Drones cannot be stored for more than eight weeks

For years, many European countries filled huge underground warehouses with ammunition capable of remaining operational for decades. In fact, some projectiles stored in Finland They have been waiting for more than 30 years without losing effectiveness. However, the weapons that are redefining today’s conflicts work with software, radios and chips that change at a pace much more similar to that of consumer electronics than that of traditional artillery. This difference is forcing armies to reconsider an unexpected question: how to prepare for a future war when military technology ages almost as quickly as a simple mobile phone. Rearmament enters the era of the drone. Because European defense was based on a relatively simple logic inherited from the Cold War: fill warehouses with ammunition, missiles, mines or artillery shells capable of remaining operational for decades. In countries like Finland, as we said, there are camouflaged deposits with huge reserves of ammunition that have been stored for years and are still fully usable. However, the Ukrainian war has shown that the battlefield of the 21st century increasingly revolves around cheap drones, software and electronic warfare, which has led NATO and European governments to rethink your investments. At the next summit of the alliance, precisely how to shift part of military spending from traditional systems (such as tanks or heavy artillery) will be discussed. towards emerging technologies based on drones, AIs, satellites and digital networks, in an attempt to adapt to a form of warfare where the speed of innovation is as important as firepower. The big problem: drones expire. This strategic change has revealed an unexpected dilemma. Unlike an artillery projectile or missile that can be stored for decades, drones depend on software, communications and electronic components that evolve at a rapid pace. The experience in Ukraine has shown that a dominant model on the front can become unusable a few weeks later due to new jamming systemsfrequency changes or improvements in autonomous navigation. That is why several European officials warn that storing large quantities of drones may be useless: because by the time they reach the battlefield, many will already be obsolete. Even governments calculate that certain models may become outdated in just eight weeksa reality that completely breaks with the classic logic of accumulating arsenals for years for a future conflict. Electronic warfare and useful life of a weapon. The main reason for this accelerated expiration is not so much in the hardware of the drone as in the electronic environment in which it operates. On the Ukrainian front, the constant struggle to dominate the radio spectrum It forces you to continually change frequencies, antennas, radios and control systems to avoid enemy blockade. A drone that works correctly today can stop doing so in a matter of days if the adversary develop new techniques of interference. Therefore, what really ages is not the fuselage of the device but your digital ecosystem: software, data links and navigation algorithms. In this context, the life cycle of a drone is more similar to that of a phone or a computer than that of a tank or a missile, which makes constant updating an essential requirement if the drone is not to become a “brick.” The industrial paradox. This phenomenon places governments before an industrial paradox difficult to solve. To prepare for a crisis, Europe needs an industry capable of producing large-scale drones quickly, but producing them too soon can be counterproductive because they would be left outdated before use. Some manufacturers hold that the only way to solve this dilemma is to buy drones now to train the armed forces, develop doctrines and build an industrial base capable of increasing production in the event of war. However, even the most optimistic companies recognize that multiplying production has limits: They can escalate tenfold in an emergency, but hardly a hundredfold overnight. The military revolution. Despite these challenges, the strategic logic of drones is difficult to ignore. Analysts and companies in the sector highlight that, for the price of two Leopard tanksa country could deploy hundreds of teams of attack drones capable of stopping entire armored units. This economic change is transforming the way we think about war: cheap and numerous systems can neutralize heavy platforms that for decades symbolized military power. For this reason, Bloomberg reported that NATO is studying how to combine traditional hardware with new digital technologies that allow us to close the gap with the United States and adapt to the new operating environment. The future of rearmament. In summary and in view of this new reality, many European governments believe that the solution is not so much to fill warehouses with drones, but create industrial ecosystems able to adapt and quickly produce updated versions when necessary. This implies, a priori, connecting armed forces, software developers, engineers and manufacturers in a continuous cycle of innovation that allows systems to be modified several times a year. Thus, instead of static arsenals, the objective becomes a flexible industry capable of evolving at the pace of electronic warfare. In other words, the great challenge of European rearmament It is no longer just about spending more and more money to stockpile weapons like there is no tomorrow, but about accepting that, in 21st century warfare, even the most decisive weapons can become old before they leave the warehouse. Image | Aerospace, State Border Guard Service of Ukraine In Xataka | Europe has successfully tested a special command against Russia’s biggest threat: underwater drone swarms are ready In Xataka | Europe faces a question it can no longer avoid: how to respond to a war that is rarely declared

