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Serial murderers had their boom in the 80s. Today they are a statistical rarity

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If there is a genre of entertainment that has emerged strongly in recent years, that is certainly True Crime. There are series, podcasts and even documentaries made with AI On real crimes. Many of them deal with the stories of dreaded serial killers; Ted Bundy, Jeffrey Dahmer, John Wayne Gacy… They all have their series. However, although serial killers have become a cultural phenomenon, the figures show that their activity was concentrated in a very specific period of time and in a special country. Why are there no serial murderers? An American phenomenon Number of serial murderers per country. Source: Radford University He FBI defined the serial killer as the one who has killed more than two people on two different occasions. According to him Annual series murderers report and victims of the University of Radford of 2020, 67.7% of registered cases came from the United States. There are countries that have registered more than a hundred cases such as Japan, India, South Africa, Canada or England with almost 200 cases. However, we talk that the United States has 3,690 documented cases, while the rest of the countries in the combined list reaches 1,168 cases, the difference is abysmal. Because There are more serial murderers in the United States? A reason is that there is More records and statistics that in other countries, so the real percentage could be biased. The media impact and glorification From some of these murderers it would also have been a determining factor for others to act as imitators. In addition, the ease of geographical mobility within the country facilitated that these profiles could act without being detected. Three decades of “fashion” Cases of serial murderers in the United States. Source: Radford University, Graphic of Vox.com The graph represents the moment in which the murderers began to kill and we see how most of the most notorious cases They are concentrated in a period of three decades. Here the crimes of Ted Bundy, Jeffrey Dahmer, David Alan Gore or Tommy Lynn Sells occurred, to name a few examples. The wave began to rise in the late 50s, when the criminal records were improving, rose radically in the 70s and reached its peak in the 80s. According to IFL Sciencein the 80s there were 254 active serial killers, with its maximum peak in 1987 where there were more than 400 victims. In the 90s the figure dropped to 227 active murderers. The trend was falling pronounced and in the 2010 only 66 cases were recorded. Why there are no serial murderers Researchers blame the decline of serial murderers to several factors, especially related to Advances in criminal investigation. Police records are more exhaustive and communication between the different security forces is better. This allows to find similarities in cases and facilitate the identification of possible serial profiles. Research methods are more sophisticated. The DNA test It began to be used in cases of murders In the mid -80sbut the first techniques were more rudimentary, the analysis took a long time and there was not a wide database to compare. Technological advances are another determining factor. The presence of Security cameras In shops and public places he has helped resolve countless crimes worldwide. For example This study He concluded that the British transport police could increase its crime resolution rate from 23 to 48% thanks to the security cameras material. The Internet searches They have also been decisive in many cases, such as Brian Walshethat when his wife disappeared he looked on Google “how much time passes until a body begins to smell” and “10 ways to get rid of a corpse.” This, together with images of the suspect buying cleaning material and an ax in Home Depot, led to their arrest for murder. But perhaps everyone’s greatest advance has been mobile telephony. In addition to the images of the cameras, the triangulation of the signal of mobile phones It allows to locate both the suspects and the victims, being able to reconstruct their movements. Mobiles are key tools in many investigations and we have seen it in notable cases such as Asunta Basterrahe Urban Guard Crime or that of Diana Quer. The decline of serial killers coincides with a Generalized fall of violence since the 90sbut without a doubt all advances in research and technology have made it easier for today to catch the culprits. In potential serial murderers, in many cases They do not commit a second crime. Cover image | Netflix In Xataka | A person has made Media Spain hook the most horrendous crimes: Clara Tiscar and ‘Criminopathy’

European cars manufacturers promised them happy with the hydrogen battery. Reality has hit them

