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

The US wants to build an unprecedented antimisile shield called “Golden Dome”. And Spacex has suitable technology

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The idea of ​​an antimile shield that protects the United States from enemy attacks is not even original. Already in the era reagan, The country fantasized with an initiative nicknamed “Star Wars” That never saw the light. Now, the Trump administration wants to dust off the project with technology of the 21st century and a more intimidating name: “Golden Dome” (the golden dome). With Spacex technology. A technological consortium headed by Spacex, the Aerospace Company of Elon Musk, leads the race to develop part of the Golden Dome, Publish Reuters. Its proposal consists of a constellation of between 400 and more than a thousand satellites dedicated to detecting enemy missiles, following its trajectory and determining if they suppose a threat to the territory of the United States. Other separate fleet of about 200 satellites (armed with missiles or lasers) would be responsible for intercepting missiles; Although the group led by Spacex would not be, according to Reuters, involved in the offensive part of the system. Old acquaintances. In addition to Spacex, two other technology companies are part of the initiative: Palantir Technologies and Anduril Industries. Palantir is a government software co -founded by Alex Karp and Peter Thiel, old acquaintances of Musk. Anduril specializes in military drones and Autonomous Defense Technologies; Its most famous founder is Palmer Lukey, the creator of the Virtual Virtual Rift helmets. All of them, very aligned entrepreneurs and Donald Trump’s millionaire donors. If you liked, subscribe. The approach proposed by Spacex, Palantir and Anduril has an unorthodox turn for a defense contract for this magnitude: a subscription model. Instead buy and own satellite infrastructure, the Pentagon would pay a fee to access its services. This model, always according to reuters, could expedite the implementation by dodging the conventional procurement protocols of the Pentagon, but would also tie the government to a supplier and limit its control over the development and future prices of technology. After the publication of Reuters, which generated comments on possible conflicts of interest and worse things, Elon Musk responded in his X profile: “This is not true”, without giving more details. From Iron Dome to Golden Dome. The inspiration in the name seems clear: the Israeli iron dome. But the differences also appear in sight: Israel is a small country, with short -range threats. The United States is a continental country exposed to attacks from multiple vectors and with new threats, as the hypersonic missiles developed by Russia and Chinawhose erratic trajectories and extreme speed challenge current systems. Replicating the iron dome on an American scale is technical and economically unfeasible. Hence, the alternative that right now has more ballots is a solution based on the Starlink satellite constellation, which would cost between 6,000 and 10,000 million dollars. More politics than defense, for now. Although Spacex and its technological partners seem to be in the lead, traditional defense giants such as Lockheed Martin, Northrop Grumman, RTX or Boeing are not far behind and also bid on the part of the cake. The Pentagon has received proposals from more than 180 companies. The big question is whether Golden Dome will really be a defensive revolution against real threats (such as hypersonic weapons or orbital bombing systems) or If it’s just an electoral promise closer to the science fiction of Star Wars than to a pragmatic military strategy. If something has taught us the current administration is that nothing they are going to do tomorrow is predictable. Images | Peter Thiel and Elon Musk (PayPal), Starlink Stelas (Lowell) In Xataka | Space energy never worked. A military escalation in orbit is making it come true

The production of renewables in Europe is so strong that it is forcing nuclear power plants to work

