Da Qin: Many children, many blessings, create a long-lasting family

Chapter 281 Zhang Heng learns electricity, cable wire comes out!

Eastern han dynasty.

Ye Rongzu personally ordered.

Proficient in electric power scholars, who pass the assessment and can enter the dynasty as an official.

The official can directly reach the first product of the master.

What was the level of Yipin Dayuan in the Han Dynasty?

Three gongs and nine qing, are all first-class masters?

Therefore, the first rank is already equivalent to an extremely powerful minister, an existence above ten thousand people under one person!

This decree was issued to the whole world.

All the people of Dahan were crazy about it.

"The new emperor attaches so much importance to electric power, it is really difficult to understand that electricity science is included in the scope of the imperial examination, what is the charm of this electric power?"

"I've seen some electricity, and it seems that electricity can make lightning through machinery called generators. "

Electricity is also too incredible, I always thought that lightning was made by gods, but I didn't expect that we could also control lightning, no wonder Xindi attaches so much importance to this discipline. "

"As long as I am proficient in electricity, I can become an official, I have studied hard for decades and cannot enter the DPRK, maybe electricity is my only 12 hopes!"

"I want to be proficient in electricity, but I will be promoted to the first rank!"

"It turns out that not only can I get ahead by reading the books of the sages, but I have shallow knowledge and only some words, if I am proficient in electricity, can't I also become an official and get ahead?"

The knowledge of electricity was frantically popularized in ancient times, and books on electricity continued to appear in the land of the Han Dynasty, and the people were crazy to learn electricity.

Sansuke.

Willow Riverside.

Zhang Heng sat under the tree, holding a volume of arithmetic books, and looked at it seriously.

Historically, Zhang Heng was a geographer, mathematician, and astronomer of the Eastern Han Dynasty.

He has made great contributions to astronomy, seismology, mechanical technology, etc. in China.

He has invented and created geokinetic instruments, armillary spheres, Ruilun pods, guide cars, jili drum cars, canoe flying sculptures, topographic maps, etc.

The most famous historical events are:

Zhang Heng invented the geokinetic instrument.

The geometer measures the direction of an earthquake.

The geometer has eight dragon heads with copper beads in eight directions, and a toad below them.

In the case of an earthquake.

The copper beads inside the faucet's head will fall into the toad's mouth.

A certain day.

An earthquake occurred in Longxi.

The ground motion meter was successfully measured.

All obeyed it.

In addition to the geometer, Zhang Heng also participated in the revision of the calendar.

The Later Han Shulu Chronicle records that the calendar was changed from the Jia Yin Yuan Calendar to the more scientific Eastern Han Dynasty Quarter Calendar, or the previous Taichu Calendar.

The pictures and disasters of the "Jia Yin Yuan Calendar" exist, and there are feudal superstitions.

Not suitable for use.

Then, Zhang Heng and Shang Shulang Zhou Xing discussed the study of astronomical observation records.

Extrapolate theories from them and other calendars.

Compare.

Finally, it was confirmed that the "Nine Ways Law" was the most precise.

In the "Nine Dao Methods", the values of the length of the moon and the length of the return year are more precise than the "Quaternary Calendar" and the "Taichu Calendar" of the Eastern Han Dynasty.

Among them, it is recorded in the "Nine Laws" that the speed of the moon is not uniform.

Other calendars are calculated at a constant speed of the moon.

Therefore, the "Nine Dao Law" is more in line with astronomical reality.

But because of the phenomenon of two or three months in the "Nine Dao Laws".

Old-fashioned people find it difficult to accept the calendar change.

Therefore, even if the Nine Ways of Law was the most accurate and reasonable, everyone did not accept it.

It was not until more than half a century later that Liu Hong's Qianxiang Calendar was able to officially adopt the uneven speed of the moon in the Nine Dao Laws.

"Pingzi, do you see what good things I brought you?"

His friend, who was also studying at Sanfu, patted him on the shoulder and handed the electricity book to Zhang Heng, who was sitting under the tree reading.

"Pingzi" is Zhang Heng's character.

"What is it?"

Zhang Heng looked at the three big words of electricity on the cover of the book, and his face was filled with doubts.

My friend smiled and said, "I know you like to read weird or off-the-beaten-path books, so I specially bought this book to give to you." "

Zhang Heng's brows frowned slightly.

"I just like the knowledge of mechanics, arithmetic and astronomy and geography, which is not unusual. "

"Students in the world can only read books for the imperial examination, who will read these?"

"No need to argue anymore. "

"You see. "

"This book is not to your liking, now the new emperor has issued a new order, if you are a proficient power scholar, you can enter the dynasty as an official after passing the assessment, Pingzi, don't you have strong hands-on ability, (read violent novels, just go to Feilu Novel Network!)

I think this is like a heavenly book of electricity science and you are very matched, maybe you can be proficient in electricity, and then pass the electricity assessment, and be named a first-class master by His Majesty. "

"At that time, Gou Fugui, don't forget it, Pingzi. "

The friend patted him on the chest and teased.

Zhang Heng shook his head.

"I joined the profession for the benefit of the people, not for power and pleasure..."

"Okay, okay, I know that you are proud and will definitely become a clean and clean official in the future, so you better read this electric science book first." "

Zhang Heng flipped through the electric power books, and gradually, his expression became serious.

He gradually became obsessed with it.

"Hirako, Hirako?"

"How is this book?"

"I called you so many times that you came to your senses, and it seems that this book must be very suitable for your heart. "

My friend said with a smile.

Zhang Heng's face was full of excitement and fanaticism.

"Odd book!"

"It's a strange book!"

"In the past, I thought that books such as mechanics, arithmetic, astronomy and geography were already miracles, but I didn't expect that there were such books in the world!

I took a cursory look at this 770 book, and the new content in this book is electricity, which is simply unheard of.

Lightning has always been something difficult for humans to control, but this book tries to teach us how to use lightning, control lightning, and make lightning!"

Zhang Heng was completely addicted to electricity, locking himself in his room for most of the day, going out from time to time to buy some materials.

When the morning sun shines through the open window, it shines into the room.

Zhang Heng looked at the generator in front of him, and a smile appeared on his face.

"It worked!"

"I finally made it!!"

Zhang Heng built a generator on the basis of Liu Xiu.

However, he is not limited to that.

The generator is built to generate electricity, so how to transmit and transport electricity?

Zhang Heng quickly flipped through the electric power book and finally found a sentence from it.

"Gold wire conductivity is good, but its copper wire is less expensive, and the copper wire can carry more current for long-distance transportation..."

"Copper wire!"

Zhang Heng continued his research.

Subsequently, cables were developed that could transmit electricity over long distances.

He announced the birth of the wire.

The news shocked the Eastern Han Dynasty.

When the Eastern Han Emperor Ye Rongzu found out, he was overjoyed.

He directly made Zhang Heng a fourth-grade official and commanded the Eastern Han Dynasty to study electricity.

This initiative has further stimulated the hearts of many students to study electricity.

Người mua: tieptri