problem

We have been blaming hygiene for our allergies for almost 40 years. Ancestral DNA has just shown that the problem is more complex

by

Every time a child develops a asthmarhinitis or eczema, one of the questions we ask ourselves is why it happens, and one of the ‘culprits’ we point to is excess cleaning. Right now it is a reality that we live in environments that are too neat, using disinfectant gel all the time and not letting the little ones play in the mud because logically they can get stained. However, science here has ‘traveled’ to the past to find out the origin of allergies. What have they done? Here two new and massive studies based on the analysis of prehistoric DNA are putting the famous “hygiene hypothesis“And the paradigm we face now is that the evolutionary adaptations that our immune system has developed over the last 10,000 years to survive pandemics, curiously, are designed to protect you from allergies, not to cause them. A return to the past. To understand the plot twist, we must go back to 1989 where epidemiologist David Strachan proposed the hygiene hypothesis. Here it was proposed that the lack of exposure to microbes during childhood in most modern societies deregulated the immune system, since it literally did not grow with good training under its belt. In this way, it was proposed that, by not having real pathogens to fight against, the body created an imbalance that caused the immune system itself to attack substances that are not actually a threat, such as pollen or mites. And it seemed to make sense. A genetic journey. The first blow to this hypothesis has been dealt by a great published research in Nature this same month of April. Here the researchers analyzed almost 16,000 ancient genomes from individuals who lived thousands of years ago. What they discovered here is that the transition to agriculture in the Neolithic changed everything, since human societies became dense, we began to coexist closely with animals and, with this, large-scale infectious diseases arrived. But these pathogens that we began to face, despite the many deaths they generated, also favored hundreds of immune variants to ensure our own survival. But there is more. This is where parallel research that is revolutionizing our understanding of asthma and autoimmunity comes into play. Here is an article preprint has crossed ancient DNA with the modern complete genome with the aim of looking for differences between our DNA and that of our ancestors. Logic dictated that a system “revolutionized” by evolution to fight bacterial and viral infections of the past would be the cause of today’s allergies. But the data show exactly the opposite, as the study reveals that genetic variants that were positively selected in recent millennia have strengthened defenses in “barrier tissues” such as the intestine, against pathogens, but at the same time reduce allergic inflammation. The variants. Among these defense genes We have, for example, LYZ, which codes for lysozine, a fundamental antimicrobial enzyme in our secretions that destroys part of the bacteria. We also have FUT6, which is involved in protein fucosylation, a process vital to the interaction between our mucosal immune system and the gut microbiome. Why are we allergic, then? If our genetics have been evolving for 10,000 years to protect us from allergies in the lungs and intestines, the question is inevitable: why do cases continue to increase? Here science suggests that the problem is not simply an excess of cleaning in the present, but a profound imbalance. In this way, we do not need to catch diseases or live surrounded by human society, but the problem is that our immune system, genetically adapted to the strong pathogenic pressures of the first agricultural societies, expects to encounter a series of commensal microbes in the environment. The ‘problem’ is that these microbes are no longer present in modern cities and that is why the genes we have with a protective function cannot do their job correctly. Images | Drazen Zigic on Freepik In Xataka | The allergy season in Spain has been extended by 25 days since the 90s. And 2026 brings very bad news about it

China is filling up with products from Russia. The problem is that many of these products come from China itself.

