The Summoner of the Battle of All Realms

Chapter 529: The Shadow Measures Its Length

After listening to Xu Xiake's words, almost everyone was stunned. Do you know the length of an object without measuring it?

Everyone looked like they were in pain, and they were yelling at the people of the Western Regions in their hearts. You said you have nothing to measure what kind of tree, if you don’t know it, you don’t know it.

Everyone couldn't help but fell into thinking, using their brains one by one.

Prince Dan frowned, he found that there seemed to be no such thing as an introduction in the "Mo Jing".

"Hey, Senior You Sheng, wouldn't it be over if you cut down the tree? It took such a lot of effort", a person shouted loudly.

Hearing the other party's words, everyone snorted, your uncle, if the tree can be cut down, it's up to you to think about it.

"What are you looking at, did I say something wrong? I want to know the length of the tree, but I can't cut it down. Isn't this asking for trouble?" Seeing the contemptuous eyes of everyone, this person suddenly became unhappy.

"Get out, don't disturb my thoughts here, I almost thought of it." A person glared at the other party, and directly made a good excuse. It's not that I don't know how to do it, but that I was disturbed by the other party.

Everyone shook their heads one after another, another clever person.

"Yan'er, what's the matter? Will it be possible?" Tian Meng looked at his daughter as if asking for help.

"Father, don't talk to me, I'm thinking." Tian Yan paced back and forth, looking like he was thinking.

"Junior Brother, this question is really difficult. It seems that our knowledge is not enough." Yan Lu looked at Zhang Liang and smiled wryly.

"Yes." Zhang Liang never had such a problem as Xiangguo. Usually, when they wanted to measure the height of a tree, they would cut it down directly. No one had noticed how to measure it without cutting it down.

"Oh, there's still this stupid problem, it's too simple, will it be over soon after letting someone who knows how to do light work fly up? What a big deal," Chi Tuo yelled, his mind is simple, and he thinks things straight.

"What are you yelling for? Can the question be so simple? It's a divine tree, do you dare to step on the divine tree?" Dian Wei gave Chi Tuo a direct look, "Don't blah, blah, blah! My son and all the adults think about it."

"Yes yes yes", Chi Tuo was afraid of being taught by his master, so he listened to Dian Wei's words very much.

Everyone was indeed thinking, but Fusu was thinking ass, he couldn't help being amused at this moment, isn't this the knowledge of junior high school?

Fusu looked at the performance of the crowd, with a vague smile on his face, confident.

Seeing everyone's thinking, Fusu couldn't help thinking of the origin of this method.

The invention of measuring height by shadow was Thales, who was born in a noble family of slave owners in the city of Miletus on the west coast of Ionia in Asia Minor. He founded the earliest philosophical school in Greece, the Ionian School, and continued to engage in research in philosophy, mathematics, astronomy and other disciplines.

He is the oldest philosopher, natural scientist, and geometer in Greece. He is the first great scholar in ancient Greece who enjoys a world reputation and is known as the "father of science" and "the originator of Greek mathematics".

Around 600 BC, around the middle of the Spring and Autumn Period, Thales came to Egypt from far away Greece.

Before that, he had been to many eastern countries and learned mathematics and astronomy from various countries. After arriving in Egypt, he learned the methods and rules of land measurement.

Thales has observed pyramids for a long time: the base is square, and the four sides are identical isosceles triangles. It is not difficult to measure the side length of the bottom square, but it is impossible to measure its height.

When he saw the shadow of the pyramid in the sun, he suddenly thought of a way.

On this day, he took out a slender wooden stick from the room, stood it on the ground, and observed the shadow of the stick.

Thales carefully observed the changes in the shadow, and found out the midpoint of one side of the pyramid's ground square, and marked it.

Then he asked someone to continuously measure the length of the shadow of the stick.

When the length of the shadow was equal to his height, he ran over and measured the distance from the apex of the pyramid shadow to the marked midpoint.

When he calculated the height of the pyramid, the onlookers were very surprised and asked him how he calculated the height of the pyramid.

Thales explained: "When the length of the stick is equal to the length of the shadow, it forms an isosceles right triangle. At this time, the height of the pyramid will also form an isosceles right triangle with its own shadow. So the shadow The height is the height of the pyramid."

After everyone listened, they all praised.

This is the famous "Shadow Measuring Pyramid Story".

It's just that now, the pyramid has become a sacred tree. For a reason, as long as the shadow of the sacred tree is detected, everything will be solved easily.

Fusu looked at the sky, it was not yet time, so Fusu was not in a hurry.

Everyone was thinking hard, but they didn't have any good ideas, and some people just gave up.

Fusu looked at the sky and felt that it was almost the same, so he stood up directly.

"I have a solution," Fu Su walked out of the crowd.

"What? True or false".

"I don't believe that there are people smarter than me in this world. If it's fake, it must be fake. I didn't expect the famous Fusu to do something."

"Damn it, it's him again."

Everyone was full of malice towards Fusu.

Chapter 530: The Enraged Heroes Show Off

Fusu ignored everyone, in his eyes, only Xu Xiake.

"Oh, I don't know how you measure it," Xu Xiake asked with a smile.

"Measure the shadow", Fusu said very solemnly.

"What did he just say? Measure shadows?"

"Hahahaha, it turned out to be measuring the shadow, I laughed to death, oops, I really laughed to death."

"My lord, do I need to remind you that the length of the shadow will change."

A person who seems to be well-intentioned is actually ironic.

Fusu ignored the crowd, walked up to Xu Xiake in front of everyone's eyes, swiped, and saw that Fusu directly pulled out the flying sword in his hand.

"What do you want to do, put down your arms."

"Don't be impulsive, it doesn't matter if you can't figure it out, don't hurt people."

"If you dare to hurt Senior You Sheng, you won't be able to get out of this place alive."

"At first I thought it was a powerful character, but I didn't expect to want to use force."

"As expected of Mr. Fusu, if you can't be soft, you can be tough. Why don't I have such courage?"

Seeing Fusu Liangjian, everyone was excited. It was so exciting. They didn't expect such a change.

When Prince Dan saw Fusu pull out the flying sword, the eyebrows on his waist trembled. The three Fu Nian brothers looked at each other and chose to wait and see.

Both Tian Guang and Tian Meng of the farmhouse tensed up. If You Sheng was in danger, they would definitely make a move. Of course, the purpose was to make a good impression on You Sheng. Maybe, the other party was happy and could hand over the geographical map of mountains and rivers to him .