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Tenerife has recorded more than 1,600 earthquakes in two days. Volcano experts keep saying the same thing: tranquility

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During the night of Wednesday, July 22, to Thursday, July 23, Tenerife trembled due to the effect of hundreds of small earthquakes. In a few hours, the automatic detectors captured more than 500 earthquakes, although manually, under review by seismologists, the figure was reduced to 100. In total, since then, around 1,500 very low magnitude earthquakes have been reported, many of them hybrid. This means that they are produced both by the breakdown of rock and by the underground movement of fluids. In volcanic territories, such as Tenerife, this is especially worrying, since this fluid could be the magma of a volcano awakening from its slumber. Even so, experts call for calm. Earthquake swarms They are normal in these areas and would have to be more intense to really represent the preamble to an eruption. It is something that, according to what they say from The Countryalready happened in 2004, but even then it turned out to be a false alarm. 750 small earthquakes. The majority of earthquakes in this swarm of Tenerife earthquakes have a magnitude of between 1 and 2. This is a very low intensity to cause concern to the population. Although there were some before and have continued to happen after, most of these tremors took place between 2 and 5 in the morning, at depths of 10 to 15 kilometers. Yes, it could be due to the movement of magma, as has happened with other recent swarms. Since February, about 10 similar episodes have been recorded. In all cases they have been hybrid earthquakes, but of low magnitude. Some have been slightly more intense than these and still nothing has happened. That is the reason why there is a call for calm. Active, inactive or extinct. A volcano is considered active when it has erupted on recent geological scales. Normally 10,000 years are used as a reference figure, although it may vary depending on the source. An example is Mount Etna in Italy.. Dormant volcanoes are those that have not erupted for many thousands of years, but still have the potential to do so, as there is still a source of magma available. This is the case of the Mount Omuro volcano, in Japan. Finally, extinct volcanoes are those that can no longer erupt, because they have lost connection with their magma source, which may have diverted, solidified, or disappeared completely. In Spain, the Cabo de Gata volcanoes in Almería are in this state. In the case of the volcanoes of Tenerifeare considered active, since it has been just over a century since their last eruption. Even so, that does not mean that there will be another one imminently. The latest eruptions. There have been no eruptions in Tenerife since November 1909, when the Chinyero eruption. This was preceded by intense seismic activity, which began in March 1908, more than a year earlier. However, they were much more intense tremors than those happening now. There was even a strong emission of fumaroles in the Teide crater. Other sources suggest that the tremors began a little later, but in any case more than 6 months before the eruption and always of great intensity. It is true that, since they occurred so long ago, there is no record of the magnitude of those earthquakes. However, there are many testimonies from neighbors who felt them, while those that are happening in Tenerife now are of such a low magnitude that it is very difficult for the population to notice them. Magma on the surface. In addition to fumaroles, the movement of magma on the surface is one of the signs that a volcanic eruption is close. It is another reason why geologists insist that this seismic swarm does not predict an eruption in the short or medium term. With the earthquakes of 2004 there was more concern, because yes they were felt by the populationalthough they did not have a magnitude either very high. In addition, magma was detected very close to the surface. Even so, the systems for detecting and monitoring earthquakes and possible volcanic eruptions were not as good as those today. Today the preambles of a volcano eruption are much better known and, with what is currently happening, there is nothing to fear. Images | Wikimedia Commons/IGN In Xataka | The last time Mount Fuji erupted was 318 years ago. The Japanese government has turned to AI in case it happens again

2,200 years ago, the Earth’s magnetic field collapsed. Some wine amphorae recorded it with unprecedented precision

