idea

Samsung has shown a new device with AI. It is not what we imagined and is reminiscent of an Apple idea

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When they tell us about a new device with artificial intelligencethe normal thing is that we think of a mobile phone, a laptop or, at most, the disappointing Rabbit R1 either Humane AI Pin. That’s why it’s interesting to stop when a company like Samsung teaches something that doesn’t quite fit into any of those boxes. What we have seen this time is not a common gadget, but a rather revealing clue as to how the South Korean giant could imagine a possible home interface of the future. What Samsung has shown in Milan is called Project Luna and, at least for now, it moves in the field of concepts. It is a desktop device with a mobile circular screen that acts as a head and can rotate to face the user. The company’s materials also show that this head not only rotates, but also changes orientation depending on the angle it needs. With that combination, Samsung draws a home device that wants to look less like a conventional speaker and more like an object designed to interact with the user. A concept that points further than a speaker One of the scenes that Samsung has used to show Luna places it on a kitchen table, connected to the user’s smartphone, playing music with an interface reminiscent of a record player and answering questions both by voice and on screen. In that same demonstration he also appears controlling the lighting in the room and suggesting food options for the day. Additionally, there are projectors scattered around the kitchen that display data such as the calories in the recipe or a calendar notice for a dinner party. And that’s where Luna begins to tell us something more interesting than her own design. In an interview with Fast CompanyMauro Porcini, Samsung’s chief design officer, explained that this concept represents more of “a vibe, a feeling of the type of design language we want to use.” The phrase matters because it lowers any immediate commercial reading and forces us to look at it differently. Rather than anticipating a launch, the firm seems to use this project to teach the type of language and relationship with the user that it wants to explore in future AI devices. And at that point it is difficult not to remember Apple. In August 2024, Mark Gurman told Bloomberg that the company was moving forward with the development of a home desktop device that would combine an iPad-like screen with a robotic arm. The proposal, according to that informationwas conceived as a home control center, a tool for video calls and a remote surveillance system, with a screen capable of tilting and rotating 360 degrees using actuators. It has not materialized as a product, but there is some underlying parallel with what Samsung is now teaching. The most interesting reading may not be in looking for an exact equivalence between what Samsung has taught and the rumors about Apple, but in stopping at the underlying trend. What we’ve seen suggests that home AI could end up taking a much more tangible form than the assistants or screens we already know. We are not yet talking about a consolidated category, far from it. But it does provide a fairly serious clue as to where the industry could move in the coming years. At this point, the temptation is to think: okay, that sounds good, but where exactly does something like this fit into our daily lives. Because we can imagine it on the kitchen counter, recommending a mealanswering a quick question or accompanying us while music plays, and the scene is even convincing. The problem is that that same house is already full of devices that already cover a good part of all that. Images | Samsung In Xataka | Meta spent 2 billion on a Chinese AI startup. China is clear that it was a conspiracy

Drink water right before going to sleep? Science has finally clarified whether it is a good idea or a terrible enemy of sleep

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Before going to sleep, some people may have an almost standardized ritual in which they should drink one or two glasses of water, and also have a backup on the bedside table in case they get thirsty in the middle of the night. But there are also many questions about whether it is positive to drink water before sleeping for eight hours or if it is counterproductive by forcing us to get up in the middle of the night. And here science has something to say. It has benefits. What is clearly known is that during the night our body does not go into a total pause, but rather continues with an active metabolism even though it is attenuated. That is why we lose approximately half a liter of water simply due to evaporation when breathing and sweating, and to compensate for this, hydration can be the best ally. It is investigated. A Japanese studio published this same year analyzed a group of middle-aged men to conclude that drinking 280 ml of water just before going to bed significantly reduces morning depressive mood and improves well-being upon waking up. But it is not the only one, because a 2025 crossover trial with 15 healthy adults found a relationship between drinking fluids before sleeping and the duration and quality of sleep. REM phasewhich is what makes us truly rest. And it makes sense, because adequate hydration favors the release of vasopressin, a key hormone for regulating the biological clock and preventing tissue dehydration during deep sleep. And it is essential, because it can translate into less fatigue and headaches in the morning. He has problems. It will not always be beneficial to have this habit, since the main enemy of drinking water at night is nocturiawhich is the need to wake up to urinate during the night. And although the total time we spend awake is not drastically altered, because it is only a few minutes, there is an interruption in sleep. It depends on the quantity. Logically, drinking a glass of water is not the same as drinking a whole bottle before going to sleep. That is why when you go over half a liter of water there is a possibility that some pre-existing problems such as chronic insomnia will worsen or even increase the risk of falls when getting up in the dark. How to do it. There are a series of tips that we can follow to stay hydrated during sleep and they are summarized in the following points: You should limit yourself to drinking around a quarter of a liter of water in the final part of the day to avoid overfilling your bladder. The last glass of water should be drunk two hours before going to sleep. Maintain good hydration throughout the day to avoid reaching the end of the day with a major hydration problem. Images | krakenimages.com on Freepik In Xataka | There are people obsessed with magnesium as a supplement when the best way is to put it directly into your diet

