"Chirp"

An unknown seabird skimmed over the towering mast, and the crisp birdsong woke up the dawn.

The cool breeze is blowing, the morning light in the east is beginning to appear, and the sea and sky are the same color in the distance.

Shen Yanqing called Yang Bo up early in the morning, and today he was going to teach him to practice knife techniques.

"I'll demonstrate it first, and then you follow it one by one." Shen Yanqing had a pretty face, obviously dissatisfied with Yang Bo's early up.

This is under the first mast, with the lookout post in front and the deck building in the back, which is relatively empty.

Shen Yanqing stood quietly, a long knife in her hand, the blade was cold, and after a few breaths, her wrist shook lightly, and she made a starting gesture, as slow as a cloud.

Suddenly, the body twisted, and in an instant, a knife seemed to turn into several knives, and then a gust of wind rose, whirring, and the figure seemed to be shrouded in a cloud of light and shadow.

Hey, a squeak.

Shen Yanqing clicked on the ground with one foot, flew up, and in an instant, the tip of the knife turned into thousands of points of light within a very small angle range, and went straight to Yang Bo's throat.

Soaring like a frightening wave, moving like a rabbit, fast as lightning.

Yang Bo screamed and hid back in a hurry, but saw Shen Yanqing's wrist turning lightly, a beautiful knife flower, the long knife was already erected in front of his chest, and the knife technique was finished.

"It's just the last resort, chasing the stars and picking the moon." Shen Yanqing's face was flushed, panting slightly, obviously after playing this set of knife techniques, her physical exertion was not small.

Yang Bo's jaw dropped in shock, he picked it up embarrassedly, and said: "Qing'er, when I saw you slashing people, I just picked up the knife and fell like that, it turns out that there are so many ways." ”

"You have practiced this knife technique, whether you have a knife in your hand or not, it is a move, and it is difficult to deal with a few small thieves." Shen Yanqing glanced at Yang Bo, shook the knife in his hand, and said, "Come on, today is one word, stab." ”

Shen Yanqing was wearing a cyan silk casual dress, with a short placket, straight-leg pants underneath, and the trousers were tucked into soap boots, looking like bloomers.

Shen Yanqing demonstrated in front, with her back to Yang Bo, taking apart the moves, explaining them little by little, using slow motion.

The silk cloth is light and thin, the sea breeze blows, wrapped tightly, the convex convex, the concave concave, the mountains are high and the water is low, the graceful curves, the mature shape, very sultry.

The body shape is constantly changing, sometimes full moon, sometimes half moon, and even can look down, look down, only see two peaks, no trough, only a deep ditch.

Looking horizontally, the side of the ridge is a peak, the distance and the height are different, there are no dead angles at 360 degrees, they are all beautiful to the extreme, Yang Bo's eyes are messy in the wind.

"You do it all over again." Shen Yanqing stopped and gestured.

Yang Bo's movements were chaotic and disorganized, even in slow motion, he couldn't see clearly, and his vision was seriously disturbed.

Shen Yanqing frowned, very impatient, walked behind Yang Bo, reached out to hold Yang Bo's wrist, and corrected his movements.

Yang Bo also understood, the eyes of the knife practice should be staring at the tip of the knife, and there should be no slightest movement, but the trick is under the feet, and the tossing and turning of the next plate is the key.

In this way, Shen Yanqing also had to correct his next move, and the two looked like they were dancing tango.

In this situation, it is inevitable that there will be a touch of the body, and an inadvertent touch is an electric shock, crispy and numb, a very comfortable feeling, and a full range of touch, which is basically a short circuit, Yang Bo's mind is full of messy thoughts, ecstasy is ecstasy, and it is uncomfortable.

Yang Xiaobo was angry, like an angry frog, playing a seesaw game alone, is it fun?

People say that men and women are matched, and they are not tired of working, but, Yang Bo suddenly felt so tired.

"Qing'er, I'll come too." Mu Ying appeared in time, and also held a knife in her hand, the knife was in her hand, like carrying a snake, "People will be alone in Nanjing in the future, and they will also learn some kung fu to defend themselves." ”

Mu Ying's voice was so squeamish, and she looked at Shen Yanqing with pleading eyes.

