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NASA and video games use it more than a century after its discovery

June 24, 2026 by usatoday24

It had rained heavily that morning of October 16, 1943, so when it cleared Sir William Rowan Hamilton He finished his whiskey (no whiskey, that’s why it was Irish) and asked his fragile wife if they would go out for a walk around Dublin. He had been working on a mathematical problem involving complex numbers for years without success, and decided it was a good idea to get some air. That’s what he did. They walked, talked about their children’s future and as they crossed Broom Bridge Sir William’s light bulb suddenly went on. “Helen!” he exclaimed, “I don’t need to multiply triplets: I can use quadruples!” Helen didn’t know anything, of course, but at that moment quaternions were born, an extension of real numbers that more than a century or a half later are critical for NASA’s space missions and also for the video game industry. Good for Sir William. Worthy successor to Sir Isaac Newton Sir William Rowan Hamilton (Dublin, 1805-1865) stood out since childhood. At the age of thirteen he already spoke several European languages, but also Persian, Arabic, Sanskrit and Malay. When he was 8 years old, his fame was already notable, and the tour of the American calculus prodigy, Zerah Colburn, gave him the opportunity to prove his brilliance. That 9-year-old American boy crushed him on a mental arithmetic test, and that showed little Hamilton the way. He would continue studying languages, but what he wanted to do was dedicate himself to mathematics. In 1823 that young man achieved first place among 100 candidates in the Trinity College exams. The prestigious Irish university soon discovered the brilliance of Hamilton, who already in his student days wrote part of his treatise on optics, the well-known “Theory of Ray Systems“. That was key so that in 1827 he ended up occupying the position of Royal Astronomer of Ireland, a well-paid chair that was unheard of for it to end up in the hands of an undergraduate. Not only that: it gave Hamilton the opportunity to research freely, something he would not have been able to do in a hypothetical position as a professor at Trinity College. His work in the field of optics would end up mixing with that of dynamics and algebra in the 1830s. His work with several colleagues led him to pursue a very special objective: to try to generalize complex numbers in order to represent rotations and movements of vectors in space. three-dimensional. If he succeeded, he would have a very powerful tool to formulate the basic laws of physics and describe the movement of rigid bodies in space. In 1833 he presented a paper to the Royal Irish Academy in which he defined addition and maltiplication operations on pairs of real numbers. He was the first mathematician to treat complex numbers as ordered pairs (Gauss had done so before, but without publishing his discoveries) and his vision was closely related to physics. To try to advance in that field, Hamilton tried to study what he called the “Triplet Theory”, hypercomplex numbers referred to three-dimensional space in the same way that complex numbers referred to two-dimensional space. It was that that led him to the discovery of the quaternions. The triplets did not have the common properties of complex numbers when trying to multiply them and his obsession with the problem was such that even his children ended up asking him the same thing every morning: “Well dad, can you multiply triplets now?”, to which he replied: “no, for now I can only add and subtract them.” And then came that ride. Hamilton would describe that happy moment of sudden discovery in a letter to one of his sons fifteen years after it occurred: “Tomorrow will be the fifteenth birthday of the quaternions. They came into life, or into the light, fully grown, on October 16, 1843, when I was walking with Mrs. Hamilton towards Dublin, and we arrived at Broughman’s Bridge. That is, then and there, I closed the galvanic circuit of thought and the sparks that fell were the fundamental equations between i, j, k; exactly as I have used them ever since. I took out, at that moment, a pocket notebook, which still exists, and made a note, on which, at that very moment, I felt that it would possibly be valuable to extend my work for at least the ten (or it could be fifteen) years to come. It is fair to say that this happened because I felt, at that moment, that a problem had been solved, an intellectual desire relieved, a desire that had haunted me for at least the previous fifteen years. I could not resist the impulse to take my knife and engrave on a stone of Brougham Bridge the fundamental formula with the symbols i, j, k: i2=j2=k2=ijk=−1 which contained the solution to the Problem, which has since survived as an inscription. Hamilton called a quadruple with those multiplication rules a quaternion, and he dedicated the rest of his life to studying them, developing them, and teaching them to students and academics. Quaternions in space, quaternions in video games The study of quaternions has led to many other mathematical discoveries, but their application has been amazing more than a century and a half after that walk. In fact, quaternions are used in flight computers or in simulation studies in which large changes in angle are involved when monitoring the altitude of the spacecraft. The use of quaternions eliminate problems like Euler singularity and allows the use of only four parameters, in addition to being ideal for digital error control. In fact the so-called unitary quaternions allow counting with a mathematical notation to represent the orientations and rotations of objects in three dimensions, and therefore are widely used in robotics or navigation satellite orbital mechanics and are used in NASA missions for decades. That same ability to represent rotations in space is key for the development of 3D video games … Read more

