color

Hisense has found the key to improving the color on its 2026 Mini LED and Micro LED televisions: adding more subpixels

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One of the challenges for television manufacturers is to evolve their technologies to improve their ability to represent color, without implying an excessive increase in production costs. Hisense seems to have found the key for its 2026 televisions to improve their image quality: add one more color subpixel to its matrix of Mini LED and Micro LED panels. The brand presented at CES 2026, which is being held in Las Vegas, two advances that seek to make colors more natural and precise: Mini LED evowhich adds a fourth cyan subpixel, and the evolution of its MicroLED panels with the RGBY Micro LEDwhich incorporates a yellow subpixel to its RGB matrix. Both changes allow televisions to better reproduce the most difficult-to-achieve color nuances. RGB MiniLED evo: cyan is the new white The televisions Current Hisense MiniLEDs They are based on thousands of small LED light diodes that illuminate the screen from behind, achieving better lighting control. This improves the contrast without sacrificing the brightness of the screen, being able to turn off more areas of the screen to achieve deeper blacks. In 2025, Hisense put on the table an evolution of that technology with RGB MiniLED, in which the white or blue mini LEDs were replaced by three RGB diodes (red, green and blue) to directly generate colorsinstead of using color filters as traditional LCD screens did. The MiniLED evo that Hisense has just presented goes one step further in this development and adds a fourth cyan subpixel to that RGB matrix. This intermediate color between blue and green helps reproduce complex tones that were previously only approximated by combining the three subpixels. Hisense’s solution is an adaptation to LED of what LG had been doing in its WRGB OLED panelsin which a white subpixel was added to improve brightness, although in this version the aim is to increase the color volume. Clear skies, water or certain skin tones look more natural and with softer gradients. In addition, local light management (local dimming) becomes more precise, reducing halos and poorly lit areas in scenes with high contrast. The introduction of this fourth subpixel increases the effective color gamut, achieving 110% coverage of the BT.2020 color space used as the professional cinema standard. Since, in essence it is an evolution (not a revolution) of the MiniLED RGB system that it already implemented last year in its top model, this new technology will be deployed to models ranging from 55 to 100 inches in a new UR9 and UR8 family, while the new MiniLED RGB evo panels will be limited to the 116UXS (which, as its name indicates, has a diagonal of 116 inches) as an evolution to the MiniLED RGB model of 2025. MicroLED RGB: three colors are no longer enough Along the same lines, Hisense has also presented improvements to the Micro LED RGB panels that it already presented in 2025 for its most premium range. As was the case with the Mini LEDs, the brand is committed to separating the color from the point of emission, replacing the blue or white diodes with three diodes that directly emit the RGB matrix. This is something that Samsung also has launched in its plans for 2026. However, in the variant presented by Hisense for 2026, a fourth yellow subpixel has been added along with red, green and blue, leaving an RGBY configuration. The yellow subpixel fills a critical gap in the spectrum that the three traditional colors cannot accurately cover. This addition improves the reproduction of warm tones and complex light transitions, such as those presented by skin, golden lights or sunsets, with softer and more natural gradients. For the moment, the new RGBY Micro LED is reserved for the 163MX RGBY model of no less than 163 incheswhich integrates millions of subpixels managed by a new processor and algorithms that balance brightness and color. The combination of greater precision in the backlighting provided by much smaller diodes and the incorporation of the yellow subpixel allows 100% of the BT.2020 color space to be achieved, bringing the quality of giant screens closer to those used in professional production. It’s a new era for LED The evolution that Hisense has presented is nothing more than confirmation that, although OLED represents an “affordable” way to obtain the best image quality, LED still has a lot to say in terms of quality and color volume. In the MiniLED evo, the addition of the fourth cyan subpixel allows intermediate colors between blue and green to look more natural, while in the RGBY microLED, the yellow subpixel improves the fidelity of warm and complex tones. In practice, these improvements translate into more consistent, natural and detailed images, without depending only on brightness or resolution. Hisense’s proposal for 2026 is presented more as an evolution in qualitative terms than as a revolution. It is a sign that the future of Mini LEDs and Micro LED involves optimizing the way colors are generated, using additional subpixels and controlling light emission with better processors and more refined algorithms. In Xataka | China is devouring the television market. So much so that Panasonic is considering abandoning it Image | Hisense