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In search by Eliminate fossil fuels From cars, electrification seemed the best option. Have 100% electric, hybrids and plug -in. However, some companies They seemed not to be convinced at all with the electric ones, so they began to boost the development of cars moved by ‘pilas’ of hydrogen. Some are getting off the shipand the last one is a Stellantis that has been closely to the controversy These last years. BMW has another opinion and defends that the hydrogen battery is a strategic alternative for Europe. Against what? Against China. Short. In a brief releaseStellantis (which, remember, is the megacompañía that arises after the Fusion of Fiat, PSA and Chrysler) He confirmed a few weeks ago that he interrupted his hydrogen fuel cell technology development program. They affirm that “the hydrogen market remains a niche segment, without perspectives of economic sustainability in the medium term.” And this affects all the divisions they were developing: Cars. Small vans. Large vans. Next steps. The company comments that the personnel who were doing R&D work related to hydrogen technology will be redirected to other projects and that now what it is to focus on what it sells: hybridization and conventional electric batteries. “We must make clear and responsible decisions to ensure our competitiveness and meet the expectations of our customers, as well as continue with our offensive of electric vehicles and hybrids of both passengers and light commercials,” explains Jean-Philippe Imparato, Chief Operating Operating Officer for Enlarged Europe. Issues. The main argument that underwent the hydrogen strategy, with cars on the street such as the Hyundai Initium or the Mirai de ToyotaIt was the speed of loading. If the electric took some dozens of minutes to achieve a decent autonomy, one of hydrogen was closer to the times of a gasoline/diesel. The problem is that it is not entirely true. Toyota has been one of those who More has driven the hydrogen batteryeven competing with hydrogen -driven cars, such as GR LH2 Racing Concept or the Gr yaris rally2 h2 concept For rallies, but in everyday use, hydrogen looks like everything except practical, away from that more classic “plugging and reproducing” liquid fuel. The reason? GR LH2 Racing himself needs a cryogenic system at the cargo station that maintains hydrogen at -253 degrees Celsius. This implies advanced isolation and advanced manipulation, which makes it very little practical out of a very specialized competitive environment. Among other thingssince the energy density of hydrogen is almost nine times lower than that of gasoline and storage is complex. Without ‘hydrogeneras’ there is no FCEV. Returning to Stellantis, the group was not working with the hydrogen pile for the distant future, but immediately. This year they were going to launch a new range of vans, the Pro one fed by hydrogenthat evidently will not see the light. And although there are still companies that keep some hope for the hydrogen pile, the truth is that without refueling points, technology seems unsustainable. In the United States, Toyota has faced collective demand by Mirai owners who ensure that the brand lied to ensure that reposting would be as simple as in a gasoline. There are practically no load points, with just a thousand open hydrogeneras worldwide for public use. And last year they began to close in Germany because they were not used. BMW and his “hold me the cubata”. Trucks are another song. The numbers are there, With strong consecutive falls in 2023 and 2024 that seem to have punctured, at least for now, that fever for the hydrogen pile for conventional cars. However, the turn comes from BMW. The German company has publicly defended that hydrogen is an opportunity for Europe not to depend so much on the China’s battery industry. And others like Volvo maintain projects Hydrogen for trucks. It has been the CEO who has insisted that Europe must bet on multiple roads and that, in a scenario in which China controls the production of Rare earth Essential to create batteries, and they are also the most manufactured batteries, Europe must have a BM plan, BMW has no car with a hydrogen battery and is working on a SUV that They will launch at some point in 2028. We will see how the market is then. Image | H2 Mobility In Xataka | Nikola had everything to revolutionize the world of hydrogen trucks. Now is on the verge of bankruptcy

The walls of a medieval church of Álava hid figures of wild boars, turkeys and discs. No one knows what they do there

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Cruces, Statues of saints, fresh with biblical scenes, representations of the Virgin Mary or the apostles, even devil figures twisting. Within a church one expects to find a wide range of Christian imagery, but when A few years ago Historians began to clean the oldest wall of The Church of ArbuloIn Álava, they found something very different. Under layers and layers of lime and paint began to appear something other: figures of the 12th century that show mysterious quadrupeds with claws, faced birds and wheels. Now the experts They wonder What the hell do they mean. In a place in Álava … More specifically in Arbulo, in the municipality of Elburghe stands An ancient church in honor of San Martín de Tours. Most of the temple we see today rose between End of the fifteenth century and the beginning of the XVI, but its builders left the remains of a previous building, from the Romanesque era. Despite its historical value over time the Church ended in a dilapidated state. At the end of the XX its roof deteriorated and began to leak water through the vaults, which among other things ended up the furniture. Rescue Restorers. The temple situation was so critical that it was closed Between 1999 and 2008 and by 2004 a restoration was launched that included the disenchanted of the walls. The specialists had good reasons to do so. As remember Historian Gorka López de Munain, from the University of the Basque Country (UPV), moisture forced to remove the altarpiece and disagree with the walls of the apse, which left the layers of paint accumulated over the centuries, including what seemed “strange motifs of reddish hue.” What kind of paintings? The experts appreciated several layers on the walls, but there was a specific one that caught so much the attention of López de Munain that he decided to dedicate A broad article in Of half avo. Which? The first, located in the Apsid wall and that in the absence of more detailed analysis the researcher date between the twelfth and thirteenth centuries, so it is associated with the primitive Romanesque temple. Today we know that their author (or authors) traced them using ocher pigments mixed with binder and that they did not remain too exposed. Before the XV they were already covered with a new layer of lime. And the big surprise arrived. The most curious thing is not, however, with what pigments were prepared, but what they were used for. In a Christian temple one would expect to meet symbols associated with that creed: crosses, representations of Christ and the Virgin, biblical scenes … not on the wall of the Church of Arbulo. Over there, In words of the UPV teacher, what appeared were representations of animals and geometric shapes “in a seemingly random disposition.” In a wide surface, of just over 24 square meters (m2), experts found remains that at origin had to decorate the head of the primitive church and have bullow the curiosity and imagination of historians. “In this first layer, reasons of great variety and formal wealth were painted: swine -siled quadr The article of Of half avowhich recognizes that the figures of the absidal wall of the Church of Arbulu “do not respond to the best known repertoires of their time.” “Something unexpected”. López de Munain is not the only one to which the images of the temple have surprised. In 2018, in An interview With eitb.eus, Isabel Mellén, of the project ‘Medieval Álava’, I recognized His enthusiasm. “What was painted, in our eyes, is something unexpected. What we hope to find in a church are religious paintings, with Christian scenes or symbology, but what is shown in Arbulo has nothing to do with all that,” collects the analysis of the Basque chain. Instead of pantocradors or crosses What they show The walls of the temple with thick strokes and reddish tones are beasts: birds, animals with pigs or wild boars, discs with radios, asterisk shape of lis flowers drawn with basic and rough lines … a peculiar iconography that leaves a question as fascinating as difficult to answer: What do you mean exactly? Questioning the story. From the outset and after clarifying how difficult it is to interrogate the images in search of meanings with the eyes of the 21st century, the researcher slides an idea: at least part of the figures seem to reveal a funeral connotation. For example, among the images rescued in Arbulo there are real turkeys, a recurring theme throughout the Middle Ages, loaded with polysemy and has been used regularly in mortuary contexts. “The fated birds painted in Arbulu inevitably evoke those that drink together of a crater or peck a cluster of grapes, common in the steles and romantic and very frequent tombst Point out The Basque researcher, who recognizes in any case that in the images of Arbulu the birds do not appear with other icons, such as drinks, so “its nature is difficult to identify” and “elusive”. Are there more meanings? Yes. In his analysis the researcher pays attention to other elements that have emerged on the Arbulu wall, such as eight radios albums. “Those wheels or radiated stars appear frequently in the discoude steles of both the Basque Country and of nearby regions,” Slide. Its meaning is also suggestive and invites you to look, rather than consecration crosses, to designs that can often be seen in medieval funeral steles. The tree figures have also led him to slide the hypothesis that they can be linked to the paintings of a historical character, Gastea de Arburu, of Gallic origin but buried in the region. But … why? The big question. Why paint a Christian temple with birds, solar disks and quadrupeds with claws, some with the appearance of wild boars? In An interview with The country López de Munain slides some theories, such as their creators wanted to represent on the walls what they saw in their most immediate environment or … Read more

