built

There is a medieval city in Germany built in a meteorite crater. Its walls hide 72,000 tons of diamonds

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If you’ve seen Shingeki no Kyojin (if you haven’t, I’m envious), the comparison with Shiganshina is inevitable: the image on the left of the montage on the cover corresponds to the Nördlingen market square and the one on the right is the city seen from above, completely fortified with a wall that surrounds it. However and although it is fan pilgrimage destination of the series, there is officially no relationship between the two. At first glance, the architecture of Nördlingen makes it just another fairytale Bavarian village, but this German city in the Donau-Ries district (in Swabia) is anything but just another one. In 1215, Emperor Frederick II promoted it to an imperial city of the Holy Roman Empire and a century later they began to build the wall. The municipality is integrated within the crater that left a meteorite when it fell. However, we know this now: until the 1960s, geologists themselves thought that the depression was an inactive volcano. Nördlingen is in a crater. He Nördlinger Ries It is a depression 24 kilometers wide and up to 150 meters caused by the impact of a meteorite approximately one kilometer in diameter in the Miocene, which pierced a primary crater of 11 kilometers. As deepens the International Union of Geological Sciencesthat hole grew due to the uplift of the crater floor and marginal collapse, until it reached what it is now. The Ries asteroid impacted with a speed of at least 70,000 km/h, causing an explosion of heat and energy that lasted approximately 10 minutes: the shock wave traveled through the area, setting everything on fire up to 100 kilometers away, which ended life in that radius. Afterwards, a lake was formed where diverse flora and fauna settled. The findings in the nearby Ofnet caves They confirm that the site of today’s Nördlingen was already inhabited in the late Paleolithic. The wall outlines the diameter of the meteorite. When in 1327 Louis the Bavarian ordered build the wall of Nördlingen, no one knew that he was tracing the exact outline of the meteorite that had hit there 15 million years earlier, as notes NASA. The medieval historic center fits almost perfectly within the kilometer diameter of the primary crater: a geological coincidence that would not be discovered until the 20th century. With a perimeter of 2.7 kilometers, it is one of the three medieval walls of Germany preserved almost intact and the only one that can be visited in its entirety: five gates, twelve towers and two bastions make up this circuit that, seen from the top of the Daniel tower, reveals its perfectly circular shape: the underlying trace of the Miocene catastrophe. And a small detail: it is made with stones that house small diamonds. The wall of Nördlingen. Wolkenkratzer, via Wikimedia Walls made of diamonds. Cities usually have their stone quarry, but Nördlingen had diamonds: the meteorite impact generated an estimated 72,000 tons of them when it hit a local graphite deposit, so its stone buildings contain millions of small diamonds. The stone is not just any one either: it is the sueviteextremely rare and marbled with small greenish crystals. It is found in other locations on the planet where there were similar impacts, but the concentration of gems in Nördlingen is unique. Those who built those buildings did not know that they were working with diamonds: they discovered it after the visit of Eugene Shoemaker and Edward Chaothe two American geologists who in 1960 demonstrated the origin by impact by finding shock quartz in the walls of St. George’s Church. St. George’s Church. Tkx via Wikimedia The “luxurious” church of St. George. Normally jewelry in churches is reserved for the altarpieces, but in San Jorge they are also on the walls. In fact, it was the construction that revealed the use of suevite extracted from the Ries basin. St. George’s is one of the largest late Gothic hall churches in southern Germany and was built between 1427 and 1505, when Nördlingen was Imperial. The church tower is known as “Daniel” and is 90 meters high: after climbing 350 steps you can reach the viewpoint (70 meters away), where you can observe the perfectly circular shape of the city and the crater that surrounds it. The tower also preserves one of the most unusual traditions of modern Europe: a night watchman who has been shouting before midnight since the Middle Ages to warn that everything is fine. Nördlingen, space training ground. Since impact craters also occur on the Moon and Mars, Nördlinger Ries has been used for decades as a training ground to teach astronauts to recognize the rocks and minerals created by impacts. the astronauts from Apollo 14 and NASA’s Apollo 17 studied the geology of the crater in 1970. But It is not something exclusive of the North American space agency: it is one of the three destinations of the program PANGAEA of the European Space Agency, along with the Italian Dolomites and Lanzarote. JAXA has also carried out training there. In Xataka | That Christian Friedrich von Kahlbut died in 1702 is nothing exceptional. That his corpse has not decomposed, yes In Xataka | A treasure hunter looted a shipwreck, did not reveal where he had kept the treasure and spent 10 years in prison. Now you are free to get it back Cover | Tilman2007 and Bayerische Vermessungsverwaltung

In 1967, Canada built futuristic homes like Lego pieces. Half a century later they still don’t know how to repair them

