Mobile Tech & Gadgets

In the fierce war for augmented reality, China has five “dragons” willing to win it

by

I’ve been observing from the barrier how the career of The augmented reality. And, I must be Franco: so far no one had taken it seriously, not even Apple. Vision Pro It is a brilliant product, but niche. Very niche. Google herself renocated in her most important event of the year, the I/or 2025 which believes to recognize as a key to democratize access to this product category. “We know that glasses can only be really useful if you want to wear them all day.” And Android XR arrived Android XR marks a before and after. It is the first real effort to create an accessible mass platform for every manufacturer that bets on augmented or mixed reality glasses. What seemed An initial project in conjunction with Samsung To develop a VR helmet, it has ended up materializing in a paradisiacal garden on which any manufacturer can walk. This operating system will play a fundamental role in the popularization of A format with great sale potential: Traditional glasses with augmented reality. A platform through which users can use (naturally) apps such as Google Maps, photos and, the most important, Gemini, on reduced size devices. Google is not winning only the race when developing an open platform that gives life to a product that free us (at least partially) of the smartphone, is also leading Who offers the best assistant driven by AI. The Gemini native integration In augmented reality glasses it makes even more sense than a mobile. The voice command becomes almost an essential when the physical interaction with the device is minimized. It is, in fact, Google’s goal. Free ourselves from the smartphone in daily tasks How to call, follow addresses towards some point or something as simple as adding a reminder to the calendar. The friction is minimized to remove the mobile from the pocket for any of these purposes. Glasses, voice command, effective execution. THE BATTLE FOR PRICE AND FORMAT Vision Pro or even Quest target are born as niche products. Apple sells mixed reality at almost 4,000 dollars (taxes included), with results below analysts’ predictions. About 175,000 units sold in a year. Goal has been Selling the Oculus Quest as hot breadwith an accumulated of 20 million units. Perhaps the quality-price has something to do. So much that Apple considers to focus efforts on more economical vision. “We know that glasses can only be really useful if you wanttake them all day. “ Virtual reality has its niche, But the augmented opens to products mainstream (glasses that you can wear almost all day), a formula that starts working. Not satisfied with Meta Quest figures, the company started four years ago an incursion into the world of traditional format glasses next to Ray-Ban. First with Ray-Ban Storiesand Three years later with Ray-Ban Meta. A new product, a “new” format, and One million sales in their first year of life. The “traditional glasses with headphones and things” works. But the goal is missing a platform adapted to this format and less limited hardware (these glasses can barely record some video, receive notifications and call). And there China comes into play China has been engaged in a career to lead the technologies necessary to create traditional format glasses with augmented reality. And there are five big names in it: XREAL Rayneo Rokid Immobile Meizu It is curious how, beyond giants like Huawei (whose platform Harmonyos does not currently prioritize AR devices) innovation in this territory is in the hands of small businesses. XREAL It is a start-up that already works in some Badge glasses Under the Android XR platform. It will be a product to take into account and relevant to China, since Most hardware is produced nationwide (currently 65%, with the aim of reaching 100% on a two -year horizon). Instead of betting on Qualcomm technologies, Xreal has its own chip for glasses, the X1. Rayneo It may sound more, and it is a subsidiary of the Chinese giant TCL. He is working with Alibaba to take AI models to smart glasses and, for the 2028 Olympic Games, they plan collaborate with COI to create promotional videos in which the perspective of athletes (which will wear scratch glasses) is the protagonist. A look at your website It lets us see that they are focused on markets beyond the Chinese, with the focus currently on the projection of content. Rokid It is founded by an ex-alibaba, and manufactures glasses that use the QWAN model (precisely Alibaba) to translate into real time. It has enough state support, and works with national companies. Although it has a consumer product, it is quite focused on specific solutions. Immobile He is one of China Mobile’s main collaborators in his attempt to develop one of the great national language models. Jiutian LLMone of the first models, and is being tested in the glasses of augmented reality of immobile. Their abilities are multimodal (voice, text, compression of what you are seeing), and the connection is direct by 5G to the cloud of China Mobile, without the mobile as an intermediary. Finally we have Meizua historic Chinese manufacturer who tried in Spain with its mobiles but could not with Huawei and Xiaomi. The company has developed Llm Flyme a multimodal AI engine that vertebra both its XR devices and its connected car systems. They also combine text, voice and visual recognition, integrated in recent launch glasses, such as their Starv Air 2. A company recently acquired by the Geely engine giant, with expansion plans outside China. The keys to winning this format race Although Google has put the platform on the table and has set your hand to companies that want to collaborate with it, this It is still a war to dispute And in which there are still no proposals for attack to the generalist public, beyond the first goal approach with Rayban … with glasses that do not even execute augmented reality. Google has important strategic advantages: its Android ecosystem is unbeatable … Read more

