn't you find that Han Fei was very scared?" Let her rest for a while! I'll take care of her, so don't worry! ”

Su Mufeng looked at Han Fei with a little headache.

The girl's eyes were hazy with tears, and she stared at Su Mufeng pitifully. Wink, wink.

"Sir, Faye is afraid ......"

Su Mufeng sighed, and then smiled: "Okay, anyway, you don't learn the way of mathematics and science, and you don't like this kind of game, so just rest for a while." ”

Han Fei breathed a sigh of relief.

On the side, Li's expression also softened.

But the next moment, it froze on his face.

"As for you, bye bye don't send it~"

"Huh!?"

Su Mufeng flicked Li's forehead with a smile, and then, with a stunned and sluggish expression, the girl turned into a shining star in the sky.

"It's not fair—"

Han Fei smiled slyly and waved his hand at Li.

Su Mufeng took Han Fei's hand and said, "Come, accompany Mr. to watch a holographic VR movie!" ”

……

……

When the master and apprentice returned to their original places, the three saints were already confused, and as soon as they saw Su Mufeng coming back, Mo Zhai was puzzled: "Mr. Su, what are these steel beasts flying all over the sky?" Could it be a creation of a mechanism? But why doesn't it seem to be the same system as the Mohist technique? ”

Su Mufeng snorted, and looked at him left and right, "Who knows?" It's better for us to care about the earth......"

There is no way to change the subject, and in such a short time, he can't make up a complete lie!

Could it be that these are actually Dragon Balls, and by collecting seven, you can summon Ultraman who is lost in the Earth's orbit?

…… Sorry, the saints are indigenous but not retarded.

At this time, almost all the innocent students who encountered artificial satellites and orbital space stations were also knocked away.

Su Mufeng clapped his hands, and a huge holographic projection screen appeared in front of him.

"Alright, now release the latest battle report on the Earth Front! Some of the 10,000 sets of space-based kinetic energy weapons of the 'Jixia' series of space-based kinetic energy weapons that have just been released by the Zhongzhou Strategic Command have already entered the defense line of the earth's atmosphere! ”

Continuing to carry forward the rare bad taste, Su Mufeng completely forgot the proper meaning of being a teacher, cos as a war correspondent, pointed to the big screen in front of him, full of interest.

"Now, let's focus on these warriors who are fighting for the glory of Middle-earth!"

The screen flashed, showing a grief-stricken look on the cute little face.

"Come on! Miss Warrior, please tell us what you think! Whether it is loyalty and love for Zhongzhou, or thoughts and blessings for relatives! ”

"Ahh!!h