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When Moshe Safdie designed Habitat 67 As an architecture student, he had a revolutionary idea: he used thousands of Lego pieces to test how housing modules could fit together in three dimensions. Decades later, the architect himself I kept remembering who even emptied entire Lego stores in Montreal to build the models. And maybe that was the problem. Reinvent the home like Lego. In the early 1960s, Western cities were trapped between two models that seemed inevitable: huge blocks of impersonal apartments or endless car-dependent suburbs. A young architecture student named Moshe Safdie He believed that there was a third way. His idea was apparently simple and radical at the same time: build prefabricated homes by stacking concrete modules as if they were giant lego piecesso that each family could have light, a terrace, vegetation and the feeling of an individual house within a large urban structure. The project ended up becoming Habitat 67, the great futuristic icon of the Montreal Expo. What Canada presented to the world as the definitive future of cities ended up being one of the most fascinating and problematic works of architecture of the 20th century. Habitat 67 was a utopia. The image of the building continues to look futuristic even today: 354 huge concrete modules prefabricated, each weighing about 90 tons, stacked in irregular shapes on an artificial peninsula facing the St. Lawrence River. Safdie was obsessed with solving a problem he considered central to the urban future: how to maintain density from the city without sacrificing privacy, nature and the feeling of home. His motto was “For everyone a garden”. Each apartment had to have its own garden, cross ventilation, open views and elevated pedestrian streets instead of closed corridors. Inspiration came from both the Pueblo homes of the American Southwest and the japanese metabolism that we talked about a few days ago, an architectural movement that imagined buildings made up of modular cells capable of growing and reorganizing like living organisms. The big problem: making it cheap. The paradox of Habitat 67 is that it was born precisely to make urban housing cheaper… and ended costing a lot more than expected. Safdie imagined that industrial prefabrication would allow apartments to be manufactured in a chain quickly and efficiently, but the reality It was very different. The complex required an extremely sophisticated assembly system, a factory installed within the work itself, gigantic cranes and very complex technical connections between modules. Each box had to leave the factory practically finished, with windows, wiring, bathrooms and kitchens incorporated before being lifted into its final position. The reduction of the original project (from 1,200 planned homes to just 158) shot even more the costs. The experiment designed to democratize the city ended up becoming a too expensive complex even for the middle class it sought to attract. Leaks and mold appear. As time went by, the other great enemy of Habitat 67 appeared: the water. The stepped structure full of terraces, gardens and joints between modules generated a waterproofing nightmare. The concrete began to leak constantly in Montreal’s extreme climate and water ended up penetrating walls and ventilation systems. Some residents reported serious problems moisture and mold for years. The repairs they were never simple because the building does not function like a conventional block: each module is a structural part of an extremely complex three-dimensional framework. Half a century later, restorations are still almost surgical. In the major rehabilitation carried out for the 50th anniversary, it was necessary to remove outer layersre-insulate huge surfaces and redesign entire systems to protect the structure from Canadian winters. From social dream to elite symbol. Another of the most striking ironies of Habitat 67 It is its social evolution. What was born as a manifesto for accessible urban housing ended up becoming one of the directions Montreal’s most exclusive. The original rents were already prohibitive in the 60s and subsequent privatization converted the apartments in luxury properties. Today some units reach millionaire prices and the monthly maintenance costs are very high. The “city for all” ended up being an enclave for cultural elites, businessmen and architecture lovers. Yet even its critics admit that the building accomplished something extraordinary: demonstrating that dense housing could be emotionally distinct from the repetitive blocks that dominated modern urbanism. He never completely died. The most fascinating thing is that, despite all its problems, Habitat 67 continues to exert a gigantic influence on architects and urban planners. decades later keep inspiring modular projects, terraced complexes and new ideas on how to combine urban density and quality of life. Even today’s digital tools have resurrected the original never-built project. In recent years, Safdie Architects and Epic Games they virtually recreated the gigantic “Project Hillside” which the Canadian government cut due to lack of money in the 60s. Thanks to Unreal Engine, drones and hyper-realistic models, the architect was able to tour for the first time the complete version of the modular city that he had imagined as a young man. There is something deeply symbolic in that image: Habitat 67 was so ambitious that not even the technology of its time could do it. fully viable. Maybe that’s why it continues to fascinate today. Because it seems like a relic of the past… but also a vision of an urban future that we still don’t know how to build without collapsing due to leaks, crazy costs and eternal repairs. Image | Parcours riverain – Ville de Montréal, Thomas Ledl, Vassgergely In Xataka | In 1970 Japan built homes of the future where each capsule would be replaceable. Half a century later he discovered that no one knew how to repair them In Xataka | The incredible story of the tallest building on the planet that ended up becoming the largest swimming pool in the Soviet Union

