underground

Madrid had one of the underground labyrinths without more complex GPS. Google and Waze have tamed it with 1,600 Bluetooth beacons

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We are so accustomed to GPS that, when suddenly disappears, a simple journey can become a headache. It is not that we have lost the ability to interpret the signs of a lifetime, but that the way of moving through the big cities has changed so much that this technology has become indispensable. The M-30 is a good example. Their tunnels form one of the most complex systems in Europe and, for many drivers, entering them is a risk of disorientation. Taking a wrong way and ending kilometers from fate is not a rarity, but an experience shared by both Madrid and visitors. The reason was clear: The GPS signal was easily lost underground and sometimes returned absurd data. Aware of this, the Madrid City Council presented in September 2024 a plan to display electronic beacons with Bluetooth technology. Installation works began in April 2025 And, five months later, The system is already underway. The idea is to continue adding new beacons over time, but the current network already allows assisted navigation to work in the M-30 tunnels. For a road that acts as a real ring ring of the capital, the difference is not less: moving through it should no longer be an act of faith. An aid that comes at the right time Moving through the M-30 not only requires dealing with its tunnel framework: works at critical points such as A-5 or the sales zone, together with the usual congestion, make any waste of time weigh more than ever. Being sure that we are not going to mislead in the middle of the curve or to take the wrong exit is not a whim, it is a way to win minutes and avoid dislikes on a day -to -day basis. ⠀ 1,600 devices have been installed along 48 kilometers of tunnels, with an investment of 141,000 euros. The objective is to reach 2,700 beacons at the end of the year, once the installation is completed in the rest of the underground network. They are low consumption devices that work with batteries, with an autonomy between four and six years, and issue a unidirectional signal without collecting user information. When detecting that signal, the smartphone calculates the position of the driver in real time and keeps navigation activates, even without GPS coverage. The impact on the mobile battery is minimal thanks to the use of Bluetooth Low Energy. A huge impact on daily mobility The M-30 supports the passage of More than half a million vehicles. Solving a problem such as low -ground loss means improving the experience of hundreds of thousands of drivers That depend on this route to get to work time, home or any point in the city. Another key aspect is that beacons do not require additional mobile data or complicated configuration: it is enough to have activated bluetooth and grant permission to the application. The project makes Madrid the European city with the largest network of active beacons and in the second in the world after Sydney. It has been possible thanks to the collaboration between the City Council of Madrid, Madrid Calle 30, Waze, Google and Imalesapi, the company in charge of the installation. The challenge was not minor: The M-30 has a large number of tickets and exitsin addition to especially complex sections, such as the one from the Prague bridge to the Toledo bridge, with two parallel but overlapping tunnels. The Paris Network, with the Tunnels of the Défense and La Péripherique, is also equipped with beacons of this type. And outside Europe we find even better examples: the Lincoln tunnel under the Hudson River in New York, Queens-Midtown under the East River or Hugh L. Carey, which connects Brooklyn with Manhattan. Madrid thus adds to a very small list of cities that have decided to bet on this technology, and does so in one of the most demanding scenarios on the continent. How is it activated on Google Maps and Waze The system already works in the two most used navigation applications, although with nuances. Google Maps: In Android, you have to go to Navigation settings and activate the option Bluetooth tunnel beacons. In iOS, for now, it is not available. Waze: Simply have the bluetooth on and the permits granted. If the user has it deactivated, the app itself will show a notification when approaching a tunnel with beacons so that it can activate it at the time. Images | Google | Madrid City Council In Xataka | Spain fined Ryanair to stop collecting hand luggage. I did not count on Ryanair had a more powerful ally

