light

Marcos Llorente has an eccentric and disturbing relationship with light. And science has things to say about it.

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Marcos Llorente is news. Again. And not because of football or anything remotely related to sports. It is because a video of almost four minutes recorded (and published) by the RFEF during the Red concentration in which the man from Madrid reveals some of his “healthy” habits, practices that include the use of red lights inside the house or glasses with yellow lenses to filter blue light. Opinions that highlight its eccentric appearance and raise the eyebrows of the experts. What has happened? That Marcos Llorente has become news beyond the sports pages. And he has done it on account of a video published by the RFEF in which he does not talk about techniques, his play on the field or how he sees the National Team facing the next World Cup. No. What he’s talking about is his personal health routines. More specifically those related to light and sight. What exactly did he say? First of all, at home you only use certain lights. “During the day I don’t turn on the light because either I’m always in the garden or, if I go into the kitchen or living room for anything, light comes in through the windows,” explains in the video under intense reddish lighting. “When the sun goes down, this is the light I have throughout the house. What this lamp does is bring that red and infrared into the room and makes it more similar to the light outside.” Click on the image to go to the tweet. Is there more? Yes. The man from Madrid elaborates on an accessory that has been seen on him on other occasions and it has also caused people to talk: the yellow lens glasses. “They are for when you are, during the day, indoors. Outside you should never wear glasses of any kind. They should always give you the sun’s rays in your eyes and skin, without anything interfering. And red glasses, with the red lens, what they do is filter all that blue light that lamps and televisions or telephones have.” And why all that? For health. Or at least that is what the footballer maintains, who defends that what he does transcends his role as a footballer. “I feel very good. All these things I do are for health, not for football. What happens is that in the end one thing is linked to the other. I think that when I leave football I will continue with this and surely I can do it more perfect,” concludes the man from Madridwho during the video shares other of his habits, such as going outside before dawn or starting the day with coffee and “two or three tablespoons” of butter. What do the experts say? Whatever Marcos Llorente says, the effectiveness of the filters is debatable to say the least. In an article Published a few years ago, the Spanish Society of Ophthalmology already insisted that “blue light from screens does not affect the eyes or cause blindness.” The report was actually launched after a study “of dubious scientific origin” created alarm with “unfounded conclusions” about the supposed impact that this light can have on eyesight. “Although blue light is often associated with computers and phones, the largest source of blue light is sunlight. Exposure to blue light from screens is much less than the amount of blue light we are exposed to from the sun. Additionally, it is no more harmful than sunlight,” comment Dr. Rahul Kurana, spokesperson for the American Academy of Ophthalmology. Do the lenses work? Ophthalmologist Sara E. Hernández is blunt in statements collected by The Vanguard: “There is little or no effect of lenses or glasses with a yellow filter on visual performance, measured in terms of best corrected visual acuity, compared to lenses without a blue light filter.” There are studies, such as It is published in 2013 in Journal of Human Kineticswho after carrying out tests with colored lenses found that there are no “significant differences” in issues such as visual acuity or depth perception. Where does this come from? Concerns about blue light and the benefits of filters are not new, as remember the Spanish Society of Ophthalmology itself, and have been expanding as the use of screens and LED lights spread. They have spoken on the subject users, academics and collegiateincluding the American Academy of Ophthalmology, which in 2017 published an article written by Celia Vilmont and reviewed by Dr. Khurana that begins with a blunt statement: “There is no scientific evidence that blue light from digital devices can cause damage to the eyes.” Now Marcos Llorente becomes the new greatest exponent of these theories, despite the paucity of evidence scientific. Is it something new? More or less. The RFEF video is new, but it is not the first time that Llorente has made headlines for his opinions on topics that have nothing to do with football. In his day it was for the use of glasses and now it is also for his statements about the chemtrails. His words achieve notoriety for several reasons. The first, his status as a footballer. The second, the speaker that you have beyond your personal networks, such as the official account of the National Team or media in which share his extra-sports comments. Images | RFEF In Xataka | Some Nordic cities are putting red lights on their streetlights. It looks like a horror movie, but it makes sense

