Month: August 2025

The effect of heat on our heart rate when playing in summer

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It is the summer stamp: go running or riding by bike and, a few minutes later, the pulsometer is triggered to figures that do not correspond to the effort. And it’s not a strange thing to see. It is the body that is trying to respond to a series of stimuli such as heat and exercise, and understanding its physiology is important for Do not turn sports into a health risk. Exercising in summer is a great challenge. In this situation the body is forced to respond to two specific demands. On the one hand, Muscles in action need a lot of energy in the form of ATP To contract. However, this is an inefficient process, since It only takes advantage of between 20 and 25% of the ‘produced’ energy releasing the remaining 80% in the form of heat. This energy in the case of not dissipating it correctly can raise internal body temperature by 1 ºC every 5-10 minutes. How to avoid it. On the other hand, to avoid precisely that lethal overheating, the body thermoregulatory center located in the hypothalamus, Activate powerful cooling mechanisms. One of them is to pump huge volumes of hot blood from the body nucleus to the skin, causing it to be red by that large amount of blood that is going through the surface of the body. This double duty is the fundamental reason why the pulse shoots and becomes the most sensitive and critical indicator of the stress to which the body is subjected The organism has to compensate. These two situations cannot be carried out in parallel, but A balance must be achieved. And it is that when the system is taken to the limit by the intensity of the exercise and the severity of heat, something has to yield. Or blood flow is reduced to the muscles, limiting the ability to maintain rhythm, or the flow to the skin is committed, limiting heat dissipation and increasing body temperature to dangerous limits. Understanding this internal negotiation is key to understand why training in summer is much more than a simple matter of willpower. The skin becomes a giant radiator. The first and most powerful response of the body to the increase in skin temperature and body nucleus It is body vasodilation. Controlled by the ‘thermostat’ of the body, the preoptic area of ​​the anterior hypothalamus, this mechanism causes the blood vessels close to the skin to widen and make it become a refrigerator. Under resting conditions and neutral temperature, the cutaneous blood flow is just about 300 ml/min. However, during an intense exercise in a hot environment, this flow It can shoot until reaching 7 or 8 liters per minute. Something that also represents around 50 and 70% of all cardiac output. And this is a simple deviation of resources with the objective of dissipating heat by convection and radiation. Although it is not free. It has an important cardiovascular cost. The heart accelerates to compensate. The fact of opening the ‘pipes’ that lead the blood to the skin causes the heart to have to activate an important compensation mechanism so that the organs remain perfused. We talk about heart rate, which will be increased. The objective is to maintain cardiac output, so that blood pressure is stabilized despite the low peripheral resistance due to vasodilation. A crucial aspect of this process is speed. The initial increase in heart rate is an incredibly fast neural reflex, triggered by Thermal skin receptors. This response often precedes any significant increase in central body temperature. This shows that the body not only reacts to heat, but anticipates it, preparing the cardiovascular system for the thermoregulatory battle that is coming. The key is in cardiovascular drift. Any athlete who trains with a pulsometer in summer will have noticed a disconcerting phenomenon: even maintaining a constant rhythm, the pulse tends to rise progressively throughout the training. This is something that has been documented and called ‘cardiovascular derives‘, which is defined as the gradual and continuous increase in the heart rate that occurs during a prolonged exercise of constant intensity, accompanied by a decrease in systolic volume (the amount of blood that the heart pumps in each beat). And precisely the heat stimulates the two mechanisms that drive this phenomenon: The increase in skin flow by vasodilation. This causes blood to ‘stagnate’ temporarily on the periphery, which reduces venous return. This means that the heart does not fill so much in each beat, and therefore the amount of blood that will expel will be less. Dehydration Sudoration is essential to cool the complete system, but it entails a loss of body fluids, mainly from the blood plasma. This again reduces that the blood returns to the heart so that the same volume can be pumped. And to compensate the only thing left is to increase the heart rate. The pulse increase per centigrade grade. Once the ‘why’ of this increase in heart rate is known, an athlete is interested in knowing the ‘how much’. And the reality is that studies have established a very useful general rule to know how our body temperature increases when exercising: In dry heat conditions, with environmental temperatures above 24 ° C, the heart rate Increase approximately one beat per minute for each celsius degree of temperature increase. In wet heat conditions, the impact is multiplied. Here the increase in heart rate triggers between 2 and 4 beats per minute for each degree Celsius that increases the ambient temperature. This difference is not trivial. Exercise at 34 ° C in a dry climate (10 ° C above the threshold of 24 ° C) could involve an increase of about 10 beats per minute in the heart rate for the same effort. On the other hand, to those same 34 ° C, but with a high humidity, the increase could be 20 to 40 beats per minute. This additional load on the heart explains why we call as ’embarrassing’ feels much more … Read more