Its technology aims to reduce the scope of the enemy sound

by

In the underwater world, noise can be a sentence. The more silent a submersible, the lower the probability that it is detected by sounding. Although artificial intelligence begins to change the rules of the gameefforts to further reduce the acoustic firm do not cease. As SCMP points outthe last advance arrives from China, where a team of researchers has developed a technology that, in laboratory conditions, has managed to significantly cut the vibration that is transmitted from the engine to the helmet. The idea starts from replacing the traditional engine rigid supports with a hybrid structure of active-peasive insulation. The system was presented at A study reviewed by pairs published in Noise and vibration control By researchers from Jiao Tong University in Shanghai, in collaboration with China State Shipbuilding Corporation (CSSC). According to the authors themselves, a reduction of only 10 decibels at the noise level of a underwater vehicle could decrease its 32%detection range. A double control system. The system combines two elements. On the one hand, a steel-gum-steel ring that acts as a passive shock absorber. On the other, a series of 12 piezoelectric actuators that surround the engine and neutralize micromovimientos with the help of precision levers. These actuators are designed to adapt to reduced assembly space. The combination allows to reduce both structural vibrations and low frequency sounds, the most problematic for stealth. The system is governed by an FX-LMS algorithm, an adaptive method that coordinates the 12 actuators and avoids interference between them. Thanks to this intelligent management, the system can adjust your response in real time, which allows you to maintain control even in the face of unexpected variations in engine behavior. The method is based on rebuilding the interfering signal to feed the noise cancellation. Promising results, but in laboratory. The tests were performed with a 200 kg simulated engine mounted on a cylindrical metal housing. The system was designed to operate with a regime of 1,500 revolutions per minute (25 Hz). At 100 Hz, the passive system managed to reduce noise by 12 dB. With the complete system, the attenuation reached 24 dB. At 400 Hz, the reduction was 26 dB. The researchers explain that the chosen frequencies correspond to the most common spectral lines of the engine. A development still with questions. The study also indicates limitations. The rigidity of the rubber used in the passive system can be affected by temperature and pressure variations, and the durability of piezoelectric actuators has not yet been verified in real operating conditions. In addition, researchers do not specify what type of underwater would use this technology or the final impact that it would have on its global acoustic profile. In fact, the term “underwater vehicle” is used throughout the study. That is, they do not speak of diesel-electrical submarines or nuclear submarines. For now, it is an experimental development with promising results. The participation of CSSC suggests strategic interest, but there is no confirmation that this system has been integrated into any operational platform. What demonstrates is that China continues to bet on advanced technologies to reinforce its underwater stealth, an important factor in the modern naval war. Images | TOOK-RANCH (Wikimedia Commons) | Jiao Tong University In Xataka | The war in Ukraine had a red line of 70 kilometers. West has just eliminated it after Russia’s last attack

There are no diesel motorcycles for a very long list of reasons. This American brand doesn’t care about a single of them

