Limit

Walmart has already approved the first green hydrogen truck in Latin America. Its great limit: the load infrastructure

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What if the future of heavy logistics in Latin America had already begun, and would have done it with a single truck? In a region where the transport of goods depends largely on diesel engines, Walmart has achieved homologation of the First Tonnage Tonnage Moved by Green Hydrogen. It happens in Chile, with a vehicle that, on paper, It can exceed 700 km of operation without issuing CO2. It is a test, for the moment. But one that marks the beginning of something much bigger. Chile has not only been the country chosen to test this truck: it has also been the engine of a public-private collaboration that seeks to open the way in heavy transport without emissions. Walmart participates in the Hidrohaul program, promoted by the Corporation for Production Promotion (Corfo), with an initial investment of 6.15 million dollars and a clear goal: Check if this technology can climb. An experiment that can mark a before and after For Walmart, the experiment fits with Its global objective to decarbonize all its logistics operation before 2040. For Chile, it is a general essay of what could become a National Transportation Network Green hydrogen driven. Manufactured by the Chinese company Feichi Technologythe truck uses a hydrogen fuel battery that generates the electricity that feeds its engine. Can transport up to 49 tons and is designed to travel up to 750 km per full load with 75 kg of hydrogen. Although it does not seem, this truck is also an electric vehicle. The difference is how that electricity generates. Instead of loading a battery connecting to the network, use a Hydrogen fuel battery: A system that mixes hydrogen with oxygen to produce electricity, water and heat. That electricity feeds an electric motor that drives the truck. There is no combustion, there is no CO2. And as a byproduct, it only emits water vapor. It is a different way to reach the same destination: a heavy transport without emissions. It all starts in Quilicurain the metropolitan area of Santiago. There, Walmart Chile installed in 2023 The first green hydrogen industrial plant in the countryin collaboration with Engie. The installation has a 0.6 MW electrolyzer which uses electricity from renewable sources – solar and wind – to separate water molecules and generate hydrogen. That plant not only supplies the new truck: it also feeds a fleet of hydrogen lifting wheelbarrows that already operate in the logistics center. The refueling, the great challenge for this to climb The autonomy of the truck is sufficient to operate within the central area of the country, but not beyond. Today there is no public network of trucks for trucks. The challenge is not only technical, but also logistical and economic: how many trucks will need to justify a hydroiner? ¿Where to place them To cover routes without wasting resources? In scenarios like Californiathe order of dozens of high volume stations is projected to serve several thousand trucks towards the beginning of the next decade. Chile will have to solve its own puzzle. The big question is not whether hydrogen works, but it is worth betting on it. In long -running trucks, it has clear advantages: autonomy, quick recharges, zero emissions and lower impact of weight than in pure electric. But it is still a expensive technology, with a limited refueling network and a lower energy efficiency compared to other options. It is not a universal solution, but a useful tool on the right place. That is precisely what Chile is trying to find out: if the hydrogen fits on its real logistics map. Images | Walmart Chile In Xataka | Welcome to the silent collapse of energy: In the US, AI is beginning to drain the country’s electricity

