matter

We had been believing that dark matter existed. A new study believes that we were wrong

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For decades, cosmology has been sustained on a pillar as fundamental as mysterious: The dark matter. The invisible glue that, according to the standard model, keeps galaxies together and prevents the stars from being fired by centrifugal force.Represents 27% of the universebut it has a problem: nobody has seen or detected it. It only trusts that it will be there. But now A published study in Galaxies This conception of the concept has changed. The study. Research led by the physicist Rajendra P. Gupta From the University of Ottawa proposes an idea as elegant as radical: what if dark matter does not really exist? According to his work, this ghost component could actually be an ‘illusion’, a side effect caused by something we were assumed: that the fundamental constants of nature are ‘constant’. The importance. To understand the magnitude of this proposal you must first remember the origin of the problem. Specifically, we have to go to the 70s, where astronomer Vera Rubin noticed that the stars at the edges of the galaxies revolved at the same speed those of the center. This completely challenged Newton’s laws, something that is as if a person sitting on the outer edge spinning at the same speed as a sitting near the axis. Physically, it should be triggered. The solution that the scientific community adopted was the existence of a “dark matter”, an invisible mass that generates the extra gravity necessary to maintain cohesive galaxy. This concept became the cornerstone of the cosmological model known as ΛCDM (Lamda-Cold Dark Matter). This model works incredibly well to explain the large -scale universe, but after searches with ultrasensitive detectors and experiments in the LHC We have not found a single particle of dark matter. It has always ‘detected’ indirectly through its gravitational effect on visible objects. The proposal. This is where Gupta’s idea enters. Its model, called CCC + TL (Covarying Couplening Constants + Tirad Light), is based on two different ideas. The first one is the so -called ‘Covriant coupling constants’ (CCC). In this case, the model suggests that the fundamental constants of physics, such as the speed of light (c) or the universal gravitation constant (G), are not fixed. Instead, they evolve and change as the universe expands. This is not a completely new idea (the physicist Paul Dirac already flirted with her), but Gupta integrates it into a complete cosmological model. The second idea raised in the investigation is that of ‘tired light’. A concept that arrives directly from the old hypothesis of ‘tired light’, which postulates that light loses energy throughout its trip through the cosmos. In this case, the Gupta model suggests that the redness of the light of the distant galaxies is not only due to the expansion of the universe but to a combination of both effects. Although the “tired light” as the only explanation, has been widely refuted, its inclusion in this hybrid model is key to its calculations. New terms. Once these two new ideas are taken into account, it is time to modify Einstein’s field equations with these variable constants, the GUPTA model makes new mathematical terms appear. This is something that the author has baptized as “α-material” and “α-energy.” And this is where it is true magic: these terms, which are not a physical substance but an effect of the evolution of the laws of physics, generate the extra gravitational attraction that until now we attributed to dark matter. Dark matter would not be something to find, but a mathematical mirage. It is tested. Something to keep in mind is that theories can be very well written and look very good on paper, but logically they have to demonstrate. For this, Gupta used the SPARC database, a high quality catalog with the rotation curves of 175 galaxies. The method used was the reverse to the traditional. Instead of adding dark matter to justify rotation curves, Gupta took the curves observed and used its model to “subtract” the effect of “α-material”. The result should be the rotation curve generated only by visible (barionic) matter. Something that has wanted to materialize in a graphic taking as an example the NGC3198 galaxy. In this image, the blue line (VO) is the rotation speed observed in the galaxy. The points line (VB) is the speed that should have if only the visible matter existed, according to the estimates of SPARC and the discontinuous line (VBX) is the prediction of visible matter calculated by the GUPTA model. The similarity between the prediction of its model and the estimation of barionic matter is remarkable. Something that the author repeated for several galaxies with promising results to give a very forceful conclusion. A new paradigm. If the CCC+TL model is correct, its implications are huge. Not only would it eliminate the need for dark matter, but, according to the author, it could also explain dark energy and other cosmological enigmas, such as why the first galaxies Observed by James Webb They seem more mature than they should. You have to be cautious. This is, for now, a “proof of concept” as the author himself points out. This means that it is using simplifications, such as treating galaxies as perfect spheres, something that is far from reality in the universe. In addition, its dependence on “tired light” is a friction point with conventional cosmology. Models such as this should demonstrate that they can explain with the same precision as λCDM Key observations such as microwave background radiation or the accelerated expansion of the universe. A new advance. But what is clear with this research is that the scientific community is exploring alternatives, especially when the predominant model presents fissures, such as the absence of a direct proof of dark matter. The Gupta model is, for now, a fascinating possibility. A reminder that in science, the most entrenched truths can be questioned and that the solution to the greatest mysteries of the universe might not be to find something new, but in … Read more

