It turns out that they have a loving arm that tastes the sex of females

Few animals are as fascinating as octopuses. These very intelligent invertebrates (since I saw “What the pulse taught me“I have a hard time consuming it) They have a brain in each armthree hearts, blue blood and a nervous system distributed by its tentacles. However, one of its greatest mysteries was truly intimate: how does a male manage, in the absolute darkness of a sea crevice, to locate the female’s reproductive system with surgical precision. Until now, science thought it was pure tactile instinct, but no: a recent study from Harvard University published in Science and led by Pablo Villar has discovered that the octopus does not look, it tastes love with the tips of its fingers. fingers suction cups. The love scene. Octopus mating is a sophisticated maneuver of extreme delicacy. The protagonist is the hectocotylthe third arm of the male: this tentacle is not used for eating or exploring, but for loving (in the most reproductive sense of the word). The maneuver is as follows: the male introduces this arm under the female’s mantle and there navigates between vital organs until he finds the oviduct, an opening of just a couple of millimeters. Once located, both remain motionless for approximately one hour, the time necessary for the transfer of sperm packets that the female will store throughout her life in a specific gland. Fingers that smell and taste. What the study shows is that the octopus does not “see” the path, but rather “feels” it on a chemical level. If it sounds strange, it is because humans actually lack that sensory modality, contact chemoreception. Going a little more into detail: the female emits progesterone, which will be the chemical lighthouse for the male in this internal navigation. He sensor of the hectocotyl is in its suction cups, covered by an epithelium similar to our retina or tongue, rich in receptors CRT1. According to the experiment, the male’s love arm is indifferent to other hormones: only when its CRT1 detects progesterone is the search and coupling response activated. It is literally tasting your goal with your fingertips. Why is it important. Beyond the obvious biological curiosity, this discovery has critical implications such as helping to understand how species separate and how biodiversity arises, as these receptors act as a sensory barrier: if the male’s receptor does not match the female’s chemistry, there is no copulation. On the other hand, they also put on the table the seriousness of endocrine disruptors as environmental contaminants, substances that act by imitating hormones that can confuse the male octopus and cause it to get lost. Finally, it is valuable information for aquaculture: octopus farming is a global challenge due to its complex reproduction and this finding is a step forward to optimize its sustainable breeding. From hunter to lover. One of the most fascinating aspects of this paper is how this ability originated: the octopus did not invent this loving arm out of thin air, but rather it is a recycling of an old tool for a new use. And originally the CRT1 receptors were used to detect molecules from their prey during hunting, but over time these receptors mutated with a kind of “hydrophobic pocket” that made it possible to develop that special sensitivity towards progesterone. An evolution from a survival sensor to one of genetic continuity. In Xataka | We knew that octopuses were very intelligent. But not to the point of having a “brain” in each arm In Xataka | England is experiencing an unprecedented invasion. The problem is that they are octopuses, and they are devouring everything they can find. Cover | Dear Sunflower

Plastic is the great recycling nightmare. Car battery acid aspires to be the great nightmare of plastic