The industrial paradox that has put worldwide trade to the limit

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In Europe, steel costs less than a bottle of water. In the United States, it costs almost double if it comes from abroad. And in China, it produces so much that the world no longer knows what to do with it. According to estimates by the Organization for Economic Cooperation and Development (OECD), The excess world capacity will reach 721 million tons within two years. And no one is willing to stop. Steel that is left over. The steel industry lives a perfect storm: global overproduction, state subsidies, fall in internal demand in China and protectionist policies. In a report for the New York Times They have explained it through the Tata Steel plant in Ijmuiden (Netherlands), one of the most advanced in Europe. It manufactures steel on commission for high precision applications. Even so, the company announced 1,600 layoffs this spring, while 18,000 jobs were cut throughout the European Union and nine million tons of capacity were closed in 2024. The background reason, As explained by the same mediumis the avalanche of cheap steel from China, which manufactures more than the rest of the combined world. This overproduction, fueled by government support and lower environmental standards, has flooded global markets, forcing traditionally non -exporting countries such as South Korea and Japan to seek buyers desperately. A scale problem. Steel is much more than an industrial product. As He remembered for the New York environment Atlantic Council researcher Elisabeth Braw, steel is one of the few goods that every country wishes to have “in any circumstance.” Its use ranges from food cans and forks to war tanks and combat planes. However, there is another aspect to take into account: steel pollutes. As We have already explained in Xatakaeach ton produced emits two tons of CO₂, which is equivalent to 7% of global emissions. This makes steel an obstacle to achieving climatic objectives. The paradox is clear: the world needs less steel, but nobody wants to be the first to close ovens. The industry is too big to abandon it, but too inefficient to sustain it as it is. This generates a vicious circle between price drop, minimum margins, lack of investment in clean technologies and greater pollution. The King of Steel. China is not only the largest world producer of steel, but also exerts a disproportionate influence on the global market. It produces more than the rest of the combined planet, largely thanks to a more lax state and environmental regulations system than in the West. According to data from the National Statistics Office cited by BloombergChinese production registered in June the greatest fall in ten months, due to adjustments in the capacity and government pressure to contain internal competition. Even so, more than 60 % of Chinese gatherings are already profitable, a notable leap compared to 30 % of just a year ago, driven by the rebound in demand in sectors such as automotive, machinery and, above all, exports. These exports have continued to grow despite international tariffs and commercial tensions, flooding markets in Europe, Asia and Africa with steel at dumping prices. This dynamic has reduced the margins of Western steel and left them without sufficient resources to invest in low carbon technologies, a problem that the OECD considers a critical obstacle to achieve the climatic objectives. With an still weak internal consumption for the real estate crisis, Beijing seems to bet more and more to export its excess steel as an economic influence tool, which multiplies clashes with the United States and Europe. Another power wants to face. The United States also wants to regain control of its industry. In January 2025, then President Joe Biden blocked the purchase of Us Steel by the Japanese Nippon Steel, claiming national security motifs. The decision, backed even by Donald Trump and by the unions in the sector, generated diplomatic discomfort in Tokyo and tensed the relationship with one of its main strategic allies. Six months later, that same logic translates into terrain conversions. In an article for The Washington Post They have detailed as in Weircon (Western Virginia), a city forged by the steel, the company Form Energy has occupied part of the vacuum left by the closure of the local steelter, hiring more than 400 workers – many of them extrabajadores of the steel – to manufacture energy storage batteries. Although initially driven by federal subsidies, the initiative has even survived the cuts of the Trump administration, and represents an attempt to reindustrialize without fully renouncing the steel legacy. The message is clear: the United States does not want to let your steel, your industrial narrative, fall into foreign hands. And Europe is trapped. In all this triangle, Europe loses ground, trapped Between the Chinese dumping and Tariff hostility of his Atlantic ally. And now, in addition, committed to buying massive amounts of fossil fuels to avoid major sanctions. Being more concrete, Europe has some of the most advanced gaits in the world, such as the Tata Steel plant in Ijmuiden, the Netherlands, which manufactures specialized steel for batteries and high -end cars. However, he is facing a perfect storm: high energy costs, strict environmental standards, unfair competition and political pressure. Despite attempts to modernize – like Tata’s plan to go to hydrogen – the necessary investment is counted in billions. In addition, American tariffs have hindered European exports, just when block countries need income to finance ecological transition. As for the United Kingdom, the government has had to intervene high ovens and subsidize plants to avoid massive closures. And in Germany, European industrial bastion, the approaches face the largest decline in decades, with a 11.6 % drop in production during the first half of 2025, According to The New York Times. Where does steel go? The steel faces a crossroads: between the industrialization of the twentieth century and the ecological demands of the 21st century. The only sustainable output seems to be green steel. Companies such as Swedish SSAB have already begun to produce it through … Read more

If something matches all mortals, it is the limit of 100 ml in the plane’s hand luggage. That is about to end

