There is a renewable energy source that works 24 hours a day, and Japan has opted for it: osmotics

Omnipresent wind and solar energies have the same problem: intermittency. The wind does not always blow and the sun does not always shine. This dependence on weather conditions It forces us to look for storage solutions OA depend on a 24/7 available source to have a constant supply. But what if that other source was also renewable energy? Japan bets on osmotics. In August, the Japanese city of Fukuoka launched the First osmotic energy center in the country. It is just the second installation of this type in the world and represents more than a pilot test for a technology that promises to revolutionize the energy mix. “I hope it extends not only in Japan, but throughout the world,” said Akihiko Tanioka, an expert in the field of the Tokyo Science Institute. The plant will generate about 880,000 kilowatts-Hora a year to feed part of the desalination plant that supplies fresh water to the city. Although it may seem like a modest figure, equivalent to the consumption of about 220 Japanese homes, its true value is that it works continuously. It is not affected by the weather or time of day, and does not emit carbon dioxide. The power to mix fresh and salted water. Osmotics is a new generation renewable energy based on A natural phenomenon that we all study at the institute: osmosis. When two solutions with different salt concentration are separated by a semipermeable membrane (which lets the water pass, but not the salt), the water of the less concentrated solution flows naturally towards the most concentrated to try to balance the mixture. Fukuoka’s plant places fresh water (treated wastewater) on one side of the membrane, and salt water (sea water) to the other. Fresh water crosses the membrane to the salt water side, increasing volume and pressure on that side. The conression is used to move a turbine that, connected to a generator, produces electricity. Therefore, this renewable source is also known as saline gradient energy or “blue energy”. From the initial promises to the first problems. This technology is not exactly new. Already in 2017, in Xataka we echoed its enormous potential: The studies suggested that it could generate up to 40% of the world energy demand if it would be used in the mouths of all rivers. The challenge was the efficiency of the membranes and the cost of the facilities. The first systems, such as delayed pressure osmosis, suffered bioincructing problems: bacteria blocked membranes, drastically reducing their effectiveness. Other systems, such as “inverse electrodialysis”, were more durable but generated very little energy. The Fukuoka plant, like the first in the world inaugurated in Denmark in 2023 by the Saltpower company, demonstrates that progress in membrane technology is allowing to overcome these obstacles. Nanotechnological membranes. In France, the company Sweetch Energy has developed Much more efficient nanometric size membranes, capable of generating between 20 and 30 watts per square meter. In comparison, the most advanced systems to date generate 12.6 watts. The company seeks to install its first real -scale generator, Osmorhône 1, at the mouth of the Rhone River. The potential of this unique river would reach 500 MW, equivalent to mid -nuclear reactor capable of supplying two million people. And it would be just the beginning. All deltas and estuaries in the world release 30,000 energy from each year, a figure similar to world demand of electricity. Salina bachata in Fukuoka. In addition to the friction of the membranes, the osmotics also loses energy in water pumping. But, as he explains The Guardianthe new Fukuoka plant uses the concentrated brine that remains of the desalination process to increase the salinity difference and, thus, the energy potential available. The inauguration of the Japanese plant and the advances of companies such as Sweetch Energy mark a turning point for the osmotics. They are the first steps to stop being a laboratory promise and become an industrial reality. In a clean, permanent energy, which does not depend on the climate and that can be integrated into existing infrastructures such as ports, desalination makers or locks. Japan has made its bet: the mixture of fresh and salted water will be part of its energy mix. Image | Umi-No-Nakamich Desalination Plant (Obayashi) In Xataka | Japan has just made a monumental bet for Perovskita’s solar panels: they are his best chance against China

Send files among all my devices was a roll. Then I found this free application, Open Source and Multiplatform

