secret

The secret weapon to cool cities is exactly the one that Spain uses the least: trees

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Madrid is not only one of the five cities with the most trees and green areas in Europe according to the European Environment Agency, but the FAO has been doing it for six years recognizing it as “Tree City of the World”. And yet, it is at the bottom of the continent in ‘useful cup’ (with only 9.4%). It has many trees, but they are useless. And that, far from being a Madrid curiosity, is the best possible summary of the great Spanish problem with urban trees. What happens to the trees? The short explanation is that they are the cheapest cooling tool available. It’s not a secret. However, the lesson we need to learn is not a crude “we need more trees.” That is what explains the ‘contradiction’ of Madrid. We need more trees, yes. But we need trees of the right species, covering the right layers, planted where they are needed and provide more, and well watered. That is, we need a comprehensive plan that stops seeing trees as inconveniences and begins to see them as opportunities. How do we know all this? The work of Mohammad A. Rahman, Senior Lecturer in Urban Horticulture at the University of Melbourne It is very useful to study how they really work the trees. The results are contradictory, but very interesting. According to their work, for example, the trees in Melbourne (a city with a temperate climate) reduce the radiant heat absorbed by pedestrians by up to 18 degrees compared to an open street with the same characteristics. In the cold climate of Munich, layered vegetation (the combination of trees, shrubs and ground cover) reduces heat stress in summer by up to 8 degrees. In Hong Kong, on the other hand, where the climate is subtropical and humid, dense vegetation increases the humidity of the environment and limits cooling. That is why researchers are beginning to agree that, even maximizing the use of trees, it is difficult for trees cut more than 20% of future urban warming. But be careful, 20% is a lot. Above all, because Spain has a lot to do. According to ISGlobalthe Spanish cities are at the bottom in canopy coverage on urban land: 5.5% in Seville, 8.4% in Barcelona or 9.4% in Madrid compared to 33.3% in Berlin or 23.3% in Frankfurt. To give us an idea, the average of the 93 cities was 11% and only Athens (with 3%) was below Seville. We need to take this seriously. Historically, Spain has bad care of its urban trees. And that “evil” can be summarized in very few words (“few resources, bad management and political decisions isolated from any current technical knowledge”), but it has a very difficult solution. Fundamentally because all this evidence translates into “planting more trees is cheap and saves lives”; but its implementation systematically fails. Image | Ch Photography In Xataka | In Spain, cutting down urban trees seems like a national sport. These Swiss have just proven it wrong

Europe’s secret weapon to win the electric battery war is not in the mines: it is in the garbage

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The race for European energy sovereignty is being fought far from the large open pit mines. The new battlefield is located in a much more unexpected place: the garbage heap. The companies Vianode and Cylib they have forged an alliance to convert old batteries from scrapyards into high-performance components for new vehicles, the continent’s latest attempt to achieve supply chain independence. However, this scientific advance collides head-on with a real political earthquake. As anticipated at the time Reutersthe European Commission is evaluating whether to reverse or delay its star measure for five or more years: the ban on selling combustion cars from 2035. While technology shows that stopping dependence on foreign powers is possible, economic fear makes Brussels hesitate. The “unsung hero” at the bottom of the landfill. To understand the magnitude of the project, you have to look at a specific material. How do you define it? Aqua Metals, This is the “unsung hero” of lithium-ion batteries: graphite. This material is essential to create the anode (the negative pole of the battery) that allows energy to be stored and released efficiently. Although it is light compared to metals such as cobalt, graphite represents between 10% and 20% of the total weight of a cell. The underlying problem is geopolitical. Global demand for this mineral has skyrocketed, but Europe depends almost entirely on imports of virgin material controlled by external markets. The situation became critical when China, the world’s largest producer, announced severe restrictions for export. The answer to this vulnerability lies in what the industry knows as “black mass,” the dark dust that results from crushing discarded batteries. In this mixture, graphite can account for up to 50% of the content. Recycling has ceased to be a simple green initiative and has become a matter of industrial survival. Urban water-based mining. How exactly is that scrap metal transformed into cutting-edge components? The German company Cylib has developed its own technology based on water, named OLiC. This system is capable of recovering 90% of critical metals (lithium, graphite, nickel, cobalt and manganese) from spent batteries, reducing carbon emissions by 80% compared to traditional mining extraction. This development is not an improvised promise. By mid-2025, Cylib has already marked a milestone together with the Syensqo firm by producing high purity lithium hydroxide directly from this black mass using a proprietary selective solvent (CYANEX 936P). This achievement allowed different battery chemistries to be processed in a single operational line, preparing to more than comply with EU regulation, which will require recovering 80% of lithium by 2031. With the new alliance signed, the graphite recovered by Cylib will be delivered to the Norwegian firm Vianode, which will integrate it into the formulation of its advanced synthetic anodes. Its goal for 2030 is radical: emitting just 1.0 kg of CO2 for every kilo of graphite produced. As Dr. Lilian Schwich, co-founder of Cylib, summarized: “Circular does not mean making concessions. It means a competitive advantage for Europe.” The fracture of the industry in the mirror of 2035. Although recyclers demonstrate that material autonomy is technically viable, pressure from traditional manufacturers has fractured the automotive sector. Giants like Volkswagen or Stellantis They argue that the current goals They are not viable because consumers are reluctant to pay the extra cost of the electric vehicle and the charging infrastructure remains poor. Ford CEO Jim Farley himself publicly admitted that EU demands “are not a sustainable reality in Europe today,” pushing to save combustion engines through the use of synthetic biofuels. But this position is not unanimous. Purely electrical firms see this possible political delay as a strategic error that will give the market to China. Michael Lohscheller, CEO of the electric brand Polestar, was blunt in the face of regulatory uncertainty: “The technology is ready, the charging infrastructure is ready and consumers are ready. So what are we waiting for?” The great European paradox. Europe holds the key to its energy future in its own scrapyards. This year’s pilot plants and commercial agreements demonstrate that the circular ecosystem is a mature reality. The great paradox that remains in the air is evident: What will be the point of building the most advanced battery recycling technology on the planet if, out of fear of competition from foreign markets, Brussels decides to artificially extend the life of the exhaust pipe? European automotive independence may have been born in the trash, but it risks dying in the offices. Image | Pexels Xataka | Keeping combustion engines alive in 2035 leaves us with clear winners. Some called BMW, Porsche and Ferrari

