The weird event that humanity has witnessed on average, each billion the age of the universe

Year 2019. In an underground laboratory, A kilometer and a half under the Masso del Gran Sasso in Italya dark matter detector witnessed something extraordinary: the radioactive disintegration of an atom of Xenon-124. It is the slowest process (And therefore, more rare) Never registered. They touched the cosmic lottery. The Xenon-124 has a semi-width of 1.8 × 10²² years. That is 18 followed by 21 zeros: 18,000 trillions of years. To put it into perspective, the universe has “just” about 13.8 billion years, so that the process that Italian scientists could observe in 2019 is a billion times more durable than the universe’s own age, as The researchers described it In Nature magazine. A little context. The “semi -experience” is a statistical measure similar to half -life, but specifically defines the semi -dear period of a radioactive substance. Uranium-238, for example, has a semi-width of 4.5 billion years. In the case at hand, the semi-experience tells us how long it has to pass so that half of a very large group of Xenon-124 atoms disintegrate and become another element, the teluro-124. For an individual atom, its disintegration is a purely random event. A concrete atom could disintegrate in the next second or be stable for a much greater time than its semi -experience. For a group of atoms, the semi -experience is a very reliable prediction of its collective behavior. If you had a container with a large number of Xenon-124 atoms, you would have to wait 18,000 trillions of years for half of the atoms to transform. How did they do it? With a very large container, which contained 3.2 tons of ultra -overthopuro liquid xenon. We refer to Xenon1t experiment of the National Laboratory of Gran Sassoin the center of Italy. A dark matter detector designed for the direct search for hypothetical Massive weak interaction particles (WIMP). The detector was designed with extreme sensitivity and built under a mountain to isolate it from cosmic radiation. But what he captured was not dark matter, but the whisper of an atom of Xenón-124 decomposing; transforming into Teluro-124. The weirdest event ever witnessed. It is not a hyperbole. It really was a milestone of experimental physics that we should not have seen even in a billion lives of the universe. But although the probability that an atom of Xenon-124 disintegrate in a year is practically nil, the detector contained almost 10,000 billion xenon atoms in the two tons of volume that were analyzed. With such an overwhelming amount of “lottery tickets”, the probability that at least one disintegrate during the observation period increased dramatically. During the 177 days of data collection, the team observed not one, but a total of 126 events that could later confirm how the decay of the Xenon-124, a type of radioactive disintegration allowed by the standard model of particle physics, but practically undetectable. What did they see. An atom of Xenón-124 disintegrates when its nucleus simultaneously captures two electrons of the innermost layers. This causes two protons to become neutrons, transforming the atom into Teluro-124. But the energy released is carried by two neutrinos, which escape without being detected. What the Xenon1T photomultipliers detected up to 126 times was the X-ray waterfall and omer electrons that occur when the electrons of the upper layers of the Xenon-124 fall to fill the gaps that have left the two captured electrons. This is the energy firm, the “flash” that betrays the weird event of the universe. Has it served for something? For more than it seems. Although there was no luck with dark matter, the detection showed that Xenon1T can capture an incredibly weak and rare signals, validating its design. But the measurement also provided experimental data to test and improve the theoretical models that describe the structure and stability of atomic nuclei. This observation is a general trial for an even more ambitious goal: the search for double electron catches without neutrinos. If this hypothetical process was detected, it would demonstrate that Neutrinos are their own antiparticles (What is known as Majorana particles). This would explain why the universe is made of matter and not of antimatter. Image | Lngs In Xataka | When no result is a good result: Xenon’s story and the search for dark matter