China has just launched its first undersea data center with total energy autonomy. The idea makes more sense than it seems

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In the AI ​​race, having a robust data center infrastructure to power it is essential, but first you need energy to power it all. The United States may lead the chip industry (at least, the strategic ones), but China follows closely at an unstoppable pace and furthermore, has the energy. And he is already beginning to connect the dots, showing off his technical power and ingenuity: already It has the largest data center in the worldis also a pioneer to submerge them under the sea. Now it has taken a twist with the first underwater data center that ‘drinks’ directly from the wind that just opened. This project represents the perfect union of two of China’s strategic priorities: digital sovereignty and carbon neutrality. By placing computing infrastructure on the seabed and powering it directly with clean energy on siteChina is solving one of the great current technological problems: the insatiable energy consumption of AI and Big Data. The project. About 10 kilometers off the coast of Shanghai, at the bottom of the East China Sea, a steel cylinder receives electricity directly from wind turbines and is cooled with sea water. It is the Lingang Subsea Data Centeran ambitious project promoted by Shanghai Hailan Cloud Technology (HiCloud) and built by CCCC Third Harbor Engineering. It consists of a series of data storage and processing modules encapsulated in watertight and submerged containers, which are connected via two 35 kV submarine cables to offshore wind turbines operating off the coast of Shanghai. With a planned capacity of 24 MW in two phases, the first is already operational: it has a capacity of 2.3 megawatts and includes a ground control center, a vertical data module installed under the sea and two main 35 kilovolt submarine cables. Why it is important. In addition to the fact that it does not occupy land, in cities as crowded as Shanghai it represents a valuable saving in land and that it can be installed close to where it is needed (if there is a coast, obviously), because it solves at the same time three structural problems of the sector: Refrigeration. Seawater acts as a constant and free heat sink, eliminating the need for industrial air conditioning systems that consume 40 to 50% of electricity. The metric that measures the energy efficiency of a data center by comparing the total energy consumed versus that used purely by the servers is the PUE, which for a standard data center on land is an average slightly higher than 1.5. The project promises to lower it to a figure not greater than 1.15. Without consumption of fresh water. Traditional data centers evaporate millions of liters of water to cool their servers, but this uses thermal exchange with the ocean, so it does not consume water resources. Take advantage of the surplus from wind power. One of the handicaps of wind energy is that generation depends on the wind and not on demand, so if you do not have a battery, the energy that is not consumed is wasted. Thanks to this direct connection, the data center absorbs wind production in real time, functioning as a constant consumer that reduces the waste of renewable energy due to lack of destination, In figures. The magnitude of the project, with some official numbers: The budget is 1.6 billion yuan, about 200 million euros. Total planned operational capacity of 24 MW (2.3 MW in the first phase). The design PUE is less than 1.15. More than 95 percent of electricity comes from renewable sources. Context. The name of HiCloud is not new because in fact it is an old acquaintance: it is the person behind the underwater prototype in front of Hainan which began to install in 2021. However, the international reference is the Natick project from Microsoft (2013–2024), which demonstrated the potential of underwater centers: only 8 of the 864 servers failed, a much lower mortality rate than that of any conventional data center in the same period and also got a very low PUE of only 1.07. Despite this, Microsoft shelved the matter: viability in terms of costs and maintenance is another story. However, the Lingang project has top-level institutional support: is present on the List of Green and Low Carbon Technology Demonstration Projects of the NDRC, China’s top economic planning body. How they have done it. Servers are placed in pressurized steel cabins filled with inert gases to prevent corrosion and fire with a design that maximizes interior space and minimizes the impact of waves. Heat is dissipated by pumping seawater through radiators located behind the racks. The most complicated operation was raising the cabin in the open sea: the separation between the legs of the support structure and the steel piles on the seabed was only 0.18 meters and the maximum allowable deviation was 10 centimeters, so GPS and the Sanhang Fengfan crane vessel were helped. Roadmap. The project follows a staggered progression that leaves certain unknowns. First was the prototype in Hainan (2021-2024). In 2025 the project began in Shanghai, whose phase 1 concluded in October of that year and it has just been launched a few weeks ago. The key phase that will take capacity up to 24 MW has no official public date. Of course, the consortium of companies made up of HiCloud, Shenergy Group, China Telecom Shanghai, INESA and CCCC Third Harbor Engineering signed a cooperation agreement in October 2025 to scale to 500 MW linked to offshore wind, although where and when is unknown. Yes, but. That 2.3 MW of phase 1 is practically a demonstration, not commercial infrastructure as a large conventional data center operates between 50 and 500 MW. And in addition, it has to resolve the issues that Microsoft’s Project Natick left unresolved, such as underwater maintenance: HiCloud has not published protocols or long-term repair costs. And scalability to 500 MW is at the moment more of an intention than a project In Xataka | Where you see a mountain, China sees a … Read more

