Although the Chuan Chuan Group's desire for telegraph machines is huge, Dr. Zhong rightly pointed out that the rapid development of Chuan Chuan Group in machinery and chemical industry is not enough to support the development of electricity. The development of electricity has a long way to go.
Now the Time Travel Group has established an electrical application system that far transcends this time and space, including simple power generation/transmission and distribution networks, radios, semi-automatic/manual telephone switches and mobile phone systems. But all of this is based on equipment from the 21st century.
On a basic basis.
Compared with the machinery industry that is now able to manufacture various simple machine tools, standard parts, and bearings, the electrical industry of Chuan Chuan Group is nothing. Not to mention the simplest equipment, even mass-produced wires have only been barely developed recently.
The insulating material uses raw lacquer and a native mixture of tung oil as the basic raw materials. This material is now barely used in telephone lines. Zhong Lishi thinks that it will not be a big problem when used in wired telegraphs. He chose to develop
It was also the wire telegraph.
Why was it necessary to build a wired telegraph first? Dr. Zhong explained it this way: First of all, wired telegraphs are the easiest to make using local methods among all communication equipment. Many people have seen simple wired telegraph equipment in "Mysterious Island".
Dr. Zhong believes that although the manufacturing process on the mysterious island is too simple, the basic idea is correct. With his ability and the equipment at his disposal, he should be able to produce better equipment. Look at the telephone on the manual switching station
The technology seems simple, but the phone manufacturing itself has to overcome some technical difficulties. Secondly, the bit error rate of wired telegraphy is low and the transmission is reliable. Although the radio environment in this time and space is very clean, there is always interference from various weather factors. In fact, in the past
Most of the commercial, civilian and military telegrams are sent using the wire telegraph network.
If Dr. Zhong were to travel naked alone, it would be very difficult for him to do this job - he would have to rebuild a whole set of indigenous chemical industries, and he would have to rely on the primitive but at least existing metal smelting industry to create wired telegraphs, and
Making electrical instruments is an extremely difficult task, but now that he has various test instruments and equipment brought from another time and space, and a fairly modern industrial system, making wired telegraphs will not be too difficult.
First, he had to fix the power supply. The power supply system of the Cross-Travel Group was AC, which obviously did not meet the requirements of the primary telegraph machine, so the power supply problem had to be solved. This problem was not a big one at first. Whether it was a hand-cranked generator or a lead-acid battery, the Planning Commission's
There is a lot of inventory in the warehouse, but Dr. Zhong decided to fully rely on the industrial foundation of the Cross-Train Group and independently develop power supplies - the inventory in the 21st century will one day be used up.
As a battery, he decided to use the Daniel battery, which is the least technically difficult. This battery is composed of a copper drum and a porous tank inside. The copper drum is the positive electrode, and a porous tank inside the
The zinc rod serves as the negative electrode, dilute sulfuric acid is injected into the porous tank, and the outside is a saturated copper sulfate solution.
This kind of battery is quite successful in design. It does not have the acid mist problem that early batteries often had. It can work for a long time without supervision and has stable voltage output. In addition, the plates of this kind of battery will not be corroded.
, can be used for a long time.
The Daniel battery had been the main power source of the telegraph before 1875. Although its output voltage was only 2 volts, a ten-slot battery was enough to supply the telegraph with long-term stable operation. The biggest disadvantage is that it cannot be recharged.
After discharge, the liquid must be refilled for maintenance, which causes great pollution to the environment and affects the health of the operator. However, compared with voltaic batteries that can only be used as laboratory toys, this kind of battery has high practical value.
.
The raw materials for Daniel batteries are all provided by the time-travel industry. Zinc is the Japanese lead of this time and space. The Time-travel Group imported a large amount of low-purity Japanese lead from Guangdong and re-smelted and purified it - the Industrial Energy Commission originally planned to use
To make tinplate.
After Dr. Zhong drew the design drawing, the machinery factory quickly produced a sample. The outer tank of the battery was made of glass. The corrosion resistance and leakage prevention effect of glass are better than ordinary materials, but the disadvantage is that it is fragile.
Fortunately, ordinary wired telegraph machines cannot be moved around.
After the finished product came out, Zhong Lishi conducted a short-circuit spark discharge test to verify that the battery could work. He connected two rubber copper wires from the two electrodes of the battery, then put on protective gloves to prevent electric shock, and then
The two copper wires slowly approached and came into contact. A very small electric spark, which was difficult to distinguish with the naked eye, flashed at the moment when the two copper wires connected. This spark was very small and difficult to detect unless you observed it carefully.
Then he measured the battery with a multimeter, and the output voltage was stable at 2 volts - the Daniel battery was a complete success. Dr. Zhong immediately named this battery "Zhong's No. 1 Battery". It was called No. 1 because
Later, he plans to continue to steal the achievements of future generations-such as rechargeable lead-acid batteries.
