Taking spectacular photographs of the Perseids seems impossible. NASA has a guide to demonstrate otherwise

The Perseids are already here and, although there are still a few days to reach their peak of activity, it is convenient to keep in mind some clues and tricks if our intention is to capture them in a photograph. Because as more than one will have proven, this is not always easy. AND Who better than NASA to point to any of these tricks. The first step: plan. If we want to get a good image of this rain of stars, the first thing is to think where and when. The Perseids or Tears of San Lorenzo can be seen for several weeks of summer, approximately between June 17 and August 24, and reach their peak of activity around August 11 and 12. Where and when it is also important when it comes to circumventing the great enemy of astrophotography: light pollution. First, it is convenient Avoid full moon And the phases in which it reflects the most light, since, although we do not perceive this light, it reduces the contrast that our eyes require to see the fleeting stars. It is also important flee from light pollution that generate the lights of cities and other settlements, so perhaps we should plan a trip to the field if we want to see these stars. Finally, we must also know where to look. Perseids owe their name that seem to radiate The constellation of Perseus. Knowing how to locating this constellation in the sky is very useful when restricting the angle to which to aim the objectives of our cameras and increase the probability of capturing some of these flashes. Second step: the team. A tripod can be helpful. Photography will require a long exposure. Maybe they are just a few seconds, but our pulse or any other involuntary movement could spoil a perfect shot. If we do not have a tripod we may resort to a “homemade” solution, such as supporting our camera on some rocks, but that will subtract maneuvering capacity. It can also be useful pertrech In order not to have the chamber trigger and thus avoid additional vibrations, but we can also dodge this requirement with the camera timer. Regarding the lens, NASA’s recommendation is in angular. Since we do not know when and where the next flash will happen, it will be best to cover a lot to increase our chances of success. Third step: Prepare. Once in position, we can start looking The constellation of Perseus. Orient our camera towards it will increase the chances of capturing the flashes of this rain of stars. The approach, best manual. The reason is that cameras self -effect systems can be lost in night darkness. Since we will not have to change the focal point, this does not imply any problem once we have taken the ideal approach. We will have, of course, to walk with an eye: sometimes focusing on infinity is not the best option, so it is a good idea to try small adjustments until you find the ideal approach. There is still a detail. We had said that capturing a rain of stars requires long exhibitions. Calculate how long can also require adjustments, but NASA also has a trick to facilitate work: Rule 500. It is about dividing 500 by the focal distance of the lens, and using the figure as time, in seconds, that our open shutter will remain. This value represents the maximum time that we can maintain the exposure before the terrestrial rotation makes the background stars begin to spread. If we have a 20 mm lens, we will have that 500/20 = 25 seconds of maximum. Experiment, enjoy. Rule 500 can be a good start, but we will still have to adjust our ISO and opening values, which will also allow us to play with shorter exhibitions. We can make small changes and verify how each one affects the quality of the image or its aesthetics. He last advice that NASA It has for those who are encouraged to photograph the persistes (or any other rain of stars) is simple: enjoy. These astronomical events offer us an opportunity to see the night sky in a different way, in advance generated by the unexpected flashes that cross the night sky on some summer nights. In Xataka | What are they and how exactly the Perseids are formed, the most fascinating astronomical phenomenon that we can see today Image | Fatih Turan

One Piece and Lego® join their paths with spectacular sets: they are already available

