Pattaya is a good place for vacation, although it is not yet the era of the people of the country to go out on vacation, but it is not impossible to seek some benefits for the people in advance, first incorporate this place into the land of my China, and then step by step to the direction of the tourist attraction to build, to build her into a world tourist attraction, this is the idea of Gao Junshan, and he also has the ability to work in this direction.

After returning to Pattaya, it rained here, and after the rain, the sky was blue and blue, and the blue of the sky and the blue of the sea were one and the same, and there was no boundary.

Gao Junshan decided to relax and spend a cheerful holiday in Pattaya.

The happiest is of course Ruan Fangqing, Ruan Fangqing is among Zhou Ruozhou, Zhou Ruolan, Cai Xiaorui, Ma Xinyue, Ma Erxi, and Hui Min, she is the youngest one, it is the age of playfulness, she was originally a child of a fisherman, and she has an unusual attachment to the sea.

However, now that it has just entered the rainy season, the wind and waves at sea are much bigger than before, and it takes a certain amount of courage to swim in the sea.

With these daughters-in-law accompanying Ruan Fangqing to the sea, Gao Junshan was able to read a book alone under the tent set up on the beach, it was rare to be so quiet, listening to the sound of the waves in his ears, looking leisurely and complacent.

Just as he was intoxicated by the book, Li Derong sent him a telegram.

The telegram was sent by engineers from the Beijing Institute of Science and Technology, who installed a small piece of copper wire near the carbon filament inside the vacuum bulb when they were doing light bulb experiments in the laboratory, hoping that the copper wire would prevent the carbon filament from evaporating and thus prolong the life of the bulb.

Unfortunately, this experiment failed, although the experiment failed, they found that there was a microcurrent generated in the copper wire, how could there be a microcurrent in the copper wire that was not connected to the circuit? The engineers were puzzled, so they sent a telegram to ask Gao Junshan for advice.

Gao Junshan was amazed after reading the telegram, he couldn't help it! Disastrous! They actually did an experiment that Edison did 200 years later.

In 1883, the great inventor Edison did such an experiment, and was doing a small experiment in order to find the best filament material for the light bulb. Because Edison was concentrating on the study of urban power systems at that time, he did not pay attention to this phenomenon. This phenomenon is known in the tech world as the "Edison effect."

Now this "Edison effect" was discovered by the engineers of Huaxia Kingdom two hundred years in advance, but they didn't know what the significance of their most experimenting was, so they came to ask Gao Junshan for advice.

Gao Junshan now believes that the difference between people's IQ is not very big whether it is ancient or modern, and if the ancients can get some allocation, they can also become great inventors.

The responsibility of assigning the engineer fell on Gao Junshan, who had not even had time to put on his clothes, and ran in the direction of the battleship in short-sleeved shorts, and he was going to rush back to the newspaper office on the battleship to send an important telegram to his Chongwen students.

Because there was no large dock to dock, the battleship was moored in the waters far from the shore, and there was a speedboat on duty at the pier, Gao Junshan hurriedly boarded the speedboat and ordered: "Quick, send me to the battleship!" ”

The captain of the speedboat thought that there was a war, how dare he slack off, and immediately ordered everyone to take their positions, and black smoke rose from the chimney of the speedboat, and he sailed away from the dock abruptly.

The captain took out his own set of naval uniforms and handed it to Gao Junshan: "Mountain Chief, the sea is windy, please put on the student's military uniform!" ”

Gao Junshan didn't say a word, took the captain's military uniform and put it on his body, the captain looked a little fatter than Gao Junshan, and the military uniform didn't fit well on the body, but it was better to wear a large piece of clothing than a small one.

The speedboat docked next to the battleship "Zheng He No. 1" and lowered a suspension ladder from the first deck, and when one end of the ladder was firmly attached to the ladder frame of the speedboat, it hurriedly climbed the suspension ladder.

When he walked into the newspaper room, he was already out of breath, and he shouted heedlessly: "Send the newspaper, send the newspaper, prepare to send the newspaper." ”

There were two female newspaper operators on duty in the newspaper room, and when they heard Gao Junshan's shout, one of them hurriedly got up and reported to Gao Junshan: "Back to the mountain chief, the telegram is ready and ready to be sent at any time." ”

Gao Junshan sat down and said to the female operator: "Don't be in a hurry, pour me a glass of water first." ”

When she first entered the door, she raised her eyebrows, but now she said that she was not in a hurry, and the female newspaper operator thought so in her heart, and she still took a water cup to get water during the action.

After Gao Junshan sat down, he calmly pondered the words, and he had to think about how to clearly express complex things in the shortest sentences.

Why is Gao Junshan so excited? Because the discovery of the "Edison effect" means that the direction of tube production has been discovered.

That's right, it's the tube. What will it mean to have a tube? This will mean a big step forward in Huaxia's science and technology.

With the tube, the tube transmitter can be produced, and the telegraph can be applied to industry and commerce, so that there will be a leap forward in both industry and commerce.

With the tube, the radio station could be built, so that the tube radio could be put into production, and with the radio, the decrees, circulars and other official documents of the imperial court of Huaxia could be quickly disseminated among the people.

These two items alone can be a great step forward for human civilization.

The female newspaper operator brought a glass of water to Gao Junshan, who took a big sip of the water cup and said, "Now you can prepare to send the newspaper." ”

The female newspaper operator sat back in front of the dispatch desk, waiting for Gao Junshan's order.

Gao Junshan first told his engineers that the microcurrent on the copper wire is generated by the electron effect, when heating the metal substance, the free electrons active in the periphery of the proton are prone to free phenomenon, and the high temperature leads to the enhancement of electronic activity, and if there is a positive voltage in the space strongly attracted, the free electrons will flow in the space.

In their experiments, it was this free electron flowing in the air that caused the copper wire to produce an electric current, which was very weak because there were not many electrons.

Gao Junshan further showed the engineers the way, telling them that using this electronic effect, vacuum tubes could be made.

Gao Junshan described the characteristics and structure of vacuum electron tubes to the students in great detail, and told them about the application of vacuum electron tubes in radio wave amplification.

When the filament is lit, the filament temperature is conducted to the cathode metal plate in the form of radiant heat, and when the temperature of the cathode metal plate reaches the temperature of the free electrons, the electrons will rush out of the metal plate. At this time, the electrons are negatively charged, and when a positive voltage is added to the screen pole, the electrons will be attracted and fly towards the metal plate at the screen pole, passing through the gate and forming an electron flow. The gate is like a switch, when the gate is not charged, the electron flow will stably pass through the gate to reach the screen, when the positive voltage is added to the gate, it is an attraction for the electrons, which can enhance the speed and power of the electron flow; On the contrary, if a negative voltage is added to the gate, the electrons must detour to reach the screen pole, and if the structure of the gate is large, the electron flow may be completely blocked.

This is how electron diodes work.