Airdrop and Quick Share (before Nearby Share) They are two sensational inventions, but they have a problem: they are not multiplatform. Airdrop only works in the Apple and Quick Share ecosystem alone in Android and Windows, so we have a problem if we mix devices. If you have an Android Mac and mobile, sending files from each other is a pain. If you have an iPhone and a Windows or Linux PC, the same. The solution? How could it be otherwise, an application Open Sourcefree, multiplatform and that works at one thousand wonders. My case. I have a Windows computer, an Android mobile and an iPad. I use the iPad to read and design, the mobile for all the things of day to day (but mainly take photos) and the PC for everything else. One can imagine how complex the file sharing is. To date, the simplest solution I had found were Telegram saved messagesbut it did not seem to me the most efficient way to send files, especially heavy, from one device to another, particularly from and from the iPad to others. LESS Airdrop. Whoever has an iPhone and a Mac will know the comfortable and above all, how fast is it sending any file through Airdrop: you share it, the devices are among themselves and wait a few seconds. Is there no alternative that works on any device, regardless of the brand? There are several, but the one that has managed to convince me for a matter of ease of use, for being free, multiplatform and Open Source His name is LocalSend. Localsend interface on Android | Image: Xataka LocalSend? It is an application that allows you to send files between devices through a local network without the need for Internet connection. To do this, use an API Rest and HTTPS encryption. It does not require external servers, but connects the devices with each other. The app has been developed by Tien do Nam and Your code is available in githubin case someone wants to take a look. And how does it work? Surprisingly well. The transfer is fast, stable and agnostic to the device. And if that were not enough, there is not a single ad, no data is not collected or data with third parties are not shared. A unicorn, go. Can be downloaded in Android, iOS, Windows, Linux and macOS From the official website. Patient potato (my mobile) sending files to Bright Melon (my PC) | Image: Xataka The only handicap is that both devices must be connected to the same Wi -Fi network, something that is not a problem if we are at home. Unfortunately, it is not compatible with Wi -Fi Directat least for now. If we had to use it away from home, it would be enough to create a local Wi -Fi network from the mobile and connect the devices to it. What can it serve. He has come to me to pass the brutes of the videos he recorded For Tiktok from the mobile to the PC (before I climbed them to Amazon Photos and downloaded them on the computer, like the beasts). It has also been good for me to spend some heavy designs from the PC or to send files to my mobile partner (Android) to yours (an iPhone). If you usually transfer heavy files between devices, localsend can be a great ally. Images | Xataka In Xataka | How to send large files: 9 free services with unlimited size

Nvidia says that China has the best open source AI in the world. These praises have a very clear intention

Jensen Huang, the co -founder and general director of Nvidia, is in China. At the end of last week He met with Donald Trump with the purpose of defending the interests of his company before an administration that has drastically restricted your business In the country led by Xi Jinping. During the last fiscal year, which expired on January 26, 2025, China represented approximately 13% of total income of Nvidia with a figure of about 17,000 million dollars. In practice, this Asian nation is the third best client of this company only behind the US and Taiwan. The decisions made by Jensen Huang during the last months clearly reflect that he is determined to defend your presence in this market. And he is doing it. A few hours ago he has made a statement during his visit to the International Exhibition of the China Supply Chain, in Beijing, which is worth not overlooking. Jensen Huang does not give stitch without thread “The models of artificial intelligence (AI) Open source of Deepseek, Qwen and Kimi are the best reasoning models in the world today. They are very advanced. ” Huang has pronounced These words during a talk with Wang Jian, the founder of Alibaba Cloud, the AI and cloud computing unit of this gigantic Chinese company. And this statement has not arrived at any time. Whether or not, objectively, the three models mentioned by this Executive are very competitive, as the reports of Demodazzle either Mediumamong others. The really interesting thing is that Jensen Huang has praised these Chinese models at a very delicate time for Nvidia. At a time when You need to strengthen your complicity with Chinese companies to which they have been selling their GPU for several years. Last week Jensen Huang got a promise from Donald Trump: Nvidia can sell again Your H20 GPU To his Chinese clients very soon. The reception that this chip initially received was very good even though its capacities are clearly lower than those of the other proposals for this company. Jensen Huang has praised these Chinese models at a very delicate time for Nvidia. At a time when you need to strengthen your complicity In fact, initially the Department of Commerce allowed its sale in China because this integrated circuit met the restrictions it had imposed. And despite its limitations Their sales grew by 50% quarter to quarter since it arrived in this market in mid -2024. Everything was complicated for Nvidia in the middle of last April. And is that the US Department of Commerce imposed new restrictions To the export of the H20 GPU, which in practice caused this chip to stop reaching the Chinese clients of this company. During the next few weeks this GPU will come back to the facilities of Tencent, Alibaba or Bytedance, among other Chinese companies, but Nvidia will have it more difficult than ever. And is that Huawei, his main Chinese competitor, is being reinforced with great intensity. Only one day after the US Department of Commerce formalized its latest sanctions He presented his GPU Ascend 920a chip for AI that is clearly intended to occupy in the Chinese market the gaps left by the NVIDIA H20 GPU. The GPU Ascend 920 will begin to be manufactured on a large scale during the second half of 2025 using 6 Nm integration technology that have presumably developed side with Huawei elbow and SMIC. The characteristics of this lithographic node have not yet been officially confirmed, but it will probably use the technique known as Multiple patterningwhich is the same one that SMIC is using 7 Nm chips. In addition, the GPU Ascend 920 will reach a 4 TB/s transfer speed for the memory subsystem thanks to the use of HBM3 chips. Image | Nvidia More information | SCMP In Xataka | The US gives Huawei a great opportunity: to get its new chip for AI with the Nvidia market in China