What will there be when AI ends humanity

In a mansion with a view to Golden Gate, the elite of artificial intelligence met last Sunday to discuss a disturbing issue: the end of humanity and what will come later. Among glasses (without alcohol) their around 100 attendees, among which there were philosophers, businessmen and researchers, imagined a future in which humans no longer existed, but an intelligence created by us. How should our successor be? The end of the end of the world. The event we have known through This Wired report It was called ‘Worthy Successor’ and aimed to discuss precisely about that: define a “successor to height” for when humanity no longer exists. This idea is related to the creation of a General Artificial Intelligence or AGIfor its acronym in English. A (for the moment) concept of superintelligence that would overcome the human being in all facets of knowledge, so good that, in the words of Daniel Faggella, host of the party: “You would with pleasure that she (not humanity) determines the future path of life itself.” Who attended. The first: Who is this guy and why should we listen to it? Faggella is the founder of Emerj Artificial Intelligence Research, a consulting firm and analysis of AI. In 2016 he wrote in Techcrunch On the risks of AI and is currently focused on disseminating the moral and philosophical approach, specifically the creation of this ‘Worthy Succesor’ an idea that had been hovering for a long time. According to account On LinkedInhas been contacting different relevant personalities of the industry to, two years later, to hold this meeting. At the party three papers could be heard from the hand of Ginevra DavisNew York writer, the philosopher Michael Edward Johnson and the host itself. The complete list of guests has not transcended, but Faggella presumes that founders of AI companies attended with values ​​of up to 5,000 million dollars, people from the laboratories that are investigating to create an AGI and some of the most important philosophers and thinkers in the sector. The superintelligence that will end with everything. In Faggella’s words: “The great laboratories know that AGI will probably end humanity, but do not talk about it because incentives do not allow it.” It sounds like conspiracy theory, but it is not the first to warn of something like that. A decade ago, Bill Gates told us We should fear the AI. Shortly after Musk demanded regulation To mitigate the dangers of what was to come. More recently, different AI experts signed A message that alerted the “risk of extinguishing for AI”. Openai also thought about The risks of the AGI. There is even talk that his statements about the creation of an AGI would have been The reason for the sound dismissal of Altman months later. What’s true in all this. We cannot know for sure, but we do know that most of the arguments about the IMMINENCE OF THE AGI And their risks are based on opinions and speculation, not on empirical evidence or concrete advances. For example, recent research has shown that current systems They still fail in basic reasoning taskswhich contradicts the idea of ​​a short -term superintelligence. Moreover, there are indications that The generative AI could be close to its roof. There is also no consensus among experts. There are detractors who They consider it ridiculousbut of course, it is less ‘viralizable’ than to say that AI will extinguish us. And most importantly: we cannot ignore the fact that those who make these statements are business people Like Altmanand the business is very expensive And you need to finance. Agite the loop insisting on the imminent arrival of the AGI could be a way to raise more money for its companies. What we will leave when we disappear. The central theme of the party was not so much how humanity will be extinguished (it seems that this is taken for granted), but what kind of intelligence we should create to make our successor. Attendees heard presentations that revolved around the values ​​and capabilities that this new superior intelligence should have. For Faggella, humanity has the responsibility of designing a successor that is aware and capable of evolving. The philosopher Michael Edward Johnson highlighted the remains of creating a conscious AI beyond the possible extinction: “We risk enslaving something that can suffer or trust something that cannot be trusted,” he said during his presentation. Rather than forcing AI to obey, he proposed a joint education of humans and Ias to “pursue good”, whatever that is. In short, an interesting debate from the ethical and philosophical point of viewbut with little anchor in reality. At least for the moment. Cover image | Gemini In Xataka | The secret weapon of the fashion industry in China: this startup uses AI to predict the next tendenci