His response was the largest underground nuclear base on the planet

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Talking about the cold war is talking about espionage, secret bases, Advanced weapons to win the opponent in a potential armed conflict and, above all, the Atomic Arsenal Explosion And constant fear of Nuclear Apocalypse. And this implies talking about Russia and the US as protagonists, leaving us in the inkwell to other actors in the conflict. China was another proper name during the Cold War, getting fully into the nuclear race. And they did it big. With the world’s largest nuclear military plant, the mysterious nuclear military plant 816. Bad crumbs with the USSR. The cold war was a tremendously complicated conflict that was played three bands part of time. The US and the USSR were two of the legs, but China entered Liza when the Sino-Soviet conflict. Simplifying history, the Soviet Union And China competed for being the champions of communism and, at a time of 1969, the Soviet Union even considered bombing China with nuclear bombs, including Beijing. However, United States “intervened“, Turning the conflict and relations with China. The position of both approached the subsequent years, but before that, and with a China smelling that the USSR could threaten with its nuclear arsenal, began to build the Nuclear Military Plant 816. Great Nuclear Wall. Zhou enlaiChinese prime minister at that time, he responded to the Sino-Soviet rupture giving the Output gun to a military base in the Chongqing region that would be much more than a bunker: it would become the Nuclear underground installation most important in the country. The goal? Produce plutonium that could be installed in arms, creating nuclear missiles without Soviet help. The works began in 1966 and in process more than 60,000 soldiers of the popular liberation army participated. The objective of the installation was that he was armored against missile attacks, but also against earthquakes of magnitude 8. In addition, he had a great natural wall around him: the Jinzi mountain and his granite. Colossal. Secretism was a constant when building the complex. This is something common and logical in this type of facilities, reaching the extreme that the workers of the workers did not know what their relatives were working or where. In the official records it is indicated that 76 people died during some works that extended over 17 years, but there are sources They point out that the figure would be much greater. Apart, the nuclear military plant 816 has an area of ​​more than 104,000 m² and is the largest tunnel system excavated by the human being. Its 130 galleries total more than 20 kilometers long over 18 United Artificial Cuevas, has more than 13 levels and the height to the deepest point is almost 80 meters, similar to a 25 -story building. In addition, to go from some sites to others inside the plant, cars that circulated on underground roads could be used. That is … it’s huge The control table The reactor room Reverse. During the years of construction, China made Advances in its nuclear program. Although it has been more recent when they officially reached The 500 headsthe first public nuclear test in the country was in 1964, but the complex of the 816 Pedish served little. The reason? After 17 years building that colossal cavernary system and with the advances at 85%, they decided to cancel it. The changes in international relations and the dimensioning tension of the cold war led to a brake on the project. The reactor was never operational and the program was classified in 1984. In 2002, however, it came to light and we could know all these details, even knowing that part of the plant was recycled to become In a fertilizer factory. Tourists, welcome. But with all that excavated, it would be nonsense to have it closed to lime and song. Something like that must have thought of authorities, since, in 2010, they decided open part of the base to the public. Thanks to this we can see photographs like those that accompany these lines and know How would the conditions of a base destined to manufacture nuclear missiles in China 60 years ago. And, in addition to serving as a museum, it is a memorial for the human sacrifices of those who participated in the project, they were official … or those that do not appear in the records. Images | 重庆轨交 18, Iswzo, Lastrik, Pierre Marshall In Xataka | Satellite images leave no doubt: the US has restored the base of the Pacific that launched atomic bombardment over Japan

The great AI companies have declared a underground war to a pillar of education: human teachers