Have a problem with recycling. Thus, in general and even in countries that the more they try and complicate things. But, specifically, we have a problem with plastic recycling. It is a difficult and therefore expensive process, rather than producing new plastic, which leads to a scenario in which potential waste accumulates. To complicate things further, there are many types of plasticsand some are terribly difficult to recycle. But the University of Cambridge has had an idea: a solar reactor to destroy those difficult plastics. And the secret ingredient is car battery acid. The data. Before entering the ‘invention‘ from Cambridge, let’s go with some context. Recycling is not collecting, and vice versa. An example of this is Japan, a country in which there are areas in which there are 45 different categories of garbage that citizens must separate and where only 20% is recycled. In Spain, with an infinitely less obsessive systemwe are around 39%. And what is not recycled is burned in Japan and sent to landfills in Spain. Focusing on plastic and according to Cambridge researchers, the world produces 400 million tons per year and only 18% is recycled. And, as I say, there are plastics such as nylon or polyurethane that are particularly complex to recycle because their chemical structure is very resistant, which makes breaking them down complex and very expensive. plastic fulminator. This is where the discovery of the University of Cambridge comes into play. What they have developed is a solar-powered reactor that uses a very special ingredient: car battery acid. This component breaks the structural chains of the polymers into more basic chemical blocks and, therefore, easier to assimilate, such as ethylene glycol. Once the new material is obtained, a very special photocatalyst is what allows it to be converted into hydrogen and acetic acid, putting an end to that ‘rebellious’ plastic. By fluke. The team of researchers comments that the discovery was practically an accident since they knew that battery acid could be used for the process, but it was not convenient because, just as it melts plastics, it ‘eats’ the catalysts. Theirs, however, held out, and it turns out to be cheap and scalable. It is a photocatalyst composed of carbon nitride functionalized with cyanamide and integrated with molybdenum disulfide promoted with cobalt. Lots of text to say that it is a hybrid material specifically designed to remain stable in a strongly acidic environment. According to the team, it is economical and solves two problems at once: it dissolves difficult plastics and reuses battery acid that usually ends up as waste after extracting its lead content for resale. Future. In the tests, the team points out that the system has worked for more than 260 hours without losing performance and works with the aforementioned plastics, but also with that of the plastic bottles They are also not particularly easy to deal with. They claim that their discovery offers a potential cost reduction in recycling tasks because, in addition, reusable hydrogen is produced in the process. The key here is finding a way to collect the battery acid before it is neutralized for uninterrupted use to break down plastics. The team comments that they do not promise to solve the problem, but they demonstrate how waste can become a resource. new life. This approach approaches the problem from the angle of decomposition, but there are other proposals to give these plastics a second life. Because ‘melting’ them may be expensive, but if they are put into presses they can be turned directly into bricks or paving stones for the streets. This is what Nzambi Matee proposes, a Kenyan materials engineer who has proposed convert that waste into construction material. Like the University of Cambridge experiment, it addresses two problems at the same time: recycling and creating necessary non-polluting construction elements, and this idea is catching on because the authorities have given the green light to use this 2.0 brick to pave the streets of Nairobi. Returning to battery acid, the business arm of the University of Cambridge is looking to commercialize the company, but now the most complicated thing remains: making it a standard. Images | Cambridge University (Beverly Low) In Xataka | The big problem with nuclear energy has always been its waste. Russia can now recycle them up to five times

Now there are solar panels and 50% more inhabitants

Crossing the interior of the Iberian Peninsula today is getting used to a landscape increasingly dominated by immense plains of glass and silicon. The proliferation of macro photovoltaic parks in the so-called “emptied Spain” is usually accompanied by a bitter and repetitive narrative: towns that give up their lands to large companies in exchange for a mirage that does not stop the rural exodus. However, what happens in Belinchón (Cuenca) completely breaks this script. A demographic jump of 50%. For a municipality in the interior of the peninsula, Belinchón’s figures border on science fiction. According to INE datathe town hit rock bottom in 2017 with just 314 inhabitants. Today, in 2026, the population exceeds 470 residents. It is an increase of practically 50% in less than a decade. This “boom” has an economic explanation. The municipality has given up 1,200 of its 8,000 hectares to install a 600 MW photovoltaic hub, divided into 12 plants. This immense infrastructure has allowed the City Council to multiply its budget by 30, going from a survival economy to managing three million euros annually. The philosophy behind this resurgence is summarized by the mayor in his interview with The World: “We don’t want to tell people to come live in Belinchón; we are trying to make a Belinchón so that people want to come.” The local welfare state. The case of this Cuenca town serves to dispel some widespread myths. As the analyst Alejandro Diego Rosell reflects in your LinkedIn accountthere is a popular belief that “photovoltaics fills land with panels, but leaves no wealth or local employment.” Rosell uses precisely the example of Belinchón to demonstrate that, although long-term maintenance does not generate thousands of jobs, the immense tax revenues for municipal coffers radically transform the lives of residents for decades. With this three million budget, the City Council has woven an enviable welfare network. As detailed The World200,000 euros per year are allocated to direct social aid: 1,500 euros per student, a baby check of 1,500 euros, 500 euros for glasses, 2,000 for dental expenses, in addition to subsidies to improve the accessibility of housing and support for local businesses. All this, keeping taxes to a minimum. Even at the infrastructure level, the construction of the modern Center of Light and Knowledge and a state-of-the-art gym stands out. The next step. Belinchón does not stop at renting its lands; Now it wants the energy to directly impact the electricity bills of its inhabitants. According to PV Magazinethe City Council put out to tender the “Municipal Solar Self-Consumption Project” at the beginning of the year. It is a 600 kW installation structured in six blocks, equipped with cutting-edge technology (Trina modules and Huawei inverters), with an estimated value of almost 600,000 euros. As detailed Renewable Energiesthis new plant will allow residents to benefit from a very significant reduction in their electricity bill, which will range between 70% and 80%. But the great challenge for the future, as López Castejón confesses to The Worldis to attract industry. “Closing the circle is generating electricity, storing it and consuming it with electro-intensive industry,” he says. The town demands that the companies that are going to consume that energy settle on the adjacent lands to generate, now, hundreds of permanent jobs. “Nobody opens a restaurant if there are no customers,” says the mayor. The global impact. To understand the magnitude of what is happening in Belinchón, we must look beyond its borders. The solar plants in this Cuenca municipality are playing a key role in the international green economy. According to ANDl Economistthe company Zelestra has recently launched the Belinchón I, II and III projects (162 MW in total). Production is supported by the program Energize (managed by Schneider Electric), which means that Belinchón’s sun is serving to directly decarbonize global giants in the pharmaceutical industry, such as Takeda, Teva or UCB. The right to dream in emptied Spain. Beyond the megawatts, the tons of CO2 avoided and the millions of euros, Belinchón’s main achievement is intangible. As illustrated by the report The Worldphotovoltaics have given back to the people “the ability to dream.” Mayor López Castejón once again lets his vocation emerge to explain his long-term vision. “As we firefighters say, every big fire has a small beginning,” he says. In the case of Belinchón, that small spark has been the sun, and it has served to ignite a future that, just a few years ago, seemed completely off. Image | Antalexion Xataka | We used only a third of sunlight: now we know how to use molybdenum to squeeze each photon to the maximum