Apple has succumbed to what was resisted for years: megapixels do matter

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Apple has already celebrated the traditional Keynote to present your devices For the coming months. He has renewed his three Apple Watch families (with the Series 11, SE 3 and the Ultra 3), but we also have some Airpods pro 3 that began to be necessary. The main course, as usual, are the mobiles and we already have on the table the iPhone 17he iPhone 17 Pro and the iPhone Air that arrives to compete the curious Superdelgados playground. Much of what is presented is conservative, but we had something very curious that does not usually happen with those of Cupertino: They have marcheds. Twice, in addition, and with two decisions that concern a single model: the iPhone 17 Pro. The first is rectifying with the materials, passing the glass and the titanium to aluminum, being a Better material to solve a problem that the iPhone have been dragging for years. The second has to do with the megapixels of the Telefoto camera. Because for years Each new iPhone defended that the telephoto only had 12 megapixelsnow they take chest with a new 48 megapixel sensor. And with an optical zoom that is 4x instead of 5x of the last generations. The 48 megapixels of the iPhone 17 Pro Telefoto When the rest of the mobile industry He embarked on a race to conquer the megapixels (24, 48, 64 megapixels that strengthened in the mid -range, 108 and even 200 megapixels), There were a few companies that remained faithful to their philosophy: Google and Apple. Not directly, but implicit in their presentations, both defended that the 12 megapixels allowed sensors with pixels of a larger size, improving the capture of light and, at the same time, allowing computational photography to be carried out with agility (without long waiting times in the process) and with files of a contained size. Because climbing megapixels has a weight in the result: The same is not processed A photo at 12 mpx than one at 50 MPX and, the smaller the pixel of a sensor, the more megapixels, but less light “catch” and there are worst results with high lights and with shadows, for example. But the day arrived: Google went up to 50 megapixels with the Pixel 6 Pro and Apple did the same reaching the 48 megapixels with the iPhone 14 Pro. The approach of both has gone very hand, using those extra megapixels to make available to the user A 2X digital zoom which is a sensor cut. This has been called for years “zoom with optical quality”, not “optical zoom” because the software uses the main camera as hardware, but virtually cut the sensor to make that 2x increase. Quality is, in many cases, indistinguishable to that of a photo taken with a 2x optical. It would be necessary to talk that the focal distance of a 2x optical offers a different perspective, but in terms of image quality, those 2x of iPhone and Pixel are excellent. However, while the rest of the competition mounted sensors with more megapixels in all its cameras, Apple kept the telephoto anchored in the 12 megapixels. And so since they premiered it in the iPhone 7 Pluswhich is said soon. Telefoto sensors were being more and larger, yes, but the resolution did not change and that had a price: the digital zoom of the iPhone from the optical zoom of each generation (2x for years, but later 3x and 5x) It was far behind the rest of the industry. With increasingly present and mobile computational photography with an increasingly clear zoom thanks to that hardware mixture (lenses + megapixels) and software, Apple was staying behind. Until now. Finally, those of Cupertino have taken a step forward with three cameras with 48 megapixels. Thus, photos can be taken at full resolution or use the factory resolution (12 megapixels, but with larger virtual pixels to improve photography exposure and control size), but above all, allow a higher quality digital zoom. With the iPhone 17 Pro, Apple states that It is “how to have eight professional goals in your pocket” And, far from the brave marketing, they are part of reason. The iPhone 17 Pro has three cameras: Wide angle or 0.5x Main or 1x 4x Telefoto But, with different clippings of the sensor and the macro mode using the wide angle, we get 1.2x, 1.5x and 2x “hybrids” and one step further: an 8x that will be the one that applies the same formula as the 2x a couple of years ago: a cutting of the 48 megapixel sensor of the telephoto. In addition, it is a sensor 56% larger than the previous one, so photodiodes will also have an adequate size. On paper, It is more user versatilityand about practice is good news. It is true that the word “digital” has a tremendously negative connotation when we talk about the zoom due both to what the digital cameras did years ago and to the digital results of the mobile themselves, but with those clippings of the sensor that are achieved using large sensors And with a lot of megapixels, the thing changes. Photos with the 3X optical honor Magic V5 and with the 10x “hybrid”. Quality is brutal | Photo: Xataka It is Apple surrendering to evidence And, although we have to wait for the analysis of the iPhone 17 Pro to test these cameras, examples such as those seen with the Honor Magic V5he Pixel 10 Pro or the Samsung Galaxy S25 UltraThey allow us to excite ourselves with that 8x “of optical quality.” Now, there are those who can see it as a step back with respect to the 5x optical of the iPhone 16 Pro and iPhone 15 pro maxbut from my experience with the 2x hybrid of the iPhone (even of the 16 base), I think it is a movement in the right direction. And it is also about to see how the strictly digital zoom behaves beyond that 8x … Read more