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100 milliliter boats in a transparent bag of up to a liter of capacity. That is the limit that everyone, absolutely everyone, we have tax if we want to wear liquids in hand luggage when traveling by plane. But that measure, dating from 2006, looks close to being eliminated in the European Union. The reason? The new 3D scanners That, little by little, community airports begin to populate. But let’s start at the beginning. Why 100 ml? To understand the why we have to go back to 2006. The 11-S attacks in 2001 caused, among other things, an important hardening in security measures Airport. With this tragic recent event, in 2006 the CIA and the MI5 frustrated an attempt of attack that sought to explode several aircraft in full flight using two hidden liquid explosives in bottles: acetone peroxide and hexamethylendiamine triperoxide. From then on, the authorities decided to limit the maximum capacity of the boats to 100 milliliters. The figure is not trivial. According to explained Kip Hawley, former director of the TSA (Transportation Security Administration), some explosives need to have “a critical diameter to achieve an explosion that causes damage.” The container size is, therefore, a self -safety measure itself as conventional X -ray escapes They cannot detect Liquid explosives reliably. Image | Roberto Arias Yes, an attacker could devote himself to mixing the liquid of several small bottles in a larger in full flight, but the liquid explosives are very unstable, so mixing them on board can end quite badly for the attacker. Acetone peroxide explosions They are 80% more powerful than those of the TNTbut it is a much more complicated compound to manipulate, to the point that a stronger blow of the account can cause an explosion. The new scanners. The arrival of C3 scanners, however, has the potential to change the rules of the game. These scanners use computerized tomography to generate three -dimensional luggage images, so that the operator can see the content without the passenger to open the suitcase or backpack. Yes, but no. These scanners have gone, little by little, reaching European airports. In fact, until September 2024, some airports allowed to pass security control with liquids above more than 100 ml. However, last year the European Union activated a temporary restriction due to a technical problem in the scanners. First in the HI-SCAN 6040 CTIX and, finally, in all others. That is why right now, even if you go through a new scanner, liquids are still limited to the capacity that accompanies us since 2006. Out limits, but calm. As reported from Brussels, the European Union intends to eliminate this limit as soon as possible. Only the approval of the European Civil Aviation Conference (CEAC) is missing, according to the Italian newspaper Corriereit could come as soon as today or Monday. Now, the reality is what is: there are few airports that have these scanners. According to him Airports Council International Europeas of July 2024 there were only around 350 scanners in 13 countries. What does that mean? That the measure will not be removed from all airports. “It will only affect those airports that currently have this state -of -the -art team of scanners,” they point out from the commission. When will it happen? How before and imminently, they expect from Europe, although there is no concrete date. Cover image | Xataka In Xataka | Of course, Ryanair’s workers will try to catch you with the size of the suitcase. The salary is going in it

The strokes have become a huge silent health problem in Spain. And there are ways to limit risks

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Every year 90,000 cases of strokes are produced in Spain that leave 23,000 deaths on average, According to the data of the Spanish Society of Neurology. This number could be significantly reduced, after all, many of the Risk factors which are associated with this type of event correspond to behaviors and habits that we can modify. Before reviewing what the risk factors are controllable or not, associated with the stroke, maybe it is appropriate to consider us What exactly is an stroke. The stroke or stroke (stroke) occurs when the blood flow that reaches a part of the brain is interrupted or drastically reduced. There are two types of accidents: ischemic and hemorrhagic. The former are the most common, are produced by the blockade of one of some circulatory route, for example by a clot or its narrowing as a result of fatty deposits. Hemorrhagic strokes for their part are produced by the breakage of a blood vessel. There is no exact list of risk factors that are related to these episodes since there are numerous overwhelms and interconnections Among these factors. Nor can we make an accurate distinction between the factors that we can control and those that do not. A clear example is that of diabetes. This disease is a risk factor in the appearance of ICUTS. Suffering or not this disease is not under our control, but we can avoid factors that in turn are linked to it. Despite the difficulties when delimiting these concepts, experts estimate that controllable risk factors are associated with 60% and 90% of the risk of suffering a stroke. That is, avoiding these factors we can reduce very significantly the risk that this type of event will be triggered in our brain. And what are the risk factors on which we have the greatest control? According to the National Heart, Lung and Blood Institute From the United States, controllable risk factors include blood pressure, obesity, physical inactivity, poor diet and tobacco. According to the American medical institution Johns Hopkins Medicinea blood pressure of 140/90 or higher is a factor that can condition our probability of suffering such an accident. Obesity, food and physical inactivity They are clearly interconnected risk factors. Smoking is one of the Risk factors More widely mentioned, but alcohol and some recreational drugs such as intravenous or cocaine are also related to an increase in the risk of suffering from an stroke. Some legal substances such as the contraceptive pill have also been related to an increased risk of stroke. With anxiety, depression and stress, something similar occurs than with other diseases: we have a certain degree of control, but this can be very limited depending on the circumstances of each person. Something similar happens with the environment in which we live: although residing or working in contaminated areas can aggravate our risk of suffering from an stroke, changing work or residence is often not in our hand. What we cannot change Some of the risk factors that we associate with the stroke totally escape from our control. Maybe age is the most important: Age. As we become greater the possibilities of suffering a stroke are increasing. Sex is another factor linked to the appearance of this disease and in a unique way: it is fine at an early age men suffer from these accidents more frequently, the greatest life expectancy of women means that throughout life these suffer more such problems. Different ethnic backgrounds can lead to different levels of risk: in the United States African -American, native and Hispanic people have a higher risk of suffering a stroke. Finally, Genetics And family history can also be considered risk factors, especially in cases where a family member has experienced one of these events at earlier ages. In addition to the risk factors, it is worth remembering what are the main symptoms that accompany these events in order to better identify an stroke and improve the chances that whoever suffers it receives medical assistance on time. There are a few key factors that can help us Identify an stroke quicklybut there is also a challenge of symptoms that can also be associated with strokes. Among the Key symptoms There are the loss of strength or sensitivity in the face, arm or leg, which usually swams to a single side of the body; Confusion in speech, for example in the use of unconnected words; sudden loss of vision; dizziness, loss of balance or the appearance of a severe headache without a clear origin. In Xataka | We have a new and promising treatment against the consequences of stroke (and has been created in Spain) Image | Anna Shvets