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Finding some ceramic at a site is a fairly common occurrence, but in archeology the context is almost everything: this way you can discover from the Roman legions took away their vices there where they were going 1,800 years ago they were already used as piggy banks. Or even strange movements of the Earth. It’s what has happened in three sites in Jerusalem, where 24 pieces of ceramic have functioned as a kind of millennia-old compass record. The discovery. A research team from Tel Aviv University, Ariel University and the University of California, San Diego has managed to obtain geomagnetic information from 17 handles of wine amphorae from the island of Rhodes and seven jugs made there in Jerusalem, more specifically from the sites of the City of David, the Jewish Quarter and the Givati ​​parking lot. What makes them special are two things: on all of them the names of the potter and the supervisor of that year’s production appeared. There is another surprising fact from the analysis of the pieces: reveal that between the years 206 and 156-155 BC the Earth’s magnetic field lost more than 30% of its intensity. The scientific explanation. When clay is fired at high temperatures, the iron-containing minerals it contains are oriented according to the magnetic field that exists at that moment and when they cool, they stay that way forever… or until they are heated above the Curie temperature. If they are heated some time later in a laboratory under certain controlled conditions, it is possible to obtain the signal and intensity of the magnetic field from the time of manufacture, which is known as “archaeointensity analysis.” Why is it important. Because the ceramic pieces revealed that the magnetic field weakened much faster than estimated with current models. On the other hand, because magnetism offers an alternative to radiocarbon to date ancient objects and structures with a precision that carbon cannot always offer. Already there were studies that they affirmed it, but this confirms it for the Hellenistic era. Context. The starting ceramics are stamped handles of amphorae made on the island of Rhodes between the 3rd and 1st centuries BC. In the Hellenistic period, these amphorae circulated throughout the eastern Mediterranean, loaded with wine or oil. Greek amphorae they used to have engraving the name of the potter and the annual official who supervised production, called the eponym. This administrative custom turns the Rhodes amphorae into a chronological instrument of incredible precision: it is possible to date pieces with a time deviation of less than one year, something that is rarely seen in archaeology. In detail. Collaterally, this finding also has implications for the acra fortressa building that the Seleucid king Antiochus IV ordered to be built around 167 BC to control the city during the time of the Maccabees and whose exact location has been one of the most lively debates in archeology in Jerusalem for decades. In 2015, at the Givati ​​car park site, a team of archaeologists discovered part of a defensive ramp that they associated with Accra. The problem is that one of the vessels found in its structure belongs to a ceramic type that does not appear until after 130 BC, that is, decades after when Antiochus IV ordered the construction of the fortress. If the ramp were part of the original Acra of 167 BC, the vessel in its foundation would have to date from before that date, not later. Furthermore, its magnetic intensity fits with a manufacture from the end of the 2nd century BC. C. What does this mean? That ramp may not belong to the original Accra structure. Yes, but. The study concludes that a jug found under a defensive ramp in the Givati ​​car park is too recent to be linked to the original construction of the Accra fortress. But that information does not resolve anything: the ramp could have belonged to a later renovation phase or the jug could have been placed there later. On the other hand, Previous investigations in the Levant They already pointed to a drop in the magnetic field between 220 and 160 BC, and this finding supports it with unprecedented precision. Even so, 24 vessels are an insufficient sample to consolidate the curve on a regional scale: more samples are needed from more sites. In Xataka | A cargo sunk in a Swiss lake 2,000 years ago confirms it: the Roman legions did not deprive themselves of anything In Xataka | The most polarizing and divisive scientific debate of the moment has to do with wine. With one 1,700 years old Cover | Israel Antiquities Authority and Toa Heftiba