by

Motorcycles are not gasoline by whim. They are because diesel engines are unfeasible For the very nature of the behavior of a motorcycle, although there are those who have determined to resurrect a concept that, every time it has tried, has not managed to go beyond the anecdote. Why my motorcycle is gasoline. There is a very long list for motorcycles to bet on gasoline and not by diesel: the first is that they are designed to have a relatively content size and weight that allows them to be driven. Diesel engines are heavier that gasoline engines due to their compression ratio (burn with much more pressure and inevitably need more resistant and heavy materials). They also work in a very low range of revolutions, ideal to minimize consumption, but with much less response for a vehicle born to be agile and sportsto a greater or lesser extent. An industry that seeks to be profitable. They are also more complex to manufacture and maintainan especially important cocktail in an industry that sells much less than that of the car and operates in reduced volumes. In short, the motorcycle industry has focused on gasoline engines Because of its ease to extract power in low displacement, the advantage in weight-power relation, and the finely important performance in a vehicle in which, literally, we have the engine under the legs. Diesel attempts. Attempts to create a diesel motorcycle are over a hundred years old. Already in 1904, Holland created a diesel engine with a single cylinder, 2 hp of power and turned to 700 rpm. It was basically a bicycle with the support of a small engine Since then, there have been multiple attempts to make the diesel motorcycle profitable. The giant Royal Enfield He was one of them, with his 350cc diesel bullet. The conclusion they obtained was clear: “Although the sales of our gasoline motorcycles grow with the market, diesel have not followed the pace. It was a niche product. Now I don’t think we continue with the motorcycle” They are, everything is said. Axiom diesel cycles wants to try again. Matthew Lach, creator of AXIOM DIESEL CYCLEShe continues to believe in the dream of diesel motorcycles, and has materialized his own concept. Your company has been manufacturing custom motorcycles with this type of engines since 2019. Real, for street and perfectly accessible … for anyone who wants to pay them. And it is that the price of one of their custom diesel has a price that is around $ 50,000. There is not a single motorcycle in the generalist market that is around this figure, not even the supercar or The most enviable market trail. What you take. Far from offering a competitive engine in features regarding Its Custom Competitorsthe vision of this company is particular. It offers a three -cylinder engine, a thousand cubic centimeters and … 24cv of power. Exclusivity, an aesthetic achieved and, what noses, a diesel engine, is what this manufacturer offers that, for the moment, only sells in the United States. Image | AXIOM DIESEL CYCLES In Xataka | A hybrid engine that works with diesel and hydrogen. There are those who believe it is the future to clean heavy transportation

The authentic battle will be fought by ia agents

by

The dispute over world supremacy that maintains US and China It permeates everything. The global economy, the most developed defense strategy, the commercial relationship between powers … and technology has an absolutely protagonist role in The delicate current geostrategic situation. Semiconductors and models of artificial intelligence (AI) are the resources used by the two countries with the greatest influence of the planet to measure its strength, and it is understandable that it is so. The range of applications in which the avant -garde and advanced AIs are crucial to guarantee the development of a country is very wide. Its scientific capacity, its industrial development, its economic competitiveness or its military power depend largely on these two resources. However, AIs are supported by semiconductors. Without integrated circuits of high density, high performance and high efficiency it is impossible to implement a really capable AI model. This is the reason why the US government is doing everything in your hand to prevent GPUs for avant -garde that design Nvidia, AMD, Intel or brains, among other companies, reach China. But for the moment the country led by Xi Jinping is resisting the pressure. Jensen Huang, the general director of Nvidia, has declared A few days ago, China is not behind in front of the US in AI. And the solvency of Deepseek, Ernie, Qwen, Pangu, Hunyuan or Sensenova endorses its analysis. The greatest growth potential is the AI ​​agents Right now it is very difficult to determine in an objective way which country leads in AI. It is reasonable to conclude that the US is ahead of China if we stick to the joint capacity and performance of its AI models, but the really relevant thing is to determine if that capacity entails a real value. This is The line of thought that defends experts As Arthur Lai, Chief of Research for Asia of the Macquarie Financial conglomerate, or Jason Corso, professor of AI at the University of Michigan (USA). The metrics that are currently used to evaluate the abilities and performance of the most advanced AI models are less and less clarifying In addition, it is important that we do not overlook that the metrics that are currently used to evaluate the abilities and performance of the most advanced AI models are less and less clarifying. And is that as The models improve and develop Its global competitiveness is equalized. During The Google I/O event last week the spokesmen of this American company said that Gemini is the fastest AI in the world because it reaches a speed of generation of Tokens ten times taller than Deepseek. An note before moving forward: the generation speed of Tokens It measures the speed with which a model of AI generates the answers, but it is only an indicator of the many that is necessary to use to evaluate the ability of an AI. Alibaba, on the other hand, assures that his last family of Qwen models surpasses his rivals if we stick to the ability with which he addresses mathematical reasoning or application programming. In this context, the most reasonable conclusion we can get is that each company affects those indicators that favor it. However, for users, the really important thing is the real value that an AI gives us. AND According to Lai, Corso and other experts The greatest growth potential has it AI agents and not so much the great language models themselves. An agent is an AI program that has been designed to make decisions for himself and behave in an autonomous way with the purpose of achieving a goal. The most important difference between an AI model and an AI agent is that the latter does not need us to tell him at every moment what he should do; Plan, analyze and execute tasks for yourself. This is the battlefield in which the companies that are dedicated to AI will compete, if they are not doing so. Image | Beyzaa Yurtkuran More information | Nikkei Asia In Xataka | The US wants to end the chips for the Chinese that are sold abroad. And China knows how to defend oneself