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We would all like to have a Keating Professor In our lives. One that made us get on the desks to see things from a different perspective and that he would teach us that the most important lesson he has for us is summarized in the words “Carpe Diem”. There are very few who approach that image, but all of them, bad or good, threatens them the same future as Other professions: Be replaced by an AI. Professor 24/7. The narrative of several AI companies is clear: the human teacher is a bottleneck. Each of them serves many students, their knowledge is limited and their finite availability. The AI, they assure those companies, proposes a remarkable alternative. Personalized professors 24/7 with infinite patience and access to all the knowledge of the world. There is a clear problem: that message devalues ​​the teacher’s function as a guide, mentor and catalyst for curiosity and reduces it to a mere transmitter of information. Continuous evaluations. Another of the pillars of the educational system – and one of the tasks that most consumes the teaching staff – is Student evaluation. The AI ​​promises to correct efficiently, massively and immediately, releasing the teacher for other tasks. But again in human evaluation there is much more than a mere correction of errors. The effort, the reasoning process, creativity, originality or even the personal context of the student are evaluated. Biases also pose a clear threat to these evaluations, in addition to promoting a model Based on the correct answer and not in the reflexive process. My school is OpenAi. So far schools, universities and other academic institutions are the guarantors of a theoretically coherent and quality curriculum. The approach of the companies of AI would be that of Become them In “Guardians of knowledge” deciding what is important to learn and how. The risk: lead to a fragmented education and dictated by the interests of the market, eroding the role of education as a pillar of society. Threat to humanities. The AI ​​also raises the irrelevance of memorization – it can already respond to all known knowledge – and bet on skills such as “Prompt Engineering“(know how to ask things to AI) or Technical subjects (Stem). That suggests a clear impact to matters of humanities and critical thinking that we do not apply directly. Fields such as philosophy, art or social skills, hardly quantifiable, would go to the background. The objective would not be as much to train and prepare workers for the technology industry. Goodbye to social investment. Companies that bet on that model have a clear objective: climb and be profitable. AI technology applied to education promises a lot of savings (less physical infrastructure, less teachers) and a highly scalable business. But also imposes a worrying revolution to one of the pillars of society. Bill Gates believes in the future of the teachers of AI. Among the experts who outline that idea is the figure of Bill Gates, co -founder of Microsoft. His commitment to the teachers of AI It was early: Chatgpt had been in the market for just five months when he said that “AIs will reach that capacity, to be as good tutors as any human being.” For him, this technology should also be a “leveling” for society. According to Gates “having access to a tutor is too expensive for most students, especially if that tutor adapts and remembers everything you have done and review your work.” Openai and Khan Academy have the same vision. A year ago the presentation of GPT-4O surprised among other things for that capacity offered by this AI model to talk directly to him. One of the OpenAI demos, carried out in collaboration with Khan Academyhe showed Sal Khan, his founder, contemplating how his son used the model to receive a geometry lesson. The interaction was impeccable and pointed to a future full of teachers of ia locked in our tablet, our mobile or our computer. Khan is of course interested, but it doesn’t hurt see your ted talk on “how AI could save (not destroy) education.” Schools converted into nurseries. Luis von ahn, Founder of Duolingothe poular application to learn languages, it also takes time turning towards the AI. A few days ago he participated in the podcast No priorsand there he commented how although there are very good teachers, “there are not many.” For him, education will change radically because “it is much more scalable to teach with which with teachers.” Even so pointed out That does not mean that teachers disappear: “You will continue to need people who take care of students”, but focused on a new role: “I don’t think schools disappear, because you need nurseries.” Image | Buena Vista Pictures In Xataka | Towards the end of duties: how chatgpt has been inserted in the center of the great debate on education

We are increasingly sure that Mars hides a lot of water underground. The last track has been given to us an earthquake

