Month: July 2025

Grok 4 destroys the tests and aims to be the most advanced AI model. The problem is that Elon Musk continues to sabotage his answers

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Xai has launched Grok 4its new artificial intelligence model that is sweeping the most demanding performance tests in the sector. The model exceeds OpenAi, Google and Anthropic proposals in multiple benchmarks. And is that in the absence of knowing OpenAI’s strategy with GPT-5At the moment it has all the ballots of being the most pointer the model. However, Grok continues to drag the usual problems: controversial responses, offensive content and an Elon Musk using the model to subtract credibility. The numbers speak alone. In the test Humanity’s last examconsidered one of the most difficult to measure abilities of AI, XAI states that Grok 4 has achieved 25.4% Without additional tools, surpassing O3 of Openai (21%) and Gemini 2.5 Pro from Google (21.6%). But it is with Grok 4 Heavy, its multiagente version, where the results shoot: according to the company, reaches 44.4% With ‘tools’, almost doubleing competition. Image: XAI In addition, at the benchmark ARC-AGI-2which measures the ability to solve complex visual patterns, Grok 4 has obtained 16.2%practically double the next commercial model. According to Musk“Grok 4 exceeds the doctoral level in all subjects, without exception”, an affirmation that, although it sounds to marketing, is supported by the results obtained. The revolutionary approach. Grok 4 Heavy works with A “multiple agents” system that work in parallel about the same problem, then comparing their results as if it were a study group. This architecture allows you to climb intelligence according to the available computational power, a concept that could redefine how we understand the AI ​​performance. Image: XAI The usual problems. The launch of Grok 4 occurs just after the previous version of the chatbot published anti -Semitic comments In X, even identifying as “Mechahitler” in some answers. XAI had to temporarily withdraw the service and eliminate offensive publications, while countries like Poland They announced complaints before the European Commission and Türkiye blocked access to chatbot. The cause was a modification in the system instructions that allowed the model “not to avoid politically incorrect statements.” Although Xai withdrew that guideline, the damage was already done. A constant sabotage. Despite these technical advances, Musk continues to condition Grok’s responses in ways that compromise their usefulness. The model performs automatic searches for the opinions of the tycoon in X to respond to controversial issues, turning the alleged search for “truth” into an echo of its creator’s ideas. This practice, confirmed By experts in AI like Carlos Santana, he once again demonstrates how Musk’s controversial decisions are directly influencing the development of the model. In addition, several researchers already They have managed to avoid Easily model safety barriers, making it generate content on chemical weapons, malicious software, drugs and other sensitive issues through relatively simple jailbreak techniques. Ethan Mollick, professor at Warton and an expert at AI, Point out The lack of transparency of the company: ‘There is no detailed technical documentation, risk analysis or explanations on how to avoid future incidents’. This opacity makes it difficult for companies to trust Grok for critical applications. Grok 4 prices. XAI Grok 4 Basic offers at a price of about 30 dollars a month. However, the company has also launched Supergrok Heavy, a subscription of $ 300 per month in which its most advanced model is offered and that directly becomes the most expensive market service on the market. What is coming. XAI plans to launch a programming model in August, multimodal agents in September and video generation in October. Also will integrate Grok 4 in Tesla vehicles Next week, expanding the scope of AI throughout the Musk ecosystem. The question is whether the company will separate the technical excellence of the media controversies that surround it, or if it will remain hostage of its founder’s impulsive decisions. Cover image | XAI In Xataka | We knew that AI would generate new jobs that did not exist before. What we did not expect is that he was fixing his pifias

The world is full of retirees that monitor works on the street. In Italy they are professionalizing and signing them

