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In 1967 a war closed the Suez Canal for eight years. Half a century later, the Strait of Hormuz looks into the same abyss

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When war broke out between Egypt and Israel in 1967, fifteen commercial ships were trapped in the Suez Canal. The captains dropped anchor assuming they would only have to wait a few days for the fighting to end. They were right about the duration of hostilities: it was the Six Day War. However, It took eight years for the canal to reopen. When the ships were finally able to set sail in 1975, only two were still seaworthy. The rest had rusted so much under the desert sun that They went down in history as the “Yellow Fleet”. Almost sixty years later, history rhymes in the Persian Gulf. Ninety days after the war between the United States, Israel and Iran blocked the Strait of Hormuz at the end of February, the most important maritime passage in the world remains closed. Dozens of oil tankers wait at anchor, waiting for a diplomatic agreement that always seems imminent but never arrives. The optimism trap on Wall Street The analyst Javier Blas, in your column for Bloombergexposes the dangerous complacency with which the world is facing this closure. The financial industry operates under an adapted version of Stein’s Law: “The Strait cannot be closed forever because it would cause too much economic damage; therefore, it will reopen soon.” The problem with this logic is that the economy has not yet inflicted the pain necessary to force peace. As Blas points out: For Washington: The war is proving politically cheap. The US economy is riding with quarterly growth of more than 4% and the S&P 500 index is close to historical highs, having risen almost 10% since the start of the conflict. For Tehran: Even as the currency plummets and inflation chokes the population, the Iranian regime has demonstrated for decades an almost inexhaustible capacity to absorb economic punishment when it considers it faces an existential threat. While the mediators seek an agreement in Islamabadinertia maintains the illusion of normality. The market has absorbed the disappearance of about 20 million barrels per day thanks to accumulated inventories and massive releases of strategic reserves. Qero the global tank is emptying. June: The end of logistics inertia If we do not see shortages on the streets it is due to pure physics of transportation: a supertanker moves at the speed of a bicycle. The fuel that the West consumed in the spring left the Gulf before the first missile fell. However, the data They already show the cracks in the system. Global demand fell by 5 million barrels per day in April, the largest consumption destruction since the COVID-19 pandemic. And the blow is already felt at home: Funcas warns thatIf the conflict continues, Spanish inflation will exceed 4% and growth will fall to 1.8%. In addition, the multimillion-dollar extra cost of fuel for airlines such as Iberia or Vueling directly threatens the waterline of Spanish tourism. The real precipice has a date: June. With the arrival of summer, the peak driving season and the massive use of air conditioning will collide with inventories at multi-year lows. Furthermore, a diplomatic reopening it would not solve the physical problem: Clearing the mile-wide Hormuz safe lane would require months of complex naval operations. However, the impact of this crisis goes far beyond the gas pump. As the physical shortage of crude oil becomes undeniable, the most serious repercussions are brewing in the bowels of the global financial system: The fracture of the petrodollar: The unwritten agreement of 1974, which guaranteed security in the Gulf in exchange for crude oil being sold in dollars and reinvested in US debt, is breaking down. Countries like India They are selling their US Treasury bonds to obtain liquidity and pay for much more expensive oil. The bond market: The persistence of energy inflation has skyrocketed sovereign bond yields. 30-year Treasury bonds in the US exceeded 5.15%. The cost of real life: If government bonds yield above 5%, 30-year mortgages are inexorably approaching 7%. This translates into more expensive loans, lower business investment and a paralysis of the real estate market. As several analysts warn, undoing the economic damage from Hormuz could require an induced recession to curb borrowing costs. The bypass of the desert While the world waits, some actors have already given up on Hormuz. United Arab Emirates has accelerated urgently the construction of a gigantic pipeline that bypasses the strait, with the goal of exporting 3.5 million barrels a day directly to the Gulf of Oman by 2027. It is “prudent planning for the worst scenario,” and a clear sign that Abu Dhabi believes the waterway could remain threatened for years. Half a century ago, no one imagined that 15 ships would spend a decade rotting in the sun in Suez for a war that lasted less than a week. Today, the world assumes that the Hormuz crisis will be a temporary blip. But as the days go by, the shock absorbers wear out and the financial markets creak. The oil is simply still waiting in the sea. Image | Photo by Jens Rademacher on Unsplash Xataka | The war in the East has reached an unexpected agreement: one where the US does not discuss Iran’s missiles, bombs or uranium

