technology

Its technology aims to reduce the scope of the enemy sound

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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

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

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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

Here are all the degrees related to technology and science with their cutting notes

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In just a few days the University Access TestAka the Pau. It is a very marked date for the more than 300,000 students who have been preparing for at least two years to face these exams. It is not for less. Pau marks the end of one stage and the beginning of another, one that means making the leap to the university world and prepare for the professional world. If, after considering the different options, you have decided that your future is to study a university degree, the same doubt arises that arose to many at the time: which one to choose. If you usually visit Xataka or you like what we are dealing with on this website, it is possible that You are interested in technology, science, engineering, space or health. Thus, we have filtered each and every grades of each and every one of the faculties and cities so that, at a glance, you can see the offer of degrees, where they are taught and its cut -off note. The degrees of degrees related to technology and its cuts of cuts That the following table with its 1,021 cells does not intimidate you. Using it is really easy. In the upper part you will see a search engine. In it you can introduce the name of the degree, such as “computer engineering”, “artificial intelligence”, “mathematics” or “biotechnology.” You can also search for a city. In any case, and choose the filter you choose, You can order the offer of degrees by cutting note. By default, order is from highest to minor. If you are looking for another degree or want to know other cutting notes, RTVE has a very useful search engine on its website. How you can check, the degree with the greatest cutting note is the double degree of physics and mathematics at the University of Seville: A 13,764. The lowest is the minimum to approve: a five. The offer of degrees that can be accessed with the minimum note is wide and includes endless engineering. In fact, the vast majority of engineering between five and eight on average, and the number of places is usually wide. And that is good news. According to the study “The employability of young people in Spain 2024” of the CYD Foundation on work outputs according to the university career, engineering (electrical, industrial electronics, software development, telecommunications, etc.) are those that offer better working conditions in terms of Stability in contractssalaries and affiliation rates. On the other hand, the Emerging jobs and sectors report 2024 highlights the Professional boom in AI. The demand for data engineers and Machine Learning has grown 625% since 2019, and that of artificial intelligence engineers an annual 83%, both with very low competence of candidates for offer. Last year they enrolled to do 341,831 students and 90.2% approved. That is, 295,250 students took a five or more. Another thing is the average note. In 2024, the average grade of those presented to the general and specific part (necessary to aspire to remove a note greater than ten points) was 7.05 nationwide. If we talk about the degrees contemplated in the upper table, The average note is 8.87 points. Image | Flickr (University of Seville) In Xataka | Pau, EBAU or EVAU 2025: What are the dates in each autonomous community for the selectivity exam

What is Google technology to mark and detect contents made with artificial intelligence

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Let’s explain What is and how does Synthid workthe tool developed by Google to mark and detect content made by AI. In a world like the current one in which the creation of texts and images with artificial intelligence is a reality, and where the video is the next step, so being able to make this identifiable content is important. So that you understand what it is about, we are going to start telling you what exactly this technology is and what it offers. Then, we will explain your operation a bit, and we will end up talking about your arrival and implementation. What is Synthid Synthid is a technology with which Mark the content that has been generated by artificial intelligence. What it does is generate a watermark in these published contents so that they are easier to detect by other systems, and that there is more transparency and trust in them. We live in a world in which it is already difficult to know if a text has been created by an AI or a human. The creation of images is also improving so much, that sometimes it is difficult to know when one has been created or simply modified using artificial intelligence. And the next step will be the video. This does not leave in a panorama in which the proliferation of false and misleading news seems to reach a new level, something that will make users begin to distrust even more in what is published. And it is in this context that Synthid technology arrives Created by Googleand that the company aspires that others also use. It is a technology that adds a watermark to the content created by AI, and then offers another technology to detect it. Google will start using this technology already in its generative AI systems. Therefore, When you generate an image with Geminito give an example, in the metadata of this image there will be a brand of water that you will not see, but other algorithms can detect to know if it is made by AI. Google’s idea is that other companies with AI systems to generate content They also adopt this standard. In this way, it will be much facilitated that then the rest of the platforms know if an image or video are made by an algorithm or a person has really made them. How Synthid works What Synthid does is embed digital water marks directly in images, audio, text or videos generated by artificial intelligence. These water marks are not visible, but are a line of code in the metadata that you are not going to notice. However, just as Google has this system to print water marks, it also has A version of Synthid to detect them call Synthid detector. In this way, its solution is able to generate the two necessary steps, to put an identifier to the content and to allow it to detect it. Therefore, the idea of ​​the company is that its chatbots and solutions to generate artificial intelligence content use this technology. Then, other companies will be able to use the Synthid detector to know if this content has been created by a Google AI. In fact, this can be An independent platform in which simply upload images, texts, videos and others, and will tell you if Pro Synthid has been created. And once this infrastructure is created, Google also expects other companies to be associated with them. In this way, they trust to make Synthid a standard for many to use it to put water marks, and many platforms also have the detector. When Synthid will arrive Although Synthid is a promising proposal and with many striking characteristics, At the moment it is not a universal standard. This means that it is only one of several proposals. Google is already betting on her products, but at the moment nothing more. The next step will be convince other AI companies to use this technologyand thus generate an ecosystem that makes it a standard. But for now this has not happened, and no matter how much Google marks its images, it is useless if no one else does. Therefore, we still do not know to what extent Synthid will end up use. The next months and years will give us a track If other companies join this technology or not. At the moment, Google has a list open for companies to start trying it. In Xataka Basics | Gemini 2.5 Pro and Flash: What are the novelties of the new artificial intelligence models of Google capable of thinking and speaking