The industry does not stop raising the price of games and I have gotten hooked on this free movie guessing game

There’s something perversely satisfying about spending weeks thinking more about Al Pacino movies because of one game than any recent AAA release. This movie guessing game has no cutscenes spectacular nor does it come with an ambitious built-in trailer. This is a free website, without invasive advertising, that makes you chain movies with an unknown rival from the other side of the world. Is called ‘Cine2Nerdle‘, and its Battle 2.0 mode is, right now, the hardest thing for me to leave in the browser. How to play. The daily puzzle puts you in front of a grid of 4×4 tiles. Each card contains a word or phrase. The objective is to rearrange them by exchanging positions until each row or column alludes to or describes a movie. There are between four and five movies hidden on each board. When you have three tiles of the same movie lined up, they light up yellow; when you complete all four, the row is resolved. And when you have four horizontally you have to reorganize in search of the fifth. All with limited movements, of course. What makes Cine2Nerdle genuinely interesting in its single-player mode is its constant cheating. A card can belong to a row because it is the place where a movie takes place, and simultaneously to a column because it is the last name of the leading actor in another. This game of polysemy also affects false paths; A proper name can have multiple owners, an initial can be a title or the name of a character. Each puzzle is more like a crossword puzzle than a logic test. Its secret: Battle Mode. The daily puzzle is already good enough, but what makes ‘Cine2Nerdle’ a diabolical invention is the Battle mode, and more specifically its second version. The basic idea is a 1vs1 duel in real time: both players start from an initial film and have 25 seconds, taking turns to chain together others that share at least one member of the artistic team: actor, director, screenwriter, director of photography. And so on until someone is left without an answer or runs out of time. What Battle 2.0 added over the previous version is a layer of strategy that transforms the game. Before, games could last about an hour if both players knew cinema well. Now each player carries a “battle kit” that includes items as a condition for immediate victory (for example, mentioning four science fiction films from the eighties or connecting films with an actor without using him as a direct connector), life savers (small helps, such as revealing facts about the films) and the possibility of banning films or actors to the rival. Thus the games are resolved in about five minutes. The good thing: before each game you prepare the kit of aids and objectives that you have gained while playing, and thus you can make up for your film-loving shortcomings. Pure RPG mechanics. The strategy. You have to use the aspects in which you are strong and have knowledge to drag the rival there. For example: are you an expert in horror films from the eighties? Mention long career directors who take the game from the present, where everyone knows titles, to decades past (e.g. John Carpenter). Take the game to your territory, and there, begin to uncover increasingly rare films, and reinforce your choices with prohibitions on using the best-known actors in the cast. The remains of ‘Wordle’. When the New York Times bought ‘Wordle’ for more than a million dollars By early 2022, the game already had millions of daily users. The formula was simple: one word per day, shareable on networks, without unnecessary additives. What followed was an avalanche of thematic derivatives: geography (Worldle), music (Heardle), mathematics (Nerdle)… Most did not survive a year. Cine2Nerdle He is one of the survivors. It was created by Nilanth Yogadasan, who had already published CineNerdle (a puzzle of film frames that were revealed little by little). The jump to “2” completely changed the mechanics and also, as its creator recognizesis a nod to the style of titles like ‘2 Fast 2 Furious’: the sequel that puts the number in the middle. The kind of winks for coffee lovers that turn a game for film nerds into an accessible and fun experience. In Xataka | The Spanish Puzzle Championship exists, real professionals participate and there are prizes of up to 1,000 euros

More and more Spanish bars refuse to let you pay at the table. Its objective is very simple: greater rotation