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In Europe there is a division around the closure of nuclear. Some countries have already disconnected them at all, such as Germanyor are in the process of doing so, like Spain. Meanwhile, France keeps them as a pillar of its electrical system. However, the arrival of spring has evidenced something that was suspected: the rise of renewables have forced nuclear plants to stop. A lot of light and little demand. The production of renewable energy has saturated the electrical networks in several European countries. According to Bloombergthe immediate consequence has been the fall in electricity prices, which on holidays (Easter and Easter) and with low demand have even become negative. In Spain, five of the seven nuclear reactors They stopped or reduced their burden And, in the case of France, its electric company, known by its acronym EDF, has cut its atomic production in an average of 4GW daily in March, double a year earlier. Negative prices When talking about negative price it may seem that electricity will be free, but it is not. This means that the electric market, based on time auctions, can yield negative prices when there is too much supply and very little demand. In those hours, producers or electrical companies have to pay to place their energy on the network. Renewables, which have legal priority of access, continue to function. On the other hand, nuclear cannot lower their power so quickly and operate in these conditions, especially in countries such as Spain where the tax burden has increased by 71% since 2019, According to PWC. The clean boom. The rise of renewables is promoting many countries to operate with energy 100% cleanrecently Spain He joined this new coverage. Yes, it is true that the increase in installed total capacity has grown vertiginously in a few years, reaching almost 700 GW According to the Global Energy Review 2025. In this commitment to clean generation systems, storage systems also enters batteries either Reservoirsin addition to creating A good electric structuredespite the fear of companies around The uncertainty of the closure of nuclear. What about nuclear energy? If the nuclear operate less hours and with low prices, they lose profitability. And if they also have to stop and restart due to demand variations, costs rise and technical risks increase. As has detailed The New York medium, France, with 70% of its electricity still of nuclear origin, is seeing how that technical rigidity collides with a system in transformation. EDF has warned that frequent variations hinder maintenance and routine tests. Spain already has put closing date To all its reactors between 2027 and 2035, and other countries follow that path. Forecasts According to Staffan Bergh, chief analyst of Bodecker Partners: “We will see many more hours with negative prices, and these will only increase during spring.” In this line the analyst explained that it is not necessary to install more renewable, but in knowing how to use them well, manage them better and complement them with intelligence. Image |Nuclear forum Xataka | A Tesla co -founder has done business with tariffs: it extracts rare land from old batteries without going through China

The allergic of Spain have been enjoying a truce for two months thanks to the rains. Now curves come

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We are in full spring and approaching the month of May. Or what is the same: the pollen season is thrown on us. Pollen is one of the main allergens and, in case this was not enough, The trend is growingthat is, more and more people suffer allergy to some type of pollen. An intense season. The experts They foresee an intense pollen season This spring. Although the weeks with the highest incidence of allergens are usually in the months of May and June, the meteorology can cause the first sneeze to catch more than one by surprise. Meteorology, an important factor. The rain is one of the most important factors When it comes to knowing whether or not they wait for us for days of sneezing. Primaveral rains can prevent the concentration of allergens in the environment, at least for a few days. And if there has been something in recent days (and the last months) is rain. Although in recent weeks we have not seen episodes of torrential rains, the possibility of an important increase in the concentration of pollen in the environment has been limited by rainfall. Looking back. However the relationship between moisture and pollen It is more complex that the simple “sweep” effect. The persistent rains of recent weeks may have protected us from early pollinators, but have also contributed to the accumulation of soil moisture and in the pollinating plants themselves. As Physicist José Miguel Viñas explains in Meteoredspring rains, situations like this, in which a rebound of temperatures follows a pause in the rains, pollen levels tend to shoot. The temperature another factor to take into account. And it is that the temperature is the other great determinant when providing the levels of allergens that will stalk us in the next few days and weeks. Many plants begin to wake up from their winter lethargy in the mid -winter and begin to accumulate energy. After a certain accumulation threshold, these plants can start the pollinating phase of their reproductive cycle. First notices. Thus, this week you can mark the beginning of the season for many allergic. According to The data of the monitoring of the atmosphere of Copernicus, this week some allergens will already emerge in some areas of Spain, especially In the south and in the northwest of the Iberian Peninsula. In the Peninsular South it will highlight the Olive Pollen. On Thursday and Friday in some areas of Andalusia we could see concentrations of more than 5,000 grains per m³ of this allergen. Throughout the week, concentrations of more than 100 grains/m³ will be common in the southern quadrant of the peninsula. The grass will be another allergen to take into account in the central and south, although with less important concentrations, below the 100 grains/m³. During the week an increase in birch pollen concentrations is also expected in the center and north of the Iberian Peninsula. The presence of this pollen will be especially noticeable in the northwest, in Galicia and west of Asturias, with concentrations that would exceed 100 grains/m³. The incidence would be moderate in the north third and in areas of Castilla y León. In Xataka | The time of the year in Japan has arrived where everyone has a mask. The fault is World War II Image | Copernicus