It is the largest distillation attack ever recorded

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Anthropic has sent a confidential letter to the US Senate accusing Alibaba of orchestrating the largest distillation attack it has ever suffered Claude. According to share Bloomberg, the Chinese company would have created almost 25,000 fake accounts to extract capabilities from its AI model without paying for them or investing in its own development. What exactly happened. The media, which had access to the letter, affirms that this dates back to June 10 and was addressed to Tim Scott and Elizabeth Warren. It states that operators linked to Alibaba and its AI laboratory, Alibaba Qwenwould have generated more than 28.8 million interactions with Claude between April 22 and June 5. According to the media, to avoid detection, they resorted to obfuscation techniques and proxy networks. The objective of these attacks, according to the media, was to extract the most advanced capabilities of the model, including agentic reasoning and software engineering. Claude is not available in China, so these attacks were supposedly executed through fraudulent accounts. What is distillation about?. Is a widely used technique in the industry to train smaller and cheaper models from the results of a more powerful one. In itself it is not illegal, but it is when it is done without authorization and on a massive scale as would have happened, in theory, in this case. Anthropic argues that these attacks turn “hundreds of billions of dollars in American investment and development into a massive subsidy for our geopolitical competitors,” according to collect the Wall Street Journal. It’s not the first time. In February, Anthropic had already pointed out three Chinese laboratories (DeepSeek, Moonshot and MiniMax) for a similar campaign that claims to have generated more than 16 million interactions with their model through some 24,000 fake accounts. The signature account that OpenAI and Google have also published findings on similar attacks against their own models. What makes the Alibaba case different is the scale, almost twice as many interactions as the previous case. Also the timing, since the information suggests that it occurred weeks after the Trump administration would warn explicitly in an internal memo that this type of AI theft and at this scale was “unacceptable.” Audacity. Anthropic accuses Alibaba of having acted “brazenly” knowing it was in the crosshairs. The Chinese company is listed on the New York Stock Exchange, operates in the United States and has investors regulated by the SEC. Even so, the media suggest that the attack occurred after the White House statement. The Financial Times points out Furthermore, the White House had concluded that Alibaba provided technological support for Chinese military operations against US targets, something the company categorically denies. This week, Alibaba He also filed a lawsuit against the Pentagon to remove her from a blacklist that links her to the Chinese army. What Anthropic asks of Congress. The company proposes three concrete measures: The first is to update antitrust laws so that AI companies can share information about these types of tactics without incurring legal problems. The second, strengthen export controls on advanced chips so that China cannot take advantage of the answers provided by American AI models even if it obtains them. The third, legislate to directly penalize Chinese laboratories that carry out distillation attacks, with sanctions that could include blocking their access to AI chips or models manufactured in the United States. The race behind. Anthropic warns in its letter that if China manages to close the gap, it could have “advanced cyber capabilities to deploy against the US government and American companies.” The model Mythos from Anthropic, which has worried everyone with its capabilities, it is precisely the one that worries Beijing the most. 360 Security Technology founder Zhou Hongyi called Mythos a “cyber nuclear weapon” at a conference in Beijing, according to informed South China Morning Post. Zhou admits that China is “far below” that level and called for developing its own equivalent to ensure mutually assured destruction in the event of a digital conflict. What can happen now. Alibaba shares have fallen more than 4% in Hong Kong after the accusation was made public, according to they advanced From the WSJ Laila Khawaja, director of research at Gavekal Technologies, told the media that, given that this is not the first accusation of this type against Chinese companies, the reputational damage should be limited. What’s really at stake is whether Anthropic can convince Congress to greenlight its requests. For now, the company simply says that it “will continue to work with Congress and the Administration to maintain American leadership in AI.” Cover image | AI-generated with Magnific In Xataka | The great fortunes of artificial intelligence: who is who in the new AI millionaires