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It doesn’t matter if we talk about Madrid, Barcelona, ​​Vigo, Miranda del Ebro or the distant Lombardy. Where there is a work, an open ditch, a mason with helmet and shovel, a gardener Prunessing the cypresses of the park or a gruist A retiree supervising. His figure is almost universal, such as curiosity or the innate impulse to give advice that no one has asked. Now in A small town From Italy they have had a peculiar idea: why not take advantage of all that wasted talent? That is why they have professionalized their UMARELL. Work, who has said work? When one approaches a work, a series of elements expect to be found: masons, concrete, scaffolding, cranes, excavators … For a long time to that extensive list of professionals and useful something else is added: retirees that follow each shovel, banish or hammer with the attention of an orchestra director. It occurs in almost any Spanish city, it doesn’t matter if it is large or small. And occurs in other countries, Like Italywhere they occurred to them that it may not be far -fetched to take advantage of that ancient talent. With you, the UMARELL. In Italy they even have a name for retirees who move from work by work examining and giving advice, usually early in the morning, after breakfast, and in groups. They call them UMARELLa term coined in 2005 For the writer Danilo Masottiwho created him rescuing a dialectal word from his hometown, Bologna: Umarèl (“Little man”). The idea liked and has become popular until it sneaks into the dictionary in 2021. Over the years the figure of the UMARELL He has penetrated the Italian popular culture. A while ago in the town of Pescara they decided to open Windows In the fences that cover their works so that the elderly can appear to them and in 2016, in a wink to their growing popularity, Burger King included them in An advertising poster. The palm is taken, however, the City Council of Bologna, which in 2018 was a step further and dedicated a placePiazetta Degli Umoulls. Why not take advantage of them? Thus, a few months ago Villasanta, a small town of 14,000 inhabitants From the Lombardy region, in northern Italy, he had an idea: why not take advantage of the curiosity, experience and time of the UMARELL? Moreover, why not professionalize them and ‘sign’ the best? For that purpose At the end of last year The City Council launched a call that closed in early April and allowed it to create a small eight patrol UMARELLsix of the Villanta Yos de Monza itself. At the service of the people. In the bars bars, anyone can comment. In the team of UMARELL of Villasanta no. People selected by the Consistory meet certain requirements: they are retired, have university degrees and accumulate work experience in technical sectors thanks to their old jobs in fields such as architecture, engineering and topography. The goal? That your indications are, above all, good indications. The service provides it for free, without charging, although being registered in the Civic Volunteer Registry are covered by insurance. By becoming UMARELL Professionals also assume certain responsibilities. The Guardian details That each of the eight retirees (seven men and a woman) has a part of the assigned town and the work is organized in shifts between two and three hours. When one is missing, he coordinates with his companions to cover the vacancy. But … what do they do? Basically they increase the number of eyes and ears that the City Council has to supervise certain municipal works and services. During their turn each UMARELL It is responsible for visiting public works, checking the status of the streets and sidewalks and ‘supervising’ the maintenance of green areas. And that among other tasks. In April Euronews pointed out that the first mission entrusted to them by the City Council was to carry out traffic surveys. Thanks to them, the City Council can have a more precise control of public works, cleaning the streets and parking, the care of parks and other green areas or if the lighting and the garbage collection service works correctly. “Above all you feel useful for society and for yourself: you are doing something valuable with your time instead of sitting in front of TV or complaining, as the real ones do UMARELL“, Explain to The Guardian Roberto Cremona, one of the eight retirees who patrol the streets (and the works) of the town. Images | Wikipedia (Wittylama) and Salvatore Capalbi (Flickr) In Xataka | If your dream is to retire at age 52 with 100% of the pension, Spain offers you a road: a high -risk job

How to practice languages ​​using artificial intelligence

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Let’s tell you several ways in which you can Practicing languages ​​using artificial intelligence. These are several resources that you can use to improve your knowledge of the language, something for which you can use conventional AI models such as Chatgpt, COPILOT, Deepseek either Gemini among others, although at some point we will mention another tool of artificial intelligence. We are going to divide the article into several points, each of which is A different method to learn English. We do so because the needs of each person can vary, and it is not the same to want to practice a conversation than to test your knowledge or correct a writing. Use simulated conversations The first method is the simplest, You can tell Chatgpt to hold simulated conversations to make an exchange of messages in the language you decide. This will help you maintain daily or specific conversations for erales, and thus improve your fluidity speaking You can start with a Prompt as “Hello, act as a waiter in Paris. I want to practice how to ask for food in French.”and then start the exchange. Then you can also ask you to make grammatical corrections or suggestions to have more naturalness. Ask the AI ​​to correct a text Another thing you can do is write a text in the language you want. Then, You ask the AI ​​to make a correction To find errors. You can ask for it with a prompt like this: “I’m going to send you a text, and I want you to make me spelling and grammatical corrections, explaining the mistakes that there are. Also give me style suggestions so that it seems more natural,”. The thing is to write that request in Chatgpt, Gemini or a similar artificial intelligence, and when I tell you that you agree, that you hit the text, then you fight it whole and send it to it as if it were a message. The AI ​​will generate a list of errors and corrections well explained. You can do this even to improve your native language when writing. A bonus track is that you can Use extensions for computer or browser that correct errors based on artificial intelligence. The most important and reliable is that of DEPLa famous popular translator for being much better than Google’s, and who has applications for Windows and Mac, and also extensions that indicate when you write a text the mistakes you are making. Have spoken conversations Many AI chats already have free functions to maintain voice conversations, so that you listen to what you say and then answer. You can also do this to try Maintain a conversation in another languageasking him to make you corrections of your mistakes. For that, you can start the voice conversation by telling you something like “You are going to be my English teacher, and we will have a casual conversation in this language. But when I make a grammatical error you have to explain in Spanish”. And after this, just start talking. Ask for help with words and vocabulary You can simply ask the AI How are concrete words or phrases say In the language you want, one of the simplest aids. And then, the artificial intelligence bot will answer you and give you an explanation of possible meanings. You can also ask you to create a list and vocabulary for concrete issues, such as trips, businesses, meals, and so on. Thus, you can learn new words in the language you want. Ask for translations with explanation When you want to translate a topic, it is easy for you to simply turn to an ordinary translator and hit the result that gives you. However, you can also ask the AI ​​to do A translation with grammatical explanations. Something like “I want you to translate the text that I am going to hit you to English, and add grammatical explanations and comparisons of structures between the two languages.”. Something like that will give you a much more didactic translation. You can also ask you to make more natural alternative translations, or after the translation ask you to explain why you have translated certain phrase in such a way. Come on, you can level translations To learn language things in the process. Ask for a curriculum “I want to start learning English from scratch, and I would like you to do a study plan adapted at the beginner level, with resources recommendations.”. Only with such a prompt, AI can help you organize a study process by offering resources. Ask for exercises and exams Finally, You can ask you to do exams To test. You can do this in different ways: you can ask you to generate the template of an exam, or you can ask you to tell you questions of an exam and correct your answers. You can also ask for loose exercises, that ask you several questions several related to a theme. In any case, it is important that you specify THE EXAM AND LANGUAGE LEVELin addition to mentioning whether you want to do it on concrete topics or concentrate on environments or types of conversation. You can also specify that it is grammatical, spelling, or whatever you want. You can also ask you to generate games to learn languages By way of exercise, such as hanged, where you have to say letters and guess the word before making a certain number of mistakes. In Xataka Basics | 22 useful and not so well -known free artificial intelligence tools

