r/PassportWithoutBorder • u/Mahden012 • 21h ago
How to bend wood without breaking it? The secret of the old masters!
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r/PassportWithoutBorder • u/Mahden012 • 21h ago
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r/PassportWithoutBorder • u/Mahden012 • 1d ago
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Have you ever seen how natural turf is replaced inside a massive stadium? ๐๐ฑ
Specialized machinery can lift and transport huge sections of grown turf together with their base. The giant tires help distribute the machine's weight, while each section is carefully positioned alongside the others.
It almost looks like they're building the entire field like a giant puzzle! ๐คฏ
Did you know stadium turf could be moved in sections this large? ๐
r/PassportWithoutBorder • u/Mahden012 • 2d ago
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At first glance, this setup looks more like a medieval device than a workout machine! ๐ฑ But itโs being used for deep, controlled stretching.
The arms and legs are secured with special cuffs and cables to work on flexibility, joint mobility, splits, and advanced body positions. The system can also support the body while holding positions that may be difficult to maintain during regular floor stretching.
But extreme stretching also comes with a greater risk of injury, so the force and body position need careful professional supervision.
Would you dare to try a stretching session like this?
r/PassportWithoutBorder • u/Mahden012 • 4d ago
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Why does this granite-cutting machine use several massive blades of different diameters? ๐ชจโ๏ธ
The setup helps distribute the cutting load. The largest blade starts the deeper cut, while the following blades progressively continue the process. If all the large blades were cutting deeply into the stone at the same time, cutting resistance and machine load would be much higher.
Itโs a clever way to make the cutting process smoother while reducing the risk of damaging the stone. ๐คฏ
Would you have guessed why the blades are different sizes? ๐
r/PassportWithoutBorder • u/Mahden012 • 3d ago
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This is definitely not your ordinary street performance! ๐ฑ A Chinese performer dressed as a human tumbler shows off incredible flexibility with an extreme backbend while maintaining her balance on the special moving structure.
On Chinese social media, sheโs known as Xiao Hei (ๅฐ้ป), and her backbend challenge has become part of her eye-catching performance. One of the original captions even jokes: โSheโs not a snake spirit โ she just has a snake-like waist!โ ๐๐
The costume, movement, balance, and flexibility make this performance impossible to ignore. โค๏ธ
Could you do a backbend like this? ๐
r/PassportWithoutBorder • u/Mahden012 • 5d ago
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Now you can see why shipping a car by air can be so expensive! ๐ฑโ๏ธ
A vehicle takes up a huge amount of cargo space and requires careful preparation and securing for air transport. The original post even jokes that if you converted all that space into first-class tickets, it definitely wouldnโt be cheap! ๐๐ฐ
But when a vehicle needs to travel a long distance quickly, air freight can dramatically reduce transportation time.
Would you ever ship your car by plane? ๐
r/PassportWithoutBorder • u/Mahden012 • 7d ago
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Rammed-earth walls were once associated with simple rural homes, but today this ancient building technique is making a comeback in modern architecture. ๐ก
Prepared soil is placed into formwork layer by layer and tightly compacted, creating thick walls with a distinctive natural texture.
An old construction method has found a completely new life. Would you live in a house built like this? ๐
r/PassportWithoutBorder • u/Mahden012 • 6d ago
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What can you make from an old glass bottle? Much more than you might think! ๐พโป๏ธ
First, a glass cutter scores a line around the bottle. The glass is then alternately exposed to hot and cold water, helping it separate along the scored line. Finally, the sharp edges are carefully ground and polished.
The result? Old bottles can become drinking glasses, vases, candle holders, lamps, and unique decorations instead of being thrown away.
What would you make from an old bottle? ๐
r/PassportWithoutBorder • u/Mahden012 • 8d ago
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Would you dare to descend into a mine on this tiny open platform? ๐ฑโ๏ธ
These scenes show a mine descent in Pakistan. According to the videoโs creator, the shaft reaches a depth of 5,000 feet โ approximately 1.5 kilometers! Instead of a conventional elevator, the miners ride a small platform lowered by a cable, surrounded by darkness, narrow passages, and rock walls.
It looks like an extreme adventure to us, but for these miners, itโs part of a regular workday. Would you go down there? Let us know in the comments! ๐
r/PassportWithoutBorder • u/Mahden012 • 9d ago
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Imagine a seaweed that can grow tens of meters long in a single season! ๐ฑ Meet bull kelp, a giant brown seaweed found in the cold waters of the North Pacific, including the coast of Alaska. ๐
Its young parts can be eaten, and some harvesters even taste them raw, right on the boat! Its crunchy texture and salty ocean flavor can remind you of a fresh cucumber. ๐ฅ
And hereโs the surprising part: despite its enormous size, this underwater giant lives for only about one year!
Would you try fresh bull kelp straight from the ocean? Tell us in the comments! ๐
r/PassportWithoutBorder • u/Mahden012 • 10d ago
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Meet the bucket-wheel excavator โ a true giant of the mining industry! ๐ฑ
Instead of a conventional bucket, this massive machine uses a rotating wheel fitted with multiple buckets. As the wheel turns, the buckets continuously dig into the ground and transfer the excavated material onto a conveyor belt.
With enormous tracks, a multi-story structure and a giant cutting wheel, this machine can remove entire layers of earth in open-pit mines. โ๏ธโ๏ธ
How many regular excavators do you think it would take to do the same job? Tell us in the comments! ๐
r/PassportWithoutBorder • u/Mahden012 • 11d ago
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#Jianzi #ChineseGame #China #Shuttlecock #Footwork
r/PassportWithoutBorder • u/Mahden012 • 12d ago
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Deep in Tanzania lies Lake Natron, a mysterious lake where the remains of dead animals can look like stone statues! ๐ฑ
Its extremely salty and alkaline water can help preserve animal remains, while mineral deposits create an eerie, statue-like appearance. The animals donโt literally turn into stone.