The AI ​​and technology of today drive the dream that Glass promised

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The augmented reality is not new for Google. In fact, it is a segment in which they have wanted to play their foot for more than a decade. Glass It was the project that made us dream of glasses with which we could obtain all the information we would like directly from our retina. The problem is that Technology was simply not ready At that time. With the arrival of the generative AI, the balance has ended up balancing a lot. During The Google I/O.the company showed a prototype of glasses that reminded us of Google Glass, now driven with Gemini. Us We have been able to test this same prototype During our visit to the event and under these lines we tell you what we have found. Notice for navigators: they are still a prototype, so Google’s mission has been to collect feedback through closed -door tests. Glass lacked two keys: an AI like Gemini and the technology we have today Google’s return to the field of smart glasses seems to be more alive than ever, especially after knowing the development of the platform Android XR and his collaboration with Samsung and Qualcomm for the creation of Project Moohanthe augmented reality glasses that have the objective of standing in the Apple’s proposal with Vision Pro. Real -time translation can become one of the functions most demanded by these types of devices | Image: Google The company seems to come back with A renewed approachimportant strategic alliances and a much more mature technology. Android XR wants to spread through glasses of multiple formats And during the event we have been able to get back a bit with their glasses designed to wear them throughout the day. Google and Samsung They have not hidden with design Project Moohan and have not done so with these glasses either. This discreet approach seems inspired by the recent collaboration of Goal with Ray-Banand it is a clear recognition that smart glasses need to be, above all, glasses that people want to wear. The test (with failures) during the Keynote of the Google I/O | Image: Google During the test with this prototype I could check How Google has integrated its artificial intelligence assistant Gemini in a format that takes advantage of the first person vision. Unlike the original Glass proposal, where technology was the protagonist, here the experience flows more naturally. We would have loved to show you the interface during the test or a closest close -up of the glasses themselves, but unfortunately were some of the restrictions we had to meet. Sergey Brin himself, Google co -founder, recognized during the event the mistakes made with Google Glass, admitting that then They did not understand the complexity of supply chains in consumer electronics or how difficult it would be to make smart glasses at a reasonable price. The I see what you see Gemini It develops really well While we interact with the assistant through the glasses. The wizard uses the camera incorporated in the glasses to ‘see what we see’. In one of the demos, I stopped in front of a painting and directly asked who his author was and what he represented. Without having to specify to which table I referred to, the assistant responded precisely by providing data on the work and other related details of interest. Prototype glasses in the test with Gemini | Image: Xataka In another of the tests, I could also taste slightly Its potential capacity to help us with any type of taskasking him about the operation of a coffee machine in front of me. The wizard not only identified the model, but detailed the step -by -step procedure to prepare coffee. Although all the tests were in a safe environment where Google workers had control in case something strange happened, these tests implied me Everyone of possibilities that Google counted thanks to Gemini and a technology that is now ‘. Gemini drives device capabilities | Image: Google This ability to “see” and understand the context makes a substantial difference with respect to attendees who only depend on voice or text commands. It’s like having a partner who observes the world from your perspective and helps you when you need it. A ‘todologist’ that helps you in whatever. And that concept of direct aid has also been extended in other projects that Google has underway and that we could also see on Google I/O, as is the case of Search Live. In the current state in which this prototype was, the glasses had A touch button on one of the pins that allows you to activate or pause Geminiso that the assistant is not constantly listening and observing. In addition, when the camera is active, an LED lights so that people around you know that you are recording. This is the prototype on the demos | Image: Xataka The information was projected from one of the crystals, and everything we heard from Gemini could also see it in text. In the current state, the text is something uncomfortable to read, and that I have no view problems. However, we must remember that It is a very premature prototypeso it is a characteristic that surely changes a lot during the development cycle. And it should be remembered that Android XR is beginning to develop this year for this new concept of glasses, as the company has revealed during its Keynote. A strategy of alliances and price will be everything to determine its success What also makes this project of previous attempts distinguish is The collaboration strategy What Google is deploying. The company announced during the I/O associations with glasses manufacturers As Gentle Monster and Warby Parker, in addition to deepening their technological alliance with Samsung and Qualcomm. Google is investing up to 150 million dollars In his association with Warby Parker. Despite the enthusiasm, you have to be realistic: What I could try was a very early prototype with limited functionalities and in a controlled … Read more