Reddit has become the best human data source. AI is trying to prey them

Everyone wants Reddit data. And they want them why they are data humans. That is the Great value of a platform which has become the crown jewel of AI companies. They want to use that data To train their AI modelsand Reddit is tired of trying without asking for permission … and without paying. Reddit demands Anthropic. The social network, fed up with this type of behaviorhas registered a lawsuit against Anthropic, the creators of Claude, so consider a contract violation and for participating in “illicit and unfair commercial acts” when using the platform and data of the social media company without authorization. Or what is the same: for stealing the data for your AI. Blunt criticism. In The demand Reddit’s legal managers begin strong: “Anthropic is an artificial intelligence company of late flourishing that proclaims the white gentleman of the artificial intelligence industry. It’s anything but that.” According to Reddit, Anthropic shows a public face in which he presumes his respect for the law and doing things legitimately, and another private “that ignores any rule that interferes with his attempts to fill his pockets even more.” Human data treasure. Reddit has become In a valuable source of human information. If someone looks for answers, experiences and opinions in raw, this is the platform that has ended up becoming an absolute reference. In Reddit they know it. His legal manager, Ben Lee, explained in The Verge the following: “Reddit’s humanity has a unique value in a world flattened by AI. Now more than ever, people seek authentic conversations between humans. Reddit houses almost 20 years of rich and human debates about practically all imaginable topics. These conversations do not occur anywhere else and are fundamental to train linguistic models such as Claude.” Reddit began to protect himself very soon. Knowing that his “human data” were that great treasure with which to make box, Reddit began to make movements for take advantage of that data very soon. A few months after the launch of ChatgPT, it appeared that He made his APIas shortly before I had done Elon Musk with X/Twitter. He controversial movement It was clearly aimed at protecting the platform from those birds of prey in which IA companies had become. Then the demands would begin. If you want my data, pay. Reddit’s policy has been clear from the beginning, and there have been companies that have assumed the message. Google was one of the first to reach an agreement with Reddit and paid 60 million dollars to the platform To train your AI models with that data. OpenAi ended up doing the samealthough the amount that was paid to Reddit has never been revealed. Anthropic Discrepa. An Email from Anthropic to CNBC reveals that “we disagree with Reddit’s complaints and we will defend ourselves vigorously.” Interestingly, Anthropic herself has blocked the access of her Claude model to Windsurf, the newly acquired programming startup by Openai. One of its co -founders He affirmed that “it would be rare for us to sell (the API of) Claude a OpenAi.” It is a reasonable argument – and debatable – but it does not seem to be equally logic in the case of Reddit. But it already has other pending demands. That statement contrasts with two other demands that Anthropic has received in the last two years. Last August, three authors sued it in a Federal Court in California for having “built a billionaire business stealing hundreds of thousands of copyright“Before, in October 2023, Universal Music also sued her in Tennessee for a” systematic and generalized violation of the copyright of the lyrics of his songs. “The record giant He lost that battleHowever, which meant a disturbing victory for the technological ones. Internet looting continues. It is another case of that Absolute looting that AI companies are carrying out on the Internet. None of them savealthough of course there are flagrant cases such as perplexity or the recent scandal of Goal downloading books from books with copyright to train their models. If there are data that can be used to improve the quality of these models, companies try to get them, and it is just what happens with Reddit. The IAS do not want copyright. This whole process is part of a worrying phenomenon: there is still not punishment for all these companies despite being violating copyright. Openai already asked for a white letter to operate In that field, but other companies They joined that unusual proposal to eradicate copyright lawsat least for their AI models. The argument of “fair use” remains its great shield in front of these demands, but the reality is that the months go by, we insist, there is still no consequences for this flagrant robbery of the internet content. Image | Anthropic | Reddit edited with chatgpt In Xataka | After 19 years, Reddit is finally a profitable company: he has achieved it with a peculiar strategy

