In 1966 a player from Argentina was sent off but there was no way to explain it to him. Since then there have been yellow and red cards

When two people want to understand each other but do not speak the same language, they try to do so by speaking louder, gesticulating or resorting to things they do not understand about borders. And be careful, this is assuming that in football we always want to understand the referee: it would not be the first or the last time that a player acts the Swede when faced with a warning or a substitution… if he is winning, of course. Despite the sui generis speech by Tom Cruise In the last World Cup 2026, in modern football we manage with English (however tacky) and the rules of the IFAB, made up of the four football associations of the United Kingdom and FIFA, which allows anyone to know what it means when the referee team raises the flag or a card suddenly appears. It wasn’t always like this, so imagine the pitched battles that took place. The problem. An Italian and a Chilean go and… no, it’s not a joke: at the beginning of the 60s there were episodes of great violence in football and one of the most sadly remembered matches was the match between Chile and Italy in the 1962 World Cup, so much so that it is known as the “Battle of Santiago“. At that time there were no mechanisms to put a stop to that aggressiveness in the form of fights and fouls that occurred as a result of the heat on the playing field. The World Cup that changed everything. The quarterfinal match between Argentina and England in the 1966 World Cup was a before and after. As pick up the Smithonianat one point, an Argentine player tried to communicate with the (German) referee and his vehement gestures and pleas, impossible for the referee to understand, cost him expulsion for verbal violence. The player refused to leave the field until Kenneth George Aston, a member of the FIFA Referees Committee and also responsible for the refereeing of that World Cup, intervened. In that match the referee Rudolf Kreitlein had warned the English Bobby and Jack Charlton and had expelled the Argentine Antonio Rattinbut it was so unclear in the game that those interested they found out better laterthanks to the press. In fact, so much so that the England coach, Alf Ramsey, He went to a FIFA representative to clear up any doubts. Of course, the heat resulting from the match, the ambient noise and the language barrier between players and referee made understanding each other an impossible mission. Aston came to that conclusion, and he left there determined to change it. The solution. So he set out to do something to make the referee’s decisions clearer for both players and spectators. And something came to mind that everyone knows: traffic lights. Aston counts how it came to him: “As I was driving down Kensington Street in London, the traffic light turned red and I thought: ‘Yellow’, you can still get through; ‘Red’ means stop, out of bounds.” When he got home, he told his wife Hilda about his idea, who they count He disappeared from the room to return a few minutes later with two cardboard cards that fit perfectly in his shirt pocket, thus materializing the idea. The system officially premiered at the 1970 World Cup in Mexico, 107 years after the birth of football’s first governing body, and since then it has been adopted in all federations. The power of a simple cardboard. The writer Rob Walker summarizes well the effect that that simple piece of paper has: it has enormous power when a referee displays it in an almost theatrical way in the player’s face. It provokes a stadium full of whistles and exaggerated gestures from the arms of the cautioned player and his teammates. Because everyone knows what it means: the loss of possession of the ball, a free kick and even being left with one less player on the field of play. Kenneth George Aston, who died in 2001, summarized the vision of football where that gesture that he himself invented and that is still valid in each and every match has extreme importance: a dramatic work in two acts with 22 actors and a stage director, the referee, without a script and without a known ending. In Xataka | Argentina 6 – Peru 0: the story of the alleged biggest fixing of the World Cups between dictatorships and missing people In Xataka | There is something in which Uruguay is a true and overwhelming world power: generating elite footballers Cover | Jason Gulledge and Tasnim News Agency

