hours

He arrives and hides for as many hours as necessary until his objective appears

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In some sectors of the front in Ukraine, units began to detect something strange during the night: in the thermal cameras, small hot spots appeared motionless for hours on rooftops, roads or open fields, without anything happening… until at dawn one of them was suddenly activated and everything changed in a matter of seconds. The birth of the “patient” drone. The war in Ukraine has shaped a new figure on the battlefield, another one: a weapon that does not run or pursue targets, and that does not need to be shown, because it simply wait your moment. These are drones that arrive from the air, land silently and remain hidden for hours or even all night until their target appears, transforming combat into a matter of of patience and calculation where the decisive factor is no longer speed, but the ability to anticipate the enemy. This evolution has blurred the lines between mines, munitions and aircraft, creating a system that turns any logistics route, building or road into a latent trap. How to build an invisible ambush. They counted in Forbes The weekend that the success of these drones does not depend on improvisation, but on meticulous prior work based on signals intelligence, aerial surveillance and analysis of movement patterns to determine where and when to place each device. Once the point is chosen, the drone lands in an area that combines concealment and technical feasibility, often with landing gear modified to adapt to uneven terrain, and is connected via fiber optic (sometimes km) to avoid interference and reduce its detectable signature. From that moment on, a wait begins that can last for hours, with the operator waiting for a single opportunity in which the target enters the field of action. Attack without warning. In the videos that have started to circulate showing this type of ambush drone, whose term comes from the way the Russians have called it, Zhduns (“Waiters”)it can be seen that when the moment arrives, the blow is practically immediate and leaves very little room for reaction, since the device is activated from a minimum distance and without the acoustic warning typical of FPVs in flight. Although these systems usually load less explosive to compensate for the weight of the cable and structure, the factor of surprise compensates for this limitation, allowing precise and effective attacks that turn certain areas into psychologically hostile spaces for the enemy. The result is the creation of authentic “scary zones” where any movement can trigger an invisible attack. The war within the war. The response to these systems has generated an additional layer conflict in which there are drones that search for other drones before they “wake up”, using thermal cameras capable of detecting the residual heat of their components even when they are turned off. Added to this are more advanced sensorssweeping air patrols and the use of decoys to deceive the adversary, creating a constantly evolving game of ambushes, counter-ambushes and counter-ambushes that hardly anyone could have imagined a decade ago. In this surreal environment, superiority does not depend only on technology, but on who learns to adapt the fastest. From the air to the ground: robots that expand the trap. Yes, because this same concept of persistent risk is spreading to the ground with the increasing use of unmanned ground vehicleswhich no longer only transport supplies or evacuate wounded, but also participate in direct attacks and offensive operations. These systems allow reduce exposure of soldiers, taking on critical logistical tasks and, in some cases, holding positions for weeks or launching coordinated attacks against enemy positions. The integration of ground platforms with aerial drones adds a new dimension, allowing ambushes to be deployed from unexpected locations far from the front. Battlefield learning alone. If you also want, it is very possible that the next step points towards increasingly autonomous systems, with artificial intelligence capable of monitoring, detecting movement and alerting the operator, reducing human burden and multiplying the number of devices controlled simultaneously. Although there are technical and ethical limits, especially when it comes to identifying targets, the trend seems clear: battlefields saturated with machines capable of to wait indefinitelylearn from the environment and act at the right moment. In this scenario, war stops being a succession of visible confrontations and becomes a network of hidden threats where the most dangerous enemy is the one that has been waiting for hours (or days) without being seen. And with an unprecedented advantage: impossible to track your breath. Image | x In Xataka | Russia has an unprecedented enemy in the Ukrainian war: Japan has just landed with a weapon to take down its shaheds In Xataka | Ukraine has recalled the weapon used with Stalin to convince the US: literally, turning Donbas into “Donnyland”

It is not that Germany is promoting the four-day work day, it is that it is the country that works the fewest hours per year

