created

In 1982 Seiko created a watch for making calls and watching television. His only problem was arriving too early

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History is full of devices that were ahead of their time. I am not referring to literary or cinematographic machines like the tablet by Kubrick or the multiple predictions from Verne, but to other devices that were put on sale decades ago and now we realize that they are very similar to some of the latest gadgets on the market. One of these inventions was Seiko TV Watch. In its day this rarity was considered and recognized as the smallest television in the worldand even made appearances in some movies, but today no one can miss its striking resemblance to current smart watches, and in a way we could say that we are facing a distant relative. The history of this device began in 1972, but the first step was not taken by Seiko but by another North American company called Hamilton. They were the creators of Press P1the first digital wrist watch in history. The Japanese they acquired to Americans, and they embarked on their own path into the digital age by launching their first watch of this type in 1973. At that time it was said that society was moving towards a revolution in visual information, and to join it with its new range of watches the japanese company started to work on the research and development of liquid crystal panels (LCD) with active matrix that were capable of reproducing moving images. Over the following years, these efforts helped their watches become increasingly smaller and thinner, with higher component density and more energy efficient. They were also implementing new functions such as stopwatches and calculators. After three years of development and hundreds of millions of yen invested, the summer of 1982 Seiko advertisement in Tokyo a new watch. It was about TV Watchthe first to finally allow us to watch television on our wrist. This was Seiko’s TV Watch A watch that you can watch television on. Today this concept seems simple, but back then being able to carry it out was a little more complicated. The TV Watch was made up of three different elements that had to be connected together for it to work. The result was a science fiction product, yes, but a little uncomfortable to wear. On the one hand we had the clock, but we had to connect it to a radio and television receiver the size of a walkman. We also needed headphones, and these also had to be connected to the signal receiver. And how could you carry so much cable with you in a fairly comfortable way? Well, very simple, pay attention to this drawing that appeared in your manual. As you can see, the trick was to put the receiver cable under the sleeve to connect it to the watch. But in case we didn’t want to complicate our lives, the TV Watch also had a function to listen only to the audio of television broadcasts. The watch itself had dimensions of 40 x 49 x 10 millimeters and a weight of 80 grams, and all its magic was concentrated in its innovative 1.2-inch white and blue LCD screen with a resolution of 32k pixels and 10 shades of gray. I also had a second smallest screen in which we could see the time, set the alarm and use the stopwatch as with any other digital watch. During the presentation of the device, its creators had to give certain explanations about how they had achieved such ingenuity. They said their new panels controlled the molecular arrangement of liquid crystal within an electric field, and that this made it possible to create miniature images with very low power consumption. Especially when compared to the cathode ray tubes of conventional televisions. The receiver measured 74.5 x 125 x 19 millimeters and weighed 140 grams. This made it too big to carry in a back pocket, but perfect for the inside jacket pocket. Its battery consisted of two AA batteries that gave it a range of five hours, and it tuned both FM radio and television on VHF & UHF channels. What could have been and was not The TV Watch arrived on the Japanese market in December 1982 with a single DXA001 model that cost 108,000 yen, although a second, cheaper DXA002 model was later released. The difference between the two was that the second included a hearing aid instead of headphones, and its price dropped to 98,000 yen. In exchange, these two models today would be worth around 600 and 500 euros respectively. The presentation of the device managed to generate a lot of interest, and the watch made front pages of newspapers and headlines on television. It was considered an innovative product for allowing us access a large amount of information in real timeand it attracted so much attention that a year later it also ended up reaching the US market. Errr, okay? During its launch in Japan, Seiko managed to sell 2,200 units, and the president of the company’s North American subsidiary said that the reception from the American media had been so good that he believed he could sell all the ones they manufactured. This optimism translated into the production of between 15,000 and 20,000 units ready for export. But not everyone saw the TV Watch as an invention destined to revolutionize the market. In fact, it is known that at Sony they came to say that their laboratories had the capacity to develop a similar product, but that They didn’t think there was a big enough market. for this type of devices. In the end it turns out that they were right, and the watch did not end up becoming a successful product. In the TV Watch curriculum we find several dates indicated. In 1982 he won the Nikkei Award for Superior Quality Products and Services, and a year later he made an appearance in Octopussythe new James Bond movie. The watch culminated its career in 1984 by entering the Guinness Book of Records as … Read more