The source of many websites is no longer freed

Blockages due to judicial judgment that protect protection mechanisms against alleged illegal football broadcasts They go further of concrete web pages. At the request of one of them, Starring Telefónicaoperators Like Vodafone They have come to block one of the most basic internet components: the sources on which we read the contents. What happened. Operators such as Digi and Vodafone, at the request of Telefónica and based on Judicial Judgment No. 294/2022 of the Commercial Court of Barcelona, ​​temporarily blocked access to two domains of Google Fonts (fonts.googleapis.com and fonts.gstatic.com). This is the first case in which, based on this type of sentence, web pages are not blocked without absolutely any relationship with the retransmission of parties. Here is one step further: a necessary element is blocked so that some websites can work. Why has it happened. In view of user complaints, The response of giants like Vodafone Spain has been the same as they have wielded this part for a while: “Good afternoon, the blockade of these pages comes from a judicial sentence, we simply execute the indicated. Greetings.” Based on the judicial judgment, Vodafone and Digi temporarily blocked access to this cloud of Fuentes. Both domains serve typographies of websites, others and under the umbrella of Google. The consequences. Although the affectation does not seem to have been massive, the blockade has attacked one of the most basic internet pillars: its sources. How it collects broadbandwebsites such as Google Calendar or Maps experienced specific problems by not being able to correctly load elements of its interface. “The other day my overwhelmed computer scientist because the blockade that did not let debian repos, until he thought it was that and VPN’s shot.You will say that it has to do with the p *** football. “ Google Fonts is a typographic sources library. Some that you can download on your computer yourself. In the case of the web, when a URL points to its API, the browser loads the sources from the Google cloud. If the URL is blocked, there is no data to load. It also affected some of the Github repositories and users of users. Some of them, completely innacious and out of play, as the Users affected in Menéame. Why keep going. After LaLiga, the most immediate doubt had to do with the end of the blockages. The operators soon clear it: Blocks still have life. Although in this case LaLiga is unmarked, since the petition has been executed by Telefónica, the sentence leaves something clear: these weekly update mechanism will have “a duration subject to the duration of three sports seasons, that is, until the end of the Football championships of the 2024-2025 season “. In other words, while there are LaLiga matches, there will be blockages, regardless of whether or not LaLiga that orders them. O2 explained that, after LaLiga, the Second Division Days are held, as well as the promotion matches. The promotion play-off final is planned for June 21date on which the LaLiga calendar officially closes. “The enemy of clubs”. LaLiga continues to protect the importance of audiovisual rights and the fight against fraud in Spain and Portugal. “It is necessary to take into account that for about 70% of clubs, audiovisual rights are their largest source of income.” As detailed, in the last year more than 3,000 IP addresses have been detected transmitting this type of content. The problem? Killthus affecting Municipalities, Some of the largest forums in Spainand hundreds of web addresses without the slightest relationship with the retransmission of content without copyright. Image | LaLiga, Xataka In Xataka | “We have gone from entering 70,000 euros per month to 40,000”: LaLiga IP blocks are bleeding many companies

