vacuum

how to dissipate heat in a vacuum

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We call it a cloud, but in reality it lives on solid ground, more specifically in mammoth buildings with endless corridors, or that’s how it has been until now. The idea of ​​​​taking data centers into space It sounds increasingly louder and is presented as the solution to the insatiable energy appetite of artificial intelligence. In the midst of this growing obsession, the player who holds the key to all current hardware has just had a reality check. NVIDIA puts on the brakes. Google, Elon Musk, Jeff Bezos…everyone has talked about taking data centers to space. Even NVIDIA itself He has participated in projects of this type, but it seems that he has changed his mind. As published in BezingaDuring the company’s latest earnings call, Jensen Huang took the opportunity to lower short-term expectations for orbital data centers. dissipate heat. The idea of ​​bringing data centers to space was born from the need for energy. In space, energy is practically unlimited because solar panels can be receiving light all the time. The problem, according to Huang, is dissipating heat. On Earth, data centers use air or water for cooling, but in the vacuum of space there is no air. The only way to dissipate heat in space is by conduction to radiators which, in the CEO’s words, must be “quite large.” NVIDIA knows this well because already has a satellite with H100 GPUs in space. Why it is important. Huang’s intervention is relevant because NVIDIA is the main provider of the infrastructure that xAI, Amazon, Google and other technology companies need for their space plans. If the biggest beneficiary of selling chips for these projects warns about their viability, the market listens. Even so, his words have not been a complete refusal, but rather a “not yet.” Analysts agree. In a Gartner report to which he has had access The Registerclaim that companies are wasting money pursuing the dream of space data centers. Their argument is that orbital facilities are not profitable, but they also claim that they could not satisfy the necessary computing demand. In addition, it also highlights the technical challenge that cooling these structures in the vacuum of space would entail and another problem: the extreme temperature fluctuations that can go “from 100 degrees kelvin to 400 degrees kelvin” (between 126ºC and -173ºC). This would require the use of special materials and components, much more expensive than their terrestrial equivalents. Musk vs Altman. There is little that the CEOs of xAI and OpenAI agree on and data centers in space were not going to be any different. Elon Musk announced a megaproject with SpaceX and xAI to launch a constellation of one million satellites. At an event a few days ago, Altman called the idea ridiculous.although he also admitted that “it will make sense one day (…) we are not there yet.” In Xataka | Aragón is becoming a Spanish data center giant thanks to Amazon. There is still a big unknown Image | İsmail Enes Ayhan and NASA

the questions you have sent us (and their answers) about this cordless vacuum cleaner and mop

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Although cordless vacuum cleaners are already common today, mops are not so common, and that makes products like this more interesting. X-Clean 7 from Rowenta, a 2-in-1 vacuum cleaner and mop. We have been testing it for several days, and now we bring you a video with all the answers to the questions that you have been sending us about it to our Instagram profile. Rowenta X-Clean 7 Q&A We start by answering the most basic things. This product is classified as an electric mop, although it is actually a hybrid. Everything is done at onceno vacuuming first and then scrubbing like other products. When you pass it, the vacuum module is on the front, but although the brush is the same, the dirt does not mix with the water you use to scrub. The key is the clean water and cold water system. The clean water tank moistens the roller throughout the cleaning process, and the dirty water tank collects the water that the roller recovers after scrubbing. In addition to this, when you finish you put it on its base, press the self-cleaning button and the device cleans itself, and you only have to worry about the dirty water tank. You ask us about the surfaces for which it is valid. It is designed for hard floors such as tiles, parquet, wood, marble or laminate. You will not have problems because it detects the type of surface and always applies the necessary humidity to avoid damaging it. Yes indeed, It is not intended for rugs or carpets.there this scrubber is not worth it. The same is not true for sofas and other surfaces. As for which cleaning product to use, Rowenta recommends using a specific cleaning solution for hard floors or non-foaming soaps. It has three cleaning modesan automatic one that detects the type of floors, an ECO mode for routine passes that consume less and has to collect less dirt, and a MAX mode to give you maximum power. We also talked about the dimensions, in addition to a hand weight of just one kilo thanks to a kind of system that pulls the head. It is very quiet, and its autonomy can be 50 minutes in ECO mode, an automatic mode that is usually enough to clean everything. But the best thing is that you watch the full video to see all the answers we give to the questions you have sent us. This content is a collaboration and sponsorship between Xataka and the brand, but there is no agreement on the script or the selection of the topics. The editorial content is created entirely by Xataka.