the AEMET rule to declare a heat wave in Spain

June 24, 2026 by usatoday24

We spent the summer talking about heat waves and extreme temperaturesbut sometimes it is difficult for us to differentiate exactly what they are. If we look back to the summer of 2025, we remember that there was constant talk of heat waves. We may have the feeling that July and August were a huge heat wave. However, if we look at the data from the State Meteorological Agency (AEMET)we will see that only 3 heat waves were recorded in the Peninsula and the Balearic Islands and 2 in the Canary Islands. The key is that they were long heat waves. Without going any further, the first of them extended from June 18 to July 4. The next one arrived on July 15, so we didn’t even have two weeks of respite. Be that as it may, the concept of a heat wave is somewhat diffuse. It is not described the same in some countries as in others, and even has variations in the same country. Of course, no matter what definition we stick to, it is clear that they are becoming more and more intense. That is why it is so important to take measures against global warming. What exactly is a heat wave: the scientific definition Actually, There is no single definition of what a heat wave is.. Broadly speaking, it can be considered a prolonged period of extreme temperatures for a specific region. As we have already seen, each country has its own definition, which usually follows historically selected criteria. Even institutions can have very specific definitions. For example, the World Health Organization (WHO) and the World Meteorological Organization (WMO) define a heat wave as an unusually hot and dry or hot and humid period in a specific place, with visible effects on nature and people’s health. Contrary to what usually happens with the definitions of different countries, these two institutions include the health of people and the effects on nature as important factors in the definition of a heat wave. The three requirements of the AEMET to declare a heat wave in Spain In the case of Spain, the criteria to describe a heat wave They are provided by the AEMET. According to this, three requirements must be met: Duration of at least 3 consecutive days Detection of extremely high temperatures in at least 10% of the reference observatories Maximums located above the 95th percentile of temperatures measured between July and August from 1971 to 2000. These criteria refer to mainland Spain and the Balearic Islands.. With the Canary Islands there is an exception, since they only have 6 observatories. If we obeyed the 10% rule, it would be enough to detect extreme temperatures above the guidelines in only one of them. It is too little, so there is a special requirement that at least two observatories detect temperatures above the 95th percentile. How long does a heat wave last? There is no defined duration for a heat wave. As we have seen, in Spain it must last at least 3 consecutive days to be considered as such. And from there to heaven. At the moment, the longest that has been recorded in Spain lasted 26 days and It was produced in 2015. It should be noted that in 2022 the heat waves were shorter, but it stands out for being the year with the most heat wave days added together. A total of 41, to which 2025 came dangerously close, with 33 days under a heat wave. Other countries, according to their criteria, have experienced heat waves that may be shorter, but very surprising due to their location. For example, in 2025, the subarctic regions of Norway, Sweden and Finland recorded their worst heat wave since records exist, with 21 consecutive days and temperatures that exceeded 30°C within the Arctic Circle itself. Why does the temperature threshold change depending on the province? As we have already seen, for the AEMET, one of its criteria when defining a heat wave is that the reference stations register temperatures above the 95th percentile measured in July and August from 1971 to 2000. Logically, each province will have different records. The records of Seville will not be the same as those of Oviedo. The 95th percentile temperature will be much higher in the Andalusian capital than in the Asturian capital. Be that as it may, it should be noted that there is no threshold per province, but rather per reference station. Each province may have several of these seasons, with slightly different temperatures. To give an example based on AEMET datain Jaén there are three seasons, whose thresholds are 39ºC, 40ºC and 42ºC. If we go to colder areas, in A Coruña there are three seasons and their thresholds are 29.2ºC, 30ºC and 31.6ºC. How to know if there is a heat wave alert in your autonomous community The best way to know if there is a heat wave in our autonomous community or an alert for intensely high temperatures is to stay up to date with AEMET updates. In any case, it should be noted that, individually, we are more interested in being up to date with the notices. We may not have a heat wave for a few days, because there are not enough stations in the region that meet the criteria, but there may be temperatures high enough in specific points to put people’s health at risk. Therefore, we must make a monitoring unusually high temperature alerts; which, as with rain or wind, follow a color code (green, yellow, orange or red) to indicate the level of risk and the measures to take. Real-time weather warning map: from yellow alert to red warning Unusually high temperature alerts are defined with three colors. Yellow refers to significant risk, orange to high risk and red to extreme risk.. If the area is colored green (or gray in the case of maps), there is no risk. Every day, the AEMET updates its color warning maps, so it is important … Read more

