Chapter 1484: Formally approved!

On the second day, there was a piece of good news from the workshop. The

transistor was made, and Li Tai used a very crude ammeter to verify that it

did amplify current. Li Zexuan heard the news and rushed to the workshop. .

"Mountain long, it's done! It's really done! After my preliminary

measurements, after the current passed through the grid of the transistor, it

was amplified by about five times! If you connect more transistors, the

magnification can be even greater!"

As soon as he entered the laboratory, Li Tai greeted him with excitement.

Li Zexuan walked to the test bench, and saw a glass tube slightly smaller than

a fist on the bench, and a rough meter. The meter did not even have a casing.

The magnets, springs, wires, and pointers inside were all exposed. Some simple

fixing devices, although Li Zexuan can roughly guess the function of this

meter, the appearance of this thing is really disdainful!

As for the glass tube with a slightly smaller fist, it should be the first

triode in the world, because there are three electrode connectors exposed on

the outside of the glass tube, but... this triode is too big, and Li Zexuan’s

previous triodes were all semiconductors. (Crystal) transistors are only the

size of a fingernail, and with the development of microelectronics technology,

the size of some transistors can even be less than 10nm. Compared with this,

it is no exaggeration to call the electronic transistor in front of it a

behemoth!

"Qing Que, you connect the power and let me see!"

Li Zexuan knew that it was not the time to pick and choose. After all, under

these conditions, it is not easy for Li Taineng to make a triode. It would be

a bit embarrassing to ask for something else. So he pointed to the triode on

the table and told Li. Tai said.

"Okay! Long wait!"

Li Tai nodded in response, and started wiring numbly. After a while, he turned

on the power switch, pointed to the electric meter, and said:

"Shanchang, you see, the current at the cathode end is 0.7, I now connect the

ammeter to the anode end... Look, the current has reached 3.8, which is almost

five times the magnification! This proves that the voltage on the grid is weak

The signal change can modulate the current flowing from the cathode to the

anode, so you can get the same current as the input signal change, but with a

greatly increased intensity!"

Li Zexuan saw this series of operations in his eyes. At this time, he couldn't

help but sighed: "Good! Good! Good! I didn't expect Qingque you to make a

triode so quickly. It is not easy! With the addition of diodes and triodes,

and making resistors with stable resistance, the Academy can begin to

transform the telegraph machine!"

Li Tai thought for a while, and asked, "Shanchang, the resistor you mentioned

before is used as a standard resistance. The workshop has already made it, but

I think it is too big. If you need a larger resistance in the future The size

of the resistor will be larger. If it is used in a circuit, it will seriously

affect the volume of the entire product. I wonder if there is any material

that can replace steel as a resistor?"

In order to facilitate Li Tai's production of voltmeters, Li Zexuan proposed

that a steel one inch in length, width, and height can be used as a standard

resistor. But speaking, although the conductivity of steel is not as good as

copper, it is still good. The resistance of the iron wire is very small, and

it is not suitable to be used as a resistor. Modern resistors are mostly made

of nickel-chromium alloys. The chip resistors are made of metal powder and

glass uranium powder and printed on the substrate by screen printing. Resistor

made.

With the current process conditions, these two types of resistors have certain

difficulties to be manufactured. After thinking for a long time, Li Zexuan

said:

"Of course there are materials that can replace steel! For Blue Bird, you can

mix carbon black, resin, and clay in a certain proportion, then press the

mixture, and then heat it to make a section of resistance rods. The resistance

made of this material is more than chopsticks. It should be thin, only about a

quarter of an inch long, but the range of resistance values can be very

wide, which can fully meet the needs of various occasions!"

The resistor he mentioned is called a carbon resistor in modern times, and a

color ring is used to indicate its resistance. Its materials are cheap, low in

cost, and wide in resistance range, but with poor performance, it is rarely

used. It is basically replaced by metal film resistors and chip resistors with

more stable performance in the market.

However, for the current Datang, it is already quite remarkable to have carbon

resistors!

"Carbon black, resin, clay? Shanchang, can the resistance made by these things

work?"

Li Tai was stunned after hearing this. He used carbon black, resin, and clay

as resistors. No matter how you listened, it didn't feel reliable!