the company is drowning in the market that it itself created

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The first time I ordered food at home, it was from Telepizza. It’s possible that you do too. In the nineties, Telepizza was the perfect plan for hangouts to watch football or a movie at home. They had no competition. Today yes, and a lot. This, together with decades of treating the company as a financial asset and not as a long-term business, has caused the current situation: the company’s accounts are bleeding and there are serious doubts about its viability. Debt, restructuring and losses According to one PricewaterhouseCooper audit published in Merca2in 2024 Telepizza lost more than 48 million euros and carries a total debt of 150 million euros. The expected turnover for this period was 300 million euros, but they achieved 249.9 million, 18% less. This is in addition to expenses that amounted to 18.6 million euros in 2024 alone. Spain continues to be its strongest market and accounts for 60% of all its income, but also where the loss is greatest (almost 25 million euros). According to PwC, there are “material uncertainty regarding the continuity of the business”, and it is not the first time they have warned of something like this. They did another audit of the company’s accounts in 2022 in which they showed “significant doubts about the Company’s ability to continue as a going concern.” Telepizza is at a crossroads: it needs to generate income quickly to cover expenses and debt, but at the same time it needs to invest if it wants to become competitive again in the current landscape. The accounts don’t work out. Telepizza and the delivery boom The food delivery landscape has radically transformed. Telepizza no longer competes in the market it founded, but in a totally saturated ecosystem where there are more and often better options. According to Dashmote data in 2024between 2019 and 2022 the delivery market in Spain doubled its income, reaching 5,000 million euros and in 2023 it would grow to 6.6 billion. Not all the mountain is oregano, the main delivery operators They also cannot boast of stability and profitsbut for Telepizza the reality is that, where they once reigned, now There are hundreds of thousands of restaurants available. It also happens that pizza is no longer the favorite option to order at home. According to DBK dataIn 2024, hamburger restaurants accounted for 61% of the market. Fried chicken restaurants and “other concepts” also grew, while pizzerias decreased their turnover by 1.8%. There is also the problem that entering this model implies give a third of income in commissionssomething that does not suit Telepizza very well in its delicate situation. Given this panorama, Telepizza has opted to encourage orders through its app and website. Recently They celebrated a pyrrhic victory: They are the pizza brand with the most users through their website and appreaching a total of 1.8 million monthly users. The problem is that the figure is not even striking. To put it in context, Burger King and McDonald’s have 4.7 and 4.5 million users through their apps respectively. Telepizza’s strategy involves reinforcing its own channel and betting on loyal customers who already know them and return to their app, but at the same time has become practically invisible for the rest of the public, who have many more pizzerias to choose from through the apps. It is an isolation strategy. The final chapter of a series that began decades ago To understand how Telepizza is today, you have to look back. The current situation is the consequence of a trend that began in the nineties. After a spectacular IPO in 1996, at the end of 1999 its founder sold his stake (months before the collapse of the dotcom bubbleby the way). This sale marked the beginning of an era in which Telepizza became a financial asset at the hands of venture capital funds and its valuation fell with each movement. In 2007, Telepizza went public after the takeover bid by the Permira and Ballvé fund and was valued at 850 million euros. In 2016, after the entry of the KKR fund, it went public again, although with quite disastrous results. Here the valuation had dropped to 780 million euros, but the worst thing is that not even three years passed when the KKR group launched another takeover bid again for take it out of the bag againvaluing it only in 600 million euros. Paradoxically, 2017 was a good year for the company’s accounts, which achieved record profits. Right after it was signed the agreement with Pizza Hut in which Telepizza committed to opening 1,300 restaurants, almost nothing. The plan ended up going awry internal tensions and the pandemic. In the end Telepizza broke up with Pizza Hut in many of the countries in which it was going to operate. In 2023, the debt caused the KKR fund left the equation and a financial restructuring was signed in which the company passed into the hands of its creditors, among which are Oak Hill and Fortress, two opportunistic funds, also known as vulture funds. Under this new mandate the objective was to try to stabilize the losses with the exit from Latin Americaalthough They couldn’t sell everything. The image speaks for itself In contrast, its most direct competitor, Domino’s Pizza, has had a stable trajectory of growth and is in good financial healthyou just have to look at its growth curve on the stock market. In addition to the global parent company, behind Domino’s Pizza Spain is Alsea, the Mexican restaurant provider which also manages brands such as Starbucks, Burger King or Foster’s Hollywood. Venture capital has squeezed Telepizza so much that has left it without operating marginleading it to a delicate situation that has lasted for years and that calls into question its continuity. In the end, the secret was not in the dough, but in being a restaurant chain and not a financial asset that passes from hand to hand. Image | Telepizza In Xataka | Robotic vans are already key in … Read more