A user has been powering his house with 1,000 laptop batteries and solar panels for 10 years. Others are already trying to copy the idea

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Second Life Storage is one of those places that seems to belong to another era. In the era of Reddit and Discord, this is a forum, one dedicated to a single topic: batteries. One of its users is Glubux, and it has been sharing progress on a most curious DIY project for years: a house powered by more than 1,000 batteries. The key is that they are recycled laptop batteries. And he has created a school. Glubux Powerwall. On November 9, 2019, Glubux opened a forum entry in which he shared some photos and detailed his project: he had started collecting laptop batteries years ago, he had collected about 650 and was doing tests to check stability, performance and possibilities. Little by little he was sharing news such as the packs – cells – that he was creating with dozens of interconnected batteries with a great objective: to power the house with standard lithium batteries. These cells are not created by chance: after dissecting each laptop battery, it classifies the units by capacity and rebuilds them into stable modules. This is how it started in 2017 | Photo: Glubux The idea was to create a large system that would work together like a conventional battery, but using those recycled ‘batteries’. He tried it and ended up connecting several packs to the home power. Less than a month later, Glubux commented that it had even successfully connected a vacuum cleaner for a total of 1,200 W of power and that there were no symptoms of heating. It was time to move on. This is how it was in 2024 | Photo: Glubux The shed. But of course, if batteries have taught us anything, it is that handling them is complicated and dangerous if something goes wrong. No matter how much care we take, something so homemade is likely to fail at some point, which could start a major fire. Having something like this inside the house is crazy, so Glubux created a very small shed on his plot, but enough to house the growing collection of more than 1,000 batteries. Last year we already commented that the latest of their reports was that none had shown signs of deterioration (such as swelling) and, after eight years, they had not had to change any cells. Now, his house was running on solar panels that sent power to homemade recycled battery cells. Photo: Glubux Feeding… everything. After expanding the solar installation (24 panels with 440 W), the storage capacity increased to 56 kWh and the system, which operates at 24 volts to feed A 3 kVA converter can power the house with its lights and appliances without problem. But it is not the only thing, since it also charges both a Tesla and an electric Nissan. Creating school. Glubux hasn’t participated in his thread for a while, but that doesn’t mean he’s dead. Other users have been sharing their adventures when creating similar systems. Some were even more veteran and had more batteries, and the most interesting thing is that they have created a space in which advice is given about the cells, the capacity of each of the cells or how to join batteries so that the systems are stable. Other similar projects | Photo: Daniel88 Not so homemade. These projects are almost as exciting as finding yourself in 2026 a furo so rudimentary that it still has an active community, but it must be said that powering the house with a wall of conventional batteries is not so exotic. In fact, Panasonic recently said it was reaching the limit of its capacity to produce battery cells for data centers. These are cells very similar to those of the Glubux project although, obviously, initially created to power systems such as data center racks. They are still systems made up of packs made up of hundreds of ‘batteries’. And now I can only wonder if Glubux’s silence is because it is building its own data center next to the shed. Images | Glubux, Daniel88

