In the classroom, the atmosphere burned. Pen ~ fun ~ Pavilion www.biquge.info everyone watched this scene, rubbing their eyes, and looking at it in disbelief.

The paper was blowing towards the classroom door, but the boat was still blowing from the blower, heading towards the blower!

Compared with the shock and disbelief of the soldiers in the audience, Abe Zhongqiu was even more dumbfounded, as if he had seen the immortal spell and saw the divine art: "Is this an immortal spell?" Unexpectedly...... Sail against the wind! ”

"Of course, this is not some immortal spell, in this world, as a teacher, I don't believe in any immortal spells. If you want to know the wonderful cause and effect inside, then keep a strong curiosity, keep an enterprising spirit, and explore the fun of the unknown world. Okay, students, get ready to take the stage one by one and experiment with the sailboats in your hands! Cai Taoyuan said, and the scene suddenly boiled.

Everyone began to wait in line in a neat and orderly manner, and even more enthusiastic people persuaded the faculty and began to cheer themselves up in a hurry.

Sure enough, in addition to the six unlucky ghost sailboats that made mistakes or sank or crooked, under the auspices of Cai Taoyuan, a total of sixteen sailing ship models all realized the magical scene of sailing against the wind.

For this, the classroom was completely boiling.

Everyone was talking about the unbelievable sight in front of them.

Fortunately, they obviously didn't appear in any Taoist temple, and they reacted quickly, this was in the classroom of the Imperial Jingshi University Hall.

The scene slowly quieted down, and a pair of inquisitive eyes fell on Cai Taoyuan.

Seeing this, Cai Taoyuan smiled lightly and started an experiment again. At this time, Cai Taoyuan began to break down the precautions of the experiment: "Everyone, pay attention, I actually have a few points, and I didn't tell you carefully. Come, please see here. There are a few key points that the students didn't notice. ”

The familiar sound of notes sounded, and Abe Tadaaki didn't miss a word, not daring to miss it.

"First, adjust the boat so that the direction of the inclined sail is consistent with the instructions of the experimental principle, second, make the direction of the wind above the water surface consistent and even, and third, the key point comes: the sail shape, the direction of the wind and the direction of the boat are about 400; The first 1/3 of the sail surface, i.e. the long side of the jib before the deflector, should always be kept parallel to the direction of the wind, and the rear 2/3 part is taut and parallel to the forward direction, i.e. the sail changes direction and blows directly behind it, which can be approximately said to be similar to the ship that gets forward momentum by jetting directly behind it. ”

The sound of note-taking suddenly became louder, and everyone kept writing these words while looking up at Cai Taoyuan's demonstration.

At the same time, Cai Taoyuan picked up the model of the sailboat and began to introduce: "Note that there is a keel at the bottom of the boat. Its effect is to make its side resistance very large, even if it is forcefully acting on the boat from the side, the resistance of the water can always cancel it out. The boat does not move sideways as a result. The wind blows onto the inclined sail and the side sail gives it impulse so that it has momentum along the straight sail towards the back of the boat. The impulse of the wind on the skew is broken down into two components, one of which is offset by the keel drag, and the boat travels against the wind under the action of the other component. ”

Smack......

After Abe Zhongqiu finished writing, the pen fell to the ground, she looked at Cai Taoyuan's explanation in confusion, and after all the words were recorded, he found a fatal point. I don't understand it.

He knows what impulse decomposition, what keel, what resistance, what power, every Chinese character is taken out individually, but to understand it, he knows only half of it, and he is confused.

He looked at Chen Jianhong slowly, and said softly but firmly: "Chen Sang! The original fee, I doubled, no, doubled. I beg to let me stay longer! ”

"I'm going to study here! Learn everything about Daming! Abe's eyes were firm, burning with a thirst for knowledge.

In the following days, Abe Tadaaki was an eye-opener in the hall of Kyoto Normal University.

Trichromatic experiments, cloth that can't be burned, artificial rainbows, underwater volcanoes, ...... Experiments that are completely beyond common sense almost subvert Abe's perception of the world.

But in the same way, he is like a sponge, beginning to absorb a new amount of information and update his worldview. It was as if he had opened a pair of eyes that had been closed, and he saw another wonderful world, and he truly understood the strength of the Ming civilization and what kind of power was hidden under such prosperity.

Powerful artillery is only a symptom of a powerful civilization. Just like a military railroad that can be built in a short time, it seems as if it came out overnight. But in fact, if it weren't for the fact that Daming has a high-tech steel plant with a broad market, enough grassroots management personnel, and a first-class logistics supply force, how can such a miracle be achieved? Whether it is the steel plant, the abundance of talents, or the strength of logistics, it is obvious that the empire is a strong national power.

So, Abe Tadaaki stayed in the hall of Kyoto University for a month.

In the course of a month, there was turmoil in the Jingshi.

The queen mother was diagnosed with joy, and the whole world celebrated. The praise of the Ryukyu Kingdom and the Korean Kingdom also made the imperial court lose face. Soon, however, the Grand Monarch of the Korean state of Fenglim, Yi Yunhao, vigorously asked His Majesty the Emperor to pay a state visit to Korea.

In addition, the imperial court also began to disclose a series of actions in its dealings with North Korea. In addition to the 1 million yuan aid loan to the DPRK that was revealed early on, the Minister of Education, led the DPRK government represented by the General Administration of Education, the Ministry of Rites, and Daejun Fenglin to negotiate the "Treaty on Aid to Korean Education" for the DPRK to select students to study abroad, and the Minister of Finance and Economy led the Ministry of Household and other ministries to improve the "Sino-DPRK Good Trade Treaty."

Obviously, loans are not really altruistic aid.

Every penny of real money reveals the Empire's growing ability to control the vassal kingdom. In the same way, more people see the unlimited business opportunities under this treaty after treaty.

Under such a series of preludes, in the face of the warm invitation of the Joseon state, the court began to face it solemnly. As for the market, there are all kinds of eyebrows.

When Jiannu was raging, the Ming Dynasty repeatedly asked North Korea to send a large army to coordinate the encirclement and suppression. It's just that the North Koreans are either self-aware or a little ungrateful, and in short, the several times they sent troops were perfunctory.

As for the later surrender of Korea to Jiannu and change to a suzerain, it is really a betrayal. If it weren't for the loyalty that North Korea had left in the past and always returned to the arms of the Ming Dynasty, and after several explanations, the Ming would have been regarded as a Korean rebellion.

"Fortunately, the North Koreans knew each other, and sent envoys early in the morning, humbly, not only to give tribute, but also to congratulate the Heavenly Dynasty, and to set up many treaties that benefit me and the Ming Dynasty, which makes people raise their eyebrows! Otherwise, hum, I'll go to the newspapers, write and beg for war, and see how those sticks kneel and beg for mercy! "In the cafeteria of Beijing Normal University Hall, a student was enthusiastic and excited, raising his eyebrows, and he was so happy.