Brazil’s secret to becoming the first nation in Latin America with its own supersonic fighter is a number: 40

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In 1909, Canada celebrated the first powered flight of the history of the British Empire. The curious thing is that that plane, the silver dartwas considered Canadian, but had been designed by an international team, built largely in the United States, and then assembled in Nova Scotia. More than a century later, the aeronautical industry continues to operate in a very similar way. The “Brazilian” fighter. When Brazil presented the first Gripen assembled in Latin Americathe focus was on the historic milestone of becoming the first country in the region capable of assembling a modern supersonic fighter. However, the really interesting news appears when you look at what is behind that achievement. The secret is not that Brazil has created its own aircraft from scratch comparable to the large European or American programs, but in something much more complex and valuable: its capacity to progressively integrate in an international industrial chain and absorb technology until increasing national participation in the program is achieved. In other words, the real leap is not in building the entire plane, but in learning to build a significant part of it. The myth of the national fighter. Modern fighter jets are probably some of the most globalized industrial products on the planet. Although the Gripen It is presented as a Swedish plane, the reality is much more complex. The radar Raven ES-05 It is manufactured in the United Kingdom, F414 engine It comes from the United States, numerous electronic components arrive from different countries and part of the intellectual property belongs to foreign companies. In fact, different studies put the British and American share at such high percentages that, depending on how the calculations are made, Sweden alone represents only a part of the set. The Gripen is Swedish in terms of industrial leadership and design, but its manufacturing is deeply multinational. The magic number: 40. Within this international framework appears the data that explains the Brazilian strategy. Sources linked to the program indicate that the objective is for Brazilian national content to reach approximately 40% in the final deliveries of aircraft destined for the Brazilian Air Force. The figure should be interpreted with caution because there is no universal methodology to calculate these percentages and the analysts themselves warn which cannot be directly compared with the industrial quotas claimed by the United Kingdom or the United States. Even so, the data reflects something fundamental: Brazil has not limited itself to receiving aircraft assembled from Sweden. Its objective has been progressively increase the participation of Brazilian companies, engineers and technicians in the production process until the country becomes a relevant actor within the program. Embraer and the transfer of knowledge. The centerpiece of this strategy is Embraer. Thanks to agreement signed with SaabBrazilian engineers participated for years in development activities in Sweden and gained experience in areas that go far beyond simple assembly. The program includes systems integration, structure manufacturing, software development and knowledge related to the production of advanced fighters. The result is that the Gavião Peixoto facilities do not function as a mere assembly line where imported parts are assembled, but as a center where transferring industrial experience that did not exist before in Latin America. The strategic value of assembly. At first glance it might seem that assembling an aircraft designed by another country has limited value. However, the history of the aviation industry demonstrates exactly opposite. The ability to integrate complex systems, manage logistics chains, certify components and maintain advanced aircraft constitutes one of the most difficult steps to overcome. Brazil had already shown relevant capabilities with programs like Super Tucano or the KC-390but the Gripen introduces the country to a much more sophisticated technological ecosystem. Each assembled aircraft provides experience that can later be applied to future national or international developments. The Swedish fighter that is not entirely Swedish either. The paradox is that Gripen itself helps understand Brazil’s position. The plane is often presented as a Swedish national product, but the reality is that it depends from an extensive network international suppliers and technologies. The United Kingdom provides fundamental systems, the United States supplies the engine and numerous critical components, while other countries participate in different subsystems. There are even export restrictions stemming from British and American technologies integrated into the aircraft. In a way, Brazil is following the same model that the main aviation powers already use: no one makes just one modern fighter. More important than buying airplanes. The decision made by Brazil in 2014 during the FX-2 contest It is not explained solely by the Gripen’s capabilities compared to its rivals. The main attraction was Saab’s willingness to share technology and allow much deeper industrial participation than that offered by other proposals. That choice is beginning to yield visible results more than a decade later. Therefore, the first assembled Gripen on Brazilian soil symbolizes something more important than the arrival of a new fighter plane: it represents Brazil’s entry into the small group of countries capable of actively participating in the production of advanced supersonic fighters. And although much of the aircraft continues to arrive from Sweden and other international suppliers, the real story is in that 40%because that is where the knowledge that Brazil had been trying to acquire for years is found. Image | Embraer In Xataka | We tend to assume that the Wright brothers invented the airplane in the United States. In Brazil they believe they have evidence to the contrary In Xataka | A Brazilian has shown that having Internet in mid-flight is possible with Starlink. It has also shown that it is a real danger