The collateral effects of LaLiga blockages in thousands of users

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Soccer Week, Blocking Week. With the support of a judicial sentenceLaLiga has power to ask the operators to Block certain IP addresses. The problem of killing flies to guns is that these blockages do not affect only the domains related to the retransmissions that LaLiga considers illegal: companies and individuals that have little or nothing to do with football are being affected. Visiting a website is not available is a draft problem, even more so if the address you need to access is necessary to work. Movistar and O2 They are at the head of criticism, but even “small” operators like Digi They have been intensifying the blockages for months. From Xataka spoken with affected and compiled several of the testimonies that flood both social networks and forums. The problem is common and easy to replicate: football day, problem day. Why indiscriminate blockages At first glance, it clashes that the order of an operator to block a unique IP address, supposedly to issue illegal content, can leave dozens of websites inaccessible that they have no relation to her. Although it seems illogical, this effect is a direct consequence of how an important part of the Internet infrastructure works. A habitual (and economic) practice in web accommodation is shared hosting, where multiple sites operate from a single server and share a single IP address. This configuration causes an unwanted collateral effect: as the blockade applies to the complete direction, it cannot differentiate individual sites. Thus, if a website with supposedly illegal football streaming shares the IP with the website you use to work, both will be blocked if the operator is given the order. It is the reason why a fall or blockade in a CDN (Content delivery network) as Cloudflare either Vercel It ends up causing dozens of websites to cease to be accessible. If the service provider blocks an address, those that share it fall as dominoes. How it is affecting users There are several more than known websites to which users They are not being able to access certain websites during the game days. In the closest cases, Xataka companions have suffered problems to access platforms such as Bluesky from the average in specific cases. Always on the weekend (coinciding with the game days). In some cases, the service provider clarifies that we cannot access a certain website by the judicial block. In others, simply do not load the page It is the same case as a server, which a few weeks ago suffered several problems to enter forocoches (where there are already numerous threads reporting difficulties to access the forum). The tonic was exactly the same. In the hours before the party, access to this address was blocked. It was not until the hours after the meeting when it could be accessed normally, both from mobile data and from WiFi. This is a relatively lower problem. Gravity increases when the user cannot access their web platforms necessary to work. This is the case of Álex Jiménez, a journalist of the Local section of Córdoba in eldiario.es. “In my case I am a Digi user. The blockade is simple: at the time the weekend arrives and LaLiga’s games, Besocy’s website stops loading, showing the message I shared in the publication. I have tried to use other devices such as my personal phone or the tablet, both for wifi and by mobile network, and the blockade continues to exist. Normally it stops working both Saturday and Sunday. There is no margin of doubt: the message you see when trying to access Besocya platform that provides media tools, is that “this IP address has been blocked in compliance with the provisions of the judgment of December 18, 2024”. Even more concrete is the case of Rodrigo, who has a Homelab At home to house some of your websites. During the hours before the matches, in some cases from noon, Cloudflare begins to cut the tap. “I use Digi, in my case I have hired the 10GB because I give it enough use since I have a homelab at home and I lodge enough services for the public too. I am happy in that aspect, speed, stability and support. Until the day D arrived, when I see that I cannot access one of my webs Being failing. And indeed, with a VPN, in my case I use protonvpn, connecting even to a server in Spain, everything worked magically, it was to disconnect the VPN and nothing was loaded. Since then I began to monitor all the cloudflare IP’s, at least those that assign me, by region or the plan that I have hired with them. And as a clock, every time there would be football, Cloudflare fell and the second my websites. Rodrigo’s case is one of the most visual, since he has shared with us the hours in which Cloudflare begins to give problems: they coincide with the meeting days and begin to “revive” when the game ends. Fall in the days that there is a game, during the previous hours and its celebration and with return to normal after its completion. This is the blockade that, indiscriminately, are applying operators under court order. What can I do as affected LaLiga blocks are protected by a judicial sentence, one that Rootedcon He wants to lie down after collecting data and testimonies of users and companies that are suffering the blockages in legitimate web addresses. He has been trying to propose nullity incident since February. For now, This is a legal practice (although with serious doubts around and with several demands against him) and we cannot prevent in any way that the operator is given to carry out the blockade. Despite this, we can put some practices into play to try to overcome these blockages. Use VPN: In Xataka We have detailed How to avoid the lalaiga block to cloudflare using VPN. This is the easiest way to skip the restriction since, to perform the blockade the operator not only … Read more

