What the hell is it?"

"I can't see clearly!"

"Scary!"

"Do you want to make it so horrible?"

"Is there a brother from Anhui City in the live broadcast room, help me call 120 and ask, is there still a bed in Donghua Hospital?

"Prosperity, democracy, civilization, harmony, freedom, equality, justice, rule of law, patriotism, dedication!

......

There was a commotion in the barrage.

Say anything.

But there is no doubt about it.

Both old and new viewers were almost all frightened by the scene in the dark crypt.

The next second.

With the song "MainTitles" slowly flowing out of the drone, the terrifying atmosphere has been upgraded again!

An ethereal and eerie melody, reciprocating and repeating.

It's impossible to find its beginning and end.

It's like it's never going to end.

At this time, even some brave sailors couldn't help but tremble in their hearts.

Hurriedly shut down.

No more talking.

Everyone's eyes were staring at the "big guy" who didn't know the truth in the dark.

In the mysterious atmosphere, the light of the torches is getting darker and darker.

Fluttering and flickering.

It can go off at any time.

There is no way to see the scene in front of them.

The only thing that is certain is that the "guy" has not moved the whole time.

There was no sound either.

Doesn't seem to be a living thing?

After having this thought in his heart, Lu Yu made up his mind and didn't greet the audience.

He took a sharp breath and walked over.

One-step.

Two steps.

Three steps.

The distance is getting closer.

Everything becomes within reach.

Soon.

When the melody of BGM took a sharp turn, Lu Yu finally came closer.

Stand your ground.

He took advantage of the momentum and poked the torch forward.

Finally, through the faint light of the fire, I saw the true face of this behemoth!

That's right.

It is indeed not a living thing.

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

At first, Lu Yu thought it was an unknown beast living in the crypt.

And even ready for battle.

But now it seems that this is not the case.

It turned out that hidden in the darkness was a huge stone mechanism!

Due to the large size of the trap, coupled with the dim light and atmospheric rendering.

From a distance, it is inevitably a little strange.

Secondly, because everyone's nerves have been in a state of tension.

When you see something unusual, it is naturally easy to have a preconceived idea.

I thought Lu Yu had met something amazing.

At this time, I learned that it was not "this guy" and it was not some kind of demon or monster, a snake and scorpion.

The audience was also relieved.

Hanging hearts.

Finally let go.

Raise the torch.

Lu Yu looked at the entire mechanism and didn't miss a single detail.

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

It's not the work of modern craftsmanship.

Most likely the work of the ancient Olidians.

Secondly, the whole mechanism was carved out of the original stone.

It has an inverted T-shaped structure.

At the bottom is a rectangular stone base.

A stone pile the thickness of an arm was embedded in the riverbank.

Even after thousands of years, it is still strong.

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

It is the same as the gravel seen in the cave tunnels before.

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

Towering high.

Up to the top of the cave.

Spectacular.

The mast is covered with all sorts of weathering marks and cracks.

However, because the air inside the cave is humid.

The whole is quite well preserved.

Unfortunately, many of the parts on the mechanism are in disarray.

Only a devastated body remained.

The top of the mast has long been unrecognizable.

A huge circular winch was suspended.

The winch is very distinctive.

The edges are concave.

Looks like it's supposed to be a pulley.

The diameter is more than five or six meters.

It's amazing.

Everyone never dreamed that there would be such an ingenious mechanism in this damp crypt.

After looking inside and out.

Lu Yu opened his mouth thoughtfully:

"Guys, if I'm not mistaken, this must be a simple lifting device built by the Olidians. ”

"It's the crane we know as well. ”

Historically, the earliest cranes appeared in 10 BC.

The ancient Roman architect Vitruvius had a detailed description of hoisting machinery in his architectural manual.

The specific shape and lifting principle are similar to this.

It's all one mast.

The top of the pole is equipped with pulleys.

The position of the mast is fixed by a drawstring.

Use a winch to pull a cable through a pulley to lift a heavy load.

In addition to the sloop crane.

