People in the Song Dynasty are lawless. Chapter 282 of the main text is vulnerable. On September 2nd, at the end of the morning, the sky and the earth were vast.
There is a vast wilderness outside Lanzhou City. On the distant western plains, countless densely packed black spots are slowly moving towards the city.
The people living outside the city had already fled. Some fled south into the mountains with their families, some hurriedly hid in the city, and some simply left their homes and fled east into the territory of Song.
The Xixia took advantage of the fact that the Song army was busy with internal reorganization and was busy with its own affairs. They also took advantage of the fact that Qingtang had been busy with business and neglected military training, hoping to capture Lanzhou in one fell swoop and then take Hehuang in the west.
Although the Song army sent 15,000 firearms soldiers to the northwest border, the news could not be delivered in a short time, and no Song army came to support.
But fortunately, two battalions of firearms troops were ordered to garrison in Huining, the northwestern border of the Song Dynasty. When they passed by Guwei Village, they were pulled over by the local general Sun Guangyi.
They originally came to the border to garrison and fight. When they heard that there was a war to be fought, the two commanders of the Firearm Battalion, Zeng Yong and Sun Guangyi, naturally came to help.
The Song Dynasty and Qingtang signed the Song-Qing Strategic Mutual Assistance Agreement, and the imperial court often said that it would provide more assistance to Qingtang's Zuo Si Luo.
So everyone was eager to try it.
In late September, the weather in the northern part of the Great Wall is slowly getting colder.
Although the grass has not yet turned yellow, the wilderness is already a mixture of brown and green.
Lanzhou City has always been the permanent residence of Tibetans, Uighurs and Han people. Many ethnic minorities here have learned to farm, and nomadism and farming coexist, making them an extremely rare nomadic farming people.
But at this moment, the farmland outside the city had long been uncultivated, and the village had been empty for a few days, with only the abandoned dogs barking wildly.
A large group of Xixia soldiers bypassed the village and headed towards the north of Lanzhou City from the northern wilderness.
It wasn't that they had the decency to avoid destroying villages and farmland; it was simply because they were afraid of wasting time. It would be better to take the main road than to go through villages and fields with obstacles, and to reach the battlefield as soon as possible.
But even so, many horses did not follow the team, and scattered into the wheat fields, chewing the newly planted winter wheat seedlings, causing heavy losses to the Hu and Han people living outside the city.
By the beginning of the Si hour, countless Xixia people had appeared in the north of Lanzhou City. The densely packed soldiers were divided into countless legions in the wilderness. Their formations were very wide, not the traditional formation, in order to prevent artillery fire.
They were about seven or eight miles away from Lanzhou city. As the Xixia generals continued to roar, forty cannons were pulled up.
These cannons are very different from those of the Song Dynasty. The most obvious difference is that they have iron hoops on them to prevent them from exploding. Even though the Xixia people had good smelting technology and their armor was better than that of the Song Dynasty, wrought iron is still wrought iron and cannot compare to steel.
"emission!"
The Xixia generals shouted loudly in the Tangut language.
"Bang bang bang bang bang bang!"
The cannon emitted huge sparks, and lead bullets instantly flew out, drawing an arc in the air and smashing towards Lanzhou City.
A moment later, there were loud noises everywhere on the city walls, towers and even inside the city.
The soldiers on the Lanzhou city wall were not to be outdone. The Tibetans did not know how to use cannons, but the Song soldiers did. They fought back with the nine cannons they had captured, and continued to fire at the outside of the city.
The two sides fought back and forth, shooting at each other from a very long distance, even though their hit rate was pitifully low.
But if the Xixia people were lucky and any shell hit the north gate and broke it down, they could easily charge into the city despite the artillery fire from the city.
While both sides were fighting fiercely, in the chaos, no one noticed that on the hillside more than ten miles to the east, there was a thousand cavalrymen, standing on the top of the hill, looking far into the distance at the vast Western Xia army to the west, which seemed to have no end in sight.
Zhao Jun did not invent the telescope. In fact, the history that Zhao Zhen read did mention how to make glass and then make a telescope.
Zhao Zhen went to experiment excitedly.
The result was a slap in the face.
tm.
He found that a lot of history was fabricated.
The method in there doesn't work at all.
It was not until I read a book called "The Three Kingdoms" that I understood the reason.
It turns out that due to the limitations of firing technology and raw materials, China's local glass firing method will cause the raw material sand to contain lead and barium, so what is fired is lead-barium glass, not transparent soda-lime glass.
Many histories are written without any reference to any information, but are simply written based on what comes to mind. Only when they are actually written do we find that there are huge problems in them.
According to the description in the book, in order to produce soda-lime glass, special methods must be used to remove the lead and barium in the sand, and then the soda-lime glass can be produced normally.
The method is recorded, which is to add sodium carbonate, or soda, during the production process.
It sounds simple enough.
However, before Belgian Ernest Solvay invented the Solvay process in 1861, and later the famous Chinese chemist Hou Debang invented the Hou process, soda was almost impossible to produce.
The book only said that the protagonist knew how to make it, but did not specify the specific method, so Zhao Zhen felt very uncomfortable.
Another great opportunity to steal ideas and go down in history was missed.
He has been called a famous thinker, educator, biologist, agriculturist, father of modern genetics, reformist pioneer, founder of the Song Dynasty's world hegemony, pioneer of the dynasty, and many other titles. Unfortunately, he is missing a chemist.
Without a telescope, Zeng Yong and his team could only observe from afar with their naked eyes. They saw a large number of Western Xia Iron Harrier cavalry cruising around the periphery, which was obviously a threat to them.
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