The United States has started a pulse in the currency market. One in which the euro is being imposed on the dollar

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Uncertainty does not feel good to the bags. Nor to the dollar. At least if we look at its evolution against other currencies, such as Yen, the Swiss Franco or The euro. With The commercial war And Trump’s attacks on the Federal Reserve as a backdrop, the green ticket has started the week standing at some Minimum levels in front of the European currency that had not been seen for years. The big question is … What does that mean? A March down. Although uncertainty seems to have been installed in the markets, everything indicates that the dollar will say goodbye to March weakened compared to other currencies. He US dollar indexwhich measures its strength against the main foreign currencies, started the penultimate week of the month falling 1% until they were minimal that had not been seen for more than three years. Meanwhile, the euro was quoted above $ 1.15, its maximum value Since 2021. The mirror of currencies and gold. The dollar falls in front of the yen And the Swiss Franco and the eurowhich now marks $ 1,1499 after having reached on Monday 1,1573 per first time Since the end of 2021. The scenario feels good too (At least in value) To gold, one of the most consolidated shelter assets: yesterday the precious metal reached $ 3,430 per ounce. Only so far this year has shot above 27%. Click on the image to go to Tweet. The situation of the euro. With that backdrop there are analysts who They are already highlighting the pronounced ascending curve that records the euro in front of the green ticket so far from 2025. of the minimum change of 1,024 Dollar registered in early January has passed to 1,476. And with a graph clearly up. After the latest advances of the euro against the dollar and its reinforcement against the US currency, so far from 2025 the European currency has risen 11.3%. The balance is also positive for the pound (6.8%), the Swedish crown (16.5%), the Swiss Franco (12.3%) and the Yen (11.7%), which They overcome the advance of the European currency. The criticism of the Fed and Powell. When analyzing drifting the dollar Analysts usually point out various factorssuch as the crisis of trust in the green ticket, a loss of attractiveness in a scenario marked by Trump’s protectionist policies or changes in the global economic order and US debt. After the last fall, another added key indicates: the criticism From the White House to the Federal Reserve (Fed) and its responsible, Powell, reluctant to lower interest rates. Trump’s threats affect the image of the body, which can also influence the value of the dollar or the confidence in the stability of US markets. “Trump’s renewed criticism of the FED president this week is a reminder that commercial policy is not the only channel through which the unconventional approach to the administration could undermine the dollar and the US assets markets,” warns in CNN Jonas Goltermann, senior economist of markets at the capital firm Economics. Why is it important? For several reasons. First because the dollar is more than the currency with which the Americans pay their purchases. Throughout the last 80 years it has been the Vault key of the global financial system, acts from reference and its position against other currencies has influenced the US economy. He did it then. And it will probably do it now too. There are analysts who They point that Trump seeks to weaken the dollar to favor US exports (one of its declared objectives is to reindustrialize the country) and balance its balance and commercial deficit, something that tariffs would also help. The depreciation strategy of the green ticket would also lead to threats, however, such as problems to face debt in the United States. Images | Gage Skidmore (Flickr) and Stock Birken (UNPLASH) In Xataka | There is something more disturbing than the collapse of the bag: the collapse of the shelter values ​​such as the US dollar and debt

Tesla had opted a good part of his year to a Tesla Model and below 40,000 euros. Right now is an illusion

