"Suck it..."

Yu Ji's words gave Wu Liang a wake-up call.

The metal block of the "mechanical seal" would close immediately after being pushed away by them, and the chisel in Bai Jingjing's hand felt like it was about to be taken away by the "mechanical seal". Isn't this weird force just "suction"?

If it's "suction"...

Wu Liang suddenly thought of a possibility. Could it be "magnetism"?

Wu Liang still doesn't know what kind of metal this "mechanical seal" is made of, but the chisel Wu Liang knows very well that it must be mainly made of iron.

Because I have seen many such chisels in caves before, these chisels have more or less rust on them.

That kind of reddish-brown rust, even Wu Liang knew it was rust even if he had no common sense.

Magnetism is exactly what attracts iron products.

Is that why Bai Jingjing felt a strange force trying to take the chisel away from her hand?

At the same time, he is different from Wu Liang.

Yu Ji's words immediately made everyone more nervous.

He has almost concluded that the corpse in the "mechanical seal" has undergone some terrible mutation, and it is also because of this mutation that everyone can't open the "mechanical seal" now.

Under this situation, everyone is a little more wary of the things in this "mechanical seal".

So at this moment, everyone turned their attention to Wu Liang, hoping that he could make a decision.

Facing everyone's gaze, Wu Liang did not respond positively to Ji, but said to him: "Old sir, please take out the improved compass I gave you."

"Master, what do you mean by this?"

Yu Ji suddenly looked confused.

What time is it now? Do we still need to explore the terrain and direction here?

What's more, if you want to learn about Feng Shui, I have already looked at it carefully and explained it in detail before. There is nothing extraordinary here, and it is not a remote place, so there is no need to read it again.

"You can take it if you are told to take it."

Wu Liang said without any doubt.

Yu Ji naturally did not dare to say anything, and quickly took out the compass from his small cloth bag, and then came to Wu Liang and presented it with both hands.

Wu Liang took the compass and glanced at the simple compass installed in the center of the compass. He saw that the compass was indeed pointing in the direction of "mechanical seal".

"Do you think this is due north?"

Wu Liang pointed at the "mechanical seal" and raised his head and asked.

"..."

Everyone looked at each other, then shook their heads slightly.

After entering the dark cave, without any reference, they had actually lost their way.

However, there is only one path leading directly to the underground palace, so the direction is not that important. Naturally, no one cares about this issue.

In fact, Wu Liang is the same, he can't figure out the north, south, east, and west.

However, he asked Yu Ji to take out the compass, not to distinguish the north, south, east, and west, but to confirm his judgment.

then.

He immediately took the compass and circled around the "mechanical seal".

After this circle, things became more and more clear, because the north needle on the compass kept changing its direction as he moved.

And the direction it points to is always this "mechanical seal".

It can be seen that when the compass reaches this place, it has completely lost its function of indicating direction.

The working principle of the compass is magnetism.

The answer is already coming.

Wu Liang was determined, and then said to Dian Wei: "Brother Dian Wei, throw your engineering shovel at the 'Ji Seal'."

"promise."

Although he still didn't understand what Wu Liang meant, Dian Wei was still the prefect and threw the engineer shovel over.

"Qiang!"

With a crisp sound, a magical scene appeared.

Not only was the engineer's shovel not bounced away, nor did it fall down, but it stuck to the hard and smooth "machine seal" like brown candy.

It’s indeed magnetism!

Wu Liang may not be completely sure about other things, but the shovel heads of the engineers of the Hu army are definitely made of fine iron, and no one can make it fake.

Just now, Wu Liang had removed the shovel head and just tied the wooden handle of a "love menstrual towel" to touch the "machine seal".

At that time, the "mechanical seal" did not suck Wu Liang's wooden handle.

"?!"

When everyone saw this, their hearts tightened again.

Just now Yu Jigang mentioned the rumor that "corpse gas sucks into the coffin", but now this "mechanical seal" can firmly suck in the engineer's shovel, which is a bit too scary.

