The strange-shaped iron box was first carried by the iron block inside and the temperature rose sharply, and then gradually cooled down, but everyone's mood became more and more intense.

Zi and the old man stared at Bai Dong with wide eyes. He was the only one who had carefully observed Bai Dong just now and found that the boy seemed to be stepping on the position under his feet, and the placement of the iron box was also given particular attention. He was a fool who practiced Taoism and sought immortality. Naturally, he could not help but think about it more, and the more he thought about it, the more mysterious it became, the secrets of heaven and earth, the codes of the universe, etc., which lingered in his heart for a while...

After a full incense stick, seeing that the box and the iron block inside had completely cooled down, Bai Dong walked over and opened the iron box, smiled and said straight to Gongshu: "Take the wooden turtle."

"Wooden Turtle..."

When he came, Bai Dong asked Gongshuzhi to make a wooden turtle. Gongshuzhi was once surprised that turtles were auspicious in this era. It is okay to give them to children to make toys and gifts to others, but Bai Dong also asked him to carry them with him. Could it be to give them to this greedy Ou Yeliang?

However, with Ou Yeliang's appetite, if you want to give it, you should give it a golden tortoise, jade tortoise or something? A wooden tortoise is probably not satisfying him. However, Bai Zi has always been incredible to do things, and Gongshuzhi is used to it, so he didn't ask much.

The wooden turtle that Gongshu took out was only one foot square, lying on his back, and the tortoise pattern on his back just divided the turtle board into nine pieces, deep into three on the left and seven on the right, two and four on the shoulders, six and eight on the feet, and nine on the nine palaces, which were worn and one on the nine shoes, was auspicious tortoise. However, the abdomen of the turtle was hollow, and there was a hole under the abdomen, which happened to be placed on a five-inch long round wooden stick. The other end of the wooden stick was connected to a square wooden support.

Many people have seen the turtle, the longevity turtle, and the turtle that can be lying on a wooden stick like this, but they are still only seen. Ma Qiao couldn't help but touch his nose: "Baizi. What kind of turtle is this?" Ou Yeliang also looked at Bai Dong. This kid was not quick to verify the magic iron. But he took out a strange wooden turtle for what? It was not made of gold and jade. Can a wooden stick be placed under his stomach be used as a gift for him?

Bai Dong took the wooden turtle with a smile, took out the "sacred iron" from the iron box and put it into the hollow turtle's belly. Then he supported the wooden turtle on a wooden stick and fixed the mortise. Then he lifted the wooden turtle and the tray in the air, and released the other hand that held the turtle's head.

"It moved... the turtle~ the head is wrong... it was the turtle that moved! It pointed to the south!"

Bai Dong's hand had just been released. The turtle lying on the wooden stick turned around and waited for the turtle's head to point to the south before he stopped. Young Master Shun had done underground work in his early years and had made a living on the water. He developed a pair of "divine eyes". According to modern standards, he had estimated that he had 2.0 vision and could be a pilot. Moreover, he had been a water bandit for a long time and was the most sensitive to the direction. However, he could tell at a glance that the turtle was right in the south!

Ou Yeliang stared at the turtle for a long time. When Bai Dong began to suspect that he was the legendary "mung bean", the guy rushed to Bai Dong quickly. He snatched the wooden turtle from his hand, and then ran around in the sword hut, sometimes in the north, sometimes in the south, and in the blink of an eye, he tried both sides of the east and west, but no matter how he ran, the turtle would always spin at the right time, and the turtle was always looking at the south!

Bai Dong also breathed a sigh of relief when he saw this scene. He also heard from the teacher in the middle school physics class that the principle is to use the earth's magnetic field to magnetize ordinary iron blocks; after the iron block is red, the temperature will be higher than the Curie point, and the magnetic domains in the iron block will collapse and become paramagnetics. After cooling, the magnetic domains will be formed again. At this time, the iron block will point one end to the noon position and the other end to the sub-position in the direction of the earth's magnetic field. Under the action of the earth's magnetic field, the magnetic domains rearranged in the iron block will have directionality, so they can indicate the north and south.

In order to ensure that the action is not lost, Bai Dong also used an iron box to load the iron blocks, and opened holes at both ends of the iron box to connect magnetic needles. The magnets made will be more sensitive and durable. Moreover, the magnetic field in ancient times is far stronger than later generations, and there is no interference from various electrical magnetic fields, so the success rate will be higher. If this fails, it is unreasonable.

"Magic, it's so amazing! Teacher, what method did Baizi use to make this turtle always look to the south?"