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In May 2025 and through the Eurostat dataa reality was confirmed that sometimes confuses a story: the myth that says that Germans work harder than Spaniards did not stand with figures in hand. The key, as we comment thenwas in the quality of the labor market: a good part of German workers work fewer hours per week in part-time jobs, but they did so for more years than Spanish workers. And now the OECD has arrived to put Germany in your place. Work identity crisis. Germany, traditionally associated with discipline and productivity, today faces a paradox: according to the OECDis the developed country where fewer hours worked per year, just 1,331 compared to the 1,898 of Greece or the 1,716 of Portugal. The situation represents a symbolic blow for a country that just a decade ago imposed austerity policies on southern countries, stigmatizing them as not being hard-working. The drop in workload is combined with a economic deterioration palpable: unemployment has exceeded three million people For the first time in a decade, the economy has contracted for two consecutive years and the GDP is already lower than in 2019, while Spain and Greece are growing at rapid rates. greater than 2%. The debate about work. we have been counting. The reduction in hours worked has become on central theme in German politics. Chancellor Friedrich Merz warns that four-day work weeks and an overemphasis on “life balance” will not sustain the country’s prosperity. The data they are striking: German workers enjoy longer vacations than the legal minimum, numerous holidays and an average of 19 sick leave a year, compared to 16 before the pandemic, a change that experts attribute more to culture than health. Scandals like that of a teacher on leave since 2009 receiving full salary have reinforced the perception that labor laxity is unsustainable. The roots of the phenomenon. They counted in the Washington Post that specialists maintain that it is not about laziness, but rather structural barriers. Almost half of German women work part-time, a figure that exceeds 65% in the case of mothers, which translates into one of the largest gaps in full-time equivalent employment in the entire EU. Historical factors also weigh in: in West Germany, working mothers were stigmatized like “crow mothers”while in the East, under the socialist model, full-time employment was promoted with daycare from an early age. Currently, cultural differences and a child care system with short hours persist that prevent many families from holding full-time jobs. Proposals and resistances. The experts match in which expanding daycare centers and extending their hours would be decisive, but technical solutions collide with politics. Changing the tax system from joint to individual filing could add the equivalent of half a million jobs full-time, but it is perceived as “anti-family” and difficult to approve. For their part, businessmen they claim less bureaucracy and more immigrationwhile some researchers advocate for simple reforms that free up hidden work hours. However, government responses have been considered timid and insufficient, and the feeling of postponement persists. The four-day elephant. Paradoxically, while political leaders call for more work, more and more companies are experimenting with shorter work weeks. In 2024, 45 companies will test the four day week with equal salaries and reduced hours, with positive results: higher productivity per hour and more satisfied employees. The majority of these firms plan to maintain the model, consolidating the trend in favor of free time. Thus, Germany moves between two poles: a productive system that suffers stagnation and pressure to lengthen working hours, and a society that increasingly values ​​life outside of work, drawing a clash of visions that puts not only the economy, but the identity of the country at stake. Image | International Tr In Xataka | Germany seeks a revolutionary change in its labor system: making working more hours profitable In Xataka | Germany tried working four days a week: seven out of 10 companies no longer want to work five days a week A version of this article was originally published in September 2025

How the nutrition revolution has allowed human beings to lose two hours in the marathon

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“Today I had two slices of bread, honey and tea for breakfast” This was Sabastian Sawe’s brief response to the journalist who had answered what he had had for breakfast that morning. It wasn’t an elevator conversation. It was not pure curiosity among office colleagues before facing a day in front of the computer. Although the answer could very well have been the same. Sawe is not just anyone. Sawe is the fastest man on the planet when it comes to covering 42,195 meters. Sawe is, as of yesterday, the winner of the London Marathon, the recordman of distance and the first person to break down the mythical barrier of two hours in distance. A barrier that was considered unattainable just a handful of years ago. But to round off the accumulation of impossible things that were experienced yesterday in London, Sawe is not the only human to run at a sustained pace of 2’49″/km, repeating the effort up to 42 times and an agonizing and endless 195 metres. Yomif Kejelcha entered just 11 seconds later. Of course, he will have the more than deserved consolation of being the fastest debutant in the history of the distance. Jacob Kiplimo must have been astonished when he realized that the 120 minutes and 28 seconds it took him to cover that same distance had only been enough for him to be third when just two hours earlier they would have made him the new world record holder. All of them are the pure embodiment of a sport that has experienced a revolution in a handful of years. “Yomif didn’t have breakfast on race day,” Alfonso Beltrá, CEO of Holy mother. Beltrá is the founder of a Spanish sports nutrition company, which grew up in cycling but has pivoted to athletics. A few weeks ago, Beltrá himself defended on the Find Your Everest podcast that they were sure that they could be the ones to break the mythical barrier. High competition is the result of research and results that put the athlete in front of a challenge that ends up being decided by details. The differences are minimal and nutrition is what has ended up tipping the balance. A revolution to make the impossible possible Although neither Sawe nor Kejelcha ate a copious breakfast as the most undocumented logic dictates, neither of them stood at the starting line empty. Their stomachs were, but the important thing was that their glycogen stores were bursting with energy. “He doesn’t have breakfast at all on race day, we have a specific drink with 100 grams of carbohydrates that he finishes two hours before the race and another product that we will launch in three months. Then he warms up and six or seven minutes before leaving he drinks a gel with caffeine and 45 grams of carbohydrates,” Beltrán tells us about the Ethiopian athlete who ate 145 grams of carbohydrates before departure. “That’s why we skipped the kilometer five aid station, we couldn’t put in more,” he emphasizes. A very similar amount would have been handled by Sawe’s team. The Kenyan athlete took, in addition to the two slices of bread with honey, a Drink Mix 320 by Maurtena company that has revolutionized sports nutrition in recent years. This is equivalent to 80 grams of carbohydrates and added a Gel 100 that provides another 25 grams of carbohydrates. The total sum between energy drinks, gel and breakfast adds up to about 140-150 grams like Kejelcha. It is a figure similar to taking 200 grams of pasta before running. And then, the performance began. Kejelcha uses Santamadre gels diluted in the appropriate proportion of water to take them with bottles and facilitate ingestion. Sawe, for her part, opted for Maurten’s Drink Mix 160 drink at the first three aid stations (kilometers 5, 10 and 15). In the fourth (km 20) take a little less drink, about 130 ml, but take a gel with caffeine. And from here, at kilometers 25, 30, 35 and 40, 130 ml is prescribed but of the Drink Mix 320, which has a greater carbohydrate load. It is believed, however, that a drum fell. In total, Sawe’s intake remained at about 115 g/h of carbohydrates. Sabastian Sawe race protocol. Click on the image to go to the original post. The figure is very high and unthinkable just a few years ago. And, despite this, it pales in comparison to what was planned for Kejelcha. From Santamadre they explain to us that the final objective was to move around 140 gr/h of carbohydrates in this case. “It’s about keeping your deposits full for as long as possible, being aware that you will always be in deficit, losing more than you earn,” says Beltrá. In this case, they do confirm that the athlete had problems at kilometers 25 and 35, where he lost the bottles. “That coincides with the decline that they experienced at kilometer 41″, laments the CEO of Santamadre who, he emphasizes, for them a debut like this shows that “we don’t know their ceiling. When he arrived he was upset for losing the race, he asked us for forgiveness for losing the two bottles… he wasn’t aware of what he had done, nor did he know it when he hugged me at the finish line.” In this case, Kejelcha used Santamadre gels diluted in water. The limit is set, according to the Spanish company, by the athlete’s own stomach. “The protocol has to be personalized. We have controlled all the variables since we started working together, all meals, rest, body temperature, glycemic peaks… the nutritional strategy was studied to take into account the glycemic index of each moment,” Beltrá explains to us. Kejelcha was, in fact, the only athlete among the first finishers to use a different brand than Maurten. This brand revolutionized athletics with the sponsorship of Eliud Kipchoge and has been the leader in recent years thanks to its famous Hydrogel. With this gel, the brand managed to encapsulate … Read more