A scientist wants to build a space shield against solar storms. Your secret weapon: lithium and barium

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Predict the arrival of very strong solar storms It is important for many reasons. Not only to keep an eye out and not get lost the most beautiful auroras. Also because these could affect satellites or terrestrial communications systems, so it is important to take precautions. The problem is that, no matter how much prevention methods have improved, we cannot do much more than be prepared for what is coming. Today there are no ways to stop these solar storms. However, a scientist from Boston University has announced that it is working on a method to strengthen the Earth’s natural shield against this type of phenomena. A stronger shield. The scientist in question is called Brian Walsh and is working in what he himself has called a wall against solar storms. Its objective is to send six ships to strategic points in a geostationary orbit, so that they release chemical elements capable of strengthening the magnetic field. These should be elements such as lithium or barium, since they are easily converted into positively charged ions when solar ultraviolet radiation hits them. At that point, the cargo released by the ships is converted to plasma. Precisely, what reaches Earth with solar storms is also plasma. However, there is a big difference. The one that comes from the sun consists of charged particles that move at very high speed, with great energy. On the other hand, what would be released into the magnetosphere would be cold, static plasma, which acts as a kind of wall, preventing this high-speed plasma from passing through the magnetosphere. A good shield when the activity is not too intense. The Earth has a great shield against solar storms. Generally, our magnetic field prevents these charged particles from the Sun from crossing into our atmosphere. This is because the magnetic field generally acts as a kind of rail on which the plasma circulates. The electrically charged particles are retained on these rails, but do not cross to the other side. They can only reach the atmosphere at the poles, where the inclination of the magnetic field lines acts as a kind of funnel. Even so, the charged particles that come from the surface of the Sun may already arrive somewhat weakened there. They interact with the gases in the atmosphere, exciting the atoms and causing the release of the light that makes up the auroras. But there are usually not very detrimental effects on communications. On the other hand, if the solar storm is very intense, the particles may be able to deform the rails of the magnetic field, filtering at the poles, but also in other places in the magnetosphere. Historical consequences. The consequences of these types of events have been seen numerous times throughout history. The most dramatic case was possibly that of Carrington eventwhich took place in 1859. It is considered the most powerful solar storm that has been recorded in history with consequences on Earth. Because of this large release of plasma from the Sun, auroras were seen in places as far from the poles as Hawaii and Cuba, but there were also less noticeable consequences, such as the burning of telegraph lines in many parts of the world. Another very notorious and dangerous case took place during the Vietnam War, in 1972, when a solar storm caused the accidental detonation of several magnetic underwater mines. And much more recent is the Gannon Storm, which in 2024 affected the GPS systems of planting tractors in several locations in the United Statescausing losses of 500 million dollars among farmers. But the situation could be worse. It is estimated that a major storm like Carrington’s could occur once a century. There hasn’t been one this big since then, so it could happen in the not too distant future. And today we depend much more on technologies than then. It is estimated that the losses could be more than 2 billion dollars. A natural process. This artificial wall that Walsh wants to create is inspired by a process that occurs naturally. And the thing is that, from time to time, small fragments of the Earth’s atmosphere break off and join the magnetic field, reinforcing it before the arrival of charged particles from the Sun. Lithium and barium would do something similar, artificially. Simulations only: For now, Brian Walsh has only made simulations of his invention, he has not tested it in space by any means. He himself recognizes that it is a complex process, so it must be done perfectly so that it causes more benefits than problems. Releasing ionizable elements at random could be harmful if not done in the right place. In addition, ways must be found to put ships in the correct place in their orbit before the storm arrives, so it is important to speed up the process while improving prediction methods. Handicaps. Although it may seem like a lot of mass is required to carry out this procedure, Walsh insists that the payload needs fall within current launch capabilities. However, he recognizes that it is an expensive process. Therefore, it would be necessary to look for ways to optimize it so that the necessary investment is not so large. For example, you want to work on pulsed release so that ionizable material is not wasted. In short, this method of controlling space weather is not at all something that will be used imminently, but it is clear that in the future we will need something like this. If not this method, another, but we greatly need something that protects us from the harshest elements of the Sun. Image | NASA | Walsh et al. In Xataka | A sunspot 17 times larger than Earth caused red auroras across half the world. It is a very rare event