The color of your Ethernet cable is not for decoration: it is a key visual language

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We all have Ethernet cables at home and they are probably different colors. In my case, I have several yellows, but there are also red, blue, green… What many people do not know (myself included) is that colors are not a whim of the manufacturers, but rather They answer a practical question. A question of organization Contrary to what we might expect, the exterior color of an Ethernet cable will not tell us anything about its performance. If what you want is know the category of the cable (that is, the speed it supports), they all come with this detail printed on the cable itself. The color does not tell us if the cable is more or less fast, it is for something totally different: being able to distinguish and organize them better. In Xataka How to convert the antenna sockets in your house into an Ethernet network to bring Internet from one room to another. In a home it doesn’t make as much sense, but imagine a server or data center where Ethernet cables number in the hundreds or even thousands; If all the cables were the same color it would be crazy to identify them. Colors help manage large networks. Ethernet cable colors Although there are some guidelines on cable colors from organizations such as the IEEEand ANSIthere really is no universal color code for Ethernet cables. The meaning of each color can vary depending on the country, the sector and even the company. However, there are many similarities and widely used color patterns. These are the most common uses: Grey/white/black: These are the colors that we usually find for general home and office use. We see them in most routers. Blue: They are the most used cable for general network connections, servers or workstations. Yellow: They are usually PoE (Power over Ethernet) cables, that is, they provide power as well as connectivity. They can be used in IP cameras and VoIP phones. Green: to directly connect two devices such as computers, without an intermediate device. Red: They are usually reserved for critical connections such as security or emergency systems. orange and purple: They are less common colors. According to Cables and Kitsare used to connect systems that require a specific connection not compatible with the usual standards, for example to connect older systems that do not use Ethernet with newer ones that do. {“videoId”:”x8coltz”,”autoplay”:false,”title”:”ALL ABOUT ETHERNET CABLES_ TYPES, CHARACTERISTICS AND WHICH TO CHOOSE”, “tag”:”webedia-prod”, “duration”:”211″} As we said, the color of the cable does not determine its performance, but rather has a practical purpose for those who manage very large networks. With colors, maintenance time is shortened and serious failures such as the disconnection of critical systems are avoided. At home it can also be useful if you have several devices connected to your router and you want to clearly see which is which. Image |PxHere In Xataka | The submarine cables belonged to the teleoperators, and now the big technology companies are controlling them (function() { window._JS_MODULES = window._JS_MODULES || {}; var headElement = document.getElementsByTagName(‘head’)(0); if (_JS_MODULES.instagram) { var instagramScript = document.createElement(‘script’); instagramScript.src=”https://platform.instagram.com/en_US/embeds.js”; instagramScript.async = true; instagramScript.defer = true; headElement.appendChild(instagramScript); – The news The color of your Ethernet cable is not for decoration: it is a key visual language was originally published in Xataka by Amparo Babiloni .

There are green, orange and even purple USB ports. The color rule that indicates your generation is extinct