Sending an email to a low employee has cost 1,500 euros to a company: it doesn’t matter if you respond or not

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The Superior Court of Xustiza de Galicia (TSXG) has marked a before and after in the protection of the right to digital disconnection of workers in Spain. For the first time, a company has been convicted of sending electronic jobs to an employee who was on a medical leave. The sentence is considered a pioneer because, although other countries Like France and BelgiumThey have already legislated on digital disconnectionGalician justice has taken another step by sanctioning not only the obligation not to respond, but also the duty of the company of Do not send communications Out of working hours. What happened? According to details the sentencethe affected worker was in a situation of temporary disability due to an “anxiety disorder”, apparently “motivated by the emotional wear that implies the current situation of excess work, realization of overtime continuously and labor responsibility, which has led to the appearance of relational insecurity with respect to their environment.” In that context of medical disabilitythe employee continued to receive electronic emails related to her work during the entire low period. The company recognized the facts, but argued that the emails to the complainant were part of a thread created above and whose content was aimed at other people of the team. In addition, he claimed that they were not asked for “an immediate response.” In Xataka 40,000 euros for a croquette: Mercadona dismissed an employee for eating a croquette and must now compensate him The TSXG got serious with disconnection. In its resolution, the Superior Court dismissed the company’s arguments and was overwhelming in its ruling. The magistrates considered that the company not only breached their duty to refrain from communicating with the worker during his temporary disability, but also attempted against his moral integrity. According to the sentence, the Right to digital disconnection “It demands that communications from the company are not received outside the work time”, and warns that “that right is not fulfilled due to the fact that the working person does not have the duty to respond to the communications received outside the work time more or less immediately.” That is, and here the Importance of this resolutionthat the right to digital disconnection does not only refer to the interpretation of the urgency of the communications received, but “carries with it an obligation by the employer, and of dependent or linked persons, of abstention in the communications of labor order or linked to the provision of services outside the working time.” In Xataka Some employees sued their company for cutting the salary. The supreme has responded that being unpunctual is not a job Vulnerability situation. The TSXG highlights the special importance of the right to digital disconnection when the worker is in a situation of temporary disability by A psychic ailment. In the sentence, the Galician Court emphasizes that emails in these circumstances “uneasy the receiver, and also reifted it and undermined their dignity” and places the worker in a state of permanent availability incompatible with her right to recover without pressures. The right to digital disconnection in Spanish law. The right to digital disconnection is included in article 88 of the Organic Law 3/2018 and reinforced with the arrival of the call Distance Labor Law of 2021. According to the regulations, “all workers and public employees will have the right to digital disconnection in order to guarantee, outside the legal or conventionally established work time, respect for their rest time, permits and vacations, as well as their personal and family intimacy.” This right allows workers not to answer mails, calls, video calls or any other digital communication out of work hours. The law does not differentiate between the size of the workforce or the public or private nature of the company, so the protection is universal for all employees in Spain. With the TSXG ruling, the prohibition is not limited to the fact of “not answering” but its interpretation is expanded to “not receive.” {“Videid”: “X919SE0”, “Autoplay”: False, “Title”: “The AI ​​and the future of our work Silvia Rivela | 100 years, 100 visions Ep.3”, “Tag”: “”, “Duration”: “2630”} Symbolic condemnation, but pioneer. The process reached the TSXG as a result of a previous sentence in which, in addition to the violation of the right to digital disconnection of workers, compensation for violations of the right to honor and physical integrity were requested. In this case, the new resolution revokes these last two concepts because it has not been damaged physically or its honorability has been affected. However, it imposes compensation of 1,500 euros “for damages” for violating the right to digital disconnection because the company “was not guaranteed” of this right and points out that “pretending that it is available at any time of its life, including temporary disability, prevents the free development of personality and hinders the exercise of the field of intimacy of personal life of personal life.” In Xataka | 55,245 euros for eating a sandwich and a beer: Mercadona must compensate an employee for unfair dismissal Image | Unspash (Brian J. Tromp), Wikimedia Commons (Caronio) (Function () {Window._js_modules = Window._js_modules || {}; var headelement = document.getelegsbytagname (‘head’) (0); if (_js_modules.instagram) {var instagramscript = Document.Createlement (‘script’); }}) (); – The news Sending an email to a low employee has cost 1,500 euros to a company: it doesn’t matter if you respond or not It was originally posted in Xataka by Rubén Andrés .