More and more voices think that keeping food in plastic is not a good idea

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A kitchen that boards has a drawer up to numerous tuppers with the tapas on the other hand. Although it is not the only place, we open the fridge and find even more stacked: some keep the leftovers of noon, others contain freshly taken food from their original container. Behind this daily life – so assumed that goes unnoticed – hides an uncomfortable question: are we storing our food well? The plastic under suspicion. Light, cheap, resistant: plastic became the great ally of modern cuisine. However, recent studies call their safety when they come into contact with food. A BBC report He explained That thousands of chemicals are part of their composition and that some can migrate to food, especially when they come into contact with fatty, acid or hot foods. The problem is not only the food we keep, but also the use we give: the microwave, the dishwasher or the rayons due to repeated use accelerate the release of compounds. And microplastics. To them is added another invisible problem. As Delish magazine has pointed outtuppers release microplastics, tiny particles that have already been found in blood, lungs and even human placenta. A health problem. The debate about tuppers is not a simple kitchen detail: what is at stake is hormonal health. Many of the compounds that migrate from food plastics are classified as endocrine disruptors, substances capable of altering the balance of our hormones. The best known case is bisphenol A (BPA), used for decades in rigid plastics and linked to fertility and development problems. The European Food Security Authority (EFSA) recently reviewed its safety and reduced tolerable intake at a level 20,000 times lower than the previous one. Something similar happens with phthalates, employees to give flexibility to plastic and also associated with hormonal and reproductive alterations, As the BBC has detailed. Plans b. However, trusting alternatives is not a guarantee either. The Guardian He has warned that compounds used as BPA substitutes – the so -called BPS and BPF – have similar effects on the body. AND, According to a study cited by The I Papermore than 3,600 chemicals of plastic containers present in humans have been identified, many of them barely studied. Therefore, some expert voices are overwhelming. Lisa Zimmerman, from Food Packaging Forum, summarized it like this For the same medium: “If you care about your health, you should throw your plastic tuppers and use glass or steel.” The stations also influence. Beyond chemicals, summer heat adds another threat: bacteria. In statements collected by El Confidencialdietitian Judit Carreira, from the Sant Pau Hospital, explained that high temperatures favor food poisoning. Its advice is clear: transport the taperes in thermal bags or portable refrigerators, avoid exposing them to the sun and, above all, separating raw cooked in the fridge to prevent cross contamination. “When you return from the supermarket, the meat and the raw fish should be removed from the container and stored in a clean taper,” He has insisted. He also remembered the four basic food security rules: clean, separate, cook and cool. So, throw all my tuppers? It is not about emptying the kitchen, but of changing habits. Various media They coincide In a series of recommendations: Avoid reheating in plastic: although the container indicates “suitable for microwave”, heat accelerates chemical migration. Reserve them only for cold or dry foods, never for oily, acid or hot meals. Replace them if they are scratched, deformed or with persistent smell. Opt for glass, steel or ceramics for hot meals or prolonged conservation. Now, not all alternatives are perfect. Ceramics, although it is considered safe if it is certified, can be a problem in cases of artisanal productions. The mail reported a few months ago The case of a family of Getxo (Vizcaya) poisoned with lead after drinking for years of an enameled ceramic jug bought in Andalusia. Lead, prohibited in pottery since the 60s, can cause abdominal pain, anemia or neurological alterations. An easier life, at risk. It is true that tuppers have made our lives easier, but they have also exposed us to a chemical soup not yet known. Science still investigates the cumulative effects, but there is consensus on something simple: heat, fat and plastic do not combine well. Perhaps the true luxury of modern cuisine is not accumulating containers of all sizes, but choosing containers that take care of our health. Image | Unspash Xataka | I have a decade teleworking and I have discovered the best productivity trick: plan a weekly meal menu