know where every naval fleet in the world is 24 hours a day

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For years, on the high seas, commanders trusted that dense clouds or a few well-calculated hours between satellite passes were enough to move undetected. The fragility of that trust was evident March 16, 1988when the American frigate USS Samuel B. Roberts collided with a mine in the Persian Gulf and was almost lost without anyone having seen the threat coming. That scene made it clear that at sea it is not always whoever shoots first who wins, but whoever knows exactly where to look… and when. The end of the invisible ocean. The great naval fleets have moved under an almost sacred premise: the sea is too vast, the weather is unpredictable and satellites were still supposed to be limited to guarantee constant surveillance. It turns out that this idea has just begun to break down tangibly after the chinese demonstration continuous tracking of a ship in motion from a geosynchronous orbit to almost 36,000 kilometers in height. What once depended on brief windows of observation can now be transformed into permanent surveillance, shaking one of the strategic pillars on which modern naval power has been built. Three satellites to see everything. The key to the leap announced by Beijing is not in deploying hundreds of satellites, but in change orbital logic: when placed in geosynchronous orbita single satellite can constantly observe the same region of the planet without interruptions. Not only that. With barely three platforms positioned over the large oceans, China could continuously cover the main sea routes and naval operation zones, achieving global surveillance 24 hours a day in any weather condition. There is no doubt, this introduces an idea that is difficult to ignore, because it is no longer about seeing more times, but rather about never stopping seeing, which brings closer the scenario in which any relevant fleet could be located and followed persistently. From detecting to fixing. Last month, China public a series of undated radar images to give an idea of ​​the power it has over our heads. The monitoring of Japanese tanker Towa Maru It was not only symbolic, but technical: the satellite radar system managed to maintain stable contact despite the waves, cloudiness and interference from the sea, and it did so with a margin of error small enough to be useful in a military environment. Although that precision alone does not allow a direct attack, it does fit perfectly into a broader architecture in which other sensors (drones, long-range radars or lower altitude satellites) refine the location in real time. In this context, weapons designed to attack ships at great distances could receive updated data constantly, drastically reducing the room for maneuver of the adversary fleets. South China Sea Washington in suspense. we have been counting. For years, the US Navy has exploited the gaps between satellite passes, weather conditions and the vastness of the ocean to conceal its movements. The appearance of a network capable of observing without interruptions threatens to eliminate that margin of operational invisibility, forcing us to rethink how aircraft carriers, submarines or logistical convoys are deployed. If every movement can be detected in advance, the strategic surprise is reduced and safety distances increase, which directly impacts the effectiveness of any intervention in sensitive areas. like Taiwan or the South China Sea. Resistant and difficult to destroy. Another key element is the very nature of these satellites: by operating in much higher orbits than traditional systems, they are considerably more difficult to neutralize with conventional anti-satellite weapons. Furthermore, by requiring only a few units to cover the planet, the system is cheaper to maintain and easier to protect or replace than large constellations in low orbit. A priori, this not only improves resilience in the event of conflict, but also complicates the plans of any adversary seeking to blind the space surveillance network. The software that listens in the noise. Beyond the hardware, the decisive leap seems to be in the algorithms capable of processing extremely weak signals after traveling tens of thousands of kilometers. Separating a ship’s echo from the chaotic noise of the ocean was, until now, a problem considered almost unsolvable at these distances, but the new approach allows identify minimal patterns amidst massive interference. This capability opens the door to even broader applications, from vehicle tracking to the detection of other military targets, and at least suggests that what has been seen so far could be just a first version of much more advanced systems. Master the orbit. In short, the strategic impact goes beyond the naval field and points to a deeper change where competition is no longer focused solely on controlling maritime routes, but on dominate orbital infrastructure which allows you to see before your rival. As many analysts point out, if this technology matures and is integrated with other intelligence and attack systems, the military balance could shift. towards those who control that permanent observation layer thousands of km away. In this scenario, the idea that it is enough a trio of satellites to monitor the movement of entire fleets ceases to be a hypothesis and becomes a clear warning for sailors of where modern warfare is headed. Image | Picryl, NASA In Xataka | China is making an “invisible ocean” of the planet: when it is finished it will steal the last advantage that the US had left In Xataka | China has just mounted the largest cannon in its history on the bow of a ship. And that can only point in one direction