A Spanish C15 that was born for the field and ended up running next to porch

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Who has not ever felt the impulse to buy a Citroën C15. This mythical French van has been the pillar of the agricultural industry of Spain for 40 years, and at the same time it is Focus of memes and jokes to each more hilarious. I am sure that many have had that crush with a classic car and we have thought about “I buy it now.” It happened to me with a Citroën Xantia Activabut I have not finished consummating. Gerard, a 20 -year -old Spanish boy, not only got carried away by a “heated” when buying a C15, but has put it in mythical nurburgring circuit. But his story began a couple of years ago, when he needed a car to participate in a Rally by Morocco. And far from more exotic alternatives, he chose a C15 that already has little of his soul from C15: he set up a new engine that elevates its power above 100 hp. And, for a 1985 C15 whose most powerful original engine had 69 hp, that is, a lot. And has taken her to her new natural territory: Nurburgring. A championship C15 for 200 euros … that reaches 200 km/h In This video From Axel Espxnur we are presented to Gerard Casals. Now he is 20 years old, but at 18 he bought a C15 for just 200 euros, with just over 200,000 kilometers and got the impossible: break the engine. This is curious because the C15 is the object of both jokes and admiration, precisely for its resistance and mechanical reliability. In fact, Gerard says that, with all that way behind him, he had not had Not an oil change. The reason that led him to buy this concrete model was the budget, but also because in conditions as hard as those of a rally in Morocco, reliability is needed and, above all, mechanical simplicity. If something breaks, You have to be able to fix it easily. His model was the 60 hp, less than the most powerful that could be bought, but when breaking the engine, he thought to replace it with one that would raise the characteristics of the van. Which? A 1.900 CC 100 hp turbod. taken directly from a Corttoën Xsara. In the axel video we can see that the engine has little to do with that of the original C15. It was not as simple as removing an engine and putting another, since some aspects of the interior had to be realistic, setting up the admission of a Nissan Terranonew sleeves, new water pump and more generous wiring. 100 hp XSara engine within C15 | Axel Spxnur video screenshot With that new heart, and with its barely 750 kilos of weight, its C15 reaches a maximum speed of 200 km/h. “Everything moves, in the end it is a car that has nothing insulating and is more thought for the field than for the road,” he says. The gearbox is also Xsara, five -speed. Consumption? Less than six liters. In fact, he affirms that, from Barcelona to the Nurburgring circuit, he has not needed two deposits. They are 1,200 kilometers. Apart from the engine, there are another series of modifications that make this C15 a real beast not to load melons, but for more demanding roads. The subbase is that of the original ‘van’, but has Koni shock absorbers, new brake tweezers and a 165/70/r14 tire for circuit. To go somewhat more comfortable, it has bmw seats with electronic regulation, but the interior is a sheet, as in the original. Run. “The French go crazy” Casals states that the first round in the circuit woke up laughs. He saw how cars much more thought out for this environment, they spent the stickers, but have taken many photos and what “The French go crazy”. And it is not for less, since the car draws a lot, a lot of attention. In the 7:47 minute of the Axel video we can see the van rolling in the asphalt of ‘Green Hell’. In another video of the YouTuber Misha Charoudin, we can see another round with the C15, but with An interesting added: the speedometer. If you have ever ridden in a C15, you will know that the needle is not so agile when climbing, but in the case of this modified C15, it is a show. There are times when you see the tires scream and give you a loose laugh because, obviously, it is out of its natural environment, but the truth is that Gerard’s, although very interesting in the modifications he has made It is not even the first C15 nor, above all, the first ‘weird’ vehicle that can be seen in Nurburgring. For the German asphalt we have seen KARTSa DHL distribution van, caravans, limousines, a scooter and people who directly go with a BMW with Baca and a couple of bicycles coupled. Of everything except aerodynamic. But for many oddities that we see in ‘Green Hell’, surely few reinvent a classic like Gerard’s C15. Images | Axel Espxnur, Misha Charoudin In Xataka | A millionaire ran out of a card and unable to use its supercar: its own nürburgring was built in the garden