LEGO® has sets for all tastes. The Danish brand is gradually adding news to its catalog, but few usually make as much noise and the one that has released today, July 1. We refer to the new One Piece setsone of the best known sleeves and anime that, in this case, are based on the live action that can be seen in Netflix. It is a great opportunity for Luffy and Company lovers, since they can now enjoy both riding and exhibiting these sets at home. Are the following: LEGO® Going Merrythe well -known and dear pirate ship of Luffy’s crew, by 129.99 euros. LEGO® Cabaña del Pueblo Molinoa smaller set that includes Luffy and Shanks, for 29.99 euros. LEGO® Buggy Circus Tent the clownwith this character as maximum protagonist, for 49.99 euros. LEGO® Battle in Arlong Parkone of the most important clashes of the principle of Luffy’s adventure, by 79.99 euros. LEGO® Baratie floating restaurantthe biggest set of this collaboration with One Piece, for 299.99 euros. Lego® Going Merry The first set we have in hand is the Going Merry, a pirate ship that does not lack detail, since it includes even the kitchen. Includes minifigures of several characters and four posters of ‘are sought’ among which are Buggy, Mihawk or Luffy himself. It comes out by 129.99 euros. * Some price may have changed from the last review LEGO® Cabaña del Pueblo Molino The most economical set of this collaboration is with this cabin of Pueblo Molino, the village from which Luffy’s adventure starts. Despite being small, it is composed of 299 pieces, it also includes several minifigures (including Shanks) and a ‘Search’ poster. Costs 29.99 euros. Cabaña del Pueblo Molino * Some price may have changed from the last review LEGO® Buggy Circus Tent the clown We have a very funny set with this buggy tent, one of the first enemies facing Luffy. In it there are three gadgets of which the protagonists of this adventure will have to escape. 573 pieces make up and leave for 49.99 euros. Buggy Circus Tent the clown * Some price may have changed from the last review LEGO® Battle in Arlong Park This set is starring the pagoda where Luffy and Arlong fight, a fight that fans of this eiichiro manga ode we remember with love. Luffy’s arms can be stretched and, of course, we can destroy the page as in combat. Costs 79.99 euros. * Some price may have changed from the last review LEGO® Baratie floating restaurant We close with the biggest set that includes this collaboration of One Piece. This is the Baratie, the restaurant ship where Sanji appears for the first time. It includes 10 different minifigures and is loaded with details thanks to the more than 3,400 pieces it includes. Costs 299.99 euros. Baratie floating restaurant * Some price may have changed from the last review Some of the links of this article are affiliated and can report a benefit to Xataka. In case of non -availability, offers may vary. Images | LEGO® In Xataka | Your favorite series, comics and movies also in Lego: 15 ideal construction kits to mount yourself or give away In Xataka | Lego constructions to another level: the Technic series has the models with which any collector would dream

A folding mobile at outlet price. This is the new and spectacular offer in the honor Magic V2

More and more folding mobiles that come out with a more affordable official price, although obviously we continue to find models with prices that even exceed the a whopping of the 2,000 euros. Here, in this field, honor is a very interesting brand and, although its folding mobiles are usually expensive, from time to time we find them very cheap. Right now, the perfect example is found in the Magic V2 Honora mobile that has dropped from its official price of 1,999 euros to the 819 euros. We will find it at this price in PowerPlanet during your campaign Power Days. If you prefer in another color, it is also in black by others 819 euros. * Some price may have changed from the last review A half -price folding mobile He Magic V2 Honor It is a very particular mobile, since it has one of the thinnest designs we have seen in folding mobiles. Regarding their screens, we find a External panel of 6.43 inches which offers a FullHD+resolution, refresh rate of 1 to 120 Hz and compatibility with HDR10+. We also find a 7.92 inches folding screen with 120 Hz refreshment and HDR10+compatibility. And if we talk about its power, the Magic V2 honor mounts the processor Snapdragon 8 Gen 2. It is not the most powerful, but it does offer excellent performance in virtually any scenario of use. To this we must add that, in this case, with 16 GB of RAM and 512 GB of internal storage. Regarding the cameras, the folding mobile of honor comes with Two front cameras (an internal and another 16 MP), while we find a 50 MP main sensor, a large angle of 50 MP and a 20 MP telephoto. You may also interest you Xiaomi Mix Flip – 12+512GB smartphone, Leica Summilux, Snapdragon 8 Gen 3, 4.01 “outdoor screen of 6.86” ​​120Hz, Hypercharge 67W, charger included, black (ES version) * Some price may have changed from the last review Samsung Galaxy Z fold6 256 GB + Loader – Mobile phone with AI, Free Android Smartphone, 50 MP camera, large screen, long -term battery, dark blue (Spanish version) * Some price may have changed from the last review Some of the links of this article are affiliated and can report a benefit to Xataka. In case of non -availability, offers may vary. Images | Ricardo AguilarHonor In Xataka | The best mobiles (2025), we have tried them and here are their analysis In Xataka | The best price quality price (2025). Your analysis and videos are here