Sleeping four hours a day and performing at your best is not a myth, it is a genetic rarity of 1% of the population

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There are people who boast of sleeping only four or five hours a day and claim to wake up fresh as a lettuce, something that can generate a lot of envy, but also skepticism, since it seems hardly credible being able to sleep little and be so active. And science has not stopped saying that sleeping little it is very bad for your healthalthough there is an exception to the rule (as we are used to seeing). What we knew. For decades, the unwavering recommendation of the World Health Organization and sleep medicine experts they have been clear: a healthy adult needs between 7 and 9 hours of sleep night so that your immune system, your metabolism and your mental health function properly. Getting out of there, below, is buying tickets for diseases such as, for example, Alzheimer’s to appear. The exception. Given this rule, there is 1% of the world’s population that has a true genetic superpower that allows them to bypass this rule without any consequences. And the culprit has been detected by researcher Ying-Hui Fu, who after tracking down these people has seen that it has an important genetic component. How it looked. To do this, the researcher decided to analyze entire families where several of their members ‘functioned’ perfectly with just six hours of sleep, without showing daytime sleepiness or cognitive deterioration, while the rest of their family members needed more than eight hours of sleep. And from here, the culprit had a first and last name: the mutation of the DEC2 gene, known as BHLHE41. Although this finding has been the tip of the iceberg, because subsequent studies in animal models and entire families of humans have found a real cocktail of mutations in other genes that seem to optimize sleep so that four hours is more than enough. And it even gave them a ‘protective shield’ against cognitive decline when they faced even shorter nights. In the end they are all benefits. Because you don’t have to try. Reading about these mutations can be tempting, since, after all, different very relevant figures have sold us the myth that we should sleep little because it is a waste of time, and we should get up early at five in the morning. But the truth is that it is vital to separate these people who have an alteration in their genetics from people who sleep little because they want to. If this is not the 1% of the population (which is most likely), science suggests that chronically sleeping six hours or less during middle age increases the risk of suffer from dementia by 30%and even the chances of suffering from diabetes or hypertension also increase. This means that the body should not be deprived of sleep when it is ‘asking for’ it. Something that is noticeable as soon as you wake up. Future views. The interest of the scientific community aims to perfectly understand how these genes can make sleep much more efficient, and above all how they protect against different diseases related to sleep deprivation. In this way, the long-term goal is not necessarily to create pills so that we all sleep four hours and work more, but rather to develop therapies for sleep disorders or prevent diseases such as Alzheimer’s. Images | user18526052 on Freepik In Xataka | Drink water right before going to sleep? Science has finally clarified whether it is a good idea or a terrible enemy of sleep