Madrid’s plan to renew its roads this summer

June 23, 2026 by usatoday24

Madrid Calle 30 has launched its annual renewal campaign of the pavement on the roads under its management. This year, the operation has started on the A-6 highway and will also reach sections of the M-30 tunnel, as well as several critical points on the capital’s roads. The investment amounts to around 6.2 million euros and the work will continue throughout the summer. Asphalt renewal campaign. In order to adapt the pavement in its road network, Madrid City Council expanded last January the actions of Madrid Calle 30. And in addition to the M-30 roads itself, the municipal company now adds the management of all the access roads to the capital, that is, the A-1, A-2, A-3, A-4, A-5, A-6, A-42, M-11, M-23, M-500 and M-607. In total, Madrid Calle 30 is responsible for the maintenance of 2.7 million square meters of road. And this summer’s campaign will act on 9% of that surface. What exactly do the jobs consist of? The performances are divided into three phases. First, milling is carried out, which consists of removing the surface layer of the damaged or worn pavement. The new asphalt agglomerate is then applied. Finally, the road markings are repainted. For the entire campaign, the use of about 19,000 tons of asphalt mixtures is estimated. The works will be carried out at night to minimize the impact on traffic. Four fronts of action. The campaign is deployed in four different areas: A-6 and its Bus-HOV lane (160,000 m²): these are the largest works. They span from Calle de la Princesa, at the confluence with the Moncloa interchange, to the Hipódromo de la Zarzuela. Work on the Bus-HOV lane began on June 19 and will continue on June 26 and 27. The A-6 in the inbound direction will be paved from July 15 to 28, and in the outbound direction, from July 26 to August 17. M-30 tunnel (50,000 m²): the interior section between the south junction-legazpi plaza and the Marqués de Vadillo-Prámides roundabout, in both directions of circulation. Vallecas Bridge (12,500 m²): the action will be carried out once the waterproofing work is completed, works that are integrated as part of the rehabilitation of the bridge and are still in progress. O’Donnell board with the M-23 (20,000 m²): in the outward direction, completing the campaign for this summer. And all at night. As we have mentioned, the reason is simply to reduce traffic impacts to a minimum on a network that is already congested every day. Alternative routes will be enabled on each section, which can be consulted through the website. Signage will also be reinforced at the affected points. Extension. This Madrid Calle 30 campaign is part of Operation Asphalt 2026 that is being prepared by the Works and Equipment Area of the Madrid City Council, and which in the coming weeks will extend similar actions to the 21 districts of the city. So the works that have started with the M-30 and its accesses are just the tip of the iceberg of the entire maintenance plan that is expected for this summer. In Xataka | In February, historic rains broke the roads. Málaga has just received the go-ahead to repair the A-7 and A-45

In Galicia there is a town that every summer recreates a Viking landing with ‘drakkars’. And it makes perfect sense

June 23, 2026 by usatoday24

If you want to experience a Viking landing in your flesh, a historical representation that includes longships like those used by Nordic people in the 9th century to sail the seas, warriors with axes and medieval fortresses, you don’t need to travel to Scandinavia. In Catoira, a Galician town of just over 3,000 inhabitants, they celebrate every summer a pilgrimage that for a few hours turns the Ría de Arousa into the scene of an epic battle. The most interesting thing is its background: it is not a whimsical festival, but rather a tribute to the role that the town played centuries ago in the defense of Galicia. Vikings in Galicia? When you think of Vikings, the first thing that comes to mind is Scandinavia and the Nordic navigators who centuries ago, between the 8th and 11th AD, dedicated themselves to sailing, trading and plundering across Europe. However, every summer Catoira, a small town in the province of Pontevedra, celebrates a pilgrimage focused precisely on the Vikings. It has been doing so for more than six decades and with such success that its celebration has achieved the seal of international tourist interest and, in just one week, attracts more than 100,000 people. Not bad if we take into account that in the town they live 3,300. An old connection. Catoira celebrating a Viking party makes all the sense in the world. The town may be more than 2,000 kilometers from Norway, but centuries ago it played a crucial role in repelling raids by the normative pirates (also Saracens) who came to Galician lands in search of loot and, above all, an easy access route to Santiago de Compostela. To understand it, you must first understand the strategic geographical role of Catoira, a town located at the inland end of the Arousa estuary, near the mouth of the Ulla. If the pirates wanted to reach Santiago, where the 9th century The tomb of Saint James the Greater was located, it offered them an ideal access door. “The key and seal of Galicia”. The local rulers soon understood the role that the Catoira area played and that is why they fortified it with the West Towersa medieval defensive system located at the head of the estuary. Today we preserve two of the seven original towers that between the 9th and 10th centuries They allowed the locals to stand up to Norman raids. “The Vikings who arrived in Galicia in the 9th and 10th centuries with the intention of plundering our lands encountered resistance from the troops of the Castellum Honestiwhich during that time prevented the Norman armies and Saracen pirates from ascending the river, to the point of this fortress being considered the ‘Key and seal of Galicia’”, remember the Catoira Town Hall. A party… and a tribute. A few decades ago, in 1960the members of the Ateneo do Ullán decided to remember the heroic past of the town with an act that basically commemorated the landings in the lands of Ullá. As the City Council explains, it began as “a meeting of friends with cultural concerns”, a celebration without major pretensions. Over time, however, the party gained strength. In 1965 a company took over the organization and during the next quarter of a century the pilgrimage continued to grow and increase its impact beyond Catoira, Pontevedra and even Galicia. It grew so much, in fact, that between the end of the 80s and the beginning of the 90s the City Council decided take charge of the organization. What had started as an improvised act gained the status of international holiday. There are no Vikings without longships. Proof of how much the pilgrimage expanded (and of its vocation to continue doing so) is that the event incorporated several longshipsthe characteristic warships used by the Norse and Germanic tribes. In 1993, the first one was built, named ‘Torres de Oeste’, and over time two others were added: ‘Frederikssund’ and ‘Ardglass-Catoira’. These are not more or less approximate copies. To make the first, a group of expert Catoirense craftsmen traveled to Denmark, where they studied Viking boat-building methods and were inspired by the Skuldelev 5a longship found in Denmark. The ‘Frederikssund’ is also an adaptation of an authentic 11th century ship, the Gokstadlocated in Norway. Ironies of history, today Catoira’s heroic past is celebrated with a pilgrimage in which the protagonists are the Vikings and in which (of course) there is no shortage of medieval markets, shows, seafood and red wine from Ulla. Images | Council of Catoira, Spain tourism and Xunta de Galicia In Xataka | When the Romans arrived in Galicia, they encountered the enemy they feared most: a river that stole their memory.