A company claims to have created the first transparent computer monitor: it has borrowed technology from aviation

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The idea of ​​“seeing through” the screen is not new. For decades, HUDs have projected data onto the windshields of airplanes. and today many cars offer own versions to show speed or navigation without taking your eyes off the road. That principle, project or reflect information on a transparent elementis the one that Visual Instruments ensures have brought to the desktop with Phantom, a monitor that seeks to mix the digital and the physical and that adjusts its transparency in real time. Phantom does not use a panel that becomes transparent on its own, but rather an optical assembly similar to that of a teleprompter or HUD. The image is reflected in a tilted glass and thus appears to “float” over what is behind, with an opacity control that allows it to go from transparent to opaque. The company presents it as “the first transparent computer monitor.” The key to the invention is in the optics, not in a futuristic panel According to the manufacturer, Phantom is presented as a 24-inch monitor in 16:9 format with 4K resolution. The company sets the brightness in a range from 5 to 5,000 nits and places the color coverage at 100% sRGB, figures that must be confirmed when the product reaches the hands of users and analysts. As for the connection, it is limited to the most common options: USB-C with DisplayPort and HDMIwithout the need for additional software to operate. {“videoId”:”x87bool”,”autoplay”:false,”title”:”How to CALIBRATE your MONITOR for VIDEO GAMES and enjoy it to the fullest”, “tag”:”monitor”, “duration”:”230″} It is worth putting it in context. Transparent screens have been appearing in consumer markets for years. LG has been marketing a 77-inch transparent OLED TV since 2024. Lenovo, for its part, has also developed a concept laptop with a transparent panel. The difference here is key: those products use transparent base panels, while Phantom uses, as we say, HUD-type optics. They are different technological routes, with different commitments and limitations. Aspects such as contrast, color representation with different ambient lights, the presence of reflectionsuniformity or comfort in prolonged use remain unknown. It is also unclear to what extent alternating between the monitor and the background can translate into real relief from eye strain beyond the idea put forward by the manufacturer. Everything will depend on the first independent tests and the measurements that are published when demonstration units exist. In Xataka There is a cheap TV sweeping Amazon: after a week of use it became clear in which situations it can make sense Phantom arrives, therefore, as a suggestive idea that has yet to demonstrate whether it can be sustained in everyday use. The commercial status points to a very early and selective launch. The Founders Edition is limited to ten units intended for early adopters, with shipping expected in Q4 2025, 30-day returns, and a one-year warranty. The price is not final: each unit is custom configured, but the company itself compares it to an Apple Studio Display whose price in Spain starts at 1,779 euros. Images | Visual Instruments | Telstar Logistics In Xataka | Xiaomi TV S Pro MiniLED 2026, analysis: the juggling act of wanting to offer the quality of a high-end and the price of a mid-range (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 A company claims to have created the first transparent computer monitor: it has borrowed technology from aviation was originally published in Xataka by Javier Marquez .