Replacing workers with AI sounded spectacular. There are already companies backward

That an AI takes away our work is A fear That is being realized. More and more companies that bet on replacing human employees with automated processes with AI. At the same time, the potential that the AI agents It seems almost unlimited. The reality is much more complex and there are already some companies that have had to give reverse in their plans. Yes, but to supervise her humans. There are many companies that have begun to draw a plan to replace their employees with AI, especially in the sector of the customer service. However, according to a survey of Gartner, 50% of companies are abandoning this path due to the challenges that the transition to a service managed only by AI is assuming. 95% of the executives surveyed claimed that they would bet on a hybrid approach combining AI and Human agents. In the words of Kathy Ross, director of the Gartner customer service: “IA offers significant potential to transform customer service, but it is not the panacea. The human touch remains irreplaceable in many interactions.” The Klarna case. Perhaps the most popular case of a company that has regretted betting on the AI ​​is that of Klarna. In February 2024, his CEO presumed that an AI was doing the work of the 700 employees who had just fired and also assured that he was receiving the same score from the clients. A year later, the quality of service offered by AI received many criticisms and had to back to hire human labor Ensure that customers can always talk to a human agent. Not so quickly. Although currently the agents of AI are not so reliable As Altman promisedit does not guarantee that they will not improve in the future. In addition, there are cases of other companies to replace humans for AI has gone well. Like the CEO of this Indian startup that He fired 90% of the template And a year later he states that it has been A success. And it is not the only one. Duolingo, for example, fired 10% of its translators to replace them with an AI. Other large companies such as UPS and Cisco They have followed similar paths. The case of IBM It is particular, since, although it has opted for AI, it has also had to hire more workers precisely to manage that AI. IA agents. With the generative AI in decelerationsince the end of last year there is another concept that has gained relevance, that of the AI agents. While chatbots can only attend one request at the same time, an AI agent is able to perform more complex tasks. For example, you could organize the holidays only to mention the dates and destiny. The promise of autonomy, the ability to handle several tasks at the same time and make decisions make the AI ​​agents A threat to many jobs. Unreliable. We can all make mistakes and in this it seems that AI agents are very human. The problem is that if an AF agent makes an error, he continues to repeat in successive tasks, making the error increasing And the final result is also wrong. We have also seen other uses of AI tools at work that have not fully went well, such as disastrous work interviews conducted with AI. A revealing experiment. A experiment carried out by researchers from the Carnegie Mellon University He suggested that they are still very green. They created a fictitious software company whose employees were AI agents. They used Google, OpenAi, Anthropic and Meta models, to which they assigned roles such as finance, administration or software engineering. The result was disastrous: they only managed to complete 24% of the tasks assigned to them. AI and labor market. The impact of AI on the labor market is undeniable. According to the last World Economic Forum Reportit is expected that by 2030 92 million jobs will be destroyed due to AI automation. But there is another face of the currency. At the same time, they will be created 170 million new positions And the AI ​​will be one of the job creation engines, something we have already seen with Salesforce’s case. Cover image | Pixabay In Xataka | The workers have stopped fear of AI as a machine to destroy jobs: software engineers do not think the same

