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the iRobot beast with 30,000 Pa of suction and self-cleaning base with hot water

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When it seemed that the automated cleaning was stagnant, iRobot has just announced its new launch, which aspires to become the firm’s flagship this year. We are talking about Roomba Max 775 Combo with AutoWash Basea device that not only seeks to stand out for its raw power, but also for taking a giant step towards real autonomy by completely reducing manual maintenance. iRobot Roomba Max 775 Multifunction AutoWash Base and Hot Water Combo The price could vary. We earn commission from these links Say goodbye to difficult stains thanks to its power and high temperature scrubbing system There are several features that make this robot vacuum cleaner one of the most ambitious bets in the sector. For example, it comes with a suction power of 30,000 Paa figure that ensures deep extraction of dirt and pet hair on both hard floors and carpets. The system is supported by two anti-tangle rubber brushes to avoid typical blockages. One of the great new features of this iRobot Roomba Max 775 Combo is its scrubbing with hot water at 75°C. Unlike models that only moisten the floor, this robot scrubs at 200 revolutions per minute, applying constant pressure and high-temperature water to break up embedded dirt. Another of the technologies for which it stands out is PowerSpin PerfectEdgedesigned so that the Scouring roller reaches corners and edges well of the walls, one of the traditional weak points of this type of robots. Likewise, if you have carpets at home, this robot detects when it passes over one and raises the wet roller to avoid wetting the fabric while continuing to vacuum at maximum power, something that not all robot vacuum cleaners offer. Its AutoWash base is one of its great secrets The brain of the maintenance system is its new charging and car wash station. The base not only empties the robot’s solids tank into hermetically sealed, odor-controlled bags for up to three months, but it takes care of the most tedious part of the scrubbing. Once the task is finished, the base washes the scrubbing roller with hot water at 75ºC and dries it with hot air at 50ºC to prevent the appearance of moisture and bad odors. In addition, it intelligently manages the cleaning fluid dosage through its automatic mixing system StayClean. In the navigation section, iRobot has integrated LiDAR sensors capable of generating accurate three-dimensional maps of multi-story homes. This is supported by a front camera with Artificial Intelligence (PrecisionVision) trained to recognize and actively avoid small everyday obstacles such as cables, shoes or unforeseen events from our pets. ⚡ IN SUMMARY: iRobot Roomba Max 775 Combo robot vacuum cleaner with AutoWash Base ✅ THE BEST Scrubbing with real hot water… The combination of scrubbing at 200 rpm with 75°C water promises to eliminate dry stains that other robots only spread. Almost zero maintenance: Having the base not only empty the dust, but also cleaning the roller with hot water and drying it with air at 50°C is key to forget about bad odors and mold. ❌ THE WORST High end price… Although it offers very advanced technologies, its starting price of €899 is still a significant investment that not all budgets can afford. Official consumables unit… To get the most out of your self-cleaning and sanitizing, you’ll depend on the brand’s StayClean™ cleaning solution and AllergenLock™ bags. 💡 BUY IT IF… You live with pets. Thanks to the 30,000 Pa of suction, its anti-tangle brushes and the airtight bags that trap allergens, it is ideal for dealing with constant hair and dust. ⛔ DON’T BUY IT IF… You are looking for an economical option for basic cleaning, paying 900 euros for premium car wash functions will not make sense for you. Other Roomba robot vacuum cleaners that may interest you iRobot Roomba Plus 516 Multifunction AutoWash Base Combo The price could vary. We earn commission from these links iRobot Roomba 115 Combo with AutoEmpty Base, 2in1 Robot The price could vary. We earn commission from these links Some of the links in this article are affiliated and may provide a benefit to Xataka. In case of non-availability, offers may vary. Image | iRobot In Xataka | Best handheld vacuum cleaners: which one to buy and 6 + 1 recommended models from just over 30 euros In Xataka | The best window cleaning robots to always have shiny windows

“If it’s hot, turn it off and wait for it to cool. You can get serious burns.”

