tiny

Gasoline hoses have a tiny hole at the end. Without chips involved, it is the smartest piece in the entire supplier

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If you’ve ever paid attention to the pump while filling up, you may have noticed that it has a small hole located near the tip of the metal nozzle. That little hole is, possibly, the most ingenious piece of the entire set. And it is responsible for the hose “knowing” when to stop adding fuel and stopping on its own with that characteristic click. What exactly is it. This small hole is located at the end of the pipe (the part that you insert into the tank) and is connected to a thin, secondary tube that runs inside the nozzle parallel to the main fuel line. The nozzle uses the fuel itself that is being pumped to create the effect that activates the automatic cut. So to speak, the little hole does not pour gasoline, but rather breathes air. How it works. The key is in a physical principle called the Venturi effect. While the fuel flows at high speed through a narrowing of the duct, a low pressure zone is generated that sucks air through that small hole in the tip. The Venturi effect occurs because The density of gasoline is greater than that of airand it is precisely this phenomenon that causes the dispenser to turn off automatically when the tank is full. The moment of cutting. When the gasoline level inside the tank rises to cover that hole, the tube stops being able to suck in air. When the airflow is cut off, the suction is triggered and creates a vacuum that pulls on a flexible membrane (a diaphragm) housed in the handle of the nozzle. That movement releases a lever mechanism that slams the main valve shut, stopping fuel instantly. The pressure change causes the diaphragm to “jump”releasing the mechanical lever that closes the valve and ending with a click. And as you may have already noticed, the cut occurs even if you continue to pull the trigger. 100% mechanical. This entire system is purely mechanical. There are no electronic sensors, no chips, no batteries. The handle simply generates a slight vacuum at the tip of the pipe, and if that point becomes clogged, a mechanism closes the valve. It is basic physics applied to this little invention that we use in our routine, and that is capable of detecting even a small amount of fuel, blocking the hole to prevent it from overflowing. Security and cuts. This system prevents gasoline from overflowing from the tank, something that would be dangerous (risk of fire) and polluting. But its usefulness goes beyond safe filling. This extraordinary sensitivity is also the cause of those premature and repeated cuts when the jet turns off even though the tank is not full. The most common cause of these annoying cuts is simply a little gasoline splashing back and covers the hole momentarily, activating the mechanism ahead of time. In cars with short filler tubes, a rapid flow can easily flood that column, so the first recommended remedy is usually to reduce the filling rate. The position of the nozzle and the temperature of the fuel also play a role. In Xataka | The United States has the best electric car chargers in the world. Europe has something more important

the key is in tiny technology

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The promise of 6G It has been on the table for years, but there is a part of that story that is usually left out of the window. We’re not just talking about faster mobile phones, seamless video calls or almost instant downloads, but about something much more complex: getting huge amounts of data to travel through the air with great stability. That’s where technology meets its own ceiling. And a Japanese team just placed a tiny piece right in the center of that problem. 112Gbps. What the researchers have achieved is to send data wirelessly at 112 Gbps in the 560 GHz band. The demonstration was announced by Tokushima University and researchers from this university and Gifu University participated. The important fact is not only the speed, which is already enormous, but also the place where it has been achieved: above 420 GHz. According to the researchers, it is the first time that 100 Gbps class wireless communication has been demonstrated above 420 GHz. The 350 GHz wall. To understand why this result matters, we have to look at the problem that terahertz communications have been experiencing. Mobile networks have gained speed and capacity by increasing working frequencies, but this path becomes more complicated when entering extreme territories. Above 350 GHz, conventional electronic technologies face to lower output power and increased phase noise. In other words: it costs more to generate a strong, stable and useful signal to transmit data at high speed. The tiny piece is a microcomb. The word may sound strange, but the underlying idea is quite visual. A microcomb generates multiple regularly spaced optical frequency modes, like the tines of a comb. Tokushima University explains that this allows very high frequency optoelectronic signals to be obtained with a quality superior to that of conventional electronic approaches. In the configuration used by the team, an optical fiber is attached directly to the microresonator, which eliminates the need to perform extremely precise optical alignments as in conventional systems. The way forward. First, the microcomb allows the generation of a cleaner and more stable terahertz signal than that obtained with conventional electronics at those frequencies. Then modulation comes into play, which is the way of encoding the information within that signal so that it carries more data. The official source talks about high-order modulation techniques, such as QPSK and 16QAM. With QPSK, the system achieved 84 Gbps; with 16QAM, it reached 112 Gbps. It is not for tomorrow’s mobile. It is advisable to understand the scope of the advance before imagining phones directly connected to 560 GHz. The university itself speaks of a technological base for ultra-fast backhaul links and integrated photonic-wireless networks in 6G systems. Simply put, backhaul is the part of the infrastructure that connects base stations to the main network. That’s where very high-capacity wireless transmission can make sense: moving large volumes of data between fixed points. There is still a way to go. Researchers want to extract even more performance from these waves by reducing phase noise, developing more advanced antennas and increasing power output. The objective is clear: that speeds like these do not remain a one-time demonstration, but can be sustained at greater distances. There will be an important part of the reality test. What we’ve seen now is not a finished 6G network, but rather a piece of technology that helps show how a part of that network can be built. Images | Tokushima University In Xataka | Reddit was one of the last corners of the Internet free from burning. Now it’s starting to show worrying signs.