Walking 20 minutes a day after age 55 is very good. The secret of healthy maturity is to do it much earlier

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An increasingly repeated idea is that, to have a quality retirementyou have to keep moving throughout maturity and with adequate physical activity. The problem is that many times people wait until they are 55 years old to start taking care of themselves and in many cases because they already have a metabolic disease. And this should make us aware that the sooner we start taking care of ourselves, the better. Walk It has been crowned as the star exercise for older adults, and the scientific evidence that supports it is overwhelming. A study from the year 2023 points out that walking 30 minutes a day for 5 days a week reduces the risk of age-related diseases, although it is especially emphasized that it must be done at a high speed and that requires some effort for the body and not as a simple walk. If this is done, we will be significantly reducing the risk of suffering from cardiovascular diseases and type 2 diabetes, but also protects against dementia. And if that were not enough, a review conducted this year with 180,000 participants demonstrated an 18% to 30% reduction in mortality from all causes with moderate levels of physical activity. In figures. It’s not that Olympic records need to be broken, but simply taking 5,694 steps a day is associated with a 13% lower risk of mortality from all causes. And as we have said before, if it is done a speed high, a greater benefit is achieved. When to start. If the benefits in middle age are so incredible, why does science demand that we start much earlier? The answer lies in sarcopenia, which is the process of loss of muscle mass that we face when we begin to age without doing any type of strength exercise. And that is why the deadline of 30 years is set to begin to remedy it. Because? From this age onwards, it has been seen that between 3% and 5% of muscle mass is lost per decade. according to the NIHand other studies suggest that this figure can be between 3% and 8% per decade after age 30. AND from 60 years old the rate of decline becomes even greater. With all this information, it is estimated that right now between 10% and 20% of older adults suffer from sarcopenia, and lack of exercise is the main factor that worsens this progressive muscle loss. The recipe. The WHO here is very clear in its guidelines and, curiously, it does not make reductions upon reaching retirement, so it does not understand a specific age from which you must exercise no matter what, but rather it points out that you should always do it. That is why their recommendations are exactly the same for adults from 18 to 64 years old as for those over 65 years old: relativize. Between 150 and 300 minutes a week of moderate aerobic activity (such as walking), or between 75 and 150 minutes of vigorous intensity. Furthermore, the WHO asks to incorporate muscle group strengthening exercises at least two days a week for all adults. In the specific case of adults over 65 years of age, the only difference is that activities that improve balance must be added to the general recommendations three or more days per week to avoid fatal falls. Images | Emma Simpson In Xataka | There’s a reason why working out for an hour a day at the gym doesn’t give you results. And that reason is evolution In Trends | The trainers agree: “From the age of 55, you should walk every day for at least 20 minutes, preferring stairs, doing gentle stretches and working on balance.”

They promised us Rapunzel’s hair with very expensive cosmetics. Science says the real secret has been in your kitchen for millennia