We have found the matter that was missing in the universe. I was hidden in the filaments of the cosmic network

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Where is the dark matter is one of the great mysteries of the cosmos, but if someone thought we had all the barionic matter (the “conventional” matter) in the cosmos … it was wrong. At least until now. What was missing. A new study He has found in the cosmic network the barionic matter that remained hidden and that would represent about half of the “conventional” matter of the universe (matter which in turn only represents about 15% of the total matter). He has achieved it thanks to rapid radio (FRB) bursts, mysterious radio wave bursts that run the cosmos occasionally and have served to “illuminate” the subject of this intergalactic network. A network of “highways” in space. The cosmic network is a series of filaments of enormous size located in the intergalactic space in which a good part of the subject of the universe is distributed. These filaments are stretched clouds of gas and particles whose characteristics We discover little by little. Recent studies had documented the existence of this elusive network. The fact that the gas and particles that compose it are inert and do not give off light made their observation very difficult, which required hundreds of hours of dedication by powerful telescopes like VLT (Vary Large Telescope) of the European Observatory Austral (ESO). DSA-110. For study, the team had to build its own observatory in the California desert, in DSA (Deep synoptic array) -110. The name DSA-110 refers to the fact that this is a telescope composed of a network of 110 antennas. FRB The new Observatory was responsible for the detection of 39 of the 69 FRB thanks to which the deccovement was possible. These bursts are intense intriguing radio signals that we occasionally receive from the cosmos. We do not know exactly its cause or causes, but we suspect that they can be caused by supernovae or similar events. Some of these frb are repeated periodically while others are punctual; The origin of some can be located in a concrete galaxy, that of others does not. The frb used in the study They had their origin at points located at distances between 11.74 million light years and 9,100 million light years. This last distance, marked by the event FRB 20230521B, now marks a record: that of the most distant gust detected. Illuminating the highway. According to Explain the team itself Responsible for the study, the FRB “shine through the fog of the intergalactic medium.” When studying how this light stops when you meet matter, it is possible to measure this mist. When crossing the filaments, the frb light also separates in different wavelengths, such as when we see that a white light breaks down when crossing a prism, generating an rainbow. The measure to which the light decomposes also offers key information about the medium that is going through. The details of the study were published In an article In the magazine Nature Astronomy. Halos or networks. So far the cosmological models indicated that there was more barionic matter in the universe than we were able to observe. The new estimate of the mass of the huge filaments of the cosmic network allows us to fill in these holes. The new estimate indicates that 76% of the conventional matter of the cosmos is in the intergalactic environment, while 15% would be in the “halos” of the galaxies, while the rest, about 9% of this matter, would be the subject of which the interior of the galaxies is composed: planet stars and everything that lives are already vast cosmic structures. In Xataka | Dark matter has been one of the most fascinating mysteries of physics for years. Now we have a new theory Image | Vikram Ravi/Caltech/Ovro / Jack Madden, Illustristng, Ralf Konietzka, Liam Connor/CFA