by

At the beginning of 2025, a more than notable event occurred in China. Apparently, trade tensions between Beijing and the EU had opened a new scenario for Russian livestock farmers. In other words, if Spain had made a fortune exporting pork to China, an unexpected enemy appeared on the horizon: Russia. It seems that the hype of Moscow goes much further than “its” pig, and in 2026 has been maintained. Russian Chinese stores. Yes, in recent years a situation has been occurring that no one saw coming: the proliferation of stores selling Russian products in cities throughout China, generating great interest among consumers. These establishments, easily recognizable by their signs in Cyrillic, traditional Russian music such as Kalinka and Katyusha, and/or the display of iconic products such as matryoshka dolls, offer a variety of products: from national sausages to chocolates, honey, vodka or durian confectionery. Thus, with slogans such as “hardcore products” and a blue and white aesthetic, the stores seek to evoke the essence of Moscow. However, as we will see, behind this facade many are more Chinese than they look. The figures. The boom has also coincided with an increase in commercial ties between China and Russia, driven by Western sanctions on Moscow after its invasion of Ukraine, the same ones that have led to Russian ranchers in the Asian nation. Not only that. Bilateral trade reached historic levels in 2022 and 2023and Chinese consumers responded enthusiastically, seeing these products as a way to show solidarity with Russia. According to data from the Qichacha business registry, In January 2025 there were 3,555 companies registered in China engaged in the trade of Russian productswith 696 and 894 new companies registered in 2023 and 2024, respectively. They are not Russian, they are Chinese. Of course, the boom also raised suspicions. In fact, the boom faced increasing scrutiny last year. Many consumers began to question the authenticity of the products offered. Sausages, for example, cannot be legally imported from Russiaand the durian, a tropical fruit, is not typical of Russian regions as far as we know. This led Chinese authorities to investigate some of these stores. For example in Fujian, where a Russian market was pointed out for promoting false health benefits and labeling domestic foods as imported. In Beijing, similar stores closed after several inspections that required proof of the authenticity of their products. In fact, in 2025 the Shanghai authorities announced investigations against seven of the 47 Russian themed stores of the city, accusing them of misleading customers regarding the origin of their products. Some were closedwhile others faced fines and the obligation to clearly label products…made in China. Finally, a Jiemian News investigation revealed that a large part of the food products in the so-called “Russian State Houses” (franchises with no connection to the Russian government) They were locally produced.. Factors of interest. The initial success of these markets and establishments can be attributed to several factors. On the one hand, consumers’ curiosity and desire to explore “exotic” productssomething that has surely played an important role. On the other hand, the geopolitical narrative surely also did its thing: the war in ukraine and tensions with the West caused some Chinese consumers to view consumption of Russian products as a gesture of political support. Furthermore, we must not forget that the increase in bilateral trade was facilitated by the exclusion of Russia from the Swift financial system in 2022forcing the country to become more dependent on the Chinese yuan. This made China Russia’s main trading partner, absorbing products such as oil, gas and food at reduced prices. With an expiration date? The big question. Despite the boom, analysts like Zhang Yi, of iiMedia Research, They believe that the fashion will be temporaryalthough in 2026 they remain patent. The demand for Russian products in the Asian nation is based, a priori, on this novelty and perceived scarcity. Among the causes of the decline are that consumers have lost interest or competition between stores increases, at which time the popularity of these markets will probably decrease. This, added to the increasing doubts about the authenticity of the products Following investigations and regulatory pressure, they could accelerate their decline. Be that as it may, and in the face of growing skepticism, in Shanghai Some stores have changed their names to “Chinese-Russian Mutual Trade Stores” to reflect the true origin of their products. In Beijing, at least one store closed after failing to present documentation proving the authenticity of their imports. Long-term perspectives. Although trade between China and Russia still strongexperts predict that exchange volume could stabilize at $200 billiona figure lower than recent records. In the long term, a change in geopolitical relations, such as the resolution of the conflict in Ukraine, could allow Russia to normalize its trade ties with Europe, thereby reducing its dependence on China. Of course, this last scenario now seems very far away. Be that as it may, the rise of markets for Russian products in China reflects how geopolitical dynamics can influence consumer habits, at least in part. Of course, its sustainability is most uncertain due to the combination of regulatory pressures, doubts about the authenticity of the products and the eventual loss of consumer interest. Just in case, to the Russians they will always have the pork. Image | Weibo In Xataka | The biggest change in war is no longer drones: it is that Russia, the US and China are removing the human from the button In Xataka | Russia and China already had an advantage over the US in the Arctic. After Greenland, it has multiplied A version of this topic was published in 2025. We have updated it with information from 2026

The closure of Hormuz is the symptom of a much more threatening problem: the straits are no longer reliable