Astrophysics do not know how to certain how the first stars of the universe formed. This is about to change

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All stars are different. Each of them has its own character. His own “personality.” However, THE MECHANISM OF NATURE that has triggered the birth of most of those we can observe is always the same, so, in some way, we can consider that All are related. The stars are born from clouds of dust and gas that are disseminated by the universe, and that began to form Shortly after the Big Bangwhich took place, according to the estimates of scientists, almost 14,000 million years ago. The analyzes that many research groups are carrying out defend that the first stars were born shortly after the formation of the universe. In fact, it is currently considered that the oldest known, whose name resists me to transcribe because it is a cluster of letters and numbers that will not contribute anything, was born nothing less than 13.6 billion years, which reflects that it is almost as old as the universe itself. A team of astronomers from the National University of Australia, which is the group of scientists responsible for its discovery, assures which is sixty times larger than our sun and is located in our same galaxy, the Milky Way, but to 6,000 light years from the earth. Just to a jump. Our protagonist is the oldest molecule known in the cosmos The most interesting thing is that, despite their age, astronomers are convinced that there are even more archaic stars. This suspicion relies on the fact that our 13.6 billion giant is composed, in addition to hydrogen, carbon, magnesium and calcium. These chemical elements have necessarily had to be previously manufactured by one or several stars of an even older generation and with a very low presence of metals, understanding as metals all those elements that are heavier than helium, regardless of their position in the periodic table. The problem is that the knowledge that astrophysics have about these primal stars is still very limited, although this scenario seems to be about to change. And it is that a research team of the Max Planck Institute of Nuclear Physics, which is housed in Heidelberg (Germany), has identified unexpected behavior of helium hydride (heh⁺), which is the oldest molecule known in the cosmos. It consists of a helium atom (He) and a proton (H⁺), and astrophysicists believe it was formed in the universe shortly after the Big Bang, when the temperature was reduced enough so that the helium and hydrogen atoms began to join. Astrophysics of the Max Planck Institute of Nuclear Physics have managed to reproduce the conditions of the original universe using a cryogenic storage ring One of the reasons why helium hydride is so important is that its appearance triggered the beginning of chemical bonds in the universe and strengthened the foundations for the creation of molecular hydrogen (H₂), which is the fuel that feeds the stars. The strategy used by astrophysicians from the Max Planck Institute of Nuclear Physics to recreate how this molecule behaved just after the Big Bang is amazing. And they have managed to reproduce the conditions of the original universe using a cryogenic storage ring. This experimental ingenuity is used to store ion beams for prolonged periods of time at extremely low temperatures and under ultra -oral vacuum conditions. This allows scientists to study the properties of molecules as unstable as helium hydride without being destroyed very quickly when colliding. As explained in the very interesting article that these astrophysicians have published in Astronomy & AstrophysicsDuring their experiment they realized that instead of slowing down as the temperature dropped, the reaction between helium hydride and the deuterium remained constant. This finding is important because in the primal universe helium hydride interpreted a leading role in the primordial gas cooling process. This cooling was essential so that the clouds of dust and gas collapse under the effects of gravity and give rise to the formation of the stars. In short, what these scientists have discovered is that Helio hydride had a much more active role in the primary chemistry of the universe of what was believed so far. Taking this idea as a starting point, astrophysicists onwards will be able to rethink the theoretical models that describe the processes involved in the formation of the oldest stars. Image | POT More information | Astronomy & Astrophysics In Xataka | The CERN has made an incredible pirouette: its last discovery has the ability to revolutionize quantum computers

In the search to eliminate the lithium of the batteries, we have found the best candidate: multivent ion batteries