We thought that the heart of the Milky Way was an immense black hole. Mathematics has changed this idea for us

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Science advances, and this also means rewriting what we believed to be ‘absolute truth’ within different fields of knowledge. For example, for decades the scientific consensus has been unwavering in pointing out that in the heart of the Milky Way, about 27,000 light years from Earth, there is a huge supermassive black hole. But now this is not so clear thanks to a new study who has “seen” something even more interesting in this location. Breaking rules. It has been a study published this year the one who has proposed that the “monster” that governs our galaxy is not a black hole, but an ultradense core of dark matter. A compact object of almost four million solar masses that a priori would be composed entirely of fermionic dark matter. How do they know it? To support this bold claim, researchers have used the RAR model. This is very important, since, unlike the classical theory, which separates the central black hole from the halo of dark matter that surrounds the galaxy, this new approach unifies both concepts into one. In this way, it is proposed that dark matter particles are highly concentrated in the galactic center, forming a compact and massive nucleus, while on the outskirts they are diluted, forming the well-known and extensive dark halo. The big question. If it’s not a black hole, why does it “look” like one? And it is something normal that passes through our minds, especially after the year 2022 when the Event Horizon Telescope (EHT) gave us the first “photograph” of Sgr A* where a bright ring could be seen surrounding a deep central darkness. And although this could be definitive proof that there is a black hole at the center of our galaxy, this is not the case. This is where previous key work published in 2024 comes into play, which pointed out that a dense core of fermions illuminated by an accretion disk generates a “shadow” visually indistinguishable from that cast by a classical black hole. That is, this dark matter is disguised to be able to deceive our telescopes when taking different measurements. Mathematical tests. In addition to this interesting theory, the scientific team has subjected it to a rigorous statistical examination using complex simulations and Bayesian analyzes to verify its robustness. Here they have shown that this dark matter core perfectly explains, for example, the orbits of the S stars that orbit the galactic center. But this unified model also fits precisely with the most recent data on the galaxy’s outer rotation curve provided by the Gaia DR3 mission. You have to look better. Although the mathematics add up and the model passes the statistical tests with flying colors, dethroning a supermassive black hole from the scientific imagination is not an easy task. And it is somewhat relevant, since the dark matter core lacks an event horizon, which is the absolute gravitational boundary of no return from which any element would be absorbed by the black hole. To know once and for all whether we are dealing with a black hole or a giant ball of dark matter, astronomers are aiming for the next generation of observations. We need to track what happens a little closer to the absolute center and future data of the GRAVITY interferometer (installed on the Very Large Telescope) will be key to detecting the subtle orbital deviations in the closest stars that would end the debate. Images | Dns Dgn BoliviaIntelligent In Xataka | We have a serious problem in our plans to colonize Mars: the astronauts’ blood is mutating

With the arrival of good weather in Ukraine, Russia thought it was a good idea to bring out its hidden tanks. It wasn’t at all