More and more people are stopping publishing things on their social networks

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There was a time when opening Instagram meant to look out to the life of our friends. A smoking coffee under the Valencia filter, a badly framed selfie on the beach or the pet of a colleague yawning. It was an improvised, domestic showcase, a mural of shared banalities that, paradoxically, made us feel closer. As The New Yorker recalledthat “breakfast photo” represented the utopian dream of social networks: that millions of common people could publish fragments of their lives with minimal intervention, from the most trivial to the most intimate, and that that worldly record became something valuable, a “dynamic file of reality from the ground.” More than a decade later, the landscape is another. Yes in 2018 The BBC calculated That about 40% of the world’s population used social networks, dedicating about two hours a day to share, today users are still connected, but less and less willing to show their lives. From vacuum feed. The decrease in the public use of networks is already evident. According to a Morning Consult report28% of Americans publish less than a year ago, compared to 21% that does more. Among generation Z, just 18% admit to posting daily. In a recent article, the BBC has confirmed the trend: One third of users publishes less than before, with a descent specially pronounced among those under 30. And the phenomenon is not limited to the United States. In Spain, Iab Spain has presented the 16th edition of the Social Network Study 2025in collaboration with praise, which confirms a similar wear: 33%of Internet users have abandoned a platform in the last year, especially X (28%) and Facebook (15%), but also Pinterest (15%) or LinkedIn (12%). The main reasons are the lack of use, loss of interest and boredom. The hangover of publishing. This withdrawal has even its own name. National Public Radio (NPR) He has baptized it as Grid Zero, The Instagram phenomenon in which more and more young, especially from the Z gene, erase all their publications and leave their profiles as a “blank canvas.” Adam Mosseri, Chief of Instagram, acknowledges: “Adolescents spend more time in private messages than in stories, and more in stories than in feed.” Instagram itself has detected that young people prefer ephemeral or private interactions. His cultural researcher Kim Garcia has summarized it as follows: “Gen Z has award to permanence and the fingerprint. They do not want their entire personal change process to be publicly exposed.” According to NPRhe Grid Zero It works as an immune system against digital addiction: hide the feed, take refuge in the intimacy of chats or private accounts is a way of protecting. This modesty contrasts with the millennial era. For those who border medium age today, networks were the natural space of the exhibition. The hangover was predictable, as the writer Kyle Chayka has pointed out In an interview with the BBC: “We learned the disadvantages of sharing your life online during the 2010s.” Unless you want to be an influencer, it is no longer worth it: the disadvantages of publishing are too large and the advantages do not reach. ” Privacy and fear of judgment. The FEED blackout responds to different variables, but the first is the need to take refuge in oneself. According to online psychologymany users choose not to publish to protect their privacy, take care of their mental health and avoid risks such as harassment or unnecessary exposure. However, in the case of gene z the phenomenon is more extreme. The nod mag He explained Digital hyperconcience: a simple “like” can be interpreted as a political or identity statement. The fear of cancellation leads many to interact as little as possible. The young Kanika Mehra (24) He has recognized it for The New Yorker: “We are all voyeurs now: we keep looking, but we no longer post, because publishing generates a ram of vulnerability.” To this climate is added the sensation of inadequacy in the midst of global crises. A waitress in Washington has told The New Yorker that he erased some happy selfies because “with everything that happens in the world, I was ashamed to seem frivolous.” From the social to consumption. Beyond personal motivations, there is an undeniable fact: almost everything we see today in networks is consumed. “The platforms have become less social; they look more like television, full of mercantilized content, lifestyle aspirations and advertising,” Chayka has summarized in the BBC. Besides, The New Yorker also coincides: The feeds are dominated by influencers, war headlines, political propaganda, videos generated by AI and “sponcon.” Amateurism, the initial engine of the networks, was replaced by careful production and light rings. And the data are there to confirm it: Morning Consult He has found that more than half of adults (52%) perceive the content of networks as “repetitive and tired.” And the Wall Street Journal He has pointed out that users feel that “the community is no longer there”; Instead, there is an endless commercial showcase. Although it is not an empty network. Silence in the feed does not mean abandonment of the platforms. On the contrary: we remain connected, but we move to more intimate spaces. Mosseri He has recognized it in an interview cited by WSJ: “All sharing between friends is going to direct messages. Today more photos and videos are sent by Stories, and more for stories than by the feed.” The BBC Reaffirms the turn: Personal content “has been oriented towards individual messages and private groups.” In Spain, the IAB Spain study Confirm What WhatsApp is the most used network: 96% of Internet users use it daily. The social did not disappear: he simply hid. Millennials, the new boomers? This hurts, but we enter generational. Millennials – among the ones I included – we grew up exhibiting our online life. Today we appear as the “digital boomers” in the eyes of the gen Z. from the new code They have explained it with irony: Millennial profiles seem outdated, full of poses, … Read more