“To pay, at the cashier.” It doesn’t matter if you live in the very center of Madrid, the most touristy area of ​​Barcelona, ​​next to Malagueta, in Vigo or a remote town in Bierzo, it is most likely that at some point in the last few months you have heard that phrase when you ask a waiter to please charge you. To pay for the coffee you just had, you must get up and go to the checkout yourself. Or what is the same, you do not have the option of being charged at the table. It seems like a minor issue, but this decision is not accidental: it responds to a logic that seeks to speed up the rotation in the premises and get the most out of them. “Excuse me, can I have the bill?” In Spain there are some 87,000 restaurants and food stalls, almost 163,400 drinking establishments and 270,200 “food and beverage services”, according to INE datawhich gives a pretty clear idea about how we live in Spain: we like (a lot) to go out for coffees, beers and tapas. Therefore, no matter what region you live in, chances are that in recent months you have sat at a table in a bar or restaurant. And that’s also why you’ve probably noticed that it’s becoming more and more common that when you want to pay and ask for the bill, answer the same: “To pay, at the cashier.” Unraveling the mystery. The question is obvious. Why the hell are they asking us to pay at the cashier? Are we not hindering the passage of other customers like this? Does it have any advantages over the option of paying the bill directly at the table? The mystery was cleared up a few months ago Jairosanbor, a tiktoker that usually publishes on his account videos related to the world of hospitality. And the answer is quite simple: although several factors come into play, everything is limited to a simple question of rotation in the premises. In other words, make a business profitable and get the most out of it. Time and agility. The logic is simple. If the customer receives the bill at their table, pays and the waiter charges them, even having to return to the bar to get change, a process is lengthened that could be simplified if the payment is made at the cashier. It may be a matter of minutes, but over the course of an entire day, a week, a month or a year (even more) that time can translate into higher turnover. More rotation. More clients. Higher income. “A little trick”. “What you get is that the customer gets up without any problem and leaves you the table free so that someone else can automatically sit down. If you had him here waiting for you to bring him the bill, charge him, he leaves and comes, in the end more time is wasted,” comments Jairposanbor in his TikTok video, of just 30 sure. “It’s a little trick for the rotation.” Personnel issue? The “little trick”, as the hotelier defines it, may seem simple, but it has given rise to a good number of articles about the themein the pressand some debate in the comments of the video. There are those who relate it, for example, to the greater or lesser availability of waiters in the establishment. “Another trick: add more staff and if the customer leaves happy that they don’t have to wait, they’ll probably come back,” comment a user. Another adds that charging cash may increase turnover and profitability of the establishment, but it can have a negative effect: it places more workload on the employee behind the bar. Cash vs card. They would come into play more keys. For example, although it is increasingly common for restaurants or cafes to allow payment by card, especially in large chains, in those cases in which the business only accepts cash, the “collection at the counter” rule simplifies the process quite a bit. No picking up cashround trips between the bar and the table to look for change or for the money to ultimately pass through several hands within the business. Useful, not infallible. Of course the tactic can be useful, but it is by no means infallible. First because, as some users also comment on TikTok, there are customers who do not like being sent to the bar to pay for their drinks. Second, because rotation is not 100% guaranteed either. As another remembers tiktokerthe trick fails when there is more than one person at the table, only one gets up to pay and then returns to his seat to continue chatting. A sector in change. César Sánchez-Ballesterospresident of the Tourism and Hospitality Federation of the province of Pontevedra, Feproturprovides some extra keys. Tricks like the one shared by Jairoposanbor seek greater optimization, but that is not the only way that hoteliers follow to achieve it. For years the group has opted for new strategies, such as online reservations, letters with QR codeapps that allow you to make orders and pay… Until reaching extreme examples such as experiments of McDonald’s in the US, with stores where there is hardly any interaction with staff. Of orders, payments… and personnel. “We see more and more examples of optimization,” comments Sánchez-Ballesteros, who remembers in any case that the client always has the last word, as has been made clear in the comments of TikTok: he is the one who decides what compensates him, what practices he considers good, what bothers him or the services he is not willing to give up. Against this backdrop, there is another factor that conditions work in restaurants and bars: the shortage of qualified personnel, which further reinforces the urgency that businesses have when it comes to polishing internal processes. It’s nothing new. For years the hospitality industry has been pointing out on a recurring basis the shortage of professionals, a deficit that becomes especially visible in times of … Read more

