This iron ladder, with the mankind's belief in iron and steel in the middle of the last century, has simple craftsmanship and solid structure. It is the purest model of pragmatism, without spending a little energy for decoration.

If it had been buried elsewhere for more than half a century, it might have been rusty, but here is the Sahara desert with almost zero air humidity. After removing the sand, it looks like it has just been produced from the factory.

When you go deep into the desert, no one brings extra things, especially things that are heavy and take up space.

Zhang Zi'an knocked on the steel skeleton with his knuckles and thought that the aluminum alloy bracket they brought was used to set up a canopy so that the off-road vehicle can avoid exposure to sunlight during the day. So this iron ladder ... is it the same purpose?

This seems a bit unreasonable, because similar effects can be achieved with bamboo poles and the like. Germans are not stupid. How can they do stupid things?

He was thinking, and suddenly heard Richard howling: "Quack! Uncle Ben guessed that the ladder is for climbing!"

Isn't this nonsense? The ladder is not for climbing, is it for sitting?

Obviously told him to shut up, but he kept teaching, and now Zhang Zi'an was a bit fierce. He grabbed a handful of sand from the ground and stood up, trying to squeeze it into his mouth.

I saw it flapping its wings and flying high against the pyramid. After flying to a certain position, it gathered its wings, but did not fall like a stone.

what happened?

Zhang Zi'an and the elves are standing at the foot of the pyramid and looking up. Although the polished golden shell can't be learned, it is absolutely smooth. There is no platform where Richard can settle down. .

It turned around, curled its **** outwards, his head and upper body disappeared into everyone's field of vision.

"There is a hole here. Uncle Ben always drills when there is a hole, and enters all holes ... Ga!"

With a scream, it suddenly disappeared from there.

Zhang Zi'an and the other elves were choked.

Wait!

This is the south side ...

When he recalled the previous visit to the Great Pyramid, he noticed that there were two so-called "ventilation ducts" on the north and south sides of the king's tomb and the queen's tomb, each measuring 21 cm by 21 cm square, starting from the tomb and extending obliquely upward at a 45-degree angle , Stopped until he reached the outside of the pyramid wall, but there was no hole penetrating the wall.

What exactly is the "ventilation channel" used for? There are many opinions, but there is no consensus, leaving many unsolved mysteries to future generations.

Is it ... Richard fell into the air duct?

Then who opened the air duct?

He looked down at most of the iron ladder still buried in the sand, and the answer was ready.

Although Richard's noise is annoying all day, it's not good to let it go.

They hadn't seen the opening of the ventilation channel before, because they were standing at the foot of the pyramid and had limited vision when looking up.

Zhang Zi'an activated the drone again and flew to the place where Richard disappeared. Sure enough, he saw a dark hole with irregular gravel remaining on the edge of the hole, probably also blasted by these German soldiers.

The drone's pickup faintly captured Richard's sorrow from a distance in the air duct, and echoed.

Retracting the drone, Zhang Zi'an returned to the car and fetched a folding shovel. He cleared the sand and said, "There is a way."

After a lot of effort, the iron ladder was finally dug out completely from the sand.

The weight of the iron ladder is quite heavy, and the structure is similar to the Russian matryoshka. The smaller section is nested inside the larger section, and the larger section is nested inside the larger section.

When in use, pull out an appropriate length according to the needs, and there are fixing bolts at the joints between the two sections. After tightening the bolts, the smaller section will not automatically retract into the larger section.

Stable, sturdy, simple and efficient design ideas, from this telescopic iron ladder, you can see the development level of the German military industry.

As for why not use lighter aluminum, because this ladder is fully extended and very long, for those who climb the ladder, no one dares to climb the ladder that is too light when it touches-due to the principle of leverage, the arm is too long Even if a few strong men are supported below, it's useless. It should be down. You can only make the ladder heavy, so that it can stand firmly.

Zhang Zi'an visually inspected the height, stretched the iron ladder most of it, and put all his energy on his shoulders to stand it up, and then put it on the pyramid-this is not that he is too virtual, but this iron ladder is almost Hundreds of pounds are heavy, heavy and long, and it is already great to stand it alone.

Unfortunately, there is an error in his estimated height, which is short.

Why not pull directly to the maximum length? It's still a problem of the arm. The longer you pull it, the harder it is to stand up the ladder.

He was about to put the ladder down and pull it out, and the elves had seen his intention.

Fina yelled, "Don't bother! Go away, our palace is going up!"

Zhang Zi'an blushed and wanted to put the ladder down again, before he could talk, he felt that his back was kicked by something. UU read a book www.uukanshu.com and then his head was kicked.

He was trying to scold who was putting his face on his nose, looked up, and saw that Fina had taken a high jump, and fell lightly directly on the pedal about three meters away, and then took off again each time. They all stepped over several steps of pedals, and they were already more than ten meters high from the ground in the blink of an eye.

Its tail stood up like a saber, swinging left and right in the air to maintain the balance of the body.

The pedal is designed for people wearing rubber-soled military boots. The surface has a pattern to prevent slipping, but the anti-slip effect is not great for cats. The iron plate itself is relatively slippery and narrow in width. It can barely fit on four-legged stands, let alone it. Often it takes a little bit of feet to take off again.

Fina's action was too thrilling. If she stepped into the air, she would be lucky to roll down the **** of the outer wall of the pyramid more than 50 degrees. If unfortunate, she might bump into the cold and hard iron pedals in a fall ...

Even a spectator like him was holding a sweat, trying to remind him to crawl slowly, but he was afraid that a sound would distract him and cause accidents.

He and the other elves raised their heads at an increasing angle. When the neck was sore, Fina stepped on the last pedal, crossed the last distance of nearly two meters, and flew to the position where the hole was.

what!

Fina also seemed to have misjudged the distance, or was out of energy due to continuous high-intensity jumps. She only caught the edge of the hole with two forelimbs, and her two hind legs kicked empty.

"His Majesty!"

The face of the Snow Lion was originally white, so scared that the black turtle pattern on his head was almost white.

Lao Cha rushed to the rescue when his body moved.

However, Fina only stayed for a while, when her physical strength recovered slightly, her waist strength turned over, and disappeared into the vent hole.

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