Now they invite us to solve crimes

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For a long time, the books of hobbies They have been considered a summer and inconsequential entertainment, even with a stale point. But we live renewed times for exercise notebooks: now not only do self -defined and letters of letters is well seen. The last tendency to enrich the tight section of the hobbies is in the crimes puzzles. The ‘Murdle’ phenomenon. Behind this current is’Murdle‘, some notebooks with ingenuity puzzles that combine the deductive logic of the classic police enigmas with the immediacy of contemporary online hobbies. Its creator, GT Karber, was inspired by the black novel and game mechanics like ‘Wordle‘, the already massive online game of guessing words and to which indisimulantly refers to the title, but adding a narrative and mystery layer. How ‘Murdle’ works. The main objective of each puzzle of the book is to solve a murder answering four key questions: who committed the crime, how, where and why. The player receives a series of tracks that must be analyzed and everything is resolved logically. The elements that have given him fame are, apart from that there are all difficulties and, therefore, adapted to all types of audiences, a certain touch of humor and the narrative component of which more abstract puzzles lack. The result: three million copies sold in 30 countries and the creation of a franchise of which versions adapted for different countries are published. In Spain there are already three volumes of the series, plus a youth version. More crimes. ‘Murdle’ are not the only books that use crimes as an excuse to propose puzzles and ingenuity games. There are imitators (the planet herself, editor of ‘Murdle’ in Spain, launches ‘Can you solve this murder?’, A ‘Choose your own adventure’ in a police code), but the series ‘Illustrated Crimes’by Modesto García. In each book of the series, twelve independent cases are presented that the reader must solve analyzing illustrations of crime scenes, visual clues and hidden details. It is even more narrative than ‘Murdle’, although not linear, and there is an element of deduction based on concrete elements of the drawings that lose the abstract point, more of a traditional puzzle, which has ‘Murdle’. A very specific thing does have in common ‘Illustrated crimes’ and ‘Murrdle’: their birth in networks. The project was born during the confinement of 2020, when Garcia, together with the illustrator Javi de Castro, began publishing these interactive criminal deduction challenges on his Twitter profile that he later adapted to the printed format. The hobbies are the most. The Digital disconnection search And of intellectual challenges that go beyond what the screens offer the screens have marked the proliferation of this new hobbies of hobbies, although we have to look for a concrete guilty, there are very clear names: Blackie Books and its collection of ‘Notebooks‘Of hobbies, created by Daniel López Valle and Cristóbal Fortúnez. Each annual volume since 2012) collects 150 tests of ingenuity, attention, memory and cultural knowledge bathed in pop humor. Success led Blackie herself to launch similar notebooks outside the summer, oriented to children’s public, sometimes thematic, and editorials such as Larousse, Editions B, Anaya, Blume or SM have launched multiple imitators and notebooks inspired by Blackie’s originals. And within this trend, of course, lies the success of ‘Murdle’. We like crimes. The perfect storm that ‘Murdle’ has converted and derived from a success is the current fever that we live in the True Crime: Massive series of genre audiences worldwide and the impact of the Internet and social networks, which make spectators in amateur detectives willing to discuss all the details of the cases have been the breeding ground for ‘Murdle’. Yes, of course, we have ‘clued’ since the forties, but ‘Murdle’ would be unthinkable if we do not see us all a bit like the researchers capable of unraveling the details of ‘The Asunta case’ only pulling Wikipedia. Good times for “advisory detectives”, as Sherlock Holmes defined himself. Header | Planet In Xataka | 16 free hobbies apps: letters of letters, self -defined, sudokus and more games