From 0 to 252 km/h at 6,0542 seconds. It is not magic, it is a motorcycle that works with water

by

When one looks for the benefits of a motorcycle or a car, it is usual to meet the term “Mile room”. In Spain we are perhaps more familiar with the figure from 0 to 100 km/ho how long it takes to travel a kilometer from standing. However, the mile room, those 402 meters is the usual measure that is taken as a finish line in the Drag Races. Yes, the Acceleration races So famous in the United States in which we see artifacts of all kinds to launch from standing at impossible speeds and, in some cases, let out a parachute once the finish line has passed. As with cars, in the world of motorcycling it is also competed in these particular races. The most striking use modified motorcycles that, such as You can see in this videothey have a huge distance between wheel and wheel and gigantic tires. The objective: maximum traction and aerodynamics to achieve the highest speed in the shortest possible time. If this does not seem striking enough, you still have to meet Graham Sykes, a pilot who has managed to cover the 402 meters of the mile room in six seconds reaching a tip of 252 km/h. Figures that become difficult to assimilate and impossible to believe for a steam motorcycle. That? At 252 km/h with water as fuel “We did the first 18 meters in 0.73 seconds, 100 meters in 1.99, 201 meters at 3.2 and 402 meters in 6.05” With these words, as the one who describes the figures pointed on an excelll sheet, Graham Sykes had his experience aboard the “Force of Nature”the faster steam motorcycle ever built, they collect in Motorpasion motorcycle. Sykes explained at the end of the test he had achieved beat your own record and had reached 201 meters faster than anyone aboard a steam motorcycle. The eighth mile, those just over 200 meters, is another of the usual distances in this type of racing. Although it is far from the world record on a motorcycle Dragster (less than five seconds and 469 km/h of peak speed) the merit is double because it is built in the house garage only for exhibition purposes. And warns: “We are very close to running the 402 meters in five seconds. We really want to finish the great engine at the end of this year, with 120 liters of water and three seconds of power. “Because the current motorcycle only has a water tank of 88 liters and generates its maximum power for 1.9 seconds. Yes, it’s talking about water. Because that is a steam motorcycle, right? In which it moves with water. How do you do it? They explain in Motorpasion motorcycle that the system is as simple as water, heat and pressure. To heat the water they use hydrogenated vegetable oil to produce pressure. This accumulates until being expelled by a Laval nozzle. At that time, overheated steam is in charge of throwing the motorcycle at more than 250 km/h. In fact, according to Sykes, the motorcycle can reach up to 320 km/h (once the mile room is exceeded) and is trying to increase the capacity up to 130 liters of tank and with two heating pipes Take the water up to 200ºC of temperature and generate 30 pressure bars. Objective: break the barrier of six seconds in 402 meters. Photo | CPE In Xataka | The crazy and crazy story of nuclear cars: the projects that played to be God during the twentieth century

The great AI companies have declared a underground war to a pillar of education: human teachers