Elon Musk boasted of having created an “apocalypse-proof” car. Now the Tesla Cybertruck’s headlights are falling out

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Who doesn’t know a C15, prays to any Tesla Cybertruck with this title we headed this article in July 2024. We did it because on social networks it was already common to find comparisons between a Tesla Cybertruck which began selling just half a year before for a price close to $100,000 (sometimes much higher) with the car of “a Spanish farmer flying with three bags of fertilizer and a pregnant sheep in the trunk”, as this X user described. It was no wonder. Since it was first announcedElon Musk did not stop boasting that Tesla’s future electric car was nothing short of indestructible. A story that began crack when, live, the car glass itself could not resist the launch of a steel ball that, in theory, should not have caused any scratches. Now, less than two years after the car went on sale we know that the crack has been getting bigger and bigger. Because Tesla has recalled its Cybertruck for review. This time there have been 6,200 units. It is the tenth time in less than 24 months. Now, the headlights are going out. Indestructible, when it does not self-destruct Elon Musk boasted during the Tesla Cybertruck launch event about having a car “apocalypse proof”. He was talking, we assume, about real apocalypses, not metaphorical ones like the one they are experiencing Tesla sales in Europe. Beyond the jokes, what the owner of the company wanted to show is that he had something like a “armored street car”. In Xataka We already explained why a car that does not deform is a bad idea. If the car does not absorb the impact, it is the passenger who suffers the impact against himself. We are talking, of course, about cars that are on the street, working with all the guarantees. The problem for Tesla is that it keeps call cars for inspection. In the first year he had to do five calls for review. Today it has already been 10 and there are two full months of 2025 ahead, they collect in Electrek. While it is true that some of the problems have been solved with simple software updates, on other occasions they have had to go to the workshop because they were losing pieces in progress. The problem, everything indicates, is the same as on this occasion. The Tesla Cybertruck has some unusual headlights falling out, according to the American media. That is why the NHTSA has had to activate a recall so that 6,197 Tesla cars return to facilities. And Tesla sells headlights that can be installed on the roof of the vehicle as an accessory in its after-sales network, expanding the car’s off-road characteristics. The problem is that those headlights fall out. The glue simply cannot withstand their weight and in some circumstances it ends up expiring. This It hasn’t been the first time that Tesla has problems with the glue used, which has led to calls for review because, among other elements, the decorative molding of the A pillar, the one located on the side of the windshield, fell off. Beyond the possible fun of having an indestructible car that pieces are falling off while movingTesla is experiencing an ordeal with the electric off-roader. The company had the opportunity to make it a flagship, aspirational model and always sell it at a very high price but without aspirations of turning it into a mass product. like Mercedes does with its G-Class. However, it opted for the opposite and now finds itself unable to put the promised versions on the market at affordable prices. But, above all, it does not seem to be selling the expected numbers. And the company says it has a production line ready capable of produce 125,000 units each year. Musk even boasted that they expected sell more than 250,000 units annually. Electrek They point out that less than 65,000 units have been sold since November 2023. Photo | Josip Ivankovic In Xataka | In an attempt to improve sales of the Cybertruck, Elon Musk has found an unexpected buyer: himself

Spanish scientists have created a material that swallows 99.5% of light. And it is great news for renewables