by

The world watches the Strait of Hormuz waiting for a sign of normality that does not come. After weeks of conflict, the official “reopening” narrative faces a devastating mathematical and logistical reality. What we are witnessing is not a temporary blip in trade, but, as experts warnthe confirmation that the system of “bottlenecks” that supported the global economy has been definitively broken. At first glance, the news of a ceasefire and the “reopening” of Hormuz should have reassured the markets. However, the reality on the ground is very different. Cyril Widdershoven, analyst OilPricedescribes this supposed normality as a “mirage.” While under normal conditions the strait registers between 120 and 140 daily transits, data from April 2026 show days with just three boats. Why don’t we see the total disaster on our streets yet? The answer lies in the physics of shipping. As we have already explaineda supertanker moves at the speed of a bicycle. The crude oil we consume today is the one that “pedaled” through the ocean before the conflict broke out. According to the data of Kpler206 million barrels have already “vanished” from the market in just 40 days. Logistical inertia has kept us in a false calm, but the shock wave is about to reach us. The report of Center for Strategic and International Studies (CSIS)titled “The Strait of Hormuz in 8 Charts“, confirms that the strait has been “effectively closed” since March 2. Although Tehran announced an opening on April 17, the Revolutionary Guard (IRGC) turned back just 24 hours later, threatening to attack any ship that collaborates with “the enemy.” In Xataka It is true that we have not yet noticed 100% the effect of the closure of Hormuz. The reasons are not at all optimistic The end of trust and the petrodollar What makes this crisis different from Suez is the trust factor. Analyst Widdershoven points out that the system It is not broken by geography, but by the perception of risk. When insurers withdraw “war risk” coverage, the strait ceases to exist economically, even though it is physically open. But the impact goes beyond the price of gasoline. Aaron Brown, in Bloombergissues a historic warning: “The war in Iran has just broken the petrodollar.” The 1974 pact, where the US guaranteed security in the Gulf in exchange for oil being sold in dollars and that money being reinvested in US debt, has collapsed. Countries like India or Türkiye are selling their US Treasury bonds to obtain liquidity and pay for increasingly expensive crude oil. For the first time in decades, central banks hold more gold than US bonds. Even if full peace were signed tomorrow, a return to normality is a technical chimera. Jacob Judah, in Financial Timesdescribes a “demining nightmare.” Iran has seeded the strait with sophisticated mines that can be camouflaged as rocks or buried in the seabed. Clearing a safe lane just a mile wide could take weeks; clear the strait completely, months. And, as Judah points out, the US Navy has neglected its mine warfare capability for decades. On the other hand, the recovery capacity of inventories is discouraging. Fatih Birol, director of the IEA, has declared to Reuters that this crisis is “more serious than those of 1973, 1979 and 2022 combined.” The IEA report from April estimates the collapse of global supply at 10.1 million of barrels daily. However, even producing an extra million barrels a day, it will take the world two years to recover pre-conflict inventory levels. Terrestrial alternatives are not the solution either. According to Holly Ellyatt for the CNBCthe pipelines that cross Saudi Arabia (East-West) and the UAE (Fujairah) only have the capacity to absorb between 3.5 and 5.5 million barrels per day, a fraction of the 20 million that normally flow through Hormuz. Behind the barrel numbers there is an invisible human drama. Wired tells the situation of 20,000 sailors trapped in the Gulf. Stories like that of PK Vijay, an Indian sailor on an abandoned ship, show how the complexity of maritime registration leaves workers in legal limbo, without pay and without the possibility of disembarking in a war zone. On a legal level, the situation is just as swampy. As the West condemns Iran, Maryam Jamshidi in The Nation argues that, technically, the US and Israel are the ones who have violated international law with their “war of aggression.” Iran, having not ratified the United Nations Convention on the Law of the Sea (UNCLOS), has a legal basis to regulate passage through its territorial waters and collect tolls, something that Western powers describe as “economic hostage-taking.” {“videoId”:”x8j6422″,”autoplay”:false,”title”:”Declassified video of the clash between Russian fighters and the American drone”, “tag”:”united states”, “duration”:”42″} Suez was the warning, but Hormuz is confirmation that the era of just-in-time logistics and cheap, frictionless energy is over. The global economy has discovered, in the worst possible way, that its heart continues to beat to the rhythm of slow ships. As the analysis concludes OilPriceHormuz is no longer just a step; It is a tectonic fault. The world that emerges from this crisis will be one of “resilience over efficiency”, where trade will be more regional, more redundant and, inevitably, much more expensive. The price of security has become permanently embedded in the price of oil, and with it, the future of the world economy. Image |NASA GSFC Xataka |The US resurrected the “right of prey” to capture a ship from China: the problem is that China has taken note (function() { window._JS_MODULES = window._JS_MODULES || {}; var headElement = document.getElementsByTagName(‘head’)(0); if (_JS_MODULES.instagram) { var instagramScript = document.createElement(‘script’); instagramScript.src=”https://platform.instagram.com/en_US/embeds.js”; instagramScript.async = true; instagramScript.defer = true; headElement.appendChild(instagramScript); – The news The closure of Hormuz is the symptom of a much more threatening problem: the straits are no longer reliable was originally published in Xataka by Alba Otero .