It did not depend on humanity

There is still the second half of the year, but at this point we can affirm (and without fear of being wrong) that 2025 is not being easy. Commercial wars. War in Ukraine. War in Gaza. War In Iran. For not leaving us, 2025 does not even leave us the comfort to relieve penalties with chocolates or good coffee, both subject to a inflationist spiral. With everything and no matter how bad face that has 2025, something is clear: it will hardly be worse than the 536 AD, the worst year in history. Never in attractive already a bloody history of humanity has been worse to be alive. And that is something that there is enough consensus. The worst year in history? There are titles for those who do not lack applicants. And the “worst year of history” is undoubtedly a clear example. If we look back, we find a few candidates of infamous memory: 1347, when the plague epidemic (“Death megra”) began to expand through Europe; 1914, the year in which the World War I; 1918, marked by the beginning of The flu pandemic or 1939, when the world went back to war. You don’t even have to go back so back in time. In March Of 2022, WHO declared that COVID-19 had become a pandemic that, throughout the following years, would lead to entire countries to the edge of paralysis and would charge millions of lives. According to the UN, only between January of that year and late 2021 died 14.9 million people for causes related to the virus. What has been the worst then? A few years ago the magazine Science He asked that question To the historian Michael McCormickHarvard’s professor, and his response was as forceful as it is necessary: ​​the worst year to be alive was the 536 of our era. Your answer is interesting for several reasons. The first, because beyond its academic prestige, McCormik is has dedicated to study In detail what happened that infamous year of the seventh century. Second, because is not the only one That believes it. “It was the beginning of one of the worst periods to be alive, if not the worst year,” McCormik insistsat the head of the university initiative for the science of the human past in Harvard (Sohp). The most curious thing is that unlike what happened in 1914 and 1939 (when both world wars exploded) or even during the pandemics of Spanish flu and Covid-19, largely propagated thanks to people, in what happened in 536 AD Humanity played a minor role. What happened that year? A natural catastrophe that affected sunlight and temperature of much of the world. As Remember em Sciencethat summer the average values ​​in Europe 2.5ºC descendedwhich marked the beginning of the most cold decade in a period of 2,300 years. It is said that China even saw how it snowed in summer. That sudden change resulted in ruined crops, famine and testimonies that even account for the astonishment of the contemporaries. “The sun seems to have lost its usual light and has a bluish tone. We are marveling not to see the shadows of our bodies at noon and feel that the powerful vigor of its heat has weakened,” I wrote In 538, Roman senator Casodoro. Even more mysterious was the historian Procopio, who that same year He spoke From “a fearsome omen”: “The Sun emitted its light without brightness, just like the moon, all year.” And what was the cause? That the second third of the sixth century DC was unusually cold is no novelty. The experts had been suspected for a long time, and not only for testimonies such as those of Casodoro or Procopio. In the 90s the Rings studies of trees (Dendrocronology) They already suggested to the experts an unusual drop in temperatures towards the 540s. The big question is … why? The study of the polar ice cores of Greenland and Antarctica threw a fundamental clue: the phenomenon could be related to massive volcanic eruptions. When a volcano erupts, it throws large amounts of sulfur and bismuth into the atmosphere, among other particles that act as a gigantic veil that reflects sunlight, which in turn derives in less time of clarity and a decrease in temperatures. In fact, remember in Sciencethe study of glaciers and tree growth rings suggests that a good part of the most “icy” summers recorded in recent centuries have been preceded by eruptions. But what happened in 536? Years ago, researchers concluded that what happened fifteen centuries may be related to a massive eruption registered between the end of 535 or early 536 in North America and which years later (540) followed another. The wind and meteorology were responsible for making the rest and extending the particles to Europe and Asia. Over time that explanation has been profiling and In 2018 A quip directed among others by McCormick already spoke of a cataclysmic eruption recorded in Iceland in early 536 to which, throughout the following decade, another two were followed, in 540 547. It is not the only theory. There are those who speak of the effect of the dust of the comets or an unknown underwater eruption, a conclusion to which a group of experts arrived Not long ago After studying the ice of Greenland. How serious was it? Yes. Let it clear Thousands patternhistorian of the University of Oxford, in An article Posted in The conversation: “Wherever it was, the eruption precipitated a ‘volcanic winter’ of a decade in which China suffered summer snows and the average temperatures in Europe fell 2.5ºC. The crops did not prosper. People went hungry. And they rose in arms against each other.” A year and a half marked by a mysterious fog that extended in Europe, the Middle East and part of Asia and whose impact soon was aggravated by other factors. In 541 the bubonic plague arrived at the port of Pelusio and marked the beginning of the Justinian plaguedevastating for … Read more

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

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 1803 map that aspired to summarize the entire history of humanity

He 19th century It is still today one of the most fascinating periods in history. It produced numerous ideological, political and technical revolutions that forever shaped contemporary times. At the same time, he opened the doors of a world, expanding numerous discoveries, contacts between various civilizations and scientific advances. The change was structural and all levels. Hence the cartography also evolved. The dawn of modernity were plagued by graphic innovations that would give way to the cartographic crafts of our time. It was no longer simply to represent the world (after the century it would already be practically explored and uncovered in its entirety), but to locate the human being in it. Nature tamed, wasn’t it time for map To humanity itself? We have already seen how Illustrators like JH Colton either John B. Sparks They tried to do so through an innovative format: the river, a continuous current since the beginning of the times of which They would break down tributaries in the form of cultures and civilizations. Those were imaginative and prisoners of their time, plagued by a rampant Eurocentrism and full of historical and political clichés. However, they were interesting for themselves, because they aspired to capture in a single graph the passage of time. All the time. The work of both, but especially of Colton, would contribute to expand the explanation of history and social geography through graphic tools. But it wasn’t seminal. Such honor may correspond to the author of the probably first histomapa always: Friedrich StrassAustrian cartographer. Entitled Der Strom der Zeiten (The current of time), The Enlightenment would see the light as soon as 1803, time before Napoleon had raised his empire. The excellent graphic and bold finish of the representation would enjoy great success, being translated into several languages ​​and serving of remote influence for other activists, educators, geographers and illustrators (From Emma Willard until Eugene pick). Der Strom der Zeiten I drank in part of Joseph Priestly’s ideasBritish philosopher, and aspired to capture a vertical understanding of the history of human beings. Under the title of “History of the World”, part of a gray nebula of which cultures already known by then. The Greeks, the Assyrians, the Italians, the Chinese or the Phoenicians. Strass focuses your attention in European peoples and cultures, marginalizing the development or prominence of African or Asian empires. The beginning of everything. (David Rumsey Collection) Detail of the first villages. (David Rumsey Collection) The importance of the Roman Empire. (David Rumsey Collection) It was a common evil of the illustrators, intellectuals, scientists and European thinkers of the time. China and India monopolized half of the world’s population and half of its economic production for centuries. However, the Strass river quickly focuses on The Roman Empire Like the Muñidor of so many civilizations of the present, and from which numerous central states would arise to the development of Europe, such as Spain or France. Eastern cultures. (David Rumsey Collection) Latin kingdoms. (David Rumsey Collection) Taxes arise, unify and disappear as time progresses. Strass’s historical gaze was essentially elitist: he listed the monarchs and leaders based on their possessions (Felipe II and Carlos V become the longest river tributary of their time) in chronological way. To the right are felt Asian civilizations. Others, such as African or American, do not even appear. Der Strom der Zeiten It is an incomplete map of human history, but one of great relevance for the development of a different look at the passing of time and the position of the human being in it. And next to all this, it is still beautiful today. In Xataka | The way in which each European language counts up to 99, explained in an interesting map In Xataka | The lunar map of Johannes Hevelius, the first satellite cartography published in 1647