1,800 years ago the Romans had an amulet against bad luck. It was literally a tiny penis.

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Measures about three centimetersis cast in bronze with great detail (anatomical) and despite being around 1,800 years old, it is surprisingly well preserved. We talk about a phallus. A penis. An ancient figurine representing male genitalia that archaeologists have just unearthed in a roman site from Cumbria, in the northwest of England. The most curious thing, however, is not the appearance of the penile statuette itself. But that it took so long for researchers to find it. We explain ourselves. Under a cricket pitch. He Carlisle Cricket Club is a large resort for cricket lovers located on the outskirts of the town of Carlise, in Cumbria, England. That’s today, of course. If we go back almost 20 centuries to that same land, located on the banks of the eden riverwelcomed some hot springs where the Romans came to chat and relax. Years ago a group of archaeologists started investigating in the area to search for remains of that remote Roman past. Among the many things they recovered at the site, in addition to ceramics, fragments of pillars and heads sculpted in stone, there is one that has attracted attention: a penis. What do you mean, a penis? The figurine in question revealed it a few weeks ago the photographer Pete Savin in And archaeologists believe that the piece has some 1,800 years. It would be logical to think that Savin or the director of the site, Frank Giecco, raised their eyebrows when they encountered such a discovery. However, the opposite happened: what had surprised them for some time was not finding any phallic figurines among the Roman ruins of Carlisle. “It is unusual that we have not found a phallus-shaped object at the site before, as it is very rich in other types of objects,” admits Giecco to the BBC. Don’t say penis… No, say best amuletwhich is the function fulfilled by the figurine found in Cumbria. The researchers they are convinced that its purpose was not to simply represent a penis and the piece did not have an obscene or sexual nature either. It was not even a symbol of fertility. At least that wasn’t his main goal. For the Romans the device surely acted as a talismana protective tool designed to attract good luck and ward off the evil eye. The Romans were so convinced of the healing power of these phallic representations that they frequently resorted to them, either by capturing them in figurines that they would then hang from their belts and use as jewelry or by carving them on the walls. Click on the image to go to the tweet. A phallus for the collection. The truth is that you have to take a quick look through the newspaper archive to see that discoveries like the one in Cumbria are relatively frequent. Even in England. Or in Cumbria itself. In 2019 a group of archaeologists from the University of Newcastle cataloged there several inscriptions left by Roman soldiers in a quarry near Hadrian’s Wall, a series of ‘graffiti’ drawn on the rock in 207 AD and including (exactly!) the relief of a phallus. Last year another team focused on Vindolandaone of the Roman forts that protected Hadrian’s Wall, encountered another similar surprise. During their excavations they located a penis-shaped pendant hidden among the challenges of a wall from the 4th AD. Archaeologists speculate that the piece, made of jet, was lost at the beginning of that same century. And given how polished its surface is, they believe that the owner of the amulet handled it frequently. Small, big, huge. Carlise’s piece barely exceeds three centimeters and Vindolanda’s (at least for the photos shared by researchers) appears even smaller. However, not all representations were so minuscule. In 2022, while investigating a site in the province of Córdoba, archaeologists discovered a bas-relief that shows a 45 centimeter phallus long. The figure was carved directly on the cornerstone of a large building, another relatively common habit. “It was common to place them on the facades of houses and soldiers wore small phallic amulets as symbols of virility,” explains to The Country Andrés Rodlán, director of the project, although he also recognizes that Córdoba engraving breaks the mold. “This one is unusually large.” The list of phallic representations found in recent years goes on and on, with discoveries stretching from the distant lands of Britannia. to Omritin Israel. Why this obsession? The experts believe that phallic figures were so popular not because of their explicit nature, but because of their enormous load of meanings. Whoever carried a figurine of a penis or decided to sculpt it on their wall did not simply intend to show a male genital. He sought to protect himself with an amulet capable of warding off the evil eye. In fact, they not only surrounded themselves with images of more or less anatomically accurate penises. They also created figurines of winged phalluseswith animal shapes or with bells. “Phallic emblems are found on a wide variety of Roman objects, from amulets and frescoes to mosaics and lamps. They were symbols intended to attract good luck and ward off evil spirits. As the ancient author Pliny attests, even babies and soldiers wore such amulets to invoke divine protection,” they explain from the MET Museum. The reality is that, if history has shown anything, it is that humanity has always shown a fascinating inclination to represent penises everywhere. Images | The MET Museum and Carole Radatto (Flickr) In Xataka | Almost 2,000 years ago a Celtiberian soldier visited the most remote frontier of the Roman Empire. Then he returned to Soria with a souvenir