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The year 2025 has not started for Elon Musk’s company as expected. In fact, it has begun in all the ways that could not be expected if you are in charge of a car company. At the fall in the price of shares one has to add more or less continuous attacks to the company itself with boycots of all kinds (some violent and very dangerous) and a Decrease in really alarming sales. Although it is about to see to what extent sales have been weighed down by the hangover to modernize the production lines to get the new Tesla Model and Juniper (which also came out in its most expensive version) and it is foreseeable that they grow over time, the truth is that the thermometer In countries where more electric cars are sold He has jumped the alarms. In France and Germanythe sales of his Tesla Model and have been very poor. And that is a problem for the company since in both cases we talk about countries where activists have been more belligerents against Tesla and where Elon Musk’s political approach with the extreme right has been more criticized. Part of the strategy to refloat sales was to put on the market a small and cheaper tesla. It has all the meaning of the world since SUVs are still the best selling models and the company needs an alternative that moves below 40,000 euros, with competition squeezing strongly. This tesla model and will be called, according to The Wall Street JournalTesla Model Q. The newspaper assured in December 2024 that the company’s plans went to launch this model in the coming months. Of course, it would not be the $ 25,000 car that Elon Musk has promised, this option would be more than $ 37,000. However, Reuters It ensures that these plans have been delayed and that it will not be until 2026 when we see this model and on a small scale. Better for 2026 The news agency pointed out a few weeks ago that this Tesla Model and small would occur in the United States but that there were also plans to produce it in Europe and China, so it is expected that the assembly lines could be both products at the same time and, therefore, share a good part of the components. Then, in March, Reuters He pointed out that internal sources of Tesla estimated the cost savings of production of this new electric car at 20%. It is not known if that cost reduction would be associated, for example, to a smaller battery. What the agency’s journalists assure is that the new Tesla Model Q or Tesla Model and in more affordable format would be little affected by tariffs. They point out that Tesla has been promoting the internal supply of their pieces in the United States for two years and, therefore, it would have less components affected by the new commercial barriers applied by Donald Trump that tax with 25% the import of cars but also of the pieces arrived from outside although the car is manufactured on US soil. However, and although they expected to produce 250,000 vehicles in their plants in the United States, Tesla has delayed the plans to 2026 but it is not clear what are the reasons that have led to making this decision. Keep in mind that at the end of last year the information of The Wall Street Journal He already referred to an internal document of the company shared with Deutsch Bank, so The vehicle should be very advanced In its development. It is not the first time that the company delays plans related to its lowest cost cars. For years he has been talking (and promising) that we would see a tesla of $ 25,000 but Elon Musk rejected this route during the presentation of the Tesla Cybercab And, even, this possibility of “Absurd idea”. The company’s owner has prioritized autonomous driving, ensuring that this source of income will be key to Tesla in the coming years. However, the competition is tightening and already has cars like the KIA EV3 or the Renault Mégane E-Tech (among others), vehicles that would fight with that future Tesla Model q or Tesla Model and in miniature for price and size and that are already sold for less than 40,000 euros. Photo | Xataka In Xataka | “Cheaper than a BMW 330i”: the owner of a Tesla Model 3 reveals how much has spent five years with her electric car