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There was a remote time in which Mars, today desert, had rivers and seas. We know some of the remnants that have remained, such as the Jezero river delta that explores the Rover Perseverance But that water may have been more than mere traces. A lot more. New tests. A geological study conducted thanks to the propagation of seismic waves on the red planet has obtained new evidence of the existence of water on Mars. Although the study itself does not imply a definitive test, it joins the list of studies that indicate that the neighboring planet is not as dry as it seems. A wet past. The Martian oceans had a short duration In geological terms. According to estimates, these would have disappeared between 4,100 and 3,000 million years ago (our solar system has about 4.6 billion years), in periods called Noeic and Hesperic. The lower gravitational attraction and the lack of a magnetic field that protect the Martian seas of the solar wind left Mars without superficial oceans. But from that water there was more than a handful of marks in the geography of the red planet: the water in solid state lasts ice -shaped either Integrated into its minerals. The enigma of the missing water. Some researchers detected a problem, and it is the difficulty that the sum of evaporated water, frozen or embedded in minerals could represent the total water that was once on Mars, they explain In an article for The conversation Hrvoje Tkalčić and Weijia Sun, co -authors of the recent geological study on water on Mars. Insight, to the rescue. In his recent study, the team took advantage of the data captured by the seismometer that the probe Insight He kept operating on Mars during his activity. During this period, Mars suffered an earthquake and received the impact of several meteorites, events whose seismic waves were recorded by the instrument aboard the now deceased probe. Studying the spread of these leads, the team identified an “anomaly” in a layer of the Martian subsoil located between 5.4 and 8 kilometers under the surface. It is a “low speed layer” that, according to the hypothesis proposed by the equipment would correspond to a layer of porous rock stuffed with water, “like a saturated sponge” or “something similar to the aquifers of the earth.” A lot of water. This layer could hide a significant amount of water, enough to house the water that dfalta in the accounts of the experts. “We have calculated that the ‘aquífera’ in Mars could house enough water to cover the planet in a global ocean of a depth of between 520 and 780 m, several times more water that keeps the Antarctic ice layer.” The details of the study will be published In an article In the magazine National Science Reviewbut for now we have to settle for a draft. Tests accumulate. This It is not the first time that we get evidence of the existence of vast amounts of water in the Martian subsoil. A little over a year agoa study conducted from the data of the European probe Mars Express reached a similar conclusion, that of the existence of huge amounts of water, enough to create an ocean of several hundred meters deep, in the Martian subsoil. In Xataka | We had little doubt that Mars was a habitable planet. The Curiosity Rover has just cleared them Image | POT/GSFC