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At first glance they look like invisible needles, thin to the extreme and tiny like a thousandth of a human hair. A group of Spanish researchers has created ultra-black nanoneedles that absorb up to 99.5% of the solar radiation they receive, a record figure that not only sets an optical record, but will increase the efficiency of solar thermal plants. Made in Euskadi. The discovery comes from the Thermophysical Properties of Materials group at the University of the Basque Country (UPV/EHU). There, the researchers have designed a surface composed of copper cobaltate nanoneedles—a mixed oxide of copper and cobalt—with exceptional optical properties. Its ultra-black tone and its resistance to humidity and high temperatures make it ideal for solar tower receivers. According to tests, the material achieves an absorption of 99.5% of sunlight, surpassing black silicon (95%) and carbon nanotubes (99%). “We are looking for ultra-black materials for more efficient solar towers,” noted researcher Íñigo González de Arrieta. A change for solar energy. In concentrating solar thermal power plants (CSP), hundreds of mirrors reflect and concentrate sunlight towards a central tower. There, heat is used to melt salts that retain thermal energy and allow electricity to be generated even when the sun has already set.The key is to take advantage of each photon: if the receiver material reflects part of the light, that energy is lost. And this is where the new nanoneedles come into play. Until now, the most used material was black silicon, with an absorption level of 95%. The new nanoneedles, on the other hand, could raise that figure significantly and, with it, make solar thermal energy, one of the most promising clean sources in countries like Spain, more competitive and profitable. Beyond the blackest black. Carbon nanotubes seemed unbeatable: dark as a vacuum, capable of trapping almost all light. But they had an invisible enemy: the heat and humidity deteriorated them quickly. The copper cobaltate nanoneedles, developed by the Basque team, endure what their predecessors could not. They withstand temperatures above 700 degrees without losing effectiveness and, in addition, they are more stable. In solar towers, that difference can translate into more energy and less maintenance. A real impact. Dr. Renkun Chen, from the University of California, San Diego, is collaborating with the Basque team and the United States Department of Energy to study the feasibility of applying nanoneedles to industrial solar plants. “We observed that these nanoneedles performed better than the carbon nanotubes used until now, and that their performance increased when coated with zinc oxide,” Chen explained.. However, González de Arrieta himself clarifies that there is still some way to go: the next pilot-scale tests will determine if the process is economically viable and if the material can be produced industrially without losing its optical properties. Darker, brighter. Ultrablack nanoneedles are an example of how nanotechnology applied to energy can have a direct impact on global sustainability. The UPV/EHU team plans to continue developing new compounds with better thermal and optical conductivity, designed to withstand the challenges of future solar towers. Promoting this renewable energy offers many advantages: it is totally clean and can also be used when the sun does not shine,” recalled González de Arrieta. And if everything goes as expected, the future of solar energy could be, paradoxically, darker than ever. Image | Flickr Xataka | In the midst of a trade war, there is a battle that China has already won: that the world depends on its new energy

There are so many trips planned to the Moon that the UN has created a “lunar circulation committee” to regulate traffic.

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The Moon is coming into fashion after 50 years of calm. But this time it is not a race between two: it is a commercial race in which old and new space powers, as well as a multitude of private companies, participate. The lunar “jam.” The interest is so sudden that in the last two years there have been 12 attempted lunar missions. This “blitz” of moon landings, driven by public-private programs such as NASA’s CLPS, has proven to be a quick, cheap, but also a little chaotic to reach the Moon. Still, worrying about “traffic jams” on the Moon sounds absurd. Cislunar space (the region between the geostationary orbit of the Earth and the Moon) is gigantic: 2,000 times larger than that of Earth’s orbit. If there is so much room, where is the problem? The problem is that everyone wants the same place. In the same way that on Earth all cars use the roads, on the Moon missions tend to cluster in a very select set of stable orbits. The immensity of cislunar space is, therefore, deceptive, explain professors of International Affairs and Aerospace Engineering at the Georgia Institute of Technology, in an article for The Conversation. To make matters worse. Most government sensors that track satellites in Earth orbit are not designed to detect and monitor objects this far away. The Moon’s own glare makes the task difficult. This uncertainty has a direct consequence: it forces operators to be excessively cautious. When in doubt about a possible collision, agencies prefer to waste fuel and carry out an evasion maneuver, which interrupts scientific missions and shortens the useful life of the ships. 50 satellites are enough for chaos. According to research published in the Journal of Spacecraft and Rocketsonly 50 satellites in lunar orbit are enough for each of them to have to maneuver an average of four times a year in order to avoid a possible collision. 50 satellites may seem like a lot, but at the current rate of launches, we could reach that number in less than a decade. And it’s not theory. It’s already happening. The Indian orbiter Chandrayaan-2 had to maneuver three times between 2019 and 2023 to avoid dangerous approaches (one of them with NASA’s LRO probe). And this occurred when there were only six operational spacecraft orbiting the Moon. The UN wants to bring order. This is where international diplomacy comes in. The United Nations Committee on the Peaceful Uses of Outer Space (COPUOS), the main global forum for space law, has taken action on the matter. In early 2025, COPUOS formally established a new working group: the Action Team on Lunar Activities Consultation (ATLAC). The goal of this team is precisely to create a draft of space “traffic rules.” They have until 2027 to study recommendations and a possible international consultation mechanism. Image | POT In Xataka | How many times have we gone to the Moon and why have only 11 military aviators and one geologist set foot on it in all of history?

