African Nationhood

Chapter 298 Hertz’s Elegy

After receiving Philip Clark's testimony, Shi Jintang felt more at ease.

Governor Rhodes only doubted the motives of the Nanhua Company and had no concrete evidence.

But Rhodes could not be given any reason to continue to doubt, so buying Philip Clark became the most urgent thing at the moment.

After some "persuasion" and inducements from the Military Intelligence Office, Nanhua Company paid 1% of the equity of Jingou Mining Company and 200 pounds of monthly expenses in exchange for Philip Clark's surrender.

He would regularly pass some false intelligence to Governor Rhodes. At the same time, the Military Intelligence Office installed a white female spy next to Philip Clark to act as a supervisor.

If this middle-aged white man dares to rebel, he will be silenced directly.

All personnel at the "Kimberley Diamond Processing Factory" in Walvis Bay Port are included in the monitoring scope of the military intelligence room. If anyone turns over to civilians to spy on intelligence, they will be arrested directly.

……

After handling the matter, Shi Jintang issued the first, second, and third death penalty orders since the establishment of Nanhua Company, for death row inmates Tan Yiming, Zeng Gang, and Li Hongbo.

These three people all provided intelligence to the British to a greater or lesser extent, and they also openly claimed that they were proud of earning extra money from the British, so they would not regret their death.

Although the death penalty is carried out secretly, their families will receive the following punishment: "five years of forced labor, never allowed to serve in the military or politics, and not allowed to do business for three generations."

Those who accepted the benefits from the British and did not have time to betray the Nanhua Company will undergo forty years of forced labor.

Those who failed to report the information and concealed the benefits they received from the British will undergo ten years of forced labor.

This matter will be highlighted in the "South China Newsletter", and anyone who sells out the company's interests will pay a heavy price.

This incident also sounded the alarm to the entire Nanhua Company. Officials at all levels needed to verbally educate the free people under their rule about the consequences of those who betrayed the company's interests.

……

After dealing with these matters, it was already the end of November, and Shi Jintang went to see Tesla and Hertz again.

Now Tesla has preliminary ideas about converting audio signals into electromagnetic waves. He and Hertz have already figured out how to convert audio signals into electromagnetic waves.

The antenna and detector were not difficult, but they encountered difficulties in converting the binary signal carried in the electromagnetic wave into sound.

According to the working principle of the radio, high-frequency signals are received through the antenna, and then restored to audio signals through certain demodulation, and then converted into sound waves through the output component, and then played back.

The dilemma between Tesla and Hertz was how to restore the received signal into sound waves. Here, a frequency modulator and a detector were used.

The frequency modulator can amplify the received electromagnetic wave signal, and the detector directly restores the information in the electromagnetic wave signal.

This involves complex knowledge of capacitance and resistance, which is Shi Jintang's shortcoming. He can only explain the principles and uses to the two masters. As for how to make the actual object, it depends on Tesla and Hertz.

The hands-on ability of these two people is beyond words. According to Shi Jintang's request, it took more than a week to make the high-frequency frequency modulator and the detector.

With these two things in place, the radio is almost complete. Next, a key item will be used - the vacuum tube.

The principle of the electron tube comes from Edison's filament experiments. When he was experimenting with carbonized bamboo filament material, he installed a small piece of copper wire near the carbon filament inside the vacuum bulb.

He accidentally discovered that a copper wire that was not connected to the circuit generated a weak current due to the hot electrons emitted by the carbon wire. This phenomenon he named the Edison effect.

In the original time and space, in 1904, the British physicist Fleming used the "Edison Effect" to create an electron tube. However, the effect of this electron tube was not very good. It was not until 1906 that an American inventor added a grid to the electron tube based on Fleming's work and made a "triode".

The "triode" is not only more responsive and able to emit music or sound vibrations, but also integrates three functions of detection, amplification and oscillation.

Therefore, Shi Jintang directly proposed the "transistor" plan and told Tesla and Hertz that this triode would bring a new revolution.

Tesla was very interested in this little thing and took the initiative to take over the task of manufacturing it.

Since the principles of radios have been understood and the principles of various components have been straightened out, it will be more convenient for Tesla to make these things.

Trust him, it won't take long to have the finished product.

……

When Hertz was free, he took Shi Jintang and continued to study how to expand the communication range of radio.

After more than two months of exploration, they successfully extended the communication distance of radio communication to 2000 kilometers.

But as a result, the voltage required by the radio transmitter group increased sharply, reaching a record-breaking 15 volts.

The transmission distance of 2000 kilometers is enough for Nanhua Company's communication needs from east to west. Shi Jintang is very satisfied with this, and Hertz expressed his gratitude.

Hertz readily accepted this, but during this period he became increasingly uncomfortable, suffering frequent severe headaches, until he suddenly fainted in front of Shi Jintang.

Only then did Shi Jintang realize that Hertz was thin and had pale cheeks. He stopped what he was doing and took Hertz to Anhai Town Medical College.

After some diagnosis, Lawen Schneider regretfully told Hertz, "Dr. Hertz, you may be suffering from a rare disease. This disease falls under the category of internal medicine, and we are not sure yet.

You'd better stop working with high intensity, otherwise your health will decline rapidly and your life may be in danger. "

Hertz's face turned even paler when he heard this, and he couldn't help but sigh: "Well, I thought I could make greater achievements in science, but I didn't expect that I could only stop here."

Seeing Hertz so depressed, Shi Jintang couldn't help but comfort him.

"Dr. Hertz, your achievements have been very high. Your discovery has inspired many people, and more people will benefit from your discovery in the future. So your most important job now is to rest and recuperate. "

Hertz nodded, "I want to go to Europe and find a hospital to check again. Maybe the doctors there have better methods."

Regarding Hertz's persistence, Shi Jintang couldn't bear to tell him the truth, and said to him with a smile: "You are right, if you don't find a good solution there, I hope you can come back to Southwest Africa.

There is always a room prepared for you at the Anhai Town Guest House. "

Hertz smiled and nodded, "Okay, I will always remember the help you and Mr. Tesla gave me."

Shi Jintang smiled and said nothing, just patted the man on the shoulder.

……

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  (End of this chapter)