The Spanish Galeon San José was sunk transporting 20,000 million dollars. Mexico and Colombia are going to bring that treasure to light

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The history of San José Galeon It is very particular. The ship left the shipyards of Guipúzcoa in 1706 to the sea of ​​the Caribem, and there it was loaded to the flag with gold, gems and jewels from Peruvian, Bolivian and Mexican mines. It was a Awesome boat With 40 meters of length, 64 cannons and a crew of 600 people, but was sunk after an attack of British privateers in 1708, leaving only 10 survivors and that juicy treasure in the depths of the sea off the coast of Cartagena. It is one of the More than 1,500 Spanish Spanish ships Through the world and Mexico and Colombia are collaborating to ‘rescue’ those treasures that have been in the back of the ocean for more than 300 years. It has a value My dear of 20,000 million dollars and is the protagonist of an authentic soap opera. A soap opera. The history of San José did not end when the ship touched background. In fact, I may only start. In 1981, the Search Armed Exploration Company claimed to have located the Spanish wreck and delivered the coordinates Not Spain, but Colombia. The treatment? Supposedly, access to half of the treasure. However, in 2015, the Colombian government said they found the remains in a place different from that indicated above. That enraged the company Cazatesoros, who claimed that it was a strategy so that Colombia did not have to share the treasure. Neither short nor lazy, former president Juan Manuel Santos proudly said it was one of the most important treasures in Colombiaand everything pointed out that Search Armada would not see a cent. Meanwhile, Spain was not with crossed arms and appealed to his sovereignty about Galeon. Investigating. In 2024, with the wreck even in dispute, the Commission for the Investigation and Accusation of the House of Representatives of Colombia opened an investigation against former president Santos. The reason? “Intrusion and looting” of the Spanish Galeon. “It’s not a treasure”. The current Colombian government has another point of view and, in May last year, declared as the protected archaeological area the pungent area. The Minister of Cultures of Colombia, Juan David Correa, said that it was “the first time that an archaeological heritage area submerged at such depth is declared, it is historical for Latin America. We already have a special plan of underwater archaeological management.” Protection. The objective, then, is to guarantee the protection and conservation of the Galeon, as Alhena Caicedo, director of the Colombian Institute of Anthropology and History, and said history, and The doors were not closed to treat the wreck as shared heritage. The objective now is to see what the ship was transporting and catalog it. It seems that it is not a treasure rescue mission, such as Correa itself: “It is not an extraction mission for economic value. What we want is to leave Colombia the possibility of a scientific-cultural mission that will have several stages and that starts today.” Mosaic rebuilt from photogrammetry files Mexico + Colombia. And that is where the National Institute of Anthropology and History -INAH- of Mexico comes into play. In an initiative called “Towards the heart of the San José Galeon”, Colombian and Mexican researchers are collaborating to be able to carry out this ‘recovery’ process. Mexico has a great experience when making archaeological expeditions (with recent examples such as the entire Mayan train networkthe application of New techniques to explore the interior of pyramids and the Underground stay mapping). A underwater expedition is different, but there they also have something to say. Colombian researchers asked INAH members about their experience in the project of Our Lady of Juncala ship that shipwrecked in 1613 in the Gulf of Mexico and with which there are parallels in the case of the San José expedition. In addition, between Colombia and Mexico there are archaeologists support programs that are formed in a cross way in both countries, as if it were an Erasmus of archeology. Digitize everything. Therefore, Mexico is advising Colombia, but it is these who, using submarine robots, are exploring San José and its surroundings in a program consisting of four phases: First phase (it began in May 2024): an underwater research ship comes into play with dynamic and acoustic positioning technologies, as well as a remote operating vehicle with sensors that has the mission of reaching the site. Second phase: generation of images of the site with which to prepare a record of the archaeological evidence for the classification of materials and their origin. THIRD PHASE: prediagnosis of conservation to establish starting points on the level of deterioration of the elements. Fourth phase: Digital documenting the archaeological context through photogrammetry techniques for informative purposes. It seems that Colombia’s plans are clear and, according to the details of the different phases, it does not seem that the goal is to get everything they find out of the water, but to catalog it so that we can see the state of the ship and its shipment 300 years later (in addition to the wealth it carried when it was sunk). Next steps. These last weeks, however, There have been important findings. The ICANH confirmed new “areas of interest” on the site, with Chinese porcelain, ingots, weapons and currencies that allow us to know more about the context of the sunken galleon. In addition, both INAH and the Ministry of Culture of Colombia have set October 2025 and the date on which they will detail the next steps of the mission. The idea is to profile that strategy of ‘towards the heart of the Galeon’ in order to exhibit tangible results before the end of the current presidential mandate in 2026. And, surely, it will be then when the controversy between Spain, Colombia, the indigenous community Qhara Qhara that demands Rights on the Treasury and the company that claims to have discovered the wreck to a new level. Images INAH, Wikipedia, ICANH In Xataka | Sunk ships … Read more