The most advanced ship China has ever built doesn’t know if it’s an aircraft carrier or an assault ship. And that’s exactly what makes it dangerous

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Some time ago we knew the existence of the Type 076a warship very suitable to take the recognition of the most advanced that China has ever built. After completing his training maneuvers, he recently was seen crossing the South China Seaquite turbulent waters from a geopolitical and military point of view. And of course, having a 40,000-ton giant there does not go unnoticed. Your own category. The Sichuan is technically an amphibious assault ship, designed to transport troops, armored vehicles and all types of vessels. But to call it just that would be an understatement. With a full-length flight deck, a double-island superstructure and, above all, an electromagnetic catapult Capable of launching conventional fixed-wing aircraft, this ship also functions as a light aircraft carrier. In this way, you could say that the Type 076 is in a category of its own. It is a category of its own, a hybrid between an assault ship and an aircraft carrier that can operate fighters like the J-35the latest generation Chinese stealth, as well as drones and helicopters. Its length is around 260 meters and can house up to 1,000 navy soldiers. Your catapult. Most of the amphibious ships that exist in the world can carry aircraft, yes, but only those with the ability to take off vertically or over very short distances, such as the American F-35B. The Sichuan does not have this limitation, since its electromagnetic catapult, between 100 and 130 meters in length, is of the same generation as that of the aircraft carrier. Fujian and equivalent to the technology that the United States has developed for its latest superaircraft carriers. This gives it unparalleled versatility for a ship of its type and a much greater operating margin in terms of load, range and armament of its aircraft. Electrified. The Sichuan propulsion system it’s electric. Of course, to power it, two 21 MW gas turbines need to be combined with six 6 MW diesel generators, which gives a total power of about 78 MW. This design is used both to power the propulsion motors and also to manage the energy peaks demanded by the electromagnetic catapult. This type of engine has several advantages over conventional diesel, including faster starting, greater operational flexibility, less vibrations and a smaller underwater acoustic footprint, making it more difficult to detect. Testing in the most tense place in the world. The Chinese Navy confirmed At the end of April, the Sichuan had set sail for the South China Sea to carry out its first tests in waters other than those of its base. Zhang Junshe, military expert, counted to the Global Times that it is “rapid and efficient progress” that brings the Sichuan closer to its official commissioning. The previous tests that we reported on last year were carried out in waters near Shanghai, where they evaluated the stability of the propulsion system and electrical systems. Now, in the South China Sea, it is time for something more demanding: complex climatic and maritime conditions, high humidity and variable waves, an environment that will help them validate flight operations, amphibious maneuvers and test the performance of their combat systems in real conditions. A whole birthday has come together. The Sichuan reached the South China Sea at the same time that the United States, the Philippines, Japan, Australia, Canada, France and New Zealand began the Balikatan maneuvers, a set of military exercises that are carried out annually and involve nearly 19,000 soldiers, according to Admiral Samuel Paparo, head of the US Indo-Pacific Command, before the Senate Armed Services Committee. In addition, the Chinese aircraft carrier Liaoning He also headed towards the same sea those days. And of course, in the face of such deployment, there are many who think that China is carrying out a calculated show of force in waters that it claims for the most part as its own, and where precisely it has open territorial disputes with the Philippines, Vietnam, Malaysia and other countries in the region. What comes next. Once these tests in the South China Sea are completed, the tests should include integrated operations with embarked fighters, helicopters and amphibious forces. When all test cycles are complete, the Sichuan will be ready to enter service with operational combat capability. Junshe counted told the Global Times that the ship’s construction speed is “considered fast” and reflects China’s increasing maturity in building large warships. Cover image | Xinhua In Xataka | China is manufacturing missiles at an unprecedented speed. And the final objective is not Taiwan, it is another island 3,000 km away

In 1970 Japan built homes of the future where each capsule would be replaceable. Half a century later he discovered that no one knew how to repair them