Samsung’s survival in the chips industry is in the hands of its 2 nm technology

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2025 will be the year of 2 Nm semiconductor. The three largest manufacturers of integrated circuits, TSMC, Intel and Samsung, will start the mass manufacture of these chips before the end of this year, but The starting position Of these three companies it is very different. Taiwanese TSMC leads the semiconductor production market with A fee close to 60%has a well -assorted and stable client portfolio, and Your accounts are enviable. Intel and Samsung, however, are in a much more compromised position. The American company currently led by Lip Bu-Tan is trying overcome a very bad economic streak reducing their expenses and developing its technology with the purpose of increasing its competitiveness. Samsung, meanwhile, is also going through a complicated stage, as we are about to check. In any case, for these last two companies Its 2 nm technology It is his real lifeguard. Good news for Samsung: has reached a 50% wafer performance in 2 Nm These statements made in the middle of last March by Han Jong-Hee, Samsung general co-director, They diagnose with precision What is happening to this company: “First of all I sorry for the fact that the performance of our actions has not met their expectations. In the last year our company has not correctly responded to the semiconductor market for artificial intelligence (AI), which quickly evolves. “ “Our technological advantage has been compromised in all our businesses. It is difficult to see that efforts are being made to boost great innovations or assume new challenges” This Mea guilt It is aimed at the company’s shareholders and expresses that the directive dome recognizes not having made the right decisions in recent years. “Our technological advantage has been compromised in all our businesses. It is difficult to see that efforts are being made to Promote great innovations or assume new challenges. There are only attempts to maintain the status quo instead of generating disruptive changes “, Pray an internal statement Written by Jay Y. Lee, the president of the company. However, this is not all. Samsung has led for more than three decades the industry of integrated dram memory circuit LEADS THE HBM Chips Market so much (High Bandwidth Memory) that work side by side with the GPUs for the The one of the DRAM memories. In current circumstances it is evident that Samsung needs to trace as soon as possible. And it seems that it is in it. At the beginning of 2025 several South Korean media anticipated that Large scale manufacturing of 2 nm chips It had already begun In the company’s South Korean plants. However, this does not mean that Samsung already has everything tied. Chips manufacturers need the candle performance of their avant -garde nodes is at least 70%and, according to the South Korean newspaper Munhwa Ilbothis company currently moves in the range of 40 to 50%. There are still more than seven months to finish 2025, and presumably Intel and TSMC still do not produce integrated circuits in a massive way Your nodes 18a and n2 respectively, so in theory Samsung carries a positive inertia. We will see what happens finally, but there is no doubt that this year we will bring us strong emotions in the scope of the semiconductor industry. Image | Samsung More information | Munhwa Ilbo In Xataka | This is the chips war: a former SK Hynix employee is suspected to deliver stolen technology to Huawei