by

We would all like to have a Keating Professor In our lives. One that made us get on the desks to see things from a different perspective and that he would teach us that the most important lesson he has for us is summarized in the words “Carpe Diem”. There are very few who approach that image, but all of them, bad or good, threatens them the same future as Other professions: Be replaced by an AI. Professor 24/7. The narrative of several AI companies is clear: the human teacher is a bottleneck. Each of them serves many students, their knowledge is limited and their finite availability. The AI, they assure those companies, proposes a remarkable alternative. Personalized professors 24/7 with infinite patience and access to all the knowledge of the world. There is a clear problem: that message devalues ​​the teacher’s function as a guide, mentor and catalyst for curiosity and reduces it to a mere transmitter of information. Continuous evaluations. Another of the pillars of the educational system – and one of the tasks that most consumes the teaching staff – is Student evaluation. The AI ​​promises to correct efficiently, massively and immediately, releasing the teacher for other tasks. But again in human evaluation there is much more than a mere correction of errors. The effort, the reasoning process, creativity, originality or even the personal context of the student are evaluated. Biases also pose a clear threat to these evaluations, in addition to promoting a model Based on the correct answer and not in the reflexive process. My school is OpenAi. So far schools, universities and other academic institutions are the guarantors of a theoretically coherent and quality curriculum. The approach of the companies of AI would be that of Become them In “Guardians of knowledge” deciding what is important to learn and how. The risk: lead to a fragmented education and dictated by the interests of the market, eroding the role of education as a pillar of society. Threat to humanities. The AI ​​also raises the irrelevance of memorization – it can already respond to all known knowledge – and bet on skills such as “Prompt Engineering“(know how to ask things to AI) or Technical subjects (Stem). That suggests a clear impact to matters of humanities and critical thinking that we do not apply directly. Fields such as philosophy, art or social skills, hardly quantifiable, would go to the background. The objective would not be as much to train and prepare workers for the technology industry. Goodbye to social investment. Companies that bet on that model have a clear objective: climb and be profitable. AI technology applied to education promises a lot of savings (less physical infrastructure, less teachers) and a highly scalable business. But also imposes a worrying revolution to one of the pillars of society. Bill Gates believes in the future of the teachers of AI. Among the experts who outline that idea is the figure of Bill Gates, co -founder of Microsoft. His commitment to the teachers of AI It was early: Chatgpt had been in the market for just five months when he said that “AIs will reach that capacity, to be as good tutors as any human being.” For him, this technology should also be a “leveling” for society. According to Gates “having access to a tutor is too expensive for most students, especially if that tutor adapts and remembers everything you have done and review your work.” Openai and Khan Academy have the same vision. A year ago the presentation of GPT-4O surprised among other things for that capacity offered by this AI model to talk directly to him. One of the OpenAI demos, carried out in collaboration with Khan Academyhe showed Sal Khan, his founder, contemplating how his son used the model to receive a geometry lesson. The interaction was impeccable and pointed to a future full of teachers of ia locked in our tablet, our mobile or our computer. Khan is of course interested, but it doesn’t hurt see your ted talk on “how AI could save (not destroy) education.” Schools converted into nurseries. Luis von ahn, Founder of Duolingothe poular application to learn languages, it also takes time turning towards the AI. A few days ago he participated in the podcast No priorsand there he commented how although there are very good teachers, “there are not many.” For him, education will change radically because “it is much more scalable to teach with which with teachers.” Even so pointed out That does not mean that teachers disappear: “You will continue to need people who take care of students”, but focused on a new role: “I don’t think schools disappear, because you need nurseries.” Image | Buena Vista Pictures In Xataka | Towards the end of duties: how chatgpt has been inserted in the center of the great debate on education

The best apps and services to discover which series or film, and help you discover new titles

by

We bring you a small collection of services to find new series and movies to seebecause sometimes apps suggestions are quite far from being effective. Therefore, there are other external and third -party alternatives that you can use for this. We will have everything from pages and apps that serve to vote or keep the content of the content you see and have sections of recommendations, to other services that have been specially designed to recommend what to see depending on what you like. And as we always say in Xataka Basics, these are our suggestions, but maybe you know others. Therefore, we invite you to miss any service on the list, tell us in the comments section so that all readers can benefit from the knowledge of our xatakers. Chatgpt, Gemini and the like Conventional artificial intelligence chats are the first to can help you with recommendationsboth in their payment and free versions. All you have to tell you is that you want to find free series and movies, and make recommendations. Here, it is also important give examples of titles that you likeeither generic or better that they are related to the type of series or film you want to find. Thus, they can take these tastes into account to recommend. You can also tell you the genres that you like the most. Justwatch Justwatch is a fairly popular service because you can configure what streaming services you have, and then when looking for series and movies it tells you which one is available. But it also has A system of recommendations and discoveries where to find something to see. In this section you will see recommendations based on the virality of the moment, on the searches that users do. It also has a section of novelties and another for searches many filters which includes rotating or IMDB, genres, languages, countries of origin or premiere years. So you can find the best of the best. IMDB This is one of the main series rating portals worldwide, and hundreds of thousands of users use it to put notes to series and movies. Precisely because of that, it is a place to go to know which are the best and worse ones you can see. In addition to lists with the best series and films in history according to the note of the spectators, it also has A section called What to seewhere you can meet several lists of suggestions. These can be for streaming services, at the favor of others, and even the most popular of the moment. Rotten Tomatoes It has positioned itself as the great successor of IMDB, and stands out because in its notes those of critical experts of film and the rest of the people differ, sometimes having great differences. The web also has its list of news and more viewed series or filmsas well as a page with several articles with recommendations. Taste.io This is a page in which you can calculate your cinematographic taste, and then use this calculation to Make custom recommendations. For that, the web will show you a series of films, and you will have to value them. When various values, a taste profile will be created and will show you the recommendations, also based on other data such as the streaming platforms you have. The premise of this service is that the people who will make best recommendations are those that have your same personal tastes. Therefore, once your taste profile is created, compared to other users With similar tastes to make the recommendations. Tasdive This is a fairly simple service, in which you simply write a series or movie that you like, and then I recommend similar things. In addition, in each of the product sheets you will see how many users like or do not like, as well as reviews. In addition to films and series, this service It also serves other types of entertainmentsuch as music, books, games, and even places and brands. It is not the most complete, but it is easy to use. Likewise pix Since at first we have mentioned artificial intelligence systems, there are specialized pages such as likewise that have also created your own AI to make recommendations of content You just have to enter your website and ask what type of series or movie you want to see. Viewing tracking pages There are many apps to follow and control the series and movies you seewhere you are marking and valuing each chapter or film. Among them you have Time Time, Trakt, Letterboxd either Justwatch among many others. These are services that you can use both on its websites and in mobile applications. These services offer several ways to discover content. On the one hand, You can look what your mutuals are seeing and other people you see that they have tastes related to you. In addition, apps They usually have suggestions sections where you will also find recommendations based on your tastes. Reddit Reddit is the greatest metacomunity in the world, A Community of Communities. On this website, you have many subbredits dedicated to films and series where you can find recommendations of all kinds. There are even omunities such as R/TelevisionSuggestions made exactly for this. It is worth taking a look. Use specialized pages And finally, you can also turn to The analysis and recommendations of specialized pagessuch as our partners of ESPINOF either Sensacine. From this page is where I get many suggestions from new series and films, and as it is also recommended that can also help you. In Xataka Basics | 14 apps and services to discover new music in Spotify, Apple Music and other streaming services