take advantage of one of the largest sources of renewable energy

The energy wave drive It has a great advantage over other more popular renewable energy sources, such as the sun or wind: it never rests. Waves are an almost continuous and enormously energetic resource. And yet, it is the ugly duckling of green energies because its unpredictable and far from constant nature turns energy extraction into a titanic task in terms of efficiency. An American startup, Panthalassa, has been testing for a while In Pacific waters, a prototype that rethinks from the ground up how to relate to the ocean: instead of resisting it, it follows the flow. The invention. He Ocean-2 It is a device that at first glance looks like a giant buoy. In fact, in tests in Puget Sound, Washington, several people reported an unidentified floating object. The spherical part of the end (the node) has almost 10 meters in diameter and is mounted on a tubular hull approximately 60 meters long (which is submerged under the sea). But the analogy with the buoy is accurate in that it is a simple structure that sways with the waves. When it is horizontal it moves and when it is vertical (when it looks like a buoy) it starts working. Why it is important. Because the oceans They cover 71% of the Earth and its energy has an advantage that solar and wind power lack: consistency. The ocean generates energy regardless of whether it is day or night, even if it is calm or the sky is cloudy, which makes this energy source the ideal complement to stabilize networks. The endemic problem of this technology is its low efficiency. If this prototype can be scaled, it could become an alternative and complement to clean and independent energy for coastal areas. Context. In the midst of the race for AI and data centers, the great bottleneck of the United States is the energyso much so that they are dusting off old energy solutions as fossil power plants and resurrecting its nuclear industry. Of course, and although his role in the US, Israel and Iran war is different from Europe and so is its access to oil, the reality is that the price of a barrel being uncontrolled does not benefit them either. In that scenario, it is expanding your investment in renewables. Wave energy has been promising and disappointing for decades. Salt, corrosion, biological growth on structures, and the brutal cost of offshore maintenance have literally and figuratively sunk dozens of projects around the world. The result: almost everything has remained in the pilot phase. Nor has efficiency ever been anything to write home about. And while wave power has stagnated, the price of solar and wind has fallen so rapidly that it has left other clean energies without a competitive advantage. However, wave energy faces another opportunity: Ocean Energy Europe figure The portfolio of planned deployments until 2030 is at 165 MW and the United States has invested $591 million in ocean energy in the last five years. How much energy it produces and uses. In the test he managed to generate up to 50 kW in decent wave conditions, enough to power a small coastal town. However, its priority application is not the domestic electrical network, but something more specific such as clean fuels and computing: producing green hydrogen that is transported to shore in autonomous ships, and powering data centers in the ocean. How they do it. The design of the Ocean-2 has a more philosophical than technical point: it is not so much about resisting the ocean but about accompanying it. As the waves oscillate, water is propelled through an internal pipe to the spherical surface and then descends through turbines to generate power. It has hardly any moving partsbeyond the turbine, integrated into the steel structure The buoy does not have nets or elements that can trap marine fauna, it operates silently and with slow movements: Panthalassa’s environmental manager, Dr. Liam Chen, explained for local TV KOMO that its soft, low-impact design allows you to “live in harmony with the ocean.” Testing in Puget Sound showed no visible alterations to the surrounding marine ecosystem. According to the co-founderGarth Sheldon-Coulson, these machines can be made for around $1,500 per kilowatt. What comes next. As account its co-founder, have been working for about ten years: the first four or five years was only R&D, in 2021 they launched their predecessor the Ocean-1, in 2024 the Ocean-2 was released and the Ocean-3 is already in development and It is making steady progress in its financing. Yes, but. So far, everything is testing and prototypes because the project is in the experimental phase, that is, there is not a single commercial kilowatt generated, nor a connected network, nor long-term durability data. And the sea is not exactly an easy environment: knowing how it will withstand storms and the passage of time, what maintenance will be like or simply something as basic as the transfer of energy from the device to the network is essential. Without forgetting the cost, especially given the collapse in the costs of solar or wind energy, both technologies that are already mature, consolidated and very cheap. In Xataka | With oil skyrocketing, Japan has resurrected an old idea to extract infinite energy from the ocean In Xataka | Something is happening in the oceans for which we have no convincing explanation: the waves are disappearing Cover | Panthalassa and Matt Paul Catalano

The Coca-Cola recipe seemed untouchable. Until Europe first and Mexico later have decided to touch it

