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China has just opened the first megatienda of humanoid robots. What comes later promises even more

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What will it be to buy a robot like who buys a car? China responds with “Robot Mall”a megatienda in Beijing that its promoters present as the first 4S for humanoids: sales, spare parts, service and feedback of the user under the same roof. The idea is simple and ambitious at the same time, converting curiosids for daily use and maintenance contracts. What is a 4S (and why does it matter now). In China, the 4S was the answer to a simple question: what if I buy and maintain my car in the same place? This model is now exported to robots: a place to see what they do, how much they cost and how they remain with spare parts and technical service, in addition to measuring the customer experience. If it works, it converts curiosids for humanoids into informed purchase decisions. The appointment is in Yizhuang, the Beijing Alta District also known as Beijing E-Town. He opened on August 8, in parallel to the World Robot Conference (from August 8 to 12), and occupies four floors with about 4,000 square meters. On the ground floor, Immersive demonstrations of real uses in industry and health Together with reference humanoids such as Unitree G1, Ubtech Walker S or “Tiangong”. The second level is more interactive, with brain-machine interfaces, robotic arms and participatory exhibitions; the third centralizes diagnosis, replacement of components and remote operation and maintenance; The fourth floor is designed to close B2B agreements in negotiation rooms. What can you see and do there. There are seven major categories: medical, industrial, company, bionic, integrated, biped and wheels. Among the demonstrations, a robotic dog dressed in lion, a humanoid that dispenses traditional Chinese medicine, arms that paint, machines that brings or prepare coffee, and others that remove pharmacy boxes or serve drinks from a bar. Scenes that are a reflection of how advanced this technology is, but also of the path that still has. Are they sold to the public? Not all robots are ready to leave the store towards a living room or factory, but many can be bought or hired. Prices start around 260 euros (2,000 yuan) – thought for simple company or educational models – and scale up to several million yuan, a high range that is equivalent to several hundred thousand euros according to the platform and its configuration. In most cases, the sale includes installation, training and technical service. In the 4S format, the last “S” refers to Survey, which in this context means collecting the opinion and experience of the customer after the purchase. In Robot Mall this translates into periodic reviews, remote diagnosis, parts replacement and technical assistance, but also to collect data on how robots are used on a day -to -day basis. That information returns to the manufacturer to refine functions, improve reliability and prepare future versions. Why now. In 2024, China manufactured 556,000 industrial robots and concentrated two thirds of the world’s robotics patents, according to data from the Xinhua news agency. With figures thus, the opening of Robot Mall is no accident: it is part of a strategy to get the humanoids from the laboratory, put them in real environments and reinforce a sector that in Yizhuang already moves more than 10,000 million yuan in annual production value. What comes later. Robot Mall will not stay in this initial version. According to those responsible, in November 2025 they promise a 2.0 version, with more types of more varied robots and use scenarios. The idea is to expand demonstrations to more realistic environments and add manufacturers, reinforcing the role of Yizhuang as a nerve center of robotics in China. The images speak for themselves. The AP agency has prepared a photographic gallery with some of the best moments of the opening of Robot Mall. You can enjoy them directly from your website. Images | Xinhua In Xataka | China’s first avant -garde lithography machine is not the biggest US problem. They will be the other two that are on their way

Smart Band 10 may seem more of the same. After a month on the wrist, it is clear why Xiaomi has chosen to repeat