We have a new explanation for dark matter. We have found it in superconductivity

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Dark matter remains one of the great mysteries that intrigue astrophysicists around the world. The existence of this matter is assumed by the generally accepted cosmological models, but when determining the nature of the elusive matter we only have more or less founded conjectures and speculation. A new explanation. A group of researchers has proposed a new mathematical model which offers an explanation of the nature and origin of dark matter. The origin of this matter would be in the Big Bangas a consequence of the collision of high -energy and no mass particles, which would have won a great mass after their union. “Dark matter began its life as relativistic particles with hardly any mass, almost like light,” pointed in a press release Robert Caldwell, co -author of the study. “It is totally antithetical about what is usually believed to be dark matter (…). Our theory tries to explain how it was light to become masses.” Perhaps the most important detail in this work is that the theory postulated by this team can be tested thanks to the cosmic microwave background (CMB). The dark matter. The Dark matter It is the proposed explanation to explain a series of anomalies observed in the movement of the great objects of the observable universe as galactic galaxies and clusters. If we analyze their movements and compare them with the models used to describe them, such as the theory of relativity, we encounter that something does not match. Something seems to be pulling the matter. The dark matter would be different from the conventional or barionic in the fact that it would not interact with the rest of known physical particles except in one way: through gravity. That is why it would be so elusive despite the fact that its gravitational influence is still apparent. According to estimates, dark matter represents 85% of the matter of the universe. Return to Big Bang. The new proposed hypothesis Point out that fast particles, similar to photons, were the ones that dominated the universe after the “burst” of the big Bang. However, in that initial “chaos”, these particles would have joined in pairs. As postulate, the spin, one of the properties of the subatomic particles, would have exerted magnet among these particles: as if it were objects with opposite poles, the opposite spins of the particles would have caused the fusion. The hypothesis also proposes that, when these particles are cooling over time, the “imbalance in its spins” would have caused a drastic reduction in its energy, resulting in cold and heavy particles, dark matter. The “inspiration” for this model would have come from an analogous phenomenon seen in electrons, in the Cooper’s pairs, which allows electrical conduction without resistance, superconductivity. The details of the study were published In an article In the magazine Physical Review Letters. Putting the theory to the test. One of the great strengths of this hypothesis is that it is possible to test it. The key is that, according to the model, this “non -relativistic mass condensate” would decide faster than the standard scenario predicts. Explains the team that this prediction can be tested thanks to the cosmic microwave background, a type of radiation remnant Big Bang. In Xataka | The Euclid European telescope is already historical: its first data revalidates Einstein and put the dark matter on the map Image | A. Schaller (STSCI)

Loneliness is already a matter of public health. We have more and more evidence that animals help us to placate it

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In recent years, we have seen how loneliness has become a problem with numerous ramifications, including toilets. The “male solitude epidemic” is one of the faces that has given more to talk, but loneliness also affects other sectors of the population. And small details can help, if not to solve it, perhaps at least to relieve it. Pets. Domestic animals They can help To placate the feelings of loneliness, as a new study has observed. Interestingly, the study key is not in the company that they could offer, in themselves, these animals, but in their ability to boost and facilitate social interactions between people. The work was done in Australia and focused on two groups notoriously susceptible to this problem: older people and international students. The team found that animals could be useful to facilitate the interactions between these two groups, improving the well -being and health of both. “We find that older adults and international students experienced a significant decrease in feelings of loneliness and a significant increase in their health. The presence of living pets in particular helped break the ice and facilitated conversations between participants,” stood out in a press release Em Bould, co -author of the study. The cost of a silent epidemic. The loneliness It can impact us In different ways, not only in our well -being, but also in our physical and mental health. Loneliness can accelerate our cognitive deterioration and has also been linked to lower life expectancy. Pilot project. The study was based on a pilot project in which 30 elderly people participated in different residences of the Australian state of Victoria, as well as 11 international students. For 18 weeks, participants held periodic meetings, of one hour every week, in which various leisure activities linked to animals were carried out. There were also animals, and robotic versions of these. Some of the participants in the pilot project (six older people and 10 students) also participated in the evaluation of the program and subsequent study. These participants completed several surveys and also participated in a semi -structured survey. Measuring loneliness. Measuring loneliness is not simple, but there are some tools dedicated to this, such as the scale of the University of California in Los Angeles (UCLA), the one used in this analysis. The team also evaluated the health status of the participants, through an instrument of 5 dimensions-Europe. The evaluation was positive in both dimensions. The team responsible for this observed both a decrease in the sunny index and an ascent in the health index. The details of the study were published in an article in the magazine Complementary Therapies in Clinical Practice. Fight loneliness. The fact that in an era that stands out for advances in communication technologies La Soledad has acquired such dimensions is a sad irony. However, the important weight that loneliness can mean about our State forces us to take the problem very seriously. In Xataka | A good way to end loneliness in cities: plant more trees Image | / Alec Favale