iRobot invented and dominated the robot vacuum industry. Now it’s bankrupt

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The company that created the Roomba robot vacuum cleaners, iRobot, has declared bankruptcy in the United States. The future of its products seems safe, but only after a move in which the winner is the Chinese technological steamroller. what has happened. The company already r in March, and a potential bankruptcy seemed imminent. The financial results The third quarter certainly didn’t help. This Sunday, those responsible requested entry into the so-called “Chapter 11”, a technical bankruptcy that companies in trouble request. The objective of this process is for a company to reorganize its properties and debts to continue operating instead of liquidating all its assets. Disastrous results. iRobot generated nearly 682 million in revenue in 2024, but its benefits have been fading, mainly due to competition with Chinese manufacturers such as Ecovacas. Although iRobot continues to be a protagonist in markets such as the US and Japan, this competition has forced it to lower prices and see its profit margins reduced. The tariffs. Another cause of the fall according to the documents of that bankruptcy application has been the tariffs. Especially those that apply to imports from Vietnam, where iRobot manufactures its robot vacuum cleaners for the United States, and which are 46%, a figure that is hardly sustainable for the manufacturer. That tax increased costs by $23 million in 2025 and made it more difficult to establish future plans. Amazon has gotten away with a good. amazon announced the purchase of iRobot for 1.7 billion dollars – later the figure was adjusted to 1.4 billion. The operation finally was canceled because as the companies expressed “there was no path to regulatory approval for that agreement.” When that agreement fell apart, iRobot began accumulating debts that Picea, the manufacturer of the Roomba, assumed. iRobot will pass into Chinese hands. The plan to get out of iRobot’s technical bankruptcy consists of something very simple but equally terrible for its creators. Picea will end up taking over 100% of iRobot’s assets and will cancel the $190 million of accumulated debts, in addition to the $74 million of debts that iRobot also owed to Picea under the manufacturing agreement that both had. Users can rest assured. According to iRobot, this process will allow there to be no impact on the functionality and support of its products and applications, its customer programs, its partner relationships or its supply chain. This means that current Roomba users will continue to be able to enjoy them with (theoretically) the same level of support as before. Not only that: Picea will theoretically continue to develop and market new models going forward. In four years they are worth 25 times less. In 2021, iRobot had a valuation of $3.56 billion. The pandemic boosted demand and significantly encouraged sales. Four years later data compiled by LSEG and cited in Reuters They indicate that its value is 140 million dollars, 25 times less than then. Pioneers devastated by the Chinese steamroller. iRobot was created in 1990 by three robotics experts from MIT. Although they initially focused on defense and space projects, in 2002 they launched the first robotic vacuum cleaner Roomba. The product was an absolute success, and today it continues to be the dominant brand in the United States (42% share) and especially in Japan (65%). China takes over the market. In recent years, Chinese manufacturers have managed to innovate faster and end up outselling iRobot models. Roborock, Ecovacs, Dreame and Xiaomi have already managed to outsell iRobot in the first quarter of 2025, and with the current agreement – ​​Picea, a Chinese manufacturer, will be behind the Roomba – China’s effective market share will be almost absolute in this industry. A clean and silent conquest. In Xataka | “Humanoid robberies are a fantasy”: iRobot co-founder believes there is a robotics bubble

We have left Moss out for nine months in space at the mercy of vacuum and radiation. He’s back alive and breaking records

