Li Yaowei watched a football game, these people are just starting to learn to play, and they don't have any tactics, they basically kick randomly, depending on luck. But it still looks pretty good.

Finally, after arranging the "Guangzhou Cup" football match with Xie Huilian and a few local bigwigs, he returned home and sent someone to find a substance - a magnet. The main ingredient is ferric oxide, a natural mineral with magnetic properties that is essential for the compass, one of China's four great inventions.

Li Yaowei wants to go to sea by boat, for the sake of insurance, he needs a compass, and the more compass he has, the more protection he has, otherwise he may get lost at sea and wait for death.

Half a day later, the government found a magnet, and Li Yaoyu asked Xiaoxuan to take an embroidery needle.

"What is Xianggong going to do?"

"You'll find out later." Li Yaowei sold it first.

Fifth Yao, Xiao Xuan Ha Du Manwan all knew that he had some strange but very interesting ideas in his mind, and they all watched Li Yaoyu tinkering with interest.

Li Yaowei took the embroidery needle and grinded it a lot in one direction on the magnet, "Xiaoxuan, find something light that can float on the water." ”

"Is it okay to have a wick?"

"Yes." Li Yaojian took it, carefully passed the needle through the lamp grass core, so that the lamp grass core was in the center of the needle, and finally took a bowl of water, "Which side is the south?" ”

Du Manwan pointed in one direction, and then Li Yaoyu deliberately put the embroidery needle into the water in an east-west direction. Under the buoyancy of the lamp grass core, it floated on the surface of the water, and then to the dumbness of Fifth Yao, Xiao Xuan and Du Manwan, the embroidery needle actually made a ninety degree turn, from the east-west direction to the north-south direction, and the tip of the needle pointed to the south.

The three girls were stunned and couldn't understand: "Xianggong? Why does the needle move? ”

Li Yaojian smiled, "I won't tell you." Then he turned the needle in one direction, but when he let go of his hand, the needle seemed to have a leg and turned back to the north-south direction. Li Yaowei is very satisfied, the compass is done!

The three girls were even more stunned, this needle would actually identify one direction. Rao is Du Manwan is full of poetry and books, and the fifth Yao has traveled south and north, but he has never seen it, and he is stunned.

Although legend has it that there was a spoon-shaped Sinan in ancient times a long time ago, it is still controversial in the academic community whether this thing exists, and the compass, according to historical records, should have existed after the Song Dynasty, so they really don't know this principle.

Xiao Xuan asked excitedly: "Xianggong, tell me why this is, is it a spell?" ”

"It's definitely not a spell." Li Yaowei was speechless, this is science!

Du Manwan also wanted to know: "Why is that?" ”

Li Yaoyu smiled: "I want to know?" ”

"Uh-huh!"

"Hehe, don't say it."

"......" is fair and cheap.

"Xianggong~" With a strong curiosity and desire for knowledge, Xiaoxuan began to be coquettish, with a pure and delicate face, clear eyes, and a snorting voice, Li Yaoyu's heart was rippling, and he almost couldn't hold it.

"Kiss me everybody."

This is simple, Xiao Xuan took the lead in giving Li Yaojian a warm kiss on his lips. Du Manwan was a little squirming, but still kissed gently. Li Yaowei smiled lewdly, turned his head to look at Fifth Yao, Fifth Yao was unhappy, this thing is too shameless.

She rarely took the initiative to kiss Li Yaoyu, let alone in front of Du Manwan. Li Yaoji's face did not change, he stiffened his neck, and he had an attitude that if you don't kiss me, I won't say anything if you kill me.

In the end, Fifth Yao was helpless and shamefully left a fragrant kiss on her lips like a dragonfly.

Li Yaoyu licked his lips happily, and his heart was refreshed: "Listen carefully, the south and north sides of the earth we live in are called the south pole and the north pole, and the earth itself is a magnet, and the magnet has a characteristic that the same sex repels each other, and the opposite sex attracts, and the so-called same sex is the two norths, or the two souths......"

Li Yaoyu explained for a long time, and they barely understood, and finally played with this simple water floating compass.

"Little San......" Li Yaoyu called a maidservant, "You go and call a few people to make a round ball out of wood, as big as your head." ”

“……”

"What is Xianggong going to do again?"

Li Yaowei continued to sell Guanzi, "You'll know then." Or, lady, you are also a coquette? ”

After speaking, he raised his eyebrows at Fifth Yao.

I can't imagine what the cold Fifth Yao will look like, but it should be very exciting and fun. Li Yaojian grinned wickedly while fantasizing.

Fifth Yao didn't speak, looked at him expressionlessly, and slowly picked up the sword with his right hand......

The corners of Li Yaowei's mouth twitched, and he hid behind Du Manwan, "If you don't agree, you won't agree, cut." ”

……

Towards the end of the evening, the round ball that Li Yaozhen wanted was ready, and Li Yaojian took a knife and drew a line on it, depicting it according to the vague world map in his memory.

Fifth Yao, Xiao Xuan and Du Manwan watched quietly on the side, at this time they all knew that what Li Yaoyu did should be the model of the earth in his mouth.

It's about the same.,He used to like to travel.,It sounds a little strange.,A dead house who doesn't like to go out.,But he likes to travel.,Plus I like literature.,So there's a lot of research on maps.、Cultures around the world.,When I was in high school.,Although I studied science.,But geography and history grades are better than liberal arts students.。

In order to make it easier to distinguish between the sea and the land, Li Yaojie asked people to scrape off the part of the ocean by about one centimeter, and a globe was completed.

"Look, this is where we live, and the concave is the sea, isn't it big?"

The fifth Yao and the three girls came around, amazed at the appearance of this earth. "Uh-huh. Xianggong, where do we live? ”

Li Yaowei pointed to the location of Guangzhou on the edge of the South China Sea, "Here, along this Pearl River, we can go directly to the sea." ”

"It's amazing. Where is this island? ”

"This is Danzhou." Modern Hainan Province.

"This is Liuqiu." Li Yaowei didn't know if the island of Taiwan belonged to China in the Tang Dynasty, so he didn't introduce it too much, "This is Japan." ”

"I heard that during the previous dynasty, Japan sent an envoy." Du Manwan said, "So they are here." ”

During the Asuka period in Japan, Prince Shotoku sent envoys several times, the famous name was Yamano Girl, when Prince Shotoku wrote on the letter of state to Emperor Yang of Sui: The Son of Heaven is safe from sunrise to the day of the book. Emperor Yang of Sui was still very annoyed at that time.

"Back to the compass, this is Antarctica, so the compass is not the sky, but the land."

The three girls nodded one after another, and Du Manwan asked, "Xianggong, since the earth is round, can you go back to the same place if you keep walking in one direction?" ”

"Yes." Li Yaojian smiled, "But do you know how far you can walk in a circle?" ”

Shake one’s head.

"Eighty thousand miles."

"So big?" The three girls were stunned, even if it was an eight-hundred-mile fast horse, it would take more than three months to run.

"So, don't be arrogant, there are more scenery in the world."

"Have you been there?"

"Nope."

"......" Fifth Yao looked at him strangely, "Is this really made up by you?" ”

Li Yaoyu was choked, and said angrily: "Good and decent, why am I making it up to lie to you?" I haven't been to all of them, but I've been to many places, and many explorers have risked their lives to explore. ”

(End of chapter)