Xàbia set a capacity limit and access control in its two most famous coves. The problem is that nobody wants to take care of it

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In Xàbia they live around 30,000 people. At least according to the INE data, which only formally registered neighbors in the town. If we talk about the summer months and include visitors in the equation, the thing changes and that figure It multiplies exponentially. And it is understandable. Xábia is known for its landscapes, its gastronomy and beaches and coves as portitxol or grenadella. The problem is that this attractive threatens to be a collapse condemnation. One that this year promises Leave images of access to saturated sand. The beaches, face and cross. Having a beach near home in summer is a blessing. And an ordeal. Almost a year ago the residents of O Hío, in Cangas, a town in the Baixas Rías very popular for their sand, protest tourist that suffers every summer. To make clear their position on a Sunday they began to cross a village zebra crossing for minutes and minutes, blocking the traffic of access to the beach area. “The neighbors have the right to live. It is an avalanche of cars that not only contaminates, but affects everyone’s life because they park where they want,” regretted A neighbor. The Baixas Rías are not the only ones who deal with tourists in search of paradisiacal beaches. At the other end of the Peninsula, in Xàbia, the coves also attract thousands of vacationers, many of them aboard cars, which has forced the town to take action To control your transfer. Objective: Ordered beaches. Does Just a year The Alicante municipality presented a special device to control access to two of its most popular coves, the GRANADELLA and the Portitxolwith vigilantes in charge of supervising the passage and a regulated parking system in the street. The idea was simple: from June 1 to 21 (the “middle season”) the accesses were controlled only on weekends; From 21 that supervision became daily until September 13 and then the surveillance focused again on Saturdays and Sundays until October. It was not the only measure. Alicante Plaza Precise That in June 2024 the parking lot in PICT Tort began to be regulated, in the Cala Granadella, and La Barraca (Cala Portitxol). To avoid vehicle collapse, the City Council He chose to resort to a system with “barriers and payment”, which allowed visitors to park for almost all day (from 9 a.m. to 7:00 p.m.) paying nine euros for each vehicle. Once the parking lot was filled, the operators blocked access with barriers. “Avoid bottling”. And even City Hall He installed panels Informative on access roads to the coves so that drivers could know almost in real time the availability of parking spaces in Granadella and Portitxol. “The system tries to prevent the bathers from reaching the point where the control barrier is located and the parking lot is around,” I clarified The councilor of beaches. The idea was that these bathers could “opt for another beach and avoid bottling.” And arrived (almost) the summer of 2025. At the doors of 2025 Xàbia now meets a challenge, according to He revealed yesterday Levante-El Mercantil Valenciano. The newspaper ensures that the contest launched by the local government to take care of the control of access to Granadella and Portitxol seems to have not aroused the interest of any company. Last Monday the envelopes of the candidates opened and the executive discovered that no company had been presented. The exploitation of the service would not even attract the firm that assumed it in recent years. At the end of May Levant He already warned that Xàbia was approaching summer with the beaches without beaconing, anchoring buoys or supervision of access to the beaches. The tender of the surveillance, control and safety service in the coves of the town, which among other things aims to avoid the collapse of cars in Granadella and the Portitxol, would have been launched for a extendable year and a budget of almost 104,000 euros. Now, Clarify the newspaperthat hired has been deserted, the file has been filed and the coves face an uncertain horizon. “There are those who threaten to run over us”. The alleged disinterest in companies comes after drivers will alert last year of the encounters that live in the coves with choleric visitors. One of them admitted in August 2024 to Levante-El Mercantil Having met bathers who, when they find out that they cannot park in the area, take them with the workers, those who threaten or even love to run over. Without barriers or control, parking on the roads to Granadalla and the barrack also suppose a problem. When parking where they should not, cars complicate traffic and even reach hinder the step of firefighters and ambulances. In fact the sands already They have left saturation scenes. Images | Martin_vmorris (Flickr) 1 and 2 In Xataka | Spanish tourism faces the real risk of dying of success. There are already guides that advise three of its great destinations