A startup from Malaga is the most used European AI app in the world according to Andreessen Horowitz. It’s called Freepik

The venture capital firm Andreessen Horowitz has prepared its already traditional ranking with the world’s top 100 end-user AI applications. There are many predictable ones in the top positions, but we are surprised because among the top 15 is none other than freepikthe platform created by the Malaga startup of the same name. Freepik in the world top. On the list we have many usual suspects (and some not so usual) in the top positions, but one of the big surprises on the list It is the Freepik platformwhich is ranked number 11 and is the only representative of our country in that ranking. But besides that, it is the first of all Europeans included on the list. This specific list is made with the number of unique monthly visits as a criterion. USA dominates. In that list the dominance of apps from American companies is clear, and only the Chinese one DeepSeek sneaks into the top 10 list. Here ChatGPT dominates the ranking with Gemini and Canva completing the podium, but it is surprising to see the relevance of Grok, ahead of Claude. And Google shines with its own light. Within the list, the presence of Google is also notable, which has four tools on that list: Gemini (in number 2 on the list), Google AI Studio (10), Google Labs (25) and the splendid NotebookLM (30). Most of these apps come from the US. Graphic: Xataka with Gemini. Data: Andreessen Horowitz. China tightens. It may seem that China’s role here is less relevant than it should be, but it must be taken into account that many Chinese startups focus on platforms and applications for the Chinese market. Even so, there are clear protagonists such as Capcut and Doubao (ByteDance), Qwen and Quark (Alibaba), Kimi, Kling, Cutout and of course the aforementioned DeepSeek. Europe has its protagonists. Freepik is the clear standout on this list among the European AI applications, but there are others that stand out and manage to make it onto the list such as Photoroom (France), Turboscribe and Veed (United Kingdom), Remove.bg/Kalleido (Austria) and another standout, ElevenLabs (based in London). An evolution towards hybrid apps. As Andreessen Horowitz points out, three years ago the distinction between “native AI” products and traditional software was clear. Today that barrier has disappeared, since massive tools like CapCutCanva or Notion have integrated generative AI as the core of their experience and revenue engine. They have taken advantage of their inertia, they have adapted and they have won. In mobile apps the ranking changes, and a lot. The most popular AI mobile apps in the world based on their number of active users each month is very different. Here Freepik disappears from the list, for example, and it is China that totally dominates with 22 of the 50 apps (44%). The US has 13 apps on the list (26%), while Europe only has four (8%) and other countries share the other 11 (22%). Here China benefits from its huge user base, who also very frequently use AI applications for all types of functions. ByteDance is especially eye-catching and has five apps on the list (CapCut, Doubao, Cici, Hypic and Gauth). Divergence of approaches. In general, all apps try to build user loyalty through their ecosystems and try to integrate more and more things so that one does not leave them. However, there are important approaches among some such as ChatGPT, very oriented towards being a “super app” for mass consumption, and Claude, from Anthropic, which focuses on professional and technical users. AI wants to be almost invisible. AI is no longer a destination, a website to go to, but is becoming part of the experience, a function integrated into the application. Thus, it now resides directly in the browser, in development environments or in office suites. In Xataka | The war between Anthropic and the Pentagon points to something terrifying: a new “Oppenheimer Moment”

