After a thunderous thunderous sound, the defenders hiding behind the walls of the Byzantine city suddenly felt the city walls shaking. The tremor was much greater than when Liang's heavy catapults were slammed.

After the stone collapsed and bricks cracked, a pit as big as a bowl appeared in the city wall, and countless firing cracks spread out from the depression.

Alexander, Zhao Yun and Ma Chao and others could feel deafening even outside the hundred battles, and couldn't help but block their ears with their hands.

As the roar continued to sound, they could see small black dots flying out of the tubular object called cannons at high speed and shooting towards the Byzantine city walls. This was naturally the shot put that was finally stuffed into the cannon by the soldiers, and the scientific name was the cannon shell.

Its speed is much faster than the arrows shot by the bow and arrow and the stone bombs shot by the crossbow. It flew over dozens of battles in the blink of an eye and bombarded the city wall. The naked eye could see that after it hit the stone wall, the splashing stone dust mixed with a small ball of dust and fog rose into the air. Some projectiles also hit the metal gate of the Byzantine east gate, which immediately caused a deep pit the metal surface of the gate to sink into a fist-sized pit.

Half an hour later, Zhao Yun ordered the commander to call the battalion commander of the artillery team and asked in person: "You guess how long it takes to use your artillery to bombard the city wall!"

The expression of the camp commander was a little embarrassed at this time, and he replied with his fists: "General, the general has underestimated the strength of the city wall before. Earlier, when we tested these artillery in Taixifeng, whether it was an ordinary adobe city wall or a stone city wall, dozens of cannons were shot in turn, and hundreds of cannons could collapse after two or three hours. But..."

Zhao Yun said impatiently: "Just say directly when will the Byzantine wall be able to collapse, don't say the rest of the nonsense."

The camp commander frowned and said, "Go back to the general and continue to bombard, and it should be able to collapse in two or three days."

In fact, shortly after Feng Yu captured Taixifeng and discovered the source of saltpeter in the Greek fire workshop, gunpowder was born under Feng Yu's guidance.

However, Feng Yu did not intend to make gunpowder popular in the army. The reason is that he intends to keep it strictly confidential as strategic materials and technology for a long time. If the gunpowder weapon used by individual soldiers is installed in the entire army, it is obviously impossible to keep the secret. Because the formula of this black gunpowder is very simple, and a sample of gunpowder was taken away by outsiders and some experienced Eastern alchemists or Western alchemists can easily analyze the gunpowder formula. The second reason is that these primitive individual thermal weapons are not necessarily easy to use. For example, the bombing thunder that uses gunpowder to achieve explosive effect may not be as good as the blasting bombs that use oil and gas to make explosives. Muskets, according to the current manufacturing process and quality. If used as long-range weapons, one hundred musketeers are not as good as a longbower. If they are fired at close range, their power is much larger than that of individual crossbows, but their shooting speed is more than twenty times slower.

So Feng Yu only planned to temporarily tinker with one application of gunpowder - artillery. This artillery was drawn by Feng Yu based on his memory and handed it over to some Persian craftsmen to complete the manufacturing of the first generation of artillery. It was just that making cannons was simple, and it was not so easy to create a powerful cannon.

These Persian craftsmen made hundreds of samples and tested hundreds of times in secret workshops, and only then did they accomplish this. However, as the first generation of products, their performance quality is still far from imitating the red cannons in the history of the original world.

After hearing the reply from the camp commander, Zhao Yun nodded and suddenly thought of something, and asked: "I saw it. You should use a kind of gray powder-like raw material when bombing. Have you brought enough of these materials? Is it enough for bombardment for two or three days?"

The camp commander replied again: "General, we have brought fifty or sixty cars of these gunpowder, which should have been enough. But the shells that were shot were too heavy and could not be carried much. We need to allocate some brothers to help us recycle them and reuse them."

"It doesn't matter. I will arrange for someone to do this." Zhao Yun replied. At this moment, a loud and hustle scream came from the rumbling cannons. Hundreds of cavalry beside Zhao Yun had already galloped and rushed straight toward the city of Byzantine.

It turned out that the defenders in the city saw that the situation was not good, and knew that if the enemy continued to bombard the enemy for a long time, they would sooner or later destroy the city wall. They organized a cavalry to suddenly rush out of the city to raid the Liang army's artillery position. They planned to destroy these strange and powerful weapons of the Liang army while the Liang army had not had time to react.

However, Liang Jun was prepared for this. The soldiers who fired guns and filled medicine ran backwards with gunpowder baskets on their backs. Some of the loaded gun barrels simply ignited the gun twists.

With a few loud bangs, several lead bombs flew out. They hit a Roman soldier impartially. After a ball of blood mist dissipated, only half-pulled corpse below the chest was left on the horse's back, and then fell off the horse like a broken piss bag. Several war riders were frightened by the loud noise and ran around wildly, allowing the riders on the horse's back to keep shouting. The shell did not stop, and hit the chest of a war horse's bloody corpse. The body of the war horse was suddenly stopped and fell to the ground, while the Roman cavalry on the horse's back flew out.

The other Roman cavalry finally rushed to the Liang army's artillery positions in fear. Some of them stabbed the cannon's barrel with their cavalry, probably thinking that there were some key components like the torsion spring of the crossbow, and as long as they were broken, the cannons could be scrapped.

Some stuffed the torches that had been prepared long ago into the cannon chamber, or threw them into the pile of items not far behind the cannon. However, the piled items were solid projectiles made of lead and iron, but there was no stack of gunpowder.

However, the gunpowder depot was carefully protected behind the Liang army formation outside the hundred battles to prevent the artillery from exploding the cannons from causing a death toll. When the cannons were fired, people from artillery teams kept moving forward with their backpacks. Therefore, the Byzantine defenders' actions were of no use.

While they were doing these useless work, the heavy cavalry of the Liang army also came close. These Roman cavalry were naturally no match for the heavy cavalry of the Liang army. In less than two rounds, they were picked by these heavy cavalry with a cavalry and smashed them with maces, killing and killing dozens or hundreds of people. Then they left the corpse and the lost master's war horse and retreated back into the city. Some heavy cavalry of the Liang army chased them reluctantly, but when they approached the city gate, the crossbows shot from the scorpion crossbows on the city walls shot densely into the city, forcing the heavy cavalry to give up their pursuit. The thick metal gate at the east gate of Byzantine City closed again.
Chapter completed!