Data centers shooting the light of light in the houses

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Spain is betting very strong for the development and creation of new data centers. The AI ​​boom has infected our country, and although that attracts investment and economic capital, it can also lead to serious problems for consumers. Especially a very clear one: that we pay more for the light. Spain, care with data centers. In recent months we have seen how Data centers construction projects grow In our country. It is estimated that in the Community of Madrid there will be a power of 1.7 GW in 2030, which is paradoxical, because it is the region with greater energy deficit in Spain and the one that is staying with a good part of these projects. Aragon, in another league. Aragon has so many projects of data centers that He showed his disappointment When he knew that the reinforcement of the electricity network for those facilities throughout Spain will be 3.8 GW. Those responsible for the Aragonese government described the figure of “scarce”, especially considering that this region has projects that projects that projects that projects that They would exhaust that capacity alone. The US teaches us (worrying) future. A Bloomberg investigation It reveals how in the last five years the creation of new data centers is making the light invoice rise remarkably. Those centers, previously dedicated to expanding the cloud infrastructure and now totally focused on the AI ​​boom, are behind that increase in light invoice. Energy consumption is triggered in these facilities, and ends up affecting electricity prices in surrounding regions. Prices that almost quadruplic. In 2020 Baltimore residents paid average $ 17 per MW/h. In 2025 that price is $ 38 per MW/h. In Buffalo the thing is even worse, and prices have tripled in five years: they have gone from $ 11 to 33 per MW/h. In the areas of the United States close to large concentrations of data centers, the wholesale price of electricity has risen up to 267% In the last five years. LMP are nodes of the electricity grid that determine the wholesale price of electricity. Almost three out of four have seen price increases when they are close to data centers. Those who are in farther areas have come to see their reduced prices. Source: Bloomberg. Unequal climb. The study reveals how wholesale electricity prices in the US have increased significantly in recent years, although it is true that these increases have been applied unequally at the geographical level: certain areas have seen modest increases, but others have seen how the light of the light was fired and grew up to that aforementioned 267%, close to quadruple. The condemnation of data centers. 70% of the points at which price increases were recorded are less than 80 kilometers of data centers with significant activity. It is a fact that makes it clear that the impact of these data centers on the light of the residents is clear. And this goes to more. Current estimates, Indicates Bnefprevent the energy demand for data centers in the US will double for 2035 and will be the largest increase in energy demand since the 60s. Thus, in ten years that demand will represent 9% of the total. At the global level, the data centers are expected to consume more than 4% of the electricity consumed in 2035. If those facilities were a country, they would be the room in energy consumption, only behind China, USA and India. Perfect storm. The demand is also linked to the rise of cryptodivisas, the impulse of manufacturing in the US and the “electrification of the economy”, which includes areas such as electric vehicles or domestic heating systems. The withdrawal of traditional mining facilities in areas such as Baltimore has only aggravated the economic problem: there is less energy supply and more demand, which makes prices again increase. The world already knows what comes over and is reacting. What is happening in the US is already causing reactions in other countries. Holland: Water and energy needs made the Amsterdam City Council in 2019 imposed A moratorium for the construction of new data centers. Singapore: also established a pause for the creation of this type of facilities between 2019 and 2022, although the government made clear which would be more selective in future projects. Ireland: In 2024 the country reached a worrying milestone. Data centers They already consumed more than households. 5% of the country’s total consumption went through in 2015 to 18% in 2022 and 21% in 2023. Household consumption represented that year 18%. The solution: that the Big Tech pay that invoice. Public service companies in the US such as Dominion Power are clear that “data centers should pay the full cost of their energy consumption.” Large technological ones know very well that these facilities raise an extraordinary energy demand, and They are investigating solutions like him Use of SMR reactors for their AI data centers. The idea is interesting, But complex. Supply and demand. Spain faces a future in which energy supply and demand could be unbalanced as it is already happening in the United States. If data centers begin to impose more and more load on the network, it is reasonable to think that the cost of electricity increases and causes the least desirable effect for users: the rise in the light invoice. Renewables could help mitigate the problem, but only If the network is capable of absorbing Both the new generation and the new mass demand of the data centers. Image | Microsoft

The light bill has shot up to 267% in the US

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“I could not keep paying such an invoice,” says a woman from Baltimore. In the areas of the United States close to large concentrations of data centers, the wholesale price of electricity has risen up to 267% in the last five years. To anyone’s surprise, consumers are assuming these costs in the light bill. Short. An exhaustive Bloomberg analysis He has crossed the prices of 25,000 points of the American electricity grid with the location of the country’s data centers. The result is devastating: more than 70% of the nodes that registered large price increases are less than 80 kilometers from a Data centers cluster. AI and the price of light. According to the International Energy Agency, the electricity consumed by data centers will double up to 945 twh from here to 2030overcoming the demand for entire countries like France or Japan. The AI ​​will be the main engine of this increase. While large technological ones defend that their data centers bring investment, high quality jobs and tax revenues that benefit the adjacent communities, the residents of these large energy monsters have been suffering less debated consequences. A matter of supply and demand. The energy demand of the AI ​​data centers is so high that it is carrying the auctions of electrical capacity at record prices. The phenomenon is especially visible In the accounts of the largest network operator in the United States, PJM Interconnection, which covers 13 states. In its last annual auction, the load of the data centers fired the sale of PJM capacity In 7.3 billion dollars, 82% more. The reason is simple: energy demand grows much faster than the ability to generate new electricity. But the consequences go beyond simply encouraging the installation of new energy sources. The wholesale price that electricity pays to guarantee the future supply affects both the invoices of the companies and the households. David against Goliath. To understand the conflict at street level, it is enough to travel to Virginia, home of the largest concentration of world data centers. It is estimated that Between the 3rd and 40% of world Internet traffic Go through your servers. Here, the Dominion Energy electric company expects demand to grow 85% by 2039. If they were not the data centers, the growth would be only 10%. But here they are, so new infrastructure will be needed, such as high voltage towers and electrical substations, which will have to be paid. And who pays? Today, these expenses are distributed among all the clients of the electric company, from a small apartment to the gigantic data center. It does not happen only in the US. Although the epicenter of the crisis is in the United States, due to its leadership position with AI, the problem is global. Technology companies seek to expand their infrastructure throughout the world, and voltage in electrical networks is replicated. In the United Kingdom, the greatest demand from data centers could Electricity prices more expensive 9% by 2040. In Malaysia, the government has had to Increase electrical rates of the data centers as the new facilities test the country’s supply capacity. The social cost of technological progress. Data centers are not born by spontaneous generation. Someone has to build and maintain them, which generates employment. In Virginia, they contribute 9,100 million dollars to state GDP. The career of giants such as Microsoft, Amazon or Google is reviving investment in renewable energy and more efficient chips. But as long as the electricity grid does not supply and the light invoices continue to rise, the debate on the cost of AI for citizens will continue to fueling. Image | Rawpixel In Xataka | Google has finally revealed how much electricity and water consumes its AI. Estimates could not be more wrong