Shen Yanqing said: "Okay, Yang Bo is stupid, he can't teach a single action for half a day, you learn it first, and we will be ashamed of him." ”

When Mu Ying saw that Shen Yanqing agreed, he immediately jumped up, and walked to Yang Bo with a knife, carrying a knife in his arms, which seemed to be rarely restrained, and two rabbits fluttered there.

In the world, there is a mountain higher than this mountain...

Yang Bo heard such a song in his ears, and hallucinations appeared in his mind, he saw four upside-down jade bowls, which were all his favorite steamed pork, maybe rice noodles, or dried plum vegetables, they smelled very good, which one was more delicious? Or is it better in its own way?

Yang Bo salivated and suffered.

However, Mu Ying did not look at Yang Bo squarely, but followed Shen Yanqing to learn one move at a time, with a clear eye and a very serious look.

Yang Bo was embarrassed, so he had to restrain his mind and practice, Yang Bo withstood the test, and the practice of knives gradually got better, and an hour in the morning passed like this.

Next, Shen Yanqing should be on duty in the command cabin, according to Shen Jizhi's requirements, Yang Bo needs to learn every link of driving a ship to sea, and he must also learn this one.

Standing in the command cabin, you can see the lookout at the bow of the ship, where there is a small flag officer, when needed, the small flag officer will play the flag, report the enemy situation and the sea situation to the command cabin, or shout at the top of his voice, if this distance is downwind, it should be heard.

Near the window is a long wooden platform, with bulkheads embedded in both sides, which is considered an operating table, on which are placed a monocular, a star-pulling board, a nautical compass, an hourglass, nautical charts, and Yang Bo's earthen pencil.

I didn't see the sextant, which is equivalent to a more accurate star-pulling plate, and can also measure the horizontal angle between two land targets, which can be used to locate on the chart, Yang Bo guessed that the sextant had not yet been invented at this time.

These tools are fine for offshore navigation, but ocean-going navigation is completely different.

Ocean voyages face a key question: how do you determine your position at sea?

Just imagine, you have been floating at sea for dozens of days, surrounded by the vast sea, and you can't find any reference, how broken your heart is?

After Columbus, Magellan completed his voyage around the world, and the Europeans had confirmed that the earth was round, and in order to better describe their position on the earth, the concept of latitude and longitude came into being, so that the problem of describing the position became the problem of determining latitude and longitude.

Latitude is better said, with the star drawing plate, you can determine the latitude by measuring the height of the star, the sun during the day, and the North Star at night.

However, longitude is difficult because longitude measurement is actually the measurement of time, and the accuracy of timekeeping tools at this time is far from meeting the needs of ocean navigation.

Like this hourglass in Shen Yanqing's command cabin, it can only be roughly counted for time, but it can never be used for navigation.

Columbus's great geographical discoveries, with the element of luck, could not determine the longitude, could not know the exact position of the ship, and he crashed into the American continent on the course of the continent not much like a blind cat encountering a dead mouse.

Later, Europe opened the age of ocean navigation, and for a long time, it could only sail at a fixed latitude, until there were enough precision clocks to change, and the world could be regarded as entering the real age of discovery.

Yang Bo pondered that with the means he currently mastered, he could actually build some tools, such as telescopes, sextants, and even clocks.

It is estimated that the pendulum has not yet been used in clocks, and the escapement, Yang Bo happened to know, he was naughty when he was a child, and once dismantled a piece of FIYTA mechanical watch from his father, and he had seen that thing, and he studied chemical machinery in college, mechanical things, and he knew a little bit.

Shen Yanqing taught Yang Bo to use these tools, and Yang Bo also understood it in seconds, after all, he was highly educated, and the structure of these things was very simple, so simple that there were serious flaws.

Shen Yanqing felt strange, raised her eyebrows, and asked, "Your brain is good at this time, what are you doing when you practice knives?" You did it on purpose, right? Want to take advantage of me? Yes and no? ”

"No, I don't know how to use the telescope, or will you teach me again?" Yang Bo said immediately.

"I believe you're a ghost."

Shen Yanqing stared at Yang Bo, as if to gain insight into his heart, Yang Bo's eyes met him, and the eyes of the two met in the air.