chronicle of a collapse announced and recorded almost live by NASA

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Mexico City faces one of the most complex geological challenges that exist and it is not earthquakes: it is subsidence accelerated by human activity. What’s that? The slow and progressive sinking of the soil. One of the causes is the extraction of too much water from the subsoil because that water partly holds the ground from within. If there is no water, the sediments are compacted by gravity and as a result, the surface sinks. Mexico City has been sinking for more than a century for this reason and the recent NISAR satellite mission, a collaboration between NASA and its Indian counterpart ISRO, has launched unprecedented surveillance that is already bearing fruit: the most detailed and recent cartography of this phenomenon in the Mexican capital to monitor its sinking almost in real time. It is more than a map: it is a survival tool for a city inhabited by more than 20 million people. Mexico City sinks. The first time subsidence was reported in Mexico was in 1925. The data from 1898 to 2005 show a constant subsidence throughout the period, with a maximum rate of 40 centimeters per year between 1998 and 2002. It is neither new nor something small and, furthermore, it is a cumulative and mostly irreversible process. So Mexico City is deforming. Sentinel-1 data they showed that the soil surface sinks at a rate of 35 cm per year within the city, while the peripheral areas suffer a slight rise of about two centimeters per year as an elastic response to this loss of water mass. The new NISAR data barely covers three months (from October 2025 to January 2026) and is as easy to read as it is alarming: the dark blue tone marks those areas that sink more than 2 centimeters per month due to subsidence. Map of the subsidence of Mexico City. POT Why is it important. The problem is one of public safety and economics. The Economist echoes from a Water Engineering and Management study that quantifies the structural damage derived from subsidence: about 67,926 million pesos per year (about 3,312 million euros) in pipes, breakdowns, building fractures, among others. It might seem that the fact of sinking itself is the worst, but what is truly destructive is the difference in speed between those areas that go down faster than others, which causes progressive damage to infrastructure while generating structural tensions. criticisms for infrastructure design. In addition to material damage, subsidence alters the seismic response of the soil, increases the risk of serious flooding by modifying the natural drainage of the basin and favors the migration of salts and contaminants into aquifers, which affects water quality. In short, it raises alarm bells about a future water crisis. Context. The origin of the problem is a combination of natural geological factors and historical urban planning decisions. Mexico City was built on the ancient bed of Lake Texcoco, drained by the Spanish conquistadors. When the lake was drained, the city was settled on its old bed, formed by lacustrine clays of volcanic and organic origin. Under natural conditions these clays supported the lake ecosystem without collapsing. However, the development of the city and water extraction has caused the balance to be broken: the silt is compacted and causes the soil to contract and sink. The urban growth of Mexico City prevents rain from recharging the aquifers because more and more soil is covered by impermeable surfaces such as asphalt. It is a vicious circle: there is less natural recharge of the aquifer, which forces more water to be pumped, compaction accelerates and aggravates the subsidence, damaging infrastructure. There is no turning back. When the effort of supporting the city on its shoulders exceeds the pre-consolidation stress (the resistance limit of the clay), the mineral sheets collapse and rearrange themselves definitively. It’s a path of no return: Even if water were stopped being extracted tomorrow, a good part of the accumulated sinking cannot be reversed. The city has literally lost meters of height that it will never recover. What can be controlled is the damage, which involves a change in water management where reducing dependence on aquifers is essential. Of course, it implies looking for other water resources such as transfers or recycling water, in addition to facilitating the penetration of water into the subsoil. These measures will not reverse the damage caused, but at least they would slow down the sinking and offer an alternative access to water for a megacity. The technology behind the map. The satellite NISAR It is the first to carry two synthetic aperture radar instruments at different wavelengths and is capable of monitoring the Earth’s land and ice surfaces twice every 12 days thanks to a huge 12-meter diameter antenna reflector. The technique used is called SAR interferometry (InSAR) and consists of comparing two radar images taken at different times: by measuring the phase changes of the signal, ground displacements of just millimeters can be detected. The great advantage of NISAR over its predecessors is its L band (wavelength of about 24 centimeters), which allows it to work even in terrain with dense vegetation or high humidity where other radars such as the Sentinel-1 lost quality. This tool turns NISAR into a global early warning system for cities facing similar risks. In Xataka | Mexico touches the sky with a new and elegant skyscraper of 484 meters and 99 floors: it will be the tallest in all of Latin America In Xataka | Cancun has a huge bottleneck in its tourist area: Mexico is going to solve it with a megabridge Cover | POT and Alexis Tostado

A fan secretly recorded 10,000 concerts over 40 years with a dictaphone. Internet Archive is digitizing everything