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In 1970, during the Osaka World Expomillions of people lined up to enter pavilions where Japan showed how it imagined the 21st century: domestic video calls, automated cities, assistant robots and modular homes capable of changing over time. That event was so impressive that many visitors came away convinced that the future was going to arrive much sooner than expected. The spaceship that Japan wanted. In 1972, in the heart of Tokyo, a building appears that seemed to have landed from the future. The Nakagin Capsule Tower It was unlike anything of its time: two concrete towers covered by 140 metal capsules with circular windows, like a stack of futuristic washing machines or a block of space modules suspended over Ginza. The architect Kisho Kurokawa He imagined those capsules as replaceable homes that could be removed and replaced every 25 years, just as an organism renews its cells. The idea perfectly summed up the Japanese postwar optimism: mutable cities, living architecture and a future where houses would function more as interchangeable pieces than as permanent buildings. Half a century later, Japan discovered something much more uncomfortable: no one really knew how to repair that vision of the future. Nakagin Capsule Tower The metabolic dream. The Nakagin was born within the Metabolist movementa Japanese architectural movement obsessed with constant change. After the destruction of World War II, architects like Kurokawa wanted break with the western idea of eternal buildings of stone and brick. Japan lived with earthquakes, fires and permanent reconstructions. For them, the city had to behave like a living being capable of growing, adapting and transforming. The capsules were the perfect symbol of that philosophy. Each module It measured just ten square meters and included a bed, folding desk, compact bathroom, Sony television and even a tape player. They were aimed at typical Tokyo office workers who wanted a small urban retreat during the week, avoiding hours of travel to the suburbs. Kurokawa saw those capsules as the beginning of a new way of ultramobile life where people would change their homes just as they change their technology. Interior of one of the capsules The problem: the future cannot be dismantled. The great irony of the Nakagin is that the central element of its design it never worked. The capsules had to be periodically undocked and replaced with more modern versions, allowing the building to survive for centuries. On paper it seemed brilliant, but in practice It was almost impossible. Individual capsules could not be removed without disassembling all those that were on top, the costs were gigantic and the system hid structural problems that worsened over time. The joints began to rust, constant leaks appeared, and asbestos complicated any serious attempt at renovation. As Tokyo continued to move towards the 21st century, that supposed architecture of tomorrow began to look an aged relic from an old science fiction. The capsules that were supposed to be renovated like Lego pieces ended up converted into small corroded boxes where there were hardly any permanent residents left. Entrance to the Tower From futuristic utopia to cult ruin. As the decades passed, Nakagin stopped functioning as a residential experiment and began to transform into something else: a work of worship. Architects, photographers, designers and tourists arrived fascinated by that impossible building that continued to resist in the middle of Ginza like a time capsule from the 70s. Many apartments were used as creative studioswarehouses or simple occasional shelters. The community that formed around the building ended up being almost more important than its original use. Some residents organized guided tours, parties and campaigns to save the tower as the deterioration continued. In fact, Francis Ford Coppola, Keanu Reeves and numerous international artists They visited the complex attracted by that strange mix of decadence and futurism. What had failed as a practical solution survived as a cultural icon. Demolishing a utopian future. In 2022 it finally started the disassembly of the Nakagin Capsule Tower. The images were almost poetic: cranes tearing off the capsules one by one, as if they were dismantling an abandoned space station. Most were destroyed, but a small group of owners and preservationists managed to save 23 modules. Some have been completely restored with their original televisions, telephones and furniture, others have ended up in museums, galleries, hotels or exhibitions spread across Japan, Europe and the United States. Paradoxically, Kurokawa’s idea ended up being fulfilled otherwise: The capsules did end up separating and traveling around the world, although not as part of a living city, but as fossils from a future that never came to exist. The failure that changed architecture. The Nakagin It failed as a building, but triumphed as an idea. It inspired capsule hotels, modular architecture, and much of the contemporary obsession with micro-apartments and flexible spaces. Furthermore, its influence can be traced in high-tech projects later and even in current debates on sustainability and compact housing. What is fascinating is that the building simultaneously demonstrated two opposite things: that futuristic architecture can be decades ahead of its time… and that a vision that is too advanced can also become impossible to maintain in the real world. Japan dreamed of housing where each apartment would be replaceable and adaptable forever, and in the end he discovered that he had built something much stranger: a masterpiece of the future condemned to age before the future itself. Image | David Meenagh, Jordy Meow, Kestrel, Dick Thomas Johnson In Xataka | The incredible story of the tallest building on the planet that ended up becoming the largest swimming pool in the Soviet Union In Xataka | After the Guggenheim fever in Bilbao, Alcorcón wanted to replicate its success with a megaproject in 2004. It ended very badly.