Tomorrow on Prime Video, a series with a superb Nicolas Cage that is already said to be Marvel’s best proposal in years

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Nicolas Cage was about to don the Superman suit in the mid-nineties, in a Tim Burton production by Warner Bros. that was canceled when filming was already imminent. Decades later, two estimable ‘Ghost Rider’ films, an animated cameo in ‘Spider-Man: Into the Spider-Verse’ and a very brief multiversal nod in ‘The Flash’ as ​​the Superman that never was are his resume as an actor with a cape and/or mask. ‘Spider-Noir‘ comes to Prime Video this May 27 and makes us dream of an unleashed Cage who restores some dignity to the exhibition of mediocrities that superhero cinema has become. The series is not a spin-off of the Spiderverse films, although Cage voiced Spider-Man Noir in the aforementioned ‘Into the Spider-Verse’. It is based on the comics from the 2009 Marvel Noir line, which relocated the label’s classic characters to an alternate interwar universe. In this version, Cage plays Ben Reilly (not Peter Parker, as in the original comics), a private investigator who ends up becoming a superhero called The Spider. The nickname comes from the heroes who inspired Stan Lee in the creation of the publisher’s first superheroes. Prime Video has released the series in two visual formats, “Authentic Black and White” and “True-Hue Full Color”, i.e. black and white in the style of the thirties and vibrant colors and with an artificial point. It is an unusual decision that, those responsible say, is not free: neither of the two is the “main” one, both have been calibrated and designed so that they function completely and autonomously. The color one, specifically, has sought the effect of an artificially colored black and white film. ‘Spider-Noir’ enjoys a spectacular 92% on Rotten Tomatoesone of the highest scores for any property in the live-action Spider-Man franchise. It is already spoken of as one of the best series of the yearand the interpretation of Cage, lost sometimes (just sometimes) in recent years among products that do not deserve his talent, as one of the most eccentric and stimulating contributions to the MCU. In Xataka | Today the culmination of one of the most famous series in the history of Spain arrives on Prime Video in an ironic closing format

We have been looking to replace the key ingredient in cement for years. We have found the Holy Grail: basalt