Science has reviewed everything we know about sleeping well. The most important thing is the most obvious: light

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In a saturated world of ‘life and gadgets that promise a perfect break, since face mask until Mantas with weightscience reminds us that the key to have a good sleep quality It is not in the product that appears in Tiktok, but in have a good sleep hygiene. And this happens to synchronize with our internal biological clock, what we know as the circadian rhythms. A concept on which it continues to be investigated and that allows us to know how our body is scheduled to sleep. The issue in this case is that modern life, with its artificial light and its chaotic schedules, It is the main enemy of these rhythms. And therefore of ourselves. A business. The market that exists around products that promise to help us have a better rest, the truth is that it generates billions of dollars a year. A figure that is logical, since nobody wants to spend the night and be the next day asking for coffee for the corners. And to avoid this we many times turn to whatever we see that they tell us that it works. However, many of these remedies are not only ineffective, but can be counterproductive. Andrew Mchill, a scientist specialized in circadian rhythms of the Oregon Health & Science University, warns That failed attempts can discourage people to seek professional help, worsening the situation. The solution. If we stick to science, the solution is completely free. The key is in Understand and respect our internal biological watches. A system of ‘watches’ that is present in each cell of the organism and that needs to be synchronized with the ‘central clock’ of the organism that is in the hypothalamus and specifically in the supraquiasmatic nucleus. To do this, this nucleus receives light signals that come through the eyes by the optical nerve that allows you to synchronize vital body functions such as the sleep-vigilia cycle and the production of hormones such as melatonin, which, which it is increasingly important Beyond allowing us to reconcile the dream such as repairing the data in our body. With a small nuance of basic physiology, Melatonin production It is suppressed or inhibited due to light collection. At the time the environment darkens, the pineal gland begins to release melatonin. And his mismatch has consequences that go beyond morning fatigue by affecting cognition, mood and reaction time. The contrasts. One of the keys is in the light as we have said, especially in the blue wavelength. This makes the daytime light rich in these blue tones, Synchronize our circadian rhythms throughout the day. But when the night comes and we are on the couch watching the last Instagram or Tiktok reos this blue light of the screens makes our body end up dislocating. Literally, with this constant exposure to the blue light we are indicating the body that is still daytime and that has to be underway and not decay. Something that ultimately triggers the hated insomnia. A study of Global Health Institute of Barcelona (ISGlobal) He warns that overexposure to the “blue light” of electronic devices alters our sleep-vigilia cycle when interfering with melatonin production. The solution, according to experts, is to seek contrast: expose ourselves to natural light during the day and reduce exposure to artificial light at night. A simple outdoor walk or work near a window can make a big difference. At night, it is advisable to lower the intensity of the lights, turn off the screens or use applications that adjust the color temperature to warmer tones. Or even bet on red lights that does not interfere with melatonin production. Meals. Our digestive system also has its own schedule, causing hormones that cause or inhibit hunger, digestive or even Insulin itself also works by rhythms. This makes eating on the undo, especially late at night, alters these watches and can cause digestive problems, an increase in body temperature and an increase in glucose levels, which makes sleep difficult. And it makes enough sense. When the end of the day is approaching and the sun begins to wear, the body begins to prepare to sleep, reducing insulin, which is a fundamental hormone to control blood glucose levels. In the event that we give us a binge during the night, we are causing these insulin levels to have to rise compulsively when the body is going down. Something that completely dislocates to the body. The recommendation is to follow what you have surely heard: “Breakfast like a king, eats like a prince and dinner like a beggar.” The last meal of the day should be at least three hours before bedtime. The consistency. Sleep The right time is as important as the amount of hours we sleep. Our body has an optimal sleep window, which varies according to our chronotype (if we are “evening” or “morning”). However, work and study schedules often force us to ignore our biological clock. The Spanish Sleep Society (SES) He insists on the importance of maintaining regular sleep schedules, even on weekends, to keep our circadian rhythm synchronized. The generalized use of alarmrs is proof that most of us live in conflict with our constant biology. Seek help. Something very important in these cases is to seek help from professionals in the event that the biological clock is completely uncontrolled. In many situations, exogenous melatonin can be administered at high doses accompanied by a plan to improve sleep hygiene. But beyond this, Mayic Mayic It offers different tips that can be obvious how to create an adequate rest environment, exercise regularly, control food and especially establish the most appropriate relaxation routine. Although clearly getting away from the screens and maintaining an adequate schedule is the most recommended so that we can finally sleep peacefully. Images | Shane In Xataka | Something is stealing our dream and they are not just the screens. A neurologist helps us understand what is really happening