Coffee is more expensive than ever. Some researchers have discovered how to make it the same as rich using less coffee

by

Cocoa and coffee have experienced a Notable price increase This 2025. different Geopolitical factors, climatic and of transport They have caused the price of coffee to reach absurd limits. For some executives of coffee companies, we are immersed in one “unsustainable bubble”And it is logical that, with coffee at the point more expensive for the last 50 yearslet’s ask ourselves how to prepare the best coffee wearing fewer grains. A group of scientists already has the answer: taking advantage of the Fluid dynamics. And they have reached the same conclusion that the baristas have been promulgating for years. The problem. 2024 meant the culmination of an upward trend: the price of coffee had Uploaded almost 170% in the last decade. A Perfect storm I was promoting that the crops were more scarce in the main coffee producing countriestariffs have not helped, transport has also been sometimes interrupted and there are brands that absorbed the impact of the price increase Until they stopped doing it. Filter coffee. This price increase affects both robust variety like Arabicaand a group of researchers from the University of Pennsylvania wondered if they could make an excellent coffee wearing less grains. Arnold Mathijssen is an assistant professor at the Faculty of University Arts and Sciences and Comment That, although there are several research on fluid mechanics and many others on particles, they have joined both to see if they can enhance coffee extraction. To do this, they focused on one of the elaborations that allows the most control when making coffee: The filter. Here we can precisely establish the temperature of the water, we control how it affects coffee, the amount of grain, the milliliters of water and, With a good millwe can find the right grain thickness to optimize extraction. The perfect point. The team used high -speed cameras to measure water penetration in coffee and the truth is that it did not use techniques that the baristas did not know, but it is interesting to know how they evaluated the process. Margot Young is co -author of study And he states that, before starting directly with coffee, they used transparent silica gel particles in a glass cone (such as the classic Chemex) to see the path that follows the water. With the high -speed chamber and several sensors, they observed how small avalanches were produced inside the “coffee” bed. Little by little, water with a constant jet, the particles mixed better, improving coffee extraction by increasing contact between liquid and grains. They played with different heights, They discovered That, when the water is poured from too much height, the jet breaks into drops that drag air to the cone and the grains, reducing the efficiency of the extraction. If the coffee is poured very close, the penetration is insufficient and the contact between water and grains is reduced. The jug with the swan neck. It is also in a bull or boiler Adequate teapot. To take advantage of fluid dynamics and maximize contact between the elements, Ernest Park, co -author of the study, comments that it is essential to use a swan’s neck. They are with an elongated and curved ‘pitorro’ that allow consistent and precise jet. “If you use a conventional teapot, it is difficult to control where the flow goes,” says Park, “and if the flow is not constant, it does not penetrate enough.” In real experiments with coffee, measurements confirmed that extraction can be optimized by prolonging the spill time using slow and constant movements to take advantage of that Avalancha dynamics. If it is not done at fair speed and height, coffee will be stronger or softer because it will be above or sub -expire. Beyond coffee. It is curious that they have used measurements and physical theories to, as we say, to reach the same conclusion that the baristas have been proclaiming in books and channels like YouTube: A swan neck, slow circular movements and a medium height when preparing filter coffee is ideal to maximize extraction and be able to make a good coffee with less grains. It is interesting to see that this booklet is the one that any coffee enthusiast can have, controlling temperatures, amounts and extraction times However, the researchers comment that they did not do this for fun. Mathijssen says they had “the tools of other projects and we realized that coffee was an interesting model system to explore deepest physical principles that go beyond the kitchen.” For example, this type of fluid behavior helps to understand how water erodes the rock under waterfalls or in the dams. ” “You can start with something small, such as coffee, and end up discovering mechanisms that are important at industrial scales” – Mathijssen The importance of science. But well, beyond “I came looking for money and found gold”, it must be said that coffee and science are very close. And it is not so much a search on how to prepare the best coffee using less grains, but a way to optimize the elaborations to have the best possible drink. He MIT has a course in which students and researchers seek to prepare the perfect cup controlling all the processes and techniques to achieve it. They combine elements, play with temperatures and pressures and calculate everything millimeter to obtain knowledge that They move to Café Diario thanks to the development of better techniques, more sophisticated tools and industrial processes (such as grinding or roasted) much more precise. Images | For City, Ernest Park, James Hoffmann