The Pentagon gets fully into the Rare Earth War with China. Has invested 400 million in the most promising US mine

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The US Department of Defense is about to establish itself as the largest shareholder of MP Materials. A few hours ago has announced who will buy shares of this mining company for A value of 400 million dollars. And, in addition, it will provide additional 150 million to help this company Extract and process rare earths which contains its Mountain Pass site, which is in California, although it resides very close to the border with the Nevada state. This mine is the only US site that contains some of the rare earths that are necessary to manufacture high -power industrial magnets, so it has become a very valuable strategic resource for the country led by Donald Trump. The US plan pursues Develop your own supply chain of rare earths with the purpose of eliminating any dependence on the global market of these chemical elements, which is controlled by China. The entry of the Department of Defense in the MP Materials shareholders reflects with absolute how important this mine for the US is from the point of view of national security. What is not yet clear is if it contains the rare earth range and in the right amount to meet the needs of US companies. In any case, with its investment the Pentagon intends to ensure the supply of rare earths to manufacture High power magnets for military applications For at least ten years. Why are rare earths so important to the US and its allies On April 4, just 24 hours after Donald Trump announced the taxes that he was going to apply to the importation of most products from abroad, The administration led by Xi Jinping responded. And he did it forcefully. In early December 2024 He chose to prohibit The export of some critical minerals to the US, among which were three essential metals for the chips industry: Gallium, Germanio and Antimony. Shortly after the Chinese government added two more critical metals to its list of export restrictions: the Scandio and the Disposio. These chemical elements are probably less known than metals prohibited by China previously, such as Gallium or Germanio, but are at least as important as the latter because They have a fundamental role In the industries of integrated circuits, telecommunications and the manufacture of storage devices. Chinese authorities are retaining in ports throughout the country not only rare earths, but also high -power magnets The ability to put pressure from China had not yet been extinguished. Just ten days later, on April 14, the Administration did not hesitate take another step forward With the purpose of putting in check, in addition to the industries that I just mentioned, those of electric cars, aeronautics and advanced armament. To achieve this, it effectively suspended, in addition to the export of the most valuable rare earths, that of high -power magnets that have a critical role in the industries that I have cited in this same paragraph. The Chinese authorities are retaining in the ports throughout the country not only the rare earths, but also the high -power magnets acquired by the electric cars manufacturers of the entire planet, the aerospace companies, the chip factories and Armament companies. Many of these organizations have high -power magnet reserves made with rare earths, but possibly only allow them to subsist a few months. Europe in particular is in an extremely delicate position. China’s export controls are directed mainly to the US, but the old continent It does not remain unscathed. At least for the moment. In fact, in Germany, which as we all know is the heart of the European car industry, There are already experts who assure that if China continues to retain rare earths and electric motors some essential parts of the electric cars production chain will stop in a few weeks. For the European car industry this blow would be very difficult to fit. European companies that are dedicated to the manufacture of semiconductors are also in a very compromised situation. According to Reuters Many European chip production lines They will stop very soon Due to the shortage of crucial supplies, which has led the European Chamber of Commerce to meet with officials of the Ministry of Commerce of China to ask them to allow rare earth supply to European companies that are dedicated to the production of integrated circuits. Image | The Pentagon More information | The Washington Post In Xataka | The US will not be able to contain the technological development of China. Experts from the chips industry forecast it