Zhong's No. 1 battery still had some room for improvement. Then he used the information from the technical data to process and manufacture a zinc sulfate solution to replace the dilute sulfuric acid in the battery. This method is said to be able to prolong the life of the battery.
The service life of the zinc rod. He also asked the machinery factory to make a trial product and prepare two batteries for use at the same time to see if this statement is valid.
After Dr. Zhong concentrated on the research on batteries and wired electricity, Lingao had no choice but to continue using the traditional method of blowing the whistle. In the past, the Time Travel Group did not pay much attention to the timekeeping work, and simply used the Beijing time brought from another time and space.
Before traveling, travelers had replaced their timepieces with mechanical ones except for a few special-purpose places, and also carried a large number of mechanical watches as reserves. All public and private timepieces use the Fengcheng wheel.
The marine clock on the display shows Beijing time calculated from the GMT calibration.
In order to provide public time reporting to the indigenous people and travelers, the whistle is blown four times every day at 6:00, 12:00, 18:00, and 24:00 at the thermal power stations in Bairencheng and Bopu. The whistles are broadcast by Lingao Cable in Bairencheng and Bopu Port.
The radio station announces the time every hour at a fixed time.
Now they realize that it is no longer necessary to continue to use this time system. First of all, Lingao and Beijing are not in the same time zone. Secondly, in the political territory of the future traversing group, it is located in the north, with a poor natural environment and is not in the same time zone.
The seaside city of Beijing does not enjoy any special status - some extremists have proposed renaming it "Youzhou" once the crossing is successful in China.
The research team chaired by Wang Luobin discussed this issue several times and concluded that they could enable local time in Lingao, which is the time in East Seventh District.
"To be honest, I don't see any practical significance for us from the East Eighth District to the East Seventh District. Apart from satisfying some people's inexplicable hobbies." Ma Qianzhu is more concerned about this mentality than reality.
I don’t understand the changes made based on the factors of meaning.
"It's not a bad thing anyway." Wang Luobin said, "At least the timekeeping must be more accurate. After all, there is an hour difference - it seems that some people want to use Lingao time instead of Greenwich time."
"Don't, don't be fooled. With this change, a lot of technical information will have to be revised, it will be too troublesome." Wen Desi was not interested in this proposal either.
Wang Luobin doesn't want to change the Greenwich time either. The most accurate time they have now is the Greenwich time on the navigation clock on the Fengcheng ship. If he changes it to Lingao time, the original time may not be as accurate.
"We want to set up an observatory in Lingao." Wang Luobin said.
The purpose of establishing an observatory is of course not to observe Halley's Comet or to see where there are signs of extraterrestrial life. The basic purpose of this observatory across the group is the same as that of the ancients, mainly for accurate calendar and time services.
"Not only an observatory, but also a meteorological observatory." Ma Qianzhu suggested, "Weather forecasting is very important to us. Not only must we have a meteorological observatory, but we must also establish a meteorological monitoring network."
"There is also a hydrological station." Wen Desi recalled that Yanquezhi had mentioned to him that in order to collect hydrological data on the main rivers in Lingao, at least a basin-wide observation station must be established in the Wenlan River Basin.
"Okay, this matter can be regarded as a systematic long-term plan." Wen Desi spread out a large-scale map of Lingao, "The observatory can be located in the high mountain ridge area."
“Isn’t this place going to engage in animal husbandry?”
"In addition to animal husbandry, observatories and weather stations can also be visited. I propose to make the high mountain ranges the focus of our next phase of construction." Wen Desi said, "Relocating our scientific research institutions and databases to mountainous areas will facilitate security and protection.
Once the enemy launches an attack, Bairen City is likely to turn into a battlefield - flat ground on all sides, and it will be difficult for us to achieve comprehensive defense."
Another problem is the typhoon in Lingao. So far, the Chuanchuan Group has not experienced the taste of a typhoon. According to the warnings of several amateur meteorologists, the late summer and early autumn is the period when Lingao is most likely to be hit by typhoons - although
Lingao is an area that encounters relatively few typhoons along the coast of Hainan Island, but the power of typhoons cannot be underestimated. Floods often occur. The main bases of Chuanchuan Group are either at ports or by rivers. They are prone to disasters. Typhoon damage in high mountain ridge areas is very high.
It is much smaller and less likely to cause floods. As for mudslides, people at the Grand Library have checked the information and have not found such records in the Gaoshanling area. Generally speaking, it is a safe place.
Gaoshan Ridge has abundant water sources, a good natural environment, and the temperature is milder than that in the Wenlan River Basin. The geological conditions are also very stable - in the era of digging deep holes and only accumulating grain, the local garrison dug large war-ready caves here.
Gaoshanling has certain feasibility as a strategic reserve base for Chuanchuan Group.