A former SK Hynix employee is suspected to deliver stolen technology to Huawei

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Although not monopolized attention to the same extent that TSMC, Intel or Samsung, the South Korean company SK Hynix is ​​done is One of the main designers and manufacturers of semiconductors of the planet. His specialty is The tuning of memory chipsand it is doing so well that LEADS THE HBM Chips Market so much (High Bandwidth Memory) like that of the DRAM memories. In fact, SK Hynix controls no less than 70% of the integrated HBM memory circuits market, so His leadership in this sector is overwhelming. In addition, it is the NVIDIA supplier if we stick to its GPU to artificial intelligence (AI) Thanks to the high competitiveness of your HBM chips. Samsung has an approximate share of 28%, and Micron touchs 18%. However, the success of SK Hynix is ​​based, as we can intuit, about its capacity for innovation. At the current situation, industrial espionage is the order of the day The Prosecutor of the Central District of Seoul (South Korea) has accused a former SK Hynix employee of illegally transferring technology to the Chinese company Huawei. This person’s identity has not yet transcended, but according to Digitimes Asia He is a name Kim, is South Korean and worked in the subsidiary in China of Sk Hynix until in 2022 he left this South Korean company to join Hysylicon, the Huawei subsidiary specialized in the design of semiconductors. Kim is South Korean and worked at SK Hynix until in 2022 this company left to join Hysilicon Presumably the Prosecutor’s Office is acting at the instances of SK Hynix. And it seems that this last company has discovered that during the negotiation of its hiring Kim gave Hysilicon Secret Information About advanced packaging technology used in the production of 3D NAND and HBM memories, as well as about multiple assembly Chiplets and of the CMOS image sensors. These technologies are protected by the property rights of SK Hynix, and in them largely resides the competitiveness of this company. According to the Kim prosecution he printed and took more than 11,000 photographs of internal SK Hynix files with the purpose of abandoning this last company and using this confidential material to get work in the competition in very advantageous conditions. In fact, according to the researchers of the Kim accusation he presented the material that extracted from SK Hynix at least two Chinese companies. One of them Hysilicon, He finally hired him. An important note: neither this last company nor its matrix, Huawei, asked him to give them commercial secrets, but, according to the Prosecutor’s Office, they accepted them as part of the hiring process. More information | Digitimes Asia In Xataka | China’s future in the chips industry is in the hands of a single company almost unknown: Sicarrier

We already have a rigorous study of the impact of US tariffs on the technology we buy. It is shocking

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The tariffs you are currently preparing The US government led by Donald Trump have American technology companies in suspense. In the middle of last April the US Customs and Border Protection Office He published a statement in which he officialized that some electronic devices and strategic components were tariff exempt. Of all of them. However, it is a strictly temporary measure, so presumably in the future tariffs will reach the consumer electronics industries and semiconductors. The US Technology Consumers Association (known as CTA for its English denomination) has published a very detailed report which has been prepared by Trade Partnership Worldwide (TPW), a consultant specializing in economic and commerce analysis. This study evaluates The foreseeable impact that tariffs They will have electronic consumer devices, and their conclusions are shocking. Two notes to get into flour: according to TPW, the Gross Domestic Product of the US will be reduced by 69,000 million dollars annually as a result of tariffs and consumers will spend 123,000 million less a year. The price of technology will increase between 11 and 70%, according to TPW Before moving forward it is important that we keep in mind that the study of this consultant describes a scenario in which the 90 -day suspension of the tariffs executed by the US administration ends in July and the highest taxes announced by the government led by Donald Trump are activated. This scenario is perfectly possible, hence the interest of this report, but at the situation of current instability it is also feasible that finally The announced measures are not implanted as the US government has foreshadowed. Video game consoles would be the most affected because most of them are manufactured in China Anyway, as I have anticipated a few lines above, the conclusions that TPW collects and those that CTA has given visibility are very worrying. According to this report, the average retail price of mobile phones will increase by 31%; that of the monitors, 32%; that of laptops and tablets, 34%; and that of video game consoles nothing less than 69%. The desktop PCs would not be released from an increase in their price close to 24%. Video game consoles would be the most harmed because most of them are manufactured in China, so they will presumably be subject to 145%tariffs. If so, according to TPW, imports in the US would fall by 71%. This almost apocalyptic scenario from a commercial point of view describes the impact that tariffs will have on the pocket of US consumers, but it is reasonable that we ask ourselves what will happen to US products that we will buy in Spain or other European countries. The most reasonable conclusion we can reach is that its price will also be increased by two reasons that run in parallel. On the one hand if US companies must assume higher costs due to the need to import components or manufacture abroad, prices of their products They will rise throughout the planet. And also If Europe decides to apply reciprocal tariffs To the imported products from the US, which currently seems most likely, again European consumers will pay more. We will see what happens finally, but the panorama is certainly not flattering. More information | TPW/CTA In Xataka | Tariffs force Apple to manufacture US iPhone in India. It is not a problem: it is a tactic with many advantages and few fissures