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Lithium ion batteries move the world and, in the era of electrification, every time They are more important. They have a series of limitations and Lithium is a finite resource With a high environmental impact, which is a problem if we want to electrify mobility. There the future solid state batteriesbut meanwhile, a group of NJIT researchers He has had an idea to give more life to the current technology: squeeze the maximum current batteries. As? With multivent ion batteries. Multivalent ions. A team of researchers from the New Jersey Institute -Njit- had an idea. If lithium is key to current batteries, but also scarce, We could use more abundant elements such as magnesium, calcium, aluminum or zinc as a replacement or to ‘dopar’ current batteries. The objective was to maintain, at least, the properties of current batteries and, if possible, improve storage benefits without depending on lithium. There the multive ion batteries come into play. If Ion-Litio have only one load, multiveous ion batteries that use the aforementioned elements allow two or even three positive charges. This property, in theory, allows you to store more energy by ion. Not everything is perfect. This property, as exposed in the studyit allows to store more energy by ion, but if they are not used it is because they present an important technical challenge. Multivalent ions are larger than lithium and have a greater load, which makes their movement difficult within current materials. To make it easy, imagine that the interior of the cells of a lithium -ion battery is a sponge with a certain number of recesses that catch particles. In a multivete ion battery, it has more holes and each one catches more particles, but the sponge is also greater. Accelerated by AI. That was the great limitation of the technological industry, but what NJIT researchers have done is to put the artificial intelligence To work. In this context, the use of AI is ideal because it allows simulating a large range of possibilities, of which the most convincing to test them. The end of the AI was to find new viable compounds to create multive ion batteries and, for this, they used a dual approach. On the one hand, a model called CDVAE (Variational Crystal Dissemination Self -coach) that was trained with known crystalline structures to generate new materials. On the other, a model of LLM LLM LANGUAGE Aphinated to select only the most thermodynamically stable structures. When they finished the work, they discovered five new porous metal oxides that are shown as ideal for transporting multivalent ions quickly and safely. “One of the greatest obstacles was not the lack of promising chemicals for batteries, but the practical impossibility of trying millions of material combinations,” said Dibakar Datta, leader of the research team. “We resort to generative artificial intelligence as a rapid and systematic way to explore that vast panorama and detect the few structures that multivalent batteries could really do practices.” Structures isolated by AI models. Section A is that of the CDVAE. The B is that of LLM Beyond the batteries. The team states that it validated the structures generated by AI using mechanical-chanting simulations and stability tests, confirming that these isolated materials could be synthesized with great potential for applications in the real world. Currently, and with those results, from the NJIT they are collaborating with other laboratories to synthesize and test those materials designed by AI. And something that Datta highlights is that, as a collateral effect on research, they have demonstrated once again that AI can be “a quick and scalable method to explore any advanced material, from electronics to clean energy solutions, without relying on extensive tests by test and error.” Once the best results are isolated, of course, it is time to try them in the real world, but much of the previous work It accelerates considerably. A mere patch? Now, although changing the ‘formula’ of lithium -ion batteries can be a good patch, the objective of the industry is still put in the implementation of solid state batteries. The catalyst in them is not a liquid, but a solid that allows us to solve many of the problems of current batteries, while offering a Greater energy density and faster load times. They are batteries that are already developed and that are being driven by Much of the automotive industrybut the problem is that it is a more expensive technology and is not settled. Bringing it to the real world, for example, Mercedes is already in itwhile other brands like BMW say that, for the moment, they are not in their plans due to precisely the price. Images | NJIT, Cell Reports Physical Science, Kumpan Electric In Xataka | An extraordinarily promising substitute has come out of the batteries. And yes, it has everything