The Government confirms that 90% of main roads already have fast charging nearby

June 23, 2026 by usatoday24

In recent years, we have seen how Spain has been updated in terms of the number of vehicle chargers. What a good part of them don’t work It’s a different story, but the truth is that infrastructure is taking on a different tone in the country. This same issue is what the Secretary of State for Energy, Joan Groizard, has recently focused on, during the opening of the Electric Vehicle Fair in Madrid (VEM) has taken stock of the state of the charging infrastructure. The data on which it has placed the most emphasis is that nine out of every ten kilometers of the main road network already have a charging point of at least 100 kW less than 60 kilometers away. Why does this data matter? The European Union approved the AFIR regulation (Alternative Fuel Infrastructure Regulation) to force member countries to ensure that their main transport corridors have high-power chargers at sufficient distances. The specific objective for 2030 is for there to be points of at least 150 kW every 60 kilometers on these roads. What has confirmed Groizard is that Spain is already close to that threshold in coverage, although there is still room to reach the power required by European regulations. Moves Corridors. The main tool to achieve these objectives is the program Moves Corridorspromoted by the Ministry for the Ecological Transition. On June 3, the IDAE published the definitive resolution proposal of its first call: 337 fast and ultra-fast charging projects, with powers of at least 150 kW, will receive just over 97 million euros in public aid, of the 200 million that the program had allocated. The remaining amount (more than 102 million euros) will be added to other items planned to finance a second call, expected in 2027, according to Administration sources. consulted by La Tribuna de Automoción. Shadow areas. The selection criterion for the projects in this first call has not been to install chargers where there was already infrastructure, but rather The so-called “shadow areas” have been prioritizedstretches where there were hardly any alternatives for those traveling by electric. And the problem with the charging network in Spain is not the points that there are in total, but in which places they were positioned. Accumulating chargers in large cities does not solve a long trip in the rest of the country. The market is also changing sides. Groizard also took advantage of his intervention at the fair to highlight the number of registrations last May. According to ANFAC data (Spanish Association of Automobile and Truck Manufacturers), diesel reached just 3.7% of sales, while pure electric cars reached 11%, a historical monthly record in Spain. Adding plug-in hybrids, electrification already exceeds 20% of the market. “The excuse of recharging has its days numbered,” warned Groizard. There are currently more than 55,000 public charging points in operation (more than gas stations in Spain). Of course, 69% of all of them It is made up of slow chargers with up to 22kW of power. The remaining 31% looks like this: 2,253 charging points between 22 and 50kW. 9,015 charging points between 50 and 150 kW. 3,206 charging points between 150 and 250 kW. 2,469 points of 250kW or more. Which still doesn’t quite add up. The progress in coverage is real, but the state of the network still has cracks. And it is that according to the organization’s data As of the first quarter of 2026, more than 17,000 charging points were still out of service, 24% of the total. The causes range from breakdowns to installed points that are not yet connected to the network. Communities such as the Balearic Islands (45.5% of inoperative points) or Galicia (39.5%) have the worst records. What’s coming now? According to share from La Tribuna de Automoción, in the coming weeks, the Ministry for the Ecological Transition will submit to public consultation the National Action Framework (MAN), a document that will take stock of the state of the charging infrastructure at the end of 2025 and will set the roadmap for 2026 and 2027, including the next call for Moves Corredores. It will also be the first official and updated photograph of where Spain really is in this deployment. Cover image | Andrew Roberts In Xataka | In February, historic rains broke the roads. Málaga has just received the go-ahead to repair the A-7 and A-45