In Seville they are cloning voices with AI to beg for money for Bizum

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AI has been able to clone almost perfect voices. What we did not expect is that these types of tools began to be used to cheat a Sevillian brotherhood. The event. The Archbishopric of Seville He has given the alarm to his brotherhoods. The reason: An scam attempt at the Andalusian level in which cloned voices are starting to try to impersonate the bishops. One of the brotherhoods of the capital recently received a call imitating the voice of Monsignor Teodoro Muñoz, one of the auxiliary bishops. The request. In Xataka we have been able to talk to the brotherhood, and confirm that the request was the most rocambolesco. He called the brotherhood posing as the bishop. A certain amount of money was requested through Bizum. The petition was justified to pay a succession tax necessary for the Brotherhood to collect an inheritance The voice. As the brotherhood explains, the voice was “a practically perfect clone.” In addition, it was not a voice recording, the interlocutor was talking to the auxiliary bishop until he hung after his refusal to access the required payment. It is not an isolated case. In February 2024, Jaén today echoed of an identical event. A fortnight of convents of the province received at the beginning of the year called in which he claimed to be the bishop, also requiring an economic amount in this case to help the bishopric. The new Timo del CEO. Hyperrealist scams are not new. In fact, We have spent more than four years talking about them. The Zendal Pharmaceutical Group was the victim of a scam worth 9 million euros in 2020. In this case there was not even an implementation of AI: someone passed through the head of the company by email requesting high -value transfers. With the rise of artificial intelligence tools, Scams with cloned voices are increasingly frequent. These tools allow not only to create recordings with the simulated voice, but to imitate it in real time, making the even more realistic call. Suspect, always suspect. Differentiate what is AI and what is not increasingly complicatedso the biggest protective factor will always be suspicion. If money is requested. If personal data is requested. If it does not fit the least. Hanging. Image | Archdiocese of Seville and Xataka In Xataka | “People want something more intimate and emotional”: Christian baptisms have found relief in Spain, civil christening

Hunting bargains on the last day of Prime Day

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He Prime Day of Amazon He has been the main protagonist of this week. There are many offers in technological devices that we have found. If you are thinking about buying some technology, today is the last day you can enjoy these discounts. It’s time for Hunt bargains and discover some of the best chollos of the week! MacBook Air M4 by 999 euros: with 256 GB and 18 -hour autonomy. Xiaomi 14t Pro by 399.99 euros: With 1.5k and hyperos screen. Kindle Paperwhite Signature Edition by 154.99 euros: With frontal light and 32 GB. Fire TV Stick 4K by 35.99 euros: With Dolby Vision & Atoms and Wifi 6. Amazfit GTS 4 by 169.90 euros: With 1.75 inches screen and 150 sports modes. MacBook Air M4 If you like renew your old MacBook Or, definitely, you want to make the leap to the Apple operating system, this is a very good opportunity to do so. Now, you can take the last macbook launched to the market by 999 euros compared to the 1,200 euros that usually costs. It is not an offer of Prime Day, but it is worthy of deserving a mention. This laptop MacBook Air M4 Mount a 13 -inch Liquid Retina screen and comes with 16 GB of RAM and 256 GB of internal storage. Its battery is one of its great halls of identity, since it offers up to 18 hours of video playback. In addition, it is a very compact and light model, so you can comfortably take it anywhere. Apple 2025 MacBook Air of 13 inches with m4 chip * Some price may have changed from the last review Xiaomi 14t Pro For those who seek to renew their old mobile and do not want to spend a grassland, the Xiaomi 14t Pro It is one of those models that is worth taking into account. Above all, now in Prime Day, since it is available at a price of 399.99 euros. This Xiaomi 14t Pro It stands out for many things. One of them is your screen, which is 6.67 inches AMOLED and offers 1.5K resolution and also has 144 Hz of refreshment. The brain of this mobile is the mediatek dimensity 9300+ processor and its camera system is signed by Leica. It has 256 GB of storage and works under the operating system Hyperos. * Some price may have changed from the last review Kindle Paperwhite Signature Edition Amazon Prime Day is one of those perfect moments also to buy an electronic book reader such as the Kindle at a small price. Now, you can take one of those that presents the best value for money, the Kindle Paperwhite Signature Edition by 154.99 euros. This latest generation of Kindle Paperwhite Signature Edition It stands out for its seven -inch screen and an excellent autonomy of 12 weeks. Comes with 32 GB of storagefrontal light and is water resistant, so you can take it to the pool or the beach without problem this summer. Kindle Paperwhite Signature Edition (32 GB) * Some price may have changed from the last review Fire TV Stick 4K Another of the devices that are impossible for me not to recommend each prime day is the Fire TV Stick 4Kespecially now at the price it has. Specifically, this is the best selling model and you can take it (during this campaign) for 35.99 euros. He Fire TV Stick 4K It is an ideal device if you do not like your TV operating system and want to improve it or if you have an old TV (with HDMI input) and want to turn it into intelligent. This model offers 4K resolution and is compatible with Dolby Vision & Atmos, HDR10+ and Wifi 6. In addition, it comes with a command with direct access to the main streaming platforms. Amazon Fire TV Stick 4K (last generation) * Some price may have changed from the last review Amazfit GTS 4 The last of the chollos that we want to recommend (and that is worth it, especially if you are looking for an smart watch), this is Amazfit GTS 4. Now, you can find it reduced, by 169.90 euros. This Amazfit GTS 4 It is an off -road clock with an elegant design (very similar to the Apple Watch). Its screen is 1.75 inches and is compatible with both Android mobiles and iPhone. His battery lasts up to eight days and includes 150 sports modes. * Some price may have changed from the last review Some of the links of this article are affiliated and can report a benefit to Xataka. In case of non -availability, offers may vary. Images | Apple, Xiaomi, Amazon and Amazfit In Xataka | What is the best Cecotec roof fan: purchase guide In Xataka | What a monitor buy to work. Purchase guide and 11 productivity monitors from 100 to 600 euros