when Istanbul moved 45,000 tons from its old airport in less than 45 hours

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Modern aviation is not only measured in knots or altitudes, but also in the ability of airports to process huge flows of people or cargo on a continuous basis. But there is an unwanted scenario that could occur: that the airport is not enough. When it collapses, it dies of success and serious logistical measures have to be taken. This is what happened in Istanbul: the need to expand the old Atatürk airport encountered an insurmountable barrier in the form of urban geography. For great evils, great remedies: they had to move the entire airport while international aviation and the country’s logistics continued their course. The event is known as “The Great Move“and constitutes the largest move in civil aviation. In less than 45 hours the center of gravity of air transport in the region moved 42 kilometers north, to the new Istanbul Airport (IST), with all that this entails. The move. In aviation, this operational transfer program is known as ORAT (Operational Readiness and Airport Transfer) and it goes without saying that this move was not spontaneous, but rather the opposite: it took two years of meticulous preparation in which they trained 33,000 airport staff and carried out two large-scale drills to detect potential problems. It all started immediately after the opening of the new airport in October 2018 and the final phase (that move), was executed in a continuous 45-hour window between April 5 and 6, 2019 to move more than 10,000 pieces of equipment with a total weight of 47,300 tons. In fact, it was even better: they did it in much less time. Why is it important. If a move has its ins and outs per se, for an airport the problems and the need to execute it without errors multiply as long as it is a living infrastructure with interdependent systems such as fuel, air traffic control, security, IT, passengers and luggage. Disconnecting, transporting and reconnecting everything without collapsing the air traffic of one of the busiest cities in the world is a high-flying engineering challenge. “The Great Move” showed that a world-class hub is possible without a prolonged dual transition, minimizing the operational risk of managing two airports simultaneously. Finally, the movement consolidated Istanbul as a great connection point between Europe and Asia, rivaling others in the Middle East such as Doha or Dubai. Without this move, Turkish Airlines’ growth would likely have been stagnant due to the physical limitations of the old airport. Context. In 2017, Atatürk Airport was the fifth busiest in Europe, behind Heathrow, Charles de Gaulle, Frankfurt and Amsterdam. Without going any further, in 2018 served to almost 70 million passengers, making it the tenth busiest on the planet. But it was limited: it was surrounded by the city on three sides and by the Sea of ​​Marmara on the fourth, so expansion was physically impossible. The secondary airport of Sabiha Gökçen It had also reached its maximum capacity. The lack of space was so critical that it prevented the Airbus A380 from operating, making Atatürk the only major airport in Europe and the Middle East unable to receive such aircraft. So in 2013 they made the decision. The flight that brought down the curtain on Atatürk was Turkish Airlines TK54: it took off on April 6, 2019 at 02:44 to Singapore. In figures. Although there are slight variations in sources directly involved such as Turkish Airlines or the documentary he recorded of the process by the airport operator with the collaboration of National Geographic, are minor and do not detract from the colossal nature of the operation: A planned duration of 45 hours (which they reduced to 33 according to the IGA and less than 30 according to Turkish Airlines) More than 10,000 pieces of equipment moved between airports, with a total weight of 47,300 tons. Equivalent to 33 football fields. 686 semi-trailers used for transportation, according to the CEO of Turkish Airlines. 1,800 people were directly involved in the process. They estimated the distance traveled by the trucks in 45 hours to be 400,000 kilometers, that is, going around the Earth about 10 times. How they did it. It took two years of meticulous preparation in which they trained 33,000 airport staff and conducted two large-scale drills to detect potential problems. Planning required more than 100 meetings and workshops and there were three logistics companies involved. For execution, they developed a logistical transfer plan with details of the movement of each vehicle in 15-minute windows. The route was established through a corridor between the two airports, using the new highway connection between both facilities and each vehicle was checked twice: once at the departure gate and once in a separate control area. The whole process was monitored in real time with GPRS to detect any incident. At 02:59 on April 6, 2019, the IATA code changes were made: Atatürk’s IST code was renamed ISL and the new airport inherited it. Between 02:00 and 14:00 that day, both airports were closed to commercial flights, a 12-hour period that constituted the critical core of the entire operation. The new airport. Istanbul Airport had an estimated budget of 22 billion euros, becoming at that time the second most expensive airport ever built, as told Reuters. Designed with a single terminal under a single roof of 1.4 million square meters, initially allowing 90 million passengers annually. The master plan contemplates expansions up to 200 million, with independent runways that allow simultaneous landings and takeoffs, eliminating waiting in the air. In 2025, the airport rondo 85 million passengers, making it the second busiest in Europe after Heathrow and the seventh in the world. In Xataka | The unfinished dream of the Roman Empire: a 125-kilometer train to link Europe and Asia over the Bosphorus In Xataka | One of the largest and strangest airports in the world is not going to be in Dubai or the UAE: it is going to be in Ethiopia Cover | Ercan Karakaş and Kulttuurinavigaattori

They promised us that 20 minutes of sparking was equivalent to 4 hours in the gym. Science says it’s more complicated