What is and how to install this free and open source app to use local and free models

Let’s explain What is and how to use Google AI Edge Galleryan open source application in which you can use artificial intelligence bots to maintain conversations, create images or help you design PROMPTS, all totally free. This application uses local AI models, which means that Everything happens inside your phone And the data is not sent to any server, everything is private. The negative part is that this also means that they are much less powerful than Chatgpt, COPILOT, Deepseek, Gemini or others. What is Google ai Edge Gallery Google ai Edge Gallery is An open source android applicationwith which you will be able to interact with multimodal artificial intelligence models. Google already has Gemini as the main bot of AI, but this gallery gives you the option of using other models. This is a totally free application that only only is available for Android. You are not going to download it from the application store, but you have to lower your file APK for Android. Then, you will have to Install the APK manually on your own. There is still no version for iOS, although they are already working on it. The idea is to have an application where to install open artificial intelligence models, and be able to perform several tasks with them. At the moment there are three sectionsone to ask for images, another to design prompts and another to use AI to chat. The latter becomes the closest thing to chatgpt. This application is for experienced userssince it will require downloading models manually, and linking to its APIs on the origin website. But it is a fairly promising tool. How to install the application The first thing you will need to do is enter the application website, whose address is github.com/google-ai-Ege. In it, go down to the section Get Started In Minuteand click on the link latest apk That will appear. This will automatically start the file download. When you download the APK, you can start the installation directly. Remember that if you have never done it, you will have to give the browser permission to install applications of unknown origins. Now you can enter the main screen, where you will have The three sections to generate content. In each of them you will tell you the number of models available. Below right there is a +button, which opens a lower window with which you can import the file of an AI model you have on your mobile, and thus install it manually. When you enter one of the sections, you will have the possibility of Download any of the available models To use it. You will tell you what they occupy, and when you press in one you will have a button to start the download. You may have to log in to the website where they proceed. And once you download the model, you can click on your name and the chat will open to use it. From here it is like chatgpt, you write the prompt you want and the AI ​​will answer you. In Xataka Basics | The best PROMPTS to save working hours and do your homework with Chatgpt, Gemini, Copilot or other artificial intelligence

The University of Oxford has found reservations of an energy source for 170,000 years. And he has the recipe to exploit them