Five economic computers from 329 euros

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There is less for the return to school, so if this school you need a laptop to studyin this article we have gathered a selection of models oriented to low budgets, having in mind whenever at least offer a Good value for money. HP 15 by 329 eurosan economic computer that comes with Windows 11 Home. Lenovo Ideapad Slim 3 Gen 8 by 499 eurosa laptop with Windows and 512 GB of SSD. Samsung Galaxy Book4 by 548.89 eurosan excellent computer with Intel processor and Windows 11 Home operating system. MSI Thin 15 by 599 eurosa computer with graphics card RTX 2050. Gigabyte G6 by 619.65 euros By adding it to the cart, a graphics card RTX 4060 and 1 TB of SSD. HP 15 If you want to spend little money or simply do not need a very powerful computer, the HP 15 It is one of the best options we can find in its price range. Mediamarkt has it for 329 euros And it comes with a 15.6 -inch screen, 8 GB of RAM and 256 GB of internal storage, Intel N100 processor and UHD Graphics graphics. In addition, it includes Windows 11 Homeso you should not install the operating system. * Some price may have changed from the last review Lenovo Ideapad Slim 3 Gen 8 A step above we find the Lenovo Ideapad Slim 3 Gen 8a computer that in Amazon has a price of 499 euros. This laptop has fast charge (Two hours of autonomy with 15 -minute load), it comes with a 15.6 -inch screen and its processor is the Ryzen 5 5625U. It also includes 16 GB of RAM and 512 GB of SSD, its graph is an AMD Radeon and comes with Windows 11 Home. Lenovo Ideapad Slim 3 Gen 8 * Some price may have changed from the last review Samsung Galaxy Book4 Although its catalog is more concise than that of other devices, Samsung also has some laptops. He Samsung Galaxy Book4 is located in Amazon by 548.89 euros And it stands out mainly for having a fairly thin design, but also does it for its technical file: 15.6 inches screen, Intel I5-1335U processor16 GB of RAM and 512 GB of SSD. In addition, it includes an Intel Iris XE Graphics and Windows 11 Home graph. * Some price may have changed from the last review MSI Thin 15 On the other hand, if what you are looking for is an extra power and performance, among the gaming laptops we have the MSI Thin 15whose price at Amazon is 599 euros. Assemble a 15.6-inch screen that offers a 144 Hz soda rate, it comes with 16 GB of RAM and 512 GB of SSD, its processor is the Intel I5-12450H and set up a RTX 2050 graph. The bad thing is that it comes without operating system. MSI Thin 15 (B12UCX-1682xes) * Some price may have changed from the last review Gigabyte G6 The computer with the best value for money of this list is the Gigabyte G6a gaming laptop found in Mediamarkt by 619.65 euros; The price will come out once the cart is added. This computer assembles a 16 -inch screen that offers a resolution of 1,920 x 1,200 pixels and a 165 Hz rate, comes with the processor Intel i7-13620h together with 16 GB of RAM and 1 TB of SSD and its graph is a NVIDIA GEFORCE RTX 4060. The bad thing is that it also comes without operating system. Gigabyte G6 (KF-73es894kd) * Some price may have changed from the last review Some of the links of this article are affiliated and can report a benefit to Xataka. In case of non -availability, offers may vary. Images | Andrew Neel in UnspashHHP, Lenovo, Samsung, MSI, Gigabyte In Xataka | What is the best portable computer to work in 2025. Tips and recommendations In Xataka | Best laptops in quality price. Which to buy depending on the use and eight recommended models

China has monopolized the battery market in just ten years. And the US only has one solution: South Korea