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There are times when a new model does not seek to break the previous one. There is no leap that, at least with the naked eye, seems decisive. Just a premise: keep doing what was already working, refining details. The Xiaomi Smart Band 10 It moves precisely in that direction. And although that approach makes all the meaning from the point of view of the product, it also raises a dilemma for the user: if you already know everything, Is it worth going through the box? In a new one 24/7 of the Xataka YouTube channelwe have tested this bracelet for 30 real days to discover if Xiaomi’s bet for continuity plays in favor … or begins to fall short. Mario Arroyo He has been testing the Smart Band 10 for a real month, without concessions: training in the park, home exercise, days of work and rest. And when he says that he has tried “in depth,” he does clearly. Because after several days using her, her impression was clear: “I feel it the same as its previous generation, or even the same as the Smart Band 8”The interesting thing is that this statement is not intended to be negative. It is a finding that Xiaomi has refined its formula without great shocks. Enough to recommend it? In the video we analyze that response in more detail. What we liked (and what is not) of the Xiaomi Smart Band 10 There is something that Xiaomi has managed to nail generation after generation: comfort. Mario confirms it after several days of training: the bracelet is so light that it practically disappears. But that physical advantage has a face B. “The screen is small and its format prevents you from seeing the data with comfort”, That is, the Smart Band 10 does not hinder when you train, but it does not help at all if you want to control your real -time progress. It is not an important lack, but a clue to the type of user to which it is directed: someone who wants to register, does not necessarily interact. As a day -to -day device, this smart band meets the essential. Who has had it on the wrist for weeks has been able to control their health clearly: steps, calories, heart rhythm, blood oxygen, sleep. In sports, we find the more than 150 already common ways, and a detail that he wanted to highlight: “A ‘running course’ where you have 10 different ways to start running with different activities. It seemed to me a cool addition, the truth,” he tells us. But there are also elements that have not changed, as he recalls: “We cannot pay with it because we have no NFC, and we don’t have integrated GPS.” One of the clear advantages of this generation is on the battery. The capacity has not changed – 233 mAh – but energy management is. In the first load, using it in moderation, the bracelet endured 18 days without disheveled. In a second attempt, with more training and the always active screen, he resisted 10 days. The data impresses, but the best is what it conveys: “Put the bracelet and forget about loading it. Not having to be aware of the battery of a device, is health … at least for me, ”summarizes our partner. The full load takes only one hour, but the magnetic connector has not improved with respect to previous models. To what extent does this compensate in front of a smartwatch? The answer, after 30 days of use, is in our video. Xiaomi has found a formula that works for it, and this generation confirms it. It does not revolutionize, but it also does not fail in many ways. “After 30 days using the Xiaomi Smart Band 10 the feeling I have is to see a movie that I like very much for the tenth time,” says our partner. A known experience, yes, but also solid. The price, yes, has risen slightly compared to the previous one. In addition, some details have improved … but is enough to justify your purchase against previous generations? There are things that are only appreciated after living with it day by day, and that is just what we try to address in The latest of Xataka YouTube channel. Images | Xataka In Xataka | NOHING seeks the perfect balance with its new cmf watch 3 pro: comes with integrated chatgpt and promises 13 days of autonomy

During World War II, Australia sent an ornitorrinco to Churchill. Died on the trip and 82 years later we know why

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In 1943, a camouflaged ship departed from Australia to England with an ultrasecreta load to the peculiar: An ornithorrinco called Winston, a diplomatic gift for British Prime Minister Winston Churchill. The creature died during the trip and for 82 years a German submarine was blamed. Some researchers They have discovered What really happened. Winston was not loaded by the Germans. Australian students They have resolved the enigma After examining the archives of the naturalist David Fleay, who captured the animal. The boat’s temperature records reveal that Winston died due to thermal stress by crossing Ecuador, not because of enemy attacks. Temperatures exceeded 27 degrees Celsius for a week, well above the survival limit of the species. Why Australia gave an ornitorrinco. In the middle of World War II, Australia felt abandoned by Great Britain while Japan approached the Pacific. Australian Foreign Minister Herbert Evatt knew that Churchill collected exotic animals and thought that an ornitorrinco, a creature that many considered at the time a taxdermic hoax, could tip the balance in favor of Canberra military support requests. The trip that should never have done. Winston was captured near Melbourne and embarked on a specially designed container, with burrows lined with hay, Australian stream water and 50,000 worms for the 45 -day path. David Fleay, the naturalist in charge, opposed from the beginning: no ornitorrinco had ever survived such a long trip and exports of the species were prohibited. The cause of “official” death. When Winston appeared dead in his tank, Churchill wrote to the Australian prime minister expressing his “pain” for loss. To avoid a diplomatic incident, death was hidden for years. When it finally came to light, the version that the Ornitorrinco had died from the stress of the attacks of the German submarines, a story that Fleay himself supported publicly. The clues of the logbook. Harrison Croft, a doctoral student at Monash University, agreed to files in Canberra and London that included interviews with the caretaker of the Ornitorrinco. “They made a kind of autopsy and he was very concrete: there was no explosion, everything was calm on board,” Croft explains. In parallel, an Australian museum team Digitized the collection Fleay staff, where they found the daily temperature record that revealed the real cause of death. Ship’s logbook. Image: Australia Museum Ornitorrincos Based Diplomacy. Australia tried again in 1947, sending three ornithorrincos to the New York Bronx Zoo. Betty died soon after arriving, but Penelope and Cecil managed to arrive healthy and saved to the country, even becoming authentic celebrities and a hook for the press at that time. The media expected them to be reproduced, but after a four -day “romance”, the thing did not go as expected. Image: Australia Museum The way to reproduce from an ornitorrinco is fascinating, since they are monoturem mammals, which means that, despite being mammals, they put eggs. In fact, they are one of the only five species of mammals that do this (the other four belong to species of Equidas). So when they saw that Penelope did not end up reproducing, it became a fun scandal at the time. In 1957 he disappeared mysteriously and Cecil died the next day of “broken heart”, according to the press. Since then, Australia strictly prohibited the export of ornitorrincos. Only two have left the country In 70 years, both to the San Diego Zoo in 2019. Cover image | Yousuf Karsh and Michael Jerrard In Xataka | If Spain believes that velutinas are a problem is because it does not know what the US has found: radioactive wasps