hide your tanks and artillery underground

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In the war that is fought in Ukraine after the invasion of Russia we have seen a large number of unpublished tactics in the front. For example, drones that are precisely looking for They catch themeither unmanned boats capable of knocking fighters. We have also seen using “tricks” from the First World War, such as The optical illusion or the use of shotguns of double cannon. However, what had not been seen so far was literally burying a combat tank. The buzz of a drone. The story comes, in reality, months ago. In the dense forests that surround toletsk, a flame city east of Ukraine, the sound of the war had changed the bell in October: it was no longer only the rumble of the artillery that defined the battlefield, but the constant buzzing of the drones that furrowed the heavens in search of objectives. In Donetsk, the soldiers of the 28th Mechanized Brigade separate awaited instructions with their Modernized T-64although they are no longer the imposing protagonists that used to be. The era of the dominant tank has given way to a new stage: the of the cautious tankforced to adapt to a war dominated by electronic eyes and miniature air attacks. The loss of invulnerability. That scene has been repeated in many other stages of the war in Ukraine. The T-64 is the best example, since it was at the time a symbol of invincible power: that which was said that when the engine felt under his feet, the illusion that nothing could touch him. However, that feeling It has vanished. What was previously a strategic advantage today has become exposure to danger. Tanks, whether Soviet or modern models M1A1 Abrams Americans are being removed from the front, not due to lack of power, but for their vulnerability in front of FPV drones low cost, which for just 500 dollars can destroy machines valued in millions. War has become a technological asymmetries equation where small colossal. Invisible air war. Today is already a war reality: in the extensive line of the Ukrainian front, of more than 1,100 kilometers, the modern war is no longer freed on the ground, but also also in the airwhere those swarms of small explosive drones fly without rest on a lethal flight of Surveillance and destruction. Every month, both the Ukrainian forces and the Russians throw around Two million FPV dronestiny distance guided machines capable of transporting enough explosive loads to destroy vehicles or end a life. Their size, speed and maneuvering capacity make them relentless hunters of mobile or static objectives, especially artillery pieces, tanks and fortified positions. These aerial threats, no doubt, have completely transformed the strategy on the front, displacing the combat from the surface Towards the subsoil in what is already emerging as an era of those cautious armored armored ones that we commented. A Ukrainian tank emerging from Earth The underground artillery is born. Given this scenario, more and more Ukrainian artillery units have begun to excavate deep burrows In the field, hiding not only its crews but also its bulky artillery pieces. There are examples of Widespread videos that show a Ukrainian battery operating a 2S1 GVOZDIKAa self -propelled howbow, hosted underground in An excavated shelter With heavy machinery. The entrance is covered by trunks and a thick network that aims to intercept enemy drones. The depth of the position is such that even the vehicle has a hard time emerging to shoot. There are also Official photographs of the 36th Ukrainian Marine Infantry Regiment that reveal that these underground positions are not isolated cases, but a trend that extends along the front, especially in exposed areas such as the border with the Russian region of Kursk. Trinchera 2.0. The evolution of the conflict has returned to the modern soldier to a form of buried lifebut this time with 21st century technology. The constant threat from heaven has forced a complete redesign of deployment and concealment tactics. From that prism, visual camouflage is no longer enough: layers of land, reinforced structures and one Logistics capacity that allows to bury heavy machinery safely. They counted in Forbes That when they do not shoot, vehicles must remain hidden underground, ready to emerge only the necessary time to execute a fire mission before disappearing again under soil protection. This logic of movement translates into a stealthy, methodical and essentially defensive form, away from the traditional dynamism that characterized the armored ones. Drones and tactical response. While FPV drones They are mortalThey are not invulnerable. Radio controlled can be neutralized by Electronic interferencewhile guided by fiber optic cable They can betray the operator’s position if the cable is tracked. Even so, its proliferation has reached such magnitude that the land no longer offers sufficient protection without intensive mechanical intervention. Networks, armor, traps, improvised structures … in the war in Ukraine nothing seems sufficient in the face of the constant surveillance of those thousands of eyes Flying Hence the earth, thick and silent, offer a truly effective defense. This also explains why so many Ukrainian units have started Collection campaigns To acquire excavators, understanding that their survival no longer depends solely on weapons, but on access to civil machinery capable of opening a refuge under the surface. Adaptation to urgency. Thus, what began as a improvised reaction Given the increase in unmanned air attacks, it has established itself as a New tactical pattern. In a technologically saturated war, where visibility means vulnerability and mobility implies risk, hiding has become a strategy. Artillery, once a symbol of power and visibility on the battlefield, is now buried as a swag endangered. A strange turn, but perhaps inevitable, in a conflict where artificial intelligencethe Technological miniaturization and Asymmetric war They have relegated the human being and their machinery to seek in the subsoil a way of persisting. Image | Ukrainian Defense Ministry, 36th Marine Brigade In Xataka | The last tactic of Ukraine is a drone that seeks to catch him. When Russia opens … Read more

In the Norwegian cold war he devised a plan underground to detain the Soviet. Invasion to Ukraine has reactivated it