There are also cranes with two masts that form a herringbone shape.

The humanoid crane can move the lifted heavy objects laterally.

However, the amplitude is very small and the operation is very difficult.

It wasn't until the 15th century, when the Italians invented the jib crane, that this problem was solved.

This type of crane has an inclined cantilever with pulleys at the top of the arm, which can be both lifted and rotated.

However, before the 18th century, all kinds of lifting machinery used by human beings were still based on manpower and animal power as the main power source.

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

But that's it.

The lifting techniques mastered by these long-eared people living in Olidia were also a thousand or two thousand years earlier than those outstanding architects of ancient Rome......

Staring at the behemoth standing in front of you.

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

These natives put the crane here.

Is there any special use?

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

And a mysterious underground fortification?

The question that Lu Yu was thinking about was also what the audience was most concerned about.

Everyone has been discussing the barrage to the bottom of the matter:

"These people aren't going to build pyramids, aren't they?"

"Brother, you're thinking too much!"

"I think it's probably enough to be fed!" (manual funny)"

"Leather pants and leather pants, there must be a reason!"

......

Layout and environmental conditions inside the cavern.

It's not suitable for any big project.

With the arrival of the rainy season, the water level of the dark river rises wildly, and even the strongest fortifications are difficult to resist.

Therefore, this crane is categorically used for another purpose.

But the specific reason is still not understood.

What is certain, though, is that the ancient Olidians must have done something great with it.

Otherwise, there would be no painstaking digging of the cave.

I've got all this flashy stuff.

Stand in front of the crane.

Lu Yu pondered for a while.

Next, a casual glance of the gaze.

Suddenly made his heart move.

Turned his attention to the discarded stones.

The purpose of building a crane is nothing more than to move heavy loads.

Otherwise, it will be meaningless.

The long-eared stone statues of Olidia are scattered all over the island.

Large and small, you can see it almost everywhere.

In a primitive society where productivity is not developed and all labor depends on manpower, it is by no means easy to move these stone statues to a suitable location.

So, the crane came into being.

Furthermore.

The underground water system in the island is very large and extends in all directions.

The built stone statue can be transported to the boat raft by crane and waterway, which can perfectly solve the problem of transportation.

A flash of inspiration flashed in my mind.

gradually made Lu Yu figure out the ins and outs of this.

After telling the audience about his conjectures.

He continued:

"When the rainy season arrives and the water level of the dark river rises, the raft will naturally float and transport it to where it wants to go. ”

From this, we can judge that there is definitely more than this one cave on the entire north shore. ”

"The transport system of the Olidians, which should be spread all over the island......"

"The ebb and flow of the dark river is completely different from the tide of the sea, and the only way to control the water level is to reach the peak of groundwater storage, and when the atmospheric precipitation reaches expectations, the water level of the river will naturally rise, creating huge buoyancy. ”

"The key to judging the rise of the water level of the dark river, in addition to the seasonal climate, there is also the most intuitive way, that is, the spring of the temple. ”

"It's clear at a glance and seamless. That's how they did it, and they accomplished this impossible task......"

Hydraulic transport has been around since ancient times.

As early as the primitive society, the tribes that lived together in the water had learned to dig wood and get boats instead of walking.

The Khufu boats in Egypt and the Beijing-Hangzhou Grand Canal in China are all outstanding representatives of hydraulic transportation.

Speaking of which, the clever ancient Olidians should also be the best among them.

Taking advantage of the island's unique environment, he has excavated countless natural Grand Canals for himself.

Turning the impossible into a possibility.

In order to verify his idea, Lu Yu then stepped around near the crane.

Outcome.

And a lot of strong evidence was found.

There are a lot of crane parts on the ground that have long been petrified.

casually picked up a copper hand-pulling ring from the ground, and said excitedly to the camera:

"Friends, it seems that I should be right in my analysis. ”

"Back then, they used this behemoth to transport stone statues, materials, and even supplies one after another to all parts of the island through this ancient canal. ”

"When the water level of the river drops, people will carry the corresponding supplies to the rafts, and when the water level rises, the rafts will float in response. ”

"Ladies and gentlemen, this is the wisdom of mankind, good at discovering, drawing inferences from others, and thus building one extraordinary glorious civilization after another. ”

Look at the dilapidated fortifications in front of you.