In a world that seeks to leave behind fossil fuelsthere is a gas that has begun to be outlined as the promise of A clean future. Its potential as an inexhaustible source of Green energy It has aroused both enthusiasm and frustration: producing it without contaminating is still expensive and technologically complex. However, a group of scientists could have found the key to hydrogen under our feet, from the very depths of the earth. Clean gold underground. We have told it On other occasions. Hydrogen has been long promoted as a key piece in the transition to a future without emissions, but also as an essential resource for modern life: in addition to being a clean fuel, it is indispensable for produce fertilizers that support half of the world’s population. The problem? That 99% that is used today It comes from hydrocarbonswhich represents around 2.4% of global carbon dioxide emissions. With a projected demand of 90 million metric tons in 2022 to some 540 million in 2050the challenge is monumental. Until now, cleanest solutions (Like electrolysis with renewable energies or carbon capture) have failed to be economically competitive. Here appears the new Oxford study Posted in Nature: The earth could have solved the problem for us millions of years ago. An unexplored reservoir. In this way, Oxford researchers together with professors at the University of Durham and Toronto have revealed that the continental cortex of the Earth has generated, throughout the last geological millennium, sufficient hydrogen amounts to supply the energy needs of humanity For at least 170,000 years. This immense reserve, natural and emission free, remains largely trapped undergroundintact. Although until now the measurements were sporadic and scattered, the New job It offers for the first time a coherent framework, a “map” if you want, to locate these reservoirs: a “Exploration recipe” (They call it) that details the types of rock, temperatures, fluids and geological conditions necessary for hydrogen to form, migrate and be trapped in exploitable deposits. The approach is not theoretical: it is designed to guide the commercial search for natural hydrogen globally, with the potential to radically transform existing energy models. Ingredients, processes and threats. Such as Professor Chris Ballentine explained in a statementleader of the study at the University of Oxford, finding hydrogen in the earth’s crust is like baking a sufflé: if one fails in any component (quantity, temperature, time or type of rock), the result will be useless. The study Identify the factors that allow a geological hydrogen system to be viable: from the chemical reactions that generate it, to conditions that destroy itlike the presence of certain underground microorganisms that feed on it. This biological threat, indicated by the co -author Barbara Sherwood Lolar, forces to avoid areas where underground bacteria can consume hydrogen before it can accumulate in usable concentrations. Ubiquitous, diverse and list source. There is much more, since The work It also disassembles previous myths on the origin of hydrogen, discarding as unfeasible the sources from the mantle terrestrial and focusing attention on common formations of the continental cortex. These can be both recent (of some millions of years) as an eldest, and are distributed globallywhich greatly expands the geographical exploration potential. Plus: the crucial, They sayIt is not to find a specific type of rock, but to understand the interaction between the chemical, thermal and historical conditions that favor the generation and storage of gas. From theory to action. Aware of the strategic value of their findings, the authors have founded the Snowfox Discovery Ltd.a company dedicated to locating natural hydrogen reserves with social impact. Its objective is clear: to find competitive, clean and sustainable sources of hydrogen, capable of replacing highly polluting current production and feeding the global energy transition without the need for expensive industrial processes. Yes Geological recipe Developed by these researchers, it can be repeatedly repeated in different regions of the planet, we would be facing the closest to an energy revolution … underground. One that does not require new futuristic technologies or dreams of merger, but simply learn to hear THE SECRETS THAT THE EARTH He has been whispening For hundreds of millions of years. Image | Rita Willaert In Xataka | Green hydrogen consumes huge amounts of water. A new incredibly simple invention allows you to use seawater In Xataka | The doors of green hydrogen from Spain have found its starting point: the Basque Country

Freepik has just launched an Open Source model with a groundbreaking characteristic: licensed images

The Spanish Startup Freepik is already one of the absolute referents in the segment of artificial intelligence, but its last launch is especially significant. It is a new model of its own generative called F lite which is a new blow to the table for several reasons, but especially for an especially striking. Licensed images. Freepik, in collaboration with Fal.AI, has presented F lite, a model of generative text in image that stands out especially for being trained “exclusively with high quality images, with legal support and copyright protected” thanks to an important detail. They come from the Freepik library. Inspired (partly) in Deepseek. In Xataka we have talked to Omar Pera (@ompemi), Product responsible in Freepik. He has explained to us how the Deepseek Chinese model served as inspiration by demonstrating that it was possible to create a small but very capable model with much less resources and data. F lite is trained with “only 80 million images, compared to more than one billion usual images” in models of the generative images of the competition. Open Source. As explained in the technical report that accompanies the launch, F Lite is also An Open Source model of 10 million parameters-diminuto if we compare it with the 1.76 trillion estimated GPT-4-which has been trained for two months in 64 GPUS NVIDIA H100. A sample of the result obtained with F lite via Fal.AI. The car does not resemble Renault 5, true, but at least at the level of photorealism the result is really decent. Small but solvent. As explained Iván de Prado (@ivanprado), one of the top people responsible for its development, F lite is a decent model to generate certain types of images despite its small size. It also has its limitations, and can show anatomical defects or not give good results in complex or text rendering. The model is available in two versions in Hugging Face (regular, Texture) and in Fal (regular, Texture). It is also possible Download the github and use it at home, for example via comfyui. Is just the beginning. The launch of this model raises the beginning of an especially striking project that could gradually make it an alternative that rival the most ambitious models, but always supported by that argument of being trained with licensed images and being Open Source. More options for users. The model is not part of the moment of the offer of models available on the Freepik web platform, yes, and does not compete directly with models such as FluxMystic or image 3. “The bet and strategy does not change,” Pear pointed out, and consists in “optimizing the user offer and offering the best technology to solve the problem” and the need of each user. Demands everywhere. We have been seeing how artificial intelligence companies make indiscriminate use of content protected by copyright to train their models. They usually do it without a license and without having permission to use those works, and that has caused numerous Copyright rape demands, especially in cases Like OpenAi. Freepik Enterprise. This announcement comes almost at the same time as its new business offer, called Freepik Enterprise. Omar Pera confirmed that the initial reception of F Lite has been remarkable since this new service. In this area it is precisely where using a model like this is especially interesting, because “companies are covered” when using a model trained with licensed images. A by adobe and other rivals. Pera also pointed us out in Freepik They do not compete With images, “we are going for professional use cases of marketing or design.” They are not compared to a Getty or a Shuttersock, and more “with the creative tools of Adobe, with Leonardo (part of Canva from a year ago) or with the professional services of Midjourney. “ Image | Freepik In Xataka | All the great AI have ignored the laws of Copyright. The amazing thing is that there is still no consequences

