After making arrangements to search for and collect lac, the group went straight back to Jiangzhou on the highway without stopping.
The Jiangbei Luo Xin bandit group has made another move, and Song Yang has to guard against it.
Three days later, Jiangbei spies sent accurate news that the Luo Xin Group's thieves were heading northeast.
Three days later, the spies came to report and finally found out the reason.
It turned out that the Sumo tribe under the control of the Bohai Dudufu in Hebei Province united with the Khitan and Shi Weinan to invade.
These three ethnic minorities were originally peaceful border residents. After the natural disaster, the population in the Central Plains was concentrated, and the disaster was far more serious than these nomadic peoples.
After two or three years of development, the Sumo tribe gradually grew stronger and annexed the Wuluohu tribe and the Tieli tribe.
It became the largest force in the Bohai Governor's Mansion.
The current leader of the Sumo tribe is Boye, the son of the old leader. Boye is an ambitious guy.
Being powerful, he was unwilling to stay in Liaodong and decided to go south.
The Sumo tribe quickly captured Liaocheng and Yingzhou.
Now that we have entered Pingzhou and Jizhou, we can reach the capital directly in the next step.
Although the capital is now destroyed, Fanyang Jiedushi, Yizhou and other places in the southern part of Hebei Province are still there.
These are Luo Xin's territories.
In order to prevent Boye from going south, Luo Xin could only lead his troops north to fight back.
"What should we do now? Should we send troops?"
After receiving accurate information, Song Yang immediately summoned Jiangzhou's core personnel to discuss countermeasures.
"If we send troops now, we can take advantage of the emptiness of the Central Plains to seize the Central Plains and drive away the Luo Xin bandit group. Therefore, I believe that we can send troops at this time." Yu Ming, as the head of the army, was the first to speak.
"That's inappropriate." Gao Liangping frowned.
"Your Majesty, if we send out troops now, even if we can capture the Central Plains, the main force of the bandits will be in the Northeast."
"If they abandon the Sumo people and move to the Central Plains, they will have endless troubles."
"With our current military strength, it is not difficult to defeat them, but if we want to annihilate them, we may not have enough manpower."
"Besides... the Sumo people are invading south. Whether there are Luo Xin bandits or not, someone has to deal with them. It's better to let them bite dogs first."
Master Gao made it clear that if the thieves turned into rogue bandits again, it would be even more troublesome to exterminate them.
"Could they annex the Sumo tribe and become stronger?" Fang Zhe asked worriedly.
"I'm not afraid of that. We have squatting tiger cannons, and more of them won't have any effect." Yu Ming shook his head.
"Well, more people just means more labor force." Song Yang took over.
"Master Gao is right. If we send out troops now, I will force them into rogues."
"It's better to wait until they decide the winner before taking action. If Luo Xin can eat the end of the millet, then we will save the trouble of dealing with the end of the millet later."
Song Yang thought about it and finally agreed with Gao Liangping.
"Let's not be idle. Let's go deep into Liaodong and try to learn more about their battle situation."
"Yes. I'll make arrangements soon." Gongsun Qi responded.
"Now that we have decided on a strategy, let's just sit back and watch the fight between tigers and tigers for the time being."
"Don't slack off in your daily training. You never know when we will send troops north."
Song Yang looked at Yu Mingdao again.
Yu Ming also clasped his fists to accept orders.
The matter is settled, and I have some free time for the time being.
After the three meetings, everyone settled down to their own affairs.
Song Yang devoted his energy to the research of phonographs and shellac records.
Previously, more than a dozen pieces of lac were collected at the foot of Mount Lu.
Although it's not much, it's enough to make three or five records.
As for the gramophone, there are patterns in the encyclopedia.
Although there are no detailed pictures, Song Yang also understands the basic principles.
I learned this stuff in middle school physics, and the encyclopedia also has theoretical knowledge.
It shouldn't be too difficult to make.
Song Yang found a carpenter to make him a frame and shell.
Then he asked the blacksmith to make the clockwork and gears for him.
There are also some parts.
Then the bulky research and development began.
Song Yang's laboratory has been renovated many times and now has a steam boring machine that can operate turning and drilling.
You can also make some small adjustments yourself.
"Ouch... I'm really not one for R&D. It took me three days to build a gramophone before I came up with these few things!" Song Yang covered his waist and slumped down on the chair.
It took three days to get a few parts, but it was still too early to make a gramophone.
"Your Majesty, I will give you some massage." Tong Qian's considerate massage service was immediately arranged.
"How about I do it for the prince? You tell me how to do it."
After pressing for a while, Tong Qian volunteered.
"Hmm. Okay then. I'll teach you how to use this machine, just be careful."
Song Yang taught Tong Qian how to operate it step by step.
"Zizzizi~"
"Yes, right here, hold it with your hands and push it up and down slowly."
"Look at the rhythm of this axis and just follow the rhythm."
"Yes! That's it! Very good!"
I have to say that when it comes to operating the boring machine, the girl gets started very quickly.
The sound of grinding sounded, and the parts began to be slowly processed.
There are not many parts that need to be made, the main thing is to adjust the size.
But even so, it took another three days.
Three days later, Song Yang finally made his handmade phonograph.
"Can this thing sing?" Tong Qian looked puzzled.
"Does this tube produce sound?" Shen Xiaowan asked, looking at the large copper speaker of the gramophone.
"It can produce sound, but it needs a record to match it. The kind of shellac I found before is used to make records."
Song Yang explained.
A few days ago he sifted the shellac, then ground it and washed it.
It's been drying for the past few days.
Song Yang took a look at the dried lac powder and found that it was completely dry.
Later, you have to go through the process of hot filtration, gel washing, dehydration, and tableting to get the shellac without impurities.
Then it is compressed with pure shellac to make a record.
Song Yang actually developed phonographs and records together.
While purifying the lac, a sample of the gramophone was made.
The next day, the shellac was purified again and reached an impurity-free state.
The shellac sheets are heated and melted into glue. The glue is poured into the mold and then pressed to produce the record.
Song Yang planned to use a number of thirty grooves per centimeter to record sound.
In order to achieve the accuracy of this processing, Song Yang spent a lot of effort processing the engraving head.
If his body hadn't been modified and his hands were steady, others wouldn't have been able to process such finely carved blades.
Soon, the record was produced.
Whether it succeeds or not depends on the test results.
The engraving cutter head is pressed onto the vinyl record, and the rotation and sound are produced by shaking the remote sensor, allowing the cutter head to carve textures of different shades on the vinyl record.
Cut the flat and smooth recording into spiral, winding grooves that correspond to the sound.