Nvidia’s solution to reduce water consumption in data centers to zero aims to be genius: use hot water

June 23, 2026 by usatoday24

Nvidia has announced a system of liquid cooling very special. Above all, because the concept of “refrigeration” is a bit confused here. The company has managed to reinvent this type of systems, and according to those responsible “the challenge of water consumption for data centers it is practically solved.” That’s saying a lot… or isn’t it? Jacuzzi cooling. The own Nvidia engineers They begin the description of their system by talking about how in jacuzzis the water is usually between 38 and 40 ºC, a temperature that makes most people last about 15 minutes in them. And the funny thing is that Nvidia’s new AI servers can use liquid cooling with water that is even hotter: up to 45ºC (113ºF). That is precisely the key to making the entire system efficient. Goodbye to fans. Nvidia’s new Rubin architecture claims to be the first in the world with an end-to-end liquid cooling system. At Nvidia they seal the server boards and eliminate noisy fans that shoot noise levels above 85 decibels. Elementary physics. The concept behind this idea is counterintuitive, but also brilliant. The chips generate so much heat that a liquid composed of 75% water and 25% propylene glycol entering at 45ºC is capable of absorbing the thermal load dissipated by these chips. The fluid absorbs that heat and ends up leaving the circuit at around 55ºC without the performance of the processor degrading at all. Good for 45ºC. The key is that Nvidia starts from that starting temperature of the water, which is 45º. In a liquid cooling circuit in PCs, the liquid is usually between 25 and 30 ºC. Here Nvidia manages to ensure that with this initial temperature the thermal difference with the outside air is high enough for the system to work passively in most temperate climates. The heat is expelled by gigantic external radiators. Water is only needed on the first fill. Even more interesting is the fact that this water circuit only needs to be filled once for the entire useful life of the plant, at least in theory. This eliminates traditional systems that use evaporative cooling towers. These systems consume enormous amounts of water, and according to Nvidia this makes it possible to cut water consumption of data centers by almost 100%. But. Although Nvidia’s idea is promising, the company only talks about what happens within the four walls of data centers. The impact internally in the data center is extraordinary, but what about outside? The problem, they explain on TechCrunchis that data centers they need a lot of energyand both the generation of that energy and the creation of the chips themselves used in data centers can fold either triple to the consumption of the data center itself. The gas and coal bill. Although renewable energies are increasingly covering a greater part of the needs in these data centersthe use of coal and natural gas will continue to be very notable in these facilities. According to the International Energy Association (IEA), these two sources will continue to represent 40% of the total used in AI data centers until at least 2030. And the generation of both types of energy requires vast quantities of water: natural gas plants they use 1.17 liters of water for every kWh of electricity they generate. Coal ones are even worse, requiring 2.2 liters per kWh. Good news, but not so good. The system devised by Nvidia can solve the problem within data centers and is even promising when it comes to reduce noise levels generated by these facilities. However, there are still equally important challenges to ensure that water consumption in other phases of this cycle is not so colossal. It is a good step, without a doubt, but the room for improvement is still notable in this area. In Xataka | Jensen Huang has taken a look at the idea of putting data centers in space and has come to one conclusion: let’s not freak out

minimum age to ride a scooter, cyclists in the opposite direction and motorcycles on the shoulders