The new offer of Google Pixel 9a seems spectacular. Includes a smart watch clock

More and more brands are encouraged to launch launch packs when they premiere a new mobile. And many times these packs are even at the same official price as the phone. We usually see it a lot in the Xiaomi brand, but now we have also seen it in the new Google Pixel 9a. For the official mobile price you can take a Pixel Watch 2 as a gift, which is valued at approximately 199 euros. In addition, the pack is available in its two configurations: Google Pixel 9a (128 GB) + Pixel watch 2 per 549 euros. Google Pixel 9a (256 GB) + Pixel watch 2 per 649 euros. Google Pixel 9A (128 GB) + Pixel Watch 2 (pack only at Amazon) * Some price may have changed from the last review A mid -range smartphone that has a lot to say He Google Pixel 9a It is a mid -range mobile that has been launched at a very interesting price. It is ideal for those looking for a compact phone, since Its screen is 6.3 inches (Poled). In addition, it has a very complete technical record, highlighting in this section its resolution FullHD+, its 120 Hz refreshment rate and its maximum brightness of up to 2,700 nits. Regarding its processor, in this case the Google Pixel 9a mounts the Google Tensioner G4 and is accompanied by 8 GB of RAM. As expected, you have IP68 certification And its software will receive updates for seven years, an addition that we see more and more frequently, both in the Google brand and in others like Samsung. If there is something in which the Google Pixel 9A stands out, in addition to the aforementioned, it is in its photographic section. Not only do we find the Google app to take photographs and video, but also offer good experience at a general level. And this is thanks to its cameras: on the front it comes with a 13 MP camera and by the rear it module a module that consists of a main 48 MP sensor and a wide angle sensor of 13 MP. You may also interest you USB -C loader of Google 45 W – fast -loading pixel phone charger – compatible with Google products and other USB -C® – snow devices * Some price may have changed from the last review New’C 3 pieces, screening screen for google pixel 9a, tempered crystal antiarañazos, antihuellas, without bubbles, hardness 9h, 0.33 mm ultra transparent, ultra resistant * Some price may have changed from the last review Some of the links of this article are affiliated and can report a benefit to Xataka. In case of non -availability, offers may vary. Images | Álvaro García M.Google In Xataka | The best mobiles, we have tried them and here are their analysis In Xataka | The best price quality price (2025). Your analysis and videos are here

Europe has finished its spectacular cryogenic plant

The cover photography of this article was taken just a month ago in the vicinity of ITER (International Thermonuclear Experctor reactor), The experimental reactor of nuclear fusion that an international consortium led by Europe is building in the French town of Cadarache. What we see in this image is A cryogenization plantand it is a fundamental installation to bring this very complex machine to fruition. It is paradoxical that Iter needs an extreme cooling plant. The plasma confined in your vacuum camera which will contain the deuterium and tritium nuclei that will intervene in the fusion reaction will reach a temperature of at least 150 million degrees Celsius, so a priori may seem strange that an installation is expressly designed to generate an extreme cold. But it is not. It has all the meaning of the world if we keep in mind that superconductor magnets, Creobombs and thermal shields need to reach a temperature of up to -269 degrees Celsius. Iter’s cryogenic plant is an engineering prodigy The superconductor magnets placed on the outside of the vacuum chamber of this nuclear fusion reactor have the responsibility of generating the magnetic field necessary to confine plasma inside. They are also responsible for controlling and stabilizing it. These magnets weigh 10,000 tons and are manufactured in an alloy of niobio and tin, or niobio and titanium, which acquires the superconductivity when cools with a supercritical helium until reaching a temperature of -269 ºC. Superconductor magnets acquire superconductivity when they reach a temperature of -269 ºC This requirement justifies the need to put a powerful cooling system like the one that has devised Europe for Iter. In the construction of this experimental nuclear fusion reactor, the US, Russia, China, India, South Korea, Japan and the United Kingdom are also involved, but the Cryogenization Plant has been commissioned by Fusion for Energy (F4E), the organization of the European Union that coordinates Europe’s contribution to Iter developmentthe French company Air Liquide and technicians integrated in the structure of Iter. In this photograph we can see the nitrogen compressors installed in the Iter cryogenic plant. This extreme refrigeration installation will be responsible for supplying liquid helium to 4.5 Kelvin (-269 ° C) to superconductor magnets and criobombs, and also gaseous helium at 80 Kelvin (-193 ºC) to thermal shields. Creobombs are empty ultraalt devices that are responsible for eliminating gases inside the vacuum chamber. In order to do so, they must work at an extremely low temperature. And, on the other hand, the thermal shields are responsible for protecting some critical elements of the reactor, such as superconductor magnets, the heat that emits the confined plasma inside the vacuum chamber. Iter’s cryogenic plant has an area similar to that of a football field (just over 7,100 m²) and contains several 26 -meter high storage tanks. These figures help us intuit how enormous this critical installation is. As we just checked, Without it, nuclear fusion would be absolutely impossible. This Grigory Kouzmenko statementF4E manager, invites us to tie Iter’s future with a reasonable optimism: “We have entered the most exciting phase of the project, in which all the efforts of previous years finally are specified and we can benefit from the collaboration based on the confidence between all the parties.” Images | Fusion for Energy More information | Fusion for Energy In Xataka | From today Spain has the key to nuclear fusion: Granada’s particle accelerator is already a reality