the cities are no longer yellow

The astronauts who have been lucky enough to travel to space more than once in the last decade are privileged witnesses of a chromatic change on a planetary scale. From their vantage point 400 kilometers high, they have been able to see that the cities, previously faint spots of amber, now shine with an intense white light. It’s not a metaphor. It is the visible trace of one of the most rapid and widespread infrastructure transformations in recent history: the great replacement of public lighting. We have retired the old sodium vapor streetlights and massively embraced LED. This change, driven by regulation in favor of energy efficiency, has redrawn the night map of the Earth, a phenomenon that can be seen more clearly from space. The invention that earned a Nobel Prize in Physics. Old sodium vapor lamps, especially low-pressure ones, were monochromatic in nature. They emitted light in a very narrow band of the spectrum, resulting in that characteristic and ubiquitous yellow-orange hue that tinted our streets and skies. LED lights work in a completely different way. His breakthrough, which earned Isamu Akasaki, Hiroshi Amano and Shuji Nakamura the 2014 Nobel Prize in Physicswas the invention of the high-efficiency blue LED. By combining this blue LED with a phosphor coating, it was finally possible to generate a bright and affordable white light. This diode is not only more efficient (exceeding 300 lumens per watt, compared to 16 for an incandescent bulb), but it offers a much broader spectrum. Southern Europe in 2025 from the International Space Station. Image: Don Pettit The cities changed color. To the eyes of a night observer in space, cities have gone from being yellow to glowing bluish white. Milan is the paradigmatic case: it completed its transition to LED in 2015, and appears in an ESA comparison with before and after photos taken by astronauts André Kuipers and Samantha Cristoforetti. But it is by no means the only case. Los Angeles was a pioneering city: it ordered the replacement of 140,000 streetlights in 2009. Buenos Aires modernized its lighting with smart LED streetlights between 2013 and 2016. New York finished replacing 500,000 bulbs in 2023. Barcelona plans total remote management of public lighting by 2028. But India is the country that carries out the largest replacement in the world, with more than 13 million LED streetlights already installed. The b side of this transformation. Like any revolution, the LED has a dark side. Light is cheaper, so cities are not only replacing old streetlights, but also increasing the number of light points or their intensity. The result is that we are leaving a brighter planet, where it is most difficult to escape of light pollution. The statistics indicated otherwise, but it must be taken into account that light pollution is measured by satellites, and satellites are partially blind to blue light. This means that the actual increase in light pollution, especially that perceived by human beingsis much higher than official figures indicate. To make matters worse, blue light is the one that interferes the most with our biological clock, and can affect the quality of sleep, in the same way that disorients migratory birds and the moths. The future is adjustable. The solution is not to go back to sodium. The efficiency of the LED is indisputable. The key, as with any technology, is in its application. The next phase of this transition is not about changing light bulbs, but about installing smart streetlights. It is estimated that almost one in four streetlights will be smart by 2030. When connected, they can regulate their intensity depending on the time or traffic, detect faults in real time and collect environmental data. This remote management will allow one of the new lighting maxims to be applied: using only the necessary light, when and where it is needed. In parallel, other solutions have emerged to protect biodiversity, such as red light streetlights being tested in Nordic cities so as not to disturb the bats. and the idea of ​​bioluminescence as an organic way of generating light without any electrical consumption and with minimal environmental impact. Image | The Iberian Peninsula in 2012, by astronaut Don Pettit In Xataka | Why sunlight doesn’t illuminate space: solving the question a child sent to the ISS

the cities are no longer yellow

Astronauts who have been lucky enough to travel to space more than once in the last decade are privileged witnesses of a chromatic change on a planetary scale. From their vantage point 400 kilometers high, they have been able to see that the cities, previously faint spots of amber, now shine with an intense white light. It’s not a metaphor. It is the visible trace of one of the most rapid and widespread infrastructure transformations in recent history: the great replacement of public lighting. We have retired the old sodium vapor streetlights and massively embraced LED. This change, driven by regulation in favor of energy efficiency, has redrawn the night map of the Earth, a phenomenon that can be seen more clearly from space. The invention that earned a Nobel Prize in Physics. Old sodium vapor lamps, especially low-pressure ones, were monochromatic in nature. They emitted light in a very narrow band of the spectrum, resulting in that characteristic and ubiquitous yellow-orange hue that tinted our streets and skies. LED lights work in a completely different way. His breakthrough, which earned Isamu Akasaki, Hiroshi Amano and Shuji Nakamura the 2014 Nobel Prize in Physicswas the invention of the high-efficiency blue LED. By combining this blue LED with a phosphor coating, it was finally possible to generate a bright and affordable white light. This diode is not only more efficient (exceeding 300 lumens per watt, compared to 16 for an incandescent bulb), but it offers a much broader spectrum. Southern Europe in 2025 from the International Space Station. Image: Don Pettit The cities changed color. To the eyes of a night observer in space, cities have gone from being yellow to glowing bluish white. Milan is the paradigmatic case: it completed its transition to LED in 2015, and appears in an ESA comparison with before and after photos taken by astronauts André Kuipers and Samantha Cristoforetti. But it is by no means the only case. Los Angeles was a pioneering city: it ordered the replacement of 140,000 streetlights in 2009. Buenos Aires modernized its lighting with smart LED streetlights between 2013 and 2016. New York finished replacing 500,000 bulbs in 2023. Barcelona plans total remote management of public lighting by 2028. But India is the country that carries out the largest replacement in the world, with more than 13 million LED streetlights already installed. The b side of this transformation. Like any revolution, the LED has a dark side. Light is cheaper, so cities are not only replacing old streetlights, but also increasing the number of light points or their intensity. The result is that we are leaving a brighter planet, where it is most difficult to escape of light pollution. The statistics indicated otherwise, but it must be taken into account that light pollution is measured by satellites, and satellites are partially blind to blue light. This means that the actual increase in light pollution, especially that perceived by human beingsis much higher than official figures indicate. To make matters worse, blue light is the one that interferes the most with our biological clock, and can affect the quality of sleep, in the same way that disorients migratory birds and the moths. The future is adjustable. The solution is not to go back to sodium. The efficiency of the LED is indisputable. The key, as with any technology, is in its application. The next phase of this transition is not about changing light bulbs, but about installing smart streetlights. It is estimated that almost one in four streetlights will be smart by 2030. When connected, they can regulate their intensity depending on the time or traffic, detect faults in real time and collect environmental data. This remote management will allow one of the new lighting maxims to be applied: using only the necessary light, when and where it is needed. In parallel, other solutions have emerged to protect biodiversity, such as red light streetlights being tested in Nordic cities so as not to disturb the bats. and the idea of ​​bioluminescence as an organic way of generating light without any electrical consumption and with minimal environmental impact. Image | The Iberian Peninsula in 2012, by astronaut Don Pettit In Xataka | Why sunlight doesn’t illuminate space: solving the question a child sent to the ISS