June 23, 2026 by usatoday24

It’s been a while since it was rumored but it was not until today when the Government has announced the modification of the General Traffic Regulations to implement important changes for the most vulnerable users. From scooter users to pedestrians, but there are also changes for taxi professionals. As the Government made known in a press conference after the Council of Ministers, the Ministry of the Interior thus welcomes the changes that have been taking place on the streets and highways of our country where the use of electric scooters has exploded. But in addition, it also modernizes some rules that were believed to be obsolete. All changes will come into effect on October 1. Now, in one fell swoop, changes are coming for users of personal mobility vehicles (PMV) but also for motorcyclists, taxi professionals and even pedestrians. Updating the standard Although the cities and the DGT itself have been including some patches to assimilate the explosion of electric scooter users on our streets, the truth is that we had been hearing rumors for some time that the Government was looking for a more in-depth review that entailed changes for different users. Today they have confirmed it and they are the following: Electric scooters Users will have to be at least 15 years old to drive an electric scooter At night or in low visibility conditions, users will be required to wear reflective vests, a helmet and lights. Professionals who use electric scooters will have to comply with this rule both day and night. They must always go on the road and outside of town they can only move on segregated routes, such as bike lanes. It is important to remember that scooters must comply with the technical demands imposed from Europe such as not exceeding 25 km/h maximum. Failure to comply with the rules will result in a fine of 200 euros. Bikers Motorcyclists must always use gloves, both the driver and the passenger. The motorcyclist at the controls will be required to wear closed-toed shoes, so flip-flops are prohibited. Motorists will be able to use the shoulder in the event of a traffic jam, as long as they do not exceed 30 km/h. The helmets will have to be approved and not just certified. Professionals who use motorcycles as a means of transportation in their work must wear a reflective vest. The fines for failing to comply with these provisions are 200 euros. Cyclists They will have to have mandatory lighting whenever they travel on interurban roads. Professionals who use bicycles as a means of transportation will have to wear a vest on both urban and interurban roads. On urban roads, the cyclist will circulate in the center of the lane to improve visibility. Cyclists will be able to travel in the opposite direction on one-way streets limited to a maximum of 30 km/h. Failure to comply with the rules will result in a fine of 200 euros. Drivers When a driver overtakes a cyclist on interurban roads, they will have to reduce their speed by 20 km/h with respect to the maximum speed of the road. On roads with only one lane in each direction, you must occupy the entire adjacent lane and never leave less than 1.5 meters of distance from the cyclist. Drivers must leave a safety distance of at least five meters within the city. Drivers will also have to leave the minimum separation of 1.5 meters and reduce their speed by 20 km/h when overtaking vehicles immobilized due to an accident, breakdown, assistance work and those involved in maintenance work or traffic regulation. In the event of snowfall, overtaking will be prohibited and the left lane will have to be left free for the circulation of emergency services. In traffic jams, when traveling at very low speed, it will be mandatory to turn left or right to leave a central fast lane in which emergency services can circulate. Professional drivers Professionals in taxis, goods vehicles and driving schools will be required to wear their seat belts fastened in any case, both inside and outside the town. The only exception contemplated is for the person who travels as co-pilot in an ambulance, assistance equipped for technical-health assistance as long as it is circulating in emergency service. Motorhomes Specific changes are established for your parking. They will be prohibited from extending objects that exceed the perimeter of the vehicle (such as awnings), from allowing the vehicle to rest on its tires, and from pouring fluids from the interior. Photo | JavyGo and André Mašek In Xataka | Spain has standardized a small trick to avoid rear-end accidents. The DGT is not very satisfied