It takes 7,000 GPUs to simulate a tiny quantum processor. Although it may not seem like it, it is excellent news.

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The complexity of quantum computers It is extraordinary. In their construction it is possible to rely on several very different strategies, such as, for example, superconducting qubits, ion traps or neutral atoms, among other technologies, but they all have something in common: to a large extent its power is a consequence of its complexity. Of the complexity inherent in any device designed to take advantage the laws of quantum physics. The surprising thing is that, despite its sophistication and exoticism, it is already possible to accurately simulate a small quantum processor using conventional hardware. In fact, has achieved it a research group from the Quantum Systems Accelerator and the Division of Applied Mathematics and Computational Research at the University of California at Berkeley (USA). This is not the first time that a quantum processor has been simulated, but until now no one had managed to do it by emulating every physical detail before its manufacture. A new era begins in quantum chip design Here’s a shocking fact: the Berkeley researchers I mentioned in the previous paragraph have carried out their simulation of a quantum chip using the Perlmutter supercomputer, which contains 7,168 NVIDIA GPUs. To achieve their purpose, they used almost all of these GPUs for 24 uninterrupted hours, so it is evident that the computational effort was titanic. But they got it. They managed to model a multilayer quantum chip 10 mm wide and 0.3 mm thick, accurately simulating how signals travel and interact within this processor. This statement from Andy Nonaka, one of the scientists at the Berkeley Quantum Systems Accelerator, express clearly Why this milestone is so important: “I am not aware of anyone who has ever performed physical modeling of microelectronic circuits at the full scale of the Perlmutter system.” “I’m not aware of anyone having ever done physical modeling of microelectronic circuits at the full scale of the Perlmutter system. We were using almost 7,000 GPUs (…) We divided the chip into 11 billion grid cells and were able to run over a million time steps in seven hours, allowing us to evaluate three circuit configurations in a single day. These simulations would not have been possible in this time frame without the complete system” What really what makes the difference is precision with which they have managed to carry out the design and simulation of their quantum processor. “We perform a full-wave physics-level simulation, which means we care about what material is used in the chip, its design, how the metal is wired (using niobium or other types of metal wires), how the resonators are built, what the size, shape and material used are (…) We care about those physical details and we include them in our model,” Nonaka says. A priori we can conclude that using almost 7,000 GPUs for 24 hours with the computational effort and energy expenditure involved in this process to simulate a quantum chip just 10 mm wide and 0.3 mm thick is not a success. But yes it is. Thanks to this technology, it will now be possible to design quantum hardware in less time and in a more efficient way. Bert de Jong, director of the Berkeley Quantum Systems Accelerator, invites us to look towards the future of quantum computing with optimism: “This unprecedented simulation is a critical step in accelerating the design and development of quantum hardware. More powerful, higher-performance chips will unlock new capabilities for researchers and open new avenues in science” Image | Generated by Xataka with Gemini More information | ScienceDaily In Xataka | We already know what the chips that will arrive until 2039 will be like. The machine that will allow them to be manufactured is close

Iran’s Achilles heel is a tiny island located 25 km from its coast. The question is whether the US will dare to attack it