We have found a “dark matter bridge” thanks to its predictions

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Optical telescopes are instruments that allow us to see very distant objects thanks to the combination of lenses, objects that, through refraction, modify the path of light allowing us, among other things, to see objects unimaginably distant. However, there are other types of lenses that astronomers have used for a few years, gravitational lenses. An intergalactic “bridge”. Thanks to these lenses, a group of researchers He has discovered The remnants of an object that collided in the past with the galactic cluster of Perseus. Some remnants that have finally been detected thanks to the elusive dark matter. A resolved mystery. He Perseus cluster It is a group of galaxies located about 240 million light years from Earth. These clusters are formed from very high energy mergers, events that are among the most intense from the big Bang. Thanks to these mergers, Perseus has been accumulating An equivalent mass 600 billion the mass of our sun (or the equivalent to several hundred times the mass of our galaxy). Until now we believed that mergers were a thing of the past in this cluster, which was already in a kind of stable balance. However, more recent and detailed observations had shown clues of recent collisions that implied that Perseus He was not in the stability situation we thought. The mystery now, was to determine which object had recently collided with this Cluster And why we were not able to detect it. Now, it seems that we have resolved this enigma. Using lenses, otherwise. All thanks to the phenomenon we know as gravitational lens. This phenomenon, predicted by physicist Albert Einstein, is caused by gravity. This, far from “throwing” an object. It is common for astronomers to use this phenomenon as if it were an additional lens in a telescope, allowing to see beyond what in principle would be possible. In this new study, logic It has been the opposite: Use the bottom galaxies, to detect the lens, in this case, the one formed by dark matter. Display Dark matter bridge. Thus they found a huge cluster of dark matter, of an approximate mass of 200 billion solar masses and located around 1.4 million light years of the accumulation of Perseus. Between both structures a structure is extended that connects them, a “dark matter bridge” that the team considers direct evidence of the last collision. The collision would have occurred, according to team estimates, about 5,000 million years ago. “This is the piece that was missing and we were looking for,” James Jee, co -author of the study, stood out in a press release. From the Subaru telescope. The finding was made thanks to the observations made by the Subaru telescope of the National Astronomical Observatory of Japan, located in Mauna Kea, Hawaii. Specifically, the team resorted to the Sprime-Cam instrument of this 8.2 meter telescope. The details of the study were published In an article In the magazine Nature Astronomy. But is dark matter? Dark matter is one of the most popular enigmas of contemporary astrophysics. The generally accepted cosmological models are based on the existence of a “something” that interacts with “conventional” matter and energy through gravity. Dark matter is the name we give to what would otherwise be anomalies in astronomical observations. Still From the assumption about what There is this “something” And we are not, for example, using erroneous models, the nature of this matter remains one of the great mysteries of the cosmos. In Xataka | One of the objectives of the Webb Space Telescope was to look for signs of life on other planets. He just found them Image | Hyeonghan et al.