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There was a time when everything was easier. If the USB port was white, it was slow; if it was black, it was standard; and if it was blue, it was the fastest. That rule that helped us Easily identify USB-A generations It’s gone. The arrival of new standards, charging functions and brand marketing has meant that today we find a wide range of green, orange and purple ports that no longer mean much. Image: StorageReview The original color code. The current chaos, as we explain in our guide to the USB standardit was not planned. The USB-IF organization tried to standardize it: white corresponds to USB 1.x, black for USB 2.0 (480 Mbps), and blue (or turquoise) for fast USB 3.0 (5 Gbps). First confusion. That is a product of the charging ports: the first problem came when colors began to be used to indicate power functions, not just data transmission. This is how the yellow, orange or red ports arrived. These usually indicate an “Always on” or “Sleep & Charge” function, which means that the port continues to provide power even when the computer is turned off or in sleep. More speed, more colors. To differentiate USB 3.1 (10 Gbps) and 3.2 (20 Gbps), the standard suggested the color turquoise blue, or failing that, red. Here the system began to leak. And the final blow came from marketing. A purple USB cable for a Huawei device indicates that it supports SuperCharge, its fast charging technology. Image: Reddit The rule became extinct completely when the brands decided use colors as corporate identity. The most famous case is that of Razer, which dyes its ports a characteristic lime green. Likewise, if you see a purple port, it’s probably from Huawei. The Chinese manufacturer uses them to identify its devices compatible with SuperCharge (its fast charging system), although technically it is still a USB 3.1 port. Chaos also in names. If there is already a mess with the colors, there is also a mess with the names: USB-IF itself has contributed by renaming the standards. USB 3.0 was renamed “USB 3.1 Gen 1” and is now “USB 3.2 Gen 1.” In parallel, USB 3.1 is now “USB 3.2 Gen 2”. This makes it almost impossible for a user to know what they are buying without looking at the fine print, a mess that the Wi-Fi Alliance solved much more elegantly. with standards such as Wi-Fi 5, 6 or the most recent Wi-Fi 7. The real culprit: USB-C. The final nail in the color coding coffin is the USB-C connector. It’s just a reversible connector, but what’s inside is chaos: the same USB-C port can be a slow USB 2.0, a USB 3.2 or a very fast Thunderbolt 4. The only way to differentiate them is to look for the lightning bolt logo that characterized Apple. Or read the device’s spec sheet because color, unfortunately, no longer means anything. Image | Xataka In Xataka | How to prepare a USB to use it on your mobile phone, tablet or Smart TV and expand its memory

plasma in a nuclear fusion reactor, in color and at 16,000 fps

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Seeing the inside of a nuclear fusion reactor is, for obvious reasons, complicated. We are talking about temperatures of millions of degrees Celsius, hotter than the core of the Sun. However, the British company Tokamak Energy has just given us unprecedented images of what is happening inside its ST40 spherical reactor: a video in full color and at the incredible speed of 16,000 frames per second. An unprecedented ballet of colors. What we are seeing in the video is, in essence, the choreography of the elements within the tokamak. The ST40, like most of these reactors, uses hydrogen isotopes (deuterium in this case) as fuel. When this gas turns into plasma, it emits a characteristic pink light, which dominates the scene. But the interesting part begins when researchers introduce lithium, which glows red. And no, this is not just a visual spectacle. Every color, every bright filament we see in these images, is a gold mine of information that is helping scientists solve one of the biggest challenges on the long road to commercial fusion energy: how to tame plasma so that it does not degrade reactor materials. What exactly are we seeing? In the images, we see how small granules of lithium are injected into the reactor chamber. Upon entering the outer, colder areas of the plasma, the neutral lithium is excited and emits an intense crimson red light. As they penetrate the hottest and densest regions, lithium atoms lose an electron, become ionized (becoming lithium ions), and begin to glow greenish. Once ionized, lithium no longer moves freely. It is forced to follow the invisible, but very powerful magnetic field lines that confine the plasma. Those green filaments that we see dancing in the video are, literally, the lithium drawing the magnetic cage of the reactor. What is all this for? The lithium acts as a protective shield for the reactor. Recording what happens in color is not easy, but it helps identify whether the impurities that Totakak Energy is introducing into the reactor radiate in the expected place. And if the lithium powders penetrate to the core of the plasma. This experiment is part of research into a mode of operation called the “X-point radiator” (XPR) that uses elements such as lithium so that the edge of the plasma radiates and loses a large amount of heat before touching the reactor walls. It is a protective “atmosphere” that cools the plasma just at the last moment, reducing component wear without sacrificing core performance. The advancement of Tokamak Energy. This approach is the centerpiece of the Dell ST40 upgrade program, which has received funding from the US and UK energy departments. The goal is to coat all the components that face the plasma with lithium, a technique that has already been demonstrated in other laboratories, such as Princeton, to improve plasma performance. This type of visual diagnostics complement the incredibly complex systems that are being installed in reactors such as the JT-60SA in Japan, the most advanced tokamak in the world currentlywhich uses lasers to measure plasma temperature and density indirectly. A global career. While colossal and institutional projects such as ITER They mark a long-term pathwhich plans its first deuterium-tritium experiments by 2039, more agile companies like Tokamak Energy are exploring new designs and technologies, such as spherical tokamaks and high-temperature superconducting magnets, to accelerate the arrival of commercial fusion. The closure of the historic JET reactor in the United Kingdom, who said goodbye breaking an energy recordmarked the end of an era, but its legacy is the foundation on which all these new advances are built. This new window into the heart of plasma is not only visually impressive. It is a small step that brings us a little closer to the goal of replicating the energy of stars on Earth. Nuclear fusion just got a lot more colorful, and that’s great news. Image | Tokamak Energy In Xataka | While the West still waits for fusion energy, China has found a shortcut

