It was impossible for anyone to see clearly the scene in front of them.

The only thing that's certain is that the "guy" didn't move from beginning to end.

No sound was made.

Doesn't it look like a living thing?

After having this idea in his mind, Lu Yu made up his mind and did not say hello to the audience.

He took a deep breath and walked over.

step.

Two steps.

Three steps.

The distance is getting closer.

Everything becomes within reach.

Soon.

When the BGM melody suddenly changed, Lu Yu finally came closer.

Stand firm.

He took advantage of the situation and pushed the torch forward.

Finally, with the faint light of the fire, I could see the true appearance of this behemoth!

That's right.

This thing is indeed not a living thing.

But it’s even more amazing than a living thing!

At first, Lu Yu thought it was some unknown beast living in the cave.

Even ready for battle.

But now it seems that the truth is not the case.

It turns out that hidden in the darkness is a huge stone mechanism!

Due to the large size of the mechanism, the dim lighting and the rendering of the atmosphere.

From a distance, it seems a bit strange.

Secondly, because everyone’s nerves are always in a tense state.

When seeing something strange, it is naturally easy to make preconceptions.

They all thought Lu Yu had met someone special.

At this time, I learned that "this guy" was not a monster, a snake, a scorpion, or a beast.

The audience also breathed a sigh of relief.

Hanging heart.

Finally let it go.

Hold up the torch.

Lu Yu looked through the entire agency without missing a single detail.

First of all, the stone production process is very rough.

It is definitely not the result of modern craftsmanship.

It is most likely the work of the ancient Eurydians.

Secondly, the entire mechanism is carved out of raw stone.

It has an inverted T-shaped structure.

At the bottom is a rectangular stone foundation.

Stone piles as thick as arms were embedded in the river bank.

Even after thousands of years, it is still strong.

Around the stone base, there are piles of various stones.

It is exactly the same as the gravel seen in the cave tunnel before.

In addition, there is a cylindrical stone mast standing in the middle of the stone foundation.

Towering high.

Straight to the top of the cave.

It's spectacular.

There are various weathering patterns and cracks all over the stone mast.

However, because the air inside the cave is relatively humid.

The whole thing is quite well preserved.

But unfortunately, many parts of the mechanism are in pieces.

Only a devastated main body was left.

The top of the stone mast has long been changed beyond recognition.

A huge circular winch hangs.

The winch is very distinctive.

Edges concave.

It looks like it should be a pulley.

According to visual inspection, the diameter is more than five or six meters.

It's amazing.

No one had ever dreamed that such a delicate mechanism existed in this damp crypt.

After looking inside and outside.

Lu Yu spoke thoughtfully:

"Everyone, if you guessed correctly, this should be a simple lifting device built by the Oridians."

"That's what we know as a crane."

Historically, the earliest crane appeared in 10 BC.

The ancient Roman architect Vitruvius once had a detailed description of lifting machinery in his construction manual.

The specific shape and lifting principle are similar to this.

It's all one mast.

The top of the pole is equipped with a pulley.

The position of the mast is fixed by guy ropes.

A winch is used to pull a cable through a pulley to lift a heavy object.

Except for the sloop.

There are also two masts used to form a herringbone crane.

The humanoid crane can move the hoisted heavy objects laterally.

But the amplitude is very small and the operation is very difficult.

It was not until the 15th century that the Italians invented the jib crane to solve this problem.

This kind of crane has an inclined cantilever with a pulley on the top of the arm, which can both lift and rotate.

But before the 18th century, all kinds of lifting machinery used by humans still relied on human power and animal power as the main power sources.

It is very limited in terms of lifting capacity, range of use and working efficiency.

But even so.

The lifting technology mastered by these long-eared people living in Oulidia is one or two thousand years earlier than those outstanding architects of ancient Rome...

Staring at the behemoth standing in front of him.

Lu Yu shook his head and sighed, thinking in his heart.

These natives placed the crane here.

Is there any special purpose?

Come to think of it, this cave is not a tunnel dug to avoid war?

But a mysterious underground fortification?

The question on Lu Yu's mind is also the one that the audience is most concerned about.

Everyone has been discussing in the barrage:

"Are these people going to build a pyramid?"

"Brother, you think too much!"

"I think it's probably because I'm full! (Manual funny)"

"Leather pants put on leather pants, there must be a reason!"

The layout and environmental conditions inside the cave.

It is not suitable for building any big projects.

With the arrival of the rainy season, the water level of the underground river has skyrocketed, and even the strongest fortifications may not be able to withstand it.

Therefore, this lifting device definitely has another purpose.

But the specific reason is still unclear.

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