They have created a pixel so small that it fits on the tip of a pin

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We’ve been talking about smart glasses for years, but the big obstacle has always been the same: the screen is still too big to go unnoticed. At the University of Würzburg, a group of physicists assures having manufactured the “smallest light-emitting pixel in the world”, a light point that measures about 300 by 300 nanometers and that, even with that size, reaches, according to the team, the brightness of a conventional 5 by 5 micrometer OLED pixel. If the technology can scale, a complete microdisplay could be practically integrated into the frame of glasses, invisible to the naked eye. The advance comes from Germany, where a team led by physicists Bert Hecht and Jens Pflaum has managed to reduce OLED technology to a scale never before achieved. Your work was published on October 22, 2025 in Science Advances and describes a method for fabricating ultra-compact light-emitting pixels using optical antennas. The goal is not just to demonstrate that they work, but to lay the foundation for a new generation of projection modules for smart glasses and other wearable devices. A tiny pixel, big brightness. More than a question of size, the discovery lies in the luminous intensity that they have managed to maintain by miniaturizing the structure. The result points to very high resolutions in practically imperceptible spaces. In a device of this type, the panel is not seen from the front: it acts as a light source that projects the image onto the lens, which allows the projection system to be integrated into areas as discreet as the frame of glasses. Scheme of the nanopixel developed in Würzburg High resolution in no space. Reducing a light source to nanometric dimensions without losing power is not only a question of miniaturization, but of materials engineering. The team has shown that it is possible to guide the current and optimize the emission in a structure where space barely allows room for error. With this control, OLED technology enters a new phase, in which pixels cease to be discrete elements and become optical components with antenna behavior. To achieve this, the researchers had to completely redesign the way current flows within the pixel. In previous attempts, the electricity was concentrated at the edges and ended up damaging the material, like lightning that always seeks the shortest path. Their solution was to add a thin insulating layer that blocks these leaks and leaves a tiny central opening through which the current passes in a controlled manner. This way they achieved a stable emission without the pixel being destroyed over time. Efficiency and color. Although the prototype demonstrates solid operating density and stability, its external quantum efficiency is as low as 1%. The researchers hope to improve that figure by optimizing organic materials and antenna architecture, and plan to expand the emission spectrum to all three primary colors. Only then could this technology be considered ready for the next generation of portable microdisplays. Images | Xataka with Gemini 2.5 | Isis France In Xataka | Xiaomi AI Glasses are much more than Ray-Ban Meta because they are not just a product. They are a platform

In China they have created a material for their fighters that opens a new technological direction: it aims directly at radars