If your intuition tells you that “more intense color are richer,” science has good news for you

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Cardiovascular diseases follow being the main cause of death in the worldbut this scourge can begin to control thanks to the most colorful foods of the supermarket. A new and thorough review study systematic published in Nutrients has put the focus on carotenoidsthe Natural pigments that give their vibrant color to fruits and vegetables such as tomatoes, carrots or spinach. What are exactly carotenoids. Carotenoids are a group of more than 600 compounds that plants, algae and some bacteria produce naturally. They are responsible for the red, orange and yellow tones of many foods. Among the best known we can highlight the lycopene that is very present the tomatoes, the beta-carotene that is in carrots (and can get to give us an orange color on the skin) and the Lutein o Zeaxantine that are in green foods. Components of great importance for humans. Humans cannot produce these carotenoids, as with some vitaminsso we depend on the diet to obtain them. But his fame is not free: they act as Powerful antioxidantsneutralizing the free radicals they produce Oxidative stress and ends up damaging the cells and the genetic material itself. In addition, the study highlights its anti -inflammatory properties or its ability to improve the cholesterol profile by reducing oxidation of ‘bad’ or LDL cholesterol. This is something very relevant, then The oxidation of LDL is the trigger to form the atheroma plates In blood vessels, which is a key risk factor for Atherosclerosis. That is, the hardening and obstruction of the main arteries of the organism that can finally cause a heart attack. Evidence on the table: real food vs. supplements. The researchers, led by a team from the European University of the Atlantic in Santander, analyzed 38 of the most relevant studies published in the last decade to answer a key question: does the carotenoid intake prevents cardiovascular diseases? But beyond this, they also wondered if The supplements that can be found work or a varied diet is better. Having them in blood is associated with a healthier heart. The observational studies of cohorts that followed large groups of people for years, are quite consistent: those who had higher concentrations of serum carotenoids presented, in general, a lower risk of cardiovascular disease. Specifically, there was an inverse correlation with hypertension, the rigidity of the arteries and several inflammation markers. This suggests that a usual consumption of rich foods in these compounds is a good cardiovascular health indicator. Do carotene supplements work? This is where the thing is complicated. The studies that gave the participants carotenoid capsules showed results that were often contradictory. On the one hand, when the lycopene was given in supplement, he recorded an improvement in the endothelial function of patients who already had cardiovascular disease, but not in healthy volunteers. In the case of lutein, a triglyceridesand with beta -carotene the significant effect was null. This is something that surprised the researchers, but even more they were amazed to see that by providing several carotenoids together the effect was more effective than with the use of an isolated carotene. This already gives us an important clue. Real food wins the game. The clearest verdict came from dietary intervention studies. When participants were provided with foods such as tomato or carrot juices, or they were indicated to increase the consumption of fruits and vegetables in the diet, the benefits were more notable and consistent than with the pills. Interventions with tomato juice in lycopene managed to reduce key inflammatory molecules in atherosclerosis, while increasing the consumption of fruits and vegetables improved antioxidant capacity of “good” or HDL cholesterol. In this way, scientific evidence suggests that carotenoids have to be consumed in ‘groups’ to have a greater effect. The conclusion is clear: we must not replace the vegetable. On many occasions we try to supplement what we do not like with herbalist treatments. This is not ideal in this case, since the cardioprotective effect of the carotenoid seems to be amplified with other compounds that the original food such as fiber or vitamins presents. But it also adds to the need to complement it with other fruits and vegetables. And you don’t have to become obsessed with tomato and carrot in this regard. There are a lot of fruits and vegetables that can be included in the diet in a varied way so as not to end ‘hating it: peppers, pumpkin, broccoli or kale are some of the examples we find. Time is vital for your protection. As in medicine, the effects are not usually immediate when a change in the habits of a patient is made. In this case, long -term observational studies show the strongest results, that is, It is the sustained habit of consuming these foods What really protects the heart. A good diet is fundamental. This conclusion is no secret to us, since there are many studies that point to important benefits of following a good diet. For example, the Mediterranean diet It can help us stop the aging of the brain. Although it is also a reality that there are many diets such as potato diet either Miracle diets In general, they are a pathology to face it in the absence of nutrients or a subsequent rebound effect. Images | Claudio Schwarz Kenny Eliason In Xataka | We have just discovered one of the best kept secrets of the Mediterranean diet: its compounds