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For four decades, Chicago club owners would see a guy with deep pockets walk in and turn a blind eye. Aadam Jacobs didn’t sell anything or bother: he simply recorded. Every week, several concerts. Every year, hundreds of tapes. Forty years later, that absurd and methodical habit is one of the most valuable and unique sound files of rock history. Who is it. Jacobs, who is now 59 years old, began recording concerts in 1984 with a dictaphone-style device that his grandmother lent him. He was 17 years old and was already recording songs from the radio when he realized he could do the same live, simply hiding a recorder in a pocket when entering the room. Jacobs does not consider himself an obsessive archivist, but simply a music fan. His reasoning was simple: if he went to several concerts a week anyway, why not document them? More and better. Over time the equipment improved: from the Sony cassette it went to DAT (digital audio tape) and from there to solid state digital recorders, although in the first years he admits that he used quite mediocre material because I didn’t have money for anything else. At first, the venue owners tried to stop him from recording, but over time he became a regular figure on the Chicago music scene and many began to let him in for free. A profile of him in the ‘Chicago Reader’ in 2004 he described it as one of the city’s cultural institutions. What’s in the boxes. What has happened with the Aadam Jacobs Collection, which is the name that has ended up being given to all of their recordings, is especially valuable to fans of indie and punk rock from the 1980s and early 2000s, when the scene hit the big time. mainstream thanks to nirvanazo. The catalog includes early performances by REM, The Cure, Pixies, The Replacements, Depeche Mode, Sonic Youth and Björk. There are also rarities, like a 1988 concert by rap pioneers Boogie Down Productions, or a 1990 performance by cult group Phish. The star: Nirvana. Nirvana’s recording from 1989, when the group was completely unknown, may be the most interesting of all, taken two and a half years before the release of ‘Nevermind’. But there are also hundreds of performances by smaller groups that have no other sound documentation of their career. Engineers reviewing the recordings acknowledge some surprise at the good quality of many of the recordings, especially given that Jacobs was not using professional equipment. How it started. After appearing in a 2023 documentary, the Internet Archive contacted Jacobs to propose preserving the collection in its live music collection (Live Music Archive), since analog tapes have a limited lifespan. Gradual demagnetization, fungus and mechanical deterioration of coil mechanisms mean that the risks of loss increase with each passing year. Internet Archive volunteer Brian Emerick travels to Jacobs’ house once a month and picks up 10 to 20 boxes, each containing 50 to 100 tapes. He transfers the analog recordings to digital files, which he then sends to other volunteers for mixing and mastering. Emerick estimates that it has digitized approximately 5,500 performances since the end of 2024, and that the project will still take several years to complete. An exception. Jacobs’ tapes have survived through a mix of personal obsession and luck, which has ended up leading them to a repository where they will remain for posterity. He smartphone has democratized concert recording, to the point where it is practically impossible for a live show not to have its corresponding digitalization. But democratizing is not preserving: most of that material ends up buried in forgotten backups or online platforms that change their terms of service frequently. Jacobs was methodical despite his amateur status, and that is what has saved this true musical treasure. In Xataka | The first chorus decides everything: streaming is making today’s songs much simpler

The US recorded something strange underground and didn’t know what it was. Now he has just accused China of pressing the nuclear button

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During the Cold War, even at times of greatest nuclear tension, Washington and Moscow maintained an unwritten rule: If a test was done, the world had to find out. The explosions were political signals as much as military experiments, designed to be seen, measured and, of course, feared. Therefore, talking about detonations so small that they barely leave a seismic trace and about tests designed not to be detected, generates great concern. The United States just accused China exactly that. An unprecedented accusation. It happened last Friday, when the United States denounced China for having carried out at least a nuclear test with explosive performance in 2020 and to prepare for other low-power ones, a complaint made in Geneva through by Undersecretary Thomas DiNanno just as the classical arms control framework is collapsing after the New START expiration. According to Washington, Beijing would have resorted to decoupling techniques to dampen seismic signals and hide underground detonations, an accusation of enormous political significance because it breaks the previous ambiguity and indicates for the first time a specific date, the June 22, 2020in the midst of debate over whether the United States should recover the option of testing nuclear weapons again. The diffuse limit. The technical and legal background is key to understanding the controversy, since both China and the United States have signed, but not ratified the Comprehensive Nuclear Test Ban Treatyallowing subcritical testing no self-sustaining nuclear reaction but prohibits any explosion with measurable output. Washington maintains that Beijing would have crossed that line with evidence very low powerdifficult to detect, while the body in charge of verification, the Comprehensive Nuclear Test Ban Treaty Organization, ensures that its network did not detect no event compatible with a nuclear explosion that day, thus underlining the fragility of a control system that never came into full force. Lop Nur, satellites and silent expansion. It we have counted other times. American suspicions are also supported by satellite images and intelligence analysis that point to intense activity in the historic Lop Nur polygonwith new excavations, tunnels and drilling that could be used for both subcritical tests and higher performance detonations. This movement fits with the rapid expansion of the Chinese arsenal, which would already exceed the 600 nuclear warheads and could reach a thousand before 2030reinforcing the perception in Washington that the real strategic challenge is no longer Moscow but a Beijing with the capacity and will to challenge US military primacy. A new nuclear race scenario. The Washington complaint comes accompanied by a clear political message: without binding limits, transparency or verification mechanisms that include China, the system inherited from the Cold War ceases to serve, and the United States reserves the right to adopt “parallel steps”including the resumption of testing, if it considers that other actors are breaking the rules. Beijing strongly rejects accusations, claims its moratorium and its doctrine of no first use, but the simple verbal clash shows a change of phase, one with the risk that the end of New START and mutual distrust open the door to a new nuclear race in which small, almost invisible explosions can have enormous strategic consequences. Image | CCTV In Xataka | Nuclear fusion is humanity’s great utopia in the short term: China has already set a date for it In Xataka | China is building something that looks like an oil well. It is actually a nuclear bunker with a command center