Li Zexuan smiled slightly and said: "Why doesn't this work anymore? Not only

works, but also very easy to use! If you don't believe me, Qingque, you will

find a craftsman in the workshop later to help you try to make a batch of

these resistors. Come out and know!"

Li Tai scratched his head and said, "Okay! Then I'll find someone to try and

do it later!"

Li Zexuan nodded and said, "Well! That's the thing to say! This afternoon, I

will officially announce the launch of the second and third assassin projects

at the academy, and you will also participate in Qingque!"

"Huh? Shan Chang, what can I do if I go to this kind of meeting? If I don't go

or not, there are a lot of things on my side!"

Li Tai quickly shook his head when he heard it.

When it comes to major projects like Assassin Project, they are basically led

by the masters of the academy. The students only play a role in assisting

them. Li Tai thinks it is better not to attend this kind of meeting, which is

a waste of time!

Unexpectedly, Li Zexuan still insisted: "Qingque, you must go to this meeting

this afternoon, after all, you can't do without you for the two killer

projects behind this!"

After all, he left without waiting for Li Tai to react.

"I can't do without me? What does Shan Chang mean?"

Li Tai was puzzled. Gradually, he suddenly thought of something, and he

couldn't help but feel excited.

...........................

"Today, I have gathered all the gentlemen for this meeting, mainly because I

have an important thing to announce!"

Before three minutes, all the teachers of the college were summoned to the

large conference room on the first floor of the Guanghua Building. As for the

students of the college, the first two sessions in the afternoon were

naturally changed to self-study temporarily. Anyway, it is nearing the end of

the semester. Basically, every class It's all over, and the students just need

time to review. Seeing that all the teachers were here, Li Zexuan said in a

deep voice.

Seeing that Li Zexuan was so solemn, everyone couldn't help but raised the

spirit of twelve points one by one, waiting for the following.

Just listen to Li Zexuan said: “All the gentlemen present here have passed the

college confidentiality examination and signed a confidentiality agreement.

Today’s meeting is a top-secret meeting. The minutes of the meeting are

directly classified as top-secret documents. After the meeting, Mr. Yan will

send someone to file and lock it. Save, and what you hear for a while, you are

not allowed to leak to others, including your family. Offenders will be handed

over to Dali Temple for treason. I hope you can take it seriously!"

Hearing this, everyone's expressions couldn't help becoming serious. Since the

establishment of a strict secrecy system in the academy, there has never been

a top-secret incident. You must know that top-secret technologies are related

to national security. With life and death, there will be no documents defined

as top secret, but it also shows that today's meeting is high in

specifications and important in content!

Everyone bowed their hands with serious faces: "Yes! Shan Chang! I will

strictly abide by the academy's confidentiality system, and will never leak

the content of today's meeting!"

"Okay! Then the formal meeting now!"

Li Zexuan nodded and said in a deep voice: "I am calling you here today to

inform you that starting from today, the second and third killer features of

Yanhuang Academy have officially started. Yes, you heard it right. They are

two killers. The project was approved at the same time!"

The scholars present here all felt incredible. At the beginning of the year,

Li Zexuan proposed the Yanhuang Academy’s one hundred killer project plan, and

used the Bahe Hydropower Station as the first killer project. Until now, the

first killer project has not been completed. Because the later work of the

hydropower station has not been completed yet, Li Zexuan has directly proposed

two more killer projects. In the eyes of everyone, the progress is really too

fast!

And at the beginning of the meeting, Li Zexuan defined these two killer

projects as top-secret projects. This high-level specification made the

gentlemen of the academy feel solemn!

"Shanchang, what are the contents of the second and third killer projects?

Will it be too stressful to carry out at the same time?"

Mo Huai couldn't help but ask.

Others also set their sights on Li Zexuan.

Li Zexuan replied: "Of course there is pressure, but it must be overcome. The

reason why I chose to establish the two killer projects at the same time has

good reasons. Let me talk about the specific tasks of these two projects!