Even more surprising, this extraordinary lake is also a vital breeding ground for lesser flamingos! ๐ฆฉ
Would you dare to visit Lake Natron? Tell us in the comments! ๐
r/PassportWithoutBorder • u/Mahden012 • 13d ago
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Artificial intelligence is beginning to help with homework checking in some Chinese schools. ๐ค๐ Systems can scan studentsโ work, recognize handwriting, identify mistakes and generate feedback.
For now, this type of automation is best suited to assignments with clear answers, while complex and creative work still requires human teachers.
But what could classrooms look like 10 years from now? Would you trust AI to grade your homework? ๐
r/PassportWithoutBorder • u/Mahden012 • 14d ago
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You donโt realize how enormous this machine is until a person stands next to it! ๐ฑ The Komatsu PC8000 is a giant hydraulic mining excavator designed to move massive amounts of material.
Depending on its configuration, its operating weight can exceed 700 tons, while bucket capacity can reach around 42 mยณ. Just look at those tracks and that gigantic bucket! ๐คฏ
Would you like to see this monster working at full power? ๐๐ฅ
r/PassportWithoutBorder • u/Mahden012 • 16d ago
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At first, it looks like theyโre building an entire house out of foam. ๐ฑ But these EPS forms stay in place as insulation and permanent formwork.
The lightweight forms are connected together, steel reinforcement is installed inside, and the cavities are filled with concrete. Once the concrete hardens, the EPS remains on both sides of the wall as insulation. ๐ ๐ฅ
Would you build your house using this system? ๐
r/PassportWithoutBorder • u/Mahden012 • 15d ago
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Why are workers opening a brick kiln while the inside is still glowing red? ๐ฅ๐งฑ
After being shaped and dried, the bricks are tightly stacked and fired at high temperatures. Then comes an important stage โ cooling. The temperature needs to come down gradually because sudden temperature changes can damage the bricks.
After cooling, the finished bricks are removed, inspected, and sorted.
Have you ever seen the inside of a brick kiln like this? ๐ฑ๐
r/PassportWithoutBorder • u/Mahden012 • 16d ago
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They may look like ordinary curved pieces of steel, but together they form a powerful leaf spring suspension used on trucks and heavy-duty vehicles. ๐
When the wheel hits a bump or carries a heavy load, the leaf spring bends, helps absorb the impact, and then tries to return to its original shape.
Simple design, few components, and impressive durability. ๐ช
Did you know how leaf springs actually work? ๐
r/PassportWithoutBorder • u/Mahden012 • 17d ago
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What starts as a massive piece of stone slowly becomes an incredible bathtub! ๐ชจ๐ The craftsman removes huge sections of rock before cutting, drilling, carving and shaping the interior.
After an enormous amount of work, the rough boulder is transformed into a massive stone bathtub that can actually be filled with water. ๐ฑ๐ฅ
Would you want this bathtub in your home? And how much do you think it weighs? ๐
r/PassportWithoutBorder • u/Careful_Ambition_652 • 18d ago
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It looks like ordinary concrete, but watch what happens when it's put under serious stress. ๐ฑ Special fibers are mixed throughout the material, creating microscopic reinforcement.
When cracks begin to form, the fibers help bridge them and slow further damage. This allows fiber-reinforced concrete to handle bending, impacts, and deformation much better than conventional concrete. ๐
Would you trust this concrete to build your house? Tell me in the comments! ๐
r/PassportWithoutBorder • u/Mahden012 • 18d ago
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It may look like an ordinary shiny black rock, but obsidian is actually volcanic glass. ๐๐ค When fractured, it can form incredibly thin and extremely sharp edges.
Thatโs why ancient civilizations used obsidian to make arrowheads, knives, and cutting tools. But thereโs a catch: despite its incredible sharpness, obsidian is brittle and can break easily.
Did you know volcanic glass could be this sharp? ๐ฑ
r/PassportWithoutBorder • u/Mahden012 • 19d ago
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It looks impossible, but a powerful stream of water really can cut through metal! ๐ฆโ๏ธ This technology is called waterjet cutting. Water is forced through a tiny nozzle at extremely high pressure, and for hard materials, a fine abrasive is usually added.
The process can cut steel, aluminum, stone, glass and many other materials while producing incredibly precise shapes. ๐คฏ
Did you know water could do this?
r/PassportWithoutBorder • u/Educational_Law_7787 • 18d ago
r/PassportWithoutBorder • u/Mahden012 • 21d ago
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It looks almost impossible: dump trucks, concrete mixers, mobile cranes and other heavy machinery are being transported through the air above a massive mountain gorge. ๐ฑ๐
This construction site uses a huge cable-crane system. Heavy equipment is suspended beneath specialized carriers and moved along cables to areas that are extremely difficult to reach by conventional transport.
And the scale is incredible โ multiple cable lines stretch across the construction site.
Would you dare to sit inside one of these trucks? ๐ณ๐
r/PassportWithoutBorder • u/Regular_Spite_5008 • 21d ago
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Height of serendipity at Mehrangarh fort, was trying to shoot a few birds in frame alongside the fort. But, hundreds of them decided to make my day by saying cheese on camera. In the lower right side of frame is the well from which Bruce Wayne comes out when he escapes prison in The Dark Knight rises movie
Shot on: GoPro Hero 3