The best of a mobile with a spectacular camera and the parts that still need to polish

It is not just another high -end phone. He Xiaomi 15 Ultra arrives with a clear intention: to position yourself as a referent in mobile photography. You just have to see its cameras module, an inch sensor and its technical configuration to understand that here is seriously played. And, when a mobile promises, we usually submit to demanding evidence, Like this new 24/7 on the Xataka YouTube channel. “5 days have passed since I am using this phone and I have not stopped taking photos and videos with him. And … wow. The results in automatic are hallucinating me.” That is the first impression of our partner Mario Arroyo, who has incorporated the terminal in his day to day. But, is it still dazzling after so many days? What is left of the ‘Wow’ effect after several weeks? That is what we will try to put on the table. One of the most powerful video points is how the camera yields beyond the specifications. Because yes, it has impressive data: a 50 MP main sensor, an ultra wide angle of 50 MP, a 50 MP teleobjective and a 200 MP super-telefoto with optical zoom. All this supported for generous focal distances, in one of the most versatile systems we have seen. But the important thing is how it pays in real life. The protagonist of 24/7 stops in key aspects that make a difference: the Automatic approachfor example, describes it as “very fast framing”, and talks about how well it captures the subjects without the need to activate extra modes. It also highlights the natural blur that is achieved thanks to the depth of field: “The portrait mode is hardly necessary having such good results in automatic.” As you will see below, this analysis goes beyond the camera. The design is also addressed: the finishing finish, the combination of colors with the aesthetics Leica has its charm, but there is also at least a difficult problem to ignore and several reproaches arise, especially in the software section. “Hyperos, despite its personalization level, includes bloatware and certain debatable decisions,” says Mario. And of course, the dilemma arrives: is it worth investing in this mobile if what you are looking for is the best camera? Where is the limit between what it offers and what it costs? Is this Xiaomi 15 ultra the new photographic referent of 2025 … or a piece for a very specific audience? Recall that there are many devices that aspire to occupy this throne. If the camera is what you value most, if you are one of those who take photos every day and you like to get the most out of each shot, this 24/7 can give you just what you need. Give the play to immerse yourself in our most recent publication on the Xataka YouTube channel. Images | Xataka In Xataka | Just when the batteries were breaking all the records came the ultra-infinity mobiles. China has a lesson for them

I have run for weeks with a Zonense Suunto. It is a spectacular advance for both Marathonians and those who just want to lose weight