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Life is much more tenacious than we usually think, even when we take it out of its cradle and expose it to the most hostile environment we know: the emptiness of the outer space. And to carry out this test, a team of scientists has decided to take a moss and expose it to conditions outside of Earth, giving a result that opens a path for us on how to create new ecosystems on other planets. The protagonist of this story is Physcomitrium patensor better known as primitive moss. And there were a series of Japanese researchers those who wanted to check What would happen if this little primitive moss was left outside the International Space Station. The logical a priori thing would have been that he would have died instantly, since he did not have oxygen, the environment was really aggressive, with a lot of direct radiation as he did not have the protection of our ozone layer and logically he was not in his natural habitat. But the reality is that he has managed to endure the absolute emptiness and the cosmic radiation for 283 days. But not only has it survived these conditions, but upon returning to Earth it has been planted and germinated. Without a doubt a great surprise in the face of the resistance that these organisms have. A round trip. The research, led by biologist Tomomichi Fujita of Hokkaidō University and published in iScience, started from a premise that seemed like science fiction: can a primitive land plant withstand prolonged exposure to cosmic elements without protection? To find out, in March 2022 they launched hundreds of samples aboard the ship Cygnus NG-17. Once on the ISS, the astronauts attached these samples to the outside of the station, orbiting at about 400 km altitude from the Earth’s surface. There they stayed for nine months, exposed to constant cycles of light and shadow, extreme cold, and relentless ultraviolet radiation. In January 2023, the samples returned in a SpaceX capsule (mission CRS-16) and when analyzed in the laboratory, the results perplexed the researchers. More than 80% of the spores had survived and were able to germinate. Not everything is the same. Just as two humans may not be equally resistant, something similar happens with mosses. In this research, we tried to verify the resistance of three types of fabric, but the winner was undoubtedly the sporophytewas the hardest fabric. Something that was already suspected, but the litmus test that this was was missing. In terrestrial laboratories, stress is usually tested separately. That is, in a season an organism is exposed to heat, or cold, or high radiation. But in this case everything happens at the same time, and that is why it was expected that his survival would be null with this combination of factors. But the reality is that the spores protected within the sporangium endured. And although the scientists noted a degradation of one type of chlorophyll due to visible light, the structural and genetic integrity of the plant remained intact enough to be “resurrected” upon returning home. Its importance. Growing a moss on the surface of the ISS seems insignificant and a silly waste of money. But the reality is that this finding has two very important readings. The first looks towards the stars and the terraforming process. It must be taken into account that mosses were the first plants to colonize land on our planet 500 million years ago. It can be said that they are natural pioneers thanks to the fact that they can settle on bare stones and then when they die, they generate soil where more complex plants later emerge. In this way, if they can survive space travel and withstand extreme conditions, they could theoretically be the biological vanguard. in lunar or martian bases to help modify its atmosphere and ecosystem. Something more urgent. Right now, our goal has to be to create crops that are more resistant to the extreme weather conditions we face on our planet. And the solution may lie in these spores and their genetics. Understanding the mechanism that gives them this great resistance is vital so that we can modify seeds of other crops with the aim of conferring the same resistance. A vital step to face everything that may be yet to come to our planet. Images | Mike Frandson POT In Xataka | Fungal spores and other microorganisms are candidates for surviving on the surface of Mars, according to NASA

The PS5 Pro is back on sale, sales on Kindle and Samsung, deals on robot vacuum cleaners and more

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There is only one week left before we face Black Friday, but stores have started powerful campaigns in which we are seeing discounts big enough to take advantage of one, two or a few more. Like every Friday, today we are going to review the best current deals on technology. Kindle Paperwhite by 130.58 eurosan e-book reader with an anti-glare screen for reading at home or away. Samsung Galaxy S25 Ultra by 989 eurosone of the best phones of the year with one of its best prices to date. Xiaomi Robot Vacuum X20+ by 299.99 eurosa robot vacuum cleaner that we really liked and that offers very good vacuuming and mopping results. PlayStation 5 Pro by 699.99 eurosthe most powerful PlayStation console at a more reasonable price. Fire TV Stick 4K by 33.88 euroshe dongle from Amazon, which is once again the one with the best quality-price ratio in the store’s offers. Kindle Paperwhite As in every campaign, Amazon has lowered the price of many of its eReaders with very juicy prices for reading lovers. However, the one that has the best quality-price ratio is the Kindle Paperwhitewhich for 130.58 euros We are talking about a reader with a seven-inch anti-glare screen. Its autonomy is up to 12 weeksIt weighs very little and is very pleasant in hand. Plus, you have access to the Kindle store. Other Kindle readers that may interest you: Kindle Paperwhite (latest generation) The price could vary. We earn commission from these links Samsung Galaxy S25 Ultra Stores have lowered the price of Samsung Galaxy S25 Ultraone of the best phones of the year and our favorite in the Xataka NordVPN Awards 2025. But MediaMarkt has gone one step further and considers it 989 euros. It is a super high-end all-terrain mobile that stands out both in power and in its screen with anti-reflective treatment. Plus, its software is a real treat and will receive updates for seven years. Other mobiles that may interest you: Samsung Galaxy S25 Ultra (256GB) The price could vary. We earn commission from these links Xiaomi Robot Vacuum X20+ On a personal note, during Black Friday I am looking for a good robot vacuum cleaner that vacuums and mops. At the moment, the one that interests me the most due to its quality-price ratio is the Xiaomi Robot Vacuum X20+ (I leave you other alternatives just below that also interest me), which for 299.99 euros This is a model that we really liked at Xataka. Has laser navigationis compatible with Alexa and Google Assistant and offers a suction power of 6,000 Pa. Other robot vacuum cleaners that may interest you: The price could vary. We earn commission from these links PlayStation 5 Pro The PlayStation 5 Pro It is an expensive console and we rarely get to see it on sale, but during the Black Friday season you can buy it for a slightly better price. By 699 euroswe are talking about the most powerful console of the brand. If what you are looking for is the higher graphic quality without losing performancethis model may be more interesting than the standard one with or without reader. Plus, it comes with 2TB of SSD instead of one. Other offers on PlayStation that may interest you: The price could vary. We earn commission from these links Fire TV Stick 4K Of course, during the time of Black Friday there could be no shortage of offers on the Fire TV Stick. Again, the one that has the best quality-price ratio is the Fire TV Stick 4Ksince for a little more than what the HD model costs we can make a fairly big jump in specifications and performance. By 33.88 eurosit is a model that plays in 4K and is compatible with Dolby Vision and Dolby Atmos. Other offers on Fire TV Stick that may interest you: 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 | Amazon, Samsung, Xiaomi, PlayStation In Xataka | The best mobile phones (2025), we have tested them and here are their analyzes In Xataka | Which Kindle to buy: buying guide with recommendations to get it right with Amazon e-book readers