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Mythical representations of women, whether Botticelli’s Venus, the Hindu goddess Lakshmi or the maidens of Arthurian legends, often share an unmistakable trait: long, flowing and seemingly unattainable hair. It’s easy to think that such lengths are confined to the realm of mythology, untouched by the harsh reality of split ends and frizz. However, just swipe through TikTok or Instagram to find content creators sporting hair that would rival Rapunzel herself. Many of these influencers They promise that your hair has grown at a dizzying rate thanks to a specific technique: hair oiling or hair oiling. But, faced with shelves full of exotic formulas and luxury serums, an inevitable question arises: do we really need expensive products or has the ancient secret always been hidden in our kitchen in the form of olive oil? The resurgence of an ancient ritual. Although the term hair oiling It may sound like a modern invention packaged for Generation Z, the reality is very different. This practice was not born yesterday under the ring of light of a smartphone. Hair oiling is a technique deeply rooted in ayurvedic medicine from India, with Sanskrit texts from more than 5,000 years ago that already recommended infusing hair with natural oils to restore its shine and relax the mind. Likewise, in ancient Egypt also ointments were used based on animal fat or castor oil for similar purposes. What has changed then? The showcase. He hair oiling In a few months it has gone from being a “legacy trick” to an essential aesthetic ritual. Social media has choreographed it into a highly recognizable scene that includes a slow massage, meticulous application of oils before washing, a warm towel, and blow-drying to an incredibly shiny finish (glossy). Among the avalanche of coconut, argan and jojoba oils, olive oil has begun to reclaim its throne, not only because of its accessibility, but because it has historically been the cornerstone of Mediterranean cosmetics and the basis for extracting the properties of countless medicinal plants. The science behind the shine. Beyond visual aesthetics, the big question is whether slathering your hair in oil really works. The answer from science is a resounding yes, although with important nuances. Rocío Lajarín, doctor in Pharmacy and CEO of Alma Secret, explains in GQ that hair is made up of 90% proteins, mainly keratin. “When we use oils with structural affinity, we manage to reduce protein loss and reinforce the resistance of the hair shaft,” he says. The portal Healthline adds that regular oiling reduces “hygral fatigue” (the repetitive swelling and drying of the hair fiber when wet), acting as a cement that protects the cuticles. If we focus on “liquid gold”, clinical studies support its many benefits: Deep hydration and elasticity: An investigation of the Journal of Cosmetic Science demonstrates how olive oil It penetrates the hair fiber thanks to its high content of essential fatty acids, significantly improving hydration and resistance to breakage. A cocktail of vitamins: Virgin olive oil rejuvenates hair because it contains vitamin E, vitamin C (which stimulates collagen formation) and vitamin A (enhancers cell regeneration). Shield against damage and the sun: The International Journal of Trichology emphasizes that extra virgin olive oil contains hydroxytyrosol, a polyphenol that fights free radicals and cellular damage induced by UV-A rays. In addition, it is highly effective in reducing damage after subjecting hair to chemical processes such as dyes. Antifungal action: The same International Journal of Trichology points out that olive oil has an inhibitory influence on fungi that attack hair, such as Microsporum gypseum. The great debate: Does it make hair grow? This is where dermatology collides with internet myths. Dermatologist Andrea Combalia warns in Telva that at hair oiling “Many benefits are being attributed to it that are not real, such as hair growing faster or increasing its density.” Doctors consulted in Cleveland Clinic They agree that growth rate and thickness are predetermined by genetics, age and hormones. Oils prevent breakage (allowing length to be retained), but do not accelerate the growth phase from the follicle. However, dermatologist Ana Molina contributes in Trends a fascinating fact. It has been observed that the phytoestrogens present in olive oil can have an antiandrogenic effect by inhibiting the enzyme 5-alpha-reductase (which converts testosterone into DHT). Since DHT causes miniaturization of follicles in androgenetic alopecia, “phytoestrogens may help prevent or slow its progression.” Roots or just tips? This is the point of greatest controversy. Oiling the scalp before washing protects the lipid barrier of the skin against the aggressive surfactants in the shampoo. However, hairdresser Daniel Gil in Marie Claire and Dr. Steven Walker in GQ They are blunt: if you have an oily scalp or suffer from seborrheic dermatitis, you should avoid applying oils directly to the roots. Dr. Shilpi Khetarpal of the Cleveland Clinic confirms this: if you are prone to dandruff, applying oil can worsen the problem by feeding the fungus Malasseziacausing more inflammation. In these cases, the hair oiling It should be strictly from medium to ends. A ritual with common sense. At the end of the day, olive oil is not going to rewrite your hair genetics or magically transform you into a Renaissance painting. What science tells us is much more pragmatic and, at the same time, liberating. The true value of this trend lies in understanding hair care as a ritual that respects our natural hair structure, and not as a compulsive accumulation of synthetic cosmetics. Olive oil is a powerful, accessible and dermatologically endorsed tool to defend our hair from pollution, the heat of straighteners and daily wear and tear. Applied with common sense, the liquid gold of our Mediterranean diet is also confirmed as the best cosmetic in our bathroom. Image | Photo by Curology on Unsplash Xataka | For years we blamed stress for baldness without understanding why. Science has just found the missing link