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Heat. It’s hot. It’s really hot. And our car notices it. Because when the temperature rises, we go to the beach, the town or the mountains and we load the car, our car notices it. First because we demand more from him than we ask of him the rest of the year. Secondly, because adverse weather conditions must be added to these demands, with very extreme temperatures. The combo is perfect for turning our car into a small oven that heats up and heats up until it reaches, metaphorically, boiling. And when that happens, a red light comes on on the instrument panel and it is best that we get out of the car. In that case, these are the precautions to take. The best, prevent “With the arrival of heat, various components of the car can suffer if they are not checked in time. The engine requires special attention, since high temperatures can cause it to overheat if the cooling system is not in good condition,” explains Francisco Javier Fuentes, mechanic and trainer at Midas. Sources point out that with the arrival of high temperatures, it is common for them to suffer brakes, battery and tires But he is clear that the main reason for breakdown is engine overheating and that to achieve this, the most important thing is to check the components carefully before leaving: “it is key to check the coolant level.” And with the increase in temperatures, having coolant in poor condition or a small undetected leak can trigger almost certain overheating of our engine. The signs, he explains, are clear: “If we observe that the engine temperature increases abnormally, a fault warning light appears, we hear strange noises or notice irregular behavior, we must stop in a safe place and evaluate the situation.” But here lies an important part of how we should act. If we are on a road open to traffic and we have had to stop on the shoulder, the DGT is clear: reflective vest, beacon and we just have to get out of the car If there is a safe and remote place. Otherwise we will have to fasten our seat belts and wait inside for assistance. If, on the other hand, we have been able to stop at a gas station, Midas believes that our best ally is patience and, without rushing, seeing what can be done: “In case of overheating, I never recommend opening the coolant tank while the engine is hot, as there is a risk of serious burns. The best thing to do is to turn off the engine, wait for it to cool and request assistance if necessary.” And it must be taken into account that the coolant works because the water in the car works at a very high temperature (above 100 degrees), especially if the car has overheated due to a breakdown. Opening the tank when it is hot to check its level can cause it to evaporate quickly and cause serious burns. Juan José Ebenezer, mechanical expert and content creator, explains in one of his videos how the system works. It points out that the coolant tank acts in a similar way to that of a pressure cooker. To prevent water from evaporating when it exceeds the 100 degreespressure is applied and if there is excess, the car itself decompresses downwards in a controlled manner. When the driver removes the tank cap, it decompresses, the water begins to boil because it is at more than 100 degrees and it is very likely that it will be expelled upwards, releasing a pressurized jet of water that can cause serious injuries. Photo | Jamie Street and windy In Xataka | The problem is not that the car’s air conditioning breaks down more in summer. The problem is that we don’t look at it the rest of the year.

The Dreame T16 Pro Heat arrives, a vacuum cleaner that works with very hot water to remove even the last stain of dirt.

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Nowadays we can find many devices that help us (although many others do not) when cleaning the house. Robot vacuum cleaners, cordless vacuum cleaners and a long list of devices are almost essential in the home. Of course, we cannot forget the floor scrubber vacuum cleaners, which are so effective on many occasions. Dreame is a very well-known brand in this type of devices and has just released a particularly interesting model: the Dreame T16 Pro Heat. Under paper it is very attractive for removing dirt from the house, although its price is nothing less than 629 euros. The price could vary. We earn commission from these links A device that allows you to reach the corners of the room The Dreame T16 Pro Heat stands out mainly for its shape, since the brand has managed to manufacture a floor-mopping vacuum cleaner that has a body only 9.85 centimeters thick. In addition, it has a total 180-degree reclining system so that we can clean even in narrow places, such as sofas (if they have long legs) or under the bed. But it also stands out (a lot) because it works with water that reaches temperatures up to 90 ºCthus promising to put an end to the dirt in the house; As the brand itself promises, it is capable of removing grease stains from the roots, such as cream and butter stains. It also works as a conventional vacuum cleaner offering a suction power of 30,000Paa very high figure so that it does not resist dust or pet hair, for example. It also includes an articulated arm called WhaleSweep AI Robotic Arm, which allows you to better clean corners. On the other hand, this device comes with its own charging base, and also Used to clean the roller. In addition, its battery offers a theoretical autonomy of up to 70 minutes in its Eco mode and can be connected to a smartphone through its app to adjust the water flows. ⚡ IN SUMMARY: dreame t16 pro heat ✅ THE BEST The design: It is ideal for leaving almost no gap uncleaned, whether under a sofa or bed or in corners. Your charging basewhich is capable of cleaning the roller. ❌ THE WORST Your autonomysince in maximum power mode it can be very tight depending on which homes. The pricewhich is quite high. 💡 BUY IT IF… It is your first device to clean the house, since it allows you to vacuum and mop comfortably, although manually. It is also interesting for dirt stains that are difficult to clean with a robot vacuum cleaner. ⛔ DON’T BUY IT IF… You already have a robot vacuum cleaner or a cordless vacuum cleaner, since there are devices that may fit better with what you need, and that cost much less. You may also be interested roborock Robot Vacuum Cleaner QV 35A Set, 8000Pa Suction, Two Liftable Spin Mops, Anti-Tangle Brushes, Reactive Technology for Obstacle Avoidance, Navigation and Mapping, White The price could vary. We earn commission from these links Rowenta The price could vary. We earn commission from these links Some of the links in this article are affiliated and may provide a benefit to Xataka. In case of non-availability, offers may vary. Images | Dreame In Xataka | Best handheld vacuum cleaners: which one to buy and 6 + 1 recommended models from just over 30 euros In Xataka | One day you are young and the next you have copied your parents’ vacuum cleaner