It is proof that China has won the robot vacuum war

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Already it was seen coming for a long time: iRobot is sinking and bankruptcy is knocking on the door. The one that pioneered robot vacuum cleaners has been going through difficulties for years and their current situation is critical: they have admitted that they barely have cash to operate and there are no more ways to earn income. It looks very bad. what has happened. iRobot has published the third quarter results of the year and paint a very gloomy scenario. Revenue was $145.8 million, down 33% in the United States, 13% in EMEA (Europe, Middle East and Africa) and 9% in Japan compared to the same period last year. The serious thing, according to its CEO, is that due to “market difficulties, production delays and unforeseen interruptions in shipments” the use of cash increased and right now they only have 24.8 million dollars and no additional source of income in sight. Why is it important. iRobot was the one who started the robot vacuum cleaner market in 2002 with the first Roomba model. In 2016 They were market leaders. with a share of 64%, but the emergence of more competitors meant that the pie began to be shared more and more, reducing its portion. iRobot reached its peak valuation in 2021 and from there it was downhill and without brakes. In 2022 Amazon threw her a lifeline and tried to buy herbut regulatory problems in the European Union they caused the agreement to end up being diluted. Its fall is not only important because it was the company that inaugurated the sector, which made us call robot vacuum cleaners ‘Roomba’, it is also confirmation that Chinese companies have conquered the sector. Possible bankruptcy. In a document addressed to the Securities and Exchange Commission Last October, the company warned of its critical situation and opened the door to bankruptcy as soon as December 1st. The reason is that it has a credit agreement with The Carlyle Group and has two key requirements: to demonstrate that the company can continue to operate and to maintain a minimum of core assets, something they cannot currently meet. The problem is that they have already received two extensions and the deadline is December 1. They need another extension or sell the company, but they have no buyer. What’s wrong with my Roomba. In statements to The VergeiRobot says the company continues its daily operations, including support for its products. However, if the company closes and the cloud stops working, it will mean that the Roombas will lose their online connectivity. That is, they cannot be controlled from the mobile phone with the app, but they will continue to work using the buttons. It’s already happened. Even if iRobot goes bankrupt, its cloud services may continue for a while, the question is for how long. This is what has happened with Neato vacuum cleaners. The company closed in 2023 and their cloud continued to function, until a couple of weeks ago when they announced that they turned it off permanently. Neato vacuum cleaners only work in manual mode and it is no longer possible to use the app to control the robot or create cleaning routines. Image | Xataka In Xataka | Dyson is late to the robot vacuum party. Your ace in the hole is an AI that identifies and removes difficult stains

the questions you have sent us (and their answers) about this flexible vacuum cleaner

