If you add leverage, rope, explosives and other driving forces, the speed should be faster.≤ However, if you rely on the mechanism, the materials and structures that can withstand at twice the speed of sound may still be a bit difficult to achieve now. Thinking of this, Zuo Zhicheng gave up the plan to continue to accelerate. Anyway, the explosion loss of twice the speed of sound is already very powerful.

What's more, as long as Zuo Zhicheng saves enough in the imaginary space, he can use it whatever he wants during battle.

You should know that the explosion of the three extraordinary martial arts like him just now completely squeezes every inch of his body's potential, consumes extremely physical strength, and even has a great burden on blood vessels, bones, and muscles.

Like the shot just now, even if he may only use it 5 or 6 times within an hour, it will seriously damage his body and leave sequelae.

But now through the mouth of the Yellow Spring and the Immortal Space, he is equivalent to storing his usual combat power in advance, and then burst out instantly during the battle.

If he had the mouth of the Yellow Spring when he was fighting with Fenghou, there were dozens or hundreds of explosion arrows with double the speed of sound in the imaginary space, he would not have been so embarrassed.

The explosion arrow with double-speed of sound may not be as destructive as the Tianhao Taiguang Divine Thunder Fire, but its penetration power is stronger. For example, when encountering wind, sand, water mist, mud, and dust, the Tianhao Taiguang Divine Thunder Fire will lose a lot of energy due to heating obstacles, scattering and refraction, etc. The explosion arrow with double-speed of sound can consume very little kinetic energy and penetrate these.

Subsonic steel needles, double-sonic explosion arrows, these are just the beginning.

According to the needs of different scenarios, Zuo Zhicheng will use different attacks to imaginary space from weak to powerful destructive power, making himself a super humanoid arsenal and humanoid weapon platform.

Then he walked back and came to the carriage. He opened the mouth of the yellow spring and sucked the explosion arrows on the carriage into the imaginary space one by one.

Qing Yueqiu also opened her mouth wide when she saw this scene. Although she saw Zuo Zhicheng exerting force in an instant, she suddenly left her vision. She couldn't see clearly what was going on, but now she could see clearly.

But she was just surprised. She didn't ask anything because she didn't want to make Zuo Zhicheng embarrassed. As early as a year ago, Zuo Zhicheng's experience, experience and means showed her time and time again, which had already made her know that the other party knew a lot of Taoist techniques, and was constantly practicing to become stronger.

But she never asked about the reason for this, let alone told anyone.

I saw Zuo Zhicheng sucking all the explosion arrows into the imaginary space in a blink of an eye. He counted and there were about a thousand arrows. Just these thousand explosion arrows, I don’t know how many craftsmen you need, how much materials and time you spend to make them.

After all, this kind of explosives is very dangerous, and with contemporary craftsmanship, there is still a high failure rate.

If Zuo Zhicheng hadn't brought Zhu Yuwen to be the sucker and sponsor him, let's not talk about whether he has any other way, it would probably be difficult for him to get so much with his own financial resources.

Next, I saw the bone spurs behind Zuo Zhicheng tremble violently again, and the three extraordinary martial arts exploded again, holding the explosion arrow in one hand. When the speed reached its peak, it stabbed out like a spear. Finally, it was stored in the imaginary space.

Even with Zuo Zhicheng's physical strength, he would have to rest after exerting such force for five consecutive times. In other words, he would create up to five double-sonic explosion arrows in an hour. If one thousand, it would take him two hundred hours to complete them all.

Qing Yueqiu stood aside and saw Zuo Zhicheng running around from the beginning to the end. Her eyes moved, as if she could see some tricks.

When she saw Zuo Zhicheng stopping, she came over. Seeing that the other party was panting and green blood flowing out from the corners of her mouth, her eyes tightened: "Are you okay?"

"It's okay. Just take a break." As he said that, Zuo Zhicheng took all the rest of the carriage back. He planned to complete the rest in the laboratory, and then go out once an hour to generate double-sonic explosion arrows.

He asked, "How about the other two things?"

Qingyueqiu said: "The quarry has been settled, but the size you requested is too large. Although there are no other requirements, it may take two months to complete it.

As for the tiger and wolf army, the target has been selected, which is the Taiming Thief in the northwest, and that group of bandits is about 2,000. They also need to investigate and formulate plans, and set off in about a week and will notify you at that time."

Zuo Zhicheng thought for a while and said, "Let them two weeks later, I will insert a few people into it."

"Yes." Qing Yueqiu nodded: "However, how did you ask Zhu Yuwen to agree to these things? I'm afraid it's not just about taking a student."

"I promised him something, and in addition to that, I would open a school."

"What?" Qing Yueqiu said in surprise: "School?"

"It's similar to the sect. Teaching some simple martial arts and Taoism is to help Nanwan cultivate some talents." Zuo Zhicheng said: "But the preparation process will take one or two years, which is not a recent plan. Zhu Yuwen and I are only the founders. For specific details, you can ask your father."

Qing Yueqiu didn't say anything, but he became more and more curious about the school Zuo Zhicheng wanted to open.

"What would it look like."

...

In the hall, what Zuo Zhicheng was waiting for this time was not Ji Nanxian. Now, except for one hour of class every day, he only teaches Ji Nanxian and Sun Feibai for one hour each week.

Today is Sun Feibai's first class.

"You should already understand your specialness and know that you have something like a lifespan?"

"Yeah." Sun Feibai said with some anticipation: "I heard Brother Xu talk about some common sense. But I still don't understand what my life can do."

Zuo Zhicheng said lightly: "Your life is called Chiguan. He has few abilities, but only one is to make all things burn."

"Burning everything?" Sun Feibai silently retelled this sentence.

Zuo Zhicheng nodded: "Burning everything sounds simple, but it is actually very complicated. Because there are too many concepts in air, water, stones, raindrops, Yangtze River, river, hurricane, thunder, and all things.

And you can burn these things, even yourself, are included.

So your ability is very dangerous. You have been bound by common sense since childhood. In fact, it is also an instinctive self-protection. Next, I will teach you how to control and utilize this ability. Before I confirm that you have complete control, you will definitely not be able to use your ability without my commands."

Zuo Zhicheng looked at Sun Feibai in front of him and said in his heart: "If you learn fast enough, you can help me a lot."

Just when Zuo Zhicheng was thinking this way, Sun Feibai, opposite him, suddenly snapped his fingers and saw a small cluster of flames jumping out of his index finger, like a villain dancing and dancing.

He said with a smile: "Sir, is this completely in control?"

Zuo Zhicheng frowned. Even he couldn't help feeling a little jealous in his heart at this moment. (To be continued, please search Piaotianwen, the novel is better and faster!
Chapter completed!