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

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

The hot Jupiters are evaporating, their winds reach 7 km/s and yet something is slowing them down

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The hot Jupiters They are fascinating planets. They orbit so close to their star that they sometimes have orbits of less than a day. Solar radiation is very high, so much so that sometimes these planets are practically evaporating. And they are usually tidally locked. That is, they have one face always facing the Sun and the other always facing the opposite side. As a result, one side is much hotter than the other and receives more radiation, so the gases in its atmosphere ionize, transforming into plasma and moving at high speeds. Put very briefly, they have the strongest winds of all the known planets. However, recently a team of scientists led from the Côte d’Azur Observatory in France, has discovered something very strange. Seven hot Jupiters in which the winds flow much slower than expected. The only explanation that seems logical for this phenomenon is that they are surrounded by a magnetic field. And it is great news, since, if confirmed, it would be the first detection of magnetic activity beyond our solar system. Totally counterintuitive. The speed of a planet’s winds can be measured by tracking the vaporized iron present in the gases in its atmosphere. The authors of the study that has just been published did so with 7 hot Jupiters thanks to two instruments: MAROON-X, from the Gemini North telescope, and ESPRESSO, from the Very Large Telescope (VLT). When analyzing the results they saw that these planets had very high speeds, between 2 and 7 kilometers per second. The winds of our own Jupiter, the fastest in the solar system, are 0.4 km/s, to give us an idea. What happens is that these winds went slower the hotter the planet was. One of the authors of the study, Vivien Parmentier, has rated it as something “totally counterintuitive”, since the logical thing is that the higher the temperature, the faster the wind flows. The key must be in the presence of a magnetic field. In fact, with all this temperature and speed data, they have even been able to calculate its intensity. The thing is about temperatures. Generally, the higher the temperature, the greater the difference between the dark and light sides of the planet and the more excited the ions in the plasma are, so the wind generally moves faster. The logical and expected thing would be that the higher the temperature of a hot Jupiter, the faster its wind. The speeds are very high, but much slower than expected. Furthermore, they are slower the hotter the planet is. The best explanation for this event is the presence of a magnetic field. Magnetic activity and wind. When a magnetic field acts on a moving charged particle, it is affected by something known as the Lorentz force. Very briefly, what happens is that the speed changes direction. The particle does not stop, but goes from flowing freely to being confined within the magnetic field. Every time he encounters his lines, they make him change direction. If we see this as a whole for the entire plasma, since it cannot move freely, its speed decreases. This would explain why a magnetic field was slowing down the wind. But why does it brake more the higher the temperature? Auroras on Earth The secret is inside. The magnetic field of a planet is directly related to the movement of the liquid metals inside it. For example, in the case of Earththe movement of molten iron and nickel on the outside of its core generates electrical currents, which give rise to a geomagnetic field that extends into space. They are responsible for us having that magnetic field that protects us from the sun’s inclemencies. The higher the temperature of a planet, the more violently the molten metals inside it move and, therefore, within limits, the more intense the magnetic field will be. In turn, the more intense it is, the more it will slow down the winds. Possible auroras. The location of auroras on Earth is related to the magnetic field. Another of the authors of the study, Bibiana Prinoth, points out that she likes to imagine that one of these Jupiters has a sky “covered by curtains of colorful light that dance over a planet that is half in perpetual day and half in endless night.” What is it for?. Now that we know that some exoplanets have a magnetic field, we could also take it into account when selecting habitable planets. Logically, hot Jupiters are not candidates at all. However, other less inhospitable planets may also have this protective shield. We already know that it is not enough to just be in the habitable zone. Other qualities, such as housing a sufficient amount of water either be far from supermassive black holes These are conditions that can help us refine the search much better. Each new discovery brings us a little closer to that great discovery. Image | Gemini International Observatory/NOIRLab/NSF/AURA/M. Garlick | Magnificent In Xataka | The Zoo Hypothesis: Why Aliens Likely Know About Us and Don’t Want to Contact Us