The most famous bridge in the US recorded more than 2,000 suicides. Until in 2024 they found an “invisible” solution

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When the golden gate Opened almost a century ago, it was celebrated as an architectural triumph of engineering and modernity. It happens that the history of many of the great works has had a second reading. Sometimes they have failed due to technical problemsand others have ended up marked by uses that no one foresaw. Over time, a bridge can become something very different from what its plans imagined. The bridge and its dark history. The Golden Gate Bridge, inaugurated in 1937 between San Francisco Bay and the Pacific, has been for decades one of the places most associated to suicide in the United Stateswith a rate of more than 2,000 jumps confirmed and a real figure surely higher because not all cases are seen nor all bodies are recovered. In 2006 there was one of the worst years, with at least 34 deathsand that was also the turning point in which relatives of victims, as Paul Mullerdecided that it was unacceptable to continue living with that routine of tragedies without a physical and effective response on the bridge itself. The barrier that changed destiny. The solution ended up being a deterrent system “invisible” installed along both sides of the bridge, one based on stainless steel cables of marine grade placed about six meters below the pedestrian walkways. It is not something that can be seen from afar or from normal traffic, but it is evident to those who look over the edge. The idea is simple and tremendous at the same time: if someone tries to jump, they fall on that structure, are injured or shocked, and the possibility of completing the fatal fall into the water is cut off. The barrier created to prevent suicides The effectiveness of the new impact. For many years the Golden Gate recorded an average of about 30 deaths annuallya figure that seemed entrenched and almost impossible to break. However, in 2024, with the facility entering its final phase and with adjustments still underway, the deaths they went down to eight. Last year, in 2025 and with the system already operating for twelve months, there were only four and there were no falls between June and December, a stretch that could be one of the longest without suicides on the bridge, although old records are not always complete. By the way, from the beginning of 2026 there is already a casewhich reminds us that there is no such thing as zero risk. That said, the general decline is so evident that even its promoters see it as clear proof of effectiveness and a mirror for the rest of the hanging architectures. Surveillance and intervention. The barrier does not act alone, because the bridge maintains an electronic surveillance system and a team of agents whose task is to detect and stop attempts before they occur. In the last year, 94 successful interventions were achieved, about half of what was normal before full installation, suggesting that the problem does not disappear suddenly. In fact, there are still people who come with the idea of ​​jumping, but now the margin of action is greater and death is no longer as immediate or as certain as it was for decades. Installation of anti-suicide barriers, February 2020 Against inertia and cost. The truth is that the installation of the barrier came after a very long road full of political blocks, doubts about aesthetics, discussions about price and debates about if it would really work. Already in 1939 it was recommended to raise the railings, but for decades measures were avoided while the death count rose from 500 to 1,000 and it continued to grow with chilling regularity. The organized pressure from family and professionals ended up crystallizing at the Bridge Rail Foundationand after years of paperwork the work started in 2018. The project also became very expensive, going from an estimate of 76 million dollars to a final cost of 224 million dollarsand even took longer to install than the bridge itself to build. The “invisible” barrier Why it saves lives. One of the central ideas is that reducing easy access to a lethal method works, even if it sounds too simple. A 1978 study by Richard Seiden, at the University of California at Berkeley, followed 515 people who had gone to the Golden Gate with the intention of jumping and were deterred, and concluded that 94% were still alive or had died of natural causes. This reinforces the idea that many suicidal crises are acute and not permanent, and that placing a specific obstacle at the exact moment can make the difference between dying and surviving. Bridges and the same problem. There is no doubt, the Golden Gate incident was not an isolated case, and there are other iconic bridges that have ended up with a similar reputation by becoming recurring scenes of suicides. In the United States, the royal gorge bridge next to Hoover Dam, or the Chesapeake Bay Bridgethey have had known histories and episodes that have fueled debates about surveillance and barriers. In Canada, the Bloor Viaduct in Toronto was for years one of the most problematic points until it was installed a great prevention structureand something similar happened in the United Kingdom with the Clifton Suspension Bridge in Bristol, where the combination of height, accessibility and symbolism forced action and reinforce early intervention. Also in Australia, the Sydney Harbor Bridge has been targeted of concern and initiatives preventive, and in Europe there are numerous cases on urban bridges and high-rise viaducts that share the same pattern: very busy and at the same time very exposed. The same idea is repeated in all of them, when a bridge becomes a known point, it is not just a problem of physical security, it is a social phenomenon that feeds on itself, and the more famous it is, the more important it becomes to cut that inertia before it becomes part of your identity. The legacy. The Golden Gate had been in operation for decades … Read more