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Until practically the day before yesterday Kharg island It was unknown to the vast majority of Europeans. Normal. To begin with, because it is thousands of kilometers from the heart of the EU, in the Persian Gulf, about 25 kilometers from the Iranian coast. It’s not particularly big either. It measures about eight kilometers long and 4.5 km wide. Despite all that, Kharg is perhaps the point that attracts the most attention. is hoarding (from Europe, but also the United States, China and Russia) in the convulsive geopolitical board with which March has started. The reason: the island is the key link of the Iranian oil sector. In a place in the gulf… Kharg Island is not exactly big. It measures 22 km2. What it does not have in surface area, however, it makes up for with its location. Located just 25 km from the Iranian continental coast and a few hundred kilometers from Strait of Hormuzis a strategic point for the global oil industry. The reason: that tiny island channels almost all of the crude oil exported by Iran. And those are big words if we take into account that, according to OPEC calculations, it is estimated that the Islamic Republic has confirmed reserves of 208.6 billion barrelsalmost the 12% of the total world. Is it that important? Yes. Iran enjoys a strategic position that (among other things) allows it to control the Strait of Hormuz, a strategic point for the commercialization of Middle East oil. In fact, it is estimated that almost a fifth of the world’s crude oil and gas pass through that narrow strip of a few tens of kilometers. However, not all are advantages for Tehran. Most of the Iranian coastline is bathed by shallow waters that complicate the movement of oil tankers. To operate with them, companies need to rely on Khrag, an island equipped with deeper docks and which since the 60s has had a powerful infrastructure built with the help of the firm. Amoco. Today it is the largest terminal exporter of the country. A percentage: 90%. Kharg’s role is best understood by dealing with various data. The main one is the volume of merchandise that it channels. It is estimated that almost 90% of Iranian oil exports pass through there, a bottleneck through which black gold flows before being shipped to the Strait of Hormuz. It may seem like an exorbitant percentage, but the island has the necessary infrastructure to charge seven million of barrels daily. Added to this are underwater pipelines connected to the country’s oil fields, storage tanks and housing for the complex’s operators. In the spotlight. Khrag has become the key link in the Iranian oil trade, but it also represents a kind of ‘Achilles heel’. Hitting the island means hitting the Iranian oil industry squarely. It’s nothing new. In the 80s Kharg has already suffered Iraqi bombings. The big question on March 9, 2026, with the US and Israel attacking the Islamic Republic is… Does Washington have any plan that involves controlling the island in one way or another? It is not a whimsical question. The Israeli army already has attacked several crude oil deposits and an oil transfer center located in Tehran and Alborz. The Axios weekend wakefulness In addition, Israel and the US have discussed sending special forces to Iran for various purposes: the main one would be to secure uranium reserves, but Kharg would also be in their sights. Ground operation? However, it is one thing to attack oil deposits and another to invade the island. For a start, remembers CNBCbecause it would require going one step further in the offensive in Iran and undertaking a ground operation. A hypothetical attack could also add more volatility and uncertainty to the industry at a time when a barrel of oil has risen to around $100. In the last hours the Brent even it touched 120. Cutting off the tap. The maneuver would also have advantages for Washington and Tel Aviv, especially when it comes to putting pressure on Tehran. Petras Katinas, an expert in energy and defense, recalls that if the United States controlled the island it could cut off “the oil livelihood” of the Iranian regime. “Looking ahead, confiscation would give the US leverage during negotiations, regardless of which regime is in power once the military operation ends,” insist. “It would deal a severe blow to the regime, since it would deprive it of a crucial source of income,” adds Tamas Varga, an analyst at PVM, who draws a parallel between what happened in Iran and the US intervention in Venezuela. in january. Why doesn’t the US act? For several reasons. We mentioned two (fundamental) before. Experts point out that taking Kharg would require a ground operation. And that, among other issues, could lead to even more instability in the region and the oil market at a delicate time. “Kharg could focus a multi-week attack campaign with Iranian drones and the island has mines and soldiers,” remember Marc Gustafson, who warns that an intervention of this type would not be without risks for the United States. He even mentions the possibility that, if the situation escalates, Iran will destroy its oil pipelines. One island, many drifts. If the US and Israel decide to comply with Kharg, Tehran could also see legitimacy to hit the oil infrastructure of other Gulf countries. That’s not counting, insists Michael Doran (from the Hudson Institute) in that it could complicate the post-war Iranian economy and the stability of any new government that takes the reins of Iran once the war ends. Images | Google Earth and Wikipedia In Xataka | Satellite images have revealed that Iran knocked down four of the US’s eight unique defense systems. If they reach zero a new war begins

A tiny Spanish town with 13 houses can’t take it anymore. A murder has turned it into the capital of crime tourism

