One Punch Star Annihilation

"Yuweiyi, like the moon, has a tidal lock-in effect." Lang Xiaonian emphasized this term.

"Tide lock-in effect? ​​What the hell?"

This belongs to the deeper knowledge in astronomy. Non-astronomy students cannot see this term in textbooks.

Therefore, it was the first time Niu Dazhi heard this term.

Lang Xiaonian liked to give general astronomy to the same subject, so he began to explain: "Let's take the moon as an example.

"The moon is a sphere, and the distance from each point on the moon to the earth is different, so the gravitational force of the earth on the surface of the moon is not uniform.

"This uneven gravitational force is the so-called tidal force, the tidal force caused by the earth on the moon.

"To put it simply, the side of the moon facing the earth, when the distance is close, will naturally receive a larger gravitational force, while the gravitational force on the back of the moon will be a little smaller.

"The difference between the two seems small, but there is indeed a difference. This difference, two days a day, or even a year or two, will not have any significant impact.

"However, if the time is hundreds of millions of years, this difference in gravitational force will have a big impact.

"The moon itself is an irregular sphere, which changes little by little under the action of uneven gravitation, causing the deceleration of the moon's rotation.

"Until the moon's rotation is decelerated to one side facing the earth forever, this change will stop, so that one side of the moon will always face the earth. This is tidal lock.

"Similarly, Yuweiichi also has the same tide lock-in effect.

"Therefore, there is one side of Beast Guards that always faces the star beast planet, so the cannon built on Beast Guards can always lock half of the star beast planet."

Niu Dazhi could not understand, but he felt very good.

He knew that Lang Xiaonian didn't dare to use this knowledge to fool himself, and knew that he was thinking too much, so his expression was a little unhappy.

Lang Xiaonian has not said enough, and continued to say with interest: "In fact, it is not only the Moon and Beastman, but Jupiter is also the same. Jupiter has a large mass. There are several satellites that are the same as the moon. The rotation period and the revolution period are the same. Always face Jupiter.

"Not only satellites will be locked by planetary tides. Based on observations of other star systems, scientists have also discovered that some planets are also locked by stellar tides."

When Niu Dazhi heard this, his eyes lit up, and he said, "If you say this, isn't it because of some planets, one side is always daytime and the other is always night."

"Yes, planets locked by stellar tides are indeed eternal night and day." Lang Xiaonian nodded affirmatively.

"Interesting." Niu Dazhi was about to cover up the question he had just raised.

Eve was not so foolish, and hummed: "How about it? You just banged against me, now you know it's wrong."

Niu Dazhi snorted, turned his head and left: "I'm going to practice my new abilities. I am a man destined to become a barrier to the empire. There is no time to waste."

Eve winked at him, showing a triumphant expression, very happy.

...

Fang Yuan stood in front of the base of the giant cannon, pinched his chin, looked up at the empty midair, imagined that a 100-meter giant cannon was about to stand here, and there was faint waves in his heart.

Just imagine how terrifying this cannon is.

The Shenzhou is not more than 100 meters long, and it can reach 1,500 people with a full load.

Such a space battleship is only more than 100 meters long.

Now, the barrel of a gun is 100 meters long. This kind of gun is going to destroy the star. Even if it can't drop the planet, it's probably fine to hit a satellite.

"Eve, this long barrel is an electromagnetic gun, right?" Fang Yuan asked.

"According to the information I found, it should be an electromagnetic kinetic energy cannon, but I don't know whether the cannonball has a warhead." Eve replied.

Such a one-hundred-meter-long electromagnetic gun, and it is a space-based gun, is a devastating threat to the life of the planet below.

...

the following few days.

In addition to preparing for battle, the students of the military scientific research class will run to the beast guard whenever they have time to see the progress of the construction of this 100-meter cannon.

Finally, one month after occupying Beast Guard One, the one-hundred-meter-long cannon was erected.

When I saw this giant cannon appear in front of my eyes, the exaggerated picture was far more spectacular than imagined.

"Let me go! It's so big and long, just a gun barrel can stab the star beast to death." A military research class student exclaimed.

"Are you sure you stabbed to death, not smashed to death?" The other person laughed.

After the barrel of the giant cannon was erected, Eve's father Li Guihua came to Yuweiyi, and brought a team from the Weapons Research Institute to take charge of the equipment of the giant cannon.

As soon as Eve saw his father coming, he immediately questioned the data of the Sky-Based Giant Cannon with bright eyes.

"How fierce is this gun? Can you let me play it again? It's longer than the base and longer than the Shenzhou, which is too cute." Eve stood under the giant cannon, breathing with excitement. Up.

Several other people in the team were also very curious about this giant cannon.

A group of people stood under the base of the turret, their heads up and their heads drooling at the huge gun barrel.

"I really want to have a shot." Ye Zheyu sighed.

"I want to keep playing, it's best not to stop." Niu Dazhi answered.

"You two go away! If you want to shoot, I will come first." Eve waved to drive the two guys away.

"Girls, whatever you can do, you should be a lady." Fang Yuan persuaded seriously.

...

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