In recent weeks I have run a few times with a Suunto Race On my wrist next to a pectoral heart rate. Was necessary to try Zonense, the novelty presented a few months ago by Suunto. I wanted to understand her well and try her for myself. The truth is that it is an inventazo. What exactly Zonese is? Zonese is Suunto’s new technology to measure our intensity during exercise. The usual thing is to count pulsations per minute, but Zonese analyzes the Heard rate variability (VFC) To determine, in real time, how our body is responding to effort. The VFC is the variation in time between each heartbeat. Not all beats have exactly the same temporal separation, and these small variations contain valuable information on how our autonomic nervous system is working. High variability usually indicates a good state of recovery, while a low variability indicates fatigue or stress. The interesting thing is that This VFC changes during the exercise very specificly according to the intensity with which we work. And it is just this relationship that Zonese takes advantage of an algorithm called DDFA (Analysis of dynamic fluctuations without a trend) to determine in which metabolic area we are training. And that serves to optimize anyone’s training. Either an expert athlete who wants to increase his performance, or either a person who simply wants to go for a walk to lose weight and wants to do it in the optimal way. Three areas that change everything The training areas, or heart rate, are five, although according to whom you ask (including sports watches manufacturers) can give you six or seven. Zonense simplifies training only three colors: Image: Xataka. Green (aerobic zone). When your body is working mainly with oxygen and fats as fuel. It is the ideal zone for long training, recovery or fat burning. Your body could be kept here for hours. Do you want to go for a walk to lose weight? This is your area. Do not stay below or above. Yellow (anaerobic). Your body begins to use more glycogen and begins to produce lactate, although it can still process it. It is the “threshold” area, where performance improvements are important, but you can’t stay here for too long. Red (Vo2max). You are above your anaerobic threshold, your body produces lactate faster than you can eliminate. It is where the greatest adaptations of power and speed are achieved, but you can only maintain this effort during short time spaces. He Vo2max It is the maximum amount of oxygen that your body can process during intense exercise, is what measures our aerobic capacity. Why Zonese needs a heart rate A key aspect of Zonese is that it requires a heart rate. The optical wrist sensor that incorporates the watches is not enough, and there is a scientific reason for it. Optical sensors They measure the pulses by calculating changes in blood flow by lightbut They cannot accurately detect the exact intervals between beats nor the small variations necessary for the VFC analysis during the movement. Chest bands, however, directly detect the electrical impulses of the heart (such as an ECG), providing the necessary precision for this advanced analysis. In my tests I have used the Suunto Smart Sensor. It would be much better not to have to use it and limit us to the clock, but if these bands maintain their popularity it is for something: they are more reliable, precise and complete. My experience The first time I went to run with Zonense, I planned a 10 km training at a soft rhythm. Normally, based on my heart rate, I would run at about 5:30 min/km to keep my “aerobic zone”. However, after the initial 10 minutes that Zonese needs to calibrate (establishing your metabolic baseline of the day), the clock showed me that it was in yellow (anaerobic), despite the fact that my heart rate was just 145 ppm, which would traditionally consider as my area 2-3. It turns out that last night (several, in fact) he had slept badly and also came from three consecutive days of intense training. My body was telling me, through Zonesethat although the pulsations were not extremely high, it was metabolically working harder than traditional numbers suggested. I reduced the rhythm at 5:47 min/km and, indeed, I returned to the green zone. The training was much more pleasant and, surprisingly, the next day I felt quite recovered, something that would probably have happened if I had maintained my “normal” rhythm. On another occasion, after a week of rest, Zonese allowed me to maintain a faster rate (5:15 min/km) remaining in the green zone. My body was cooler and could work at greater intensity without entering anaerobic areas. Image: Xataka. This type of Personalized and dynamic adjustment is what makes Zonense so valuable. They are not just numbers on a screen, it is real information on how your body is responding to exercise at that precise moment. Another striking example: the shoes. With which I used for filming I marked VO2Max from 4:47 min/km, while when I went to flying I had to go down to 4:19 min/km to enter that area. Not only for elite athletes One of the biggest surprises has been to verify the usefulness of Zonese for people who are barely starting to play sports or simply go for a walk. It is common for a beginner to feel overwhelmed at the explanations of cardiac areas and to remove calculations from its theoretical maximum frequency. For this type of users, Zonese says something much simpler: “Stay in green”. With that simple instruction, the user will walk at a pace that maximizes fat burning without entering areas of greater intensity where the body begins to use glycogen. And it will avoid going too slow. And best of all: being real -time and calibrated information after ten minutes of activity, that user may be in the green or yellow zone depending on the day even if … Read more

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