A hero without a cape recorded the same shot for a year. Along the way he left the flat earthers without arguments

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Intrigued by the phenomenon, Eratosthenes decided make an observation in Alexandria, located about 800 kilometers north of Siena. There, on the same day and at the same time, he noticed that a vertical stick did cast a definite shadow. The discrepancy led him to a fundamental question: how was it possible that in one place there was no shadow and in another there was, at the same time? Eratosthenes deduced that the only explanation was that the earth’s surface was curved. A lot of time has passed since then, but the flat earthers are still among us. The home experiment. For centuries, the idea of ​​a flat Earth has outlived telescopes, satellites and lunar missions. Despite the overwhelming evidence, from the images taken from space and the established physical principles from Aristotleflat earthers have continued searching for the edge of the planet, organizing expeditions to Antarctica or navigations to the supposed “end of the world” that invariably end with the same discovery: that the edge does not exist. Be that as it may, an anonymous Reddit user has dismantled once again his entire creed without leaving home. Armed only with a security camera, the shadow of his garage and the patience of an entire year, he managed to record a test as simple as it was incontestable: the movement of the Sun drawing a figure of eight perfect on the ground. The footprint of the Sun. Between March 2024 and March 2025, this user (under the alias RedditorofReddit07) marked daily, at the same time, the position of the end of a shadow cast by a corner of his garage. After twelve months, the yellow dots traced on the cement an asymmetric curve in the form of infinity: an analemma. This phenomenon, documented by astronomers for centuriesis the direct result of the 23.5 degree tilt of the Earth’s axis and the planet’s elliptical orbit around the sun. In the summer months, the star reaches the highest point of the analemma; in winter, the lowest; and during the intermediate seasons the rest of the figure is drawn. Each latitude generates a slightly different shape, but they all share the same essence: an Earth that moves, rotates and tilts, not a motionless disk under a celestial lantern. The physics of time. The analemma not only reveals the movement of the planet, but also the difference between solar time and time measured by clocks. In theory, noon always occurs at 12 o’clock, but the Sun does not reach its highest point at exactly the same time every day. This variation, a consequence of the inclined axis and the unequal speed with which the Earth travels its orbit, is the reason why the analemma adopts a figure-eight shape. Science sums it up in a formula called the “Equation of Time,” an adjustment that explains why solar days vary in length and why the apparent position of the Sun advances or lags throughout the year. This mismatch is as predictable as it is beautiful, and can only be explained by a spherical planet that orbit a starnot by a flat disk with a wandering Sun that rises and falls without altering its size. The impossible refutation. In the flat earth modelsthe Sun moves on a plane, like a lamp on a table, projecting its light in circles on the surface. If that were true, the end of a shadow always observed at the same time should remain fixed throughout the year. However, the garage experiment shows exactly the opposite: a harmonic displacement that only fits the heliocentric model. Reproducing this effect in a flat world would require, in addition to an act of faith without a network, that the Sun change its trajectory, height and speed in an absurd way, violating the very laws of optics and gravity that its alternative model allows. The flat earthers themselves, faced with such evidence, barely manage to develop new explanations that are more imaginative than scientific. The method. He merit of the experiment It lies not in its complexity, but rather in its humility. Without telescopes or laboratories, a simple fixed camera and a daily routine were enough to record the annual dance of the Earth in front of the Sun. Each shadow point marked on the cement is a slap to the conspiratorial noise that floods the internet. In times when science is forced to defend the obvious, an ordinary garage has become an observatory and an anonymous user a popularizer. He already said it Carl Sagan himselfalthough he only needed a stick to dismantle conspiracies. Image | reddit, jailbird In Xataka | 48 people went to Antarctica to prove that the Earth is flat. They confirmed what can be done with a simple stick In Xataka | Astronomers cannot define this object. They only know that it is heading at two million km/h to the center of the Milky Way