The second killer project is to improve the current telegraph. One is to add a

signal amplification circuit to the telegraph to increase the transmission

power of the telegraph; the second is to install a detector for the telegraph

to identify useful information in electromagnetic waves. Enhance the signal

recognition ability and anti-interference ability of the telegraph; the third

is to build telegraph relay stations in key states and counties to be used as

a relay for electromagnetic wave transmission and reception, and further

increase the communication distance of the telegraph!

The ultimate goal of this killer project is to increase the effective

communication distance of the telegraph by more than a thousand miles, or even

further! The key electronic components needed in this project are already done

in the workshop. Those who participate in the project can go to the workshop

for details later! "

"The communication distance is one kilometer!"

Hearing this indicator, everyone present couldn't help taking a breath, Qianli

Sound Transmission, this is really equivalent to Qianli Sound Transmission! If

this is left before, if they hear this, they will definitely sneer, but in the

past year at Yanhuang Academy, they have seen too many incredible things, so

gentlemen, even if they think it is weird, there is no one. Refute!

Seeing everyone with an incredible expression, Li Zexuan smiled and said,

"Although this sounds weird, you have been in the academy for so long and have

a certain understanding of engineering, especially gentlemen in the physics

group. You should be clear. The goal I just said is not completely impossible

to achieve, right?"

The physics gentlemen around Mo Huai were all hesitating in the catalog, and

their faces were moving.

Mo Huai arched his hands: "Shan Chang just said that it is not completely

impossible. The crux of the question is, does the workshop have devices that

can perform power amplification and electromagnetic wave detection? If so,

there are those with a communication distance of one thousand miles. It may

happen!"

Li Zexuan heard the words and smiled and said: "This Mr. Mo can rest assured,

now that everything is basically ready, I only owe the wind! Let me talk about

the third killer project! From now on, the Academy will set up a Measurement

Standards Committee, which will be appointed by me. The general president, Mr.

Xu Hongzhi, Mo Huai, and Wang Ji, are the vice presidents. The purpose of

establishing the Measurement Standards Committee is to formulate measurement

units and measurement standards for some new physical quantities, such as

current, voltage, resistance, and so on!

In this third killer project, the three physical quantities of current,

voltage, and resistance must first be used to formulate measurement units and

standards, and to produce measuring instruments. In addition, I plan to

reformulate the unit of length, from small to large, which are millimeters,

centimeters, decimeters, meters, and kilometers. Among them, 3.07 meters is

equivalent to the current one.

One meter is equal to ten meters, one hundred centimeters, and one thousand

millimeters. According to this conversion relationship, the academy needs to

make a new measuring ruler. In the future, all projects of the academy will

use this new Measuring unit ~www.mtlnovel.com~ This is conducive to more

precise production!

The reason why two killer projects are set up and carried out at the same time

is mainly because there are many cross-links in these two projects, which can

promote and promote each other! "

(According to the literature, one zhang in the Tang Dynasty is approximately

equal to 3.07 meters)

As soon as the voice fell, there was a faint "buzz" sound in the conference

room.

Li Zexuan has to formulate units and measurement standards for new physical

quantities. He has to change the unit of length that has been deeply rooted in

everyone's mind. This is a bit difficult to adapt!

But the reason Li Zexuan gave is too strong, because the new unit is indeed

more precise than the previous inches, feet, and feet, and it is also more

conducive to precision machining and precision production.

"Haha! I know that you may not be able to accept the new measuring unit for a

while, but when you participate in precision manufacturing projects in the

future, you will know the benefits of this new measuring unit!"

Seeing the unacceptable expressions on everyone's faces, Li Zexuan smiled and

said in a deep voice:

"Next, I will announce the personnel appointments for these two assassin

projects! Mr. Mo Huai is appointed as the chief designer of these two assassin

projects, and Li Tai, Mo Chui, and Xu Hongzhi are the negative chief

designers. Several should be transferred to the academy as soon as possible.

Students and teachers with outstanding achievements in mathematics and physics

join these two killer projects! The deadline for these two tasks is four

months, and within four months, the set goals must be reached!"

Everyone was shocked when the words came out. At this time, the gentlemen of

the academy noticed that Li Tai had been standing behind Li Zexuan and asked a

student to serve as the deputy chief of Assassin Engineering, Li Zexuan. Is it

crazy?

........................