why technology has not yet solved this

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Today tickets for Bad Bunny concerts went on sale. What should have been a happy day for fans It has become a nightmare. Many complained in networks of the error messages In the browser, the endless virtual linesthe Forced interruptions of the process or the worst, the messages of “exhausted entries” –or error– when They caressed success In that mission impossible. We are in 2025 and one would expect technology to have fixed this. And yet, he has not done so. What is happening? SALE BY ARRIVAL ORDER = Frustration. Traditional ticket sales systems work under an old and theoretically simple principle: the first one that arrives is the first to buy it. In computer science this is known as the FIFO (First In, First out) system for the implementation and management of queues, and has no major mystery. Or at least, not until you try to apply it to the sale of macroeventos tickets. Then, disaster. Too much demand. We have experienced it today when tickets for the concerts of the Bad Bunny world tour have come to sale. The demand has been colossal and has exceeded the offer, which has caused the service that managed the direct online sale has collapsed. Error messages were constant, and many users saw how they had to wait endless virtual lines And the process was interrupted at totally random times without them being able to do anything. When virtual tails reach figures of 15,000 users – for example, there are much more crazy– The system ceases to make sense. It is not useful or operational. He “Scalping“At the agenda. This stock market It is applied too In these scenarios and refers to the technique of buying tickets with bots and other systems that allow the limits imposed on entries for inputs for human users. Ticketmaster even created the Fan-To-Fan system As a controversial official controversy blessed by the system that Tickemaster, of course, takes its commission. It is estimated that Ticketmaster and Live Nation They control 70% of the business of the sale of tickets. And more problems with resale. There is an entire economy Around pages like Viago or Stubhub, which They buy mass tickets and then try to resell at greater price. The German Heavy Metal Rammstein Group went to court When demanding Viagogo, a company with which they have been fighting since 2018 for this issue. It happened with Renfe tickets. In April 2022 Renfe offered bird tickets to 15 euros. The promotion was striking, so I threw myself to the browser of my PC to try to take advantage of some of the options they gave me. After achieving access to virtual tail to buy one of those tickets, I met 166,321 people in front of me and an estimate of waiting time for an hour and a half. Half an hour later there were 144,115 people in front. The alternative was to use Renfe’s mobile app, but the process made it clear that these types of problems are constantly presented. The raffles work. In popular events such as Cycotourist march QH (Quebrantahuesos) The fans who want to sign up must first register as QH users, something that gives access to a raffle granted by the dorsals. It is a very reasonable solution to events with a demand greater than the supply. It is the method that also FIFA has used for years To sell tickets for football World Cup matches. The solution exists, only that it does not apply (much). It is a good example of a relatively simple system to solve the problems that have arisen with Ticketmaster on numerous occasions. The process would be as follows: Open a pre -registration to enter the raffle of entries. Leave it open for a prudential time of, for example, two weeks. There would be no careers for entering the pre -registration or being the first, because that would give exactly the same. Therefore, server overload risks are minimized. During that pre -registration the user must overcome Captcha challenges, double verification against email and storage of some credit card data. With this, the participation of bots in the process is greatly prevented. Payment of a symbolic commission for the pre -registration. Another very powerful measure to avoid the participation of bots. There should also be a limit for the number of records that can be made per person/mail/payment card. From there the draw is celebrated, which is granted X inputs from the number Y Registry. If there are 1000 tickets available and there are 10,000 pointed users, an example would be for the draw to come out number 6,713. The records from 6,713 to 7,712 would get their entrance. The winners could register in their account and buy the entry into a certain period. If not, that entry would be offered to the next one who could not obtain it after the draw, and so on. There would be no frustration, just bad luck. The draw or lottery process is much less frustrating. Of course there is the possibility that you do not get the entrance, but a system like this would avoid the great problems of the current direct sales mechanism that has proven not to be effective. But they do not decide the sustained. There is another big additional problem, and although there are solutions such as the proposal, who decide how entries are sold and buy are artists and promoters, who can go to alternative solutions. Concerts on demand. For example, Announce additional dates of concerts by surprise. It is a peculiar idea: it is thus possible to announce a limited number of concerts to measure demand, and from there adjust the offer keeping the number of events (if they can be replicated) programmed or changing it according to said demand. In Xataka | Taylor Swift has canceled the sale of tickets with Ticketmaster. It is the confirmation that the current system is broken