The first Hermès headphones for Millionaires do not compete in technology, compete in price. For being the most expensive, of course

by

In addition to manufacturing handmade chairs, Hermès has earned her prestige of luxury craftsman for her popular (and profitable) Birkin bags. However, the exclusive Maison He has taken an unexpected step. He has tired of making covers For airpods And now it seeks to compete in the high -end technology market launching its first high -end headphones worthy of the cache of your bags. For his first foray into the technological sector, Hermès does not consider competing with The biggest As for technical benefits, but in something that the French brand dominates perfectly: its price. And not precisely because it is the most economical. Making covers for Airpods was not enough Until now, Hermès had collaborated with technological brands such as Apple, just creating leather covers For airpods and other accessories for their devices. However, the firm has decided to go a little further and manufacture its own luxury headphones, in which each unit is handed by its most experienced artisans. According to The published by Luxurylaunchesthe design and development process has been two years and each headset is the result of a thorough work, from the selection of skins to the final assembly. In fact, exclusivity is such that A few units will be producedand each of them is made on request. Touch the image to go to the original message “The idea is not to be able to replicate this 10,000 times as a great headphones manufacturer would. The idea is that the few we do are perfectly done, and that has been a very long learning process,” explains Axel de Beaufort, creative director of Ateliers Horizons. This Hermès artisan workshop based in France, has been responsible for manufacturing for the firm’s clients such unusual pieces such as canoes, disco balls and surf boards, but now faces the challenge of combining artisanal excellence with the technological requirements expected of some high -end headphonessuch as the incorporation of tactile functions to control them or Noise cancellation. The headphones are made of hand -sewn cow hunter skin, metal details inspired by their emblematic Kelly bag, as well as pads and headband coated with lamb skin. In Spain, for the moment They are only available In the color Rouge H. the 11,800 euros that cost It positions them as the most expensive in the market, even surpassing other accessories as extravagant of the brand as the fishing cane of 10,000 dollars or the Mahjong set of $ 43,000. Luxury, but high -end headphones after all Although Hermès has kept a secret many of the technical specifications, it is known that these headphones They can connect Both Bluetooth and Jack cable. In addition, it includes USB C connector and different USB C adapters and 2.5 mm jack connector. The brand promises an “intimate, faithful and envelope” auditory experience and ensures that the sound performance is at the height of the aesthetic promise, with “very high fidelity, subtle reproduction and enveloping silence”, something that we have not been able to verify. Inside they incorporate two 40 mm transducers that allow reproducing a very wide frequency range between 20 Hz and 40,000 Hz. The headphones battery offers up to 30 hours of autonomyaccording to data from the firm itself, and the materials used guarantee exceptional durability and comfort that have already been endorsed by the Hermès bags resist the passage of the passage of time. “It is not just a beautiful object, but about creating a true sound world, an exclusive auditory firm,” is indicated on its website. In Xataka | Hermés’ heir millionaire adopted his gardener. His fortune has evaporated before he reaches his garden Image | Hermes