with a bridge built in record time

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Satellite images reviewed by the BBC confirm that the first direct connecting highway between Moscow and Pyongyang will be operational in the coming weeks. That is to say, there will soon be a bridge that connects Russia and North Korea by road, materializing an alliance that is reconfiguring the conflict in Ukraine. What is happening. The Khasan-Tumangang Bridge, which crosses the Tumen River on the border between Russia and North Korea, is nearing completion. The satellite images that share The middle shows the structure already united in its central section, along with new access roads, a border control post, support infrastructure and parking areas. The Russian embassy in Pyongyang confirms that the planned opening date is June 19. First time in history. Until now, the only physical link between both countries was the so-called Friendship Bridge, a Soviet-era railway crossing inaugurated in 1959, and whose use for road vehicles was limited. The new bridge is, therefore, the first road link in history between Russia and North Korea. It measures approximately one kilometer in length, has two lanes and is built on concrete pillars with metal openings. It also runs parallel to the old railway bridge. Numbers. According to share In the middle, the crossing has been designed to support up to 300 vehicles and nearly 3,000 people a day. Its total cost exceeds 9 billion rubles, according to Russian state media, which is equivalent to about $120 million. Construction has been rapid, taking about a year, a pace that analysts consider strikingly fast. “The speed of construction reflects the volume of commercial activity between both parties,” said Victor Cha, of the Center for Strategic and International Studies (CSIS). Where does this project come from? The agreement to build the bridge was reached during Vladimir Putin’s visit to Pyongyang in June 2024, when the Russian president met with Kim Jong Un. At that same meeting, both countries signed a comprehensive strategic partnership treaty that includes a mutual defense clause: if one of the two is attacked, the other is obliged to respond. The bridge, therefore, was born under the protection of that pact and has been built in record time. More than concrete. It is inevitably necessary to analyze its geopolitical context. According to data from South Korea, Pyongyang has sent around 15,000 soldiers to fight alongside Russian forces in Ukraine, in addition to long-range missiles and weapons. Seoul also estimates that some 2,000 North Korean soldiers have died in that conflict, although neither Moscow nor Pyongyang have confirmed these figures. In return, North Korea is believed to have received food, fuel and military technology from Russia. “This is an alliance largely driven by North Korean supply of troops, weapons, ammunition and manpower for Putin’s war in Ukraine,” explained Cha about it. What exactly will it be used for? Once open, the bridge will connect the Russian settlement of Khasan with the North Korean town of Tumangang and link directly to the Russian road network, reducing the distance between Vladivostok and the border town of Rason to 320 kilometers. Of course, Russian and North Korean drivers will be prohibited from driving their vehicles into the territory of the other country. In this way, the exchange of goods would take place at the border post itself, transferring the load from one truck to another. “This bridge will offer a very useful route to transfer military material and ammunition, both to North Korea and Russia,” counted Dr. Edward Howell, an expert on Korea at the University of Oxford, spoke to the media. The other side of the coin. Russian Foreign Ministry has described the opening of the bridge as “a truly historic stage in Russian-Korean relations” whose “significance goes far beyond a purely engineering task.” Moscow presents it as a symbol of cooperation in trade, economy and humanitarian relations. But for Western analysts, the reading is very different: a logistical artery designed to sustain a military alliance that transcends the war in Ukraine. “The construction of the bridge exemplifies how North Korea’s ties with Russia aim to continue beyond any end to the conflict in Ukraine,” pointed out Howell. China. It is not just Russia that is seeking to strengthen its physical connection with North Korea. China resumed last month the first passenger train service with Pyongyang after six years of interruption. North Korea, which for decades has been one of the most isolated corners of the planet, is being progressively integrated into the infrastructure networks of its two great allies. “It is fair to say that this connection, before the war in Ukraine, was one of the most dormant links between North Korea and its two neighbors,” Cha acknowledged. It seems that that lethargy has been left behind. In Xataka | While we were looking at gasoline, the Iran crisis has skyrocketed the price of asphalt. And the roads of half the world are already suffering from it

His parents built the Chinese economic miracle by working 12 hours a day. Their children have decided not to work almost at all

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Working twelve hours a day, six days a week, was common in Chinese companies, especially in the technology sector. It is what is known as day 996 and fortunately, the government banned it in 2021. They did not expect that that same year a new concept called Tang Ping and it means just the opposite: doing the minimum to survive. Lay down on the couch. Its literal translation is ‘lie flat’, but we like the creative translation better. Tang Ping It is a social phenomenon that arises as a rejection of the culture of overwork and endless days that barely leave time to sleep. A person who follows a lifestyle Tang Ping He works the minimum necessary to survive and does not have great ambitions; He doesn’t want to buy a car or a house, he spends little on food and he doesn’t want to get married or have children. The latter has not been any fun in Beijing. National security concern. We have talked about the birth rate crisis that China is going through and how the government is doing literally everything for get young people married and have children, so this movement goes against everything they are promoting. The government’s discourse on this trend has taken on a more severe tone. Last April, They published an official warning in which they stated that it is an “ideological infiltration” financed by “hostile anti-China forces” with the aim of “eroding the minds of Chinese youth.” They have turned a lifestyle into a political act that must be repressed. The safety net. They count in Baiguan News that, to understand the rise of this trend, two social mechanisms must be understood. The first is that the parents of these young people were born in the 60s and 70s, so their professional career grew along with the economic development of the country and they are currently the richest demographic group in the country. This means that if their children have financial problems, they can provide support. The second factor is deflation, which is making everything cheaper. In China it is possible to eat for just 1 or 2 dollars in exchange, which makes it viable to live while spending very little money. If we add that youth unemployment is at 16.9% and job opportunities are shrinking, it is the perfect breeding ground for lying down. The generational contrast. The parents of these young people grew up in poverty and, if they worked 72 hours a week, it was not out of pleasure, but out of pure necessity and fear of continuing to be poor. That fear was the engine of Chinese economic growth and allowed the next generation to grow in the abundance that their parents built. The difference is that these young people do not feel that raising the country depends on them, nor do they feel the fear that drove their parents, and many have decided to put their well-being before their professional career. Image | HANVIN CHEONGUnsplash In Xataka | We have been talking about “day 996” in Chinese companies for years. The reality is more complex: “day 323”