If Europe drums arrive, it will respond with a duplicate nuclear force

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At the end of the 1950s, France, in the figure of Charles de Gaulle, promoted the idea that the nation could maintain some strategic dependence by launching the Nuclear deterrence policy Sovereign, a kind of nuclear umbrella arguing that, although the United States was an ally, its interests could Do not match Always with those of Europe. Half a century later, that idea sounds strongly in the old continent with an unpublished Anglo-French alliance. An unprecedented agreement. United Kingdom and France, the only two sovereign nuclear powers of Western Europe, have first announced the decision to coordinate the Use of its atomic arsenals in response to any extreme threat that endangers the safety of the continent. He agreementpresented by British Prime Minister Keir Starmer and French president Emmanuel Macron during a state visit to London, brand A significant turn In strategic cooperation between the two countries, especially in the face of the renewed fear of Russia’s aggressiveness and uncertainty about American commitment to European collective defense under Trump’s leadership. Asterisk. Very important; although the British and French arsenals will continue to be technically independentnow they can be used jointly in case of conflict, an unequivocal signal for both allies and adversaries that any serious aggression against one of the two will be answered by both. Differences overcome by a threat. The pact represents a symbolic overcoming of traditional differences between London and Paris in nuclear doctrine. United Kingdom has integrated its arsenal in the nuclear planning structure of NATO And it depends technically on missiles supplied by the United States, although it operates autonomously. France, on the contrary, has always defended with zeal Total sovereignty About his deterrence, refusing to participate in the NATO nuclear cast system, and maintaining An independent doctrine whose strategic scope (“vital interests with European dimension”) has been deliberately ambiguous. The decision to act coordination does not involve merging capabilities, but synchronizing potential responses and generating a unified front against possible aggressions, especially in a scenario of weakness in transatlantic commitment. Storm Shadow Complement and evolution. Both countries possess Comparatively small arsenals In relation to the great nuclear powers. United Kingdom bases its deterrence In Trident missiles launched from submarines, but has announced plans to incorporate an air capacity by F-35a aircraft of American origin capable of carrying nuclear weapons. France, on the other hand, maintains a completely national force, which combines maritime and aerial vectors. In addition, he works In the ASN4Ga next-generation hypersonic air-earth missile with nuclear capacity (which United Kingdom Study adopt), which would mean having for the first time in decades of an air nuclear system independent of American control. The new coordination will allow, among other options, synchronize underwater patrols or stepped maintenance periods to ensure a continuous presence in the sea. Experts such as Camille Grand and Lawrence Freedman highlighted the transcendence of the ad, since France He had never admitted Publicly no type of nuclear cooperation of this type, which implies an important doctrinal change. TRIDS DIAGRAM The American umbrella. He underlined The New York Times That the decision to move towards an incipient form of coordinated nuclear deterrence responds, in addition to the Russian threat, to the Strategic emptiness that has left Washington’s ambiguous attitude towards European defense. The traditional dependence of the NATO nuclear shield, under American leadership, has It was questioned for Trump’s skepticism regarding the usefulness of protecting the allies of the continent. In this context, Franco-British tandem assumes the responsibility of projecting a credible European alternativealigning their respective defensive doctrines and sending a clear message to Moscow about the consequences of continuing his offensive in Ukraine. The pact is articulated within a greater strategy to revitalize the call “Coalition of the willing”an informal alliance of European countries that seek to sustain the Ukrainian war effort before the American replication. Challenges: Ukraine and coalition. Plus: The agreement comes in a moment especially delicate In the Ukraine conflict, where the promise of a high fire driven by Washington has not been completed and Western military aid, especially from the United States, is He has slowed down. Starmer and Macron, which lead the hard core of the Pro-Ukrainian coalition, seek to recover the impulse through A virtual conference with other allied leaders from a military base on the outskirts of London. However, some countries continue showing reluctance To send material means such as combat airplanes, which underlines the difficulties in maintaining cohesion in a fragmented coalition for divergent interests and national agendas. The joint nuclear initiative is thus enrolled in a broader logic of diplomatic pressure to Hold the commitment European in the face of transatlantic umbrella. Friends after Brexit. The nuclear pact, in addition, symbolizes a significant thaw in the relationships between London and Paris, deteriorated after the referendum Brexit. Starmer and Macron have presented this relaunch of links as a stage of pragmatic understanding, cemented not only in collective safety, but also in thorny areas such as migration. Both governments negotiate A new agreement To stop migrants’ crosses in small boats from the coast of northern France, a growing problem that has generated bilateral tensions. The objective is to reduce flows without giving up humanitarian obligations, in the midst of growing political pressure by populist parties as reform uk. The Lancaster Pact. The Franco-British alliance also extends to the joint development of new conventional capacities. Within the framework of the so -called “Lancaster House 2.0”both powers will sign an update of the Defense Treaty signed in 2010. This new agreement provides for the creation of a new generation of long -range missiles that will replace the Successful Storm Shadow/Scalpused by Ukraine, in addition to an extension of the joint expeditionary force. Likewise, development is contemplated of Air-Aire missiles latest generation, microwave weapons to interfere with drones and missiles, electronic war systems and intensive artificial intelligence use To coordinate attacks with millimeter precision. These initiatives reinforce the projection capacity of both countries and consolidate their role as central safety guarantors in Europe, at a time … Read more