Saily’s eSIM now has a discount with Xataka Xtra

At Xataka we travel a lot to cover presentations or learn about new products, often outside of Spain, and from our own experience we have long been running away from unreliable public Wi-Fi networks or roaming (some scary bills have already reached us). Instead, we pull eSIM services like Sailywhich from now on is included as one of the advantages of Xataka Xtra. From the creators of NordVPN: a secure and well-functioning eSIM We decided to try Saily because it has been developed by the team behind NordVPN, which for us is one of the best vpn. They have mixed the privacy and security philosophy that they use at Nord and combined it with data packs at a good price. Some of its main features: Instant connection: If you have ever had to stop at an airport to buy a physical SIM card, you will know how annoying it is. With the Saily app, you choose your destination (there are more than 200 available), you sign up for the plan and you already have data before you even get off the plane. Emphasis on security: Unlike hotel Wi-Fi, where you share a network with strangers and expose yourself to data theft and hacking, using Saily’s eSIM is like navigating a private tunnel. It connects directly to cell towers, so your traffic is shielded by professional mobile security standards. In addition, Saily includes a ‘shield’ in its interface that blocks ads and dangerous websites before they reach your mobile phone, very useful for when you don’t know the pages in another language that you usually visit when you are abroad. No surprises: Saily is prepaid. You choose how many GB you need and how much you want to spend. There are no contracts or fine print, so you will avoid any scares when you return home. Saily eSIM in +200 destinations, prepaid and with an extra level of security The price could vary. We earn commission from these links Why do we like Saily? You can imagine: at Xataka we have tested many eSIMs and other connectivity solutions, but what we like most about Saily is its simplicity: One-click installation: No more configuring complicated APNs or removing and inserting cards with a clip. It is 100% digital. Almost global coverage: Whether you are going to Thailand, Brazil or Canada, Saily offers plans to more than 200 international destinations with very reasonable prices. 24/7 Support: If you have any problem during your trip, the support team responds quickly both by chat and email. One more advantage for being from Xataka Xtra If you are part of Xataka Xtrayou will get a 10% discount on any new international eSIM with Saily. Whether you have a getaway planned or a business trip, this eSIM is one of the best we have tested and thanks to Xataka Xtra you can get it even cheaper. In Xataka | eSIM in Spain: all operators, compatible devices, prices and conditions (2026)

8 GB of RAM has gone from $40 to $130 in five months. It is explained in four words: “It is what it is”

At this point in the film, it no longer escapes us that we are in the midst of a new component crisis. What started with RAM crisis ended up mutating into SSD crisis and any device that has memory or a memory controller. We are in an “unprecedented” situation, said by the companies themselves that manufacture that memory, and although it all started with SSDs and more expensive RAM ‘chips’, now things have escalated. How much? Let’s go with some examples. a rocket. Maybe in Europe they are not the best known, but Framework It is a company that is doing things well. It has a desktop PC, but also something much more interesting: modular laptops. It is not so common to be able to choose all the components of a laptop, and the Framework components do give us that opportunity. The fact is that they are the perfect example to see how the market is. In September they stopped selling standalone RAM modules. They were not the only ones who began to sell computers without memory or with less physical SSD than advertised, but now the next ‘stick’ has arrived: if before 8 GB of RAM cost 40 dollars, now it is 130 dollars. And if you wanted 96 GB of RAM, before it “only” cost you $480… and now you have to shell out $1,340. It’s the market, friend. It is estimated that prices are increasing between 6% and 16% on the company’s equipment. The Framework Desktop 32GB LPDDR5X memory is up $110 since it launched. And the 128 GB one has increased by about $600. The equipment that was already built in the warehouse has not been affected by this, but as the stock runs out, they will inevitably follow the same path. “The price is what it is, unfortunately,” says the CEO of Framework In ArsTechnica we can read that Nirav Patel, CEO of the company, points out that they are trying to solve the problems, but in the end… he is not on his own and the best thing he can do is be transparent. In an interview with BIpoints out that they are looking under the rocks and that if an intermediary tells them “we have found 5,000 RAM modules in a warehouse”, they would buy them without thinking. The problem is accessing new RAM modules… because there aren’t any. Increases. As we say, it is no longer just the RAM that we can see in stores like Amazon, but the components of a computer, a cell phone, a television, a cara modem or… one Raspberry Pi. Since this crisis began, we have talked a lot about how manufacturers were saying that things were tough and it was going to take a while for the market to recover. But the case of Framework helps ground things, and so does Raspberry. Because if Framework uses DDR5 memory, which is the most advanced, Raspberry’s is not the latest generation. However, the company has also had to raise prices. Yes three months ago increased a little, now they have skyrocketed. Its memories are LPDDR4 and the company has published a table that point Because the more RAM your board has, the more the price goes up. Raspberry PI 4 and Raspberry Pi 5 Price increase 1 GB Nothing 2GB 10 dollars 4GB 15 dollars 8GB 30 dollars 16 GB 30 dollars Out of the race. In the end, it all depends on the price of the device. In a 4,000 euro computer that you need for professional work, you have no choice but to pay about 600 more to expand the RAM. But on cheaper equipment, the feeling is that it has a much greater impact. This is the case of the Raspberry. In a 120 euro device like the Raspberry Pi 5 of 16 GB, an increase of 60 euros is stupid. And as the situation lasts a long time, that will be the big problem for many software manufacturers. Apple just present new laptops and the iPhone 17e and, in Spain at least, the price has remained the same. This has not happened in other countries such as the United States, seeing strong increases in some models. Apple, Lenovo, Dell… are companies that have already said that things are bad and the users will have to bear the cost. But there are also voices that point out that not all companies can allow their users to be the ones who ‘swallow’ with the situation. From SMICChina’s large foundry, has already pointed out that there will be hardware companies that will be left out of the game. We are already seeing it: the cheap mobile is suffering the consequences and the Chinese Meizu, which wanted to eagerly return to the Western market, is already backing down. 2027 2028. Valve and its Steam Machine is another example: the console should come out this spring, but not only is there no price, but it is not known when it will arrive. And when will the end of this catastrophic situation be? It’s the million dollar question. Patel comments that the relief will begin in early 2028, a date similar to what other parts of the industry are managing. However, Jensen Huang, CEO of NVIDIA, has already warned that the AI ​​race He has seven or eight years leftand just now they have begun to commission TSMC to begin mass manufacturing of Vera Rubin, their next-generation acceleration platform. It is something that needs memory and only Samsung and SK Hynix (two of the big three RAM companies) are able to supply it right now. In the end, it is about going day by day in this new crisis, but everything indicates that if we need something, it is better to buy it as soon as possible because ifamsung, Micron and SK Hynix they are not doing consumption memoryprices will rise more and more over the next few months. Images | Raspberry, Framework In Xataka | SK is one … Read more