We have centuries studying the different types of clouds. What tells us the shape and color of these atmospheric phenomena

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The atmosphere of the earth hides about 12.9 billion liters of watermore or less. And a good part of that water is in huge clouds that we see fly over our heads as if nothing. These huge atmospheric objects captivate our imagination in childhood, but we often stop thinking about them during our day. Knowing them can help us pay attention to them. What is a cloud The clouds are essentially water, a lot of water. Steam -shaped water, small drops and Even small ice crystals that remain in suspension in the atmosphere. This water becomes visible when condensed, generating a contrast with the blue of the sky. The clouds circulate in the atmosphere dragged through the differences in pressure and the wind that they generate. They also move as a result of the land rotation itself, since the solid surface of the earth does not rotate in the same way as the atmosphere. The clouds can be of very different types that we classify according to certain conditions, such as the height to which they occur. For example, when the clouds are formed at surface height, we do not even usually refer to them as such, but as a fog. But the fog is still a type of cloud. How a cloud is formed The atmosphere keeps water vapor, small H2O molecules that are mixed with the other gases that make up the atmosphere. The amount of water that the atmosphere can store in the form of gas depends on factors such as temperature and pressure. There is a threshold from which the atmosphere Water “sat”and that is when this water can begin to accumulate. This accumulation is good when the amount of water increases or because atmospheric conditions make the threshold reduce, and implies that the molecules go from being a gas in suspension to form microscopic water drops. When these drops, still in suspension, accumulate, the clouds are formed. Types of clouds and characteristics The clouds are usually classified according to two fundamental characteristics: Your altitude in the atmosphere and its appearance. According to its altitude, three types of clouds are distinguished (with an additional case), groups that the State Meteorology Agency (Aemet) call of “high floor” (the highest altitude), of “middle floor” (intermediate altitude) and those of low floor (those of minor antura), to which we must add the clouds of vertical development. There are different terms with which referring to these clouds, for example we can speak sympleously of high, medium and low clouds. High floor clouds The high -floor clouds are those that are at heights between 5 and 13 kilometers on the ground, and include cirro, circoum and cirrostrates. Cirrus: According to Explain Aemetcirrus are clouds of the high floor, separate and “in the form of white and delicate filaments, or banks or narrow, white or almost white bands.” Cirrus. Piccolonamek, Commons. CIRCOUM: It is a thin layer of clouds, white and shadowless, “very small elements” in the form of grains or undulations. Circummers. King of Hearts. CIRROSTRATE: These clouds for their part acquire the appearance of a “cloudy veil”, also transparent and rather white, only that this type of clouds covers the sky, totally or partially, producing “halos.” Cirros and its characteristic halo. SeanMack Medium floor clouds The clouds of the middle floor are located at heights between two and seven kilometers, and can also be of various types: altocumulos, high, and nimbostratos. Altocúmulos: The altocumulus are already located at medium heights. It is a bank or cloud layer that can be white or gray. Its structure can varybeing formed by “tiles”, “rounded masses” or “rollers”, structures that, in turn, can be “partially fibrous or diffuse,” Explain Aemet. Altocumulos. Bidgee Altostrates: This layer of clouds usually has gray or bluish colors, it can also have a fibrous appearance, it is characterized by totally or partially covering the sky allowing to distinguish vaguely, but unlike cirrostrates, it does not produce halos. Altostrates. Famartin. Nimbostrates: These clouds form an already dark gray layer, with “appearance veiled by rainfall or snow precipitation”, rainfall that usually falls from it more or less continuously. Nimbostratos. Famartin. Low floor clouds The low floor clouds are those located at heights of up to two kilometers and can be of two types: strata and strata. Stratocumulous: Again clouds that can acquire a gray color, or, on other occasions, whitish with dark parts. Stratocumulous. DjClimber. Strata: Generally gray clouds, uniform base (relatively), which can produce drizzle. The halos in this cloud only occur when very low temperatures are reached. Strata. Couch-Scratching-Cats. Vertical Development Clouds Finally, vertical development clouds can also be of two types: clusters and cumulonimbos. Clusters: These are clouds that arise in isolation, dense and well -defined contours. These clouds develop vertically with the form of “protuberances”, “domes” or “towers.” Clusters. Piccolonamek. Cumulonimbos: Finally, the cumulonimbos are clouds that Aemet describes as “Amazacotadas and Dense”, of vertical development “in the form of a mountain or huge towers.” On his cusp, a top “smooth, fibrous or striated.” Cumulonimbos. NOAA/AOML/Hurricane Research Division. How much water is there in a cloud? The clouds are ethereal objects, “cotton” and with a density low enough to keep afloat at a certain height in the atmosphere. However, they are also huge, so the amount of water they can house is enormous. A few years ago, a group of researchers proposed answer the question How much water is in a cloud. The truth is that the answer can vary greatly since the volume of these atmospheric phenomena can be the most diverse. However, the team made an estimate based on a 0.5 grams of water per cubic meter of cloud. The team took as reference an average cluster, an cloud that would have a cubic shape and a kilometer long. The result: this imaginary cloud would contain about 500 tons of water. Larger clouds, of course, would be able to house an even greater amount of water. In Xataka | “We are changing the clouds”: … Read more

