ask sword 2

85 The Way Forward
"what?!"

Di Wu didn't hear Li Ang's words clearly, lowered his head and shouted.

Li Ang shouted loudly: "All the jet holes are in pairs! Find a way to grab the hollow metal plates above the holes on both sides, turn on and off, repeat several times, and maybe stop the turbulent wind from gushing!"

"how do you"

Di Wu's voice was covered by the wind. He glanced at the people who were struggling to support him, gritted his teeth, held up his shield, moved forward, and came to Zhu Yuyin's side.
According to Li Ang's instructions, he squatted on the ground and opened the closed hollow metal plate, and pulled down a metal plate next to it.

As before, the second metal plate that was pulled up was accompanied by a rolling sound, and the wind first weakened and then strengthened.

After more than ten repetitions, the sound of something shattering suddenly sounded in the space behind the metal plate.

The holes corresponding to the two metal plates are no longer gusting wind.

'efficient! '

Di Wu widened in astonishment, and beckoned to the rest of the people on the ground. Everyone crawled forward and continued to close the second, third, and fourth groups of astral channels.

After a quarter and a half, all the turbulent air passages close to the surface were closed, and the turbulent vortex lingering in the hall also weakened a lot. Only the location below the dome, there was still the turbulent vortex left.

Everyone who escaped from death pulled on Zhangdao Guirong's respirator, which was exhausted, and lay on the ground panting heavily.

Di Wu, who had wounds all over his face, approached, bowed his hands to Li Ang, and said respectfully, "Jun Li Xiaolang, what are you doing?"

"How did you know that switching on and off the hollow metal plate repeatedly can close the gas channel?"

Zhu Yuyin, who was also slightly injured, walked over and asked directly.

Li Ang glanced at him and did not answer directly, but said slowly, "Have you ever driven a big boat on the river?"

Zhu Yuyin was taken aback for a moment, "What?"

"If you have a lot of experience in boating, you should know that two boats can't sail too close side by side in still or flowing water—

Once that happened, the two ships would approach each other uncontrollably, crashing into each other.

The situation would be even more dangerous if the two ships were sailing close behind one another.The ships behind will collide with the ships in front under the action of the current. "

Li Ang said casually, and said silently in his heart, in water flow or airflow, if the speed is small, the pressure will be large, and if the speed is large, the pressure will be small - this is the basic theory in fluid mechanics, Bernoulli's principle.

If two balloons are hung on a rope, close to each other but separated by a certain distance, when blowing toward the middle, the two balloons will approach and collide with each other due to the fast speed and low pressure of the air in the middle.

In the memory of the other world, the warning yellow line drawn on the high-speed rail platform is also the same principle - if you approach a high-speed train, it will be "pushed" to the train by the suddenly reduced air pressure, causing an accident.

"The principle of those holes is basically the same.

Look carefully at the holes on the wall, they are all in pairs, with a hollow metal plate above.

When a metal plate was closed, the wind first weakened and then became stronger with the sound of the bones in the mountain wall.The adjacent holes are no longer ventilated. "

Li Ang said casually: "The wind changed after the sound of rolling. I guess that the two adjacent holes each have an air intake channel.

The two passages meet in a chamber and lead to the source of the turbulent wind. "

Li Ang casually drew a schematic diagram in the shape of "丄" on the ground, and said: "In the depression of the chamber, there is a spherical object - probably some kind of solid stone ball or iron ball.

The object is located in the depression of the chamber and does not move normally.

When the hollow metal plate on the left is closed, the airflow in the chamber will preferentially flow out from the hole on the right.

The airflow on the right side of the chamber accelerated, generating power, like 'sucking' the stone balls, rolling to block the airflow channel leading to the right hole.

At this point, the airflow to the left hole is reduced due to the blockage—a period of no wind in the first place.

But soon, because the airflow is still entering the chamber continuously,
The hole on the right has been blocked by stone balls, so the remaining air can only go to the hole on the left to flow out, resulting in an increase in the flow of the astral air in the hole on the left.

Simply put, the stone ball in the chamber is a direction selector.Which side is blocked, the airflow on that side will be enhanced.

What I asked Di Wu to do was actually to make the stone balls roll back and forth in the chamber, destroy the stone balls with astral gas, block the airflow passages on both sides, and reduce the air output on both sides. "

Di Wu and others felt that they understood, but they did not understand.
Li Ang glanced at Zhu Yuyin and said, "Of course, your method of changing the position of the pattern according to the 64 hexagrams may also be effective.

In short, as long as you can survive.

However, because in each chamber, the stone balls may be further smashed at any time, resulting in the re-generation of Astral Wind.

Best to act as soon as possible. "

Hearing Li Ang's words, Jiao Cheng pursed his lips and stood up from the ground.

The broken dragon stone at the entrance of the corridor is indestructible. Several tattooed strong men and two sword repairers have tried it. The chisel can be chiseled, but the time it takes is unknown.

And the earth-melting talismans they brought were quite slow to take effect.

After thinking for a while, Jiao Cheng left five people in place, and continued to use the earth-melting talisman to melt the rock formations around the Broken Dragon Stone, making sure to find a way out when the Gangfeng regenerated.

The rest of the people went to the center of the hall and found the bronze door in the middle of the hall, embedded in a rotatable ring,

After prying open the bronze door, he did not see the stairs leading to the bottom, but instead saw a thick, pitch-black liquid with a pungent smell.

"Is this. Shizhi?"

Jiao Cheng was extremely shocked. He took the bamboo pole handed over by his hand and stretched it into the grease, that is, the oil layer, to stir.

Oil is viscous, has no outlet, and has no hidden compartments.

Below the bronze door is really just a pool of oil.

"Where's the road?"

Jiao Cheng clenched his fists and glanced around.

The cave hall has only mountain walls without any obstructions.Judging from the sword-marked poetry at the dome, it is undoubtedly the handwriting of the exiled immortal.

But what about the most critical path?
Jiao Cheng asked his subordinates to carefully look around for traces and tried to push the ring around the bronze door, but doing so only made the oil pool spin.

"Is it possible to ignite the Shizhi in the pool?"

Jiao Cheng muttered to himself, still unable to make up his mind.

Oil is flammable and difficult to extinguish, so if you ignite it rashly, you don't know what consequences it will cause.

"."

Li Ang looked up at the dome and suddenly said, "Is it amber on the dome?"

"Ok?"

Jiao Cheng and the others followed Li Ang's gaze and looked up, only to see that the dome above the bronze door was faintly flickering with brownish-yellow light, like a mass of amber, with a long iron cable shadow condensed in the middle.

"If the road is on the dome, will the petrolatum pool be ignited to melt the amber above?"

Li Ang estimated the distance from the dome and the influence of the upper stray wind, and suddenly realized the function of the rotatable ring around the oil pool, and muttered: "So it is"

(End of this chapter)