the four things that change in the 2026 declaration

We are going to tell you the main ones news about the 2025 income tax returnwhich is what we will do during 2026. Despite being done this year, it is the 2025 Income because it is the one in which we will catch up with the last fiscal year. The statement, according to Income calendar 2025you will begin to be able to do it on April 8. Like every year, the Treasury has introduced some new features that seek to optimize the declaration or take into account things that were not taken into account before. Therefore, it is important to know them to know if they affect you. Income News 2025 Below we leave you a list with the four new features that you will find in this Income tax return that we are going to carry out in 2026. They are the following: New deduction for low-income workers: Taxpayers who receive income from work less than 18,276 euros per year and do not have other income greater than 6,500 euros may apply a new deduction of up to 340 euros. 340 euros is the maximum for those who receive the Minimum Interprofessional Wage, and it gradually decreases until it disappears at the upper limit of income. Tax incentives for sustainability: Deductions are maintained for the purchase of electric vehicles, installation of charging points and energy efficiency improvements in homes. Thus, if you invest in sustainable solutions, your tax burden will be reduced. Higher taxation for higher savings income: Those who have more, must pay more. Capital income (dividends, interest, capital gains) that exceeds 300,000 euros will be taxed at the maximum rate of 30%. Between 200,000 and 300,000 euros at 27%, between 50,000 and 200,000 euros at 23%, between 6,000 and 50,000 euros at 21%, and those up to 6,000 euros only 19%. Changes in personal income tax brackets and regional particularities: At the state level, the last section of the savings base has been raised from 14% to 15%, and adjustments are contemplated for taxpayers residing abroad. In addition, some autonomous communities may introduce additional modifications that affect the final fee. Of course, the structure of sections of the general tax base is maintained, these small changes have simply been introduced. In Xataka Basics | IRPF withholding calculator 2025: how to use it online to know your minimum withholding recommended by the Treasury