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From the early days of World War II to the stealth fighters of the 21st century, the goal of remaining unnoticed by the enemy has been a constant obsession in military aviation. Aerial “invisibility”, more than a myth, It is a technological challenge that has marked decades of innovation in materials and design. A team from Chinese universities describes a flexible and ultra-thin coating capable of absorbing radar waves without losing thermal resistance, collects SCMP. If its effectiveness is confirmed in flight, it could change the conversation about modern aerial stealth. The development was detailed on October 14 in Advanced Materials. The study, signed by Cui Guang, Liu ZhongfanHuihui Wang and Maoyuan Li, among others, presents a graphene-on-silica-fabric (G@SF) metasurface that combines flexibility, low weight and thermal resistance of up to 1,000 degrees Celsius. According to its authors, the direct integration of the material into the insulating layer of an aircraft would allow the reflected radar signal to be reduced to −42 dB, without compromising the structure or weight of the aircraft. A surface that wants to defy the radar The material is based on a silica textile base on which the researchers deposited graphene using a chemical vapor deposition process. On that layer they applied a laser “erasing” technique, which allowed them to create a precise pattern on the surface and adjust your electrical impedance. In this way, they claim, they managed to make the coating effectively absorb electromagnetic waves without needing to increase its thickness or weight. The result is a flexible, ultralight metasurface with an adjustable sheet resistance between 50 and 5,000 ohms per square. {“videoId”:”x9ri2iu”,”autoplay”:false,”title”:”How China, the biggest polluter on the planet, has also become the complete opposite”, “tag”:”webedia-prod”, “duration”:”740″} Laboratory tests showed that the material maintains stable performance even under extreme conditions. After five minutes of exposure to 600 degrees Celsius in air, it retained its absorption capacity, and also withstood prolonged heating to 1,000 degrees in a vacuum without degrading. In tests with air currents of up to 200 meters per second, its loss of efficiency was less than 1%, and neither the surface pattern nor the resistance of the sheet were altered. These properties make it an ideal candidate for high-speed aircraft exposed to intense heat and friction. Withstood prolonged heating to 1,000 degrees in vacuum without degrading The material described in the study poses a possible alternative to conventional coatings, although it has yet to be demonstrated whether its advantages are sustainable outside the laboratory. US stealth fighters, such as the F-22 and F-35they use absorbent compounds They offer good initial performance, but require constant and expensive maintenance. In China, the J-20 has been seen with a coating apparently more stable, although those impressions come from displays and not verifiable technical data. The difference, for now, is in the discourse rather than the evidence. The new coating is still far from becoming a technology in real use, but it illustrates the direction of Chinese research in stealth materials. The challenge is not only to achieve high performance in the laboratory, but to keep it in flight and under extreme conditions. Chinese scientists aim to solve one of the most persistent limitations of modern fighters: the fragility of absorbent coatings. If the material achieves this stability, it could open a different stage in aircraft protection. In Xataka We believed that the F-16s were Ukraine’s great achievement: it has just taken the first step to receive up to 150 European Gripen fighters Beijing has set 2035 as the horizon to complete the modernization of its armed forces. In this context, the development of new compounds, sensors and materials responds to a broader policy aimed at strengthening its technological and military industry. Each advance in the field of stealth materials is interpreted not only as a technical improvement, but also as a step towards greater strategic independence. Images | Wikimedia Commons | Arthur Wang In Xataka | The Chinese ambition to lead each and every area of ​​the planet has found its next adversary: ​​Jaén (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 In China they have created a material for their fighters that opens a new technological direction: it aims directly at radars was originally published in Xataka by Javier Marquez .

There are so many drones in Ukraine that they have become cars. So the army has created a DGT to regulate its traffic

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In a battle where drones are already they don’t need humans to coordinate and attack, and where these combat devices have taken technological warfare to a new crazy phase where they are knocking themselves downsooner or later it had to happen. Drones and Ukrainian airspace are increasingly similar, for better and worse, to cars and roads around the planet. The congested sky. The Ukrainian front has turned into an airspace so saturated with drones that its operators they must negotiate between them to avoid collisions and, above all, interference from their own electronic warfare systems. In an environment where thousands of devices they fly simultaneouslythe pilots establish “flight corridors” temporary, agreed by group messages or by radio, to cross areas under friendly control without being shot down by the signal jammers of their own army. This exchange, at times chaotic and spontaneous, reflects how modern warfare is fought both in the air and on the electromagnetic spectrum, where waves, rather than bullets, determine who sees, who shoots, and who survives. The invisible war. we have told before. The battle for dominance electromagnetic spectrum is already one of the most decisive of the conflict. each side try to saturate or protect the other’s frequencies through jamming systems that can nullify drones, missiles or radars, but also blind their own. Pilots as Dimko Zhluktenkoof the Ukrainian Unmanned Systems Forces, they explain Insiere that his work includes identifying Russian electronic warfare systems to destroy them before they block the signal of his drones. Other operators, however, they must coordinate with several units simultaneously, seeking a balance between protecting their troops and the need to keep flight routes open. In many cases, the commanders who control the jamming systems are at higher hierarchical levels, so units on the ground can barely request changes, with no real ability to turn them off or adjust them according to their missions. The chaos of the sky. The device density in the air has created an environment almost impossible to manage. Commercial drones modifiedappliances FPV explosives, reconnaissance dronesinterceptors and systems electronic warfare They compete for space and signal, in a landscape where distinguishing between friend and enemy is increasingly difficult. Many soldiers shoot or activate their inhibitors at any approaching drone, unable to identify it precisely. The similarity between the Russian and Ukrainian models aggravates the confusion, and sometimes the Ukrainians themselves Allied aircraft are shot down out of fear or uncertainty. In this scenario, the war resembles a gigantic air traffic jam where each operator must warn, coordinate and wait their turn to cross the front without being blocked or destroyed by their own side. Non-stop race. In the background, Ukraine and Russia compete to develop technologies capable of resisting the electromagnetic lock. New models include drones no dependence on GPScontrolled by fiber optic cableequipped with artificial intelligence or capable of changing frequency to escape enemy “noise.” However, these innovations slowly reach the front lines, where they coexist with outdated equipment that requires improvisation and constant communication. Thus, each flight is a negotiation between units, each mission a bet against the chaos of the spectrum, and each Russian advance forces an immediate Ukrainian response. The new frontier. Ultimately, the conflict in Ukraine has turned the sky into a laboratory where 21st century war is redefined. It is no longer just about tanks or missiles, but about waves, signals and microprocessors. The coordination between drones and interference systems reveals both the maturity and fragility of an army that has made ingenuity its main weapon. And it also shows a limit: the more saturated the spectrum, the more likely it will be that the technology will turn against those who use it. In that invisible space, where every interference can decide the fate of a drone or a life, Ukraine is waging a war as modern as it is paradoxical: a war in which communication It is the only way to prevent the defense from becoming its own enemy. Image | TASS In Xataka | If the question is how to end the war in Ukraine, the US has a disturbing solution: threaten Russia with a missile In Xataka | Russia’s technological superiority over Ukraine is growing every day. And all thanks to a friend: China

