In the next whole day, two days and four classes were not enough, the students also spontaneously went to self-study at night, not to mention a small victory, with the first trophy in their lives, people who have been with Tang Ling for a long time will want to strengthen themselves more and more because of the gap between the two sides, not for the lofty ideal of "catching up with Tang Ling", but hoping not to be pulled away too much.

Especially the students in Class 3 have the conversion spirit value of the spiritual starry sky, and they are the ones who know the gap between themselves and Tang Ling best, so the desire to be motivated will naturally be stronger than ordinary people.

Ordinary people may not be rewarded for their hard work, but if they are gifted, hard work will definitely bear fruit.

A day passed, and when the third day came, several top students in the class finally came up with their satisfactory works. Although it is not vivid, it is also presentable and charming, and has completed the task assigned by Tang Ling, and the students have to come to Teacher Tang Ling to let him fulfill his promise.

"Not bad!" I have seen the works of several top students one by one, and I have made such progress in just one day, which is indeed good.

"Don't be discouraged by other students, this is not in a hurry, and the heart is also very important in it!" Acknowledging the achievements of several top students, Tang Ling did not forget to comfort the other students, and after that, he took a few top students to the deck.

After coming to the deck, Tang Ling first took out two steel plates that looked identical, and then took out two guns with similar appearances.

"Before I teach you new knowledge, let me show you the new knowledge in action!"

"Zhou Ji, Wang Lin. I will first set these two steel plates in two different boats, and then you will sail to the surface of the sea five hundred meters away, and when you go over, you will take a small boat with you, and when you come back with your own boat, you will leave the boat I gave you! "Give the things to the two, Tang Ling commanded.

"Yes, Teacher!" As soon as they came up, they could see the application of new knowledge, and the two happily took the order.

Then, Tang Ling and the other students set up two guns on the deck that were not much different, and waited for the two of them to drive the boat to the designated position.

Ten minutes later, the two returned, and Tang Ling ordered the two again: "You guys come here, one person controls a cannon, and attacks the steel plates on the two ships one after another." ”

"Yes, Teacher!"

After receiving Tang Ling's order, the two hurriedly stepped forward and began to adjust their own guns.

"Teacher, I'm ready!"

"Teacher, I'm ready too!"

"Good! It's time to attack, Zhou Ji fired first. ”

"Yes!"

Receiving Tang Ling's response, Zhou Ji's right hand was attached to the cannon in front of him, and his spiritual power was output, only to hear the sound of "boom", a cannonball was instantly discharged, and accurately hit the steel plate inlaid on the ship facing him on the left.

Zhou Ji, who already has actual combat experience and is from the fleet class, has excellent artillery skills, and when the smoke and dust clear, the steel plate in the eyes of everyone is missing.

"Boom"

Immediately followed by Wang Lin, who also hit with one shot, and when the smoke and dust cleared, the result was different. Zhou Ji's cannon made a piece of the steel plate missing, but Wang Lin's cannon made a hole on the other side of the steel plate.

Everyone knew that such a difference must be caused by new knowledge, but because there was still a steel plate, Tang Ling was not in a hurry to explain, so they could only continue to hold their breath and stare at the remaining steel plate.

"Boom"

"Boom"

It was Zhou Ji who fired the cannon first, and Wang Lin fired the cannon later. This time, there was also a gap, and it surprised the students even more, because Zhou Ji's cannonball basically did not cause any damage to the second steel plate, but only made it black, while Wang Lin's cannon left a deep depression in the center of the steel plate, but still failed to penetrate the steel plate.

"Alright, you two go and get the boat back first, let's start explaining the new knowledge!"

"Okay!" Zhou Ji and Wang Lin couldn't wait to jump off the boat, and they could find some new knowledge by taking the boat back early.

Moved to the bench, everyone sat down around Tang Ling, and Tang Ling was next to two steel plates and two cannons.

Pointing to the steel plate and cannon in front of him respectively, Tang Ling said: "This steel plate and cannon are two different new knowledge, the steel plate corresponds to the hull of the ship, and the cannon corresponds to the weapon system, so I will teach it separately, male and female students are grouped, the male students are responsible for learning new knowledge about the weapon system, and the female students are responsible for studying the new knowledge about the hull, and the students who join later are also grouped by male and female students to join you, and the group that completes their respective research first can learn another new knowledge faster." ”

"Yes, Teacher!" Answering Tang Ling in unison, the students' eyes flashed with excitement, they were all smart people, knowing that the new knowledge that Tang Ling was going to teach them was at least a secret other than Treasure Boat Island and Ling Wan Research Institute, and it might even be the first time to teach others, could it not make them excited?

"Okay, let's explain it briefly, and then I'll teach them separately to show fairness."

"First of all, let's talk about this steel plate, you are no stranger to alloys now?"

"Yes, Teacher, we've all done it ourselves! We also have a part in the bridge in the academy! Saying that, several people were quite proud.

"Well, and the new knowledge I want to talk about, in my own opinion, I call it [Subtle], which tests the advanced use of spiritual power, aiming to refine the raw ore for the second time, three times and even more repeated refining of the obtained iron, so that the internal composition of the iron is more compact, and it is a process of compression."

"In order to make such a finished product, you must first learn to penetrate the spiritual power into the interior of the iron, so I call it [subtle]."

After finishing speaking, Tang Ling paused, giving the students a process of relaxation, and then spoke again:

"Let's talk about the cannon!"

"Actually, there's a lot of knowledge in it! The structure, caliber, muzzle velocity, range, rate of fire, type of shell, etc., each of which can directly affect the attack power of the naval guns on our warships. ”

"So, there are still a lot of things you have to learn next, needless to say the hull of the battleship, that is the foundation of the battleship, although every system is indispensable, but when it comes to the real knife and gun, can the hull resist the beating? Can naval guns sink enemy ships before they sink themselves? This... That's the most important thing! ”

"Next, four classes during the day, I will teach two groups separately in the morning and afternoon, and if you want to study on your own in the evening, it will be your own business..."