The problem is that China has taken note

by

In the middle of World War II, several neutral merchant ships crossing the Atlantic were intercepted and diverted to British ports without being sunk, where specialized judges They decided their destiny weeks later. That almost bureaucratic process converted each capture in a legal matter as well as military. The return of a buried law. Last week we count how the capture of the ship M/V Touska by the United States in the Gulf of Oman, an action that has returned to the foreground a legal tool that had been out of the real debate for decades: the right of prey. This mechanism allows intercepting and, if is legally validatedappropriating civilian ships in the context of war, something that had not been applied in a relevant way since the mid-20th century. The operation is not limited to a specific military action, it introduces a change in how control over maritime trade can be exercised in an open conflict. What it really means. This legal framework is activated only in war situations and establishes that a ship can be captured if you violate a locktransports material useful to the enemy or refuses to be inspected. After capture, the ship is taken to a port under the control of the captor and subjected to a specific judicial process. Finally, if the court considers that the seizure is legitimate, the ship and its cargo pass into the hands of the State that intercepted it, turning a naval operation into a tool with direct economic consequences. How it was used in the past. During World War II, these types of regulations were part from normal operation of naval warfare. The powers involved intercepted merchant ships on the high seas to prevent supply to the enemyespecially on strategic Atlantic routes. Many of these ships were taken to controlled ports and subjected to prize courts, which decided whether they should be confiscated, released or destroyed. The system allowed the opponent to be weakened no need to sink all ships, integrating the legal dimension into military strategy. The British ship HMS Blanche towing the French frigate Pique, after having captured it Aiming beyond Iran. It happens, chow we explainthat the case of Touska acquires greater relevance due to its journey and its connections. Your route from Asia to Iranwith stops in Chinese ports, has introduced a third actor into the equation, elevating the significance of the capture. In fact and as trump hintedthe possibility that it was transporting material linked to China has turned the operation into a broader message about controlling trade routes in a war environment, where each interception can have additional diplomatic implications. From blocking to economic tool. Applying this framework not only allows stopping traffic to a country, it also opens the door to appropriate resources that circulate in that system. This introduces an additional incentive into naval warfare and modifies the behavior of external actors. Who is it? From shipping companies, to insurers and states that operate on these routes, they must recalculate risks, which can translate in route changesincreased costs and greater uncertainty in international trade. Notice to sailors. There is no doubt, the immediate impact extends beyond the captured ship. The possibility of losing an entire ship, along with its cargo, changes perception of risk for operators who until now moved in a more predictable terrain. Countries that offer flags of convenience or companies that work in gray areas may find themselves dragged into complex legal processeswhich adds pressure to avoid any links to routes or destinations under blockage. The boomerang effect. Not only that. He United States movement It introduces a dynamic that it does not completely control, because by recovering this doctrine, it establishes a precedent that other actors can use in future scenarios. Here are names of powers with great maritime and commercial capacity, like chinawhich have the necessary volume to apply similar measures if the context allows it. This opens a new potential front where the maritime interdiction It can escalate beyond a regional conflict. The sea as a battlefield. Ultimately, the Touska case marks something deeper than the capture of a single vessel. It signals a possible transition towards a model where naval warfare combines military force and legal tools of the past to influence global trade. In that scenario where “pirate” jargon seems have a revivaleach operation is no longer isolated and becomes part of a chain of decisions that can be replicated in different parts of the planet, expanding the scope of conflicts and giving a twist to what was understood by the rules of the game at sea. Image | NAVCENT Public Affairs, Robert Dodd In Xataka | Now we know that the Iranian Air Force did to the US what Ukraine could not do to Russia with drones: an abysmal hole In Xataka | If the war resumes again, the US runs a risk unprecedented in the history of war: that the only one with missiles will be Iran.

A young man has solved a mathematical problem that lasted 60 years in 80 minutes with ChatGPT. That’s the least interesting thing about the story.