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High in the Catalan Pyrenees, among clouds, forests and cows grazing in the rain, Tor risesa village of just thirteen houses where three decades ago a crime occurred that forever marked its inhabitants. In 1995 appeared the body of Josep Montanéknown as Sansa, with an electric cable around his neck and the corpse dragged to his kitchen. It was the third murder in fifteen years in a place too small for so many deaths. Today it seems the decoration of the mythical “A crime has been written”. National myth. History recovered this weekend the new york times as an example of a type of tourism which has been added in parallel to that of sun and beach. What seemed like a rural reckoning became, over time, a a national story about greed, secrets and institutional abandonment. the mountain, shared since 1896 by the town’s families under an ancestral agreement, had become the object of dispute between those who dreamed of a lucrative ski resort and those who wanted to preserve their peasant life. The conflict, fueled by smuggling interests and disputes over ownership, culminated in the judicial grant of the mountain to Sansa and, five months later, in her death. Then came the cultural phenomenon. From tragedy to true crime. The Catalan journalist Carles Porta, then a young reporter, was the one who turned the Tor crime into a media obsession. It started with a television report In 1997, he continued with a book in 2005, a podcast very successful in 2018 and a documentary series in 2023 that transformed the small town into the epicenter of Spanish “true crime.” Porta, fascinated by Truman Capote’s In Cold Blood, found his own Holcomb in that Pyrenean valley and turned the story in an industry. Over the years, the public’s fascination with unsolved crimes attracted visitors from all over the country: curious people, mystery fans and hikers who wanted walk the stage of the murder, staying at Sansa’s old house or posing in the places where the police found evidence. Some even recreated the crime scene. with cables around the necka morbid parody that the neighbors watch with a mixture of bewilderment and resignation. Tor Municipality Crime tourism. The Times remembered that media notoriety brought money, but also disfigured life in Tor. In summer, the streets are filled of cars, the houses become scenery and the neighbors become involuntary characters in a story that never ends. In the Alins family hostel, at the foot of the mountain, phrases by Porta and bottles of liquor with quotes from his book hang, while the visitors ask relentlessly “who killed Sansa.” Merce Turallols, who was a girl when the body appeared, admits that fame has benefited the family business, but he confesses that the residents can no longer stand the circus: in the busiest months, you can’t even park and eccentric tourists tour the town disguised as victims. And more. “One arrived with a rope around his neck,” they remembered in the report. Porta himself, now producer of documentaries for Disney Regarding other cases, he recognizes that Tor’s has become his personal legacy, a phenomenon without end. The man assures have new clues (a possible hitman who lives in Miami) and the intention to close the case with a fiction series, but the people, who never saw justice or rest, feel that the journalist has exploded its tragedy to the limit. Town turned into a stage. Thus, going through Tor today is like going through a museum of rural crime: the local guide point out the places where the body was dragged, the house where a hippie committed suicide, the abandoned car of some smugglers, the meadows where neighbors charged tolls to those who crossed with goods from Andorra. Everything has become anecdote for visitors who seek excitement, while local people demand something as simple as mobile coverage or tranquility. Pilar Tomàs, who lives across the street from Sansa’s old house and was the one who found him dead, serves homemade food in her restaurant full of strangers. He appreciates the increase in clients, but would like a life without cameras nor curious. He joked in the media that if Porta has benefited so much from the case, he could donate at least enough for a telephone antenna. The rise of crime tourism. The call “dark tourism”sordid or thanatotourism has ceased to be a rarity and has consolidated itself as a global trend that turns tragedy into destiny. From the streets of Barcelona’s Raval, where the crimes of Enriqueta Martí either of the “Arropiero”even the towns devastated by the civil war like Belchitethe tourism industry has been able to capitalize on human fascination with death and evil, an interest as old as the shows of the Roman circus. According to the criminologist Vicente Garridothis attraction responds to the mixture of fear and curiosity in the face of the unknown, but today it takes the form of guided routes, theatrical visits and immersive experiences where the visitor seeks to understand (or feel) the echo of horror. New narratives to enhance it. Series and podcasts true crime have reinforced this phenomenon, generating a media aesthetic that romanticizes murder and transforms the victims and executioners into cultural characters. In Spain, theplaces like Torwith their story of unresolved deaths, symbolize that dilemma between memory and commodification: what for some is an economic opportunity and visibility, for others is the trivialization of a tragedy that is still alive. He crime tourism It grows, and with it the ethical question that accompanies it: how much knowledge and how much morbidity there is in looking head-on at the scenes of horror. Image | jqmj (Queralt) In Xataka | Sordid tourism: 17 places for those who travel looking for horror In Xataka | Italy’s tourism has a challenge worse than massification: mafia souvenirs. has started to ban them