The CAF equilibrium set and its light harmony in Jerusalem

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The “great Spanish rail giant.” That is the denomination that is usually used to talk about construction and railway assistant. CAF, as this internationally recognized trains and rail supplier is popularly known. A Spanish company, from Guipozcoa, who is reaping huge contracts outside our borders. And that is also in the international view. CAF. It is one of those companies that sounds to us its logo and its acronym. You know you’ve seen it but you may not be very clear where or in which sector you can place it. It is not so weird, do not worry, although CAF is among the 200 largest Spanish companies. To get an idea of ​​its size, In 2024 he billed 4,200 million euros and generated more than 100 million euros of benefit. In Euskadi it has some 3,000 employees But it has more than 16,000 people hired throughout the world, since the bulk of its business is in Europe (58%) but also has projects in America and Asia-Pacific. Israel. It is precisely one of his projects abroad that is generating great headaches to the company. The company has been working with the Israeli Shapir to build and expand the red and green lines of the Light Jerusalem Rail. The project is not any nonsense. It is valued at 1.8 billion euros of which CAF should pocket 500 million if you deliver its part in a timely manner. In addition, it would manage 50% of exploitation of extension over a period between 15 and 25 years. Settlements. For CAF, being immersed in a project delivered by Israel already should be a problem, taking into account the genocide that is being carried out in the Gaza Strip. But, as if that were not enough, we talk about building 50 stations along 27 kilometers of new roads … in illegal settlements. On this map It is observed how Israel is expanding both lines to unite the illegal settlements of Jerusalem is already built with those of west Jerusalem. The Palestine Liberation Organization (OP) assures That the final intention of this type of infrastructure is to create permanent links between these spaces to hinder the reversal of its entity and its return to Palestine. International pressure. This position is not only defended by the OLP. The Special Rapporteur before the United Nations Human Rights Council published the report From the economy of occupation to the economy of genocide. In it he pointed to CAF as one of the companies that does business with illegal Israeli occupations. Amnesty International also asked To governments that take into account which companies under their umbrella are taking advantage of this situation. And pointed to CAF directly: “The company has only ignored the different resolutions of the United Nations Security Council, the European Union and the International Court of Justice that Israeli settlements consider illegal in occupied Palestinian territory, as well as the fact that the United Nations Human Rights Council itself declared illegal the project of this tram in 2016 and 2017 stating that ‘clearly violates international law and relevant resolutions of UN “ What does Caf say. The last point they point out from Amnesty International has a lot of relevance. The company indicated in its sustainability reports that “the Light Rail project is in territories that are subject to political controversy (…) No violation of human rights derived from the participation of the CAF group has been detected in any project.” In addition, CAF has also published Recently a document in which your role in the project, ensuring the following: “Beyond compliance with the applicable regulatory framework, CAF is firmly committed to business ethics and respect for human rights in all its operations, including the value chain, based on the highest standards of responsibility and transparency. For this, CAF has a series of norms, procedures and systems, adopted to the highest level, which make up a complete compliance system, application to the entire group, as well as the third The purpose of preventing and acting against any behavior that could be contrary to ethics, the law or the internal normative system of CAF. And emphasize that the project was awarded in 2019. 2019. The Spanish company defends itself by ensuring that this project was awarded in 2019 by omitting any reference to a previous date. They point out that the approval was given before Hamas to Israel’s attack and the subsequent invasion of the Gaza Strip. But what is overlooked, as they explain in Amnesty International, is that the project had already declared illegal by the United Nations Human Rights Council in 2016 and 2017. In fact, in fact, in fact, French company Alstom ended up coming out of the same Shortly before the entry of CAF after the pressures received although, yes, at no time were political reasons alleged since the company maintained a project in the Israeli city of Tel Aviv. Too much money? Indicated by entities such as the United Nations Human Rights Council or Amnesty International, CAF is in the spotlight both inside and Out of our borders. In fact, his participation in the Israeli project was one of the alleged reasons to try to prevent the Spanish company from being done with The so -called “Century Contract”which could report up to 3,400 million euros for supplying SNCB trains (the Belgian Renfe). Within our borders, the debate has also reached institutions. From the PNV they ensure that CAF is being pointed out by “responsibilities that do not correspond to it” and that terminating the contract (as they ask from the Elkarrekin we can) “could mean the closure of the company or take it out”, in words collected by The mail. Other companies. As we said, the Israeli project of this lightwail to connect illegal settlements has already caused the exit of Alstom before 2019 but, derived from the genocide that Israel is carrying out in the Gaza Strip, some other Spanish companies have also stopped working for that state. Without leaving Euskadi, The … Read more