Prime Day has all these Corsair and Elgato deals

June 23, 2026 by usatoday24

Prime Day in June is ending and there are already some deals that have flown. Luckily, this is an exception and we can still get our hands on a lot of bargains. In this article, we are going to focus on devices from Corsair and Elgato, two brands that have a fairly large range of products very oriented to gaming, but they can be great for you when it comes to work. Elgato Stream Deck Neo – 8 customizable keys, 2 Touch Points, fly through your tasks and processes – Control Word, Excel, PowerPoint, Teams, Zoom, Spotify, etc. Easy setup – For Mac and PC The price could vary. We earn commission from these links All the offers that we are going to show you below have one requirement in common: You have to be an Amazon Prime user to be able to take advantage of them (although you can use 30-day free trial period). We have selected six and there is a fairly large variety of devices or products in them: Corsair Saber v2 Pro Mouse by 69.99 eurosan ultralight keyboard that is ideal for travel. Corsair HS80 RGB Wireless Headphones by 89.99 euroswireless headphones compatible with Dolby Atmos. Corsair K65 Plus Wireless Keyboard by 109.99 eurosa resistant keyboard in a small format. Elgato Stream Deck MK.2 White by 119.99 eurosan ideal device to improve your productivity. Elgato Stream Deck Neo by 69.99 eurosmore compact version of the Stream Deck. Corsair T3 Rush Chair by 259.90 eurosa comfortable chair with breathable fabric. Corsair Saber v2 Pro Mouse The first Corsair peripheral that we put in this selection of offers is the Saber v2 Pro, a wireless mouse that stands out for being very light (it barely weighs 36 grams). It has a highly customizable sensor and mechanical switches, which are more reliable and durable. Furthermore, it has an autonomy of up to 70 hours. Right now it costs 69.99 euros (its RRP is 109.99 euros). Corsair Saber v2 Pro Ultralight Wireless FPS Gaming Mouse – 33K dpi, 36g Weight, 8,000Hz Advanced Polling, Mechanical Switches, up to 70 Hours Battery Life, Web Hub – Black The price could vary. We earn commission from these links Corsair HS80 RGB Wireless Headphones Although there are more Corsair headphones on sale this Prime Day, we’re sticking with these HS80 RGB Wireless based on price. They are headphones that stand out for being comfortable and breathable, as well as for being wireless, which is much more comfortable when using them for long sessions. In addition, its microphone captures the voice very clearly. and are compatible with Dolby Atmos. From 149.99 euros that marks their RRP, they cost now 89.99 euros. Corsair HS80 RGB Wireless Wireless Gaming Headset – Carbon The price could vary. We earn commission from these links Corsair K65 Plus Wireless Keyboard The Corsair K65 Plus Wireless keyboard is a very interesting option for small tables or if you are looking for something compact to travel. It is a 75% format keyboard that has tactile switches and the classic hammering noise that many users like. In addition, it has a roulette-shaped selector to change various options. From 169.99 euros it now costs 109.99 euros. Corsair K65 Plus Wireless 75% RGB Hot Swappable Mechanical Gaming Keyboard – Pre-Lubricated Corsair MLX Fusion Tactile Switches – PBT Keycaps – QWERTY ES – Black The price could vary. We earn commission from these links Elgato Stream Deck MK.2 White In this selection of offers we bring you two Stream Decks, starting first with this MK.2 model in white. It is a very useful peripheral that has 15 keys programmable to the millimeter: they will help you, for example, to simultaneously open all the apps you use to work with a single button. This model costs 119.99 eurosone of its lowest prices to date. Elgato Stream Deck MK.2 White – Studio Controller, 15 Macro Keys, Activate Actions in Apps and Software like OBS, Twitch, YouTube and Others, Works on Mac and PC The price could vary. We earn commission from these links Elgato Stream Deck Neo If you prefer a simpler and cheaper option, then the Stream Deck Neo may be better for you. This model reduces the number of keys to eight, but adds to the formula a small screen to place useful information (such as the time) and two touch buttons to “turn the page” in the commands that we have programmed. Now it costs 69.99 euros. Elgato Stream Deck Neo – 8 customizable keys, 2 Touch Points, fly through your tasks and processes – Control Word, Excel, PowerPoint, Teams, Zoom, Spotify, etc. Easy setup – For Mac and PC The price could vary. We earn commission from these links Corsair T3 Rush Chair And we close with a chair, specifically the Corsair T3 Rush. It is a gaming chair, but it has a much more discreet design than most of these. In addition, it has a resistant and breathable fabric that will not make you stuck in summer. Its steel structure is resistant and has both a cervical and lumbar cushion. It is available for 259.90 euros. Corsair T3 Rush Fabric Gaming Chair (2023) – Gray and Charcoal The price could vary. We earn commission from these links Some of the links in this article are affiliated and may provide a benefit to Xataka. In case of non-availability, offers may vary. Images | Corsair In Xataka | Ultrawide monitor vs two monitors: productivity science says it’s not just inches that matter In Xataka | Best mice in quality price. Which one to buy based on use and seven recommended models

this startup has just shown that there is another way

June 23, 2026 by usatoday24

Still It is unclear whether humanoid robots will be the next big revolution of consumer technology, but there are certainly more and more companies competing to sneak one of these robots into our homes. They all have something in common: they are a lot like us, maybe too much. They have a face, torso, arms and legs. What if there is another better solution than that? That is what the startup Genesis AI believes, which has just presented its new generalist robot Genesis Eno, whose design is far from what we are used to seeing lately. In the words of the company itself: “Instead of imitating a fully human appearance, we have designed Eno based on human capabilities, prioritizing mobility, dexterity and functionality in the real world.” Genesis AI is a French-American startup, founded in 2025 and based in Palo Alto, California. They count in Forbes that the company raised $105 million in its latest financing round, which included investors such as Koshla Ventures and Eric Schmidt. Goodbye legs, hello wheels The Genesis Eno looks like a cross between a minimalist appliance and a humanoid robot. The first thing that stands out about its design is that it does not have legs, but rather moves on a base with wheels which allows you to move through space without needing so many joints. This gives it greater stability, although in environments with steps it is a limitation. On top of this base are a series of articulated panels that allow it to “stand up” and also fold down for storage when not in use. It also does not have a head, but instead has a kind of black piece where we assume that the sensors are housed so that it interacts with the environment. Genesis also offers another version with a screen mounted on the panel that would be the chest of the robot (you can see it in the main image). The key is in the hands What is very human are his arms, especially his hands. Genesis says the design of the hands has been copied so that it can handle objects that have been “designed with people in mind.” As they say in Humanoids Dailythe hands were developed in collaboration with Wuji Techa Chinese company that is exclusively dedicated to the design of robotic hands. The hands of the Genesis Eno have a movement angle of 22 degrees and look practically the same as a human hand. To control them with skill there is the brain GENEwhich the company says is the first AI brain to give robots “physical manipulation capabilities comparable to those of humans.” GENE allows the robot to interact with its environment freely, unlike other robots that have pre-programmed movements. It is also capable of remembering, can adapt if the environment changes, and is able to schedule multi-step tasks, as if it were a fleshed-out AI agent. The company assures that they plan to begin production of the Genesis Eno at the end of 2026. First it will reach industrial clients, then the service sector (such as hotels or hospitals) and finally to private clients. At the moment They haven’t said anything about the price. Images | Genesis AI In Xataka | This humanoid robot promised to do our housework. For now it’s a $20,000 puppet