Thus the “time thieves” act and how to recover your productivity

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Starting from the humble basis of accepting that We are not robots but peoplewe can rarely be 100% efficient throughout the day, both when meeting the workday, studies or personal tasks. However, it is very likely that at the end of the study or the study session you have the feeling that You have not advanced In your most important tasks, even if you have not stopped for a moment. According to explained in the podcast Write About Now The writer and productivity expert Laura Vanderkam, this occurs because there are certain habits and routines that act as authentic time thievesremoving minutes and hours without you realizing. Identify and face them can make a difference between A productive day and one full of frustration that affects both your work performance and your personal well -being. Time escapes in small distractions The simplest thing is that the time you dedicate to a specific task ends by diluting, drop by drop, In other distractions. It may be that while you work in a project, you are distracted when you receive a notification, answer a message or check the mail. As they commented on the Asana productivity blogeach interruption can make you lose up to 20 minutes to recover the initial concentration levels. Thus, the minutes are added and, At the end of the day, you have lost a significant amount of time In activities that were not in your plans and, what is worse, that you don’t know where all that time has gone. These time leaks usually go unnoticed because they occur as short interruptions but, in reality, the sum of all of them has a huge impact throughout the day. How to discover what you waste your time The first step to combat time thieves is to become aware of them. Sometimes you know exactly what steals your timebut other times you need to analyze it thoroughly. A simple strategy is to write down for several days in what activities You use your time. This will allow you See patterns and detect habits They make you less efficient. Check the mail As soon as the notification appears on the icon, see a video on YouTube and realize that you have been 10 in a row or send a fast message to a friend and that, without realizing it becomes a 20 -minute conversation. All sum. Detecting and being aware of such behaviors is the first step to minimize them and avoid time leaks during Concentration periods. Another useful tool is the Automatic monitoring. In most cases, we are not even aware of the amount of time we use in tasks. Luckily, Technology does know. Currently, All operating systemsboth smartphones and computers, have a monitoring function of the use of applications. This function tells the time you spend daily (or weekly) in a certain application, which will help you discover if that time is reasonable Or, on the contrary, it is a time thief. The selfish side of time Discover that you spend several hours a day communicating with your classmates with Slack or Microsoft Teams, or seeing in a weekly graphic the time you have gathered are also ways to become aware of the time you dedicate. But much more important, an opportunity to adopt measures and reduce that time applying a “more selfish” profile. After all, Your time is a finite resource And it is necessary to learn to say no and impose limits. If you can’t avoid certain distractions by establishing the “monk mode” for deactivate all notifications And stimuli outside your task, at least limit your access during working hours. For example, you can adopt the strategy of “Ulysses contract“, establishing specific schedules to check emails and social networks, instead of doing so continuously. This helps avoid the habit of entering” just a moment “and end up wasting much longer than expected. On the other hand, nonlinear communication of slack or other professional messaging applications allow to adapt the rhythm of communication to your needs. Just let your colleagues know that You need concentration breaks in which you are going to concentrate on getting your job, and that you will answer as soon as you finish it, so that they do not expect an immediate response during those periods. Reduce meetings time can Look like a chimerabut being aware of the time you spend in video call applications such as Google Meet, Zoom or Teams can make you see the working time that takes you per day and if it is possible to reduce it. A first step is to cut in 10 minutes the usual 30 -minute stripes offered by default calendar applications. On average, attention remains for 23 minutesso if you manage to scratch those 10 minutes to each meeting, at the end of the day Time gain is very remarkable. In Xataka | Lack of motivation is a problem for productivity. The trick to avoid it is simple according to science: start In Xataka | If your chair holds in a job interview, it is no accident: they are evaluating more than your curriculum Image | Unspash (Maxim Ilyahov, Lala Azizli)

Humanity has been using the Earth’s magnetic field as a navigation guide. Some researchers want to retire it