enter Iran to remove a buried “treasure” of 441 kg that gives meaning to the war

Since 1921 when the Italian general Giulio Douhet argued that bombers could win wars by destroying the “vital centers” of a country, air power has fascinated strategists and politicians. However, more than a century of conflict has left a lingering paradox: even the most devastating bombing campaigns in history have, sooner or later, required something much riskier than airplanes to truly decide a war. Especially if, as in almost all wars, one seeks to give meaning to the nonsense. The historical limit. They told it this morning in a special report from the Wall Street Journal. The war started with intense bombing campaign on Iran has once again put on the table an uncomfortable lesson from military history: planes, missiles and bombs can destroy infrastructure, armies and arsenals, but they rarely bring down a regime on their own. Despite the wishes expressed in Washington to bring about political change in Tehran, the military commanders themselves have lowered expectations and they have insisted that the real objective of the campaign is to degrade Iranian offensive capabilities, whether missiles, drones or naval forces, and to wear down its nuclear program. The reason is simple. Even after weeks of attacks, the power structures of the Iranian state they are still intactbacked by military and paramilitary forces that number hundreds of thousands of troops and whose main interest is to maintain the system as it is. Nor does historical precedent help support the idea that strategic bombing alone can decide a war: neither World War II, nor Kosovo, nor Libya. they managed to change governments only from the air. In all cases there were forces on the ground, local insurgencies or invasions that ended up tipping the balance. Members of the US Army using nuclear material detection tools during an exercise No main objective. That air power limit has a immediate strategic consequence: Although the bombings may reduce Iran’s military capacity, they do not guarantee that what gave rise to the conflict will disappear, if there ever was something tangible. The central official concern remains nuclear material that the country has accumulated for years and that represents a latent option to manufacture atomic weapons in a short time. The air campaign can destroy facilities, seal access or delay the program, but it cannot guarantee anything much more complicated: locate, control and neutralize fissile material that already exists. The dilemma is especially serious if the regime survives the conflict or if the Iranian State enters a phase of internal chaos, because that scenario would open the door for some of that material to end up in the hands of regional militias, non-state actors or even black market networks. In other words, war can weaken the adversary without solving the problem that caused it. U.S. Army Soldiers with the 128th Chemical Company, 337th Engineer Battalion conduct reconnaissance in an underground tunnel during an exercise in Lithuania in 2025 The buried “treasure” that gives meaning to war. At the center of this dilemma is a specific piece of information that summarizes all the strategic tension: some 441 kilograms of uranium enriched to 60%, enough to produce material for various nuclear weapons if taken to levels of military purity. This material, stored mainly in underground facilities deeply protected, is the true objective that explains the military campaign. As long as it exists and remains out of control, any aerial victory will be incomplete. The paradox is that this nuclear “treasure” is designed precisely to withstand the type of war that the United States and Israel have been fighting: buried facilities, protected by layers of concrete and rock, designed to survive bombings. Destroying buildings is relatively easy, but destroying or capture nuclear material stored underground is another story entirely. The last mission: enter Iran. Thus we come to a stage which is closer than ever to the rhetoric that the United States has tried to inoculate the planet through a species trailer hollywood. Because an idea has begun to appear that until recently seemed extreme: the possibility of a ground raid of special forces to physically seize Iranian nuclear material or neutralize it in situ. The reasoning is brutally simple. If bombing cannot guarantee control of the enriched uranium, someone will have to go looking for it. They counted the TWZ analysts that, in American strategic circles, there is talk of operations in which elite commandos would penetrate facilities underground, they would secure the material and decide on the spot whether to transport it out of the country or reduce its purity to make it unusable. There is no doubt, it would be a extremely complex operationalmost movie makerwhich would combine special forces, nuclear experts and possibly specialized technical personnel, with the aim of securing material that cannot simply be destroyed with explosives without causing radiological risks. Possible, but almost suicidal. The problem is that such a mission would be one of the military operations riskiest imaginable. The material weighs hundreds of kilos and it is probably stored in armored containers, which would greatly complicate its transportation. The facilities are buried, protected and defended by forces that consider these facilities one of the country’s most important strategic assets. To access them it may be necessary open tunnels or remove tons of earth and concrete as the Iranian army tries to react. The longer the assault force remains on the ground, the more likely the Iranian forces will organize a counterattack with artillery, missiles or ground units. Added to this is the difficulty of infiltrating and extracting a relatively large contingent of operators loaded with specialized equipment in the middle of an open conflict. The logic that moves it. Despite everything, strategic logic pushes towards that direction. If nuclear material is dispersed, hidden, or moved to multiple locations, the problem will multiply and any attempt to neutralize it will be even more difficult. Furthermore, bombing convoys or depots from the air could disperse radioactive material without eliminating the threat. In that context, physically securing uranium becomes the solution to … Read more

In 1850, Almería inaugurated one of the largest hydraulic works in 19th century Spain. It was a complete disaster