The French Revolution proposed dividing the day into ten hours. It didn’t catch on, but an artist has created watches that respect that idea

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Apparently it is a normal clock: its division by hours, its two hands (yes, we already know that if you are from Generation Z it is very possible that you do not know how to read time in this device, but let’s start from the fact that it seems to all of us that this looks like a traditional watch)… However, as soon as you look closely you will see that there is an extraordinary difference: the dial is divided into ten spaces instead of the usual twelve. In the name of Lewis Carroll, what the hell is this. Ruth Evans, provoking. The clock is the work of artist Ruth Ewan and is part of a series of similar creations, called ‘We Could Have Been Anything That We Wanted To Be’, originally presented at Folkestone Artworks in 2011. It is a triennial of urban art works that, in its latest edition, includes 91 works by 52 artists. Ewan, a Scottish artist whose works always contain a social message, has retouched for the occasion some of the watches she created almost fifteen years ago for the contest. How they work. The strange arrangement of the numbers is not an aesthetic decision, but rather we are looking at clocks that divide each day into ten hours, each hour into one hundred minutes and each minute into one hundred seconds. Midnight takes place at ten and noon at five. Currently, you already know: a day has 24 hours, each of which has 60 minutes, each with 60 seconds. From there we also use decimals: a second has ten tenths of a second, one hundred hundredths or one thousand thousandths. But Ewan’s is an absolutely rational division of time that is not capricious: it has a historical basis. Making history. As we already said in its day, The ten-hour system was officially implemented in 1793 as part of the radical reforms spurred by the French Revolution. This decimal system was intended to simplify calculations and break with the past, aligning itself with other revolutionary aspects such as the republican calendar that divided the year into 12 identical months, of 30 days each and 10 days per week. The use of decimal time was mandatory from the end of 1793 until April 1795, when its use was suspended after only 500 days, due to great popular resistance and the difficulty of adapting daily life and existing clocks to this new system. Some watchmakers attempted to create watches with dual numbering (decimal and traditional) to help the transition, but the change clashed with customs and business needs that depended on the traditional system. What does it mean? Ewan’s intention with this watch is to show how changes in the organization of time can also symbolize profound social transformations, and proposes a new way of perceiving the world and questioning current systems. Let us remember that revolutionary France sought to introduce reason, equality and efficiency in all aspects of social life, including the measurement of time. With something as simple as reminding us that time can be perceived very differently with a simple change in the artifacts with which we measure it, Ewan proposes a possible new social order, and an invitation to imagine alternative futures. The work questions the rigidity of capitalist chronological time, and that is why Ewan prepared and distributed some pamphlets that spoke of the utopian concept of time in the Revolution. In Xataka | Physicists do not know precisely what time is. Still, they suspect it’s just an illusion.

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