The audience naturally made up the busy scenes in the cave back then.

For the nihilistic illusions of the ruling class.

The coolies sweated like rain, working and living in the dark underground.

toiled hard until the tribe perished.

This kind of thing seems sad, but it is an inevitable development of history.

Because wisdom always comes at a price.

The same is true for social development.

However, for Lu Yu, none of this mattered.

The most important thing at the moment is that he has inadvertently found a very convenient way home!

As long as he wanted, this ancient canal should be able to transport him anywhere on the island!

Instead of going on a rough road by land, taking the water route is a good idea.

Come to think of it.

He raised the corners of his mouth and said to the audience with a smile on his face:

"Since the Olidians have provided us with this convenience, we must take advantage of it. ”

"So, brothers, this time I decided to be lazy and build a raft on the spot, and let Dark River take us home!"

With this idea, Lu Yu immediately took action.

Leaving the cave.

Back in the woods, he took out his stone axe and began to gather the materials necessary to build the raft.

As soon as I heard that Lu Yu was going to build a raft.

The rhythm of "Yu Bi Shen" in the barrage was brought up in an instant.

It's too much fun.

"The Feather Sinking is online!"

"The anchor is such a clever little ghost!"

"What kind of stalk is Yu Bishen?

"Manual funny!"

"Sit and wait for the overturn, and set up a post as proof!"

"Haha!"

......

Five minutes later.

Holding a large bundle of wood, Lu Yu returned to the camera.

After taking a breath, I immediately set about building the raft.

The production process is still the same.

Start with a base and use a wooden stick to splice the boat surface.

It's very simple.

Fortunately, I brought enough cutting tools with me this time, and if I only worked with my bare hands, I don't know how busy I would be.

Soon, I split and looked at and tied up, and it took an hour.

A simple small raft appeared in front of the audience.

"Alright, brothers, that's pretty much it. ”

"Now let's go in and try it, and if we can, let this guy give us a ride. ”

Return to the cave again.

Lu Yu simply sorted out the various equipment on his body, and then put the raft on the river, picked up the oars, and sat on it.

A homemade raft is certainly no match for a professional canoe.

Buoyancy itself is poor.

So as soon as I sat down, the whole raft sank into most of it.

The icy river water suddenly didn't reach Lu Yu's waist.

The draft is extremely deep.

In addition, due to the rapid flow of water, coupled with the fact that it was not well controlled.

He almost capsized on his back.

Luckily, I had an oar in my hand to control the balance.

Otherwise, it really overturned this time.

In the live broadcast screen, Lu Yu waved the oars and danced wildly.

The splash made the lens wet.

Although the content is a bit vague, the audience still laughed again and again, and kept posting barrages:

"Overturned!"

"The feather will sink!"

", there's an inside smell!"

"I guessed the ending before I even started!"

"Haha, 6666!"

......

Soon.

Master the rhythm of rafting.

The raft gradually stabilized.

Along the turbulent dark river, Lu Yu went all the way to XI.

Blazing fast.

That's a lot faster than walking in the jungle.

The only downside is that there is no lighting.

Restricted visual field.

It's extremely uncomfortable.

You can only rely on the faint light of the drone.

See the way forward.

Fortunately, the space in the cave is not cramped and open enough.

Even if the line of sight is not good.

But there's also plenty of time to see what's going on ahead.

In order to judge the situation of the river in time.

Since the Olidians used this river to transport supplies back then.

The course and hydrological conditions of the river should not be too bad.

But.

Factors such as the inducement of geological movement and the change of lanes in the groundwater system are taken into account.

During the drive, Lu Yu still did not relax his vigilance.

Always note the front of the river, for fear of any accidents......