BOOX GO 7 Y GO COLOR 7 (2nd generation), characteristics, price and technical file

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Not everything in the world of readers of Electronic books is Kindle, Kobo either Remarkable. For years, Boox has been stepping hard in this segment, with proposals as interesting as An e-reader with surface soul And even another integrated into a mobile phone. The Chinese company has decided to close April by renewing its GO 7 series. We talk about the GO color 7, which premieres second generation, and the new Go 7, which is committed to a monochromatic screen. Both share an elegant and minimalist design. Two readers where what stands out is writing The great novelty of this generation is the capacity for writing, which makes these devices more than simple readers: they want to occupy an active role in creativity. Both are compatible with the New Box Inksense pencilwhich is sold separately. We will have to see how they behave on a day -to -day basis, but the idea is clear: take notes, make sketches, underline texts and organize ideas directly on the screen. It is not the first time that Boox is committed to digital writing, but here he redoubles the bet. As for visual experience, the GO color 7 (2nd generation) incorporates an Eink screen 7 -inch kaleidowith 150 ppp color and monochromatic content at 300 PPP, ideal for those who seek the best of both worlds: nuances of color without giving up the sharpness. Go 7, on the other hand, mounts a monochromatic screen of the same dimensions, based on letter 1300 technology, also with 300 PPP resolution. Both include adjustable frontal light to adapt to any reading environment. As can be seen in the images, the two models have physical buttons On the right side, discreet and well integrated, designed to turn page or move without playing the screen. The frame is fine, but enough to hold them firmly. The general sensation is lightness and precision. Both devices share a good part of the technical file: 190 grams of weight, 4 GB of RAM and 64 GB of expandable internal storage using microSD. They work with Android 13 and offer full access to Google Play, which greatly expands their possibilities. Price and availability of Boox Go 7 and Go Color 7 (2nd Generation) The new Box Go 7 and Go Color 7 (2nd Generation) They will be available from Friday In Spain through the official online store. For now, we are waiting to know their official prices in the country. Images | BOOX In Xataka | I’ve been reading books on the mobile for years. These are the apps and the advice I recommend to start doing it