Review with characteristics, price and specifications

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I have been with the Oakley Metas almost two weeks and the experience has been … complex. It is not that they are bad smart glasses – in fact, they are technically superior to the Ray-Ban Meta In several aspects – but There is something in your proposal that does not finish curdling. It is as if they had wanted to cover too much and, in the process, they lost their identity. I started with illusion. I used some Oakley to run for a couple of years, so when they announced these smart glasses I thought they would be perfect for me. The reality is more nuanced. Technical tab of the Oakley Meta Oakley Meta HSTN dimensions and weight 145 x 51 x 22 mm 53 grams (mount) / 133 grams (case) Image capture 3024 x 4032 pixels 12 MP, Ultra wide angle, 100 ° of FOV Video capture 1440 × 1920 pixels or 2203 × 2938 pixels at 30 fps audio system 2x microaltavoces 5x Microphones Voice assistant Goal AI Controls Tactile By voice memory 32 GB Flash (+1,000 or +100 photos of 30 seconds) battery Up to eight hours with an intermittent load and use Up to 48 hours accumulating loads with the completely loaded case connectivity WIFI 6E Bluetooth 5.3 USB-C of load (case) compatibility iOS 15.2 or Android 10 onwards price 549 euros The full name, by the way, is ‘Oakley Meta HSTN’. They are not the wayfarer The Meta Ray-Ban had the enormous success of incorporating electronics into iconic design glasses. Wayfarer are wayfarer, carry or not camera. AND They convinced me from the first minute with them. The Oakley Meta, on the other hand, seem to have stayed in no one’s land: They are not sports enough to run comfortably. But they also have the necessary elegance for urban day to day. The design is peculiar. Neither masculine nor specifically feminine, with those pronounced angles near the nasal bridge and that white frame that shouts “look at me”. It is curious how a product that should go unnoticed exactly the opposite. I have taken them down the street, running, on the beach, and They always attract the occasional look. Not of the type “What chulat glasses”, but rather of “What are you wearing in the face?” People suspect something happens. Which takes me to the next point. The problem of white and the obvious camera The white color (although they are officially “warm gray”) is not a great success. It makes the camera much more obvious (a black gap next to each lens) and not only when the LED lights to indicate that you are recording. With a white mount is too much evidence of the camera, and can intimidate who we have in front. Image: Xataka. The black-target ray-ban camouflage this element better; They only betray their technological nature when that white point turns on. With the Oakley Meta, People already suspect before you do anything. This takes me to an anecdote that marked me. He was on a Valencian beach, sitting with the glasses on, when just in front of a mother began to change – disnain – to her little daughter, who would not be more than six years old. I felt very uncomfortable and took off my glasses immediately, but during those seconds I thought about how delicate the situation could be. If someone had seen that he wore those glasses with camera in front of the girl, even if he was not recording anything, a very serious problem could have been mounted. This has nothing to do with Oakley, but with smart glasses. As a society we will have to reach certain agreements on this type of product. It is different to carrying a mobile: With the phone, the act of recording is evident: you raise it, you point it, it is deliberate. With these glasses, just looking, you are already “pointing”, even if you have no intention of capturing anything. Social challenges that we are going to have to solve in some way with this technology. We have already seen some thorny case Even in Spain. The sports experience that was not I have run with them on several occasions: from 6 kilometers short exits to a long 21 -kilometer training through a series on an abandoned athletics. The idea of having a two in one – sun gaps and bone driving headphones – is brilliant on paper. It is the combo that I use separately. The idea of combining them in a single product sounded great. This is what I usually use to run: Oakley analog + bone driving headphones. The Oakley Meta integrate both, but they have not convinced me. Image: Xataka. In practice, they did not convince me. The additional weight is noted. It is not dramatic, but after a few kilometers you start feeling small shakes with each stride that you do not experience with normal Oakley. The audio is good enough And I have no complaints about him. It is better in static than in motion, but it is somewhat lower. Running slowly there are no problems, but when the speed uploads, the Oakley Meta tends to slide forward and give small shakes on the nasal septum. Or at least that has been my experience. GIF: Xataka. Besides, Sweat, rain and splashes resist with its IPX4 certification. They cannot immerse themselves and invite you to take care, but at least we can sweat with them. In any case, it is as if they had tried to make sports glasses without fully committed to that audience. Therefore, once again, the land of anyone and the loss of identity: they want to be several things at the same time so they stop being really good in something more concrete. Of course, you have to recognize something: Gold polarized prizm lenses are spectacular. Everything is seen with a gold-yellowish tone reminiscent of the films set in New Mexico, as if it were permanently in the … Read more

five perfect light computers to take class

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There is very little for the return to school, so if you are looking for a good computer to take the institute or university (provided they are allowed to take them) or to study at home or in the library, we have reviewed a review of Five laptops focusing on its size, weight and price. In addition, to avoid any mess with the software, all computers come with Macos or Windows operating system. MacBook Air M4 by 999 eurosone of the best proposals both for its size and for its weight, power and price. LG Gram by 868.99 eurosan alternative to the MacBook that includes artificial intelligence functions and a good battery. Asus Zenbook 14 by 999 eurosa laptop with OLED screen and artificial intelligence functions. Lenovo Yoga 7 by 749 eurosa laptop convertible OLED touch screen. Samsung Galaxy Book4 Pro by 801.51 eurosan ultrafine laptop with good processor. MacBook Air M4 Like more or less the macos operating system, the truth is that the MacBook Air M4 It is one of the best laptops to study thanks to its size, weight, power and price. By 999 euroswe talk about a 13.6 -inch laptop that weighs only 1.24 kg. Includes the M4 chip which offers both good power and performance and compatibility with Apple Intelligence. In addition, one of its strengths is that its battery has a Autonomy of up to 18 hoursthat nothing is wrong with forgetting the charger. MacBook Air M4 (16 GB, 256 GB) * Some price may have changed from the last review LG Gram As an alternative with Windows, the LG Gram He is also an interesting computer for the school. It can be found in the 14Z90ru configuration by 868.99 euros and stands out mainly because it includes a 14 -inch screen, Weigh only 999 grams and its theoretical autonomy is up to 24.5 hours (in practice it is lower). It also incorporates the Intel Core I5-1334U processor and comes with artificial intelligence functions through Co-Co-nursing. LG Gram (14z90ru) (16 GB, 512 GB) * Some price may have changed from the last review Asus Zenbook 14 Continuing with the proposals that come with Windows, the Asus Zenbook 14 In its configuration UM3406KA-QD076W is located in stores like Amazon by 999 euros. It is a computer that rides a OLED screen 14 inches and has a weight of 1.2 kg. It also offers artificial intelligence functions through COPILOT+its processor is the AMD Ryzen AI 7 350 and has military certification US MIL-STD 810H Military Degreeso it is quite resistant. ASUS ZENBOOK 14 (UM3406KA-QD076W) (16 GB, 512 GB) * Some price may have changed from the last review Lenovo Yoga 7 The most different proposal of this list is the Lenovo Yoga 7a convertible with keyboard and touch screen that in Amazon has a price of 749 euros. It is a particular laptop with 14 -inch OLED screen which has a weight of 1.49 kg. Its processor is the AMD Ryzen 6 8640Hs and has 16 GB of RAM and 512 GB of SSD. In addition, its battery offers a theoretical autonomy of up to 25.5 hours. Lenovo Yoga 7 (16 GB, 512 GB) * Some price may have changed from the last review Samsung Galaxy Book4 Pro Finally, we could not forget about Samsung Galaxy Book4 Proan ultradelgated computer that in Amazon has a price of 801.51 euros. This laptop incorporates a 14 -inch AMOLED screen with anti -reflex coating and touch panel. Monta the Intel Core Ultra 7-155H processor includes artificial intelligence functions to edit photos and its battery offers a theoretical autonomy of up to 21 hours of video playback. Samsung Galaxy Book4 Pro (16 GB, 512 GB) * Some price may have changed from the last review Some of the links of this article are affiliated and can report a benefit to Xataka. In case of non -availability, offers may vary. Image | Erik McLean in UnspashApple, LG, Asus, Lenovo, Samsung In Xataka | Best laptops in quality price. Which to buy depending on the use and eight recommended models In Xataka | What is the best portable computer to work in 2025. Tips and recommendations