We believed that the “road of yellow tiles” was a private cinema. Until some divers descended to the depths

The idea of the yellow tile road was born with the novel The Wonderful Wizard of Oz by L. Frank Baum (1900), where a golden path is described that leads to the Emerald city and symbolizes the trip to personal fulfillment and discovery. In the famous adaptation to the 1939 cinema, that path became a visual icon thanks to the pioneering use of Technicolor: the bright yellow contrasted with the intense green of the city and the blue sky, marking the passage of Dorothy from Kansas’s gray routine to a fantasy world. It turns out that in marine depths we had Another way of tile. A geological finding. History dates back to 2022. During the Luʻuaaahikikekumu expeditiona scientific team aboard E/V Nautilus shipwhile exploring the chain of old submarine volcanoes of Liliʻuokalani Ridge, he ran into Rocking formation that remembered the mythical “road of yellow tiles” of the cinema. The curious structure, located at the top of the submarine nootka, within the National Marino Monument Papahānaumokuākeait turned out to be an example of ancient volcanic geology: rock fragments generated by high -energy eruptions, known as hyaloclastitethat have fractured uniformly due to repeated cycles of heating and cooling by successive eruptions. This pattern, similar to the cracked of the surface of a Brownie, has conferred the rock an appearance of perfectly aligned cobblestone. Origins and characteristics. Hialoclastite is formed when hot magma comes into contact with water, fragmenting into vitreous particles and accumulating in the seabed. Over time, these deposits are compacted and cemented, and, in cases like this, exposed to thermal changes that They produce rectilinear fissures. The found sector showed a stretch of “baked scab” dry to touch, An optical effect that surprised the team and generated jokes on the “road to the Atlantis.” The inspection with the nautilus robotic arm allowed to collect samples from Ferromanganésic scabs (rich in iron and manganese oxides) that covered the background, a resource of scientific and industrial interest. Importance of the mission. That was the First systematic exploration Of these submarine mountains, whose main objective is to understand the mysterious discontinuity that presents its alignment in the ocean bed. The finding of “road” joined other unique observations of the expedition, such as the filming of a strange agency nicknamed Headless Chickn Monsterstrengthening the idea that the area houses poorly documented biological and geological phenomena. Beyond the visual anecdote, the identification and study of these formations provides key information about the Submarine eruptive processes and the tectonic evolution of the region, opening the door to new discoveries in one of the most remote and protected areas of the planet. Scientific context. He find It was also framed in an international effort to map and understand the underwater structures that make up the hidden geography of the oceans. The formation of the “path” in Nootka Seamount Not only illustrates how volcanic activity can generate visually striking patterns, but also offers clues about the systems behavior submarine magmatic and its interaction with water in High energy environments. Plus: These studies are essential to improve underwater volcanism models, evaluate potential mineral resources and understand how these geological habitats influence deep marine biodiversity, a field in which each expedition reveals more unknowns than certainties. Image | E/V Nautilus In Xataka | We know more than Mars than the seabed. An expert helps us to understand why it is still an enigma and what mysteries keep In Xataka | The Atlantic has a ‘lost city’ with the key to life on other planets. Now is in danger

Log In

Forgot password?

Forgot password?

Enter your account data and we will send you a link to reset your password.

Your password reset link appears to be invalid or expired.

Log in

Privacy Policy

Add to Collection

No Collections

Here you'll find all collections you've created before.