For decades, the Coca-Cola recipe has been treated almost like a state secret, guarded in a vault in Atlanta and protected by an aura of mystery. However, in the real world, governments have discovered that they do not need to infiltrate that vault to alter the world’s most famous drink, but can do so through legislative texts. Modifying, for example, the fiscal or regulatory framework can push any company to change its composition, its prices or its supply. The case of Mexico. Without a doubt, it is one of the most solid in the world to understand how large-scale industrial change can be forced. And it is no wonder, because the driving force behind this change was not a direct order to rewrite the formula, but rather the entry into force of a new tax on sugary drinks. in 2014. Here the effect it had was commented on by different studies which showed that, one year after the tax, purchases of sugary drinks fell by 6%, while purchases of water they rose 4%. He had an answer. The fiscal scenario and the drop in sales logically generated strong pressure for the company to change its ingredients, causing great pressure on the mix of the company’s sweeteners. This opened an intense debate about the use of cane sugar versus high fructose corn syrup, and now the national government has put on the table the possibility of forcing Coca-Cola to stop using imported corn syrup and transition towards national cane sugar by selling it much cheaper. In Europe. While Mexico uses fiscal pressure on consumption, the European Union is the perfect example of structural market regulation. And for those who have traveled to North America, you will have realized that the taste of Coca-Cola is different from what is drunk here in Europe. And a very important bureaucratic tangle is also to blame. The culprit was none other than the strong intervention that the sugar market had in the European Union for 50 years through a complex quota system that came to an end on September 30, 2017. Its consequences. Here European regulations historically limited the production of isoglucose, which is the European equivalent of American corn syrup, through strict quotas. This structural restriction forced its use in the soft drink industry to be much more contained than in the United States. Although the European Commission continued to manage certain quantitative limits in the final phase of this legal regime, the regulation acted as a containment dam. Furthermore, several Member States have implemented their own taxes on soft drinks, separating the strategy of “market regulation” from “public health” policies against sugar consumption. In India. To understand how far the fight between a State and the Atlanta giant can go, you have to travel to India in 1977. Here, unlike Mexico or Europe, the debate was not about cane sugar or sweeteners, but about sovereignty and corporate control due to the ‘fault’ of a currency control law that forced multinationals to dilute and reduce their foreign participation. Here Coca-Cola reacted quickly to prevent any government from controlling its operations and therefore sharing its secret formula, and that is why it decided to leave the country in 1977 before submitting and revealing the secrets it had. Images | Unsplash In Xataka | Researchers have analyzed the impact of sugary drinks on global health. They have put their hands on their heads

vertical tabs and split screen

It seemed that AI had arrived in our browsers. In fact, it seemed that the new batch of browsers with AI could change everything, but the truth is that at the moment they have not changed anything. Nor Comet, nor Atlas, nor Day They have managed to conquer us for that aspect. The integration of Gemini in Chrome or Copilot in Edge does not seem to convince us much either. They are striking options, but they remain in the background. The curious thing is that the evolution of browsers has not caught the AI ​​fever, but is gaining momentum with practical, pragmatic and almost everyday options: small details that improve usability and really add up. Vertical eyelashes to power The first of these options is an old acquaintance: the ability to organize our browser via vertical tabs instead of horizontal, it has been gaining ground among more and more users, but the curious thing is that this feature is, indeed, old. Google has just integrated the option to enjoy vertical tabs in Chrome. In fact, Opera I already had a choice of this type almost 20 years ago (if not before) with its “visual tabs”, but ended up abandoning them and in fact today it does not have that option officially although it is possible to add it through extensions. Firefox also adopted that path: it did not have them as standard, but there were those who I was experimenting with that concept. already in 2009 through extensions for this browser. Those who ended up copying and using that option were others: Microsoft Edge did it in 2021Brave in 2023for example, and Vivaldi has them too for a long time. Two of the latest to join this trend are Firefox and Chrome, which has just released this feature. but before, who had made them fashionable again? It was probably Arca browser with many striking ideas that fortunately is now inheriting his successor, Dia, who had erratic beginnings. The success of vertical tabs probably has a lot to do with the way widescreen displays (16:9, 21:9) have ended up conquering our tables. Too much horizontal space and no vertical spacewhich makes vertical tabs make more ergonomic sense than ever. In fact, what is normal in traditional browsers with tabs organized horizontally is that as we open more and more tabs, identifying them (not even with favicons) and selecting them gradually becomes more and more difficult. Vertical organization solves this in a remarkable way, and the fact that Chrome has finally adopted this option is the definitive confirmation that it is valuable to many people… and will probably end up being valuable to many more. Two better than one The second great novelty that is taking hold in the browser market is integrate split screen. Many users—me first—use two browser windows facing each other, one on each side of the screen, but now browsers offer exactly the same thing directly. He maxthon browser was probably one of the first to offer this option: it already had it integrated even before the launch of Windows 10 in 2015. Then we have seen how others have followed in its wake: it did Vivaldihe did Microsoft Edgeand later Opera also added that option. Google has also ended up catching this fever, and added the feature split screen in February 2026. The developers of the most used browser in the world recognized that this type of function “helps people multitask and get more done on the web.” It’s curious because, as we mentioned, this feature was already within our reach thanks to that feature of “Snap” and placing browser windows on both sides of the screen. However, this type of function, although popular, usually requires some familiarity with keyboard shortcuts, although operating systems have been enhancing this ability with more accessible ways to choose the distribution of advantages on the desktop. This function integrated into browsers It is especially useful on laptops or for users of smaller monitors: there, fitting multiple windows in a small space is more inconvenient, and the split screen of browsers can help. But the beauty is not only in dividing the screen: it is that you can open a link directly in the other panel without creating a new tab. The combination of this function with vertical tabs makes the browser gain integers and we can do more in the same space. And the funny thing is that these practical and simple improvements end up being more popular and used than AI functions. The latter may effectively end up “supervitamining” our browsers, but today it’s the little things that win. and it is fantastic that they do it. In Xataka | Perplexity is perfecting an art: bluffing