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In the midst of the era of decarbonizationthe first thing that comes to mind when we think about ways to emit less CO₂ into the atmosphere is the transition to renewable energy or electric vehicles. However, we can often overlook something that sends as many CO₂ emissions into the atmosphere each year as all the cars in the world: the cement. This material is essential and, although We have been looking for a replacement for yearsa team from the University of California believes they have found the key to creating greener cement. A cement without limestone that relies on silicates. Portland cement. It is the basic material that ‘links’ our reality. This paste resulting from the mixture of water, sand and stones is very resistant and, as we say, although we have been looking for a substitute for some time, the truth is that we have not found the key. It is still a structural part of buildings, bridges, dams or tunnels and the problem is that the cement industry is estimated to represent around 4.4% of global greenhouse gas emissions. And one of the problems with this cement is limestone. It is a simple rock to refine, but it requires a lot of energy. It is not that limestone pollutes by itself, but because of the process that must be followed to process it and make it a good ingredient in cement. This limestone must be heated to more than 1,500 degrees Celsius to produce the calcium oxide necessary for the mixture and it is estimated that half of all CO₂ emissions linked to cement production are related solely to that process with limestone. Focus shift. With that in mind, Jeff Prancevic (a geologist at the University of California, Santa Barbara) and Cody Finke (of Brimstone Energy) set out to replace the elephant in the room. If Portland cement is the most used and the limestone refining process is what pollutes the most in the process, the rock had to be removed from the equation. The key? Find other rocks rich in calcium, but that are easier to refine. Basalt to the rescue. And in the study published in Nature They detail how basalt is that rock that meets what they are looking for. After carrying out different analyses, they came to the conclusion that, in theory, manufacturing cement from these calcium-rich silicates can require less than 60% of the energy needed by limestone, reducing CO₂ emissions by 80% in the process. In numbers. It is estimated that, in the refining of limestone, 600 kg per metric ton of cement of CO₂ are sent into the atmosphere, but if we use other silicates, the authors calculate that these emissions could be around 50 kg per ton. In the least conservative calculations, the proposed solution would still cut more than 25% CO₂ compared to the standard process with limestone. Another interesting point is that the processing of these other rocks has the potential to give us valuable byproducts with high iron and aluminum content that could benefit other industries. That is, the material would be used more while contaminating less. The pasta question. The problem is… the same as always. When we talk about a new lbrick from recycled plasticsof sugar bricks or of others in the shape of a ‘staple’ that do not need cement to join together, the bottom line is that the construction industry should make a radical change in its processes. It is a huge liner that cannot be swerved overnight, no matter how many benefits these new materials have. And the same thing happens here. Although it is not about creating an alternative to cement, but rather using other rocks to extract the calcium that the mixture needs, the money comes into play in two ways. The first for the basalt deposits. If the cement industry has been organized around enormous limestone deposits to optimize processes, switching to basalt would imply relocating plants or creating new supply chains that would increase both time and costs. If something works… On the other hand, the margins of the cement industry, which has been shown to be extremely conservative throughout history. There is a product that works and changing something in the chain would involve carrying out a reorganization that they may not want to undertake. There is also the fact that yes, basalt has iron and aluminum as a byproduct, but the plants would have to be conditioned to be able to treat it properly, which would mean a huge initial investment. The authors of the study themselves indicate that it is difficult for an industry that for a century has been organized around Portland cement changed its way of acting one bit, but they also point out that, precisely for this reason, they have focused on finding materials such as basalt that are abundant, with reserves to maintain the current pace of construction for thousands of years and that emit less into the atmosphere. It is obtaining calcium from a different rock and its authors call on the industry, and other researchers, to experiment with new technologies that help accelerate the decarbonization of cement. The problem is that, as we say, there are too many drawbacks that the industry itself probably does not want to take on. Image | Cemco In Xataka | Coal is back in fashion in many countries. The problem is that it is clouding the sky from the solar panels

Five years ago, they said that Volkswagen was “the new Nokia.” Today it is the leader in electric vehicles in Europe while Tesla stagnates