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We will respond to your doubts about the Rowenta X-Force Flexa flexible portable vacuum cleaner perfect for leaving all corners very clean. We have been testing it for several days, and now we bring you a video with all the answers to the questions that you have been sending us about it at our Instagram profile. Rowenta X-Force Flex Q&A We begin our review of all the doubts about the vacuum cleaner by talking about the power it has This Rowenta. Its maximum power is 240 Air Watts, which is what will be activated when you use Boost mode. Come on, it’s not the normal power, but the one it gives you when you press the turbo. Another question has to do with their suction levels, because there are several. First you have an ECO mode which serves to consume less energy and emit less noise, and with which in our tests we have been able to vacuum most of our house without too many problems. Then you have Max modewhich gives you extra power for especially complicated surfaces, such as carpets. And finally you have the Boost mode, which is the most powerful, and is used for that dirt that remains more embedded and is more difficult to vacuum. The vacuum has a start and use trigger, and another red one that takes you directly to Boost mode to make it easier to use and more accessible. But you also have an automatic mode It uses normal mode, but when it detects more demanding soil, it increases the power. You have also asked us about the noise it makes when vacuuming. ECO mode is usually around 70 dB, which is very little annoying. The Max mode goes up about 10 or 15 dB and everything starts to sound like a conventional vacuum cleaner, and the Boost mode almost reaches 100 dB, but it is the one we are going to use the least. In the video, we also show you vacuum cleaner accessoriessuch as its flexible broom or its different brushes that adapt to your needs. You also have another accessory for crevices and another for the sofa, as well as a motorized brush for pets. We then go into depth about the flexible broom to show you how it works. Finally, we also answer questions about battery and autonomyhow much the charging module occupies and how long it takes to fully charge the battery. We ended up talking about filters, cleaning and replacing them. But the best thing is that you watch the full video to see all the answers we give to the questions you have sent us. This content is a collaboration and sponsorship between Xataka and the brand, but there is no agreement on the script or the selection of the topics. The editorial content is created entirely by Xataka.

The Xlean TR1 changes robot hand vacuum cleaner in a second. The most interesting thing is that he learns from you

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A robot that learns from you, who observes how you clean and then replicates your movements to do the job on your own. This is how the TR1 is presented, Xlean’s first modela startup formed by experiencers with experience in DJI and Roborock. This device combines two functions in a single body: it is an autonomous vacuum and hand vacuum cleaner, capable of becoming a second. According to Yanko DesignThe company wants TR1 to be much more than another appliance: it raises it as a step towards domestic robots capable of adapting to each home. The launch of the TR1 arrives at a time of effervescence for domestic robotics. In the IFA 2025 fair we have seen bets like the DREAME CYBER X.which incorporates Quadtrack technology to climb stairs, or LG’s “invisible” robotdesigned to hide under the sink and always keep the mop. Faced with these proposals, Xlean seeks to differentiate himself. The startup, founded in 2022 and backed by the Robotics Institute of Hong Kong UniversityHe wants to open a new chapter in the sector with a more ambitious idea. UU device that mixes instant transformation and adaptive intelligence The TR1 key is in its ability to move from autonomous robot to hand vacuum cleaner in the blink of an eye. This change is made through an electrical blocking system that Release the main module with a single gesturedesigned to act instantly in front of any unforeseen. The startup says that this design is not only practical, it also serves as a gateway to the learning system. In manual mode, the device collects data on how the user cleans and transforms those records into patterns that applies later when it works autonomously. The manual TR1 mode is the basis of what Xlean calls “self -evolve intelligence.” Thanks to an RGB-D camera, a green laser sensor and motor encoders, the device records in detail how the user addresses cleaning tasks. The company states that these data are anonymized before being sent to the cloud and that its collection is always carried out with explicit consent, although that protection remains a promise that will have to be checked. Unlike what it might seem, learning is not immediate or limited to each team. According to Xleanthe information obtained is used to train artificial intelligence models that, in theory, benefit the entire user base. The advances would be incorporated into new versions of the software distributed by OTA updates, so it is not clear when or how real improvements will be perceived in each home. To reassure users concerned about their privacy, the device integrates a physical shutter that blocks the camera and offers a visual confirmation that it is not recording. For its proposal to work, the TR1 needs real cleaning power, especially in manual mode, when the user faces the worst spills. Xlean has developed a system called Dual-Motor Directsuction, which combines a high pressure suction with 800 rpm rollers to aspire solids and liquids at the same time. The company ensures that this design prevents the remains from spreading, thanks to Vortexmatrix technology, perfected after three years of tests and 40 prototypes. Yanko Design points out that these figures are ambitious, although it still remains to verify its effectiveness outside the laboratory. The TR1 also bets strong in navigation. Its square design allows you to clean corners with an accuracy of up to 6 mm, a weak point of traditional circular robots. According to the company, the device is able to map a 150 -square -meter house in just three minutes and Recognize more than 400 types of obstacles Thanks to a combination of vision and identification by Lidar. Xlean ensures that this performance is the result of millions of simulated scenarios and that its reinforcement learning software is prepared to move without being trapped. These promises must be validated in real evidence, but point to a remarkable advance. Xlean has also designed the Omni Station as a key complement to the TR1. The base includes an emptying system that manages liquid and solid waste, something rare in the market. The company states that the station performs a complete cleaning with hot water at 60 ° C and an automatic drying to keep the equipment ready. It also offers the possibility of direct connection to the water network and the drain, which would eliminate manual deposits. In addition, the ecosystem is committed to integration with Matter and Homekit, and a modular design that will allow future extensions. As we say, the TR1 has been presented in IFA 2025, but its future is far from assured. Xlean states that he will soon launch a Kickstarter campaign To bring it to the global market, a habitual strategy between startups that seek financing and validation before producing on a large scale. Promises are ambitious, however, there are important unknowns, from their real autonomy to the cost of consumables and the reliability of updates. Everything will depend on how the public responds to this first test of interest. At the moment, the company has not revealed the price of the device. Images | Xlean In Xataka | One in two vacuum robots is Chinese. It is the cleanest invasion in history