Welcome to Hangzhou, the house of the ‘Six Little Dragons’

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The Chinese city of Shenzhen is still one technological centers most prominent in the country. There they have their headquarters giants such as Huawei, Tencent or DJI. However, with the Boom of AI there is another city that is concentrating some of the most innovative companies of the moment and already stands like the new Chinese Valley Silicon. Welcome to Hangzhou. Alibaba. Jack Ma chose his hometown as the headquarters of the one who would become the Chinese giant of electronic commerce. Without knowing it, he put the seed of what Hangzhou is now. Alibaba attracted investors and encouraged the creation of a culture tech local; even former employees have formed other companies In the city. Alibaba Cloud Technology has also been key in the development of many AI startups. With Eight data centers In the region, Alibaba has made Hangzhou fertile land for the birth of numerous startups IA. The ‘Six Little Dragons’. This is how the group formed by the six most leading companies of the moment in China is nicknamed, all of them based in Hangzhou: University of Zhejiang. They call her the “Stanford of the East,”. Stanford University in California formed many of Silicon Valley’s outstanding figures and Zhejiang University is doing the same with the leaders of these companies. Deepseek, Manycore and Deep Robotics were covers by students of this university. According to SCMPuntil September 2024 the university had produced 102 Chinese startup executives. Government support. The city is home to numerous investment funds dedicated to incubating new technology companies and have very favorable policies that do not exist in other Chinese cities. They count on this SCMP video That students who want to form a company can get a loan of up to 500,000 Yuan (about 60,000 euros). If the company fails, the government covers up to 100,000 yuan and if it is more, up to 80% of the total loan. An example is that of Game Science, to whom the government paid the rental of the offices during the first three years and also helped them get the license to launch the game. Also the case of Brainco, a startup that as we said was based in Boston, but thanks to the incentives offered by the Chinese government, they managed to move to Hangzhou. Administrative efficiency. Another of the points where Hangzhou has stood out on other cities is its bureaucratic efficiency. Here was born Initiative called “A visit at most.” It means that if you have to do paperwork to set up a company or request some help, you just need to visit the administration once. It has worked so well that they are taking it to more cities. Return. The efforts to make Hangzhou a technological hub of reference are paying fruits. Official data indicates that Hangzhou’s technology industry It grew by 7.1% in 2024 and produced 630,000 million yuan (approximately 75,000 million euros), which is a third of the gross domestic product of the city. Image | Wikipedia In Xataka | China wants to win the AI race at all costs. The striking how you are doing it: creating another career among its cities