The US believed it had an invincible aircraft carrier. Until Sweden “knocked him down” again and again with a tiny submarine

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Exactly 20 years ago there was a fascinating scene which showed that brute force or dimensions monstrous They are not as fundamental as was believed when it comes to naval warfare. Shortly before that true story, the United States had announced to the four winds its most modern, heaviest and most grandiose nuclear aircraft carrier in history. So they took the most logical step: put it to the test. The exercise that turned out regular. In 2005, during maneuvers off the coast of California, the United States Navy allowed something unusual: Repeatedly engage a small, relatively inexpensive foreign conventional submarine to improve its anti-submarine doctrine. The chosen one was HMS Gotlanda Swedish diesel-electric submarine of just 1,600 tons. The objective was to train the aircraft carrier battle group USS Ronald Reaganone of the most powerful ships in the world, equipped with escorts, anti-submarine helicopters and advanced sensors. What followed it was unexpected: Time and time again, over two years of simulations, the Gotland managed to infiltrate the formation, position itself to fire, and “sink” the carrier without being detected. The result caused concern in Washingtoninterest in Moscow and Beijing, and a profound reassessment of the role of modern diesel submarines in contemporary naval warfare. The Gotland and the silent advantage. Gotland’s success was based on its system Air Independent Propulsion (AIP), specifically a Stirling engine capable of generating energy without needing to take air from outside. This allowed the ship to remain submerged for up to two weeks, maintaining a constant speed and extremely quiet, something that previous diesel versions they could not achieve. While nuclear submarines require cooling systems that generate detectable vibrations and noise, the Gotland could move almost without leaving an acoustic trace. Its hull was covered with materials that decreased sonar reflection, its tower included radar-absorbing materials, and the internal machinery was mounted on rubber shock absorbers to silence vibrations. Furthermore, it had with 27 electromagnets capable of reducing their magnetic signature before specialized sensors. HS Gotland Mobility and stealth. The Gotland maneuverability It was also decisive. Its design with X-shaped rudders and automated control systems allowed sudden changes in course and depth with great precision, making it suitable for operating in shallow coastal waters, where nuclear submarines are most vulnerable. In the context of the maneuvers against USS Ronald Reaganthe Gotland demonstrated that it could approach at great depth, obtain a firing position, and withdraw before American sensors will even detect alterations in the environment. Although in a real combat the aircraft carrier could survive several impacts, the essential fact is that it would have been knocked out of combat, which would change the strategic outcome of any naval operation. The US Ronald Reagan Economic and doctrinal threat. The Gotland cost about 100 million of dollars, which is approximately equivalent to the cost of two embarked F/A-18 aircraft. The USS Ronald Reagan, on the other hand, cost more than 6 billionwithout counting its escort or its air wing. In terms of cost-effectiveness, a relatively affordable submarine demonstrated that could neutralize an asset which represents the core of US naval projection. This revelation resonated especially in China and Russiawhich have since accelerated the development of AIP submarines. Today, China operates multiple submarine variants equipped with Stirling and Russia works on updated versions from the Lada projectwhile countries such as Japan, Germany, France, Israel, India and South Korea also develop or acquire submarines of this type. The challenge is not only technical, but also strategic: a small number of submarines of this type can make it difficult to use aircraft carriers near hostile coastlines, altering the way powers deploy their force. The “no” to diesel in the US. Despite the impact of the exercise, the US Navy decided not to repeat operate diesel submarines. Their reasoning is based on logistics and strategic reach: the United States deploys submarines thousands of miles from their bases, and needs units that can operate for monthspursue targets at long distances and sustain high speeds without the need to recharge batteries. Diesel-AIP submarines are ideal for defending territorial waters or coastal areas, but less suitable for prolonged ocean operations. For this reason, the US Navy has preferred to invest in nuclear submarines and, more recently, in unmanned underwater systems that could complement or replace escort and patrol missions. What the Gotland revealed. The history of HMS Gotland proves that naval supremacy is not guaranteed for size or cost of combat platforms, but for technological adaptation and understanding the strategic environment. Aircraft carriers remain formidable tools for projecting power, but their vulnerability to silent AIP submarines forces rethink doctrinesinvest in advanced detection and reconsider the type of forces used in environments close to enemy coasts. The key lesson was not the symbolic sinking of an aircraft carrier, but the realization that 21st century naval warfare can turn hierarchies upside down that seemed immovable. Those days showed that, in the ocean, silence is worth more than steel, and a small submarine can change the balance of an entire fleet. Image | WikimediaUS Navy In Xataka | The US has detected a naval advantage over China. The catapult of the Beijing aircraft carriers comes with a “factory” failure In Xataka | China has discovered an advantage to win the aircraft carrier race against the US: a “bubble” in its defense

