The room goes through the late Ming Dynasty, and the back door leads to North America at the beginni
Chapter 161 Yellow dynamite breaks through the city gate! Internal strife in the Ming army! (page 12
Zhang Kejian and others who were watching the battle in the city gate tower did not expect that the enemy could break through the suspension bridge so easily and attack the Moon City Gate.
They all lost their minds for a moment.
After coming back to his senses, Zhang Kejian slapped the battlements angrily, "How can the Li'an Civilian Ministry be so timid in fighting? The enemies have all arrived at the city walls, but the country soldiers haven't fired a single shot!"
Because Yuecheng was too important and Liu Sheng could only attack one side, Zhang Kejian arranged for guerrilla Li Anmin to take charge of Yuecheng.
Wang Chengzeng looked ugly.
Li Anmin was one of the two rural guerrillas in Xiangyang. In theory, he was first under the supervision of him as the prefect, and then under the supervision of Zhang Kejian, the supervisor.
Therefore, he couldn't help but defend the Ministry of Civil Affairs of Li'an: "The enemy has so many red barbarian artillery, and they all use explosive ammunition. The rural soldiers have never seen such a formation, so naturally it is difficult to parry it for a while."
Zhang Kejian was too lazy to pay attention to Wang Chengzeng, and immediately asked someone to send an order with a flag, asking the Li'an Ministry of Civil Affairs to eliminate or drive away the enemies under Yuecheng as soon as possible.
On the other side, Liu Sheng also did not expect that Helian Yue could rush to the bottom of Yuecheng in one wave.
But he reacted quickly.
They decisively dispatched two hundred guards from the Huben camp and one hundred guards from the Jieying camp to escort a pack of explosives to blow up the city gate.
This explosive bag is not big, only a few dozen kilograms, and a soldier can carry it on his back.
In addition to the multi-armor players, the Huben Battalion also uses guns and explosives. Therefore, the specific task of carrying explosive packs on their backs is also the responsibility of the Huben Battalion.
Zhou Xing, who was selected into the Huben Camp in Ruyang and served as the commander, won this opportunity to make meritorious deeds.
He carefully put the backpack containing the explosives on his back.
Tongshi's personal guards also looked nervously.
There is no room for them not to be nervous.
Because they knew that the explosive bag contained not black gunpowder, but a yellow gunpowder developed by the commander!
As personal guards, when Liu Sheng tested this explosive bag made of yellow gunpowder in Tianmu Mountain, they had seen its power with their own eyes.
Therefore, it is clear that this explosive pack is enough to send dozens of people around to the sky!
"Hurry up!"
The captain in front urged.
"Knife players must protect Zhou Shichang when crossing the bridge!"
At the stone bridge of the moat, it is difficult for Xiangyang City's bows, arrows and muskets to shoot, only artillery can.
But whether it was the artillery on the city wall or the moon city, it was either bombarded by the rebel army artillery and temporarily disabled, or the gunners were killed and injured and could not be used for the moment.
The bows and arrows of the soldiers on Yuecheng could hit the flying bridge.
But first they have to eliminate Helianyue and others under the city.
Under the urging of the order, a few rural soldiers risked their lives and threw down the prepared rolling stones, killing and wounding three or five rebels in one fell swoop.
As for the gold juice and kerosene on the Moon City Wall, almost all of them were blown over by the first two or three rounds of artillery.
Needless to say, it also caused a stench on the city wall, and some kerosene caught fire, injuring many rural soldiers.
There were also rural soldiers who risked their lives to shoot arrows at the rebels who were crossing the flying bridge, but they had little effect and were easily killed by the rebels with matchlock guns and bows and arrows.
In this way, under the cover of his colleagues, Zhou Xing quickly rushed to the city gate carrying an explosive pack.
The soldiers of the first battalion arrived first. Under the command of He Lianyue, they pried open the stone slab at the corner of the city gate and dug out a small pit, which went straight under the city gate.
Zhou Xing felt that this pit was of little use, but it did not dampen the goodwill of the friendly forces.