Thousands of people recorded a B-52 at a fair. Shortly after, a commercial flight had to maneuver sharply to avoid it

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Skywest flight passengers, operated as Delta Connection between Minneapolis and Minot (North Dakota), starred in an unprecedented incident on Friday. The captain of Embraer 175 turned sharply The plane during the approximation by distinguishing a B -52 bomber from the American Air Force too close to its trajectory, which caused surprise and alarm on board. In a video recorded by the passenger Monica Green and Posted on Instagramthe pilot excuses the passengers: “Given their speed – they were military, I don’t know at what speed they were going, but they were much faster than us – I thought it was sure to turn around. They greatly apologize for the aggressive maneuver. It took me by surprise. This is not normal.” An unexpected event that is being investigated The FAA opened an investigation into the event on Monday. Skywest clarified thatdespite having permission to land, the flight made a frustrated approach maneuver By sighting another aircraft in its trajectory. The company is also evaluating the incident from its side. If you wonder what a B -52 was doing in that area, I was fulfilling a scheduled overflow for the North Dakota State Fair, As confirmed by the Air Force. That event is held in Minot, where a civil airport and an air base coexist. The military statement specifies that “The tower did not report the commercial plane”And, after exceeding the fairgrounds, he was ordered at the bomber to move three kilometers west. Tiktok @Theruralrose user recorded the two aircraft in the air from the North Dakota State Fair Platform monitoring data Flightradar24 reveal that he Embraer 175 He made an abrupt turn to the right, recovered altitude and remained waiting before restarting the approach. FAA added that air traffic control in Minot is managed by an external companywhose operators have “the same training and qualification requirements as those of FAA.” Green told CNN: “It was a very right turn and then he went quite to the sides. I looked out the window and all I saw was the grass.” The Embraer 175 belongs to the E -Jet family, a range of regional aircraft manufactured by the Brazilian Embraer. It is a narrow fuselage design thought for short and medium radio routes. Normally it transports between 76 and 88 passengers according to single or double class configurations, with turbofan engines GE CF34-8E and a vCruise elocity near 890 km/h (Mach 0.82). Its typical reach exceeds 3,300 km. Images | Embraer | @Theruralrose (Tiktok) | US Air Force In Xataka | Ryanair workers have a good reason for passing passengers with too big suitcases: collect more

There is already a detainee for using the Meta Ray-Ban to record without consent. Recorded hundreds of women in Barcelona without finding out

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A young man has been arrested in Barcelona After recording hundreds of women with smart glasses without their knowledge. What he did with those recordings: use them in their “seduction” courses that sold for 3,000 euros. Why is it important. It is the first known case in Spain where Ray-Ban Meta They are used to commit crimes against intimacy. The victims did not know that a camera that they did not detect recorded conversations about personal information that later disseminated and monetized. The facts. The detainee approached foreign tourists in Barcelona, ​​held apparently casual conversations and recorded them with glasses that had an integrated camera. Without noticing it, and in fact hiding it. The videos were later published in Tiktok and Instagram as a claim for their “seduction techniques” courses. In figures: 329 videos analyzed by the police. 239 Conversations with intimate data of women. 700,000 visualizations reached the video of the complainant. 3,000 euros cost the full course (plus 45 euros per month of subscription) The technical problem. The Ray-Ban Meta (329 euros) emit a white light when recording, but it is easy to hide them with small tricks. The majority of victims did not detect being recorded, according to police investigation. Smart glasses pose a privacy dilemma that we had not had to face so far, although it already anticipated a decade ago with The Google Glass opening the way. Ray-Ban Meta are much more concealed. Let’s not talk compared to a mobile. Yes, but. Goal designed a safeguard: the indicator light. The problem arises when malicious users deliberately avoid them to record without consent and then make malicious use, or at least to monetize or spread them. Goal is preparing more AI functions for these glasses that will identify places or people in real time. Some users have achieved it on their own. This arrest promises to be the first of many conflicts that are yet to come between body technology and privacy. Outstanding image | Goal In Xataka | Technology are getting excited about smart glasses. I have serious doubts about your success

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