More advanced chip factories are being built in China and Taiwan than anywhere else. It’s only good for them

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According to SEMI, an international organization that looks after the interests of the electronics and integrated circuit industries, only six of the 64 new factories of semiconductors that are going to come into operation in Asia before 2029 will reside in Southeast Asia. The remaining 58 They will be located in China and Taiwan. These two countries have compelling reasons to strengthen its chip industry and develop its integrated circuit production capacity. It is essential for China to set up new plants equipped with cutting-edge photolithography equipment. And that is precisely what SMIC, Hua Hong Semiconductor and other Chinese chipmakers are doing. Currently this nation is limited by the difficulty of going beyond 7 nm without being able to use the extreme ultraviolet lithography (VVE) of ASML. Even so, Huali Microelectronics, the division of Hua Hong Semiconductor specialized in manufacturing chips for third parties, is preparing to start the production of 7nm integrated circuits at its Shanghai plant. Taiwan also needs to expand its semiconductor industry, although its motives are very different from China’s. The two largest Taiwanese integrated circuit manufacturers, TSMC and UMCthey need to develop more cutting-edge plants in order to satisfy the growing needs of their customers. TSMC’s 2 and 3 nm nodes in particular cannot cope, so it is essential for this company to expand its production capacity in the midst of the boom in data centers for data applications. artificial intelligence (AI). SEMI is concerned about the vulnerabilities of the chip industry Ajit Manocha, the executive director of SEMI, assures that “we want to see more centers emerge in related countries. We want more plants to be established to reduce the risk derived from vulnerabilities.” What worries the spokesperson of this organization is that the geopolitical tensions maintained by the US, China and Taiwan end up threatening the integrated circuit factories that reside in these last two countries. TSMC’s in Taiwan are especially sensitive to a possible conflict with China due to the undoubted strategic importance that they have not only for Taiwan, but also for the US and its allies. Malaysia, Singapore, Vietnam and Thailand are candidates to host new cutting-edge chip plants Malaysia, Singapore, Vietnam and Thailand are strong candidates to host new cutting-edge chip manufacturing plants. In fact, Several centers already reside in Malaysia Intel’s advanced packaging and verification software. However, Manocha You are also concerned about other types of vulnerabilities. The most critical of all is the shortage of critical minerals, as well as bromine and helium, two fundamental gases in chip manufacturing processes. What is happening with helium in particular is very worrying. This gas is a byproduct of natural gas processing, and its price skyrocketed in March shortly after the war that the US, Israel and Iran have been fighting since then began because Qatar was forced to stop production of liquefied natural gas. In the current unstable scenario, SEMI argues that Southeast Asian countries should aim to build more semiconductor manufacturing plants over the next decade to help the sector diversify and reduce supply risks. Image | TSMC More information | Reuters In Xataka | The US’s problem in the AI ​​and humanoid race is not China: it is all of Asia and it is greatly disadvantaged