We always believed that the light guns fired invisible rays, but the reality is the opposite: it was the TV that shot

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Recognize it: if you are old enough to have played withA Light GunFor a while you thought that this gadget worked by firing rays of invisible light that television detected. Was it the position of the gun? The distance? Did the glass of the screen really knew when the goal was in front? Actually the solution was much simpler and ingenious. The light ray is in reverse: the gun is the receiver. Guns of what. First, let’s remember the history of the device: the light guns in video games began to appear in the thirties in mechanical arcades and evolved towards electronic video games in the 1970s and 1980s. Nintendo already experimented with early versions with its video shooting series for famicom in 1984, whose gun was not futuristic, but it seemed like a western revolver With the theme of the game. Nintendo arrives. The device of this most popular type was Nintendo Zapper for Nespossibly because he was accompanied by one of the most iconic games of the genre, ‘Duck hunt’. The Zapper was already tumbos since 1984 with the version for Famicom, but in 1985 it became the Zapper of NES and left in the United States with the science fiction design we know, automatically becoming a pop icon. In 1988 it was redesigned with bright colors to resemble even less to a real weapon and comply with the legislation. There were up to 17 official games for Zapper. In Xataka This genius has transformed the ZNA Zapper is an incredible laser ray gun But … how did it work? Actually the Zapper and the rest of the light guns of the time were not emitters, but light receptors. The process that followed to work was: when the player clenched a trigger, the screen turned black during a Frame. In the following, the objects to which they have to become white blocks, and the rest remains black. The human eye can barely distinguish this pair of Frames Inside the gun was a light sensor that detected if the area to which it was aimed had changed to Blanco. The game determined what objective had been “shot” according to the time in which this white block appeared, since each white objective was sequentially shown in a different frame. And of course, if the sensor detected the white light inside the expected interval, the shot was counted as a success. Only for old people. The ingenious method only worked on CRT screens, as technology depended completely on the speed and characteristics (on the shortcomings, let’s go) on the soda speed of the cathodic tube. On LCD screens, plasmas and other modernities, the delay changes, and so does the soda technology. What makes ancient games “rare” on modern televisions is also what prevents the gun sensor from correctly capturing the light and location of whites. {“Videid”: “X9HMC3A”, “Autoplay”: False, “Title”: “Nes Mini, Review and Spanish analysis”, “Tag”: “”, “Duration”: “250”} More guns. Then, especially in the field of recreational, more sophisticated guns arrived, such as ‘Operation Wolf’, which was actually a command that determined where it pointed according to the position of the gun, fixed in the machine of the machine (a method as ingenious as that of the Zapper, playing with what the player who is happening is believed). And then they arrived, in fact they do in machines that remain in operation, increasingly sophisticated systems, and that use infrared sensors or cameras to determine where the player points out. But the adorable imagination and naivety of the Zapper give him a unique personality. In Xataka | The Nintendo PlayStation exists: this is the history of the hybrid console that never reached the market (Function () {Window._js_modules = Window._js_modules || {}; var headelement = document.getelegsbytagname (‘head’) (0); if (_js_modules.instagram) {var instagramscript = Document.Createlement (‘script’); }}) (); – The news We always believed that the light guns fired invisible rays, but the reality is the opposite: it was the TV that shot It was originally posted in Xataka by John Tones .