The bone of the sardines is an important source of calcium. And it is not the strangest food that this mineral gives us

Calcium is a fundamental element for our body and, especially. Surely we have heard throughout our life (and especially in our childhood) that you have to drink milk to gain calcium For our bones. While milk is far from being the only food capable of nurturing our bones with this mineral. First of all, perhaps it is convenient to explain why we need calcium, because the notion that calcium is good for our bones, although exact, does not give us excessive information either. Fundamental for the formation and maintenance of bones and teeth, calcium is the most abundant mineral in the human body and 99% This is precisely in our bone structure. That is why His lack It can cause problems such as rickets in children and osteoporosis in adults. But calcium also exercises as electrolytea mineral with electric charge that our body uses for various functions. In it Case of calcium Specifically, its presence in muscle cells allows us contract and relax our muscles and transmit signals through the nervous system, in addition to helping blood and hormones circulate through our body. It is difficult to talk about calcium without starting with dairy. These are the foods that we most associate with the element. Milk contains abundant calcium and some of its derivatives contain even more. In a natural yogurt, low in fat (about 125 grams) we can find Approximately 248 milligrams of calcium. Some cheeses contain calcium concentrations that are even superior. However, there are foods that can contribute both calcium and dairy products. Or even more. Some calcium sources can be surprising. We can find abundant calcium in vegetables such as the Brocoli, Kale or Collized, or in the Berza or cabbage. But perhaps the most surprising plant source is another sheet: that of the ortiga. Cooked, this urticating plant can contribute us Around 125 milligrams of calcium per 100 grams of product. Diverse sources Another important calcium source is in fish. We know that calcium in our body is concentrated in the bones, but the bones of other animals also have calcium. Normally we do not consume food with bone, but there are exceptions. For example, the thorns of The sardines. This makes this fish, consumed with bone as we usually do for example when we eat it, be it Another unique calcium source. The drinks that we usually use as an alternative to milk are, curiously, a source of calcium in themselves. The reason is that these are usually made from calcium -rich foods. Soybean is one of them (and therefore also other derivatives such as tofu), but also some nuts such as almonds. Some of these drinks can also be enriched with calcium to strengthen this contribution. In general, we can also find various foods enriched with calcium, including dairy, juices, and flours and their derivatives. We can even find Calcium supplements If we require them. The calcium content of a food is not the only thing that should matter. The reason is that our body does not always absorb all calcium present in these. In the absorption of this mineral, another nutrient plays a fundamental role, the Vitamin d. This micronutrient plays a key role in the absorption of calcium and also phosphorus. In Xataka | The lack of protein represents a risk to our health. These are the key symptoms to identify it Image | Monicore

The US has detected an object in space with strange behavior. The source that released it has also located: Russia