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The era of traditional car manufacturers is over. We have to avoid being a new Nokia It was January 2020 and we were not very aware of what was coming our way when Herbert Diess, then CEO of the Volkswagen Group, pointed to another apocalypse. Specifically, that of traditional manufacturers in the face of the emergence of the electric car. Tesla was the reference when the top leader of the German firm spoke about his own company as if it were about to fall into ostracism. Today, six years later, the Volkswagen Group sells one in four electric cars in Europe. Two other companies have already passed Tesla. And a China looms on the horizon. How we have changed. IF you want to understand how much and how the electric car has grown in Europe you just have to take a look at how was the market five years ago. In 2020the best-selling electric car was the Renault Zoe, which reached close to 100,000 units on the market. It was followed by the Tesla Model 3, which was close to 88,000 units and already had a 6% market share. By then, the Tesla Model Y, which would soon become the best-selling electric car in Europe and the world (even including combustion ones), had not yet arrived. Of the 10 best-selling electric vehicles, the Volkswagen Group had three classifieds that barely added up 9% market share. In those days, Tesla seemed like the benchmark. A brand with a single model had managed to sneak into the top 10 best-selling electric cars. The first large mass electric SUV had not arrived. And even the leaders of Volkswagen feared for the future of their own company. The new Nokia. “The era of the classic car manufacturers is over. This is probably the most difficult challenge that Volkswagen has ever faced,” said Herbert Diess in January 2020 in statements reported by Reuters. And he put the finishing touch, if Volkswagen did not advance quickly it would become “the new Nokia.” The company embarked on a launch plan to put electric cars on the market at full speed. Along the way he started a questionable plan in which it was reached develop a single platform for two cars that arrived with enormous delay. And Cariad, which should have been a company of key software development for the brand, was unable to give them software up to par. In the years to come, Tesla ate up much of the European market although its relevance plummeted since last year. In 2022 Its market share among electric vehicles remained at 13%. In 2023 shot up to 18% and in 2024 it remained at 17%. The big fall came with 2025 in which it remained at just 8%. And things aren’t looking better this year. Overcome. In the first quarter of 2026, Tesla appears to have remained somewhat stagnant as more and more companies begin to add electric vehicles to the market. The Tesla Model Y continues to lead sales and the Tesla Model 3 is the third best-selling electric car in Europe. But electric sales have skyrocketed in Europe and Elon Musk’s people are not taking full advantage. In the first quarter of the year, have been sold in the European Union 546,937 electric cars, 32% more than in the same period in 2025. And the market share now almost reaches 20%, some four points above the figures from twelve months ago. In that period, Tesla has increased its overall market share from 1.3% to 2.0% and among electrics it has risen to just above 10%. However, traditional companies are pushing hard. The Volkswagen Group, which has added the arrival of more affordable cars like the Skoda Elroq (among the three best sellers in Europe) and has renewed a large part of the fleet it already had under its own brand sales have skyrocketed. And Stellantis or Hyundai/Kia threaten to overtake Tesla. BYD is also among the best sellers in Europe. Carefully. When taking European sales data, some care must be taken and it is preferable to make readings by quarter. And Tesla continues to have an enormous dependence on registrations in the last month of each quarter. The transition from March to April is a good example of this. And, as we said, in March Tesla marked a 10% market share among electric vehicles but in April there are already records (in the absence of those from ACEA) that lThey leave you at 8.9%. These fluctuations are more than common but they show that Tesla continues to be irregular in its month-to-month growth. The same as almost always. Despite the fluctuations, the truth is that Tesla has not managed to capitalize on the increase in electric sales as expected. Elon Musk himself anticipated global sales of 20 million units impossible things that seem very difficult to achieve, if not impossible. The company has been working to put smaller and more accessible models of the Model Y and Model 3 on the market with which to face the arrival of new launches from traditional brands. That has not happened and along the way they are being eaten up by those companies that were said to be “the new Nokia.” Furthermore, they have to face the arrival of a BYD that has burst in force. The Chinese company is already among the 10 manufacturers that sell the most electric vehicles in Europe and its deployment is in full takeoff ramp. Additionally, their success with plug-in hybrids is helping them raise awareness of the brand. For example (and although their plug-in hybrids are taken into account here), in the first quarter they sold 50,646 units in Europe, compared to 18,782 units in the same period of 2025. Photo | Carter Baran and Aidan Hancock In Xataka | Tesla wanted to make 20 million cars in 2030. The reality in 2025 is that Tesla has crashed and BYD is already leading

China already has a GPU that competes with Nvidia’s RTX 3060. The bad thing is that it arrives five years late and worse

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The china crusade for achieving the complete independence in the field of semiconductors has taken a new step. The problem is that this step has not been as promising as we expected, and in fact it makes it clear that today the Asian giant is still far away of the semiconductor manufacturers that dominate the market. The alternative for gamers that promised. Lisuan Tech (砺算科技), a Chinese company dedicated to manufacturing semiconductors and solutions such as graphics cards for the end-user market, has launched its new GPU for the consumer market, the LX-7G100. The price and expectations. The official starting price is 3,299 yuan (about 420 euros at the exchange rate), and at that price the equivalent graphics card should be at least an RTX5060 Ti, which is usually below 400 euros. What we get in performance is far from that. Performance tests of the LX-7G100 typically fell well short of the RTX 3060.Source: NotebookCheck. Worse than the RTX 3060. The problem is that those who have had access to this graphics card and have evaluated their benefits They have realized that this manufacturer’s GPU is very far from that price/performance estimate. In fact, it usually competes more with the RTX 3060 of 2021, but even with it it loses: it offers approximately 65% of the performance from its rival NVIDIA. Good specifications. On paper, the LX-7G100 should offer more performance. It has a 7G106 GPU, 12 GB of GDDR6 memory and decent bandwidth, for example. However, it does not have truly mature support for DX12 and does not offer an alternative to Nvidia’s DSLL or AMD’s FSR. When used in modern games, performance plummets due to rendering glitches and code translation bottlenecks. Not even for AI. At Lisuan Tech they have also tried to bet on their ability to run local and private AI models. However, most of the development of AI projects is linked to Nvidia’s CUDA architecture. It is true that the Chinese company has its own compatibility layer to translate PyTorch and CUDA code to its native architecture, but the loss of efficiency is notable, which makes inference or local model training tasks become too slow compared to those allowed by Nvidia graphics. difficult to compete. Lisuan Technology announced the first milestones of this launch a year ago. The rumors they indicated that its G100 graphics processor is manufactured by SMIC with a 6nm photolithographic process that complies with US restrictions. An attempt was made to launch in 2023, but Lisuan had financial problems and a capital injection of $27.7 million managed to keep the project going. It remains to be seen if sales ultimately follow through, although certainly its price/performance ratio makes it attractive only to audiences like the Chinese, who may have more difficulties accessing models like the Nvidia RTX. In Xataka | The end of Nvidia in China seems to be very near: its current market share is 0%