It has been a European country

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Germany has the third highest construction in Europe. With its 368 meters, the Fernsehturmor the Berlin television tower, it is a lighthouse in the German city. It will remain the highest construction in the country, but by little. About 130 kilometers, near the town of Schipkau, the works to lift another colossus have begun: the wind turbine higher in the world. And beyond its dimensions, which are imposing, what really attracts attention is that … it is not Chinese. Peculiar design. It was last year when we met the Project for this wind turbine. The idea is that of a tower with a center at 300 meters above the ground level and a total height telling 365 meter blades. It is very high, yes, but the blades are really less impressive than those of the Chinese wind turbine, with its diameter of 270 meters in which Three football fields would fit From one end to the rotor, which is capable of Alter the microclimate. To achieve such a height, the conventional “Palote” design would not be viable, so that those responsible for Gicon have devised a support similar to that of high voltage towers, but crowned with the turbine and blades. It is something that can be seen in this 3D animation: It is not a whim. Operating at that height has two advantages. One is that the wind speed is greater and, theoretically, it would allow to increase wind production by 40%. How we read in the middle HeiseJochen Grossmann, general director of Gicon, comments that “the performance of large -altitude turbines is double that of conventional facilities.” But it’s not just about take faster windsbut to be able to generate more electricity in fields that already had wind turbines. They have defined this project as a three -level generation, with Solar panels On the ground, installed on land where there were already traditional generators and, as their new ‘mills’ are so high, they could be integrated in parallel to the traditional ones. They would not be stolen wind and the gain would be optimized. Ambition. At the moment, they have already started the construction and, although they had planned to start producing this year, a small delay has moved the inauguration until some time of 2026. The idea, however, is to install up to 1,000 turbines of these characteristics by the country before 2030. Complaints. From Gicon it was announced that part of the economic benefits will be shared with the local population, but as we read in the middle RBBnot everyone has felt this giant wind turbine well. The Schwarzheide air club submitted an application to the authorities by stating that its location, about two kilometers from the airfield, will harm its activity. The Superior Administrative Court of Berlin, however, backed down the complaint. And it seems a curious case because the application was filed when the airfield had already been dismantled after the termination of the use contract between Schipkau and Schwarzheide. But well, although it seems that the times are too dilated for the construction of a single wind turbine (for the moment), from the company they have claimed that they prioritize the precision About the speed. And we will see if things march well in Germany and these projects can be exported to countries such as Spain, one of the countries with more wind installed. Image | Gicon In Xataka | China installed in August the most powerful “wind turbine” capable of resisting typhons. Two blades have just been broken

We have found a centrifuge bacteria

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We depend on plastic and, at the same time, we have been trying to find a substitute. That serves the same, but does not generate the tons of garbage and the microplastics that are generated today. There are several alternatives underway And now, a group of researchers believe there are found A convincing solution: use bacteria as a kind of living factory that produces the plastic of the future. And it is really promising: as resistant as metal, but that does not pollute when decomposing. Urgent alternatives. Seeing that plastic dependence and? Recycling is not something that is done too welltry to limit the use of plastic through different regulations. The big problem of this material is that, when degrading, it does not disappear completely, but is broken into particles known as microplastics. They end in rivers, seas, In food and In our body (They have been found until In human testicles or in the breast milk). And, in the process, many of these plastics release toxic substances such as phthalates or bisphenol A (BPA), highly harmful and related to hormonal problems and even cancer. Looking for that alternativeresearchers from RICE University and the University of Houston began experimenting to find a substitute for plastic that meet three conditions: Non-polluting. That is just as strong, or more, than plastic. That can be manufactured in a scalable way. Centrifugating bacteria. With that in mind, the researchers considered bacterial cellulose. It is a substance that produces some bacteria naturally and that is very similar to the cellulose of the plants, but finer. The finding is not this, since the bacterial cellulose was already known, but it has not been developed on a large scale due to its disorganized structure and complexity when using it. Therefore, the novelty is not the material, but how they have managed to produce it. To get that cellulose, they developed a “rotational bioreactor.” It is a machine in which they introduce these bacteria that produce cellulose while keeping them in a liquid. And what they have forced is to limit their movement so that they do not move at random. Basically, and as if it were a washing machine, they have put the bacteria there and have turned them in a specific direction during the production of the material. In this way, the fibers that make up the cellulose and that were previously disorganized, are now aligned in an orderly manner. Of course, in him studyresearchers expose that it is something that makes the difference, since, as with other materials (steel or carbon fiber, for example), when the fibers are aligned it is when the final material has those properties that make it unique. In the upper image, the messy fibers. In the lower one, the fibers created through that “bioreactor” Properties. Several, and very promising. The team has detailed that the new material is: Biodegradable. Resistant to replace plastic, but also some metals. Flexible and transparent. What resistance are we talking about? Of a traction resistance of up to 436 MPa, approaching the one presented by materials such as glass or aluminumbut adding to that property that of being flexible and transparent. It can be given. Masr Saadi is the main author of the study and one of the characteristics that he has outstanding is that they can be added to the material. “The method allows you to easily integrate various additives to nanoscale directly into bacterial cellulose, which allows customizing material properties for specific applications. For example, adding nitruro nitruro nanolás, the resistance rose to 553 MPA, but the capacity of the material to dissipate heat was also improved, tripling its thermal efficiency with respect to normal samples. Promising. “We imagine that these bacterial cellulose sheets, resistant, multifunctional and ecological will become omnipresent, replacing plastics in various industries,” says Muhammad Maksud Rahman, another of the researchers involved. And, although this bioplastic is in the laboratory phase, its industrial potential is evident. This multifunctionality would allow the material not only to containers that are currently plastic, but also to technical textiles due to their resistance and properties, also to heat dissipation devices, to Flexible screenslight structural sensors or elements that can be used in the construction segment. But, as we say, it is still a product that has demonstrated its potential in the laboratory, but it still remains for it to reach the market. If you end up doing it, of course. In Xataka | We are very bad recycling plastic. A super worm that devours it can help us solve it