someone has built a map with more than 7,000 letters

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At its peak, the Roman Empire It covered three continents: from Great Britain to the Carpathians in Europe, North Africa and Asia Minor, an immense terrain under the umbrella of the same civilization. The Romans They had more roads than we thoughtbut to govern, negotiate and maintain power at a distance they used cards. Precisely these epistles have served to document how that civilization faded away, but also how they lived and thought. The problem is that these letters were scattered, in Latin and in academic editions, which in practice distances them from most mortals. So a dev has thought of changing it with a website that collects more than 7,000 letters from the late Roman world: Roman Letters. What is Roman Letters. It is a website that brings together 7,049 letters from 100 to 800 AD and constitutes the largest corpus of late Roman correspondence in English, with 54 collections of epistles by individual authors. In reality, the project tells a story in eight chapters, from the fervent connection of the 11th-century Empire to the silence that falls on the West after the year 600. And it does so precisely with those letters translated and accompanied by a map of the correspondence, a graph of networks between characters, an academic thesis and the source code on GitHub. The good thing is that the same can be used for academic research, to analyze networks or specific periods, since the project is registered in the CERN academic repository and can be cited, but also as complementary material in teaching or mere curiosity. Letter 1001, from Pliny the Younger to Septitius Who has done it. The project is carried out by Craig Vander Galiena software developer who was inspired by Patrick Wyman’s doctoral research on the fall of Rome to develop it. The dev signs both the data corpus and the academic thesis that supports it. There is no university behind it or institutional funding, but rather it is an individual work. The result is impressive, but the effort is even more so: it has 3,123 translations into English made for the first time, which means bringing some of this material closer to the Anglo-Saxon world. Why is it important. Because the decline of Rome can be seen graphically: in the period of greatest correspondence activity (the years 350 and 390) 2,112 letters survive per generation. In the year 600, that number drops to 182. When the roads deteriorate, the postal system disappears and literacy is concentrated in the monasteries, then it is the end of letters. This project demonstrates it with testimonies, maps and graphs. On the other hand, it shows that historians such as Peter Brown They are right: the Eastern Roman Empire did not collapse in the 5th century, since thousands of letters continued to be sent. It came to an end two centuries later, with the Arab conquests. Roman roads and communication flows. Roman Letters How to use it. If you enter out of curiosity, the easiest thing is to access the main page, scroll down and let the eight chapters tell the story from ‘The connected world’ to ‘After the letters stopped’. Each letter takes you to the author’s collection, where you can see the complete available letters and their context. If you prefer something more visual, you can use the ‘Maps’ sections to view the cartographies with Roman roads and the flow of superimposed charts, being able to filter or move the timeline. For more advanced use, the network graph in ‘Network’ shows who was writing to whom and who were the central nodes of the system. And a recommendation to contextualize everything better: take a look at Vander Galien’s methodological thesis. The fall of Rome, in letters The decline of the Empire, in letters. Among the very interesting topics in which the correspondence is classified, there are some such as plagues and famine or women, but there is a common event that marks a before and after in the perception of the Romans about their destiny: the sacking of Rome in 410. An example: Epistle 127 of Jerome of Strydon. One of the voices that best captures the end of the West is Sidonius ApolinarGallo-Roman aristocrat and bishop of Auvergne who, with more than 100 letters, constitutes a first-hand source for knowing the history of the 5th century in Gaul. Yes, but. It is worth remembering that despite the effort and size of the project, this corpus only includes what has survived and what remains is a biased sample: a good part are from ecclesiastical figures or from the high aristocracy, so there is a lack of voices that are not from the upper class (whether they knew how to write or not) to better understand what their society was like. The decrease in the number of letters shows the collapse of the elite’s communication networks, which can be extrapolated to the entire society. On the other hand, those unpublished translations are valuable, but the peer review process is missing. Not that they are incorrect, but they should be taken with caution like any other unreviewed source. In Xataka | Someone has created the definitive interactive map of the roads of the Roman Empire: there are more than we thought In Xataka | The death of one empire is the birth of another: the graph that reviews the history of civilizations from 4,000 years ago Cover | János Szüdi and Cover | Valentin de Boulogne and Tataryn