Dreame has presented washing machines, refrigerators and even ovens. The vacuum brand wants to become a home giant

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If we look at Dreame’s catalog we will see vacuum cleanerssome Robot cleaninga hair dryer or water dispensers, but above all vacuum cleaners. That has just changed. There is a trend of Chinese brands entering the world of large appliances and in Dreame they seem to have said “hold me the cubata” because They just entered fifteen new home categoriesincluding large appliance. Thus, suddenly. How many appliances have Dreame presented? Yeah Washing machines, refrigerators, air conditioners, dishwasher, ovens … of everything. Dreame comes with a very ambitious home bet. Let’s see what everything they have presented: Audiovisual DREAME AURA MINI LED 4K TV S100 Dreame opens on audiovisual devices with DREAME AURA MINI LED 4K TV S100, a TV which stands out for the integration of more powerful speakers that, according to Dreame, is like having an integrated sound bar. There are also projectors, specifically three, all laptops. The Triple Laser Portable Projector T3 stands out for being able to become a screen of up to 100 inches with a very short run. They also have the T2 model that has a battery that lasts up to 2 hours and the T1, the most modest of the three. Within this category we also have the X4000 series monitor and the Home Cinema System Pano 5.1.2ch composed of twelve speakers, including sound bar and Subwoofer. Large appliances Tri-Drum Washer washing machine with three drums. PS: I love her. Xiaomi recently presented its range of large appliances And we already seemed ambitious, but Dreame goes even further. In the clothing washing section we have the L9 washing machine and dryer set, the Slimher washing machine, a mini washing machine and the craziest of all: A washer with three separate drums so that we can wash loose garments. DREAME Z-FERE refrigerator They have also presented not one, but two double door refrigerators, the Z-Fresh and Fizz Fresh. The two have A technology that reduces oxygen in the vegetable compartment To last longer. The Fizz Fresh also serves you water with fresh gas. I could not miss a dishwasher, the Z6000 that in addition to washing the dishes, the dry ones. There is even more. Two ovens, the Z6000Pro and Z6000 Steam-Boost, and two Airfryer, the Tasti AF30 and the Tasti DZ30, with double compartment. All ovens and airfryers have steam function so that the food is juicy and at the same time crispy. Air conditioning and others Dreame enters the air conditioning with the X-Wind, an air with a classic format, but with a dark gray design that does not go unnoticed. The most curious model is the Z Wind, a kind of tower that is attached to a corner, both vertically and horizontally. Although they already had some models in their offer, Dreame opens two new air purifiers, one of them with a humidifier function included. We also have a Organic garbage cube that adjusts the temperaturemoisture and avoid bad smells. Finally there is space for Home With home security cameras, smart locks, LED strips and connected bulbs. A blow to the table: here we are I do not remember a deployment of products as large as Dreame has just done in Ifa. We do not know how many of these products will arrive in Spainbut we talk about a brand that It began to be known in 2022 For selling vacuum cleaners in Amazon and suddenly sells dishwasher, ovens, washing machines and even air conditioners. A blow to the table. In addition to expanding their products, they have announced that by the end of the year They will open physical stores In several European cities, among which is Madrid. The truth is that Dreame has made a hole in the Spanish market in a short time and we can already find its products in most large areas. We will see how this bet comes out, but of course they are serious. Images | DREame In Xataka | A Chinese company that you do not know manufactures 35% of all microwaves in the world. Probably yours too