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In 2022, many analysts assumed that tanks would remain the undisputed symbol of land power, but four years later the battlefield has evolved to the point where multi-ton vehicles can be neutralized for systems that fit in a backpack and cost thousands of times less. A return at the worst time. Winter is giving way to spring in Ukraine, and Russia has decided it was time to bring out its armored vehicles again after almost one year of limited useconvinced that she could regain initiative on the front. However, this movement has collided head-on with the current reality of the battlefield: an environment saturated with drones, remote mines and sensors where any concentration of vehicles becomes an almost immediate target. What on paper should have been an offensive reactivation has translated, in its first stages, in massive losses of material, with mechanized attacks that have ended in authentic “massacres” in a matter of minutes. From hiding to exposing yourself. For much of the last year, Russia had chosen to reduce the use of vehicles and advance with small groups of infantry to minimize their exposure. That tactic, although costly in lives, was more difficult to neutralize in a battlefield dominated by drones. But the enormous human wear and tear (with hundreds of thousands of casualties) has forced Moscow to rethink its approach. The return to mechanized attacks is not so much a choice as a necessity: replacing men with machines, even if that means assuming a new type of vulnerability. The Soviet heritage. It we have counted on other occasions. To sustain this change, Russia has begun to turn to its deeper reservesreactivating T-72 tanks from the 1970s and 1980s that remained in storage for years. This movement reveals an important turn in the contest, because it is no longer about deploying the best available, but rather to maintain volume at any price. The Russian military industry is still capable of regenerating units, but increasingly with older materialmore heterogeneous and less adapted to an environment where threats come from above and not from the front. A battlefield that does not forgive armor. The problem from the Moscow sidewalk is that the context has radically changed. Drones, capable of detecting, tracking and attacking vehicles with great precision, have turned mechanized advances into operations andxtremely risky. Added to this are remotely deployed mines and coordinated attacks that turn any movement in a trap. What was once the spearhead of offensives now behaves like a slow, visible and predictable target, especially when deployed in a group. Hit logistics to wear out. In addition, a parallel strategy is added to this direct pressure on the vehicles: the continuous attack to the rear. The Ukrainian coups against fuel tankslogistics nodes and supply centers seek to make any accumulation of armored vehicles on the front meaningless. And without fuel and maintenance, even a large number of vehicles lose operational value. Thus, the Russian problem is not only how many tanks you can deploy, but how long you can keep them functioning in real combat conditions. Accelerate burnout. In short, Russia appears to be trading a depleting resource (the labor) for another that is also beginning to become scarce: his armored legacy of the Cold War. In the short term it may be able to sustain the pressure on the front, but if current losses continue, the material cost can quickly grow to become unsustainable. In that scenario, the return of the tanks It does not seem to represent a return to conventional warfare, but rather a risky bet on a battlefield that has already evolved. faster than them. Image | Telegram In Xataka | Iran is winning the war with “Ukrainian mathematics”: there is no need to shoot down US fighters, it is enough to force them to take off In Xataka | Europe’s fear of an unprecedented situation in the Mediterranean: a Ukrainian drone has left a ticking bomb floating

Taking money from a family member just before their death seemed like a great idea to avoid paying taxes. It wasn’t

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Why should an additional tax be paid for receiving money in inheritance for which the deceased already paid taxes? Many people ask that question and They decide to jump into the mountains (prosecutor) trying a thousand and one tricks to avoid payment of the Donations and Inheritance Tax. The most common trick is to empty bank accounts of the family member before he or she dies. Spoiler: it goes wrong. A solved case by the Superior Court of Justice of Madrid shows that this belief can be very expensive, and that the attempt to avoid the treasury can end up exactly where one wanted to avoid arriving: paying the Treasury even more than what they would have paid in the beginning. Money, what money? A woman was listed as the owner or authorized person on several of her sister’s bank accounts. In September 2017, this died without leaving a will. When the General Directorate of Taxes of the Community of Madrid began to investigate the case, it found that the deceased’s assets were much larger than what her sister wanted to make out. As of December 31, 2016, the three bank accounts of the deceased accumulated considerable balances: one with 9,217.08 euros, another with 51,216.58 euros and a third with 132,644.53 euros, in which the sister appeared directly as joint owner. In addition to these savings, the deceased had received 45,000 euros in April 2017 for the sale of her part of a property that she shared with her sister. By December 31, 2017, all the money in the accounts was gone. The Treasury calculated that the total money and assets that should have been declared in the inheritance amounted to 122,931.67 euros, to which was added the value of 50% of a property in Hoyo de Manzanares valued at 1,812.50 euros. ​No resignation possible. The sister responded to the first requests from the Treasury by assuring that the deceased had died without assets. Some time later he provided a notarial document of renunciation of inheritance dated September 29, 2020, more than three years after death occurred. His argument was that he did not know that his sister had assets, and that the only movements he had made in the deceased’s accounts were payment procedures for the residence where he received care his sister in her last month of life. The court that reviewed the case in the first instance initially agreed with him, considering that this payment could be interpreted as timely management. However, the Community of Madrid, in charge of collecting the tax, appealed and the TSJM resolved differently. Although in theory you can renounce an inheritance at any time during the process, doing so after having acted on the deceased’s assets has tax consequences that no notarial deed can erase. What does it mean to accept an inheritance without wanting to do so?. In Spain, you do not need to sign any paper to legally become an heir. The law includes in its article 999.3 the figure of tacit acceptance, which occurs when someone acts on the assets of a deceased as if they were already theirs, even if they have never confirmed acceptance of inheritance. Withdrawing money from your accounts, selling your property or simply managing your assets are examples of actions that, in the eyes of the law, are equivalent to saying “yes, I accept”, even if no paper has been signed.​​ The problem is that many people are not aware of this rule and believe that as long as they do not sign anything before a notary, they are safe. In reality, what matters is not what is signed, but what is done. The Supreme Court takes decades establishing that any act that unequivocally reveals that someone he is behaving like an heireven if informally or even unconsciously, has the same legal and fiscal effects as an express acceptance of the inheritance.​ What the law says about disappearing money. The TSJM applied the article 11.1.a of the Inheritance and Donation Tax Lawwhich establishes that the assets that would have belonged to the deceased up to one year before his death They are considered part of the inheritanceunless proven otherwise by solid evidence. Not only did the sister not provide any explanation as to what had happened to that money, but she did not even try throughout the entire process. The court also assessed that the deceased was admitted to a nursing home and was receiving special care, which made it highly unlikely that she would have been able to manage the withdrawal of the money from her accounts on her own. Given that the sister was the owner or authorized owner of all of them, the judges concluded that moving that money was equivalent, in the eyes of the law, to having accepted the inheritance. Pay the tax, but get rid of the fine. The TSJ of Madrid confirmed that the woman had to pay 26,217.11 euros as settlement of the Inheritance Tax for her sister’s inheritance. However, the judges annulled the fine of 17,999.73 euros that the Madrid treasury demanded, because the Community of Madrid failed to prove that the woman had acted with the deliberate intention of deceiving the treasury, something that the law requires before being able to impose a financial penalty of that type. In Xataka | The “Great Transfer of Wealth” is not only a thing for the rich: demographic change will concentrate wealth among the youngest Image | Pexels (cottonbro studio)