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China is the largest electric car exporter on the planet. In 2023 he exported approximately 1.7 million electric vehicleswhich represents more than 30% of its total car exports. Nevertheless, Its international expansion It is being seriously conditioned by the tariffs that are imposing USA or the European Union, among other regions with very serious difficulties to compete with the Chinese electric car. Largely the success of the country led by Xi Jinping in this industry strengthens its leadership in The production of lithium batteries. If we stick to China Fabrica electric cars 57% of batteries that these vehicles use. Catl and Byd are the largest lithium batteries manufacturers on the planet with A market share in 2023 34% and 16% respectively. This Asian country has reached this leadership position due to several factors. On the one hand it is The largest producer in the world of lithium and rare earths, which are the main raw materials used in the manufacture of batteries. In addition, it controls the processing of these materials and is capable of producing large -scale batteries and with a very competitive price. There is currently no indicator that invites us to anticipate that His domain of lithium batteries You will be threatened in the medium term. Even so, the US government is trying to create the appropriate conditions to put an end to China’s leadership in the battery market. South Korea is the strongest alternative to China in the battery industry At the end of July LG Energy Solution, the LG subsidiary specialized in the design and manufacture of lithium batteries, He signed an agreement of 4.3 billion dollars to supply iron and lithium phosphate batteries (LFP) to Tesla for three years. This plan is backed by the current US government and seeks to reduce the global dependence of electric car manufacturers of the Chinese Giants Catl and Byd. LG Energy Solution, Sk On and Samsung Sdi are the main battery manufacturers of South Korea LG Energy solution is The biggest battery manufacturer outside Chinaand, although it is a South Korean company, it is the best asset that the US has to end the Chinese domain. Catl and Byd have in their favor their ability to produce high performance batteries and with a very competitive price, which has caused LG Energy Solution, Sk On and Samsung Sdi, which are the main battery manufacturers of South Korea, Lose market share continuously. In fact, According to the consultant SNE Research Its combined market share has been reduced by 5.4% between January and June 2025. The Trump administration is determined to end this trend, and its strategy is to create in the US the necessary conditions to pave the way to South Korean batteries manufacturers and penalize Chinese producers. To carry out this idea has included A Catl, Byd, Envision Energy, Eve Energy, Gotion, Hithium and other Chinese batteries manufacturers in the list that lists the prohibited foreign entities. The purpose of this initiative is evident: it seeks to prevent US companies from buying batteries and components from China. If, despite this, they will be disqualified when accessing state subsidies. Image | Tennen-Gas More information | Volt Rush In Xataka | Historic record for China: its chips industry has produced in 2024 more than ever despite the sanctions

How much electricity produces each country with renewable energy, exposed in a graphic

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Europe has been Up on the Renewable Train. This summer they have SOLAR ENERGY PRODUCTION REGRESSESwe are installing new huge wind turbines And, although with contradictions such as import energy from Africait is evident that the continent carries a Cruise speed in renewables. However, that train goes to two speeds, with countries in which renewables are hardly nothing in their electricity generation. And it is something that we can perfectly appreciate on this map elaborated by Visual Capitalist. Vanguard. With Eurostat data until December 2024, we can see that The transition to renewables He goes with the wind in favor. The generation of energy from wind, solar, hydroelectric, the Geothermal and the biofuels They already represent values ​​that exceed 99% of the net electricity generation of some countries. In general, it is estimated that, as of December 2024, the European Union obtained almost 42% of its net electricity from the renewable sources, being wind and hydroelectric plant the fundamental legs of this change. Interestingly, despite all Advances in panel technology and wind turbines, the countries in which renewables are more important have as the protagonist the hydroelectric. This is the case of Albania, which leads the list by generating more than 99% of its electricity from renewables, or Norway. In the case of Denmark, a country that occupies third place, it is the wind that marks the guideline. To the tail… When we said that the train goes to two speeds, we refer to cases such as the Czech Republic, Moldova and Malta. In some areas of Central and Eastern Europe, the fossil fuels are still crucialand the three countries mentioned are the least proportion of renewables in their electricity generation. As a red lantern, we have Kosovo with just 8.8% of its energy from renewables. The sources. Something interesting is to know which are those renewables that are pushing clean energy in Europe. In Spain, for example, We throw ourselves into the arms of the plotbut the energy mix that has contributed to these numbers, depends a lot on each country, and in the European photo, the plot is in third place. According to Eurostat, wind energy meant 39.1% of the renewable energy produced in 2024, followed by 29.9% of the hydroelectric and 22.4% of the solar. The biofuel is far, with 8.1%, and the geothermal energy is marginal, contributing only 0.5%. Situation in 2024 A devastating advance. And beyond distinguishing in countries, if we look at the global situation, we see that more than 40% of the net energy produced by the EU in 2024 comes from renewables. According to Eurostat, 47.3% of electric production, which translates into 1.31 million GW/Hy an increase of 7.7% compared to 2023. Evolution of energy production during the last 35 years In that same graph We can see that fossil fuels have fallen by 7.2% compared to the previous year (almost the same as renewables) and nuclear, despite the plans of some countries, grew by 4.8%. We will see what course this has in 2026, since a Eurobarometer survey carried out in June 2025 Indian Strong support from EU citizens to the adoption of renewables, but we will have to see if that renewable deployment is compatible with another that is being performing ambitious and You need huge amounts of energy: the one Data centers. Images | Eurostat In Xataka | Something is happening with wind energy. Its deployment has stopped while solar energy grows unstoppable

A Google engineer moved to a truck parked on the company’s campus. The rent was saved and 90% of its salary