Japan has just been put in the career of quantum computers. And he has done it with his own technology

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China and the US are the countries that are dedicating more resources to the development of Quantum technologies. And also those who are reaching The most relevant achievements. However, no advanced country can afford to remain out of a technology with An indisputable rupturist potential in the medium term. In this field Japan is adopting a discreet position, but its contributions, although they are not as numerous as those of the other two countries that I have mentioned in this paragraph, are also very important. In 2023 a group of researchers from the Riken Center for Quantum Computing, in Japan, led by Professor Keisuke Fujii He devised a very advanced algorithm which dramatically reduces the computational complexity of some quantum procedures. His work was published in the scientific journal Physical Reviewand even today is the best available tool to efficiently reproduce the atomic level interactions that take place in some complex materials. The protocol designed by these Japanese scientists manages to deal with temporary evolution operators in a much more efficient way than the technique used so far, which is known as trotterization. In broad strokes these operators are numbers matrices that describe the very complex interactions that take place in quantum materials. In addition, the algorithm devised by Fujii and his colleagues is a hybrid solution that combines quantum and classic protocols, and has the ability to allow relatively simple quantum computers, such as those we have now, face very complicated problems. The Riken and Fujitsu center have made a quantum computer of 256 cubits Today, just a few hours ago, the Riken Center for Quantum Computing and Fujitsu They have announced which have developed in a joint project a superconductor quantum computer equipped with 256 cubits. A priori may not seem like a great achievement if we are in mind that IBM already has a condora superconductor quantum processor of 1,121 cubits, and also The Heron platform (5k) endowed with error mitigation. And the China Telecom Quantum Group (CTQG) and the Center for Excellence in Quantum Information and Quantum Physics of the Chinese Academy of Sciences have developed The Xiaohong quantum processor of 504 superconductor cubits. One of the most attractive assets of this quantum computer is that it allows efficient to scale the number of cubits However, the implementation of this Japanese machine deserves to be considered an undoubted success if we take into account that it uses technologies developed entirely in Japan. It does not use the hardware designed by IBM or Intel, which is what some research centers disseminated by Europe have done. One of the most attractive tricks of this Japanese quantum computer is that it allows Efficient scalar the cubits number No need to completely redesign all the architecture of the machine. In addition, the dilution cooling system used is, according to Fujitsu, more efficient than the solutions usually used in other quantum computers. This statement is credible because this 256 cubits machine works properly with the same cooling unit as the previous 64 -cubites quantum computer of the Riken center. It sounds very good. However, this is not all. The plan of the creators of this quantum machine is to have a computer of 1,000 cubits ready in 2026. If Japan get it, it will be placed in this field just one step from the US and China. Image | Fujitsu More information | Fujitsu In Xataka | Physicists believed that this quantum phenomenon was impossible. They were very wrong

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