They have burned 3.3 billion euros in developments that will never see the light

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There are times that it is better to stop, recapitulate and, in the worst case, throw all the work in the trash. Because there are occasions in which it is better to throw the work in the trash than to move forward and continue trying into a project condemned to failure. That is what should be completed within Stellantis last year. And at the same conclusion this year has been reached. The result: 3,300 million euros lost in developments that will never see the light. In the trash. A few weeks ago, Stellantis published the results of his first half of 2025. The most striking figure was, without any doubt, The loss of 2.3 billion euros. A figure that is still much more striking if we take into account that last year, in the same period, a benefit of 5,647 million was thrown. The figure is explained by the tariffs that the company has had to face in the United States and for a descent in sales. Billing has fallen more than 12%, explained by a 6% sales fall in Europe (with some cars to review, such as Citroën C3) but, above all, 25% in the United States where they had a huge accumulated car stock In the dealers. But, above all, it is explained by money that has gone, directly, in the trash. Hydrogen. With the Presentation of the results The Cancellation of plans of Stellantis related to hydrogen. In its results account, losses of 733 million euros were attributed to the performance of this item in the first half of 2025. That figure was built with investments in Symbioa joint company with Michelin and Forvia for the production of hydrogen -moved vans. The production plant took more than 300 million euros that have not finished anywhere. However, it is estimated that stellantis losses directly related to hydrogen investments have been much higher and They reach about 1.8 billion euros. Keep in mind that Stellantis mounted, for example, a program for convert electric vans in hydrogen versions. Maserati. But hydrogen, which seemed like a future investment to take positions, seems almost the least of the problems when it is observed what is past with the Italian luxury vehicles. The Maserati MC20 is barely being sold and The company has canceled the plans To develop a completely electric version. The result is that in the first half of 2025 they have lost 552 million euros. But the problem is another. The problem is in 2024 when 1.5 billion euros went to drain. China is not the way. The big black point is that in 2024 Stellantis had the production of Electrical versions of the Maserati Quattroporte and Levant. The idea was to sell those cars, mainly, in China where the electric car is triumphing but the process was paralyzed at the last minute. The result is seen in your results account: 1.5 billion euros lost in the development of these cars. Before the Bad results of foreign companies In China, someone decided that it was better to brake and assume losses before the result was even worse than reflected. The intention was that these electrical versions They will occur in Mirafiori (Turin) So investments in personnel and machinery were already made. At least, we had to try to patch the matter. The last piece of dominoes. That obligation to do “something” with the Mirafiori plant was taken advantage of by Stellantis to try to boost the sales of Fiat 500. The electrical version has been added to modify the vehicle’s platform since the car was born as a purely electric vehicle. This last money is not explicitly reflected in Stellantis accounts but it is unquestionable that it has had to assume another stone on the road although it has been awarded to the rest of the investment items since, unlike cars such as Peugeot 3008 (born to house all kinds of technologies)the Fiat 500E was born as a car without combustion versions on the horizon. This last expense, in fact, seems to have been enough for Stellantis does not make the same mistake with the Peugeot 208 And think, from the beginning, to set up the car on a multienergy platform and, in this way, not have to turn back in the project. Even if he had not been born prior loss of 1,500 million euros with Maserati. Photo | Maserati and Stellantis In Xataka | After years of crisis, Stellantis has definitely retired from China: his joint business has entered bankruptcy

five big, light and cheap models to study

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The new Aliexpress campaign is leaving discounts on all types of products: from video games and consoles Even tablets to face next school year. If you are looking for a good tablet to study, During the campaign of return to school there is a lot to choose fromso in this article we have reviewed some of the models with the best price. Xiaomi Redmi Pad 2 by 118.99 euros With the Esbs25 coupon, a tablet that offers 2.5K resolution and is compatible with Dolby Atmos. Little pad by 167.60 euros With the SBS35 coupon, a model with Snapdragon 7s Gen 2 processor and with microSD card slot. Xiaomi Redmi Pad Pro by 176.32 euros With the Esbs35 coupon, a tablet compatible with Dolby Vision that supports a fast charge of 33W. OnePlus Pad 2 by 299.75 euros With the Esbs55 coupon, a tablet with the Snapdragon 8 Gen 3 processor that supports a 67W fast charge. OnePlus Pad 3 by 453.71 eurosa 13.2 -inch screen tablet, Snapdragon 8 elite processor and fast charging of 80W. It is worth mentioning that the store has a large assortment of offers to which a discount coupon. If, on the other hand, you are looking for another device beyond the tablets, these are the coupons you can take advantage of: Discount Minimum purchase coupon 2 euros 10 euros Esbs02 BSES02 3 euros 15 euros Esbs03 BSES03 5 euros 30 euros Esbs05 BSES05 10 euros 69 euros Esbs10 BSES10 15 euros 99 euros Esbs15 BSES15 25 euros 139 euros Esbs25 BSES25 35 euros 199 euros Esbs35 BSES35 45 euros 269 euros Esbs45 BSES45 55 euros 349 euros Esbs55 BSES55 60 euros 429 euros Esbs60 BSES60 100 euros 599 euros Esbs100 – Xiaomi Redmi Pad 2 If you do not want to spend a lot of money and you are looking for a tablet that is economical, but that allows you to study and take it to class, the Xiaomi Redmi Pad 2 has dropped in price in Aliexpress to the 118.99 euros When using the coupon Esbs25 Before processing the purchase. The Xiaomi Redmi Pad 2 It is a tablet that has a standard 11 -inch size and weighs 510 grams. Your IPS panel offers a 2,5k resolution And a 90 Hz refreshment rate, its battery supports fast charging of 18W and internal level comes with the MediaTak Helio G-100 Ultra processor. It also stands out for its speakers, which includes four and are compatible with Dolby Atmos. Xiaomi Redmi Pad 2 – SBS25 coupon * Some price may have changed from the last review Little pad A step above we find another model that is ideal to study and take to class: it is about the Little pada tablet that has a larger size and some specific specifications than that of Xiaomi. Its price, in this case, stays in 167.60 euros When using the coupon Esbs35. The Little pad It is a tablet that mounts a good 12.1 -inch screen with 2,560 x 1.600py Snapdragon 7s Gen 2 together with 8 GB of RAM and 256 GB of internal storage (card expandable MicroSD). In addition, its battery supports a quick 33W charge and has a weight of 571 grams. * Some price may have changed from the last review Xiaomi Redmi Pad Pro Almost for the same price that little PAD has, we find an alternative that is also quite interesting: the Xiaomi Redmi Pad Pro. It is a very complete tablet that can now be bought in Aliexpress by 176.32 euros using the coupon Esbs35. The Xiaomi Redmi Pad Pro It is a tablet that comes with a 12.1 -inch IPS screen and weighs 571 grams. Its panel offers a soda rate of up to 120 Hz and is compatible with Dolby Visionits processor is the Snapdragon 7s Gen 2 and its battery supports fast charge of 33W. Xiaomi Redmi Pad Pro – Coupon Esbs35 * Some price may have changed from the last review OnePlus Pad 2 If you can allow yourself to spend a little more, in Aliexpress we find one of the options that have the best value for this list: the OnePlus Pad 2 It is an excellent tablet that right now has dropped up to the 299.75 euros using the coupon Esbs55. The OnePlus Pad 2 It is a tablet that stands out in several aspects: its IPS screen is 12.1 inches, it is compatible with Dolby Vision and offers up to 144 Hz. Its processor is the Snapdragon 8 Gen 3comes with 12 GB of RAM and 256 GB of internal storage. Its battery supports Fast charging of 67Wweighs 584 grams and comes with a six speakers system. OnePlus Pad 2 – SBS55 coupon * Some price may have changed from the last review OnePlus Pad 3 On the other hand, if what you are looking for is a more recent and much more complete tablet, the OnePlus Pad 3 It is also an excellent purchase option that can be found on offer in Aliexpress. Does not admit any coupon, so it only has a direct discount that leaves it for 453.71 euros. The OnePlus Pad 3 It is a tablet that can serve as an alternative to a laptop. Mount one 13.2 -inch screen which offers a resolution of 3,392 x 2,400 pixels and refresh rate of up to 144 Hz, its processor is the Snapdragon 8 Elite And its battery supports fast charging of 80w. In addition, it includes a system of eight speakers, weighs 675 grams and has 12 GB of RAM and 256 GB of internal storage. * 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 | Javier CriminalvaXiaomi, little, OnePlus In Xataka | Best tablets (2025). Which to buy and 8 recommended models for all pockets and needs In Xataka | BEST TABLETS IN QUALITY … Read more