Skyscrapers are full of glass, so some Spanish researchers have had an idea: let them serve as "solar panels"

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Every 60 minutes, the Sun bathes the Earth with enough energy to cover the world’s consumption for an entire year. The data, remembered by the Polytechnic University of Madrid (UPM)it’s overwhelming. But there is a problem: harnessing all that energy in our cities hits a literal wall. Classic solar roofs are becoming too small for us in increasingly dense cities, and hanging rigid and heavy panels on the facades of buildings is not a realistic option. To avoid this aesthetic and space blockage, the laboratories have found a pioneering solution: using new two-dimensional materials. These are microscopic layers that will allow the windows of any skyscraper to be converted into totally invisible solar panels. With Spanish seal. The Silicon and New Concepts for Solar Cells (SyNC) research group of the Solar Energy Institute (IES) of the Polytechnic University of Madrid (UPM) has managed to manufacture micro-prototypes of ultra-thin and highly efficient solar cells. The secret of this technology lies in the so-called two-dimensional photovoltaic materials. Imagine a sheet so thin that it is only a few atoms thick; For all practical purposes, it is so thin that physics considers it to lack a third dimension. Science knows this family of compounds with a complex name, transition metaldicalkogenides (TMDC), among which molybdenum disulfide (MoS2) and tungsten diselenide (WSe2) stand out. Their great rarity—and their greatest virtue—is that, despite being an almost invisible layer, they have an extraordinary capacity to absorb sunlight. In Xataka Solar panels have an invisible and very brief moment in which they do not work. And solving it is key to your future The actual scope. To understand this technology, researchers published a study in the scientific journal Nano Energy. In it, they simulated what would happen if the façade of a real skyscraper, the Torre Picasso in Madrid, were covered with semi-transparent windows made with these materials. The results estimate that between 16% and 23% of the building’s daily electricity consumption could be covered. If this technology is also combined with areas of opaque modules, the generation could exceed 30% of the energy needs of the skyscraper. Natural light, real colors and savings on the bill Historically, the big “but” of solar windows has been the poor visual quality. Alternative technologies, such as organic or perovskite cells, often act as a filter that colors the light entering the room in unnatural reddish, yellow or brown tones. As explained by UPM researchersthe structure of TMDC materials solves this root problem: they allow a very balanced absorption of visible light, which eliminates the problem of unwanted “coloring” of light. The result is lighting with a natural and warm tone, achieving a Color Rendering Index (CRI) greater than 90, a very high quality metric for work spaces. In addition to generating electricity, in very sunny places like Spain, these glasses naturally block excessive glare. This means that the skyscraper not only produces its own energy, but also saves a lot of money by not having to turn on the air conditioning as much. From the microscopic laboratory to the factory. Creating these ultra-thin solar cells is a work of very high precision. To manufacture the prototypes in the laboratory, the UPM team has used a technique called hot-pick-up. Using this method, they use a small transparent bubble to select, collect and deposit fragments of the materials, creating tailored stacks that combine the best properties of each one. But the goal is not to stay in the laboratory. IES-UPM researchers are already working with new techniques to scale this process and cover large areas, such as entire windows. According to the scientists themselves“through spraying and deposition techniques of these solutions, manufacturing processes could be scaled, reducing costs and allowing the industrialization of this disruptive technology.” The ace in the hole: catch the lost heat. The potential of these two-dimensional materials goes far beyond solar windows. Another investigation from the same team, published in the scientific journal ACS Applied Energy Materials, demonstrates that by modifying molybdenum disulfide (MoS2) with an element called niobium, the material acquires impressive thermoelectric properties. More simply, this means that in the future, these materials could not only capture sunlight, but could also have applications in thermal sensors or in the recovery of energy from the heat wasted by machines or buildings themselves. {“videoId”:”x81qnhf”,”autoplay”:false,”title”:”Is it possible to generate energy at zero cost?”, “tag”:”Energy”, “duration”:”109″} The new skin of the city. The lightness, flexibility and low manufacturing cost of