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Since humans became aware of the existence of electric current, they have tried to apply that power to their own body. As detailed in a report by The Wall Street Journalthis fascination goes back a long way: from the ancient Roman belief in the healing impact of torpedo fish, to the famous vibrating belt machines that promised to sculpt silhouettes in the 1950s. Today, the industry fitness has taken it a step further with whole body muscle electrostimulation (WB-EMS). The concept itself seems straight out of a science fiction movie: users don a wet suit covered in electrodes that delivers simultaneous shocks to major muscle groups for about 20 minutes. The marketing hook is irresistible, as these strength and bodyweight training sessions are sold as the ultimate shortcut to replacing hours of sweat in the gym. On social networks, dozens of influencers They upload videos doing squats and arm lifts while wearing this bionic suit. But, beyond the aesthetics and the promise of a toned body with little effort, what is true in all this? From the clinic to global fashion The technology behind electrostimulation is not a recent invention nor was it born in a trendy gym. Initially, it was used in hospitals and rehabilitation settings for a strictly medical purpose: to relieve pain, prevent muscle atrophy in bedridden patients, and improve circulation. However, in recent years, it has experienced explosive growth as a business model. fitness. The data is there. On the ClassPass platform, the number of centers offering EMS training worldwide increased more than 16% between 2023 and 2025. International franchises such as the French Iron Bodyfit plan to open more than 50 studios in the United States in the next three years, while the Californian company Body20 has gone from 46 to 67 locations nationwide since 2023. All this despite the fact that it is not an economic activity: classes cost between $40 and $100 per session. To understand the phenomenon, you have to understand how the experience works. The wet suit—water is necessary to conduct electricity effectively—sends electrical impulses directly to the muscle. This forces a greater percentage of muscle fibers to contract simultaneously involuntarily. As described by journalist Ellen Gamerman in The Wall Street Journalthe physical sensation is similar to that of receiving a call on a mobile phone in vibrate mode, with the difference that, in this case, “you are the phone.” Combined with core exercises, the level of muscle contraction makes the effort feel as intense as a high-intensity interval (HIIT) class. If you extend one arm without bending it slightly, the current can cause it to lock up completely until the trainer lowers the intensity of the machine. But who is attracted to this technology? Helge Guetzlaff, business development director of the German brand Miha Bodytec, joked in the American newspaper claiming that it attracts “a lot of lazy people.” However, Sabine Padar, owner of the exclusive Body Alchemist NYC studio, points out that she often has to convince her clients that spending more hours in the gym is not the only way to gain muscle. She insists that EMS sessions aren’t necessarily easier than traditional training, they’re just faster. The user profile is varied: from women concerned about losing strength during menopause to fashion professionals, such as Max Auth, a director of the Wolford brand who confesses to spending about $300 a month on these sessions to maintain his figure with a minimal investment of time. The reality bath Faced with marketing claims that “20 minutes are equivalent to 4 hours in the gym”, the scientific community has decided to take action on the matter. Cedric X. Bryant, executive director of the American Council on Exercise, points in WSJ that these claims are hyperbolic and that what one should expect from these workouts is being greatly exaggerated, while acknowledging that they may offer mild to moderate improvements. To shed light on the matter, various studies have analyzed the real impact of WB-EMS on different population groups: In older and sedentary adults: A research published in Clinical Interventions in Aging demonstrated the effectiveness of this technology in sedentary and thin older women, at risk of sarcopenia (loss of muscle mass) and abdominal obesity. After subjecting a group of 23 women to 18 minutes of WB-EMS (three sessions every 14 days) for 12 months, the results showed significant and positive differences in appendicular muscle mass and a reduction in abdominal fat mass compared to the control group. The study concluded that, given the good acceptance of the technology, WB-EMS is a valid and less daunting alternative for subjects who do not want or cannot do conventional exercise. In recreational athletes: Another essay published in Frontiers in Physiology analyzed the effects of WB-EMS in male recreational runners. For 6 weeks, participants reduced their running training to a single day per week and added a weekly WB-EMS session. The results indicated that the electrostimulation group improved their maximum oxygen consumption (VO2max), their ventilatory thresholds, their running economy and their vertical jump. This suggests that WB-EMS may be an effective stimulus to maintain and even improve performance in periods where resistance training volume is reduced. The definitive comparison (The WB-EMS is not a miracle): To check whether electrostimulation is really superior to classic sweating, the FIT-AGEING project evaluated 89 sedentary middle-aged adults. A rigorous study also published in Frontiers in Physiology divided the subjects into three 12-week programs: traditional concurrent training (recommended by WHO), high intensity interval training (HIIT), and HIIT added to WB-EMS. Finally, all types of exercise induced similar increases in cardiorespiratory fitness and muscle strength. In fact, the scientists explicitly concluded that the changes observed in the WB-EMS group were not superior to those of the other conventional exercise programs. The suit does not provide any extra decisive advantage compared to sweating the shirt in a traditional way. The silent danger of overexertion Despite the obvious benefits, WB-EMS is not a toy and carries risks if not properly supervised. As he … Read more

The Tax Agency has not made the income tax return manual accessible for decades. A Valencian man did it in three hours