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The price of housing, whether rent or purchase through a mortgage, represents the main disbursement For anyone. However, it is an expense that we assume because it is not to anyone anyone sleeping outdoors. However, not everyone faces the issue of housing in the same way. Better a van. Business Insider History collected last year From Brandon, a 23 -year -old software engineer, who moved to San Francisco in 2015 to do summer practices at a Google branch. However, he met A Rent market for clouds. Instead of renting an apartment, Brandon opted for an unusual solution: living in a truck to save and pay their student loans Before buying a house. 2,000 dollars for sharing room. When Brandon moved to San Francisco, he agreed to one of the corporate flats that Google has in the city. There I had to share a two -bedroom floor with four people, for which I paid about $ 65 per night. That was about 2,000 dollars a month. “I realized that I was paying an exorbitant amount of money for the apartment in which I was staying, and I was almost never at home,” Brandon declared Business Insider. At that time, the young man began to gestate how his home would be for the future. Housing plan on wheels. The following year, Brandon He returned to work in Google Full time, but the young man was not willing to burn his savings. So He drew a planfacing the following year. Before starting his new adventure in San Francisco, Brandon bought a 2006 Ford truck with more than 252,000 for $ 10,000, using the advance they had given in Google for the signing of their contract. That would be his new home and had parked him in the parking lot of the office, so the young engineer says he never is late for work. With everything you need to live, but cheaper. His only fixed expenses were $ 121 per month for truck insurance, since he has no electricity costs and Google pays his mobile telephone line. The truck box provided a space of 12 square meters, more than enough space To sleep and save your personal belongings. The young man says that he only needs a battery lamp to illuminate the interior of the truck, and a portable battery of 15,000 mAh in case the mobile drums or headphones are spent, and that recharges at work. The interior of the truck was furnished in a simple way, with a bed, a dresser and a coat rack to hang clothes. Actually, that truck already offered him more space than he had on Google’s floor paying $ 2,000 per month. Live in Google. Brandon has created a blogin which he tells how his day to day living in a truck. The engineer tells that, as in his first year of practices, he spends all day In Google facilities. The young engineer says he makes all meals in the canteen for Google campus employees, where he also has showers in the campus gym. That allows you to minimize your daily expenses. Thanks to this strategy, Brandon can save approximately 90% of your net salary, allocating these funds to the payment of their student loans and investments. As the vast majority of US students, Brandon has to pay a student debt of $ 22,434, of which a good part has already covered. As a conservative estimate (and taking into account the bonuses), I hope to finish paying it in the next six months, saving thousands of dollars compared to the standard amortization plans of 10 and even 20 years, “Brandon declared the North American environment. Another way of living San Francisco. Brandon says that living parked just a few minutes from your office has many advantages, and allows many of San Francisco’s bad things to be skipped. One of them is the rush hour In the morning, turning his daily journey to work on a simple walk. Not having to drag the economic burden of a monthly rent has allowed him to go to dinner at different restaurants and enjoy the city atmosphere much more. It is not the first time that happens, and Google’s security knows. As Brando himself account on your personal blogIt is not the first time that a Google employee chooses to live in his parking lot. Brandon did not have to see them with Google security staff until the third month of “residence” in its parking lot when, in the middle of the night, it was approached by Google security personnel. However, the situation was resolved without problems after showing its corporate accreditation and confirming that there was an error in the vehicle registration. Clarified the misunderstanding, the safety of the Google campus apologized for waking him and never bother him again. At least, Google will not have to demand Brandon go to the office against your will. It is as at home. In Xataka | A 17 -year -old is the digital nomad par excellence: he lives in trains (and does not get expensive) In Xataka | Help the waiter collect the table seems like a kind gesture: psychologists see something much deeper *An earlier version of this article was published in August 2024