secret training for war in Ukraine

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The scene took place a few months ago. Ukrainian soldiers surprised British instructors when they discovered that many NATO armies still They did not use anti-drone networks on a regular basis. After several years of war, Ukraine was beginning to teach the West how to survive on a front dominated by drones. Much more than drones. For much of the Ukraine war, the relationship between China and Russia has been interpreted primarily in terms economic and technological. Beijing bought Russian oil and gas while Chinese companies appeared linked to the supply of electronic components, drones and machinery useful for the Russian military industry. However, the revelations he has had access Reuters on the secret training of Russian military in Chinese facilities point to something much deeper: China would not be limiting itself to indirectly supporting the Russian war economy, but rather participating in the tactical and doctrinal training of soldiers who then return directly to the Ukrainian front. This enormously changes the dimension of the relationship between both countries. War as a military classroom. According to the documents and sources European intelligence agencies, some 200 Russian soldiers were trained discreetly in China at the end of 2025 under an agreement signed between senior commanders of both countries. He program included training in FPV drones, electronic warfare, army aviation, mechanized infantry and demining. Some sessions took place in military centers in Beijing, Nanjing, Zhengzhou or Shijiazhuang. What is important is not only the relatively small number of soldiers, but the profile of many of them: instructors and commanders capable of relaying that knowledge to whole units once back in Ukraine. In other words, China would not simply be sending technology, but helping to perfect the way Russia fights modern war. China learns while Russia fights. It just so happens that the relationship also greatly benefits Beijing. The People’s Liberation Army has not fought a major war in decades and the Russian invasion of Ukraine has become the largest military laboratory real of the planet. Russia brings direct combat experience in drones, trenches, electronic warfare and mass attrition. China provides industrial capacity, advanced simulators, technological production and training methods increasingly sophisticated. The exchange is extremely valuable for both. Moscow gains access to technology and training difficult to obtain under Western sanctions, while Beijing can observe how modern weapons, tactics and doctrines really work without being officially involved in the conflict. Silent revolution. The heart of all this cooperation revolves around drones. Ukraine has completely transformed the way it fights using cheap FPV capable of destroying armored vehicles, fortified positions and even helicopters. Russia had to quickly adapt to that reality and now appears to be turning to China to further professionalize part of that ecosystem. The documents describe simulator training flight, coordinated use of drones with mortars, electronic warfare against enemy drones and physical interception systems through networks. All of this reflects the extent to which modern warfare is ceasing to depend exclusively on large traditional platforms to increasingly focus on cheap, massive and very difficult to neutralize systems. Europe’s concern. For the European agencies, what is truly disturbing is that part of those soldiers trained in China already they would have participated later in combat operations in occupied Crimea and Zaporizhzhia. This means that the knowledge acquired in Chinese facilities ends up being applied directly on the European battlefield. Beijing, for its part, continues to publicly defend a neutral position and continues to present itself as a possible peace mediator, but this type of cooperation seriously erodes that image. In the eyes of many Western governments, China would be entering a much more sensitive gray area: not officially sending its own troops or weapons, but contributing to improving Russian operational capacity in an active war against Ukraine. Increasingly military alliance. The revelation It also confirms the extent to which the “limitless” partnership announced by Xi Jinping and Vladimir Putin before the 2022 invasion has evolved far beyond simple joint exercises or diplomatic statements. China and Russia no longer seem to limit themselves to coordinating political positions vis-à-vis the West, they are beginning to share knowledge combat practices, training and doctrine. The most significant detail may be precisely the secrecy of the agreements: prohibition of media coverage, restrictions on information to third parties and programs developed discreetly away from the international spotlight. All this suggests that both countries perfectly understand the political sensitivity of a cooperation that, although still indirect, gets closer and closer to China to the real workings of the war in Ukraine. Image | Vitaly V. Kuzmin In Xataka | The closure of the Strait of Hormuz chokes the Chinese economy. Its only energy solution is a historic pact with Putin In Xataka | While everyone was looking at Hormuz, Russia has found a much more important route to supply drones to Iran

Almost 2,000 years ago a man died with a mysterious case while fleeing Pompeii. We finally know his secret

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Get in the situation. It’s any day of any month and you are at home doing something when suddenly you hear screams in the street. You look out the window and see people running away in terror. Not only that. In the distance you see how the ash and burning rock rise from a volcano that both you and the rest of your neighbors thought were immersed in unalterable lethargy. What would you do in the face of such a scenario? something similar They lived 1947 years ago the Pompeians. Now we finally know what one of the unfortunate people who did not manage to save himself did: hold on to your briefcase of doctor. When Vesuvius woke up. The ruins of Pompeii were discovered long ago several centuries and archaeologists have been unraveling its mysteries for decades, trying to know above all what happened that fateful August 24, 79 AD (some versions speak of October) in which Vesuvius erupted and condemned the city of Campania, along with other towns such as Herculaneum, Stabia and Oplontis, asphyxiated under a layer of ash. However, despite all the research and rivers of ink that have flowed on the subject in recent years, the ruins of Pompey continue to retain their ability to surprise us. A figure in Ortho dei Fuggiaschi. One of the corners that has aroused the most fascination is the Ortho dei Fuggiaschithe ‘Garden of the Fugitives’, where we have found the remains of some 13 victims of Vesuvius. The reason is very simple: thanks to the method archaeologist molding Giuseppe Fiorelli20 centuries later, their corpses continue to starkly reflect the desperation of those men, women and children who tried to save themselves while their city was eclipsed by a dense rain of ash and lapilli, the walls collapsed and Vesuvius spewed pyroclasts. We knew that the victims who ended up perishing in the Ortho dei Fuggiaschi were probably seeking refuge, we also have a fairly precise idea of What were your last moments like? before dying. Thanks to Fiorelli’s plaster mold method we can even visualize the scene. The big question is… Can we go further? Who were those people? What did they do? What did they do before leaving their homes on the run? They are fascinating questions. Especially because, before perishing, some victims of Vesuvius they left us clues about your routine. There are cases, for example, in which the scene suggests that the victims were carrying jewelry and coinswhich leads us to think that they were trying to keep their most valuable possessions safe, perhaps so as not to lose them. Perhaps to start a new life in an impulse not so different from the one we would have today. Clinging to the medicine cabinet. Now researchers have discovered another story in it Ortho dei Fuggiaschil. More than 70 years after the first excavations and thanks to the use of To be more precise, scientists have identified a small box of organic material with metal parts and a series of instruments “compatible with a medical kit.” For example, a slab of slate that could have been used to make medical or cosmetic substances and surgical instruments. The x-ray and tomography examination has also shown a cloth bag with bronze and silver coins and a mechanism with a toothed wheel that allowed the box to be closed. Those responsible for the site stand out Furthermore, the study was carried out without putting the molds at risk. The decline of a doctor? That is the hypothesis with which the researchers work, who believe that the briefcase gives us a clue as to who the person who died next to him was. “He was probably a doctor, a victim of the tragedy while trying to escape, taking with him some of the tools of his trade,” he explains in a statement the Archaeological Park of Pompeii, which insists that the instruments located inside the case provide us with “a valuable and rare clue about his profession.” “2,000 years ago there were people who were not limited to practicing medicine during office hours, but were doctors at all times, even when fleeing the eruption, which was thwarted by the pyroclastic cloud that reached the group of fugitives who were trying to leave the city through Porta Nocera,” reflect Gabriel Zuchtriegel. “This man took his instruments with him to be prepared to rebuild his life elsewhere thanks to his profession, but perhaps also to help others.” Images | Pompeii Archaeological Park In Xataka | 2,000 years later, Pompeii continues to reveal fascinating things: the latest is a blue room for unknown uses