more expensive light and marketers to the limit

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It has been a month since the great blackout that left the entire Iberian Peninsula. Since then, the national electrical system has been operating under a new extreme surveillance protocol: “reinforced operation.” Its goal is simple, but ambitious: avoid another total collapse. Its effect, however, begins to feel in the pocket of companies, marketers and consumers. Reinforced operation? Electricity and the Government have chosen to contain renewables and activate backup technologies such as gas, hydraulics or nuclear to gain stability. These sources, although more predictable, are also more expensive. But this operational turn has a price: renewable energy is being left out, cheaper, in favor of more expensive conventional technologies. As He has collected Five days, this new strategy has triggered the participation of traditional plants in the so -called adjustment markets or technical restrictions. So is there a contradiction? After the blackout, many pointed to the low inertia of the system, associated with the high penetration of renewables, such as the great culprit. However, like has collected this medium In an analysis by Matías Zavia, the peninsular electrical system counted in the moments before collapse with an “according to European recommendations” levels: 2.3 seconds, above the minimum threshold of 2. Both Minister Sara Aagesen and Secretary of State Joan Groizard have confirmed this data in parliamentary headquarters. The technical explanation that gains force points to a chain of failures: anomalous oscillations, Almost simultaneous generation surgeons and disconnections. It was at that critical moment, with the peninsula already isolated from France, when the low inertia aggravated the final fall. It was not the cause, but the collapse accelerator. In the absence of the official report, planned for the coming months, the blackout is emerging as a complex structural failure, not as a simple excess photovoltaic. The real problem: a shooting price. Since this reinforced operation was activated, the costs of the electrical system have shot. According to El Confidencialthe so -called restrictions techniques and Adjustment services – requirements necessary to maintain the stability of the network – have been remarkable. The problem is that these costs are initially assumed by marketers, especially the smallest and independent, which do not have their own generation capacity and have to buy this energy in markets managed by Red Electric. According to data the Independent Energy Marketers Association (ACIE), collected by the confidentialthe average cost of technical restrictions has gone from € 11/MWh in April to € 24/MWh in May, and at specific times it exceeds € 30. This pressure has led to several marketers, such as totalenergies, Moeve or Factorenergy, to send a letter to Red Eléctrica requesting clarity and a temporary forecast of these extraordinary measures. It has already been seen in the light bill. Starting with the almost 10 million consumers host of the regulated rate (PVPC) that have seen how their receipt At least four euros rose in May. And what began as an extra cost for companies, also begins to move to private clients and companies of the free market. In B2B contracts, some marketers have begun to introduce an “antiapagon rate”. As it picks up fiftiesthe client assumes up to € 12/MWh in adjustment costs, and what exceeds that figure is impact at the end of the month. In the case of households, where contracts cannot be modified easily, companies choose to raise the price of the megavatio in renewals or new offers. The dilemma is clear: raise prices or assume losses. A market to the limit. Independent marketers denounce that Red Electrica has increased costs without offering clarity on how they are calculated or until when they will be maintained. This uncertainty prevents planning and leaves those who do not have financial muscle to cover this volatility, According to El Confidencial. The pressure of the sector has also reached the institutional level. Acie, which brings together 20% of the market, has sent formal letters to Red Eléctrica and the Ministry for Ecological Transition asking for explanations and collaboration, such as He explained Fifodies. To date, they have not received a response, which increases the tension between the operators of the system and the most vulnerable actors in the electricity market. With an ignition system … The risk is not only a more expensive invoice, but a more concentrated and less competitive market. If independent marketers continue to carry costs without certainty or regulatory support, many will not survive. And if they disappear, consumers will have fewer options, more dependence on large electricity and less power to negotiate prices. The reinforced operation maintains the system on, yes. But it can also be extinguishing an essential part of the market: its diversity. With the technical report even on the horizon, what happens in the coming months will mark not only the stability of the network, but also who can continue to compete in it. Image | Pixabay Xataka | The more you know about the blackout in Spain, the less guilty the lack of inertia seems to be renewable