At this moment, the hull of the ship suddenly shook violently, and both of them were caught off guard, and they collided together, and the two soft balls on Shen Yanqing's chest bore the brunt of it, and they were the first to reach Yang Bo's chest, and they were all squeezed and deformed.

Warm, soft, fragrant, sultry and heart-wrenching.

Yang Bo couldn't help it, his lips came up, and he pecked Shen Yanqing's small mouth.

This sudden kiss was so unexpected, Shen Yanqing was so ashamed that she couldn't do it, her body was trembling, her breathing became short, her mouth made an indescribable sound, and her bare skin was all red, like a layer of glow.

Her beautiful eyes were closed, and her long eyelashes were trembling slightly, and she was extremely shy.

At this time, Shen Yanqing was the most beautiful, like a delicate rose, Yang Bo couldn't help but hold her face with both hands, and was about to kiss again, but Shen Yanqing pushed Yang Bo away and said, "Maybe something happened." ”

The two of them looked down, and sure enough, the little flag officer on the bow lookout was waving the flag, and Shen Yanqing said: "Lei Yanzi reported that he found a foreign ship trailing behind the fleet. ”

"Foreign ships?" Yang Boqi said: "Why don't I go to Brother Lei's boat to have a look?" ”

Shen Yanqing stroked the green silk on her sideburns, her face was still crimson, and said: "Our fleet has now arrived near Chongming, which is the mouth of the river, and it is common to encounter foreign ships, it may just be a false alarm." ”

Just had a skin-to-skin blind date, and the two were a little uncomfortable, Shen Yanqing stretched her shirt and said, "Don't you still have a class for Yiming?" You go and teach them first, and I'll call you if there's something. ”

Yang Bo was a little hesitant, he should be present when something happened, but he also understood that Shen Yanqing was afraid that he would need time to digest the scene just now, so he was a little embarrassed at this time, and finally said, "Then you be careful, I'll go down." ”

Yang Bo turned to leave, but heard Shen Yanqing say: "After class, come back quickly, there are many things to learn in the command cabin, you are not allowed to be lazy." ”

Yang Bo waved his hand, a smile on the corner of his mouth.

The southbound ship was basically empty, and there were many vacant cabins, so Yang Bo chose a well-lit one in advance as a temporary classroom.

Yang Bo walked into the classroom, Shen Yiming and Le Shui were there, and there was one more person, who was it if it wasn't Mu Ying?

"Idle is idle, you won't drive me away, will you?" Mu Ying sat at the back, blinked, and said.

Yang Bo didn't think Mu Ying really wanted to take any classes, she was bored in the cabin, let's find something to do for herself, Shen Yiming and Le Shui were there, and he couldn't quarrel with her.

Yang Bo remembered what he had thought about in the command module, so he simply talked about some astronomy and geography in this lesson.

It is nothing more than that the earth is round, the moon revolves around the earth, the earth revolves around the sun, the approximate location of the five continents and four oceans, the new continent of the Americas, Europe, the South Sea, etc., and so on.

Yang Bo also brought a green gourd, sweet potato, and potato from the kitchen, representing the sun, the earth, and the moon respectively, and told them the truth that the celestial bodies rotate, the sun sets, and the moon sets and the moon rises.

The three students were surprisingly quiet and listened attentively, and so did Mu Ying.

After speaking, Shen Yiming was the first to ask, he gestured with his hand, he asked: We are all revolving around the sun now?

Yang Bo nodded.

The sunlight came in through the porthole, forming a pillar of light, which just shone on Shen Yiming's body, his eyes looked at the sun outside the window, his eyes were surprisingly bright, and his expression was full of infinite yearning and expectation, Yang Bo could see that Shen Yiming was in a delusion.

Le Shui looked very confused and asked, "Senior brother, you said that the moon really revolves around the earth, so is there still a fairy Chang'e on the moon?" ”

"Fairy Chang'e is a myth and legend, the moon is bare and desolate."

"But on the night of the Mid-Autumn Festival, I obviously saw a figure on the moon, and I made a wish to the fairy."

“....”

Science is sometimes too cruel and ruthless, is it good or bad to teach like this, Yang Bo sighed in his heart.