How to cover the sun became more aspirational than tan

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For decades, summer was summed up in suns, forgotten sunscreen at the bottom of the bag and the eternal search for golden tan. But something has changed in recent years. While some people continue to bet on the Caribbean tone at any cost, a new trend has gained ground: covering the sun almost completely, until the solar phobia is touched. And although it can sound new in the West, in Asia it is not unusual. The ideal of clear skin. While in the West we obsess for decades with achieving a “healthy” tan – a term that, According to dermatologists such as Dr. José María Ricartit is still an oxymoron -, in much of Asia the approach has been another: covering itself. In countries like China or South Korea, protecting from the sun is not a trend, it is a norm. The beauty ideal is associated with clear, uniform skin, without spots, because a culture has been fed where perfect skin is status symbol. Recently, As reported by the South China Morning Postyouth of regions such as Fujian and Sichuan have taken this obsession to the extreme, using makeshift masks with cabbage leaves the size of an entire face. Beyond satire or aesthetics, priority is clear: avoid any effect of the sun on the skin. A phobia that reaches the West. Now, this fear of the sun expands. In the West, the minimalist bikini is being replaced by garments with UV protection and hats the size of an umbrella. According to The Wall Street Journalcelebrities such as Anne Hathaway, Halle Berry or Michelle Monaghan have been seen on vacation dressed in whole -body swimsuits, long -sleeved shirts and accessories designed to cover up to the last centimeter of leather. It is not a matter of modesty: it is prevention. In Spain, for example, actress Miriam Giovanelli has become one of the most visible voices In campaigns such as World Leather Cancer Day Of the international dermatological clinic, remembering that photoprotection is not just summer thing. In the words of Caroline Goldfarb, screenwriter and founder of Fishwife, collected by WSJ: “I have investigated the Burkinis, they are incredibly elegant. Muslim designers are icons of total coverage.” For many women like her, this hyperprotection is not a whim, but a way of fighting premature aging and skin cancer. Besides, According to Cleveland Clinicclothing with sun protection (UPF) blocks much more UV radiation than a common shirt. Of course, not every garment is worth: dermatologists recommend fabrics with UPF 50+, of closed plot, synthetic and in dark tones. But why? This phenomenon does not arise from nothing. As The dermatologist Amy Wechsler has explained in WSJmany women who invest in Cosmetic procedures —Theses, peels or rejuvenating sera – they also seek to protect that investment with UPF clothes, hats and glasses. It is part of the new self -care ritual: it is not only about looking good, but also being “intact.” This aesthetic obsession is not new, but it has intensified with the culture of collagen, filters and boom of the K-Beauty. As we have already written in Xatakawhat was previously sun cream, now is collagen dust, salmon DNA injection or facial analysis with AI. The implicit message: Aging is wrong. Covering from the sun may seem like a health gesture, but does not escape that logic. Isn’t it exaggerated? Solar prevention is important, but some experts already warn of excesses. Jennifer Chwalek, Dermatologist from UniDanderm, has warned in the WSJ On the risks of a total avoidance of the sun, such as vitamin D. deficiency Charlotte Palermino, aestheticist and founder of Dieux, ironized: “I don’t want to end like Gollum, with rickets.” Take care of yourself. Isolate yourself from the sun as if it were nuclear radiation, maybe not. An more symptom of aesthetic pressure? The sun has been demonized, but the context matters. According to the SAFE study79% of adults and 74% of Spanish children are exposed to the Sun in the most dangerous hours (11:00 to 17:00), and only 39.7% reaplies sunscreen every two hours. Protection is necessary, yes. But it is also to educate in its responsible use, without falling into fear or social pressure. As The dermatologist Amy Wechsler to WSJ has commentedmany patients who spend on cosmetic treatments also wear UPF clothes to “protect investment.” And it is that youth has become a mandate. From South Korea, where aesthetic tourism lives an unprecedented boom, to collagen fever in the West, the pressure to “look good” has fed a constant aesthetic anxiety. Between the sun and the mirror. From Korea to California, from collagen in coffee to the design burkini, what is at stake is not only the skin, but the time. We cover ourselves to take care of ourselves, yes, but also to continue looking young. The challenge is not just to avoid spots: it is to assume that the sun and wrinkles are part of life. Image | Pexels Xataka | The summers are so short in Finland that he has accepted a guest to enjoy the beaches: kilos of poop