an Arabic document from the 17th century has confirmed its existence

If we think about characters and civilizations in African history, most of us think of the pharaohs and pyramids of Ancient Egypt and little else. However, there is much more and you don’t have to go far from that enormous continent: just to the south, following the river inland, there were powerful kingdoms with their own kings, their own cities and their own cathedrals (yes, I said cathedral). One of those kingdoms was called Makuria, and its capital was Old Dongola, a great city on the banks of the Nile that for almost a thousand years was a center of power, commerce and culture. Curiously, while Europe was living through the Middle Ages, Dongola was a prosperous Christian city that even stood up to the Arab armies that conquered North Africa. Over time it declined, became Islamized and was almost forgotten, buried under the desert. The history of the region Nubia It is almost a documentary silence. It’s not that nothing happened: it’s that almost nothing was written or what was left had not been excavated. In that darkness, a small fragment of Arabic paper recovered in a garbage dump in ancient Dongola (the north of present-day Sudan) has just marked a before and after. The discovery. The document measures just 10 × 9 centimeters, it was found in a garbage dump inside Building A.1 of the Old Dongola citadel (what has been popularly known there for centuries as the “King’s House”) and it is an administrative order issued in the name of King Qashqash. The king orders a subordinate named Khiḍr to arrange an exchange of sheep with their offspring, cotton cloth, and a headdress between several individuals. The text was written by the scribe Hamad and the research team behind the paper considers that it is probably the response to a previous letter, suggesting that there was an active epistolary network around the court. It is, simply, the king working on his task of administering, managing assets and relationships within his network of power. The first face of the King’s order. M. Rekłajtis/PCMA in Barański et al. 2026 Why is it important. The relevance of the discovery has several levels, but the most direct and immediate is to confirm the historical existence of Qashqash, of which there was previously only evidence through oral tradition, including fragments of the Kitāb al-Ṭabaqāt of Wad Ḍayfallāh. This book compiled in 1700 compiles the biographies of the most important saints and religious teachers of the Sudan, based on stories that had been transmitted orally from generation to generation. Beyond that confirmation, the discovery sheds some light on what the “Dark Ages” of Nubia were like. For centuries the image left by Leo Africanus in the 16th century predominated, describing the king of Nubia as a monarch perpetually at war. This document demonstrates the opposite: the region was politically active and its king was not on the battlefield, but rather involved in the daily management of goods and networks of reciprocal exchange, which was the central mechanism of political power in precolonial Sudan. Context. Old Dongola was the capital for centuries of the Christian kingdom of Makuriaone of the most powerful medieval African kingdoms in the Nile Valley. In the mid-14th century it ceased to be so, and the city progressively contracted until it was reduced to its citadel and its immediate surroundings. What followed is the period that historians call the Sudanese “Dark Ages”: three centuries in which Dongola was caught at a geopolitical crossroads: with pressure from the north by Ottoman Egypt, from the south by the Funj sultanate, and meanwhile its society was Islamized. It was in that delicate context that Qashqash probably reigned between the second half of the 16th century and the first years of the 17th century. one of the first rulers of that dark period that has been able to be verified. How have they done it. The PCMA research team at the University of Warsaw have combined three independent avenues to date and contextualize the document: with numismatics using Ottoman silver coins from the same stratum, radiocarbon of organic matter from the garbage dump, and cross-literary genealogy, combining the Kitāb al-Ṭabaqāt and the account of the traveler Evliya Çelebi, the documented descendants of Qashqash. The convergence of the roads has made it possible to reconstruct the limits of when his reign was. Qashqash is just the tip of the iceberg. The document is also a linguistic testimony of the first order: written in Arabic, it has grammatical irregularities and colloquial spellings that show that although it was not fully established, it was already the language used by the chancellery. In short: evidence of the gradual Arabization of Nubia, which was adopted and adapted. Another interesting point is that archaeological evidence and local oral memory confirm each other. Building A.1 has been called the “King’s House” by the inhabitants of Dongola for centuries and the descendants of Qashqash continue to live nearby. Finding the royal order precisely there is no coincidence: it is archeology validating what the community had remembered for generations. In fact, the collaboration between the research team and those who live there has been close, something they consider essential for a correct interpretation. Shedding light on the dark ages. The Qashqash order is only the first published result of a much larger corpus as the project has recovered approximately fifty Arabic paper documents in Old Dongola, including letters, legal and administrative texts, and written amulets. The first analysis points to communication networks that connected religious, administrative elites and possibly nomadic leaders of the region. A comprehensive and in-depth analysis of the set will shed some light on the political, legal and social history of pre-colonial Nubia. In Xataka | A cargo sunk in a Swiss lake 2,000 years ago confirms it: the Roman legions did not deprive themselves of anything In Xataka | A treasure hunter looted a shipwreck, did not reveal where he had kept the treasure and spent 10 years … Read more

