In about ten seconds, there was a sudden "bang", and all the coal that had been backfilled in the pit was broken out and sprayed out.

Even some of the surrounding coal has been crumbled.

Some of the particularly large chunks were carried up by the blasting currents and splashed into the distance.

The whole earth shook at the sound of the explosion.

Qiao Wanshi felt dizzy for a moment, then returned to normal, and the shock caused by the blast was only for a moment, and then disappeared.

And the people in the tents poured out at once, and some people didn't even have time to put on their clothes, and looked around nervously.

Everyone is asking the same question, "What's wrong, what's going on?" What happened? ”

Everyone was looking, and Qiao Wanshi naturally ran out and found Wang Yiyan and Huang Xu.

After Sikong Fan returned to his tent, he quickly washed his face, changed his clothes, and made sure that his body was clean, then he put on a cloak and came out and ran to Qiao Wanshi's side.

"What just happened!" Qiao Wanshi said very exaggeratedly.

The others, of course, were at a loss.

At this time, someone shouted, pointing to the place where the blasting had just occurred, "Over there, there's a big crater over there!" ”

Originally, the pit dug by Sikong Fan was not big, but with this blasting, the pit became two or three times larger.

Everyone went over there together, and when they walked, they felt that something was wrong with the ground.

"Wait a minute." Sikong Fan said, stop the crowd from moving forward.

He bent down and picked up the coals from the ground with a single pick.

When the others saw him do this, they all bent down and picked at the ground, and everyone picked a hand of coal.

This...... How can the coal seam, which originally needed to be chiseled with a chisel, fall off as soon as it is picked?

Of course, not all places are picked off at once, but there are obvious signs of loosening, as if they were all chiseled with a chisel.

"There's no problem with this place, right?" Wang Yiyan asked.

Sikong Fan stepped on it hard and shook his head, "It's quite solid to step on, but it's a little loose, there shouldn't be any problem." ”

Having said that, everyone didn't dare to go any further, just like a group of people walking on the ice in a lake, and suddenly being told that the ice was loose, who would dare to move again?

I'm afraid that if I am not careful, the ice under my feet will completely melt and sink them all to the bottom.

Sikong Fan called two guards who were responsible for protecting them, and walked cautiously to the big pit in front of them.

With each step, they will tentatively poke in front of them to make sure that the ground is solid, and then they will continue to move forward.

Qiao Wanshi tried hard to hold back her laughter.

Because she knows the real reason.

Sikong Fan also knew, so Sikong Fan's tentative pace made Qiao Wanshi want to laugh even more.

Finally, Sikong Fan and the others tentatively walked to the big hole that had collapsed, and looked down, a very deep hole, and the traces of artificial digging had long been collapsed.

After the three of them saw it, they came back together.

"I don't know what's going on, there's a big pit over there, and the coal layer under our feet should be loose." Sikong Fan said.

No one can explain why it became like this and what happened, not even Wang Yiyan, the person who had been in Qin Tianjian, couldn't explain it clearly.

There was no anomaly in the sky.

However, the consequences of this incident are always good.

Everyone walked back, grabbed their tools, and got to work.

According to the rules of the mine, work starts at dawn, then starts at eight o'clock, rests for half an hour after eating, and then starts at twelve o'clock at noon, and starts at six o'clock in the evening.

After dinner, depending on the morning and evening, depending on the dark, dry for a while.

After drying today, it is noticeably faster than before.

There is basically no need to change the big chisel to take the chisel, just the small chisel is lightly chiseled, and it is loosened.

Chisel around, the coal will automatically break, and the largest piece will not exceed the size of a fist.

In this case, Qiao Wanshi adjusted the direction of labor, only a small number of people held chisels to loosen the surface of the coal seam, and most people used back baskets to load charcoal.

Such a basket of backs is actually a great waste of manpower, but there is no way, she can't make a coal truck.

When she thought of the coal truck, Qiao Wanshi suddenly had an idea, why couldn't she make some coal trucks?

It's not good to be mechanically powered, it's not okay to be a rickshaw?

Two or three people pushing a cart and pushing the coal back is much easier than carrying a basket.

And if you have a small car, you can pack it casually, and it is much more than a few back baskets.

During the time when the coal yard was open, Qiao Wanshi heard many people say that her back was worn out because she was carrying charcoal all day long.

For the sake of the workers' backs, Qiao Wanshi specially found someone to make a batch of cotton mats and put them on the workers' backs, but it could only reduce a little friction on the backs.

Thinking about making a car, Qiao Wanshi immediately took action.

In this era, there are horse-drawn carriages, and if you make a small car suitable for the coal yard, others will not think it is very strange, but will only praise Qiao Wanshi for being smart enough.

Before she walked out of the tent, Qiao Wanshi made a "ding" sound in her head, and the system: the host excavated coal for the benefit of the people of Jinzhao, and rewarded two blasting bombs.

Two blasting bombs are equivalent to 20,000 points, although the blasting bombs cannot be exchanged for points, but Qiao Wanshi is very happy.

Joe Wanshi: Thank you system.

Sincerely.

System: For the sake of the host's dedication to the workers in the coal plant, the system reminds the host that it can be used as a transmission belt.

Qiao Wanshi: How? Are you going to sell me the drawings again? So how to solve this motivation? Also use wind turbines?

She has the drawings of the wind turbine, and there is also an electric motor in the crusher, so she can also make a new motor to drive it.

So you don't have to ask the system to buy drawings.

The system didn't answer Qiao Wanshi's question, it seemed that it was just to give her a reminder.

Qiao Wanshi's drawings were not carried with her, she felt that she could make a transmission belt, so she turned around and went to find Sikong Fan.

"Can you send someone back and bring the drawings from the second compartment on the right side of my study?" Qiao Wanshi asked.

Sikong Fan nodded, "Yes." ”

Sikong Fanfei Pigeon sent a book to Luo Youheng, asked Luo Youheng to take the drawings, and then sent a reliable person to send the drawings to them.

In this gap, Qiao Wanshi began to make transmission belts.

She couldn't find a rubber belt, so she found a thick cowhide and sewed it up.

He also made several wooden wheels, and wrapped them in long strips made of cowhide, and attached iron shafts to each wheel, and gears on the heads.

I also have to make a chain, so that I can drive every gear to rotate, and bring the cowhide on the wheel to follow the movement of some machines, Qiao Wanshi found that her ability in this area is really getting stronger and stronger, and without any drawings, she has made a rough idea of the transmission belt.