Five offers to take advantage of the Samsung Days of El Corte Inglós in mobiles, smartwatch, monitors and more

by

The English Court has launched new Samsung Daysa brand -centered campaign with all kinds of discounts on mobiles, monitors, smartwatch and much more. Will be available until tomorrow, Sunday June 1so in this article we wanted to gather five very varied offers to take advantage of the campaign. Samsung Galaxy S25 by 871.20 eurosa high -end mobile that now has a good price in its 512 GB configuration. Samsung Galaxy Watch Ultra by 466.65 eurosa spectacular smartwatch that has a 33%discount. Samsung Galaxy Book4 by 699 eurosa pototile computer that comes with Windows 11 Home pre -installed. Samsung Odyssey G5 by 143.20 eurosa curved and gaming monitor that offers a 165 Hz refreshment rate. Samsung Evo Plus by 19.99 eurosa 256 GB microSDXC memory card. Samsung Galaxy S25 Just a few months ago that the Samsung Galaxy S25 And you can find offer with very good discounts. But this time one of the best offers is 512 GB configurationsince in the English Court its price has dropped to the 871.20 euros. He Samsung Galaxy S25 It highlights, among many other things, for its excellent screen, for the brand customization layer and for its processor Snapdragon 8 Elite for Galaxy. In addition, it is worth mentioning that you will receive updates for many years, something that we see more and more frequently in the brand. Samsung Galaxy S25 (512 GB) * Some price may have changed from the last review Samsung Galaxy Watch Ultra He Samsung Galaxy Watch Ultra It is a very expensive smartwatch, but during all this time since it was launched to stores we have been able to see very good offers. In fact, during the Samsung Days of El Corte Inglés you can buy by 466.65 euros. One of the key points of the Samsung Galaxy Watch Ultra resides in your operating system Wearos. But it is also worth mentioning that we are facing a most complete smartwatch: it has LTE connectivityincludes 32 GB of internal storage, its maximum brightness is 3,000 nits and comes with a good assortment of sensors to monitor physical activity. Samsung Galaxy Watch Ultra (LTE) * Some price may have changed from the last review Samsung Galaxy Book4 Are you looking for a good laptop? Well, in El Corte Inglés we can also find the offer the Samsung Galaxy Book4a fairly complete laptop for what it costs, especially now that during the Samsung Days of the store it has dropped to the 699 euros. He Samsung Galaxy Book4 Mount a good 15.6 -inch screen, assemble the processor Intel Core i7 1355u together with 16 GB of RAM and 1 TB of SSD. In addition, it has a fairly thin design and comes with the operating system Windows 11 Home pre -installed. Samsung Galaxy Book4 (NP750XGJ-KG4ES) * Some price may have changed from the last review Samsung Odyssey G5 During the Samsung Days of El Corte Inglés we can also find some offers in monitors of the Odyssey line. One of those who have a better value for money is the Samsung Odyssey G5which is available in two configurations: Samsung Odyssey G5 is a gaming computer with VA Curve (1,000r) screen which offers a QHD resolution of 2,560 x 1,440 pixels and a 165 Hz refreshment rate. It is compatible with the format HDR10includes technologies such as FreeSync or Eye Saver Mode and comes with Displayport 1.2 port, an HDMI port and a headphones input. Samsung Oddysey G5 (27 inches) * Some price may have changed from the last review Samsung Evo Plus Finally, we can also find a good offer on the MicroSDXC card Samsung Evo Plus of 256 GB. By 19.99 eurosWe talk about a good card with A2 classification that can be used in compatible mobiles and tablets, in drones or even in consoles. It offers a 120 Mbps writing speed and a 160 Mbps reading rate. Samsung Evo Plus (MicroSDXC, 256 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. Images | Buying, the English Court and Iván Linares (header), Samsung In Xataka | Best Samsung mobiles: which buy and recommended models based on budget, tastes and quality price In Xataka | The best smartwatch (2025): their analysis and videos are here

Log In

Forgot password?

Forgot password?

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

Your password reset link appears to be invalid or expired.

Log in

Privacy Policy

Add to Collection

No Collections

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