It's not that they have little knowledge.

The main reason is that although natural magnets have been discovered in this era and are called "Ci Shi", and some knowledge of the magnetism of Ci Stone is already known, the specific principles are still only partially understood, and the reason why magnets are called "Ci Stone"

"Compassionate Stone" also means that it is a kind of stone with a loving heart. Only loving stones can attract iron tools. This explanation is a bit mysterious.

Moreover, for the vast majority of ordinary people, they will never have the opportunity to see a magnet in their lifetime, so it is understandable that they do not know much about it.

"Don't panic. I suspect that this is not caused by corpse energy, but by magnetism. The materials used to build this 'mechanical seal' are probably not ordinary metals, but also contain a part of 'cishi', so they can attract iron tools."

Wu Liang finally expressed his conclusion in a way that was relatively easy for everyone to understand, "If you don't believe me, you can try something other than iron. This 'mechanical seal' will definitely no longer be able to produce weird power."

"Brother Youcai, are you telling the truth?"

Zhuge Liang was quite a bit like a newborn calf who is not afraid of tigers. After listening to Wu Liang's words, he actually picked up a stone from the ground and threw it at the "mechanical seal".

"Snapped!"

When the stone hit the "mechanical seal", it was not firmly sucked in like the engineer's shovel. Instead, it bounced directly to the side and rolled to the ground.

"It's actually true!"

Seeing this situation, Zhuge Liang immediately relaxed and even showed off to Huang Yueying behind him with a stinking look on his face, "What am I talking about? My talented brother is not an ordinary person. He knows a lot. Now I am following him."

The talented brother has been influenced by his ears and eyes, and he will definitely become a general and prime minister in the future."

"..."

Everyone also breathed a sigh of relief.

In fact, they also had some knowledge about "Ci Shi". When they found the wooden armored man in Qi Aigong's coffin, Wu Liang found some powders of different colors from his body.

Those powders contain some of the ingredients of "cishi", and they are currently being studied in the thyme area.

Even the north needle installed on Yu Ji's compass was made by Wu Liang using some magnetic powder.

But they really didn't expect that someone would use "Ci Stone" to create such a large "mechanical seal", and the suction power of this "Ci Stone" could be so powerful that it could even steal weapons.

This is really an exaggeration.

"Your Excellency is indeed well-informed and can make such a judgment."

Sun Ye obviously also knew something about "Ci Stone" and said with great admiration, "The master's ability also amazes me. He can actually think of using such a mysterious 'Ci Stone' to build a 'mechanical seal' to achieve the goal."

To protect against intrusion.”

"What I personally admire is that the Patriarch was able to find such a large piece of 'Ci Stone'. If he hadn't discovered the 'Ci Stone Mine' and understood the properties of 'Ci Stone' clearly, I'm afraid it would have been impossible anyway.

It's impossible to build a 'mechanical seal' that is so big and has such magnetic power."

Wu Liang nodded.

These days, no one can create an artificial magnet, and no one can use electricity to create magnetism. The only source of Ci Stone is the natural magnet from the Ci Stone mine.

And all those excavated from the Cishi mine are permanent magnets that will never be demagnetized.

This thing shouldn't be left for hundreds of years, even if it is left for thousands of years, it will still be able to function if nothing unexpected happens.

besides.

What's even more remarkable is that Luban was able to make these magnetic metal blocks into such a shape and combine them into a perfectly fitting rectangular parallelepiped.

It should be noted that because Tzu Stone is magnetic, each piece has positive and negative polarities.

Anyone who has gone to school in later generations will know that the positive and negative poles have the characteristics of "opposites attract and same sex repel".

Even if it is said that it is not an easy task to combine these magnetic loving-kindness stones to firmly attract them and form them into a whole.

Basically, every contact surface of each piece of Tzu Stone must comply with the characteristics of "opposites attract", and the positive and negative conditions of other Tzu stones must also be considered...

This is easy to say.
To be continued...