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In recent decades, GPS has become part of our day to day. If it is a military technology, the global positioning system has been guided by roads, forests and seas, in the city and in the mountain, but always with an important limitation, access to satellites that place our navigation devices. That could change. Magnav. Thanks to magnetic navigation systems or Magnav, and more specifically to a new development that uses a quantum adjustment system that promises more precise navigation. A navigation, in addition, immune to interference, accidental or caused, which allows significantly reducing satellite navigation dependence. Magnav systems (Magnetic-Anomaly Navigation) o Navigation by magnetic anomaly are based on the fact that the Earth’s magnetic field It is not uniform. That is why it is possible to use a magnetometer that indicates our position by measuring small variations in the magnetic field of the planet. Use the Earth’s magnetic field as Navigation reference It is not something new but something we have been doing since the invention of the compass, but the new system promises to achieve unusual precision. That’s where the quantum dimension of the new system comes into play. Navigation “quantum”? The new technology, They explain their developersis based on the use of quantum magnetometers that combine a noise elimination system with a cartographic algorithm. The magnetometers are based on the optical detection of the precession of the atomic spin, for which they use a steam cell that contains rubidium atoms, They detail. This technology opens the door to measure the magnetic field of the Earth with greater precision, which translates into a better capacity to locate ourselves on the map. All this, they also highlight, in a device small enough to be used in autonomous vehicles or in fixed wing drones. Q-ctrl. Behind this system is an Australian company, Q-Ctrl (name that refers to “Quantum Control”) The company emerged in 2017 Like a Spin-off of the quantum science group of the University of Sydney. By land and air. RecieBy land and air. Recently, the team responsible for this system put it to the test. With satisfactory results: the device obtained errors in the measurements up to 46 times less than the inertial navigation systems usually used as a complement to the satellite. The measurements were made on flights at a height of 19,000 feet, in which it was also possible to fly with a total error in the 22 -meter trip, 0.006% of the distance traveled. The results were “consistently” at least 11 times better than those obtained with inertial systems. The team responsible for the development of the new tool has published some details in an article. The article has not passed the pairs review filter but can be found freely Through the repository Arxiv. Substitute or complement. Satellite navigation systems are central today and this is precisely its weak point: the emergence of GPS signals puts both commercial routes and passenger transport, but it could also put into check military operations in cases of armed conflict. The interception of these signals can therefore be used as well as a commercial and war weapon. We have various tools that allow satellite navigation to attend, but few systems can at the same time have the accuracy of these without depending on them. That is why having alternative mechanisms of high precision can be more precise than ever. In Xataka | The North Pole is moving very fast, and that has forced many airports to rename their clues Image | NOAA NCI / Q-ctrl

The US promised them very happy resurrecting its nuclear industry. Now a problem with tariffs has been created

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The commercial war that He has started United States this April has given much to talk about, especially for Tariff dispute with China. This situation has put an old energy problem on the table: the dependence of foreign uranium. An uncomfortable dependence. The policies of the current American administration They have made clear their position not to continue towards the change of the energy transition. The Trump approach is placed in fossil fuels, but in nuclear matters it was preceded by Biden. In this specific case the energy constant is has maintained Between both governments, which in the road map left that nuclear energy should triple. In this way, the United States has been importing 99% of Uranium concentrate to make fuel for your reactors. In addition, the 54 nuclear centrals of the country generate about a fifth of all the electricity it consumes, According to Ciphernews. Who are the suppliers? As detailed in the same medium, most of the uranium has come from Canada, Kazakhstan, Australia, Russia and Uzbekistan, and although this mineral It was exempt of tariffs, the situation can vary Seeing the stage. In short, the issue has generated a stir in the energy sector and has exposed a structural vulnerability in its nuclear supply chain. A bet towards national mining. According to the United States Energy Information Administration (EIA)last year the national production of uranium concentrate multiplied by thirteen, but still is not enough to meet the demand. However, Scott Melbye, president of Uranium producers of America, He has assured that at least six companies have restarted mining operations in the country. It was not always like that. USA It was the largest uranium producer of the world in 1980, but in the following decades other countries ate the land, as was Canada and Kazakhstan because the extraction costs were lower. The situation worsened with a nuclear disarmament agreement of the USSR and for 20 years the half of the US nuclear fuel came from the recycling of Soviet uranium. After all this situation, in which it began more and more to depend on the uranium of others came the Fukushima accident in 2011. After this tragedy many countries, including USA, They reduced their investment in nuclear energy. Western mining companies paused operations, while Kazakhstan, with state support, Increased its production without worrying about profitability. Russia also continued to sell cheap uranium, even after the end of the disarmament agreement in 2013. Will it be self -sufficient? The orientation of Trump’s policies It seems to point towards the reactivation of its internal nuclear supply chain. Although uranium is still free of tariffs, global tension, technological advances and energy urgency are pushing the country again to look at their own subsoil. The big question is whether this rebirth will be sufficient and sustainable in the long term. Image | Pxhere and Gage Skidmore in Flickr Xataka | The uranium is listed up after the nuclear resurgence. And a company wants to start extracting it in Greenland

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