Ma Qiao is a strong man with developed limbs, and his head is a little bit uninspiring. At the first time, he didn't ask Bai Dong but his teacher, Zi and the old man. The old man's face turned red, and he touched his beard and said, "There must be the mystery of heaven and earth, which cannot be used by outsiders..."

Everyone smiled when they said this. It was equivalent to not saying anything. Ou Yeliang held the wooden turtle in his arms like a treasure, and ran to Bai Dong in front of him: "How did you do it? Tell me quickly!"

This guy's heart was beating wildly and his breathing became rapid. He saw a huge business opportunity from this wooden turtle. This thing is so valuable. Is Ouye's family going to send it?

"Stop, since Bai Zi has put forward the conditions, I should only tell me one person, and the rest of them will not be able to listen!"

Seeing Bai Dong open his mouth and want to speak, Ou Yeliang was immediately anxious. There were so many people in Jianlu, how could he just say it? He quickly stopped Bai Dong and then looked at everyone with malicious intentions.

Bai Dong frowned slightly. The invention of Guinea Turtle is not actually considered an invention, but only a kind of discovery. He has not yet been so shameless to apply for a patent from Qin. Moreover, considering the development of human science and technology, he never thought about any technical barriers. However, Ou Yeliang is obviously determined to make money. If he told the mystery in public, this guy might really regret not going to Qin. Well, he would satisfy his wish first and get this greedy guy away from Qin. If the Qin people want to dominate the world, they must have the advantage of armor. Without a great swordsman like Ou Yeliang...

At Bai Dong's request, the fleas and the others left Jianlu angrily; Bai Dong smiled and looked at Ou Yeliang, who was eager to learn, and said, "In fact, there is no bizarre method. After you transform the iron block like you, just put the iron block in the direction of the meridian for a stick of incense, it will have the effect of indicating the direction..."

"It's that simple?" Ou Yeliang frowned and thought for a long time: "But why is this?"

"Because there is a magical power in our world called a magnetic field. By smelting iron blocks, the iron block will be affected by the magnetic field, which indicates the north and south direction. However, it must be placed on the meridian position. Otherwise, it will have no effect. In fact, it will be the same if you use that iron box. However, with this iron box, the success rate will be higher and the effect will be better..."

"That is, you didn't do anything at all, just lie to me to Qin State? Bai Zi, this is probably a bit unfair?"

"Is that right? But if I don't tell you the truth, you will find it yourself. I don't know how long it will take to be completed? Mr. Ouyang. Sometimes it is not easy to discover a secret. It requires wisdom. If you cannot understand the **, even if you smelter iron and sword smelting for the rest of your life, you and I will never be able to create such a pointing iron. And I know a lot about similar discoveries. If Mr. Ouyang is willing to go to Qin to be the big palm furnace of the Ordnance Department, you and I will naturally have many opportunities to discuss in the future. For example, can you harden the soft iron and make it sharper and more durable than bronze? Can you refine a new metal? Let it go far beyond bronze and iron? Bronze and iron will lose its original luster over time. If the iron is wiped from time to time, it will rust. Can we refine a metal that will never lose its luster and will not rust? I don't believe that Mr. Ouye will not be interested in these."

"Sharer than bronze, never loses its luster, and does not rust?"

Ou Yeliang looked at Bai Dong's sky blankly. After a long time, he took a deep breath, his face turned a little flushed: "I promise you to go to Lao Qin! You must go. No one can stop him!"

"Haha, I promise that if Mr. Ou Ye comes to Lao Qin, I and the Lord will serve as guests of honor; in the future, the reputation of the gentleman will spread throughout the world, beyond the future generations, and even surpass the ancestors of the Ou Ye family!"

Just like the mad scientists in later generations, once they have a better boss, better research conditions, higher scientific research goals, the differences between countries and nationalities are nothing. Moreover, the Ou Ye family has no sense of belonging to the Yue Kingdom, which is frequent wars. Therefore, Ou Yeliang leaves and has no lingering in the Yue Kingdom.

Even the people belonged to Qin, so the materials in the sword hut naturally belonged to Lao Qin. Ou Yeliang was very generous this time. Not only did Sang Wazi and the flea each get a sword he made by himself, but even Ma Qiao got a pair of iron shackles.