Hundreds of people attended a funeral. All normal except because the deceased was an AI model that had been removed

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The artificial intelligence boom is making us live moments of the most curious. There is people falling in love with an AIothers go to her as to a psychologist or for “Risheat” a loved one. What we needed to see was to celebrate a funeral for a retired model and it is just what happened a few days ago in San Francisco, where more than 200 people gathered to give the last goodbye to Claude 3 Sonnet. The deceased. July 21, Anthropic announced that he withdrew several modelsamong which was Claude 3 Sonnetprotagonist of this funeral picturesque. The model was announced in March 2024 and stood out for its balance between performance and efficiency. Together with him, Anthropic also withdrew Claude 1 and 2, in addition to confirming that Claude 3 Opus would disappear in January 2026. The funeral. It was held last Saturday in a warehouse in the Soma district of San Francisco and more than 200 people attended. They count on This Wired report that the decoration did not go unnoticed: a giant tentacle hanging from the ceiling and several mannequins with an aesthetic and represented different Claude models. In the center of the room he lay the mannequin that represented Claude 3 Sonnet and was surrounded by the most diverse offerings: from the classic flowers to a bottle of ranch sauce. Devotion. It sounds very absurd and clearly there was an aura of irony and humor in the event, but there were also emotional moments and even say in Wired that some attendees cried. Openai has the most popular chatbot, but Claude de Anthropic has a very devout fans community. The reason would be that Anthropic has managed to imbue a warm and friendly personality in his chatbot that has conquered many users. Exists a website where you can see ranking of the users who use Claude most and there are even people doing FAN ART With the company’s logo. Emotional connection Establishing affective links with a machine is not something new. In 1966 it was created Eliza, the first chatbotand many people who interacted with her ended up telling her personal things, as if she were another human, they called him the Eliza Effect. With the AI boom we are seeing how these links become popular and the success of apps such as Replika either Character.AI They are a clear example of this trend that increasingly adds more adherents. Attending the funeral of an AI sounds like a pretty fun plan to spend some time on the weekend, but developing an emotional connection with a chatbot is not always positive. The dark side. There are people whose connection with these chatbots brushes addiction to the point that Online support groups are being createdto alcoholics anonymous. In This study They analyzed how the use of chatbots affects our mental health and, although at the entrance it can have a positive effect, in the long run it is associated with higher levels of social isolation and emotional dependence. The experts alert of the risk of confusing the empathy of a machine with real empathy; A chatbot is always available to speak already It tells us what we want to hearThis causes a false sensation of empathy that can negatively affect our ability to connect with other human beings. Image | Chatgpt In Xataka | A group of experts in AI attended a party in a mansion. The topic of conversation: what will be when AI ends humanity

We knew that North Korea has been infiltrating workers in companies in the West. Now we know how they do