Despite the fact that it has been losing population and readers for years, Japan does not stop opening new libraries. And it makes perfect sense

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Japan has increasingly less people (in general). And less fond of reading (in particular). Despite one or the other, for years the country has been experiencing a curious phenomenon: its library network does not stop expanding, with hundreds and hundreds of new reading positions. To be more precise, Nikkei estimates that in 2024 there will be around 3,400 libraries spread across Japan, which is equivalent to 800 more than those that operated in 1999. The big question is… Why? The great paradox. In a country with less and less people and in which the passion for reading is losing ground, the logical thing would be for libraries to close. In Japan the first and the second happen (fewer people, fewer readers), but not the third. The curious thing is that he is not only avoiding the closures of reading positions. It is increasing them. Anyone who wants to find a place to read books at no cost has it much easier today than it was 25 years ago. Reviewing the data. To understand the paradox, it is necessary to first review three pieces of information. The first is the evolution of the Japanese population. According to World Bank Group, in 2024 they will reside in the country 123.9 million peopleconsiderably less than the 128 million it reached in 2010. And the medium and long-term outlook is not much better. The latest statistics Officials reveal that, far from slowing down, the decline in the birth rate is reaching historic figures and is advancing faster than the authorities anticipated. If nothing changes, in 2050 the population will fall to about 100 million. Less people, fewer readers. That is the second key. If we talk about reading, the problem is not so much that there are fewer Japanese as that those who exist seem less and less interested in literature. In 2018 the Agency for Cultural Affairs launched a survey to find out how often their fellow citizens read. He discovered that among those over 16 years of age the percentage of those who read less than one book a month was around 40-49%. In 2023, this indicator had already risen to 62.6%. Another 27.6% said they read between one and two books a month. As if that clue wasn’t clear enough, the number of bookstores open in Japan fell about 30% in just a decade. And the surprise came. With these figures on the table, the fact that just disclosed Nikkei and with which we started this article: today in Japan there are 30% more libraries than in 2000. Of the 2,600 public centers (in the hands of municipalities and districts) in operation at the beginning of the century, there were 3,400 in 2024. In 1996 they did not even reach 2,500. Although Japan is not far from it the country with higher ratio of reading seats per inhabitant, the increase is considerable and some libraries can even boast of moving hundreds of thousands of users a year. The Tenmonkan one, inaugurated in 2022, is around 700,000 people annually, many of them young people under 30 years of age. How is it possible? The big question. And the answer is simple: in Japan the libraries are not only more numerous, they are also they are changing. They are still reading spaces where one goes in search of books or a quiet room in which to devour a novel or study, but they are also places of socialization. Something similar to community centers, only with shelves full of books. “Residents use libraries very often. Together with auditoriums and museums, they attract people and create a lively atmosphere,” points out Katsuyoshi Kinoshita, head of the Foundation for the Advancement of Libraries. The “third place”. “They are spaces where people not only read books, but can also enjoy story-telling and other events or relax in a cafe,” confirm to Nikkei Fumihiko Suzuki of the Daiwa Research Institute. This openness has turned libraries into a kind of “third place” for many Japanese, a reference space beyond their homes, jobs or schools. Access is free, you can stay there as long as you want, there are always people and they often offer alternative activities to reading: events in auditoriums or for children, historical materials, museums… They are, in short, “meeting places.” Is it something spontaneous? Not quite. As explains Sadao Uematsu, of the Japanese Library Association, the phenomenon is partly explained by the “mergers” promoted at the beginning of the century, when “many reading rooms in community centers were converted into municipal libraries.” The success achieved last decade by some projects focused precisely on reading spaces encouraged other municipalities to get on the bandwagon. In recent years the pace of library opening has slowed down, but even so the phenomenon has aroused the interest of international institutions such as the World Economic Forum, which in February dedicated it an extensive analysis that connects the ‘boom’ of libraries with another of the phenomena that mark Japanese society: aging. In a country in which those over 65 years of age represent more than 29% of the population, spaces with community activities have become a key element for the well-being of the elderly. Against this backdrop, libraries have become valuable allies. Images | Olegs Jonins (Unsplash) and Yanhao Fang (Unsplash) In Xataka | While Japan’s population is sinking irremediably, Tokyo is growing. There is an explanation: ikkyoku shūchū