Its electromagnetic catapults enter the final phase

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It is being a busy summer in the Chinese Navy. There are no official ads, but two of their new naval fighters have ‘hunted flying in formation. And these last weeks have appeared indications that China is already finalizing the tuning of the crown jewel military arm: Fujian aircraft carriers. As? Testing their catapults Electromagnetic with real airplanes. And there is a key date for a demonstration of strength: the 80th anniversary of the Japanese defeat in the Second World War. The Fujian. China has the largest naval force in the world, it is something Key in its strategy in the South China Seabut in the aircraft carriers they were late in front of their main rival: United States. Compared to 11 nuclear propulsion aircrafts of the American fleet, China had two (And none with nuclear propulsion, something they still have). The third, built entirely with its technology, is Type 003, known as Fujian. Is part of the Maritime propaganda of the country And, although it has not yet been delivered to the Navy, it has been caught on several occasions performing maneuvers on the high seas and With deck aircraft. And something that the Fujian highlights is to be one of the only two aircraft carriers in the world with Electromagnetic catapults. Electromagnetic catapults. Although huge, the track carrier is not long enough for the ships to take security. That is why the plane is promoted by means of a complex mechanical system composed of cables, pipes and pumps of a hydraulic system. It is expensive and needs high maintenance, but there is an alternative: Emals. Known as “Electromagnetic catapult”, this system is a linear induction engine that, by electromagnets, displaces a piece that hooks the plane and moves at full speed through a raíl, pulling the ship until the end of the track, releasing it at the last moment. Marking muscle (in secret). This system not only allows heavier or more fuel airplanes, but reduce The mechanical tension on the fuselage of the airplanes themselves, prolonging its useful life, occupies less space in the ship and also reduces the maintenance of the launch system. It is a system that He headed up on the other aircraft carriers that mounts it, the already operational Gerald R. Fordbut refined, it is the future of the aircraft carriers. Well, there are indications that China is already testing this electromagnetic system with real airplanes. As we see in The War Zonethe authorities have not yet shown the launch of airplanes from the Fujian, but in recent days they have Images appeared that show airplanes with the post -founded postquelors and in the launch position on the Fujian deck. In addition, images of plane shadows projected in the same cover have been seen. This indicates that it is most likely that China is already launching and recovering airplanes from the Fujian or, at least, is very close to doing so as part of the final tests before delivering the ship for active service at the end of this year. Test aircraft And not so secret. What is official is that China has another new member of the fleet known as the 076 Type. It is an amphibious ship that would be unique in the world by having a large cover that, in one of its parts, also hides an electromagnetic catapult. The ship opened on August 1 with a Pompose ceremonyand the interesting thing about EMALS systems is that they can not only be used to launch airplanes. As they simplify the process of launching aircraft and are a more versatile system than the hydraulic, it can also be used to launch unmanned aerial vehicles, or drones, a segment in which China is also very interested. Type 076 ‘Sichuan’ images Swarm attacks. One of the objectives of the Asian giant is to dominate the South China Sea. It is one of the most tense areas on the planet because it is the one that it shares with Taiwan or India, and we already know that both some as others are fortifying their maritime positions before possible Chinese military maneuvers. The United States also looks closely and That culmination of the modernization program of the fleet restless to Japanwho announced his rearm more ambitious Since World War II. And, in that maritime domain, ships with electromagnetic catapults play a fundamental role in allowing large -scale air operations. Compared to the hydraulic system, the EMALS allows you to launch a plane every 45 seconds, 25% faster than conventional catapults. This favors the adoption of tactics such as “swarm attacks”, or Alpha strikesin which aircraft are launched with a short cadence to saturate and overcome enemy defenses, achieving aerial superiority. China and the US, as usual. In addition to these advantages, it is a system that allows to extend the radius of action of the Naval Force to operate early alert planes and electronic warfare in a deeper way in the oceans. And this technology, as we say, only have both the United States – operating – and China with ships that are about to enter service. And the rest of the world? Well, he is working on it, but at another speed. France, for example, that has a fleet in which Charles de Gaulle is his crown jewel, is developing a system of Emals for Its new generation aircraft carriers that will enter service at some point in the late 2030s. India, which occasionally also Remember China that hashe is investigating it. And the United Kingdom, although he has considered it, has not yet adopted, since he has vertical take -off aircraft. September 3. The rivalry between China and Japan comes from afarbut a good time to officially present advances in the electromagnetic catapults of the Fujian can be this September, when the 80 years of Japan’s defeat in World War II are commemorated. The United States with the launch of two atomic bombs accelerated 6th Japanese surrender and you will be wondering what … Read more

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