In Zambia, gas bubbles in hot springs point to an unusual birth: a new tectonic plate

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In 2005, the floor of the Afar Desert in Ethiopia suddenly opens up along more than 50 kilometers in just a few days after an intense seismic and volcanic sequence. For many geologists, that image was like observing in real time the type of fracture that, in millions of years, could end. creating a new ocean. Zambia has just given the most serious warning. Bubbles as an almost unequivocal sign. In Zambia, simple bubbles emerging from hot springs have begun to reveal something much bigger than a local geothermal phenomenon. Scientists at the University of Oxford believe have found signs that the southern African subsoil could be entering an early phase continental fracturea geological process so slow that it is imperceptible for human life, but so gigantic that it can end up rdrawing entire maps. The key is in the helium detected in the thermal springs of the Kafue Rift: Its isotopic composition contains too much helium-3, a chemical marker directly associated with the Earth’s mantle. Translated into less technical language, it means that fluids from dozens of kilometers beneath the crust are finding ways to ascend to the surface. And that, for geologists, is an extremely serious sign that the African crust could be starting to break down from within. A silent crack beneath the continent. Rifts are not simple faults or isolated earthquakes. They are areas where the lithosphere begins to stretch and weaken until, in some cases, it ends separating into tectonic plates different. Most never make it that far and remain an unfinished geological scar, but the Kafue Rift presents something that changes the scene: a active connection between the mantle and the surface. The researchers analyzed gases from eight wells and hot springs, six within the suspected area and two outside it to compare results. Only within the rift did they appear associated chemical signatures to the deep interior of the Earth. In addition to helium, they also detected carbon dioxide with characteristics typical of mantle fluids. For scientists, this suggests that the fracture is no longer solely superficial and that the system could be entering into a tectonic phase more advanced than previously thought. Location map of the extensional zone within the Central African Plateau of Zambia. The Kafue Rift is connected to the Luano and Luangwa rifts to the northeast, and to the western branch of the EARS in the Rukwa rift (RRB) and the Rungwe Volcanic Province (RVP) The possible birth of a new plate. The hypothesis is especially relevant because the Kafue Rift is part of a huge strip of geological weakness about 2,500 kilometersone that crosses Africa from Tanzania to Namibia. For years, many researchers had considered that the great candidate to divide the continent was the East African Rift, in Kenya and Ethiopia, where volcanic and tectonic activity is much more visible. However, the new study of Oxford researchers suggests that the southwest African system could have important structural advantages. According to Mike Dalythe natural crustal weaknesses in that region are better aligned with the tectonic forces acting around Africa, which would reduce the resistance needed for future continental breakup. In other words, the Zambian bubbles could be signaling the extremely slow birth of a new African tectonic plate. The continent moves, even if you don’t notice it. The investigation It also serves as a reminder that Earth is still a planet geologically alive. Hundreds of millions of years ago, all continents were part of Pangea before slowly breaking up into their current shape. That process never stopped. Beneath our feet, tectonic plates continue to shift, recycling minerals, raising mountain ranges and opening new oceans. Africa is today one of the places where this dynamic can best be observed. From the Afar Depression to the East African Rift, the continent already presents huge tectonic scars visible from space. What is happening in Zambia could be an additional piece of that continental puzzle, although scientists insist that we are talking about time scales of millions of years and not immediate changes. A geological fracture… and economic opportunity. Beyond scientific fascination, the discovery It has very real economic implications. Early rift systems typically offer relatively clean access to geothermal energy and gases valuable substances such as helium and hydrogen, increasingly important for the technology and energy industry. Unlike mature volcanic zones, where fluids appear mixed with more aggressive and difficult to handle gases, in Kafue the material from the mantle still arrives relatively “pure”. In fact, that is precisely the reason why several energy companies already They are funding research in the region. The problem is that the authors of the study themselves they ask for caution: The samples come from only a specific part of the system and it remains to be seen whether these signals are repeated throughout the entire fracture. But even with caution, the idea is so powerful that it is already on the table: in Zambia, the bubbles that silently emerge from a hot spring could be announcing the beginning of a continental separation that will one day change Africa forever. Image | PexelsDaly et al., 2020 7 Legg, 1974; Tamburello et al., 2022 / R. Karolytė et al. 2026 In Xataka | We thought we were clear about how the continents were formed, until researchers found a stone in Australia In Xataka | More than 5 million earthquakes spread throughout the Earth, gathered in a very complete map