Astronomers have no doubt that there is extraterrestrial life. Mathematics says that it will take 1,500 years to find it

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We have been sending signals to the cosmos for almost a century through high-power radio transmissions or even with military radars that exist around the entire planet. Little by little, humanity has been creating an electromagnetic “bubble” that expands at the speed of light, but unfortunately for some, we have not yet received a response to all these signals, and it is easy to fall into pessimism about the absence of other living beings beyond our atmosphere. The mathematics. The question here is not if we will connect with extraterrestrial intelligence, but when. And here the scientific community has great optimismsince the astronomical community is not based on UFO sightings, but on pure statistics. Here institutions like SETI They have been scanning the sky for decadesand although there is still no evidence of interference or signals of artificial origin, the conviction that we are not alone is stronger than ever. The bubble. To understand why scientists are so sure of this, you first have to look at the scale of the problem in our Milky Way, which is 100,000 light years across. This monstrous figure collides with our radio bubble that barely touches 100 light years, so on a galactic scale, we have not even crossed the street. This is where the famous Fermi paradox comes into play, which suggests that, if the universe is so vast and old, there should be someone around us, and that is why the question this researcher asked went down in history: where is everyone? The answer most supported by modern astrobiology is based on the “Mediocrity Principle”, an astronomical concept that maintains that there is nothing special about Earth and suggests that, if life arose here under certain physical and chemical conditions, it is statistically inevitable that it has arisen on a fraction of the billions of exoplanets that orbit habitable zones in our galaxy. Investigation continues. In 2016, an influential study from Cornell University put numbers to this paradox. To do this, the Drake equation was crossed with the expansion of our radio bubble with the aim of calculating how far our signal would have to travel to reach a sufficient number of stars to guarantee, by pure statistical probability, an answer. The result yielded a figure that has become a recurring reference in spatial dissemination: contact should not be expected before about 1,500 years. According to this mathematical model, for our signals to reach extraterrestrial ears requires that we cover at least half of the galaxy. Until then, it will seem like we are alone, even though the universe teems with life. Where do we look? While the 1,500-year clock continues to tick, scientists are not standing idly by, and that is why we have initiatives like SETI that they are not just looking to hear somethingbut to understand how we should listen to it. And for decades, the search for life has focused on very specific radio frequencies, highlighting the famous 1420 MHz hydrogen emission line, assuming that any advanced civilization would use that universal frequency to communicate. But… What if it’s not like that? New approaches aim to diversify the search towards broader technosignatures, since it is no longer just a matter of searching for an intentional “hello” in the form of a radio wave, but rather detecting electromagnetic pollution from other civilizations, the use of optical lasers for interplanetary communication, or even searching for signals at low-frequency radio frequencies that until now had been ignored or discarded by terrestrial interference. Images | Graham Holtshausen In Xataka | If we want to find extraterrestrial life, we already know where in space we should look: the “terminator zone”