Benidorm triples its population in summer and does not run out of water. The secret is a miracle of invisible engineering

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We assume that when we turn on the faucet water comes out. It is an almost automatic, everyday gesture that we rarely stop to think about. However, ensuring that this resource springs up clean and safe in Benidorm, a city that its population triples In the middle of the summer high season, it requires a true miracle of engineering and management. In the Marina Baixa, one of the regions of the Valencian Community with greater water stresscatering to millions of annual visitors is a colossal puzzle. As reported by local mediathe philosophy of those who operate this gear is perfectly summarized by Ciriaco Clemente, manager of Veolia in Benidorm: “In a territory where the pressure on water resources is structural and permanent, guaranteeing that the water reaches the tap in perfect sanitary conditions and that, once used, it returns to the environment without damaging it is not an option, it is an obligation.” The challenge of quantity and quality. The water challenge is not exclusive to the Alicante coast, it is a national problem. According to official data from the Ministry of Health (SINAC)the quality of water in Spain is increasingly threatened. The filtration of nitrates from industrial agricultural activity is saturating the self-cleaning capacity of many aquifers, putting local water treatment plants in hundreds of municipalities in check, especially in inland Spain. While much of inland Spain deals with nitrate pollution, Benidorm faces its own perfect storm: extreme seasonal demand and the threat of shortages. The city not only needs to ensure that there is enough water for everyone, but that its quality is impeccable under all circumstances, regardless of whether it comes from the Guadalest reservoir, the Amadorio reservoir or the Bajo del Algar Canal. To overcome this crisis, the tourist capital has shielded itself around two essential infrastructures managed by Veolia: the Drinking Water Treatment Station (ETAP) and the Wastewater Treatment Plant (WWTP). Beyond thirst. Water quality is synonymous with public health and economic survival. In fact, consuming water with nitrate levels close to or higher The European legal limit of 50 mg/L carries serious risks, and recent medical studies suggest that even much lower thresholds could be linked to oncological problems. Treating water to the millimeter is, therefore, a matter of life or death. On the economic level, as the newspaper highlights Informationfor the enormous hotel plant in Benidorm, opening the tap and letting water flow with total health guarantees “is not a secondary detail: it is a basic requirement to operate and to maintain the trust of visitors.” In addition, the system must be able to withstand the onslaught of the weather. According to Alicante Plazathe ETAP faces extreme scenarios after episodes of torrential rains, when the water collected arrives with enormous turbidity due to the dragging of sediments. Given this, the plant adjusts its treatments in real time. “Our responsibility does not end with there being water; it ends when that water reaches the tap in perfect condition,” says Noelia Llinares, ETAP plant manager, in these media. Leaving behind traditional management. As detailed by Veoliathe answer is in technology. A digital ecosystem has been deployed in Benidorm that includes network-wide sensors, leak detection algorithms and remote control systems. This has allowed the milestone of reducing water losses in the network to minimum levels of 5%. To support this burden, ETAP itself already received a powerful injection of more than 9 million euros in its last major expansion in 2010. But the cycle does not end at the sink. The WWTP works under a strict circular economy philosophy: used water is not waste, it is a resource. Today, 35% of the water that reaches the treatment plant is already reused, mainly for agricultural irrigation. And there is an extra factor that adds complexity: wastewater treatment plants are electricity devourers. To counteract this, María José Martínez, head of the WWTP, details that the facility uses byproducts such as biogas or sludge to generate its own energy. “The objective is clear: for the plant to become increasingly self-sufficient and for its environmental footprint to be as small as possible,” says Martínez. The next challenge: squeeze regeneration. Behind all this there is an ambitious project underway: the Regenerated Water Master Plan. The short-term objective is to take advantage of up to 2 additional cubic hectometers of regenerated water for purely urban uses, alleviating the suffocation of conventional sources and reinforcing the network against drought. Benidorm has empirically demonstrated that the high numbers of mass tourism and water sustainability are not antagonistic concepts, but rather necessary allies. In a context marked by climate change, the experience of the city of Alicante provides an inescapable journalistic and vital lesson: intelligent water management is no longer a simple competitive advantage or a green slogan. It is, purely and simply, a question of survival. Every drop counts, from the moment it is dammed until, thanks to engineering, it is regenerated to start again. Image | Diego Delso Xataka | The future of 150,000 hectares of crops is decided today. We have been fighting for decades, but the wars over water have only just begun