these solar cells makes them one of the most promising options to achieve the desired “green cities”. Two-dimensional photovoltaic technology shows us that the ecological transition in dense urban environments no longer depends only on finding space on roofs to place large rigid panels. The real paradigm shift consists of transforming the very “skin” of buildings – their windows, their walls, their facades – into active sources of clean energy, ensuring that any surface can be an ally against climate change. Image | Photo by Arthur Mazi on Unsplash  Xataka | Plastic solar panels have always been more of a dream than reality: China has just changed that (function() { window._JS_MODULES = window._JS_MODULES || {}; var headElement = document.getElementsByTagName(‘head’)(0); if (_JS_MODULES.instagram) { var instagramScript = document.createElement(‘script’); instagramScript.src=”https://platform.instagram.com/en_US/embeds.js”; instagramScript.async = true; instagramScript.defer = true; headElement.appendChild(instagramScript); – The news Skyscrapers are full of glass, so some Spanish researchers have had an idea: let them serve as “solar panels” was originally published in Xataka by Alba Otero .

After abandoning the idea, a battleship has fired an electromagnetic cannon

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A projectile can reach more than Mach 6 without the need for explosives, powered solely by electricity. This type of system eliminates traditional gunpowder and reduces the cost per shot drastically, but it also requires amounts of energy comparable to the instantaneous consumption of hundreds of homes. Therefore, for a long time various nations They have tried to get ahead of the rest with the same technology between eyebrow and eyebrow. The return of an idea. In recent times, when people spoke of “rail” or “electromagnetic” all eyes They were heading to the tests made by Japan. Now the United States Navy has tried again an electromagnetic cannon, and it does so years after having publicly archived the program, in a move that reopens one of the most ambitious technological bets of the last decade. The test, carried out at White Sandsdemonstrates that the system not only continues to exist, but also maintains a certain degree of operability. Plus: the return is not accidental and aims to a change of priorities in a context where speed and range are once again decisive factors. Press the fantastic button. There is no doubt, the central idea could not be more clear and powerful: the United States has returned to press the button from science fiction by reactivating a weapon that fires projectiles through electromagnetic energy at extreme speeds, something very similar to what we have seen in fantasy literature and science fiction. This type of technology, for years associated with futuristic prototypes, had been abandoned by its technical difficulties. Be that as it may, its reappearance indicates that what was previously experimental is once again considered a real option on the battlefield. Promises and structural problems. He too called railgun It offers obvious advantages, such as greater speed, range and a lower cost per shot than traditional missiles. But precisely these advantages come accompanied by very specific challenges that explain why it was left aside at the time by the Americans. For example, it requires enormous amounts of energy, complex cooling systems, and suffers accelerated wear on the barrel, which limits its sustained use. The new context that changes everything. Furthermore, the resurgence of this technology is not understood without the current context of global military competition and eminently warlike climate. The United States seeks to integrate this kind of railgun into future large shipshow could it be new class of battleships planned for the next decade. In parallel and as we have been saying, countries like japan either even China They are also advancing similar developments, which suggests that, now, a technological race around this type of weaponry is beginning to take shape. From forgotten experiment to key piece. If you want too, what was once an archived program could now become a central element of naval warfare of the near future. Because the simple ability to launch hypervelocity projectiles, even against advanced threats, would give a strategic value significant to any nation capable of solving the projectile’s conditions. And above all, it confirms a broader trend: that technologies that seemed too complex or premature they are returning to the scene because the strategic context It no longer allows them to be discarded. Image | USN In Xataka | China has made a science fiction dream come true: an electromagnetic cannon capable of reaching 3,000 shots per minute In Xataka | Japan has been developing the cannon that the US abandoned for years. And we have been able to see its effects for the first time