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“Javier, has the program PADRE come out yet?” Every year, at the end of March, my father—not to be confused with my FATHER—asked me the same question, because I was like an AI alerting him that he could finally get down to it. the income tax return every year. For him that was not just an obligation. I would say it was a hobby. Almost a passion. Something to which he dedicated hours and hours in his office armed with his pens, his tight handwriting, his calculator and of course with the Nobel package next to it. He is no longer here, but if I have not inherited something from him, it is that passion for filing income tax returns. In fact, I have never done it, perhaps because as I saw that he dedicated so many hours and effort to making it perfect, that caused me some trauma. “Ugh, this costs too much,” I told myself then and I continue to tell myself now. And here I am, with a reverential fear of completing that task, which I end up entrusting to a manager because time, they say, is money. And yet, it is a small outstanding debt that I have. Last year I tried to try it, and this year I told myself that maybe with the help of some local AI model (because of privacy) I should try it again. But while I was thinking about it, these days the practical manual of Income 2025and one person decided to do something very interesting with that information: he turned it into something useful. This is how the LaRenta.es Open Source project emerged This manual, no matter how complete and detailed it may be, has a problem: it is very inaccessible. The information is there, but neither the wording nor the structure or its organization make it a particularly useful document for most users. That’s where it came into action. Paul March (@paumrch), a public administration worker who lives in Valencia and who, at 31 years old, has a profile completely aligned with the so-called civic technology. Although his training is not technical, he is a very restless self-taught person who has been “tinkering” with all kinds of personal technological projects for more than 15 years. And the latter has become especially popular. We have had the opportunity to speak with Pau and he told us that by working in public administration and being interested in the application of technology to his field, “I have always been interested in the issue of digitalization of the administration because I know it and I know the room for improvement there is and I am convinced that citizens need that improvement.” When the Income 2025 practical manual appeared, he realized that he could try to do something with it. With the experience of previous projects and the new AI tools that he had been using for months, he got the ball rolling. In just three hours, he confesses, he created LaRenta.esa web service that allows any user Know what state and regional deductions you can take advantage of in this statement. The first question of the questionnaire is important: where we pay personal income tax. The deductions to which we may be entitled depend on this parameter. To do this, it has created a very simple system in which, from a small questionnaire that takes two minutes to complete, we can obtain information about these deductions. The process is reduced to going through seven stages of this questionnaire with a few questions, from which it is possible to obtain a final summary with deductions to which we may end up being entitled. And in each of them, we will have an indicator to know what percentage of the total of each deduction we may be entitled to, as well as detailed information about each particular deduction. In these details, the information present in the 2025 income manual is used more clearly and directly, but although the language is still somewhat harsh, at least in this project only that which is directly related to that deduction is shown in a more readable format. We are therefore faced with a project that is not intended at all to prepare your income tax return, but rather to at least provide the information that exists is more accessible and easier to understand. And as March says, it is far from being a perfect project, but it certainly shows that all that information offered by the public administration can be converted into something even more useful in a relatively simple way. From idea to application in three hours These days this entrepreneur explained the process of creating this webapp in an article posted on his Twitter account (X), and as I said there, the cycle was surprisingly simple. AI was his companion throughout the project, and he took advantage of his experience with previous projects to then take advantage of several tools: The interface design was carried out with the help of GoogleStitch The programming was done with the plugin Claude Code in Visual Studio Code. He used Opus 4.6 to plan the entire project, and Sonnet 4.6 to program it, although for some basic tasks he indicates that he also used Anthropic’s basic model, Haiku. He did it all on March 19, right during the Cremá, the big day of the Fallas in his city, Valencia. The project absorbed him so much that he didn’t even enjoy the party and he spent that afternoon and part of the night polishing the errors he was detecting. The result, as can be seen on LaRenta.es, is a fully functional, fast, clear and practical web application. Not only that: it is totally private. Pau explains that no data is saved except for the email if a user wants the summary PDF report to be sent to them. The potential of civic technology When the project was finished, Pau decided post a message to share it through your Twitter … Read more

an interoceanic corridor capable of connecting the Pacific with the Atlantic in seven hours