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North Korea has been infiltrating teleworkors with false identities in United States companies. After that country became more hostile, the actor’s attention turned to Europe. According to the FBI, the Department of Justice and Googlewhat these employees pursue is to get income to finance the North Korea Nuclear Program. He modus operandi It was a great unknown. Until now. A framework without any improvisation. A cybersecurity researcher who responds to the name of Sttyk It was made with a database that has shown the environment Wired. The files include, according to Sttyk, “dozens of data gigabytes” and “thousands of emails.” From this information an organized workers’ structure is extracted in twelve groups, which in turn have approximately other twelve members. They respond to a general “master boss.” Organization in spreadsheets. The group works using the Slack communication tool, Google, Github and spreadsheets accounts. In the latter, an exhaustive follow -up of the works and the progress of the objectives, both economic and strategic, is made. They even collect the needs of specific jobs (required programming languages) of the companies to attack and their locations, with a record of whether there have been contact with the companies or progress of the process. How they get work. A few days ago, the BBC collected Jin-Su’s testimonya false North Korean teleworking that managed to defect. He said that most of the time of his work focused on acquiring fraudulent identities to request work. He went through Chinese, but aware that he needed Western identities, more attractive to the labor market, he got identities of people from Hungary, Türkiye or the United Kingdom. From there, the most involved workers in the process of getting work are the ones who most dominate English, although the fact that communications with technology companies are done by platforms such as Slack helps a lot. Also that many interviews are not made face to face, although that can be reversed with the proliferation of interviews made with artificial intelligence. Researchers have found identical curriculum among the suspects of being false workers. What jobs do they point to. We knew that false teleworkors were looking for employment in technology companies. The filtration is confirmed and limited to the areas: artificial intelligence, blockchain, Bots development, web development and mobile apps and desktop, CMS development, etc. The question of income. Jin-Su said that several works between the United States and Europe, earned about $ 5,000 per month. From what I entered, I had to pay 85% to North Korea, and even so, he said “it is much better than when we were in North Korea.” According to a United Nations report in March 2024, workers manage to generate between 250 and 600 million euros per year for their country of origin. The money they retain has a lot of value when they return to their country (many work from Russia or China, where they have more freedom), so the reasons for dropout lose weight. In parallel to this group of teleworkors operate the hackers that They steal cryptocurrencies To pass at the hands of the regime. Only in a blow in March this year they got 1,500 million, but in December 2024 they accumulated Other 1.3 billion in 47 blows. Working conditions that scare. The filtration presents a scenario that, although better than the one in North Korea, is nothing flattering for the workers involved in the plot. According to a Slack recording, the boss’s account stated in a message that “everyone should work more than at least 14 hours a day.” Although it sounds a lot, it does not perform from the model of some Silicon Valley companies or of the Elon Musk vision and its 120 hours per week. Images | Kremlin and Altumcode in Unspash In Xataka | Now we know everything that the new North Korea resort offers for 2,000 dollars. There is only one rule: be Russian

The most difficult thing to succeed with the arrow in Barcelona’s pebetero 92 was that it was not noticed that there was a trick

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1992 was a year that will be remembered for many years in Spain. More than thirty years ago, but the economic and social footprint left Olympics of Barcelonathe Seville Expo And everything that surrounded both events still does not blur at all. Although we already know that “There was trick“Even in details as memorable as the flame arrow lighting the pebetero at the opening ceremony of the Olympics. What (we thought) happened. The torch entered the stadium in the hands of the largest Spanish medalist at that time, Palist Herminio Menéndez. Juan Antonio San Epifanio -EPI-, player of the Spanish Basketball Team, was in charge of taking it to the point where the Paralympic Arch Arch of Antonio Rebollo champion was waiting for him. The torch turned on an athlete’s arrow, which fired it through 86 meters from the stadium until it fell into the pebetero, lighting the Olympic flame between the clamor of the crowd of 50,000 people who crowded the stadium (plus 3.5 billion that watched him on television. What really happened. Rebollo faced A series of challenges that on television were not entirely clear. To start, the stadium was dark, so he had to take the dark shot, with the sole exception of a reflection indicated by the direction in which the Pebetero was. But the truth is that the arrow not only did the pebetero right, but should not do it: it had to pass a few meters away. The camera shot would make the rest, in a triquiñuela of perspectives that film directors know well and that makes it very complicated for the viewer to measure the distances. That is why there was an expert from the cinema. A film trick. To carry out the trick, there was Ábades Reyesveteran special effects designer and absolute reference of the sector in our cinema. He collaborated in more than 350 feature films, but it is in this event where he led to his most watched trick on a global scale. He won nine Goya awards and his are the effects of films such as ‘Oh, Carmela!’, It turns on yes or yes. Abades placed two of his collaborators outside the enclosure to pick up the arrow that would not have impacted the pebetero. Meanwhile, he would take care that the gas that came out of the pebetero became inflamed, something that would have happened in any case. That is, although Rebollo would have failed by many more meters than the planned and the perspective of the camera would have been useless, the flame would have turned on. Test and error. Of course, it was not the first time Rebollo shot the arrow. There were a series of essays in which Ábades could, for example, experiment with different materials for projectiles, and find one that would not go out during the flight. And they could also verify that it was not recommended that the date impact the alleged target, because it could spoil the gas outlet. A series of useless precautions because the illusion was simply perfect. Header | RTVE In Xataka | The three technological innovations that would change the history of the Olympic Games forever