What cars can circulate and which ones rest on August 23

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Saturday, August 23: Day to rest. Especially if your vehicle is subject to the restrictions of the program Hoy does not circulate Sabatino. And, as you know, some cars must remain stored at home during this day. This program, promoted by the CDMX Ministry of Environment (Sedema), The main objective is reduce pollutant emissions improving the quality of the air we breathe. The mechanics is simple: some vehicles, mainly those that generate the greatest pollution, must limit their circulation, but do not always apply to the same cars every Saturday. In areas where this measure exists, some cars must rest alternately. And where is it applied? Specifically in the 16 mayors in Mexico City and in the following conurbation municipalities of the State of Mexico: Atizapán de Zaragoza Coacalco de Berriozábal Cuautitlán Cuautitlán Izcalli Chalco Chicoloapan Chimalhuacán Ecatepec de Morelos Huixquilucan Ixtapaluca La Paz Naucalpan de Juárez Nezahualcóyotl Nicolás Romero Tecámac Tlalnepantla de Baz Tultitlán Chalco Valley What cars and plaques affect the Sabatino today Who are obliged to stay at home? The daily dynamics of the program is easy to understand, as can be seen in the explanatory graph, but on Saturdays it changes and not all cars have the same restrictions every week. Some vehicles can circulate without restrictions certain Saturdays, while other weeks face limitations. The categories for this day can be divided into: Cars that can circulate every Saturday Cars that have to rest every Saturday Cars that rest on a Saturday yes and another These restrictions govern only among the 05:00 and 22:00 hours. During the night the limitation is eliminated, allowing circulation without a risk of fine. In addition to knowing the essentials, it is important to highlight that the application of the program is not constant for all cars. Therefore, before leaving, it is important to verify three aspects: the calendar of the month, the type of hologram that the vehicle and the last digit of its plate has. For example, vehicles with hologram 2 have active restriction every Saturday, while those who have holograms 0 and 00 can circulate without restrictions every week. Those who have hologram 1 have alternate restrictions week by week. He Saturday, August 23, 2025which corresponds to the fourth Saturday of the month (torque), those cars with plates finished in even number must rest. The following week, corresponding to the fifth Saturday (odd number), the restriction will affect cars with plates that end in odd number. However, there are some exceptions that must be taken into account because those cars can move with total freedom: Those that work for electricity, natural gas or are hybrid Those who have disabled plate All those dedicated to urban transport services (includes funerals) Those who offer school or passenger transport Those for public safety and/or civil protection Those who fail to comply with fines that range between 20 and 30 times the unit of measure and update (UMA), which is equivalent to an economic sanction of between 1,924.40 and 2,886.60 pesos. Photo | Erik McLean In Xataka | Contamination is not only making you live less and worse. You are also making you darker

The “richest treasure in America” ​​is not a pyramid, but the imposing collection of a Mixteca princess of 800 years ago

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Mexico is an inexhaustible source of pre -Hispanic treasures findings. We continue discovering vestiges of the past practically every week and it is something that He has shot with the Mayan train project and with the latest technology tools. Thanks to the latter, we have been able to find hidden pyramids, Underground areas And it is something that can give a push in the Study of old structures. However, there are pieces that, although we discover a few years ago, are still of great value. An example is the treasure of the tomb 7 of Monte Albán, which some continue to consider “the richest treasure in America.” Not only are hundred pieces, but they have a really enviable state of conservation. The Mixteca Treasure of Tomb 7 In January 1932, Dr. Alfonso Caso discovered at the archaeological site of Tomb 7 of Monte Albán one of the biggest pre -Hispanic treasures in history. At the time of its finding, a first restoration was carried out, but care was also carried out both in 1944 and a few years ago, with the objective not only of studying the pieces, but of restoring those that were precise and carrying out an adequate conservation process. In total, it is a set of more than 230 pieces made with sacred materials in the pre -Hispanic era, such as gold, silver, rock glass and precious stones such as turquoise, obsidian and green stone. The state of conservation of many of these objects is imposing. There are also less striking objects such as those made from bone or an alabaster pot. But … Where do these luxury objects come from? INAH researchers They offered context to the pieces, affirming that their origins date from the union of a lord of the dynasty of Zaachila and a Mixtec lady at some point between the 1,200 and 1,400 after Christ. Skull decorated with turquoise mosaics and shells Rock glass glass Locked bone with turquoise embedding Specifically, from the National Institute of Anthropology and History they comment that it was a union between “Mr. 5 Flor, of the Zaachila dynasty, with the princess of the Mixteco kingdom of Teoxacualco, Mrs. 4 Rabbit ‘Quetzal’”. The princess would have used the tomb 7 as a sanctuary to deposit the Tnaniwrappers in which the relics of the ancestors such as effigies of great value and other luxurious objects were kept. And, judging by the photos of the articles, the princess’s treasure was not small, precisely. Now, when these articles were found, they did not look as well as in the photographs that accompany these lines. According to INAH, it was necessary and meticulous restoration process so that we can admire the details of each of these pieces. Mask that represents the god Xipe Totec made in molten and soldier gold A pot with support manufactured in alabaster Bezote that represents the head of a jade stone foisan. The posterior plug is gold sheet This includes the recovery of the properties of its color, the polished finish of some objects and the reflective power of others. In whatever it may be, work was worth work, since the collection has an imposing presence and, beyond the photographs that INAH himself Share On its website (where we can see descriptions of each object), you can see live in room III of the Museum of Cultures of Oaxaca. And, in addition to admiring the goldsmithing of each piece, it is interesting to note that this treasure is important because it demonstrates not only how certain materials already worked on what they gave importance, but some of them were achieved thanks to the exchange and trade networks between different Mesoamerican sites. This is something extremely significant that, little by little, we are knowing and that tells us about the cultural wealth of some sites. A recent example is the study of Channels from Mexico City That, precisely, it was an imposing cultural center thanks to those commercial activities. Images | INAH In Xataka | The Maya played football. And now we know that under the courts they buried a hallucinogenic surprise *An earlier version of this article was published in August 2024