There is a secret outpost in a desert in Iraq to bomb Tehran

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During the Gulf Warseveral Bedouins in western Iraq began to see helicopters and military convoys appear and disappear in remote areas of the desert where there was apparently nothing. Years later it was learned that many of those areas had been used as secret outposts and makeshift runways for Western special operations far from any official map. An outpost in the middle of nowhere. He told it in an exclusive the wall street journal. The war between Israel and Iran has left images of missiles, bombers and attacks thousands of kilometers away, but one of the most surprising stories of the conflict has occurred far from the cameras, in the middle of the Iraqi desert. According to several sources cited by the mediaIsrael secretly set up a forward base inside Iraq to support part of its air campaign against Tehran. Apparently, the place served as a logistics center, a support point for special forces and a rescue platform for downed pilots, all just a few steps away. hundreds of kilometers from Iran and hidden in one of the emptiest and most difficult to control areas of the Middle East. The idea seems straight out of a military espionage movie: a clandestine enclave installed silently inside another country, protected from the air and prepared to intervene in a regional war without official recognition. The strategic importance of Iraq. The detail reveals to what extent the distance was one of the big problems Israeli operatives during the campaign against Iran. Bombing Iranian targets from Israeli territory involves traveling enormous distances, maintaining long flight routes and assuming constant risks for pilots and aircraft. Having an outpost in Iraq changed part of that equation. It allowed rescue teams to be brought closer, special forces to be deployed and an intermediate point from which to react quickly in emergencies. The presence of Israeli air force commandos trained to operate in enemy territory further suggests that the enclave was not simply a makeshift base, but an infrastructure designed to sustain complex operations behind the lines of conflict. The pastor who almost discovered it all. The story took on an even more surreal tone when the base was nearly exposed by something as simple as a local shepherd. According to the published informationa local man alerted Iraqi authorities after observing strange movements and helicopter flights in the desert. The Iraqi Army sent several units to investigate and there began one of the most delicate episodes of the entire operation. The soldiers advanced in Humvees towards the area at dawn and ended up under intense fire supported from the air. In fact, a Iraqi soldier died and others were injured. The extraordinary thing is that for weeks no one understood exactly what had happened there: Iraq denounced an unauthorized foreign operation, some media initially pointed the finger at Washington, and rumors began to circulate about special forces operating clandestinely in the desert. Only later did the possibility begin to emerge that Israel was defending a secret facility directly linked to the war against Iran. Invisible war within another war. Plus: the episode shows the extent to which modern conflicts are full of invisible layers that rarely appear in official statements. While the world’s attention was focused in ballistic missilesdrones and attacks on Iranian facilities, in parallel clandestine operations were carried out in third countries to sustain all this military machinery. I remembered the Journal that the western Iraqi desert had been used for decades these types of activities by American forces, from the wars against Saddam Hussein to operations against the Islamic State. The reason is simple: the region is huge, isolated, and sparsely populated, making it a perfect place to deploy hard-to-detect temporary outposts. The difference is that now the scenario was not a US invasion or an anti-terrorist campaign, but a regional air war in which Israel needed to operate at an enormous distance from its territory. The long shadow of the United States. Although sources assure that Washington knew of the existence of the Israeli base, the United States I would have avoided participating directly in the clashes that occurred around the enclave. Even so, the whole story once again shows the extent to which the US military infrastructure in the Middle East continues to condition any regional conflict. The bases, air corridors, intelligence and experience networks accumulated over decades of operations in Iraq have created an ecosystem that allows for this type of rapid and discreet deployments. In fact, his own rescue of an F-15 American aircraft shot down near Isfahan during the war demonstrates that both countries were operating simultaneously in an extremely complex theater, one where commandos, helicopters and rescue teams could move across several countries while officially many of those operations They didn’t even exist. Image | NARA In Xataka | While everyone was looking at Hormuz, Russia has found a much more important route to supply drones to Iran In Xataka | We sensed that Iran’s attacks on the US had been important. In reality, they were devastating

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