It is a tiny Caribbean island with a unique asset

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The AI ​​is A bottomless well of burning money. There is Very few companies earning money With this technological boom and the fear that everything will be A bubble about to explode The atmosphere flies over. In the midst of this uncertain panorama, an unexpected winner has emerged, a small British island located in the Caribbean Sea. Your secret? It has control of the domain .AI .AI The domain was created in 1995 specifically for Isla de Anguila. Like the .es. With the AI ​​boom, the use of domains. The boom. Perplexity.ai, x.ai, Google.AI… They are some of the AI ​​services that these domains use, but there are many more. According to This report From the Domain Technik hosting service, in 2018 there were approximately 48,000 .AI registered domains. The figure was growing over the years, but in 2023 the thing is triggered and the 354,000 domains are reached, which meant 145% growth with respect to 2022. There are currently 870,000. Taking into account that up to date an average of 1,500 domains are being recorded. Income. As reflected in the Annual Income, Expenses and Capital Report of 2024 of the Anguilla government, in 2022 the income derived from the domain registry. In the world of AI, they are ridiculous figures, but on a small island like eel, it is an important part of its income. Caution. According to the local medium Anguilla FocusJose Vanterpol, Minister of Infrastructure and Communications said that “in the years prior to the true advance of AI, income from domains. However, they are cautious. In statements A AP News Last year, Prime Minister Ellis Webster said that “we cannot predict how long this will last (…) I do not want our economy, our country and all our programs to be based solely on this.” Other cases. Anguilla is not the only case of a domain that unexpectedly becomes a gold mine for a region. He passed with Tuvalu, an archipelago between Australia and Hawaii who saw how The .TV domains became their second source of income. There has also been similar cases With the domains .ly belonging to Libya and. Me de Montenegro. Cover image | Wikipedia In Xataka | There are such monstrously high skyscrapers in China that a new job has emerged: those who take lunch to the last plants

How tiny models are taking the colors to the mastodons of the AI

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AI does not seem to advance much. At least the “big” AI. The best market models are barely managed to make relevant qualitative leaps, and that despite being gigantic and the money, time and talent that companies invest in creating them. We have seen it with Call 4Claude 4 or the recent one (and disappointing) GPT-5. But while Esots gigantic models are less and less surprise, diminutos models are getting more and more. Something (small) is moving. Google moves file Fichita. Last week Google surprised us all with the launch of a small AI model. Well, not: tiny. It could almost be said that it is a “nanomodel”. Gemma 3 270m It is an extremely compact version with only 270 million parameters. How small is that? It is easy to understand when we compare that model with one of the most reputable Open Source models: Call 4: In its Behemoth version, 288b (1,066 times larger) Qwen 3 235b (870 times bigger) Deepseek R1 671B (2,485 times larger) A hyperefficient model. Google’s own ones made it clear that this model cannot compete with the great AI models, but that was not their goal. Its objective is to be hyperefficient and, attention, hyperspepecific. What is pursued here is to turn Gemma 3 270m into the pillar of many models adapted to very specific and concrete tasks. The secret is called fine adjustment. GEMMA 3 270M, insisted these engineers, is a perfect model for fine adjustment processes (Fine Tuning) in very specific tasks. A company (or developer) anyone can take a small model, like this, and train it with their own data and refine it For a specific task following Google instructions For Hugging Face. For example, for generate stories to read children at night (code), to convert confusing text into structured data, to Customize messagesto classify emails or support tickets, or even for Play chess decently. Small models to power. Google already opted for this type of small models when GEMMA presented 3 In March. At that time the versions presented were 1b, 4b, 12b and 27b, being the last one really “great” in absolute terms. The rest could be executed at local in machines with 16GB of graphic memory, such as a Mac Mini M4. It is precisely what we could check with GPT-Oss-20B (the download is about 12 GB), the Open Source model recently launched by OpenAi that behaved remarkably. But even the latter could be considered “great”, and in recent weeks and months we have seen more and more “tiny” models that encourage the market. Gemma 3 270m’s performance is surprising despite its small size. And yet, the best of all is not that: it is his ability to adapt it to a specific task. Examples everywhere. Microsoft has already opted for this type of models with Phi-3 and Phi-4 (14b), which in its launch competed with the Chinese model QWEN-2.5-14B, although these models again tried to raise “mini” alternatives to large models such as GPT-4O or call-3.3 70b. They could be used for fine adjustment, but they were already trained to adjust to various scenarios. Others, more unknown, have gone further: the startup liquid launched A model aimed at visual environments called LFM2 with only 440m parameters, and Nvidia has just launched Nemotron -Nano -9bthat achieves improve QWEN3-8B performance in various benchmarks. Perfect for mobiles and smart watches. Another advantage of these models is that thanks to their small size are able to run on many more devices, however modest. They are ideal to be able to be used for example in our mobiles, smart watches or even more limited products. Its efficiency is the order of the day: how Google highlightedin a pixel 9 pro a quantized version (int4) of Gemma 3 270m can manage 25 “conversations” (chats) using only 0.75% of the mobile battery. It is so small that it can even be executed in a browser tab as if we load a website (heavy) more, such as the example of the web application that generates sleeping stories to children or This other which shows us how the model begins to break, but in a fun way, and whose code is available. A promising future. The Google model, like similar ones, raises that other side that Google spoke. More than an off -road model, what they offer is a base on which to build “the right tool for work.” These types of small models, well refined and trained, can be the basis of the design of all types of small applications and AI agents that then end up interconnecting and that function very, very efficiently. Perhaps it was true that the best essences are sold in small bottles. Image | Amanz In Xataka | If the question is which of the great technology is winning the AI career, the answer is: None