It was a matter of time for others to imitate OpenAi

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Artificial intelligence companies are making clear a message: accessing the most advanced functions of their chatbots requires paying, and increasingly. It is not a completely new something, but now they begin to appear subscription plans with three -digit prices. At the end of 2024, Openai surprised with Chatgpt Proa modality of 200 dollars a month focused on professional users. It was an important leap compared to the Plus Plan of 20 dollars. Now is Anthropic’s turn, which has launched its own premium proposal for Claude: We are talking about the Max Plan. Claude Max: More use, more expensive. Anthropic, founded by former OpenAI members, offers two variants of the Max Plan. The first costs $ 100 per month (about 90 euros plus VAT) and multiplies the use available in the 20 dollars for five. The second elevates the commitment to $ 200 per month (180 euros plus VAT), with twenty times more use than the basic plan. Both options are already available for those who need a capacity to use much greater than the standard. What does Anthropic offer in front of Openai? Both the 100 and 200 dollars plan give priority access to new functions and models, but with an important difference with respect to OpenAI. While Chatgpt Pro boasts of unlimited use, Claude Max imposes limits. They are quite generous, but they are there. Is the AI ​​price uploading? Artificial intelligence progresses fast and companies are taking advantage of that evolution to launch increasingly expensive plans with premium functions. Scott White, Product Manager of Anthropic, has already dropped in an interview with TechCrunch that could launch even more expensive subscriptions in the future. A career expensive towards profitability Startups such as Openai or Anthropic are not yet profitable. OpenAi has marked 2029 as a goal, According to The Information. Anthropic, meanwhile, continues to increase its income while trying not to be left behind. Along the way, he continues to burn resources as if there were no tomorrow. Startups has some notable advantages, such as the ability to assume high levels of risk and, above all, move very fast. Google or Microsoft, meanwhile, do not have these advantages, but their strength is in a financial support that allows them to move forward even if some of their most ambitious projects fail. Images | Anthropic In Xataka | OpenAi has broken his roof. Its pro plan is a jump to ultra -chair that makes all the meaning of the world In Xataka | The Ghibli paradox: the most viral success of AI is at the same time a symptom of its problems as a daily product

The US suspects that Nvidia chips are arriving in China through Malaysia: it has decided to take action on the matter

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The United States and China fight an increasingly aggressive commercial war. In this pulse, both have imposed export controls to protect strategic sectors. Washington focuses on the most advanced chips, While Beijin responds with critical minerals restrictions. They seem firm measures, but everything indicates that they are not being fulfilled to the letter. Chinese is avoiding restrictions. At the beginning of last year we learned that the popular liberation army He had managed to do with the most powerful NVIDIA GPUs, among which were the GPU A100 and H100. This was particularly relevant because the export of these products is prohibited by the US Department of Commerce. {“Videid”: “X8WLH9Q”, “Autoplay”: False, “Title”: “United States vs. China: The chips war”, “Tag”: “Webedia-prod”, “Duration”: “1611”} And they were not only the Chinese armed forces: also universities and research centers controlled by the government were using prohibited products. Washington believes that this has been possible by different ways, but concluded that the main channel were intermediary countries that collaborate with the Asian giant. First Singapore, now Malaysia. As The Economist points out, Singapore was one Of the countries that raised suspicions, simply because the figures did not square. In the last quarter of 2023, Nvidia multiplied by five shipments to customers in Singapore compared to the same period of the previous year, which suggested a possible detour to Chinese users. HGX H200, one of Nvidia’s most advanced products Now the focus is in Malaysia. According to Financial TimesThe United States suspects that many of the Nvidia chips enter the country end up in Chinese hands, avoiding current commercial restrictions. Given this scenario, Washington has begun to press the Malaysian government to control the trail of these latest generation chips. Tracking shipments is not so easy. The Minister of Commerce, Tengku Zafrul Aziz, has taken note of the requirement of the US and, he explains, has formed an interministerial working group to collaborate. However, he warns, that tracing chips shipments along the supply chain is not as simple as it seems and that it is a broad effort. Malaysia has become One of the great world epicenters of data centers, which explains the massive arrival of chips for the facilities that support companies such as Microsoft or Bytedance, the Tiktok matrix. According to Aziz, Washington is also promoting internal measures to reinforce control over the supply chain. In Xataka The general director of AMD is in China with one purpose: to snatch the AI ​​market to NVIDIA Waiting for results. For now, it remains to be seen if the pressure of the North American country will take effect. Malaysia has reasons to cooperate: a commercial retaliation could put its flourishing data centers at risk. Fulfill could simply be a way to protect your strategic position on the global technological map. The US does not want to give the arm to twist. The United States is doing everything possible to limit China’s access to avant -garde chips, mainly because of the Dual use risk: civil technologies that can also be applied in the military field. The concern is that these advances end up reinforcing the defensive and offensive abilities of the Chinese army. Images | Nvidia + Photoshop In Xataka | China and Russia are squeezing better than anyone the Nvidia GPUs thanks to a material need: they are vetoed (Function () {Window._js_modules = Window._js_modules || {}; var headelement = document.getelegsbytagname (‘head’) (0); if (_js_modules.instagram) {var instagramscript = Document.Createlement (‘script’); }}) (); – The news The US suspects that Nvidia chips are arriving in China through Malaysia: it has decided to take action on the matter It was originally posted in Xataka by Javier Marquez .