They have measured the brain age of people who usually meditate. The result is that he looks six years younger

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The age reflected on our identity card does not always coincide with the real age of our organs. In the field of neuroscience, the “brain age” has become a fascinating biomarker to understand how our nervous system ages and what factors can protect it. And now meditation seems to have a fundamental role in delaying this clock at least during our rest hours. A new study published in the magazine Mindfulness has found that people who practice meditation At an advanced level they have a “brain age” during sleep that is almost six years lower than their chronological age. A striking fact that opens doors in the study of neuroplasticity and the role that this habit can have in the lives of many people. Although logically we must move away from the idea of ​​suffering a miraculous “rejuvenation” How it has been seen. To understand the finding, we must first understand how this “brain age” is measured, and here the researchers did not use MRIs to see the size of the brain, but instead analyzed the electrical activity through electroencephalograms (EEG) during sleep. Its evolution. Something that is known is that, as we age, the brain waves we produce when sleeping change in predictable ways. Under this pretext, algorithms have been used to calculate a “brain age index” based on these electrical patterns. With these data, if the brain produces waves typical of someone of a similar age, the index is similar to zero, but if waves are produced from someone older, the index is positive. The method. The research team evaluated 34 people who meditate at an advanced level, belonging to the discipline Inner Engineering with an average age of 38 yearsand compared their sleep records with those of several control groups who did not meditate. The result here was that people who usually meditate showed an index that corresponded to people six years younger. That is, their brains, electrically speaking and while sleeping, behaved like those of people almost six years younger, while the control groups showed values ​​close to zero or slightly positive. One more biomarker. The findings fit like one more piece in a scientific puzzle that has been years in the making. Previous research already pointed to global changes in the EEG spectrum and greater neuroplasticity, and it was even seen that regular meditation caused an increase in brain gray matter and a possible neuroprotective effect. However, from a clinical standpoint, it is critical not to confuse an EEG marker with literal rejuvenation. The fact that the brain shows younger electrical patterns at night is an excellent biological indicator of brain health, but this study does not clinically prove that meditation is a proven tool for reversing cognitive decline. You have to be cautious. In this case it cannot be categorically stated that meditating rejuvenates the brain because there may be other factors that have not been measured. We must also keep in mind that we are dealing with a study on only 34 people, so the sample should be increased with the aim of extrapolating it to the entire population. Images | Drazen Zigic in Magnific In Xataka | The best 18 meditation, relaxation and mindfulness applications to have better mental health

A meteorologist has analyzed 30 years of Spanish skies to see if you should worry about not seeing the eclipse on August 12

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Can you imagine spending a fortune on a trip? to emptied Spain to enjoy a show that will only last a couple of minutes and at the moment of truth the clouds arrive and prevent you from seeing it? That will be what will happen this summer if we are unlucky enough that the skies in the totality zones of the August 12 eclipse become cloudy. Unfortunately, until 3 or 4 days before we will not know what will happen. Weather predictions cannot be made any further in advance, what more would we like. However, you can do an analysis of what has happened in previous years, right in that place and on that date of the year. The meteorologist Benito Fuentes has been in charge of doing it and we can see the results in your X account (formerly Twitter). 30 years of observations. The meteorologist has analyzed what happened on August 12 at 8:00 p.m. in the Spanish skies over the last 30 years. Although the totality of this year’s eclipse will be reached around 8:30 p.m., the eclipse itself will start at 7:30 p.m.. That’s why he chose 8:00 p.m. The bad thing is that in your analysis you can see that in some of the points of the totality strip, half of August 12 have had too many clouds to be able to see an eclipse with peace of mind. Not all clouds are the same. The meteorologist has paid special attention to medium and low cloudssince the high ones allow the passage of light, so that it could be seen when the eclipse “turn it off”. Just a little cloudy skies. Another important fact that the meteorologist clarifies is that, due to the time at which the eclipse will take place, quite close to sunset, a few poorly positioned clouds are enough to ruin the show. It is not necessary for the skies to be completely cloudy. He has used 35% cloud cover as a threshold from which to start worrying. Not all positions are equal. Precisely also because of the time close to sunset, the clouds that would spoil the eclipse are those that are towards the west, where the sun sets. A few clouds to the west would be much worse than a completely closed sky above our heads. Don’t panic. These data are not a prediction, far from it. Just because half of the August twelfths have been problematically cloudy in the last 30 years does not mean that this year will be cloudy as well. With the predictions that can be made in the previous days, it will be possible to recalculate to a certain extent. the place to observe the eclipse. It’s not worth worrying ahead of time. That little bit of mystery and uncertainty also makes what is to come very interesting. And the good thing is that, if we can’t see it, we can always go hunting for the other two components of the Iberian trio of eclipses. Image | Magnific/NASA In Xataka | A third of Spain will be completely dark for a minute or two. The astronomical event of the century is approaching