We have also changed the rotation axis

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A few years ago, Jet Propulsion Lab scientists They estimated That the filling of the three throats, the huge hydroelectric project of China, implied the movement of a mass of water so vast that it was capable of lengthening 0.06 microseconds The land day. The Chinese dam is a singular case for its magnitude, but it is only one of the tens of thousands of reservoirs that populate our planet. The global impact of these reservoirs has now undergone. Displacing the poles. A new study He has found evidence of the geological impacts that the construction of dams can have on a global scale. They observed that the construction of dams had caused a slight displacement of the geographical poles of the planet, Geographical poles? As little ones, they will probably teach us that the geographical poles and magnetic poles of our planet were located at different points of their respective polar circles. They would surely teach us that the magnetic poles tend to move slowly over time while the geographical poles remain static forming the Earth’s rotation axis. This is more or less true, but not at all: geographical poles can also move. The reason is in the structure of the earth. Our planet is not a block of uniform rock but is formed by several concentric layers. While the outer layer is essentially solid, the interiors are not. As if it were a mat on a pool, the “float” earth’s cortex on the mantle, which implies that it can move more or less independent displaced by the physical forces that are applied in each case. Redistributing the dough. Forces that in turn depend in part of the distribution of the masses that we find in this superficial part of the planet, a distribution that is altered every time we introduce changes in the geography of our planet. These changes include the displacement of large masses of water to the swamps, water that in “normal” conditions would have returned to the ocean dragged by the rivers in which we build prey. “As we catch water behind the dams, we not only eliminate the water from the oceans, reducing sea level, the mass is also distributed in a different way around the world,” explained in a press release Natasha Valencic, co -author of the study. 6,862 reservoirs. The study responsible for the study analyzed the impact of water accumulation in 6,862 reservoirs, an accumulation of water that twice represents the volume of the Grand Canyon of Colorado. The team observed that between 1835 and 2011 this accumulation of water could be responsible for almost a meter of displacement in the axis of terrestrial rotation with respect to the planet’s surface. The displacement would be divided into two stages, the first between 1835 and 1954, in which the pole would have displaced 20.5 cm to the 103 meridian as a result of the construction of dams in Europe and North America. The second, between 1954 and 2011, would have been dominated by the construction in Asia and Africa del Este, carrying the 57 centimeters pole towards the 117 western meridian. The details of the study were published In an article In the magazine Geophysical Research Letters. More than reservoirs. The implications of these geographical changes are not extreme: after all the tectonic plates do not stop moving at our feet despite the fact that their rhythms usually be more slow. However, knowing these little movements can help us understand some of the geological dynamics and the impact of the human being on them. “We are not going to fall into a new ice age because the pole has modified around a meter in total, but it has implications for sea level,” Clarified Valancic. In Xataka | China is raising an unprecedented dam where millions of people live. The problem is seismic activity Image | Ali Madad Sakhirani

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