Going to space is going from a great aspiration of humanity to a “Ryanair with rockets”

When Andy Davis opened his birthday gifts that afternoon of 1995, I was about to certify One of the most important changes of the cultural imaginary of the American twentieth century: the death of Western and the consecration of the astronaut as a great aspirational figure. Because, forgive me the expression, but how astronauts were cool. We talked about people who prepared for decades, who risked their life every fighter second and who achieved feats that we, simple mortals, could not even imagine. There was nothing more glamorous and guay than to be an astronaut. Now The thing has changed. The life cycle of all means of transport. When the train was invented, first There was curiosity. Then, fear. Later, luxury. And finally, The Rodalías de Barcelona either The Extremadura train. It is a law of life: a kind of Kübless model of the social perception of the means of transport. The same thing happened with the planes. From the first test flights we move on to Spirit of Sant Luisthen to the luxurious airplanes of the 60s And, now, a manifestly bad service that we usually associate with lowcost airlines, but that affects the entire sector. In space, we are living that process and we are living it very quickly. But why? In the background, what we are seeing is the logical development of the privatization of the space race. And, as we have been pointing for years, what has been privatized now is not space. The space has been privatized for many years. What we are living is the privatization of spatial sleep. Or, in other words, what we have seen is the birth of companies that are knowing how to take advantage of space rhetoric to find financing (winning the large agencies). Behind all that space rhetoric … The new space race does not “become an interplanetary species” or take “tourists to space.” The new special career goes, for now, to finance the development of an infrastructure Very expensive, very lucrative and that will be indispensable in the future. When Jeff Bezos said that the great battle is in whom it is responsible for taking out the devices from the earth (the basic infrastructure of the new space race or, as he said, The ‘Amazon Web Services’ of space) He was right, but fell short. There is Many critical services They will depend on what happens up there. Tourism (and the ‘banalization’ of space) is key in all this. Since Dennis Tito became the first space tourist In 2001 (and counting The six of Jesús Calleja’s last trip) About 84 people have gone to space to do something we could call “tourism.” That is to say, Jesús Calleja is a symptom of that progressive banalization of space, yes; But we already had many previous examples. The key is to take the analysis one step further: in understanding that the ‘democratization’ of space trips come to replace the spatial epic of the cold war years. It is its “aggiornamento”, its contemporary version: the story that serves to continue moving the gears of the development of the space industry. That is why it makes sense that a television star goes to space, so it makes sense wanting to lower costs, so it makes sense to take many people. Because as with the lowcostthe business is another. And, in normal conditions, it would be very interesting. After all, the twentieth century has taught us that every euro invested in space It is a euro invested in improving the conditions of this planet. Historically, The return of investment is huge And that has been one of the great levers that have allowed us to continue investing in it. However, as the years go by and we see that the business career derives quickly in A power struggleit is worth asking if the transfer of knowledge will remain so effective. If, in one way or another, the privatization of space will also be the privatization of all the good we can learn from it. Image | Club of the Future In Xataka | If the space industry wants to democratize tourism, it must overcome several challenges. Like space smells good

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