Last year there was a fact that formalized the rhetoric of the “spatial war” It was a fact. It was known, in some cases it was intuited, that the United States, Russia and China had transferred their confrontations hundreds of kilometers from the earth through their satellites. However, in December any glimpse of doubt was cleared: United States He designed the bases of a war attack in space. Now they have detected something unusual, and their source comes from Moscow. First was surveillance. In March, The CNN counted that the Pentagon had intensified the surveillance of the spatial activities of Russia and China in the face of growing evidence that both powers are testing New capabilities Offensive in orbit. As American defense officials then said, Russia had carried out coordinated satellite exercises that simulate attack and defense tactics, including maneuvers in which several satellites surround and isolate another, demonstrating a possible scenario of neutralization of enemy ships. China, meanwhile, had executed similar maneuversincluding the closed formation of satellites and offensive approach practices, actions that reinforce suspicions about the growing militarization of outer space. Three satellites and a stranger. Thus we arrive at the news of these days. Russia has launched space three highly secret satellites (Kosmos 2581, 2582 and 2583) that have revived concerns about a possible preparation for space war. On February 2, the satellites were sent to orbit aboard a Soyuz rocket, without Moscow revealing details about their purpose. Not just that. To the unusual maneuvers they have performed since their deployment, the recent appearance of A mysterious objectpossibly released by the Kosmos 2583 satellite on March 18, whose strange draw Observe with concern. The United States’s space force has already cataloged the new object, while some speculation suggests that these satellites could be practicing “attack and defense” tactics orbital, designed to isolate or neutralize enemy satellites in case of a future conflict. Trajectory of the object detected Theories Although astrophysicist Jonathan McDowell, from Harvard-Smithsonian Center, nuanced interpretations Alarmists when considering that the observed maneuvers can simply be due to similar orbits, recent history also reinforces skepticism. In 2022, Russia had already launched the Kosmos 2558 in the same orbital trajectory as an American military satellite, which was interpreted as an act of spatial espionage. The geopolitical context and the background of the Kremlin in the matter of covert technologies They raise suspicions that this new satellite trio may be carrying out surveillance missions, interception or testing tests Antisatellite technologiesalthough for now there are no conclusive evidence of hostile actions. The “conquest” of space. We said it at the beginning. The maneuvers attributed to satellites Kosmos 2581-2583 They are framed in a broader scenario in which both Russia and China would be exploring New combat capabilities orbital. The Recent CNN reports They quote officials of the United States Department of Defense, who say that both countries are carrying out military training in low orbits, a key zone for their proximity to land and its frequent use for communication, recognition and intelligence satellites. This trend reinforces the fear that space will be consolidated as a new confrontation field Strategic, one where powers develop technologies to deactivate, interfere or even destroy enemy space assets. Uncertainty and surveillance. So far we write, the nature or function of the object released in March has not been determined with certainty, which increases the tension around this satellite trio. McDowell explained That between February 25 and March 14, proximity operations were registered between the satellites, and that two of them passed near Kosmos 2583 on March 7, although it could not be confirmed if there was an attempt at offensive coordination. Even so, the US spatial force maintains close surveillance on the orbital movements and patterns of these artifacts, given the possibility that it is covert tests of new military capacities in space, a dimension that is no longer purely scientific or commercial, but also tactic. The challenge of “interpreting.” In the background, a problem that until now had not taken place in space, that of the opacity of the nations with respect to the missions of their satellites and the repeated use of covert technologies in their space operations that make it difficult to obtain certainty. In an environment where the simple fact of sharing orbits or making approaches between satellites can have both harmless and aggressive aims, analysts, in this case of the United States, must move between caution and prevention. As We already explainedwhile the calls multiply to establish clear international standards on behavior in space, Washington and its allies already consider spatial domain as a Active strategic theaterand each new mysterious object, such as the newly released by Kosmos 2583, adds one more tension layer to technological and military rivalry in orbit. Image | POT In Xataka | The space is no longer a two thing with the arrival of China, so the US has devised a war plan just in case: “Space fire” In Xataka | Satellites with missiles from Earth is ended up: the United States takes the first step to end the practice

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