Chapter 793: Space-Based Cannon
"Beast, like the moon, has a tidal locking effect." Lang Xiaonian emphasized this term.
"Tidal locking effect? What the hell?"
This belongs to the deeper knowledge in astronomy. Students who are not majors in astronomy will not see this term in textbooks.
Therefore, it was the first time Niu Dazhi heard this term.
Lang Xiaonian liked to popularize astronomy with his classmates, so he started to explain: "Let's take the moon as an example.
"The moon is a sphere, and the distance from each point of 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 is closer, so the gravitational force it receives is naturally greater, while the gravitational force on the back of the moon is smaller.
"The difference between the two may seem small, but there is a difference. This difference, a day or two, or even a year or two, will not have any significant impact.
"However, over hundreds of millions of years, this gravitational difference can make a big difference.
"The moon itself is an irregular sphere, which changes a little bit under the uneven gravitational force, resulting in the deceleration of the moon's rotation.
"Until the moon's rotation is slowed down so that one side is always facing the earth, this change will stop, so that one side of the moon will always face the earth, which is tidal locking.
"Similarly, there is the same tidal locking effect on Orc.
"Therefore, one side of Beast One is always facing the star-beast planet, so the giant cannon built on Beast-beast can lock half of the star-beast planet forever."
Niu Dazhi half understood, but felt very powerful.
He knew that Lang Xiaonian didn't dare to use this knowledge to fool himself, and he knew that he was thinking too much, so his expression was a little unhappy.
Lang Xiaonian didn't say enough, and continued to say enthusiastically: "Actually, it's not just the moon and Beast, Jupiter is also the same. Jupiter's mass is very large, and there are several satellites that are the same as the moon, with the same rotation period and revolution period. Always face Jupiter.
"It's not just moons that are tidally locked to planets,
Based on observations of other star systems, scientists have also discovered that some planets are also tidally locked by their stars. "
Niu Dazhi's eyes lit up when he heard this, and said: "If you say that, isn't it true that there are some planets, one side is always daytime, and the other side is always nighttime."
"That's right, a planet that is tidally locked by a star does have eternal night on one side and eternal day on the other side." Lang Xiaonian nodded in affirmation.
"Interesting." Niu Dazhi was going to cover up the question he raised just now.
Eve was not so easy to fool, and snorted: "How is it? You just argued with me, now you know you were wrong."
Niu Dazhi grimaced, also snorted, turned his head and left: "I'm going to practice my new ability. I'm a man who is destined to become the barrier of the empire. I don't have time to waste."
Eve winked at him, showing a triumphant expression, very happy.
...
Fang Yuan stood in front of the base of the cannon, pinched his chin, looked up at the empty mid-air, imagining that a 100-meter cannon was about to stand here, and there was a faint turmoil in his heart.
Just imagine a little bit, and you will know how terrifying this giant cannon is.
The length of the Shenzhou is not more than 100 meters, and it can be fully loaded with 1,500 people.
Such a space battleship is only more than a hundred meters away.
Now, the barrel of a cannon is only 100 meters. This kind of cannon is going to destroy stars. Even if it can't destroy planets, it is probably no problem to bomb a satellite.
"Eve, is such a long barrel an electromagnetic gun?" Fang Yuan asked.
"According to the information I obtained, it should be an electromagnetic kinetic energy gun, but I don't know if the shell has a warhead." Eve replied.
Such a 100-meter-long electromagnetic gun, and it is a space-based gun, is simply a devastating threat to the life of the planet below.
...
the following few days.
In addition to preparing for the battle, the students in the military scientific research class would go to Beast Guard One to see the construction progress of the 100-meter cannon whenever they had time.
Finally, a month after occupying Beastguard Yi, the barrel of the 100-meter-long cannon stood up.
When I saw this giant cannon appearing in front of my eyes, the exaggerated picture was far more spectacular than I imagined.
"I'll go! It's so big and so long, the gun barrel alone can stab the star beast to death." A student in the military scientific research class sighed.
"Are you sure it was stabbed to death, not smashed to death?" The other person laughed.
After the barrel of the space-based cannon was erected, Eve's father, Li Guihua, came to Beast Guard One and brought a team from the Weapons Research Institute to be responsible for the equipment of the space-based cannon.
As soon as Eve saw her father coming, she immediately asked about the data of the space-based cannon with sparkling eyes.
"How powerful is this cannon? Can you let me play it again at that time, and the base is longer than the Shenzhou, which is too cute." Eve stood under the space-based giant cannon, breathing quickly with excitement up.
Several other people in the team were also very curious about this space-based cannon.
A group of people stood under the pedestal of the turret, drooling at the huge gun barrel with their heads raised high.
"I really want to have a shot." Ye Zheyu sighed.
"I want to keep fighting, it's best not to stop." Niu Dazhi answered.
"Go away, you two! If you want to have a cannon, I will come first." Eve waved her hands to drive the two guys away.
"Girls, what kind of guns are you playing, you should be a lady." Fang Yuan persuaded solemnly.
...
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