A safe and without limit of devices that you can use wherever you want for just over 2 euros per month

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We are used to using the house Wi -Fi to do all kinds of things on the Internet, including some in which we have to introduce delicate information, such as the bank’s password, among many other things. Any security measure that we can add to our routine will come very well, even more so if we plan to make these movements In a network of which we do not know your safety, Like a hotel wifi. There can come great to us a tool like A VPNwhich will give us that extra layer to protect our traffic. There are many alternatives, But few as economical as Surfshark: It costs just 2.19 euros a month. Surfshark Starter Subscription – Monthly * Some price may have changed from the last review An economical, safe and any device Yes, there is Free and safe vpn That we can use to get out of trouble when we need it. The problem is that these do not usually offer many options, in addition to their speed, let it be desired most times. Just there, it is worth considering payment options, especially if we can get one that is as economical as the case of Surfshark. This VPN is an interesting option beyond the price. It is very useful for us to always carry it with us, either on the mobile, on the PC or on the device we want, since there is no device limit. In addition, it also stands out for being very simple to use, so you do not expect a complex interface. On the contrary. It is also worth noting that Surfshark VPN is included in the Starter Plan. This comes with an additional tool included ALTERNATIVE IDideal if we do not like to enter personal information on certain web pages. Thanks to this tool, we can create virtual data that we can use where we want. This plan, as we have said a little higher, has a price of 2.19 euros a month. That means that we can have two years of the service complete for a total price of 55.56 euros, a discount if we take into account that the price that this period of time is normal is 439 euros. And there does not end the thing: We will have 3 months extra giftso we will enjoy 27 months in total. Some of the links of this article are affiliated and can report a benefit to Xataka. In case of non -availability, offers may vary. Image | Surfshark In Xataka | Why it is dangerous to connect to public wifis and what you should do to protect yourself In Xataka | Better VPN: Guide with the 17 best services to protect your online privacy

Its solar panel in tandem already exceeds the theoretical limit of silicon

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The efficiency of solar panels always andStá in object of studyand the only country capable of developing new advances is China. In fact, the company Longi has achieved have even a certificate of the National Renewable Energy Laboratory (NREL) of the United States. Short. The Chinese giant of the solar modules He has achieved A new record in solar energy conversion, reaching 34.85% efficiency in a pervskita solar cell in two terminal tandem. In this way, Longi has managed to overcome The previous 34.6% record that Longi herself held two years ago. A key technical advance. To understand the feat, it is important to know the tandem design. This structure combines an upper cape of Perovskita and a lower crystalline silicon, allowing to capture different ranges of the solar spectrum. Through a technique called bilayer interface passive, two layers are introduced that improve the passage of electricity between both active layers. On the one hand, lithium fluoride (LIF) acts as a barrier against load losses. On the other, the ethylendiamium diyoduro (EDAI) fills the nanometric scale holes, ensuring a more efficient load extraction. It’s not just about materials. The Chinese company has also redesigned the structure of the crystalline silicon, making the frontal surface more rough to facilitate the adhesion of the Perovskita and maintaining a standard texture in the rear to optimize the capture of infrared light. This texturing improves the absorption of light and, therefore, the efficiency of the panel. Achievement is not less. Apart from overcoming its own record, the Chinese company has overcome The so-called Shockley-Queisser limit. In other words, it has managed to exceed the maximum efficiency limit marked by 33.7% for a single union. However, tandem cells, which combine different materials such as Perovskita and silicon, can overcome this limit by taking advantage of a broader range of the solar spectrum from the theoretical aspect. For example, research has shown that tandem cells can achieve higher efficiencies 40%and theoretically, some configurations could reach up to 60% . Institutional support. Thanks to the participation of the universities project such as Suzhou and Hong Kong (HKPU), together with the Huaneng Clean Energy Research Institute, They have allowed A Longi perfects its silicon hetero -union technology and optimizing manufacturing processes, bringing Tandem technology to a more commercializable level. The next challenge. Longi has shown that the solar efficiency roof remains a mobile objective. However, he will now have this laboratory technology to the mass market. The durability of tandem cells, production costs and industrial scalability They will be key factors To determine if this record becomes a commercial standard or another technical advance without immediate practical application. Image | Pixabay Xataka | New record of efficiency of a solar panel thanks to the Perovskita. The “miraculous material” already exceeds the theoretical limit of conventional panels