What is a light year and why it is impossible to travel in less than a year, according to Einstein’s relativity

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Among all the rules that govern the universe, one of the most iconic and at the same time difficult to understand is the universal speed limit. The speed of light is not only an unwavering constant: it is the link between matter and energy, as Albert Einstein described with the most famous formula of science: E = Mc². Can Asom to the foundations of our own existencebut not travel to more than “C”. Only light can travel a light year in a year. Let’s define constants: the speed of light The speed of light is the key piece in Einstein’s equation. That “C” is not only a number, but the conversion factor that unites the concepts of mass (m) and energy (e). It is a constant that represents the speed of light in a vacuum, but also the speed limit for the spread of any type of information, signal or material particle in the universe. If you think very strong, it is the limit of causality itself: an effect cannot occur before its cause, spreading at the maximum “C” speed, can reach it. This speed is the same for any observer in the universe, regardless of their own state of movement. If you travel in a hypothetical 99% spacecraft of the speed of light and light a flashlight, the light of that flashlight will move away from you exactly at the speed of light, not to a fraction of it. It is one of the universal constants of physics. And the observations of the cosmic microwave background, The remaining light of the Big BangThey confirm that it has not changed measurable in more than 13.8 billion years. What speed is light, then? Although it sounds strange, the speed of light in a vacuum has an exact and defined value: 299,792,458 meters per second. To put it in more earthly figures, it is equivalent to almost one billion kilometers per hour. A photon of light would go around the earth’s Ecuador about 7.5 times in a single second. It is, according to Albert Einstein’s special relativity theory, the definitive and unwavering speed limit of the universe. An epic about measuring the above Calculating the speed of light has been one of the great sagas of science. After the philosophical debates of ancient Greece and an ingenious but failed attempt from Galileo using lamps between distant hills, the first estimate came in 1676. Observing the eclipses of ío, one of Jupiter’s moons, the Danish astronomer Ole Rømer noticed that they had a different duration According to the time of the year. He deduced that it was due to the additional time that the light took to cross the orbit of the earth when our planet moved away from Jupiter. Rømer estimated the speed of light in 220,000 km/s, a surprisingly close figure for the time. Half a century later, in 1728, the English physicist James Bradley He refined this measure using a different method: the aberration of stellar light. He noted that the apparent position of the stars changed slightly due to the speed of the earth in their orbit. Something similar to how rain seems to fall at angle when we run. From this effect, it calculated a speed of 301,000 km/s, a value with an error of just 1%. Michelson’s experiment. Image | Popular Science (1930) It was not until 1887 that scientists discovered the most surprising aspect of the speed of light. Albert Michelson and Edward Morley tried to detect the “luminous ether”, an invisible half assumption that, according to the belief of the time, filled the space to allow the propagation of light. With Your experiment They hoped to measure a difference in the speed of light depending on whether it moved in favor or against the “ether wind” created by the movement of the earth. However, they found no variation at all. Sometimes, scientific progress does not come from finding what is sought, but of accepting the evidence that hits old certainty. This was how this failure It became one of the most important results in the history of physics. He showed that the speed of light was constant regardless of the observer’s movement, knocking down the ether theory and laying the empirical bases for the revolution that Einstein would unleash later. What is a light year and what is used for Since 1983, the speed of light is no longer something that scientists try to measure with increasing precision. Its value was set with such accuracy which is now the meter itself that is defined according to the light. One meter is “the length of the path traveled by light in a vacuum during a time interval of 1/299792458 seconds.” This change hides a deep truth: the constancy of the speed of light is a more fundamental property of our universe than our own units of measure. We no longer use meters to measure the speed of light, we use the speed of light to define the subway. And this is how one of the largest units of measure we use is born, and that has been crucial to understand the immense scales of the universe. Although your name includes the word “year”, a light year is not a measure of time, but of distance. In a nutshell, a light year is the distance that a ray of light travels in a vacuum during the course of a terrestrial year. That is, in 365 days. Given the incredible speed at which the light travels, it is an astronomical distance, of approximately 9.5 billion kilometers. We use the light years because the distances in space are so huge that measuring them in kilometers would be totally impractical. For example, The exoplanet closest to EarthNext Centauri B, is about 4.2 light years away. In kilometers, that figure would be almost 40 billion, a much more difficult number to handle and contextualize. How a light year is calculated in kilometers A laser indicates the center of the galaxy … Read more