Data centers are real “heaters”. And they are settling in regions as hot as Aragón

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The data centers They are a black hole in several senses. They are drinking the global NAND chip manufacturing capacity (what affects SSDs, to RAM oa SD cards), the companies that they make batteries they can’t cope and consume wateryes, but much more alarming is energy consumption. In this sense, they are insatiable and, in the end, thousands of pieces of equipment that generate heat are causing another unexpected effect: they are turning the facilities into heat islands. And it is something that has the potential to affect 340 million people. What’s happening. Andrea Marinoni is an associate professor in the Earth Observation group at the University of Cambridge. Also the coordinator of a group of researchers from both the center and the Nanyang Technological University who have published a study called “Heat Island Data: Measuring the Impact of Data Centers on Climate Change.” In it, they present the results of measuring more than 6,000 data centers located far from dense urban areas with the aim of identifying whether these facilities, by themselves, are a notable heat source. The result? “An impact elderly than expected,” according to the researchers. They compared historical temperature measurements from the locations of those data centers over the last 20 years to compare how things have changed recently and identify whether those data centers have had any influence. And, as we said, the impact seems to have been strong: an average of 2°C, with maximums of up to 9°C in some cases. Doesn’t matter the place. This generates a heat island effect, which is when a large amount of heat is concentrated in one area that should not be there. In big cities It’s something that usually happens and that’s why the most efficient urban architecture seeks to combat the phenomenon. And it doesn’t matter where the data center is. In the study they present several examples: Bajío region in Mexico: high data center density, stable climate, but a land surface temperature increase trend of 2 degrees Celsius in the last two decades. It is something that was not identified in nearby areas without data centers. States of Ceará and Piauí in Brazil: increasing trend of 2.8°C with a projection of reaching 3.5°C in the next five years when this is not observed in the rest of the areas. Aragon in Spain: an anomalous increase of 2°C in surface temperature that stands out compared to neighboring provinces. Potential damage. Aragón is a worrying example because heThe region is consolidating as one of the ‘lungs’ of hyperclimbers in Europeas well as one of the regions of Spain key to the expansion of data centers and European technological sovereignty. And the problem is that, according to the study, the impact of this increase in surface temperature reaches up to 10 kilometers away from the hyperscalers. They detail that in the surrounding areas that are about 4.5 kilometers from the data centers, an increase of 1°C can be measured, which seems little, but when we talk about these climatic effects, it is a lot. And, furthermore, they estimate that the impact of increased temperatures due to this broad heat island effect is something with the potential to affect 340 million people. Yes, but. This research has not been the only recent one on the effect of data centers on the land on which they are installed. Researchers at Arizona State University they installed sensors on cars driving near these centers to capture measurements and noticed the same thing as the Cambridge researchers. But one thing to keep in mind: both studies show measurements, but they have not been peer-reviewed. And there are experts, such as Ralph Hintemann, principal investigator at the Borderstep Institute for Innovation and Sustainability, who point out that, although the results are there and are interesting, some figures “seem very high.” In fact, it focuses not so much on the heat that is concentrated around data centers but on the big problem: the amount of energy they need and the return to fossil fuels to meet peak demand. Image | Tedder In Xataka | Data centers in space promise to save the planet. And also ruin the earth’s orbit