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The story took place at some point in The cold war. The plan started from a premise: how to contain a more than likely Soviet naval attack by one of the key maritime corridors in the Arctic Ocean? Thus the Term Bear Gap and a plan that germinated in a series of underground constructions with which Norway would put its grain of sand. Today, and after the Russian invasion in Ukraine, these secret constructions have reactivated. The origin of the bases. As we said, during the Cold War, the strategic location of Norway, close to the then Soviet Union, carried out the country to carry out a plan: build approximately 3,000 underground facilities destined to protect aircraft, submarines and troops both Norwegians and allies before a possible attack by Moscowand thus placate the offensive. Many of these structures, camouflaged in mountains and fjords, remained in secret even for the local population. Among them, the Bardufoss Air Base and the Naval Base of Olavsvernauthentic fortified complexes excavated in rock which had hangars, command centers, maintenance areas, fuel storage and underground exits designed to resist nuclear attacks. The reactivation. As I counted The BBC weekenddecades after the collapse of the USSR, Norway has decided to reactivate Bardufoss and Olavsvern due to the deterioration of regional security after the Russian invasion of Ukraine and the increased activity Russian military in the Arctic since the mid -2000s. The Bardufoss Air Base, opened in 1938 and Used by Germans During World War II to protect TIRPITZ battleshipwas adapted in the postwar to protect combat planes against a possible Soviet offensive. Today, modernized and equipped to accommodate F-35 Lightning IIits main function is guarantee survival of these aircraft before threats such as kamikaze drones, whose effectiveness It has been tested In the Ukrainian conflict. Unlike improvised solutions in battlefields, such as networks or tire covers, Bardufoss offers real protection thanks to their hardened shelters under the mountain. One of the underground bases used in the past by the United States Olavsvern and its importance. It We explained recently. The Naval Base of Olavsvern, built from the 50s With strong financial support from NATO, it was conceived to control The so -called Bear Gapa vital maritime step between the Norwegian coast, the island of the bear and Svalbard, where they traditionally travel Russian submarines towards the Atlantic. Olavsvern has an underground port with direct exit to the sea, dry dock, control center and large logistics facilities, protected by thick layers of Gabbro and a monumental anti-explosion door. Although Its closure in 2009 and its subsequent private sale (in A controversial operation that even allowed access to Russian vessels), in 2020 the company Wilnor Governmental Services, linked to the Norwegian Defense Ministry, He regained his control And he began his rehabilitation. Currently, the base has once again received active military presence and, As we countthe United States Navy has shown great interest in using it for its nuclear submarines. Bear Gap. It is of a strategic term used to describe that maritime corridor between the coast of Norway, the Bear Island (Bear Island) and the Svalbard archipelago, in the Arctic Ocean. The area is considered a key step or natural strangulation (Chokepoint) where Russian submarines and warships that seek to leave from the base of the fleet of northern Russia, located on the Kola Peninsula, towards the North Atlantic. During the cold war and even today, NATO considers this corridor a Critical point to monitordetect and, if necessary, block Russian naval forces, since it is one of the most accessible routes that connects the Barents Sea with the Atlantic. Hence, bases such as Olavsvern and other Norwegian facilities in the Arctic have so much strategic importance. Controlling or monitoring this step is essential to prevent Russian submarines with strategic (nuclear or conventional) missiles can operate freely in the Atlantic. The Arctic Resurgence. Far from being an isolated phenomenon, the reactivation of these bases is part of a broader trend. Russia He has reopened nearly 50 military facilities Arctic of the Soviet era, while countries like Sweden They have reactivated its underground naval base of Muskö and China has built New underground complexes For submarines and command centers. They will, meanwhile, too has followed this path with his “Missile City” In the Persian Gulf. Norway, aware of the intensification of Russian military exercises in the Arctic and their renewed interest in exploiting natural resources in the region, has resumed its defensive logic of dispersion and protection undergroundnot only for its strength, but also as an essential point of support for NATO. Utility and limitations of bunkers. It is the last of the legs to be treated. Despite their apparent strategic value, experts warn that Reactivate old bunkers presents Important challenges. Many have been dismantled, flooded or present degraded structures, making their modernization expensive and complex. In addition, the truth is that facilities such as Olavsvern have already been identified by satellites as a potential objective for decades, reducing any type of surprise factor. Thus, analysts also agree that underground facilities are still One of the best defenses Faced with modern aerial threats, including guided missiles, provided that their vulnerabilities are correctly updated. Norway seems to bet on resilience and deterrence, accepting that, given strategic uncertainty, underground security remains a prudent and effective option, especially in a region where Russia seems determined to project all its can. Image | Rawpixel, Marine In Xataka | The US plan B in the Arctic is an underwater cave in Norway. The only drawback is that it is not for sale In Xataka | Trump wants to keep Greenland. There are two countries for which it would be a serious problem: China and Russia

We have discovered the largest underground thermal lake in the world. It is at the bottom of a more than 100 meters aser in Albania