We are running out of beaches on the planet. And we don’t realize because they are filling them at an indecent price

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There is something much worse than the appearance of algae either Fecal matter On the beaches. Even above of systematic “theft” That is being done on the coasts to continue raising brick, there is a silent reality whose ending is a scenario where, directly, we run out of beaches on the planet. That process is not just happening, we are spending a fortune at all. Global threat. I told this week The Financial Times In an extensive report. Rodanthein the Outer Banks of North Carolina, exemplifies the serious erosion suffered They have collapsed at sea. The problem, aggravated by more intense storms, strong tides and the rise in the level of the sea associated with climate change, is now amplified by a critical factor: the Sand scarcityresource that acts as a natural barrier to floods and temporal, but whose growing demand (especially For construction) it more expensive and limits its availability. The (no) trick. He method More common to stop erosion has been the “beach regeneration”, moving sand From other points, but in Rodanthe the initial cost would exceed 40 million dollarssomething unassumable for the municipality. This leaves as options the planned withdrawal of infrastructure or resistance until the waves dictate the end. Erosion as a structural challenge. Of course, there is a lot more. Cities such as Miami, Barcelona or the Australian Gold Coast face constant sand losses that threaten their beaches, vital for tourism and local economy. In Barcelona, erosion annual 30,000 m³ It is aggravated with each temporary, and although dikes and breakwaters have been added, the setback continues. In the Gold CoastCyclone Alfred in March started so much sand that left stretches of the retaining wall; Restoring the coast will cost three years and 40 million Australian dollars. The dilemma It is global: 10% of the population lives less than 5 km of the coast and urbanization slows the natural flows of sand, aggravating the problem. Rodanthe Steal sand. And yes, even scientists already They have warned On several occasions that sustaining beaches artificially is increasingly difficult and extremely expensive, and that in some cases it would be more sensible to allow the coastline to migrate inland, although socially and politically complex. Gold Coast The dilemma of providing sand. Regeneration It has advantages in front of rigid structures such as retaining walls, which can intensify erosion in adjacent areas. However, it is temporary and its duration depends on local geology, climate and human pressure: some beaches require new contributions every two years, others last a decade. In the United States, where it has been applied for a century, they have been treated almost 600 beachesreaching a maximum of 50 million m³ in 2019. The problem? That the search for proper sand It is complicated: In North Carolina, local reserves are exhausted, in Miami transport is used from inside, and environmental objections, such as marine habitats, delay projects. Plus: Powerful storms can erase millionaire investments. Perspectives and answers. In places with moderate erosion or abundant reserves, such as the Netherlands, regeneration is a State policy: The country invests the 0.3% of your GDP Annual in flood risk management and has 12 million m³ of sand available every year, sufficient to protect entire cities. On the other hand, in areas with severe erosion and overflowing costs, planned withdrawal can be the only viable output, implying controlled expropriations and demolitions. The Times told that in Rodanthe, the National Parks Service acquired and demolished two houses valued in millions to return the land to public use, but There are no funds For more purchases. Many residents, aware of living in the “land of changing sands”, assume that the sea will gain ground and prepare to sell when the water reaches wetlands. Battle against time (and economy). In short, the Sand scarcityits increase and the increase in coastal erosion draw a future in which to keep the current beaches looks like it is unfeasible for many communities. Although Regeneration It remains the preferred option to protect local properties and economies, its physical, financial and environmental limits. rethink strategies. The dilemma between spending more and more to contain the sea or yield terrain to nature will mark the future of much of the inhabited coasts, and the margin of maneuver is narrowed as the climate and the demand for sand accelerate the process. Image | Pxhere, Public Domaine, Petra In Xataka | Xàbia set out to end cao chaos and bathers in his most famous coves. Did not go as expected In Xataka | There is only something more abundant than tourists on Spanish beaches: Asian algae are becoming a huge problem

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