The internet has become obsessed with drinking hot water in the morning. Science is clear about what it does (and what it doesn’t)

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We live in an age obsessed with ice. From the omnipresent iced coffee winter to complex viral drinks like sleepy girl mocktail that flood our social networks. However, in the midst of this liquid sophistication, the most revolutionary gesture for our gastrointestinal and mental health upon waking might be the simplest, most boring and cheapest of all: a glass of hot water. Faced with the inertia of an accelerated modern life full of stimuli, serving ourselves a glass of water at a pleasant temperature is presented as the first self-care gift that we can give to our body after emerging from the inertia of sleep. But what is the truth behind this practice? Is it an internet myth or a truth backed by science? The viralities of social networks. Just enter platforms like TikTok or Instagram to see thousands of influencers documenting how this morning habit deflates them, gives them energy and improves their digestion. As documented New York Timeshot water has become the new wellness superstar on-line. However, what the internet has dubbed a novel “longevity hack” is actually a fundamental pillar thousands of years old. This practice is deeply rooted in Indian Ayurveda (where the morning ritual is known as usha paana) and Traditional Chinese Medicine (TCM). In these cultures, it is believed that the cold turns off the agni (the digestive fire) and weakens the vital energy or Qiforcing the body to expend extra energy to warm the stomach. Hot water, on the other hand, balances the Yin and the Yangkeeping the body calm. Plain water, tea or infusions? When experts talk about this habit, they literally mean just that: water. Pasu Harisadee, traditional Chinese medicine educator, points out that “simple water is the most neutral base and the most recommended for most.” Of course, additions are allowed. Squeeze a little lemon provides vitamin C; add fresh ginger strengthens defenses and combats nausea; and a touch of honey can soothe the throat. However, the medical portal Verywell Health makes an important distinction versus tea or coffee: although infusions provide fluids, the caffeine present in coffee or certain teas has a slightly diuretic effect. Pure hot water is the undisputed champion of direct hydration. The golden rule and the temperature paradox. This is where medicine draws a non-negotiable red line: be careful not to get burned. Although some portals such as Healthline suggest that hot drinks They can be consumed in a range of up to 71ºC, oncologists and gastroenterologists are much more strict. As a study published in Frontiers in Nutritionconsuming drinks over 60ºC (140ºF) on a regular basis is associated with an increased risk of esophageal cancer, in addition to damaging oral tissues and burning taste buds. The ideal temperature should be lukewarm or comfortingly hot, never smoking to the point of burning. As Helen Ruckledge summarizes, nutritionist: “A tip: if you choose hot water, boil it and let it cool instead of drinking it directly from the tap.” The science behind. The core of this debate lies in separating magic from physiology. And in this area, experts have very clear positions: Intestinal hygiene and digestive “awakening”: This is the most supported benefit. Ana Luzón, Nutrition and Dietetics technician, explains in ABC which is about pure “mechanical efficiency”. Our body is at about 37ºC; Introducing ice water suddenly means a little thermal stress. Hot water acts as “intestinal hygiene”, dissolving food remains and mucus. For her part, Dr. Lisa Ganjhu, a gastroenterologist consulted by The New York Timesillustrates it perfectly: during the night, the digestive system is paralyzed. Hot water generates waves of contraction and relaxation in the muscles of the esophagus, stomach and intestines. “It’s basically telling everyone, ‘Okay, get up. We’ve got to get going,’” he says. This natural lubrication is key to combating morning constipation. Achalasia relief: To give it a deeper medical dimension, hot water is particularly useful for people who suffer from achalasia, a rare disorder that makes it difficult for food and liquid to pass into the stomach. Heat helps relax the lower esophageal sphincter, making the swallowing process easier. Relaxation of the nervous system: Holding and drinking a hot cup activates the parasympathetic nervous system, which is responsible for the “rest and digest” mode. This calms muscles, reduces tension, and relieves morning anxiety. Besides, a 1978 study already explained, the steam from hot water helps clear nasal congestion and relieves cold symptoms much better than room temperature liquids. Debunking myths: Neither ‘detox’ nor fat-burner. The big question that haunts the reels: Does hot water detoxify? No. Kristen Smith, nutritionistand Diane Lindsay-Adler, dieticiandetail that water does not magically eliminate toxins, the liver and kidneys are responsible for that. Hot water simply helps these organs do their job of filtering properly by keeping them hydrated. It is vital to compare this with dangerous internet methods. The obsession with do “detox” based on liquid diets or juices is a danger. A Northwestern University study showed that eliminating fiber living on juices for just three days is enough to ruin the intestinal microbiome. Hot water, on the other hand, is safe and assists the body without destroying the flora. Does it speed up metabolism and lose weight? Neither. There is no solid scientific evidence that it acts as a fat burner. There is a very brief metabolic cost while the body adjusts the temperature of the liquid, but it will not cause you to lose weight. The temporary weight loss that some notice on the scale is due, purely and simply, to the fact that the hot water has helped them go to the bathroom. The other side of the coin. A good analysis is not complete without its counterpoint. When is it not a good idea to drink hot water? If your goal is pure rehydration (for example, after intense exercise), a 2013 study showed that fresh water (at about 16ºC, similar to that of the tap) is the most effective. Additionally, there is a curious paradox with sweat: drinking hot … Read more