by

He is 23 years old, his name is Liam Price and he has no advanced mathematical training. Even so, a few days ago he opened the Erdös problem websitepicked one at random and pasted it into ChatGPT. I didn’t know the history of the problem or who had tried it before. What he received back seemed like a good solution, and after consulting with a friend who was studying mathematics, the two realized they might be on to something special. A few hours later Terence Tao, one of the most renowned mathematicians in the world, confirmed that problem #1196 of Erdös, a conjecture about primitive sets of integers that had not been solved since 1966, had a solution. I had found her GPT-5.4 Pro in just 80 minutes. Not like that. This problem analyzed a question about the behavior of a particular mathematical sum on primitive sets, that is, sets of integers where none divides the other, when those numbers become very large. Jared Lichtman, a Stanford mathematician, had spent years on the problem and had made partial progress, but he and those who had tried before were starting from the same starting point that seemed like the right path. A novel idea. GPT-5.4 used another starting point. He stayed in the airmetic terrain and used a special function called von Mangoldt functiona classic tool of number theory known for its connections to prime numbers and Riemann zeta function. No one had thought about that approach to the problem, and as Lichtman explained when talking about the OpenAI model solution, “The LLM took a completely different route.” The achievement is real, but with nuances. Litchman praised the proposed solution by GPT-5.4, but there is one detail that has been omitted in many comments on this event: the raw output of ChatGPT was, in the words of this mathematician, “pretty poor.” This solution made it necessary for several experts to interpret it, detail it and extract from it the underlying idea that allowed the conjecture to be solved. Price didn’t know he had the solution until his friend read it, and he wasn’t sure until Tao confirmed it. The official repository of AI contributions to Erdös problemsmaintained by Tao himself on GitHub, classify the result as a solution generated in human-AI collaboration, not as a solution developed solely by AI. The distinction is important. A previous scandal. A few weeks ago Sebastien Bubeck, a researcher at OpenAI, posted on X that GPT-5 had “solved” several Erdös problems. That publication exceeded 100,000 views, but the mathematical community and also that surrounding the AI ​​industry criticized that statement. Demis Hassabis, CEO of DeepMind, called that statement “shameful.” What had actually happened is that the model I had found solutions to already solved problems on the web. Bubeck finished deleting the original tweet and tried to back down, but all this raised doubts about the validity of the application of AI to solve mathematical problems. AI and the mathematical success rate. Terence Tao and Nat Sothanaphan maintain the aforementioned record of all AI contributions to Erdös problems on GitHub. Each of the entries in that list or table is classified with a traffic light: green for complete solution, yellow for partial progress, and red for failure. In the category of completely AI-generated solutions with no known prior literature there are three green, fourteen yellow, and eight red traffic lights. However, the repository itself adds a unique comment: those who try to use AI to solve these problems and fail do not usually report it, so it is likely that AI has been applied “silently” to a large number of these problems without success, and those attempts do not appear in any table. There is a clear bias here because only successes generate headlines. Trying to measure what matters. In February 2026, eleven mathematicians created the initiative “First Proof“. In it they included ten mathematical problems that arose naturally in their research projects. For each one they included encrypted answers uploaded to a verification site, and they gave the AI ​​systems a week to try to solve those problems that had never appeared in any training data set. Preliminary results indicate that today AI models cannot overcome that barrier autonomously, and what happens is that there are still limits to what AI can really contribute in mathematics. But then, is there a revolution or not? Terence Tao offered a clear explanation as to why GPT-5.4 had succeeded where others had failed for 60 years. What had happened was what he described as a collective blockage of the mathematical community, because everyone started from the same origin because it was “the natural one”, the one marked by tradition. The AI ​​didn’t know that was the “correct” way to start, and that ignorance turned out to be an advantage. It’s not that the AI ​​was smarter, it’s that it had no biases about how to approach the problem. Now it remains to be seen if this novel way of trying to solve problems in unorthodox ways works. This will confirm whether what happened with Erdös’s problem number 1196 was an isolated case or whether a 23-year-old boy has managed to change our vision of how to tackle mathematical problems. Image | Universal Pictures In Xataka | There is a mathematically perfect way to cut a ham and cheese sandwich and it has been discussed since 1938.

Sudden death has increased by 30% in Europe. In Spain the problem is even more serious and silent

by

It arrives without warning, unexpectedly and in most cases with a fulminant cardiac origin that leaves patients on the ground in a few seconds and without the ability to respond. These are some of the characteristics that the sudden deathwhich has always been one of the biggest challenges for emergency medicine and that we must increasingly take into account because cases do not stop increasing. And especially in Spain. A new trend. A large study recently published in the journal The Lancent has put figures to this silent reality, pointing out that mortality records in the last decade have increased by 30% in Europe, and the trend in Spain exceeds the European average. How it has been seen. To understand the magnitude of this finding, we must look at the methodology that the research team has followed, which has taken as a source of data from the WHO that come from 26 European countries between 2010 and 2020. In this period, more than 53 million deaths were recorded from many different causes, and of these 2,583,559 were classified as sudden deaths. It is not a minor figure, since this means that almost 5% of the total deaths in that decade fall into this category. And if we look back, we observe an average annual increase of 2.9% in Europe, although if we focus on Spain, this increase rises to 3.3%. It’s not COVID. Seeing that the study ends in 2020 and automatically blaming Covid and the vaccines that were administered is something that may be an idea that many have in their heads, but the truth is that it has nothing to do with it, since the upward trend had already been consolidated since 2013. Which is the culprit. There are several hypotheses on the table here, one of them being the aging of the population, which is much more vulnerable to fatal cardiovascular events. But age is not the main problem, since cardiovascular risk is conferred by having a poor lifestyle that includes a sedentary lifestyle, obesity, hypertension or diabetes, which continue to be silent pandemics that prepare the ground for heart failure. It is also important to highlight that the difference between various countries depends on the effectiveness of health systems, ambulance response times and, above all, the availability of defibrillators (AED) and CPR training of the general population. The latter is something in which Spain is not as aware as in other European countries, where a good part of the population knows how to act in the event of cardiac arrest if it occurs in the middle of the street. Causes depending on age. In the case of the under 35 years oldthe cause is usually a genetic or structural failure that has not been previously detected, predominating electrical alterations of the heart such as the famous Brugada syndrome. The problem is that many times the patient does not present symptoms until the onset of sudden cardiac arrest, having already seen cases in our country in very young people who, for example, They play soccer and suddenly fall on the field. In people over 35 years of age the origin changes and here lifestyle and wear and tear prevail, with acute myocardial infarction causing the vast majority of cardiorespiratory arrests. The Spanish context. The data provided by The Lancent study fit perfectly with the demographic and health puzzle of our country, since if we go to the INE we see that heart diseases (along with oncological diseases) are responsible for half of the deaths in Spain. And although the INE points out that in 2024 deaths from circulatory diseases decreased by 2.4% globally, entities such as the Spanish Society of Epidemiology and Cardioalianza remember an uncomfortable truth: Ischemic heart diseases continue to be the leading single cause of death in Spain. How to improve. The European study does not seek to create alarmism, but rather to light an emergency beacon in terms of public health. Stopping this 30% increase does not involve a magic pill, but rather a dual approach: improving early diagnosis in young people with a family history and, above all, filling our streets with defibrillators and citizens who know how to do cardiac massage. And, in absolute terms, cardiorespiratory arrest is a time-dependent process, meaning that every minute that passes without the patient receiving assistance translates into 10% less chance for your heart to beat again. This makes in 10 minutes It is almost impossible for a patient who has suffered an arrest and who does not receive CPR to come back to life, and this should make us aware of how important it is to know the basics of CPR, since it can truly save many lives. Images | wayhomestudio on Freepik In Xataka | We thought the marathon was heartbreaking. The largest medical follow-up to date has just settled the debate