This pair of flails is much better than the maces Maqiao used before. The whole body is made of fine iron tempered by Ou Yeliang. The two hammers seem to be small, but they are much heavier than bronze of the same volume. If you swing it gently at any time, you can touch the stone and turn it into powder. Maqiao excitedly played a set of shackles, and his moves opened and closed, and he had gone through more than 30 rounds with Sang Wazi without losing his advantage. Of course, Sang Wazi also loved his straightforward personality and cherished the sword he had just obtained, and did not use all his strength, but it can also be seen how powerful this pair of flails were.

With the Guide Turtle, Bai Dong's navigation plan was officially put on the agenda. Now, only the sea boats needed for the first fleet were built, and the sailors could go to sea after learning the basic theory; under Bai Dong's money offensive, the children of the Gongshogs were expected to build the required main ship and three "piglet boats" used to traffic in the Japanese ancestors in another two months. The problem was mainly in the training of sailors. Ordinary sailors only needed a series of water training. They could use the Guide Turtle to identify the direction and were responsible for steering. The roles such as the sailor and the captain and mate of the sailor need to uniformly learn to locate the latitude and longitude, identify the charts based on the latitude and longitude, and methods to deal with sea emergencies. The theoretical content is taught by the excellent students of the academy brought by Bai Dong. The practical content of the water requires the request of Gongzishun, a water bandit leader who has been hiding on the beach and is familiar with the sea. In addition, there are also generals who are good at water warfare under Doctor Gui Wei. With their help, it is not difficult to train a navy who can sail far away from Japan.

Doctor Guiwei showed great enthusiasm. In addition to some of the tribesmen of Zi and Lao Ren, the backbone forces were some of the old Bai family army and Gongzishun. In addition, there must be a "marine force" that landed in to fight and bully the ancestors of the Japanese. Bai Dong was preparing to thoroughly open up this sea route and gradually selected from the elites of the old Qin. However, there is a lack of manpower. Doctor Guiwei took the initiative to provide 500 elite troops to the fleet.

These are all elite Vietnamese troops who have rich experience in water warfare and have been trained in blood and fire during the Vietnam Civil War. Bai Dong naturally accepted this and donated tens of thousands of gold to the Vietnam royal family. That was natural.

***

Standing on the port dock, Bai Dong looked at the four sea boats neatly arranged in the port, and was a little excited. If Ying Quliang had not sent three letters to the flying eagle in a day, he would have urgently recruited him back to Lao Qin, he really wanted to participate in this voyage himself and be the first to set foot on that land with great sin...

However, with the stability of the third brother Ying Quliang, he actually sent three urgent letters a day, and refused to reveal what was going on in the letter. I was afraid that something really happened, so Bai Dong could only suppress the impulse of Columbus in the pre-Qin era.

"Baizi, the grain water has been prepared as you ask for, which is enough to sail for thousands of miles. However, the cabin space is limited, so the remaining space is not as good as bringing some live sheep and pigs. Brothers will have a good time to eat at sea, but you don't let you bring too much meat and livestock. What do you do with fried Autumn Swallows and beans? The fried Autumn Swallows are also eaten by humans? Eating too much beans will only fart, which is too uncomfortable..."

Zi and the old man and Ma Qiao stood aside and looked at the sea from afar. There seemed to be endless thoughts. Young Master Shun was nagging Bai Dong dissatisfiedly. This time, Zi and the old man were the captains, and he was the "first mate" of Bai Dong. Since that's the case, since Zi and the old man were just asking about these chores, he should make the decision. But Bai Zi insisted that the fleet would bring the fried Qiusong and countless beans. Isn't this crazy? Who would like to eat those things?

"After arriving at sea, you should eat more fried Autumn Swallows. Soak the beans in clean water to sprout. Stewed meat tastes great, and you should eat them every day. Believe me, people who have been on the sea for a long time will easily get a strange 'hemorrhagic disease'. Once you get infected, there is no cure! Eating these Autumn Swallows and bean sprouts regularly can ensure that you will not get infected with this hysteria!"

Even in the 21st world, scurvy should be prevented early, but it is difficult to cure it. In the era of Great Discovery, many sailors in Europe suffered from this disease due to long-term vitamin deficiency. Bai Dong wanted to develop Great Discovery, but it was not to let the Chinese die collectively, so from the beginning, they asked the sailors to insist on taking vegetables and bean sprouts.

The young master looked at the Guigui Turtle standing on the bow of the boat and nodded, "Just listen to Baizi, I will use dried autumn sprouts and bean sprouts as rice in the future."

Bai Dong smiled and looked at him: "You don't have to eat too much. Eating too much bean sprouts will make you fart..." (To be continued, please search for Astronomy, novels are better, updated and faster!
Chapter completed!