The European space agency begins to limit when the Soviet ship will fall. Where is it a lottery

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Like some people, there are spacecraft that say goodbye giving the note. The Kosmos 482 Soviet Missionlaunched 53 years ago with the failed objective of reaching Venus, is about to star in one of the most unpredictable atmospheric resentments of recent times. The European Space Agency is following her live. The last prediction. According to the ESA Space Waste Officethe capsule will fall to Earth tomorrow, on Saturday, May 10, 2025, at 08:16 UTC (10:12 in Spain). Although it has been reducing, the uncertainty window remains quite wide, with an error of +/- 8.61 hours. This means that the exact moment and the location can still vary (for now only latitudes above and below the 50º are discarded), but the predictions are noted as the object approaches. A capsule of the Cold War. Throwed on March 31, 1972, the Kosmos 482 ship was a twin sister of the successful Venera 8 mission, which did perch on Venus. However, a failure in the upper stage of the Molniya rocket that transported it prevented that it escaped the earth’s gravity, leaving it in an elliptical orbit with the earth all this time. What makes this event special is not only the longevity of the capsule, but the fact that it was built to survive the infernal conditions of Venus: surface temperatures of 464 ° C, pressures of 100 atmospheres and accelerations of up to 300 g. I could survive the reentry. What remains of the ship, the descent capsule of half a meter in diameter and 495 kg, was designed to support the extreme conditions of the Venusian atmosphere, so there is possibilities that it reaches intact to the surface of the earth. To survive, the impact could occur at about 240 km/h, with a kinetic energy similar to that of a 40-55 cm meteor. The big question is whether the parachute system, after 53 years and with exhausted batteries, could work. In view of telescope, the object seems to be tumbos. Prediction map on the reentry of the Soviet probe Kosmos 482. Image: that Do not panic. Taking into account that most of the planet is water, the risk of causing personal damage is “extremely remote.” And the probability of reaching a person is even lower, from 1 between 100,000 million, according to ESA. To put it in perspective, it is about 65,000 times more likely to be reached by lightning In addition, being an object that probably arrives as one piece, the risks are concentrated and therefore are lower than those created by the reentry of a rocket, which disperses multiple objects of metric size over a large area. Let’s take advantage of science. The almost spherical and smooth form of the Kosmos 482 makes it an ideal object to measure atmospheric density into very low orbits. Every time its elliptical orbit passes through perigee (the point closest to Earth), loses height due to atmospheric drag. This “accidental experiment”, which is being registered live by ESA, will provide valuable data on this type of event so far of the reentry. Perhaps a cold war ship shows us some lesson on how to reduce the problem of space garbage. Images | THAT In Xataka | There is an old Soviet probe about to fall on earth. The disturbing thing is that it was designed to resist hell

The coffee situation was already limit. Tariffs threaten to shoot their price at unbearable levels