China already knows how to keep a fleet of drones in the air indefinitely. The problem is that there are too many problems

by

Wireless charging in everyday devices It is a resource that provides comfort. In other areas, wireless and remote charging implies a much more powerful advantage: supremacy over a rival. That is precisely what China is testing, how to maintain a drone fleet flying almost indefinitely thanks to a microwave charge injected from a ground system. And they are not the only ones. In short. A few days ago, Chinese scientists from Xidian University published a peer-reviewed article in the journal Aeronautical Science & Technology in which they presented a system microwave emitter that could send energy to an array of antennas installed on the top of a drone to charge the vehicle’s battery in mid-flight. The most important thing is that it works while the ground vehicle and the drone are moving, which eliminates the need for a stationary charge that would make no sense from a strategic point of view. Image of Xidian University How it works. For the system to work, and as we read in SCMPthe researchers integrated a GPS positioning system that allowed a drone and a ground vehicle to be aligned. On the ground there is the microwave emitter and the drone has a series of antennas at the bottom that collect the energy. In tests, the system kept fixed-wing drones in the air for up to 3.1 hours at an altitude of 15 meters. The great challenge was maintaining the alignment between the drone and the ground vehicle to maximize the load, but once the obstacle with the GPS system was overcome, the drone can stay in the air depending only on the vehicle’s fuel. On the other hand, we are approaching it from the point of view of indefinite autonomy, but such a system would also allow drones to have less battery (which, in the end, adds weight) and have more carrying capacity. The BIG asterisk. Defense analysts liken it to a “land-based aircraft carrier” in which an armored vehicle on the ground is both the command and power node, monitoring, charging and providing logistical support to the drones in a manner similar to that of a aircraft carrier It is the lifeline of manned fighters. However, the system has a huge problem: it is extremely inefficient. The Xidian team estimates that the efficiency of the microwave ‘cannon’ is between 3 and 5%. It’s… ridiculous, which means that the vast majority of the energy emitted is simply wasted. Why not a laser? It’s the big question. A laser system is more precise and has a longer range, which opens the doors to other types of missions. However, being a beam of light and not directly the energy that we launch, the laser is very sensitive to interference such as fog and dust. Also, think of the laser as a precision rifle and the microwave as a shotgun: any turbulence or bump in the road would affect the beam, but microwave energy has a wider range of action. China is not alone. Chinese analysts point out that it is a promising concept, but also something that is very far from being able to be applied to satisfy an immediate operational need. What it is, is one more step to find that way to get those drones that are appearing to be a very valuable element on the battlefield, as the wars in Ukraine and Iran, unfortunately, are demonstrating. The advance is important because Xidian has time working in the theoretical framework of the technology, but it is now that they have carried out a successful field test. Now, they are not alone, since the American agency DARPA is experimenting with radio frequency and laser to charge drones remotely, and in Germany, Rheinmetall is also developing wireless charging platforms for unmanned ground vehicles, although in this case, the drones are perched on a platform. In Xataka | Sending electricity without cables seemed like a thing of the future. DARPA has done it again, and the test has turned out better than expected