It is May 8, 1850, Níjar (Almería). Although the promoters have been trying for months, finally the inauguration of the Isabel II reservoir will not have the physical presence of the Queen which gives it its name. But they are not going to let that ruin the moment, their moment. We talk about what may be the largest hydraulic work of the Andalusian 19th century and one of the most ambitious on the peninsula: 35 meters of stonework built at will by more than a thousand private investors that culminate the old dream of the Duchess of Abrantes, to build a dam along the Rambla del Carrizal. A dam doomed to failure. Money in abundance. In 1821, in the heat of the mining boom in the Sierra Almagrera of Almería, Diego María Madollel He created ‘Irrigation of Níjar’ and obtained tax exemptions from the crown. The idea was simple: build a stone structure 44 meters long and 35 meters high with the idea of ​​irrigating more than 18,000 hectares in Campo de Níjar and Campohermoso. Over the next 40 years, Madollel would learn that there are many ways to fail. The first was almost immediate. The second took almost twenty years and the third, in 1842, with the constitution of the Níjar Reservoir Company, seemed to be the good one. The businessman gathered more than a thousand shareholders from Almería, Murcia, Málaga, Madrid and Valencia (people who had become rich from the mines, wanted to invest, but did not know much about the matter) and got the state to declare the project a ‘public utility’; but, five years later, the project could not get off the ground. It wouldn’t have started, but In 1848 the drought began. A persistent, sharp and prophetic drought… but that promoted the construction of the swamp. Madollel saw his opportunity and began selling water rights. The construction moved forward, the Murcian Jerónimo Ros took control of the construction and by 1857 not only the dam was finished, but also a very complex system of irrigation canals and pipes. Madollel had built a hydrological Ferrari: but the road was not in condition to go more than 20 kilometers per hour. How much everything goes wrong. Despite the very long development, the promoters did almost everything wrong. To begin with, they did not carry out hydrological studies of the area and that prevented them from realizing that the riverbed did not have enough flow to fill the reservoir or to irrigate 18,000 hectares. Furthermore, they did not realize that the regime of the boulevard was ‘torrential’: when it rains, it does so torrentially and that causes enormous amounts of sediment to be washed away. By 1871, the reservoir was completely blocked. The failure was enormous. Or almost. Because, although it is true that today the prey is a relic for hikersthe truth is that Madollel did have some vision. Today the Campo de Níjar is the epicenter of one of the largest seas of plastics in the country. The hydrological pressures are the same or worse, but this shows that it doesn’t matter how many times the climate twists our hand, the man is there to try again. Image | ANE In Xataka | The reservoir that would “never be filled” is opening its floodgates: 23 years later, the largest swamp in Western Europe is completely full