Some astronomers analyzed the “Big Bang sound.” Now they believe that the Earth is in a vacuum of 2,000 million light years

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Cosmology has a huge problem. It is known as hubble tension and suggests that the nearby universe is expanding faster than the distant and primitive universe He is telling us. Something does not fit. Now, a disturbing study offers a solution. The big problem of cosmology. Hubble tension is One of the biggest headaches of modern physics. On the one hand, we have the measurements of the cosmic microwave background (CMB), the oldest light in the universe. When applying the standard cosmological model (LBDACDM), these observations show a 67.4 km/s/mpc hubble constant. On the other hand, when The expansion of the universe is measured Using nearby objects such as standard candles (a type of supernova), a significantly higher value is obtained: about 73 km/s/mpc. This difference, that the most recent data places in a tension of more than 5Sigma (a level that in particle physics is considered a discovery), refuses to disappear. A disturbing explanation. A new study Prepublished in Arxiv proposes a solution as elegant as depressing. That the discrepancy is not in our measurements, but in our location. According to Indranil Cosmologists Banik and Vasileios Kalaitzidis, we could be living in the center of a gigantic cosmic vacuum, a “bubble” of 2,000 million light years in diameter with a density 20% lower than the universal average. The test, they affirm, It is in the “Big Bang sound”. A local vacuum. The idea of the local vacuum is not new: it is known as the empty KBC (Keenan-Barger-Cowie, in honor of the astronomers who proposed the idea based on the galaxies count). If our galaxy, the Milky Way, were in a region with less matter than normal, the severity of the surrounding, densest areas, would “throw away” out. This effect, added to the general expansion of the universe, would cause nearby galaxies to move away from us faster than normal. “This would give the appearance of a faster local expansion rate,” explains Indranil Banik, of the New Research. The Hubble tension problem would thus become a local phenomenon, without the need to revolutionize the entire cosmological model. The sound of the Big Bang as proof. What the new study of Banik and Kalaitzidis contributes is a much more fundamental test based on barionic acoustic oscillations. Although we call them “the sound of the Big Bang”, they are not sound waves that we can hear. They are the traces that left the pressure waves that spread through the superdense plasma of the primitive universe. These waves were “frozen” about 380,000 years after the Big Bang and created A characteristic pattern in the distribution of matter. This pattern works as a cosmic rule of about 500 million light years in length, which astronomers use to measure the expansion of the universe to different eras. The results. The team analyzed 20 years of measurements and compared them with two scenarios: on the one hand, the homogeneous standard model, without emptiness; and on the other, the model that includes the empty KBC. The results, presented at the National Astronomy Meeting 2025 of the Astronomical Society Royal, are blunt. According to the statistical analysis of the study, the model with a local vacuum conforms to the data in a spectacularly better way. While the standard model has a 3.3sigma voltage with observations, vacuum models reduce it to only 1.1sigma –1.4sigma. Calmly. The researchers consider “demonstrated” that A vacuum model is about 100 million times more likely than a model without emptiness. However, it is a preliminary study, which has not yet gone through the pairs review. Previous studies set very strict limits to the existence of such an influential vacuum, concluding that it is not enough to explain the entire Hubble tension. They also propose early dark energy as a solution. But Banik’s work offers one of the strongest evidence to date that the Earth could be in a very lonely region of the universe. Image | Greg Rakozy (UNSPLASH) In Xataka | The James Webb and Hubble telescope coincide in the expansion of the universe. And physics fails to explain why

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