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Albania has just been crowned on the world geological map. And big. There, on the border with Greece, a tens of meters deep, an expedition has identified the largest underground thermal lake on the planet. His name, Neuron. Its figures: more than 183 m long, 42 wide and sufficient water to fill A few Olympic pools. The finding confirms the scope of a discovery that dates back several years ago but whose relevance has only been confirmed now, with the help of a Lidar scanner. Its history is as curious as its size. “A steam column”. To understand the scope of the discovery you have to go back a few years ago, at 2021 and 2002, when a team of Czech scientists launched Vromoner, in southern Albania, near the border with Greece. The area resulted especially interesting For geologists because for years the convulsive political context of Balkans had hindered that scientists could thoroughly examine it. There the experts found a vast underground system of thermal sources thanks to a curious track: a steam stream. “From the high vapor column that rose from the limestone massif we managed to locate a chasm of more than one hundred meters deep,” Marek Audy tellsHead of the expedition. They called her atmos. When exploring it, they took an even greater surprise (literally): they found an intense thermal activity and a “great lake.” How large and broad it was, however, it became an unknown that then, for technical issues, they could not clarify. A (huge) suspicion. Which I was clear Audy team was that it had found something big, huge. And again both words can be understood in their most literal sense. The team suspected that the water extension that had been located in Albania was the largest underground thermal lake in the world, at least among those known today. Hence, later the researchers returned to the Sima in a new expedition provided with a reinforced technical arsenal. Thanks to the support of the Neuron Foundation, which contributed funds, the geologists achieved a special lidar scanner and the software necessary to measure the area. The objective of the researchers –The Neuron Foundation reported Before the expedition left – it was to make a map, a 3D model of the underground cave and the lake and even collect samples of animals from the banks. The result of that incursion has been waiting, but it was worth it: today those responsible presume having identified the largest underground thermal lake in the world. A “unique” lake. In a wink to the foundation that supported the project to the lake, Neuron has been baptized. What surprises however is not its name, but its size: 138.3 meters in length by 42 wide with a circle of 345 m. Inside it hosts around 8,335 m3 of thermal mineral water and those who have had the opportunity to visit it highlight the show of its dome, three times greater than that of the main room of the Prague National Theater. “The phenomenon has been subject to a thorough hydrogeological study to confirm its singularity,” The Foundation stands outwhich emphasizes that it is a “unique” lake. And how did they measure it? The team did not start from scratch. Richard Bouda, photographer and member of the expedition, Explain to Euronews that during the first visit they had already prepared a “basic map” with the resources they had. When they returned they did it, however, with a mobile lidar scanner and the system Geoslam which allowed them to precisely probe the cave and the lake. Not just that. They also traced a detailed map of Atmos, including other caves, such as sulfur. “We believe that this discovery will help protect the area and to better understand hydrological flows. Until now, nobody knew precisely how these groundwater connect to the surface,” Bouda comments. The team also trusts that the finding has an impact on the hydrological and geological studies of the region. Images | Neuron 1 and 2 In Xataka | A cave in France hid a strange rock formation. Some researchers believe that it could be a 3D map

The City Council plan after underground A-5

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Madrid and jams They are practically synonyms. Applications like Google Maps either Waze They show us real -time information about traffic, although they have obvious limitations when showing real -time deviations or traffic cameras. The Madrid City Council has launched a web application which allows to consult in real time information about traffic, without the need for installation. It is accessible from the computer, PC, tablet or any device with an installed browser. The application interface is enough (and little modernized, everything is said). Currently, in its previous phase, it is completely focused on the A5. This will allow users of the southern zone to know in real time the situation of this busy area. The visualizer allows to show cartographic information both in 2D and 3D, with the main addition of traffic cameras, something that is not possible to consult in third party applications discharged from apps. Real -time information about the city cameras installed by the DGT. The application is launched to reinforce the information to the citizen after the incidents caused by the works of the Soterramiento of the A5, as well as the construction of the future Paseo Verde del Southwest. “This application also has a series of functionalities to give all the necessary information to the user, including information on real -time traffic and access to DGT traffic cameras in the area affected by the works, the Main recommended alternative itineraries graphically. Being a website, it can be consulted quickly from the mobile by direct access. The interface is specially designed to function in this type of devices, and although it is not especially fast, it is a practical tool. Image | Moockups Studio and Xataka In Xataka | New York lived a hell of stuck cars, collapsed streets and unpunctual buses. They have solved it in two weeks

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