discounts on Kindle readers, Apple, Samsung devices and more

From this past midnight until next Monday, March 16, Amazon will be celebrating its Spring Sale Festival. With discounts in all its departments, this campaign is a good time to get technology at the best price. Below we offer you a selection with the best bargains that we have found in these first hours. Furthermore, in our liveyou will be able to discover the new offers that are coming out. Amazon Kindle Paperwhite (latest generation) The price could vary. We earn commission from these links amazon Kindle Paperwhite by 129.99 euros: six inches and with a battery life of up to 12 weeks. Smart TV TCL 65Q7C by 799 euros: 65-inch QD-MiniLED and with Google TV. Tablet Samsung Galaxy Tab A11+ by 189 euros: 11 inches and with fast charging. Wireless headphones Apple AirPods 4 with noise cancellation by 149 euros: with H2 chip and spatial audio. Activity bracelet Xiaomi Smartband 10 by 36.99 euros: 1.72 inches and with more than 150 sports modes. Amazon Kindle Paperwhite Kindle is the leading brand in ebook readers and now, at Amazon’s Spring Sale Festival, you can get one of the best-selling models on sale, the Kindle Paperwhite. It has gone from costing 179.99 euros to 129.99 euros. This is the Kindle fastest to date. It comes with a six-inch screen with higher image contrast and 25% faster page turns. In addition, its ultralight design makes it a perfect option to take with you on a trip. Its battery is charged via USB-C and lasts up to 12 weeks. Amazon Kindle Paperwhite (latest generation) The price could vary. We earn commission from these links Smart TV TCL 65Q7C If you are looking for a TV great for setting up your own home theater, this one from TCL is a good offer today on Amazon. It has applied a 27% discountremaining available for 799 euros compared to the 1,099 euros recommended RRP that it has. This TV mounts a 65 inch QD-MiniLED panel and with 4K resolution. If you are going to use it for gaming, it is also perfectly fine thanks to its 144 Hz refresh rate. As for the audio, it is signed by Bang & Olufsen and the operating system under which it works is Google TV. TCL 65Q7C 65″ QD-Mini LED The price could vary. We earn commission from these links Samsung Galaxy Tab A11+ Tablet If you were looking for a tablet and were waiting for an offer to decide, today you have this Samsung Galaxy Tab A11+ with a 24% discount on Amazon. It has gone from costing 249 euros to 189 eurosduring this Spring Sale Festival. This Samsung Galaxy Tab A11+ has a 11 inch screen and comes with 128 GB of internal storage (expandable up to 2 TB via microSD card) and 8 GB of RAM. Its battery supports fast charging at 25 W and integrates four Dolby-compatible speakers. Samsung Galaxy Tab A11+ 128GB The price could vary. We earn commission from these links Apple AirPods 4 Wireless Noise Canceling Headphones If you have been wanting to buy AirPods for a long time, but you always think they are expensive, now you have them on sale AirPods 4 with noise cancellation. They have gone from costing 199 euros to 149 euros during Amazon’s Spring Sale Festival. These AirPods 4 They adapt perfectly to your ears and this model on offer is the one that incorporates active noise cancellation. They ride the powerful H2 chipwhich allows you to enjoy adaptive and spatial audio. Your case charges via USB-C and wirelessly. Apple AirPods 4 Active Noise Cancellation The price could vary. We earn commission from these links Xiaomi Smartband 10 activity bracelet For those who usually do sports daily or who want to keep a record of their daily activity, this Xiaomi Smartband 10 It is a good option. On Amazon, you can now buy it for 36.99 euros compared to the almost 50 euros that it usually costs. This Xiaomi Smartband 10 It is an activity bracelet with 1.72 inch AMOLED screen. It comes with over 150 sports modes and is 5 ATM water resistant. Its battery offers a range of up to 21 days. XIAOMI Smartband 10, Activity Bracelet The price could vary. We earn commission from these links Some of the links in this article are affiliated and may provide a benefit to Xataka. In case of non-availability, offers may vary. Images | Webedia, Amazon and Freepik In Xataka | Best sound bars in quality price. Which one to buy and seven recommended models from 99 euros In Xataka | The best mobile phones, we have tested them and here are their analyzes

For 45 years we thought we understood how stars like our Sun rotate. A Japanese supercomputer has just cast doubt on it

Understanding how stars rotate may seem like a technical detail, but it is actually a central piece to understanding their evolution. For 45 years, theoretical models held that Sun-like stars would eventually change the way they rotate as they aged. The idea was that, as it lost speed over billions of years, the spin pattern would reverse and the poles would rotate faster than the equator. Now, new research from Nagoya University suggests that that prediction might not come true. The findings. The work, published in Nature Astronomysuggests that solar-type stars could maintain the same rotation pattern that we observe in the current Sun throughout their lives. That is, the equator would continue to rotate faster than the polar regions even as the star slows down with age. The simulations carried out by the team indicate that magnetic fields play a decisive role and could prevent this regime change that was taken for granted in theoretical models for decades. How a star like the Sun actually rotates. Unlike the Earth, which rotates as a solid body, the Sun is made of extremely hot plasma. That causes different regions to spin at different speeds. In the case of the Sun, the equator completes one revolution approximately every 25 days, while the regions near the poles take about 35 days. This phenomenon is known as solar-type differential rotation. For decades, theoretical simulations predicted that this pattern would not be permanent. As stars age and their global rotation slows over billions of years, the plasma flows within them should reorganize. Predictions indicate that there would come a time when the behavior would be reversed: the equator would rotate more slowly and the poles would rotate faster, a regime that the researchers called differential anti-solar rotation. The unexpected role of magnetism. The new simulations suggest that the scenario predicted by theoretical models for decades may not come to pass. According to the results of the study, stars similar to the Sun would maintain the same type of differential rotation throughout their lives. Even if the star slows down with age, the equator would continue to rotate faster than the poles, rather than reversing the pattern as proposed in previous simulations. A supercomputer on stage. To reach that conclusion, the team turned to FugakuJapan’s most powerful supercomputer, installed at the RIKEN research center in Kobe and operational for shared use since March 2021. With its help, researchers carried out an extremely detailed simulation of the interior of solar-type stars. Each simulated star was divided into about 5.4 billion calculation points, a much higher resolution than that used in previous work. This level of detail is important because previous simulations worked at much lower resolutions. Under these conditions, the magnetic fields tended to disappear artificially within the model, which led to underestimating their influence on the internal dynamics of the star. In the new simulation, however, the magnetic fields remained stable and showed a clear effect: they help prevent the reversal of the rotation pattern. The implications. Understanding more precisely how Sun-like stars rotate is key to interpreting their magnetic activity over time. This aspect is related to well-known phenomena on our own star, such as the approximately 11-year solar cycle that regulates the appearance of sunspots and episodes of magnetic activity. A better understanding of these processes could also help improve stellar evolution models used by astronomers to study distant stars. Images | POT In Xataka | PLD Space has raised 180 million euros with Mitsubishi at the helm: the Spanish space startup grows with Japanese money