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If you are in the Atlantic and want to reach the Pacific (or vice versa), the only viable option from the point of view of time and distance is pay the fee and cross the 80 kilometers of the Panama Canal. The options of surrounding the northern or southern part of the continent are directly unfeasible, whether due to distance, climate, geopolitics or danger. But Panama is not the only country that has a privileged location from a logistical point of view: there is Colombia, Costa Rica, Honduras, Guatemala, Nicaragua or Mexico. In fact, a few years ago Nicaragua already tried his own channel without success. Now it is Mexico that has put an ambitious project on the table: the Interoceanic Corridor of the Isthmus of Tehuantepec (CIIT). Of course, it is not an artificial waterway that unites the two oceans, but rather a combination of ports and railways to connect both coasts of the North American country. A “dry canal”. The Interoceanic Corridor of the Isthmus of Tehuantepec is a multimodal infrastructure project that combines three railway lines, which exceed 1,200 kilometers of tracks (including branches) with two ports, the from Coatzacoalcos (Veracruz) and Salina Cruz (Oaxaca). The idea of ​​passage is the following: the containers disembark at a port, cross the territory by train and are re-embarked on the other side, all of this in less than seven hours. Your goal is transport 1.4 million containers a year. The three railway lines of the Interoceanic Corridor of the Isthmus of Tehuantepec Why is it important. The Mexican government itself refers This project is considered to be of great importance for the economic development of the country for three reasons: the improvement of its railway and port infrastructure, promoting the transfer of goods and also becoming a competitor to the Panama Canal. It will be especially interesting for those boats that do not fit in the canal, such as post-Panamax and Ultra Large ships. The corridor is also a blessing for the nearshoring at a time when the American market (and its president) is inviting companies to leave China in favor of localizations closer ones like Mexico: being able to move goods from the Pacific to the Atlantic and vice versa is a real boost. Finally, this infrastructure will contribute to the development of the region: crosses 79 municipalities46 from Oaxaca and 33 from Veracruz. The infrastructure, in detail. The system is articulated in three axes: Line Z, from Coatzacoalcos to Salina Cruz, 214 km. The FA Line, from Coatzacoalcos to Palenque, 308 km. Line K, from Ixtepec to Ciudad Hidalgo, 476 km. As for ports, although Coatzacoalcos on the Atlantic and Salina Cruz on the Pacific are the main nodes, Dos Bocas and Puerto Chiapas are complementary. Furthermore, it carries the industrial impulse under its arm: the project includes the construction of 14 industrial parks along the corridor forming different clusters. The government provides logistics infrastructure and access to suppliesthus tax benefits to promote companies to establish themselves. The roadmap. The Government of Mexico formalized the CIIT roadmap for the period 2025–2030. Regarding the railway lines, the Z has been operating since December 2023, the FA line since September 2024 and the one that is still under construction is the K line. However, its completion is planned by June 2026. As for the ports, the project contemplates the modernization of all of them to reinforce their capacity and increase their depth, essential to allow the docking of larger and more ships. The objective of the Mexican government is that the Corridor operate at 100% by mid-2026. Bottom line: In theory, it’s just around the corner. Yes, but. The real success of the Corridor depends on the railways, ports, roads and industrial parks functioning as a single perfectly assembled and optimized system. At the moment, ports, trains and industrial estates are going at different paces. Currently, the Corridor is partially operational and the difference between installed capacity and real demand is abysmal: according to the 2024 Railway Statistical Yearbook of the Railway Transport Regulatory Agencythe railroad moved 111,000 tons of agricultural cargo and 1,000 tons of industrial cargo, well below what is expected for a competitor to the Panama Canal. In addition, it has handicaps compared to its neighbor’s structure: having to unload, load into a wagon and reload is a structural disadvantage compared to a direct transfer. The project brings with it challenges such as environmental threats not only derived from the seismic conditions of the Isthmus and high rainfall, but also the risk of deforestation, endangered species or water stress derived from industrial activity. Finally, insecurity and the lack of qualified labor can also cause a dent in its real impact in Mexico. In Xataka | Saudi Arabia’s impossible bridge to join Africa and Asia: a 32-kilometer megastructure over the Red Sea In Xataka | The Mayan Train has become a nightmare for Mexico: what seemed like a great plan has run into justice Cover | face islam and Alex Pagliuca

I spent 8 hours a day watching porn to train the AI. Today he leads the workers union that fights against that

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Spend a workday tagging porn there’s nothing fun about it. Content moderators They have been denouncing terrible working conditions for years and now The same thing is happening with data labeling to train AI. In 404media They tell the story of Michael Geoffrey, a Kenyan who spent months working for two AI companies, until they completely destroyed his mental health. The jobs. Michael stayed in front of his computer for eight hours watching porn, describing what was happening in the images in great detail. It was no affiliation, but rather he worked for a data labeling company that then used all those descriptions to train AI models. When the day was over, his second job awaited him at a sexual AI chatbot company. In this job, Michael had to maintain sexual conversations with users, adopting whatever role was necessary each time; I had to pretend to be a man, a woman, straight, homosexual… and of course adapt to the context in each conversation. Behind the AI. Although they have the last name IA, in reality These sexbots have a lot of human work behind them. That is, when someone talks to their girlfriend or boyfriend AIyou may be talking to a real person. Michael wrote his testimony and said that he had to fake intimate connections with anonymous users. Their interactions were then used to train the AI. In the case of data labeling, workers are exposed to all types of content, some extremely violent. For example, for AI to be able to detect content of sexual abuse and violence, these workers must see thousands of images of abuse and extreme violence, and all for ridiculous salaries. In a Time reportthey said that one of these companies paid between 1.3 and 2 dollars net per hour. The consequences. After several months on the job, Michael suffered from insomnia, stress and began to have problems having sexual relations. He tells 404media that “there came a point where my body no longer responded. When I saw someone naked, I didn’t even feel anything.” Endless hours, exposure to very unpleasant content and very low salaries. Some claim that it is like a form of modern slavery. The companies behind. One of them is Sama, a San Francisco-based company that defines itself as “the perfect example of ethical AI.” It’s the company that paid 2 dollars an hour. Another company that has also been at the center of the controversy is Remotasks, a Scale AI subsidiaryone of the largest labeling companies. It was founded by Alexandr Wang, current head of AI at Meta. By Remotasks it is said that he pays late and often not the amount that was originally promised. These and other similar companies They are outsourced by OpenAIGoogle, Meta and more to train your AI models. The workers organize. Currently, Michael is the secretary of the Data Labelers Association of Kenyaan organization that wants to give voice and make visible the work of these underpaid and invisible workers. Other organizations have also been created such as African Content Moderators and Tech Workers who demand better working conditions and resources to care for the mental health of workers. In Xataka | People Blaming ChatGPT for Causing Delusions and Suicides: What’s Really Happening with AI and Mental Health Image | Data Labelers Association

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