Madrid has the key mineral underground so that Europe does not depend on China. The problem is that there is a gap above

by

Under the soil of Madrid lies a strategic resource that Europe desperately needs to reduce its technological dependence on China. To ensure this supply, the regional government has decided to make a move and protect the future of the Tolsadeco mine. The plan. As they progress in Europe Pressthe Community of Madrid finalizes the procedures to extend until 2037 the mining concession located between the districts of Vicálvaro and San Blas-Canillejas. It is about reactivating an open-air exploitation that has been paralyzed since 2007, with the aim of not losing access to the last reserves of a material critical for the industrial autonomy of the continent. A simple absorber or the future of the electric car? Although it is traditionally known for its domestic use as an absorbent material—especially in pet litter—sepiolite is today a very high-tech mineral. According to Europa Press citing the Elcano Royal InstituteSpain is the only European producer of this material, placing it as an extractive singularity of the country. In fact, the processing factory located in Vallecas transforms about 400,000 tons per year out of a global production estimated at 600,000. The strategic importance. High purity sepiolite is the basis of flame retardant additives essential for the cable, pipe, automotive and construction industries. These components allow Europe to replace antimony oxide, a raw material that is today imported almost exclusively from China. Furthermore, the mineral is the core of the project MADBATa Madrid initiative to develop high-performance electrodes for electric vehicle batteries. The economic impact projected by the concessionaire company, Tolsa, is ambitious: a turnover of 113 million euros, with more than 53 million destined for international export. The emptying of the water and the promise for 2037. To resume extraction, the first step will be to evacuate the water accumulated during two decades of inactivity. The Ministry of Economy defends this intervention under an argument that transcends the industry: citizen safety. The regional administration emphasizes that it is not a natural lagoon, but rather a deep mining hole with clay soils that, as they warn in their reports, act like “quicksand.” Despite the fences and signage, the place has become a recurring clandestine bathing point. Tragedy has struck this enclave on several occasions: since 2012, three people have lost their lives due to drowning in these waters, including the death of a minor in June 2021, according to the files of Europa Press. Given this danger, the Community of Madrid promises that, upon completion of exploitation in 2037, the area will be restored through a “safe and planned reconfiguration” that will create new controlled lagoons. The clash with the neighbors: the destruction of an ecosystem. However, the reactivation plan clashes head-on with neighborhood and environmental opposition. The Regional Federation of Neighborhood Associations of Madrid (FRAVM) and various groups have denounced, in statements spread by Europa Pressthat the work will mean the “destruction of the Laguna Grande.” The associations deny the official version about the origin of the water, ensuring that it has a phreatic character and is connected to a deep aquifer. In addition, they warn about the impact on biodiversity—especially in breeding colonies of the sapper planea protected bird—and about the proximity of mining activity to homes, sports facilities and educational centers. For organizations like Ecologistas en Acción and SEO/BirdLife, This extension is a bucket of cold water: postpone sine die the long-awaited project of converting the Ambroz environment into a large “Eastern Country House”, integrated into the Metropolitan Forest. The groups have not been slow to react: they are already preparing allegations and keeping open the possibility of taking legal action. The price of European autonomy. The Ambroz lagoons conflict perfectly illustrates one of the great industrial and environmental crossroads of the present. On the one hand, the undeniable geopolitical need for Europe to secure strategic materials to lead the energy transition and stop the Asian monopoly. On the other hand, the high ecological cost that this strategy requires at the local level. Madrid has decided to shield its sepiolite mine in favor of the technology industry, but the price to pay will be to empty – at least for the next decade – the oasis that nature had silently claimed in the southeast of the capital. Image | freepik Xataka | From devouring diesel to being 100% electric: the incredible transformation of a 650-ton mining excavator in India

The US has just freed eight women that Iran was going to execute. The problem is that Iran says they were generated by AI