We have been searching for the origin of life in hot puddles for years. Bennu has shown that radioactive ice works just as well

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When the capsule OSIRIS-REx mission landed in the Utah desert in September 2023, NASA knew it had a treasure on its hands. We are talking about a bit of black dust that was collected millions of kilometers from Earth and that was about to rewrite one of the most important chapters of science: the origin of life. What we knew. Until now, the predominant theory regarding the origin of life told us that for “cook” all the basic components of life, such as amino acids, heat and liquid water were needed to make a kind of hot chemical soup. However, science has just flipped the script: the bricks of life They are not only formed in heatbut they can be born in the most extreme cold and under gamma radiation. And that completely changes our understanding of how we got here, and also of the possible presence of life in any corner of the Universe. The importance of Bennu. Definitely is the protagonist of this whole story, and it is nothing more than an asteroid of about 500 meters in diameter which functions as a fossil from the early solar system. But the most interesting thing is that it is approximately 4.6 billion years old, the same age as the Earth, although, unlike our planet, its surface has not melted or been drastically altered by geological processes throughout its ‘life’. And little by little we are learning more about this asteroid thanks to the samples brought by OSIRIS-REx that had already been confirmed in preliminary analyzes an unusual abundance of carbon, nitrogen, water and organic compounds. But what the team led by Penn State University has now found goes one step further. The surprise. This same team, when analyzing the isotopic composition of the amino acids present, especially glycine, came across a chemical signature that did not fit with the classical theory of formation in hot water. A radioactive freezer. Until now, we thought that amino acids in asteroids were formed primarily through aqueous alteration processes: ice melts from heat, liquid water interacts with rock, and voilacomplex organic chemistry. However, science now suggests that liquid water is not necessary for amino acids, an essential molecule of life, to form. Simply from simple ice they can arise without much problem. And there are many of these in the universe. The catalyst. The other important factor in this formation was the energywhich in this case came from gamma radiation emitted by radioactive elements that were abundant in the early solar system. And the energy could not come from thermal heat, since this process occurs in icy environments, long before the asteroid was compacted or heated enough to have liquid water. This explains why we found amino acids both in asteroids that underwent a lot of water heating and in those that remained “drier” and colder. Life, it seems, is more stubborn than we thought and can begin to develop in the most hostile conditions of the vacuum of space. An increasingly complex menu. But we are not just talking about simple molecules, since analyzes of Bennu samples have identified a variety of compounds. Among these is tryptophan, which is an essential amino acid, much more structurally complex, and vital for terrestrial life. Besides, DNA and RNA components have been detectedin addition to ammonia and amines, surpassing in richness many samples of famous meteorites such as that of Murchison. Backlash to Panspermia. If amino acids can easily form in irradiated ice grains in the solar nebula—before the planets even formed—it means that these “ingredients” are spread throughout the solar system. The fact that Bennu, a B-type carbonaceous asteroid, is packed with these compounds reinforces the idea that Earth didn’t have to produce all the components of life itself. A constant shower of asteroids and meteorites during the late intense bombardment could having “sown” our planet with a pre-made deep space biological starter kit. That is why in the end looking at a grain of Bennu dust is looking at ourselves. Or, at least, to the chemical great-great-grandparents who made us here today. Images | NASA Hubble Space Telescope In Xataka | NASA has just announced that this large asteroid has a 1% chance of impacting Earth. That’s not normal