OpenAI thought putting an erotic mode on ChatGPT was a good idea. His wellness advisors call him “a sexy suicide coach”

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Treat adults like adults. This is how Sam Altman announced OpenAI’s decision to allow a “adult mode” on ChatGPT to have erotic conversations. It makes economic sense since it will be a paid function, but the doubts from an ethical point of view are also there. In fact, it has been the company’s own wellness team that has been against this product, causing its launch to be delayed. Internal opposition. In an exclusive Wall Street Journalsay that earlier this year, OpenAI consulted with its board of wellness experts about ChatGPT’s adult mode and the response was unanimous: it’s a terrible idea. At a meeting, experts warned that these types of interactions with AI can foster emotional dependency, especially among younger users. One of the committee members brought up the topic of teenagers who committed suicide, allegedly encouraged by ChatGPTand said it would be like launching a “sexy suicide coach.” Demolishing. Risks. People are already forming emotional bonds with AI chatbotsif we add sexual content to the one that has the most users in the world, it is, to say the least, delicate. According to internal documents reviewed by the Wall Street Journal, the wellness council’s experts identified several problems, such as the risk of compulsive use, a tendency toward extreme content, and the displacement of real romantic relationships in favor of virtual ones. Age verification. Is the crucial step that ensures that such a tool does not end up in the hands of minor users. The problem OpenAI has is that its verification system fails more than a fairground shotgun. According to internal sources, the system failed to identify 12% of the time. It may seem like a relatively low figure, but in practice we are talking about millions of teenagers accessing this function. What OpenAI says. The company wants us to be able to ‘sext’ with ChatGPT, but with certain limits. An OpenAI spokesperson says they will block harmful content – such as sexual and child-related abuse -, will integrate safeguards such as reminding users to have relationships in the real world, and will also avoid encouraging exclusive relationships. Another measure involves monitoring the long-term effect that this adult mode has on users. Adult mode will be exclusively text and will not allow the creation of images or videos. Regarding age verification, the spokesperson states that the performance is similar to that of other industry proposals and that “they will never be totally infallible.” It was planned for the first quarter, but now that it has been postponed there is no date for its launch. Background. OpenAI already has a history of accusations related to harmful effects on mental health. One of the most famous cases It was Adam Raine’sa teenager who shared his suicidal ideations with ChatGPT. When his parents discovered the conversations, They sued OpenAI. And he hasn’t been the only one. There is several legal proceedings underway for similar cases and there have also been cases where ChatGPT has been accused of encourage delusional thoughts and cause psychotic breaks. Saying that AI is solely responsible is simplify a much more complex realitybut it is no less true that OpenAI has taken steps to make its chatbot more secure for minors and has been shown committed to taking care of the mental health of its users. That is, they recognize that the problem exists. The question now is how launching a version of the same chatbot that has sex with users fits into this discourse. In Xataka | “I can’t stop”: the addiction to talking to AI is already here and there are even support groups to quit it Image | Cottonbro studio, Pexels

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