His first data revalidates Einstein and put the dark matter on the map

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The Euclid telescope, launched in 2023 by the European Space Agency, has finished overwhelming its first great task. Designed to make a map in detail of the universe To help us understand dark matter and energy, Euclid has been analyzing three regions of heaven from point L2 of Lagrange. Despite being just the First mission data setwhich will extend at least until 2030, the European space telescope has already detected 26 million galaxies, some of which are 10.5 billion light years. Now the team, aided by volunteers and learning algorithms for reinforcement, has begun to publish the most complete and detailed map of the distribution of objects of the universe, which includes huge clusters of galaxies, bright quasars fed by supermassive black holes and gravitational lenses that divert the light of farthest objects. A first look at the Cosmic Network A deep field image of the Euclid space telescope Galaxies are not randomly distributed. They form a structure called Cosmic Network, similar to a web, whose filaments are made of ordinary matter and dark matter. Dark matter does not emit light, but affects the way galaxies are formed and evolved. Euclid accurately measures the shape, size and distance of galaxies to understand how the cosmic network is organized. He map that is makingwhose first three pieces have just completed, will be key to finding out what dark matter and dark energy are really. We know that dark matter exists because it gravitationally affects galaxies (it turns them faster than expected). And we know that there is a dark energy responsible for accelerating the universe. But they are a mystery. Different types of galaxies classified by human volunteers and the AI ​​of ESA Since its deployment, Euclid has sent 100 GB of data daily. It is impossible to manually classify each image, so scientists resorted to artificial intelligence and citizen science to classify 380,000 galaxies. 10,000 human volunteers collaborate in galaxyzoo.org To teach a so -called Zoobot to identify the different forms of galaxies. The volunteers classify the objects (“spirals”, “with arms”) and their responses are used to reset the AI ​​or readjust the accuracy of the algorithm. 5,000 strong gravitational lenses Gravitational lenses detected by Euclid One of the aspects that most excite scientists in the first Euclid data set are gravitational lenses. Euclid has already detected about 5,000 possible strong gravitational lenses, very rare objects that form obvious visual effects, such as arches or Einstein rings. These curvatures of space-time, predicted by the theory of general relativity, allow to observe distant objects that would otherwise be invisible, helping to understand how dark matter is distributed. It is expected that at the end of the mission, Euclid has identified about 100,000 strong lenses, multiplying the amount we currently know. Questions to solve The Euclid space telescope had a complicated deployment due to the accumulation of ice in its lens, but the ESA engineers managed to solve any setback. The results published today demonstrate the very high sensitivity of the telescope. During the next few years, Euclid will observe between 30 and 50 times these regions of the cosmos, accumulating more and more information and discovering new galaxies and phenomena. Added to the observations of the newly released NASA Spherex Telescopethe information we will have of the universe will increase exponentially. With the most detailed map of the universe, scientists will try to understand the nature of dark matter and dark energy, which make up 95% of the universe, and how they relate to each other, while solving other transcendental questions: what is the structure and history of the cosmic network? How has the expansion of the universe changed over time? Is the theory of the gravity of Einstein complete, or does it need large -scale modifications? Images | THAT In Xataka | 110 years later, Einstein continues to win bets: the Euclid telescope has discovered a ring in space-time

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