Building data centers in space was the new hot business. Elon Musk just broke it with a tweet

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The debate over the feasibility of building gigantic data centers in orbit had been heating up for months. It is Silicon Valley’s new big idea to solve the insatiable energy appetite of artificial intelligence. Until, as usual, Elon Musk has entered the conversation with the subtlety of a hammer. Elon Musk has joined the chat. After weeks of debate about the feasibility of building servers in space, Eric Berger, editor of Ars Technica, argued that will end up being a more plausible option when the technology exists to assemble satellites in orbit autonomously. It was the moment chosen by Elon Musk to enter the conversation. “It will be enough to scale the Starlink V3 satellites, which have high-speed laser links,” wrote the CEO of SpaceX. “SpaceX is going to do it,” he said. A phrase that has probably fallen like a blow on startups that are taking advantage of the momentum of AI to go out in search of financing. Why the hell do we want servers in space? The idea of ​​moving computing to Earth orbit responds to a very real crisis: AI is an energy monster, and Demand for data centers continues to grow. Given this panorama, space offers two advantages that are impossible on Earth: Almost unlimited energy: In a sun-synchronous orbit, solar panels receive sunlight almost continuously (more than 95% of the time). Free Cooling: Land-based data centers consume millions of liters of fresh water to cool. With a large enough radiator, the gap can be “an infinite heatsink at -270°C.” The heat would be radiated into the vacuum without wasting a single drop of water. The new titans of space AI. Musk is not the first to see the business. In fact, he arrives at a party where the first contracts are already being distributed. Jeff Bezos predicted during the Italian Tech Week that we will see “giant training clusters” of AI in orbit in the next 10 or 20 years. Eric Schmidt, the former CEO of Google, bought rocket company Relativity Space precisely for this purpose. And Nvidia, the undisputed king of AI hardware, has actively backed startup Starcloud, which plans to launch the first NVIDIA H100 GPU into space this November, with the goal of eventually building a monster 5-gigawatt orbital data center. Why Musk would win. The vision of Bezos, Schmidt and Starcloud faces two colossal obstacles: the cost of launch and the construction of the servers themselves. Calculations for a 1 GW data center would require more than 150 launches with current technology. And Starcloud’s plan for a 4 kilometer wide array is a logistical nightmare. Elon Musk has Starship, the giant rocket on which all of his competitors’ business models depend to be profitable. And you don’t need build a new orbital data center. Just adapt and scale the one you already have. 10,000 satellites and counting. SpaceX’s Starlink constellation no longer competes against satellite internet, goes for terrestrial fiber. Musk’s company has already launched 10,000 satellites and is preparing the deployment of the new V3 satellites, designed for Starship with high-speed laser links. According to SpaceX itself, each Starship launch will add 60 terabits per second of capacity to a network that is already, in practice, a global computing and data mesh. While Starcloud needs to hire a rocket and assemble 4km-wide solar and cooling panels, Musk simply needs Starship to finish development to continue launching satellites. In Xataka | Starlink stopped competing with satellite Internet companies a long time ago: now it is going for something much bigger

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