transform Madrid’s L11

The tunnel boring machine that will open the new Madrid Metro underground corridor between Carabanchel and Retiro is now is in its last tests before starting engines. It will be the decisive step for the L11 project to continue on its course. We tell you all the details. Why does it matter? The expansion of line 11 It is one of the most relevant transport infrastructure works being carried out in Madrid today. The new section will connect by metro two ends of the city that are currently poorly connected: the south, from Carabanchel, to the east, arriving at Conde de Casal in the Retiro district, passing through stations such as Madrid Río, Arganzuela, Palos de la Frontera and Atocha. When operational, which is planned for late 2027 or early 2028, it will greatly benefit transportation in the city. The machine behind the tunnel. Mayrit is the name of the tunnel boring machine which will run most of this section. Manufactured in Germany for almost two years, it measures 98 meters in length, 9 meters wide and weighs 1,500 tons. He arrived in Madrid by land and sea after a complex transfer, and It has been being assembled for months at the Comillas station, the point from which it will begin its advance. According to account the medium 20 Minutes, the machine has been in the technical and hydraulic testing phase for several days, so everything indicates that it could soon be put into operation. In fact, the Ministry of Transport expects it to be before the end of March. How it works and what makes it special. The operation of Mayrit is interesting, since in addition to drilling, it is advancing and, in the process, building the tunnel. Just like account In the middle, its cutting wheel incorporates 54 discs, 172 picks and 24 battens, tools that erode the ground and remove the excavated material. At the same time, the machine places rings of concrete segments that form the final structure through which the trains will circulate. In addition, it has a system of locks that allows it to be stopped at any point during the excavation in the event of a breakdown, without having to wait to reach a station. The tour. Mayrit will depart from Comillas and will have 5,227 meters ahead of it to its extraction point, located beyond the M-30 to avoid affecting the Colonia del Hogar Ferroviario and Darwin Park, in Moratalaz. According to pointed In the middle, the route is divided into four segments: Comillas-Madrid Río (1,114 meters), Madrid Río-Arganzuela (1,613 meters, the longest), Arganzuela-Palos de la Frontera (709 meters, the shortest) and Palos de la Frontera-Atocha (1,436 meters). To all this we must add the final 355 meters between Conde de Casal and the extraction well. At its pace, which is about 15 meters a day, the tunnel boring machine should reach Madrid Río this summer. The traditional method. Before Mayrit enters the scene, part of the route (specifically the section that connects Comillas with Plaza Elíptica) is using the Belgian method (also called in Spain the classic Madrid method). This system, based on manual excavation and progressive shoring, advances about 50 meters per month. The tunnel boring machine, under normal conditions, will drill 450 meters per month, so the difference is abysmal. Maintenance stops. According to account 20 Minutes, upon arriving in Madrid Río, Mayrit will make a technical stop to check its cutting wheel and replace worn parts. The duration of this stoppage will depend on the state in which the machinery arrives and may extend to other parts of the system. It is expected that this type of checks will be repeated at each station, although the machine can stop at any point if necessary. The total term. With all the stages added up and taking into account the maintenance stops, the general director of Collective Transport Infrastructure of the Community of Madrid, Miguel Núñez, estimated that the complete excavation between Comillas and Conde de Casal will take between 13 and 14 months. If the start-up occurs before the end of March, calculations place the end of drilling around May or June 2027, although the opening to the public of the new section will take a few more months, as it requires completing the installations, equipment and operational tests. Cover image | Madrid Metro In Xataka | Madrid wants to build a garbage can in a residential neighborhood. Now he has thousands of angry neighbors

Log In

Forgot password?

Forgot password?

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

Your password reset link appears to be invalid or expired.

Log in

Privacy Policy

Add to Collection

No Collections

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