He deftly took off his backpack, put it into the pit, and then pulled out a lead from inside.
Then he shouted: "Everyone retreat, at least thirty steps away!"
He Lianyue also knew the power of this explosive pack, and immediately led hundreds of soldiers to cover each other and retreated to the stone bridge, leaving only Zhou Xing and a few guards from the Huben camp to protect him.
On the moon city wall, guerrilla Li Anmin finally dared to show his head and take a look at the enemy's situation.
But he looked confused.
"How come the enemy troops withdrew?"
No one answered Li Anmin's words.
Upstairs at the city gate, Zhang Kejian and others also looked puzzled.
"Could the enemy want to blow up the city gate?" General Liu Guang first guessed.
Although Wang Chengzeng was not familiar with military matters, he did know some common sense.
He heard this and sneered, "It would take at least five to six hundred kilograms of gunpowder to blow open the Moon City Gate. Which eye did Liu Shen use to see the enemy transporting gunpowder?"
The soldiers in the camp were drunk and causing trouble, which caused too much trouble for the prefect Wang Chengzeng, so he even disliked Liu Guangxian.
Liu Guangxian did not refute, but looked at Yuecheng Gate, feeling uneasy...
In front of the rebel formation, Liu Sheng kept staring at the situation at Yuecheng Gate with a telescope.
Black gunpowder had actually developed almost as fast as modern times in the late Ming Dynasty.
For example, the optimal ratio of saltpeter, sulfur, and charcoal, granulation, etc. have been explored and used for many years.
Even Liu Sheng could only slightly increase its power.
And if you want to rely on black gunpowder to blow open a city gate, it will take at least hundreds or thousands of kilograms to be safe.
If you want to blow up the city wall, you need to follow the example of the Taiping Army, dig a tunnel under the city wall, and bury a coffin of explosives.
However, this tactic takes a long time and is not suitable for all terrains.
A moat like Xiangyang's is really just a river. It is extremely difficult and almost impossible to dig a tunnel through it.
One of Liu Sheng's preparations for a successful surprise attack on Xiangyang was to use local methods to make a small amount of yellow explosives under simple conditions.
This is the most suitable explosive he can produce under the current conditions.
The main component of yellow explosive is picric acid.
This stuff has been used as yellow fuel since it was first discovered.
It took decades for people to realize that it was explosive and could be used as explosives due to an accident.
It is also relatively simple to make. Just mix nitric acid and indigo in a certain proportion to get a yellow substance.
There is also a small amount of pure nitric acid in Liu Sheng's villa, but it is really very small. It is too wasteful to use it to make picric acid.
Liu Sheng's "nitric acid" was made using local methods, and it contained a lot of impurities, but it was still usable.
Therefore, the power of his yellow explosive is inferior to that produced by chemical methods.
But it is enough to blow up the city gate with dozens of kilograms.
Because the explosive calorific value of picric acid is 5 times that of black gunpowder, the volume of detonation gas is 2.5 times that of black gunpowder, and the explosion power of the same weight is 90 times that of black gunpowder!
Even with this weakened version of yellow gunpowder, the explosion power is estimated to be more than 50 times that of black gunpowder.
The explosive package used to blow up the Moon Gate weighs 40 kilograms, which is equivalent to 2000 kilograms of black powder!
Under the telescope, Liu Sheng saw that Zhou Xing first asked his companions to retreat, and then he lit the one-meter-long fuse.
In order to ensure the explosion of yellow gunpowder and its stability during transportation, Liu Sheng built a small bag of black gunpowder into the yellow gunpowder - black gunpowder is more likely to be detonated by fire, thereby detonating the bag of yellow gunpowder.
After Zhou Xing lit the fuse, he immediately ran towards the stone bridge.
As for the attack from the city wall, he couldn't care about it.
He wore chain mail, cloth face armor, and an iron helmet. The bows and arrows of the soldiers in the city could not hurt him, unless someone hit him with a blunderbuss or a squatting tiger cannon.
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