Japan believes to have the largest deposit of rare earths hidden on a tiny island. And it is already date to extract them

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The Rare earth They are an element of great economic and geopolitical value and China stands as the greatest power. To its Japanese neighbors He didn’t make any grace have to depend on them and, after an exhaustive search, a year ago they found the treasure: A huge site of rare earths at the bottom of the ocean. Japan has already set date to start extracting them. January 2026. It is the date on which Japan will begin with the first test extraction, according to Nikkei Asia. They expected to start this year, but the delivery of the necessary duct to reach the deposit did not reach last May and delayed the project for a year. The duct, manufactured in the United Kingdom, has cost 12,000 million yen (about 71 million euros) and will allow them to reach a depth of 5,500 meters. The Chikyu. The Japanese Marine-Terrestrial Science and Technology Agency or JAMSTECfor its acronym in English, will use the chiichyu, the name received by the Japanese drilling boat with which these valuable minerals will extract. In 2022 they already did a test at 2,500 meters deep In front of the coast of the Ibaraki Prefecture, but the challenge they face now is to drill more than double deep: 5,500 meters. If they get it, it would be the first time that rare earths are extracted to so much depth. In the first phase, Chikyu will extract 35 tons of mud. It is estimated that a ton of mud contains about 2 kilos of rare earths, so, in the best case, we could be talking about 70 kilos of rare earths. A key discovery. As we said, Japan found the site almost a year ago in front of the island of Minami-Torishima, located about 1,900 kilometers southeast of Tokyo. The site is located in the exclusive economic zone of Japan, so their extraction corresponds to them. Among the minerals it contains, one of the most abundant would be gadolinio, used in the nuclear industry, and the disposium, used mainly in magnets for electric vehicles. It would also be rich in manganese, cobalt and nickel nodules, key components in the creation of batteries. The amount is not clear and is decisive. At first there was talk of a site of 16 million tons, which would place Japan in third place behind China (44 million) and Brazil (21 million). However, a Analysis of the University of Tokyo He pointed to the loot would be much more juicy: 230 million tons. If confirmed, Japan would overcome China and be placed as the largest reserve of rare earths in the world. Independence. Japan’s efforts to find rare earth date back to 2022 and had a clear goal: to be independent. Currently, Japan depends on imports to meet their needs of rare metals, with 60% of them from China. The Japanese government invested 6,000 million yen (about 42 million euros) in the first extractions and have made it a priority since then. Friction. As we said, China currently has the largest reserve of rare earth and that gives it A huge power. Just a few weeks ago something unusual happened: A combat fleet, headed by two Chinese aircraft carriershe entered the Japanese ZEE near the island of Minamitori. Japan He did not confirm If he presented a formal protest and just declared that he had sent “the appropriate message.” It is not the first time that China enters the Japanese area, nor are the friction between the two countries, But it is certainly a somewhat controversial maneuver given the economic importance of the area. Image | TNFSA In Xataka | Yonaguni’s Japanese island was known for its beauty and Bad Bunny. Now it is a military strength because of Taiwan

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