the history of the Torres Colón, the Madrid skyscraper built upside down

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Around here we love megastructures (and who doesn’t), but there are also curious stories in buildings that do not hold records of any kind and that even seem everyday to us. An example are the Columbus Towersin Madrid (Spain), whose architecture and construction posed certain challenges at the time and which almost made the saying “start the house with the roof” literal. There are 23 floors above and six underground, and its construction was possible thanks to the suspended architecture attributed to its architect Antonio Lamela (died in 2017). Or what is the same, the floors hang from each other, so that the upper floors do not rest on the lower ones. Not one tower, but two, and built from top to bottom This popular saying was already stated by Antonio Lamela, its architect, who maintained that towers could only exist if they were built from top to bottom. The reason: the irregular 1,710 square meter plot on which they were going to settle was too small and the municipal ordinance required many parking spaces, as explained in The Country. For this reason, the foundations would have to occupy a small space, hence Lamela began the construction in the opposite direction, something that in the end would cement (pun intended) an architectural work with a unique building in the entire world. and the decision to do two towers and not a single building as the City Council proposed, it was due to the fact that the architect and his staff confirmed that building a single tower would have deteriorated the urban image “due to the implementation of an element of enormous proportions.” Building them there was by no means a coincidence. The site was in the heart of the city and the City Council established that “the building must be an architectural unit of marked verticality”, as explained on the Estudio Lamela website, and there were numerous changes of criteria regarding a project (as we will see later) that had to adapt to a predictable urban framework, but that could never become a reality because of this. Image: Estudio Lamela And why build them? from the top to the base? As the study itself explains, they found a problem that could not be solved with the usual systems: the adaptation of the needs of the building (residential and with commercial spaces on the ground floor) was incompatible with traditional means, in addition to the irregularity of the site. Hence the idea of ​​”hanging” the towers, so that a double structure could be proposed with the two parts independent and in the end there would be a set of three almost independent buildings: the two towers and the one that acts as a base. Thus, the method consisted of raising a narrow pillar in the center (the core), on which to place the hanging platform (that is, the large concrete head). From there the floors were built downwards, the weight of which falls partly on the central pillar and the rest on the side braces. The pressure of the platform was in turn transmitted by these lateral braces, thanks to the tension of steel cables, thus compressing the soles against the head. “It’s like the building was turned upside down.” Antonio Lamela, architect. A project that was changing in its development The design of the Colón Towers, 116 meters high, was planned from the beginning, differentiating itself from what was usually done in “hanging” buildings, starting from steel structural heads. What was done is a design completely in reinforced concrete, using high-resistance post-tensioned concrete and making the slabs of the typical floors rest on their perimeter on the external tie rods, thus not being in tension but compressed against the post-tensioned concrete structure as we have explained before. In this way, the upper structure (in which the installation machinery would be located) receives the load from the 21 suspended slabs, transmitting it to the core, through which it descends to the ground foundation. For the façade, in principle folded sheet metal was used. anodized aluminum bronze color, although as we will see later this was not what was left in the end. They also count in The Country that this green crown art deco so particular, that it has been popularly known as “the plug”, that the reverse construction of this building baffled those who were watching the progress for years. The Colón Towers began to be built in 1967, but in 1970 the Madrid City Council stopped the works due to “political interests”, according to the architect in numerous interviews. With this (and the lawsuits), the City Council’s compensation allowed the initial use for luxury residences that had been planned to change to house offices, restarting the works and finishing them in 1976. A spectacular ending, but it was not the desired one either. The Colón Towers were considered the “building with the most advanced technology in building construction until 1975” made of prestressed concrete at the World Congress of Architecture and Public Works. It was a pioneering work in its construction, although there were already suspended structures (especially bridges) and over time we have seen more examples of both suspended architecture like this way of building them, like the corporate building of the Nykredit bank by Schmidt Hammer, the Media Tic building by Enrique Ruiz Geli or Hovenring, a suspended platform by ipv Delft that we saw talking about When buildings adapt to bicycles (and not the other way around). The project began being called Torres de Jerez, although it was named after Columbus as its construction took hold and was promoted, in the early seventies and by the construction company Osinalde. After deciding that they would be offices and once built, they were acquired by the family Ruiz Mateosbeing later expropriated to finally be bought by the British group Heron International. The construction company decided to change the aesthetics with a glazed exterior skin to avoid revocation, so that there was a double layer that increased … Read more

China says it has built its largest data center. And confirms that your problem is precisely in the chips

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China has just turned on its new technological pride in Shenzhen: an AI cluster with 14,000 petaflops built entirely with Huawei Ascend 910C chips. the city has presented it as the first scale computing center with 10,000 cards with completely national technology. It is an undeniable milestone, but if we give it context, an alarm signal and a dose of reality. Why is it important. The Shenzhen cluster, with all its rhetoric of technological sovereignty, represents about 1% of the capacity of the largest US data center in operation today. In other words: China has built, with great institutional effort, what OpenAI already had available to train GPT-4 in 2022. The gap is not a question of ambition (China has it) or capital (it also has it) or energy (of course, he also has it). It’s a chip issue. What are they capable of manufacturing and in what volume today. Between the lines. The Shenzhen government statement highlights energy efficiency metrics and occupancy rates of 92%. It’s really good data. But the selection of indicators (the cherry picking) says a lot so it is omitted: there are no direct comparisons with the clusters of NVIDIA H100 that colonize the data centers of Microsoft, Google or Amazon. Posting only what you have is also a way of not publishing what you lack. The context. At this point no one doubts that China does not lack electricity, not even engineersnor money to build large-scale AI infrastructure. What is still missing, despite the advances, are the chips. Export restrictions imposed by Trump They have cut off access to advanced semiconductors from NVIDIA and TSMCand that has forced China to accelerate its own ecosystem. Huawei has responded with the Ascend 910Ca capable chip but that still has performance limitations and, above all, volume production. If wafers were not in short supply, this data center would be a hundred times larger. Yes, but. Can China close that four-year gap before it gets even bigger? The answer depends almost entirely on how much its domestic semiconductor industry manages to scale, and whether or not Western sanctions manage to stifle that process. At the moment, in Shenzhen they are celebrating an achievement as undeniable as it turns out that in the eyes of Silicon Valley they are still in 2022. Featured image | Huawei In Xataka | Memory prices have started to fall in some markets. There is still a long way to go to close the AI ​​crisis

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