A study has revealed the key to getting your emails answered: give the "thanks in advance"

It has all happened to us at some point: you write an important email, you send it and the only response you get is absolute silence. You review the text, the subject, the recipient, and everything seems correct. According to science, the problem with that email may be in the last two words that close the body of the email, that space that the majority fills in as a formality with a “regards” or “sincerely”, without devoting a second of reflection to it. how it should be worded an email so that don’t fall into oblivion. A study published in the Journal of Personality and Social Psychologyanalyzed hundreds of thousands of email conversations and came to conclusions strong enough to reconsider a habit that almost no one questions, but improves the chances of receiving a response. The experiment that changed everything. In 2017, Boomerang examined over 350,000 email threads extracted from mailing list archives of over twenty different online communities. The goal was to determine whether the way one says goodbye at the end of an email has any real effect on the probability of get responsesomething that until then no one had measured on that scale. The study of these data returned a resounding yes. Closings with expressions of gratitude obtained notably higher response rates than the rest of the usual formalisms, with a difference that can exceed fourteen percentage points compared to the more neutral farewell formulas. The average response rate for all the emails analyzed was 47.5%, a reference figure that allows the real impact of each type of closure to be measured. In Xataka Change Gmail or Outlook for a European alternative: step to follow and what you should take into account The formula that prevails over all others. Among all the closings studied, the farewell with a “thank you in advance” turned out to be the most effective formula, with a response rate of 65.7%. This was followed by a brief “thank you” with 63% and “thank you very much” with 57.9%. At the opposite extreme, closer farewell formulas such as “kind regards” (53.9%), “regards” (53.5%) or “regards” (52.9%) were well below. On the other hand, the “best” formula, the Anglo-Saxon equivalent of “the best”, recorded the worst data of all those analyzed, with 51.2%. The logic behind the most successful terms is simple: writing “thank you in advance” thanks the recipient in advance for a response that has not yet occurred, which creates an implicit expectation of commitment that the recipient tends to fulfill. It’s not a fancy psychological trick, but rather a signal of advance politeness that, according to the data, serves as a consistent and measurable hook. In Xataka The key to being more productive is not doing more things: it is identifying where you are wasting your time The science that explains the phenomenon. The results published by Boomerang match the investigations previous studies conducted by behavioral psychologists Adam M. Grant (Wharton School) and Francesca Gino (Harvard Business School). Their study showed that the expressions of gratitude They directly motivate prosocial behavior, that is, people’s willingness to help. University students who participated in that experiment who received a message with an expression of gratitude closing the email were twice as likely to offer their help as those who received the same message without it. The researchers concluded that the key mechanism is not the recipient’s self-esteem or emotional state, but rather the feeling of feeling socially valued. Apparently, those two formulas that seemed like mere courtesy, activate that spring. {“videoId”:”x86bhjh”,”autoplay”:false,”title”:”17 TRICKS and FUNCTIONS WITH GMAIL GET THE MOST OF YOUR ACCOUNT”, “tag”:””, “duration”:”593″} The numbers that justify the change. When Boomerang directly compared the emails with these thank-you closings to the rest, the difference was even clearer. Messages with some variant of thanks at the end achieved a response rate of 62%, compared to the 46% average offered by emails that did not include it, which represents a relative increase of 36% in the average response rate. It is worth keeping in mind, however, that the analysis itself warns of its limitations and conditions. The sample comes mainly from communities linked to open source software and academic environments, so it may not reflect all professional or social contexts. Even so, the fact that these closures generated a greater tendency to respond confirms that the choice of the appropriate closure is not a minor detail, but a variable. with proven weight. In Xataka | European alternatives to Gmail and Outlook: the best email providers made in Europe Image | Unsplash (Stephen Phillips) (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 study has revealed the key to getting your emails answered: saying “thank you in advance” was originally published in Xataka by Ruben Andres .

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