One of the greatest consultants has brought the war against teleworking to the extreme: a “traffic light” to control

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PricewaterhouseCoopers multinational consultant (PWC) decided A little less than a year ago than The 100% Teleworking Era had ended. He joined the decisions that had adopted competitive companies such as EY. The striking of the movement were its conditions: it would geolocate their teleworkors to control that they were going to the office 60% of the day, the minimum amount that it now demanded (after having requested 40% until that moment). Now, thanks to Financial Times We know how they are carrying out control in their offices in the United Kingdom. Traffic lights. PWC measures have not only fallen into broken bag, but have intensified. Since April, the company is registering in a control panel the assistance and if the three days they demand at the week are passed in the office. To control compliance more visually, the company has established an indicator based on traffic light colors. Those employees who meet have a “green” in their state. The profile of those that drops from 60% has an amber, and those that fall from 40% have a red. In addition to the workers themselves, supervisors, heads of business units and directors have access to this traffic light. Thorough control. To verify that the employees go to the offices (OA meetings with customers, outside them), the company is carrying out a monitoring of the location of the wifi connections of the laptops. The data that is collected following this control is intended with the assistance or absence indicated in Workday, the software used for human resources issues, and in the personnel control sheets. In addition to the WiFi, PWC also has control of when employees pass their cards as an signing to enter and leave the offices. Policies against the old trick. The verification of assistance based on the entry and exit signings is something that many companies have carried out. Those employees who wanted to try to skip that control did something simple, according to a study: 58% of the workers employed under a hybrid work system went to the office, signed and then they left. Amazon already ended this picaresque establishing a minimum time to go to the office. Hey also reinforced Its access policies with lathes Checking that 50% of some teams breached the demands for assistance to their facilities. The control based on Wi -Fi connections is the brooch to these policies. Consequences. The question is what happens to employees who have a red or amber in their traffic light. And the internal guide for employees to which the Financial Times has accessed is clear: they face formal sanctions and a reduction of their performance in evaluations, where extra bonuses are played to their base salary. That same guide includes special exceptions or permits for family or disease reasons. Employee reactions. PWC workers are complaining so much about this scrutiny that a high -rank worker has told the Financial Times that he has lost his account of how many complaints he received. Employees are restless about tracking methods, and seek more transparency since the pressure to be fulfilled rose. It goes in the line of the best qualified employees in companies of the S&P 500: Rotation triggered by imposing face -to -face. According to a study by McKinsey, return to the office It is not enough to improve productivity. A company spokesman said that the control panel “guarantees that our people have easy access to their assistance data, so that they can manage and plan their time in a way that works for them, our equipment and our clients.” The paradox. The ‘Big Four’ have been serious with the return to the office, but they have always been in the spotlight of the management of extra hours, and Work fined them in Spain for having lacked time registration (mandatory by law since 2019) and for excess of day. The macro -inspection ended, at least 1.4 million euros that had to pay for different circumstances for social security fees. Image | Flickr (Raul Muñoz) and Carlos Alberto Gómez Iñiguez in Unspash In Xataka | The companies bet on the return to the office. Public administration keeps an ace in the sleeve: Teleworking

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