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The situation of Coffee Market in 2025 It is a gallimatisms. Different factors have caused the price of coffee to experience one of the Greater climbs in historywe must all add one more: the US tariff pulse with the rest of the world. And there is a great question about the table: if the great toasters stop selling both to the US because the costs are unbearable, will they adjust production or sell their surpluses cheaper to the rest of the world? The answer is that … it seems that everyone will make war on their own. Problems everywhere. The 2024 coffee harvest faced a series of problems that caused raw coffee prices to increase drastically. Extreme climatic factors how droughts and irregular rains hit the two Main coffee producers (Brazil and Vietnam). This has affected both the production and the quality of the grain, but they have also caused transport cuts due to Problems on the Suez channelwhich has delayed shipments and increased costs. All this, in addition to other factors, has caused coffee to be going through strong inflationary pressure, with increases that, depending on the week, have reached up to 40% compared to what is seen a year ago. It is something similar to what is happening with cocoa and that has turned coffee into one of the thermometers of the global economy. The blissful tariffs. The one that was missing in the equation was … Trump. Tariffor “tariff” has become the word Favorite From the new president of the United States, and these last weeks we have lived an authentic tariff syrup between countries. It is something that affects markets such as cars, oil, technology, Digital services, food products And, obviously, coffee. These tariffs proposed by the United States are a protectionist measure, but also a throwing weapon with a clear intention: threaten countries To do what the USA wants. A clear example is the Tariff threat to Mexico and Canadatwo of the main US business partners that originated Dimes and Diartes among the presidents of the countries. And also We have seen it with Colombia. If the Latin American country did not yield to the aggressive immigration policy promoted from the White House, the threat was to impose rates of 25% and up to 50%. And what product that the United States loves is one of the world powers? Coffee. Hitting the pocket. According to the Observatory of Economic Complexity, in 2022 Colombia exported 15.6 billion dollars To the US, of which almost 1.8 billion corresponded to coffee. Coffee is the great merchandise exported by the country, in terms of value, only behind oil. The New York Times warned that imposing 25% or more to Colombian goods would impact the pocket of the Americans and here there are two options: or stop consuming so much … or assume the extra cost. Variety of postures. Boris Wüllner is the CEO of Green Coffeeone of the largest producers in Colombia that has been investing great sums In the country. In an interview for The RepublicWüllner comments that it is time for companies to look for the way of being more efficient in the production chain, even toasting the grain on American soil to “avoid a larger tax effect.” In fact, he sees it as a business opportunity. While Latin American coffees will be taxed with 10%, those of Indonesia and Vietnam will face tariffs of a 32% and 46% respectivelywhich will allow, despite those 10%tariffs, the Colombian product is more competitive. Wüllner also considers that it will be the consumer who absorbs the increase that these tariffs will imply, but that they will not stop drinking coffee. Different opinion have from Europe, specifically from Lavazza. Touching the limit. Its executive director, Antonio Baravalle, believes that consumer tolerance is reaching the limit due to high prices and is clear that this increase in costs for consumers is what has generated “an average contraction of the world coffee market of approximately 3.5% in the last two years”. And that the tariffs had not yet come into play. From the US National Coffee Association they share this opinion, commenting that “the great price increase is eaten the liquidity of the customers. They do not have all the money to buy what they need.” Beyond producers and USA. The issue is that it is not an issue that affects only the directs involved. “If the US imposes a 25% tariff on all Colombian exports, the coffee market, which is already red, will heat even more,” I commented A few days ago Javier Blas, Bloomberg columnist. Colombia is the third producer worldwide of a variety, the Arabica, which is also the most appreciated among specialty coffee shops. And that the Colombian market sets out in the United States could impact the rest of the world. Liquefied natural gas. As? With more price increases to cushion the coup to producers and toaster. But … what if the situation were different? Here we can look at the LNG. If large toasters reduce purchases in the US, the most likely scenario is a combination of production and detour adjustments to other markets. In other sectors, such as liquefied natural gas, we have already seen similar dynamics: when US imports decreased after fracking boomexporters they redirected Part of their sales to Asia and Europe, and even slowed their production. Although coffee and LNG play in different leagues (one is an energy raw material, the other a perishable agricultural product), market logic is comparable: less demand in a key destination forces to look for other markets or produce less to avoid collapsing prices. That could be the strategy of large coffee producers, who are already preparing for it optimizing costs and logistics, as Wüllner proposes. Hope? Depends. On the one hand, the FAO (the United Nations Food and Agriculture Organization) estimates that The worst has not happened And that, because coffee has no alternatives, although prices rise, consumers will continue to pay them. On the other, … Read more

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