We have been wondering for 4,500 years why the Great Pyramid of Giza resists earthquakes. Physics finally has the answer

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Throughout its more than 4,500 years of history, the Great Pyramid of Gizathe tomb of Pharaoh Cheops, has witnessed the rise and fall of empires, the erosion of the desert and also the earthquakes in an area with very intense seismic activity. This is crucial, because while the Alexandria Lighthouse or the Colossus of Rhodes succumbed to the Earth’s tremors, the 138-meter-high mass has remained immovable. The secrets Their longevity has been a topic of conversation for decades among Egyptologists, engineers and architects who tried to understand why they were still standing. And it is logical, because every physical object has a “natural frequency” of vibration, and this is crucial because when the seismic waves of an earthquake coincide with the frequency of an object, a very important amplification effect is produced. It is an effect that we can see, for example, on a swing, since we push it at the exact moment so that it goes higher and higher. And this is where the “superpower” of the Great Pyramid lies. What does it consist of? According to a study published in Scientific Reports, the pyramid and the ground on which it sits dance to completely different rhythms. This means that the pyramid has a natural vibration frequency which is around 2.3 Hz. For its part, the surrounding terrain of the Giza Plateau vibrates at a drastically lower frequency, close to 0.6 Hz. This mathematical gap is a true structural lifesaver, since, since there is no coincidence between the frequency of the stone mass and that of the ground during a seismic event, resonance is practically impossible. Waves from the earthquake pass through the area, but the pyramid does not amplify the vibration, dispelling the danger of a catastrophic collapse. It is, in modern terms, perfect passive seismic isolation behavior. Extreme geometry. This frequency decoupling is one part of the equation, since the focus is also on the impeccable architectural design and geometric of construction, which provides a uniform structural response to any mechanical stress. All this is thanks to the ingenuity of Egyptian engineers who created an artificial monolith that defies the laws of destruction through several characteristics, such as greatly lowering the center of gravity. And, unlike modern structures that are slender, in pyramids the vast majority of stones are concentrated in their lower third. This makes the building virtually impossible to overturn, regardless of the violence of the transverse shaking. More reasons. The square pyramid shape is not just an aesthetic or religious choice, but it is the most stable geometric figure that exists to withstand compression. Symmetry ensures that when seismic waves shake the building, the load and stress are distributed equally across all faces, avoiding critical fracture points. The internal chambers. One of the details that the investigation has pointed out is the unsuspected role of the famous internal chambers of the pyramidlike the King’s Chamber. Historically, they have been analyzed from a funerary perspective, but it is now suggested that, together with the impressive granite discharge blocks, they also act as a system to dissipate energy. In this way, seismic waves that manage to penetrate the structure encounter abrupt changes in the density of the matter, which causes the waves to refract and disperse. Did they do it on purpose? This is the question we can ask ourselves after reading all this, and the most plausible answer is that the Egyptians did not handle all these technical concepts, but they were absolute masters of empirical engineering. Through observation, trial, error and a deep knowledge of the materials, they arrived at the optimal solution so that they would last for life. They built for eternity based on massive stability and, in doing so, accidentally designed a building that meets the same safety parameters that we demand of our most critical infrastructure today to prevent them from collapsing in an earthquake. Images | Jeremy Bishop In Xataka | What we see in Petra is a city “carved in stone”: what it really hides is an amazing water system

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