Depseek has just launched something that will bitter the day and the US chips companies: it is called Depseek-V3.1

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There was a day when Depseek surprised half the world by demonstrating that you could go far with less. Today returns with V3.1 And a message that does not go unnoticed: the model has prepared for the next Chinese chip batch. We are not talking about an automatic market overturn, but about a concrete bet that points in an awkward direction for Nvidia and company. If that technical tune with the Chinese hardware It translates into performance, conversation about who feeds AI in China is going to sound very different. According to the company’s own noteV3.1 opens a hybrid inference in the purest style GPT-5: the same system with two routes, Think (deep reasoning) and Non-Think (Quick response), Sygons from your website and app. The formulation is clear: “Hybrid Inference: Think & Non-Think, a model, two models.” The company also underlines that the version Think “Reach answers in less time” than your predecessor. That is, not only do pesos change, the inference modes that are already in service also change. The phrase that frames everything: an FP8 “thought for national chips” In a comment set in his latest publication in Wechat, Depseek writes: “EU8M0 FP8 is for the next generation of national chips.” That is the point that tense the rope: it suggests that the company has adjusted the data format, apparently a FP8 which label as EU8M0, to the next wave of Chinese processors. Bloomberg andReuters collect that message And they synthesize it: v3.1 is “personalized to function with next -generation AI chips Chinese. ”In other words, optimization oriented to the local ecosystem. The original comment in Chino (left) and its Spanish translation with Google Translate (right) FP8 is an 8 -bit format that weighs half that FP16/BF16. With native support, it allows more yield per cycle and less memory, provided that the climb is well calibrated. In the official Model Card of Hugging Face It is read that Depseek-V3.1 “has trained using the EU8M0 FP8 scale” format, which indicates that it is not only a packaging of weights, but that training and execution have been expressly adapted to that precision. The delicate part, and it is convenient to be prudent, is that everything points to a chips remittance that will be displayed in the future, since they can take advantage of this scheme natively. So is this bad news for Nvidia? The data of the fiscal year that expired on January 26 indicates that China represented approximately 13% of the company’s revenues led by Jensen Huang. If part of the computation of AI in China Classic duo muta NVIDIA GPU + CUDA ECOSYSTEM To domestic solutions that work with the UE8M0 FP8 format and give good results (presumably chips ascend of Huawei), the demand for Western solutions could be eroded over time. China meant about 13% of Nvidia’s income in the last fiscal year All this happens on the US export controls board: restrictions that sought to stop China’s access to leading chips and that have also accelerated their commitment to self -sufficiency. This year the Trump Administration rehabilitated with conditions the export of H20a chip cut for China. Since then, the state of the H20 has been oscillating: among permits, Chinese regulatory pressures and Nvidia plans to present Blackwell -based alternatives. The background message is that the framework is political and changing, and any route that allows China to depend less on these windows becomes strategic value. You have to remember another fact that helps to calibrate expectations. According to Financial TimesDeepseek tried to train his future R2 model with Huawei chips ascend to official instances and found persistent technical problems. He ended up returning to Nvidia for training, while he was still working on the Compatibility for inference. That episode does not invalidate the current strategy, but puts the bar: to completely migrate its processes is not simple, it requires, among other things, months of engineering. V3.1, therefore, it must be read as iteration. Now the company states that it has prepared its model for the next Chinese chips. Matherena models scores And here we have another interesting fact. Matharenaa platform linked to Zurich Federal Polytechnic School which evaluates models in real and recent mathematical competitions, places GPT-5 as a leader, with 90% in final response tests, already deepseek-v3.1 (Think) something behind although among the best models of the moment. This helps to locate the context: V3.1 Compete above. Images | Xataka with Gemini 2.5 | Matharen and Deepseek screen catches In Xataka | Tiktok stole the searches, Depseek beat them in Ia: Baidu discovers that being “the Chinese google” is no longer enough

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