This week the bootidae arrive, the slowest and most unpredictable meteor shower that exists

June 23, 2026 by usatoday24

If we think about meteor showers and the summer of the northern hemisphere, possibly the only one that comes to mind is the perseids. Without a doubt, it is the most famous of all, that is indisputable. But it’s not the only one. Right at the beginning of the summer period we can also enjoy the bootidas, a very special meteor shower for being, possibly, the most unpredictable of all. Don’t stop looking at the sky this week. The Booties can be seen crossing the sky between June 22 and July 2, although its peak takes place between June 22 and 30, normally the 27th. That is why it is recommended that this week we look at the sky, especially during Saturday night, when the peak is most likely to occur. And hopefully also an explosion. A variable number of meteors. We usually know how many meteors per hour we will see with a meteor shower. For example, the Perseids usually leave between 50 and 100 meteors per hour. It is quite a spectacle, which still pales in comparison to the December Geminidswhich can reach 120-150 meteors per hour. The bootidae, on the other hand, only give us 1 or 2 meteors every hour. We should be very focused on the sky to be able to see them. However, from time to time they experience outbursts in which a number of meteors comparable to those of the Perseids can be reached. The last of these outbreaks took place in 2004 and it is not known when the next one will be. That’s why it’s such a special occasion. The explanation. When comets and asteroids pass near the Sun, they often leave behind a cloud of debris caused by various reasons, but especially by the sublimation of the ice that they usually have on their surface or their core (in the case of comets). That cloud floats in space, usually in a defined place. Therefore, when the Earth revolves around the Sun, it always encounters these clouds at the same time of year. As it crosses our atmosphere, debris burns, giving rise to small fireballs streaking through the sky. Those are meteors or, as we know them colloquially, shooting stars. If there is a planet near the orbit of a comet or asteroid, can exert a gravitational effect on its debris, preventing it from being distributed homogeneously. That’s what happens with booties. They come from the debris of comet 7P/Pons-Winnecke, strongly influenced by Jupiter. In their case, instead of leaving a homogeneous cloud of debris, these are formed into dense threads, so that the Earth each year encounters a point of different density. Some of those threads are well studied. For example, it is known that the thread that led to outbursts in 1916, 1998 and 2004 could leave another outburst in 2037. However, there may be other unidentified threads that leave outbursts in other years. Maybe this 2026? Other information that makes it special. Another reason why bootida rain is so special is the meteor speed. While the Perseids fly across the sky at 59 km/s and the Geminids do the same at 35 km/s, the Bootids They move at 18 km/s. They are much slower, so if we manage to see them, we will enjoy them much better. We’ll have more time to make a wish! Yes, scientifically it is useless, but we have all caught ourselves trying to do it at some point. How to see them. To see the meteor showers, you basically have to follow the same steps as to see any meteor shower. It is best not to use telescopes or binoculars, since we will not know where to point. The ideal option is Find a place well away from light pollution and fix our eyes on a point in the sky until our eyes get used to the darkness. The radiant of the Bootes is, as its name indicates, the constellation of Bootes. That means that this is the place in the sky where shooting stars seem to be born. However, they can come from any point. The important thing is that: fix your eyes and get your eyes used to it. As for the time, the ideal is to start searching after midnight, at least in latitudes close to the Spanish one, since that will be when they will be seen high enough in the sky. If there is no explosion, there won’t be much to see, but what if there is one and we don’t try to go out and look? Better to be bored than to regret not having tried. Image | Michal Mancewicz (Unsplash) In Xataka | Meteor showers, planetary alignments and lunar phases: all the astronomical events that we have in view

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