by

Sometimes, an image can trigger unexpected consequences in international politics. During the Kosovo war, at the end of the nineties, a photograph released no clear context on alleged civilian victims provoked immediate reactions from governments and international organizations before their true origin could be verified. That episode left a lesson that is still valid: in high-tension scenarios, the impact of a story can be as fast as the difficulty to check if it’s true. Two versions for the same photos. The episode begins two days ago with Donald Trump asking through your social network Iran to stop the execution of eight women arrested after the protests, he also does so by publishing the image of the eight women, an anomalous situation that, coincidence or not, in a matter of hours takes a radical turn when Trump himself goes on to affirm who has achieved it. According to their version, some would be released and others would receive light sentences, presenting it as a gesture of good will before the alleged new negotiations. The problem: that from the beginning there is no verifiable data clear about their identities or their judicial situation, which leaves the story supported by information that is, at the very least, incomplete. Iran not only denies it, it dismantles the story. The Iranian response could not be more direct: There were no planned executions. They assure that some of the women were already free and that the rest, if convicted, would only face prison sentences. In addition, they accuse Trump of relying on false information and trying to build political success without a real basis. The shock quickly moves from the facts to the credibility of the person telling them. The leap into confusion. The situation escalates towards complete surrealism when Iranian official channels of their different embassies go one step further and affirm that part of the images released would have been generated with artificial intelligence. At that point, the discussion stops being whether they were going to be executed or not, and begins to question whether some of the protagonists exist as they have been presented, or if they simply exist. This change introduces such a crazy level of uncertainty and propaganda that it makes it very difficult to verify how much of the story is real. A real context that does not disappear. Be that as it may, and despite the confusion, the environment in which it occurs is documented. I remembered the Times newspaper that, after the protests in Iran, there are thousands of detainees and reports of unfair trials. In fact, there are human rights organizations that executions have been reported recent events and the use of the death penalty as a pressure tool. This means that, although this specific case is doubtful, the underlying problem is still relevant. Propaganda faster than facts. In any case, what we see is not new in a war, far from it. Throughout recent conflicts, several stories have shown how narrative can prevail over verification. For example, during the invasion of Kuwait in 1990, the testimony of a young woman known as “Nayirah,” who reported alleged crimes in hospitals, influenced international public opinion before it was learned that he was linked to a public relations campaign. In the 2003 Iraq war, claims about weapons of mass destruction marked strategic decisions no conclusive evidenceand in the Ukraine conflict, narratives such as of the “Ghost of kyiv” or some viral videos spread on networks became popular quickly before to be qualified or denied. In all cases, the pattern repeats itself: in war environments, political and emotional urgency accelerates the spread of stories that can influence real decisions long before their veracity is confirmed. Strategic tension that sets the pace. Of course, all of this occurs while continuing the pressure in the Strait of Hormuz, with attacks on ships and blockade of ports despite the ceasefire. Iran has conditioned any progress on lifting that blockade, while the United States maintains it as a pressure tool. And in that context, the episode of the eight women It is not isolated: it is an essential part of a scenario where the political narrative and the situation on the ground always advance in parallel. Image | Trump Social, Nara In Xataka | Europe has gotten down to work on one of its biggest geopolitical challenges: opening Hormuz without help from the US In Xataka | Iran has 300 internal reports where it models the war against the US. They are all based on the same thing: Ukraine

Mexico’s real problem is that it is warming three times faster than a century ago

by

Mexico is experiencing the first major consolidated heat episode of 2026 and there is more than 22 entities affected on the Pacific slope and the southeast. That’s highs of up to 45 degrees in a country that is warming up to three times faster than the last century. And, despite everything, no one seems too worried. Why would they be? Mexico closed 2025 with reservoirs at 72% and by April 15 only 12.3% of the territory is affected by drought. You only have to go to 2024 to find a spring with 76% of the country in a critical situation: no matter how much the heat is getting earlier, it is logical that no one takes it very seriously. Especially if we take into account that experts do not agree on the nature of the event. Once it has been ruled out that, technically, it is a ‘heat wave’; The National Weather Service says we talk about a ‘color wave’ and services like Meteored doubt whether that can even be talked about. The great Mexican mess. While the thermometers of Sinaloa, Durango, Nayarit, Guerrero, Michoacan, Chiapas and, occasionally, Jalisco will be placed above of 40 degrees; the rain will reach the eastern half of the country: It is a clear example that the asymmetry in how climate change affects Mexico means that the country begins to live in several seasons at the same time. And that is the central issue: Mexico is warming rapidly and that means innumerable problems. Heating up rapidly? According to the UNAM Climate Change Research Programbefore 2012 the warming rate per century was 1.9 degrees. Now that rate has catapulted to 3.5. This means that projections speak of 1.95 degrees only for 2026, while the average is 1.5. And El Niño is knocking on the doors. Therefore, the fact that there is water in the swamps does not solve anything: it simply makes us trust. But let’s talk about the problems. Because, although we do not usually emphasize it, heat has a direct impact on public health. Only in 2024 306 people died from heat stroke in Mexico. The fact that the heat is ahead is not good news. Above all, because as we already know, the hot Mexican season produces peak values ​​between April and May. In this way, it is reasonable to think that all this heat is nothing more than part of what is coming. Image | BenBaso | Xataka In Xataka | We are living in the hottest years on Earth and the consequences will be so severe that not even our grandchildren will see the end.

Log In

Forgot password?

Forgot password?

Enter your account data and we will send you a link to reset your password.

Your password reset link appears to be invalid or expired.

Log in

Privacy Policy

Add to Collection

No Collections

Here you'll find all collections you've created before.