Only five people in the world have seen this new color. The trick: laser in the retina

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It is estimated that the human being is able to see around ten million different colors, According to the American Academy of Ophthalmology. This is what we know as a visible spectrum, that is, those wavelengths to which Our eyes respond. Although there are exceptions, we all see more or less the same, but since last Friday there are five people in the world capable of seeing a color that the rest of mortals cannot see. The key: very precise laser surgery to stimulate concrete retin cells. Context: How do we see? As we said before, our eyes see the visible spectrum, that is, the wavelengths between 380 and 750 nanometers. Below the 380 we have ultraviolet light and above 750 infrared. This is possible thanks to some cells located in our retinas called cones, photoreceptors that react to concrete wavelengths and send signals to our brain, which is responsible for processing everything: Cones S: short wavelengths, that is, the blue. Cones M: Medium wavelengths, that is, the greens. Cones l: long wavelengths, that is, the red ones. S, M, L and all together. The cones do not react only to a concrete and exact wavelength, but their ranges overlap. The M cones will react to the longest blue wavelengths, as well as the S s will react to the shortest green zone lengths. According to Ren NG, Professor of Electrical Engineering and Computing Sciences of the University of California, “there is no light in the world capable of activating only Mons M. If they are activated, be sure that one or two more types will be activated too.” The experiment. In the above is the key to the experience whose results were published last Friday in the Science Advance Magazine. What if we manage to stimulate concrete cones alone and exclusively? That was what the researchers from the University of California did: map the retina, look for cones m and excite them with small doses of light, laser. It is a technique baptized as Oz, in honor of ‘The Oz Wizard‘And the Emerald city. This is the closest representation to the “Olo” color that can be made on a screen | Image: Xataka OLO. After undergoing the experiment, the study participants were able to see a new color they called “Olo.” Of the five participants, three of them were co-authors of the study (the aforementioned Ren NG was among them) and two were colleagues from the University of Washington. This “Olo” is defined as “a bluish green with unprecedented saturation.” According to NG, the closest way to represent “Olo” on a screen is with the Hexadecimal #00FFCC, but with saturation that we cannot understand why, literally, our brain has never received that signal. The closest way to represent “OLO” on a screen is with the Hexadecimal #00FFCC How to verify it? To verify that all participants saw an alien and hidden color to the rest of mortals, made chromatic correspondence experiments comparing “Olo” with a bluish green laser that saturated or unraveled by adding white light. Everyone agreed that adding white light to “Olo”, Ergo unleashing it, the color of the laser was achieved, thus confirming that “Olo” is outside the visible spectrum of the human eye. And for what? It is an excellent question. The reality is that, for the moment, it does not have a practical utility beyond demonstrating that the procedure works. In Scientific American They collect the testimony of the principal researcher and his team, which imagines some screens capable of scanning retinas and broadcasting images and videos in impossible colors. However, it may make more sense in other lands. For example, allow the blind people to see certain colors or “simulate”, in quotes, how you see an animal in our own eyes. The problem, of course, is that the Oz effect is temporary, not permanent. Cover image | Amanda Dalbjörn In Xataka | All the colors you see on the web are wrong. And your browser has the fault

We thought they were the red color in a galaxy he indicated that he was dead. There are those who believe we are wrong

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A simple and useful way of knowing if a galaxy is old or if on the contrary it is full of new star formations is in its color. The rule is simple: the most reddish galaxies are usually older; The most bluish, young. Young and red. Now a researcher at the University of Missouri has raised a third waythe possible existence of reddish but still alive colored galaxies, that is, in the process of forming new stars. Among other implications, this could mean that our universe forms even more stars than we thought. Red or blue. Galaxies are usually categorized according to the color of their stars. Blue stars usually shine with more force for less time, so when the blue tones predominate we know that new stars are still forming. The stars with warmer tones resist more so when a galaxy dies, that is, when it stops creating new stars, these more reddish stars are what remains. However, there is something that escapes us in this hypothesis. According to Charles Steinhardt, author of the new study, this model raises certain inconsistencies, for example in the ratios between stellar masses and masses of black holes, and enters the initial mass functions of red and blue galaxies. What if they are not dead? In An article Posted in the magazine The Astrophysical JournalSteinhardt raises the existence of a different category, red and young galaxies. The key would be in the fact that in these galaxies, the stars formed would be of less dough and that therefore, also the youngest would shine with reddish tones. “The red -star formants mainly produce little dough stars, which would make them look red despite the permanent births of stars,” Explain in a press release Steinhardt. Birth and fusion. One of the keys to this hypothesis is in the post-stallid galaxies (Post-Starburst). The galaxies can go from being young stars producing to lifeless galaxies in two ways. The first, through a slow and natural evolution; the second, after a burst of stars (Starburst). When two galaxies collide, the subject of both meets, accelerating the accumulation process that gives rise to new stars. This makes the galaxy go through a stage of rapid stars formation, a stage that leaves the galaxy without fuel. In his hypothesis, Steinhardt raises the possibility, that some of these galaxies have been forming red and small stars from the beginning, and not being the result of a burst. This possibility would imply, Explainhave to reclassify some of the galaxies we know. More stars. The new hypothesis postulates that red galaxies continue to create new stars which in turn implies that our universe produces even more stars than those we believed. “The existence of these galaxies can mean that the universe has formed a significantly greater number of stars than before,” Steinhardt defends. The galaxies are complex formations and we may still notice important details about them. Details such as the details of their life cycles, adds the researcher. In Xataka | The James Webb has found a galaxy when the universe was 330 million years old. Hide an entire enigma Image | Este/Hubble & Nasa, J. Kalirai, A. Milone

Although the Kindle Paperwhite is offer again, I prefer this other color screen alternative that costs the same

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The Kindleespecially the cheapest ones, are the most popular ereaders that are currently in stores, but they are not the only options we have, they are not even the cheapest or those that have better value for money. Now the Kindle Paperwhite He has fallen again on Amazon, but for the 149 euros What costs I prefer the Kobo Clara Color. * Some price may have changed from the last review An ereader with excellent value for money He Kobo Clara Color It is, so to speak, an evolution of Kobo Clara 2Ebut with certain additions to improve reading in some formats. The main novelty of this model is that it comes with a Color screen (We also find it in the Kindle, but in the colorsooft model it costs 259 euros), something that can be interesting to read comics or magazines, always taking into account that The screen is 6 inches. In this way, it is an ereader that is ideal to use both at home and outside it; in fact, The format is perfect for saving it in a backpack or in a bag, it even fits in a bandolera or fancier “I always take it in the Tomoc Compact X-Pac-. On the other hand, it does not include physical buttons to pass the pages, everything is done through the touch screen. As for other specifications, Kobo Clara Colour comes with adjustable frontal lighting, storage of 16 GB to save many electronic books, is water resistant and offers an autonomy of weeks of use. In addition, it allows to play audiobooks and has the Pocket function to save online items and read them when we do not have an Internet connection. You may also interest you Case for Kobo Clara Color * Some price may have changed from the last review Case for Kobo Clara Color * Some price may have changed from the last review Some of the links of this article are affiliated and can report a benefit to Xataka. In case of non -availability, offers may vary. Image | Kobo In Xataka | Kindle Colorsooft vs Kobo Libra Color. What ereader with color screen chose according to your tastes and needs In Xataka | Best electronic books. Which to buy and nine recommended models

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