The world’s largest iceberg was about to turn 40. I was already lasting too much for experts

Almost four decades after detaching themselves from Antarctica, the iceberg colossal known as A23aa Giant of one billion tonshe is fighting his final battle against the ocean. After an epic trip and decades stranded at the bottom of the sea, whatever The world’s largest iceberg They are breaking into pieces, and scientists predict that it could disappear completely in the coming weeks. The history of Iceberg. The A23A detached from the Philchner-Ronne Ice Platform of Antarctica in 1986 and was embedded at the bottom of the Weddell Sea for more than 30 years. A great formation that undoubtedly matters by overcoming the surface of the Community of Madrid twice or doubling the London Metropolitan Area. But it was not until 2020 when his epic trip beganbeing dragged by the ‘Icerbergs Highway’ to the South Atlantic. And although it was stranded for a while, He started his journey again in 2024. A threatening size. After its journey, earlier this year its immense size came to threaten the food areas of the penguins on a remote island of the South Atlantic, but the iceberg continued on its way. Now, according to an analysis of the Agite France-Presse and taking as a source the images of the satellite of the European Copernicus programthe A23a It has less than half of its original sizealthough it remains a large mass of 1,770 square kilometers. A dramatic disintegration. In recent weeks, huge pieces of ice, some of up to 400 square kilometers, have detached themselves from A23a. In addition, the sea around it is full of smaller fragments, many of which are large enough to suppose a risk for navigation. Andrew Meijers, physical oceographic of the British Antartic Survey (BAS)has told AFP that the iceberg is “disintegrating quite dramatic” as it moves north. “I would say that it is in the process of disappearance … Basically it is rotting below. Water is too warm for it to be maintained. It is constantly melting,” says Meijers. The scientist expects the A23a not to be “identifiable in a few weeks.” It has gone too far. The route that this iceberg has had, the truth is that it has surprised the scientific community. “Most icebergs do not get so far. This is very large, so it has lasted more and has come further than others,” adds Meijers. Climate change as a backdrop. Although Icebergs detachment is a natural process That we have documented, scientists affirm that the rhythm they are being lost is a problem. And behind this acceleration in the detachment is man and climate change. This is something that we have already seen as a serious problem in the ‘alley of the icerbergs’ where there are a greater number of these formations, further altering ecosystems in its path. Other icebergs have had the same fate. In the pastother specimens, such as A-68awith an extension similar to the area of ​​the province of Alicante, he broke down from the Ice Platform Larsen C in July 2017 and began a 2,500 km route that took him north. After four years of travel, he ended up disintegrating himself on the island of San Pedro, having previously generated great expectation from scientists. In this case, scientists could see how the ways of oceanic water are stratified were altered. In this way, there was an effect of displacement towards the depths of particular matter and phytoplankton, which alters the redistribution of nutrients in the water. Phytoplankton is the basis of tens of species, and right now It is found in great concentrations in Greenland by melbergs melts. And although it can be positive for marine life and Atmospheric co -capturethere is a paste: changes in temperature, chemical composition and salinity can alter ecosystems. Effects of A23a. A23A disintegration may have beneficial effects, according to researchers. And it is that the fact of releasing nutrients to the ocean can favor biological productivity. But above all, negative effects stand out, since fragmentation also raises challenges for navigation and fishing in the South Atlantic, since smaller fragments are more difficult to track than the main block. In Xataka | Terranova has seen how an iceberg colossal approaches its coast. The show is surprising; The phenomenon, no

The solar panels 35 years ago are lasting so much that they have reopened the debate on the quality of the current

The solar panel manufacturers They usually offer performance guarantees of about 20-25 years, a point from which the irremediable degradation of materials significantly reduces their ability to produce energy. Or that’s what they have done to believe. Short. A new analysis of solar panels installed in Switzerland between 1987 and 1993 reveals that most follow 80% of their initial nominal power. The study is based on six photovoltaic systems in operation for more than 30 years in all types of altitudes. Research, published in the EES Solar MagazineNot only confirms that solar panels can last a lot more than 25 years, but do so with such a low degradation that invites you to review priorities: are we balancing well efficiency, cost and materials? A degradation much lower than the typical. The researchers studied thoroughly from solar panels in low altitude roofs to facilities in alpine areas. On average, the panels lost only 0.24% of power per year. It is a value significantly lower than the usual range of the crystalline silicon: 0.5 to 0.6% per year, depending on the weather. In other words, these 35 -year modules degrade much more slowly of what the industry today assumes as usual. The secret is not the climate, but the materials. The weather can make a difference. In colder alpine environments, despite receiving more radiation, the degradation of the panels is slower due to the least thermal stress. At low altitude, where the surface of the panels can reach 80 ° C, Metallic contacts can run and lose conductivity for the degradation of the encapsulant. However, the secret of these panels is their solid construction. The modules analyzed are from the family of AM55 arc models and Siemens SM55, which stand out for the quality of their materials: thicker frontal glass, high quality encapsulants, very resistant rear sheets, robust aluminum frames and crystalline silicon cells somewhat thicker than the current ones. The moral of the study. Today’s photovoltaic industry has no point of comparison with that of the early 90s. The panels are much cheaper and achieve greater efficiencies. But in return, they use thinner silicon wafers, thinner glass and lighter designs. The conclusion of the study is not that before better panels, but that manufacturing materials have a great influence on long -term performance. Although they cannot compete with the current price, betting on robust and quality materials can make the useful life of a solar panel exceed 50 years in temperate climates. Image | Ebrar Özkalay et al. In Xataka | Forget the industrial revolution: the fastest energy change in human history is happening now

These three Sihoo chairs are perfect for those looking for a comfortable and lasting option

Those who spend many hours in front of a computer, we know how really important it is to choose the chair we use well. There are options of many different types: From office models to others more versatile for home. As we say, you have to know how to choose well, although perhaps it is not as simple as it should due to the huge number of manufacturers and models that we have available. A very interesting option is the Sihoo brand, which has three very lowered chairs right now and that can fit us great. We tell you more about them. Three chairs, three very interesting options The first of the chairs we bring is the Doro C300 model, a model that stands out for several different key models. The most striking is perhaps Your body tracking system for the lumbar zone. Thanks to the same, regardless of how we feel or whether we move, the chair will adapt to us all the time. In this way, we will always have this critical area supported. In addition to this, it is also important to note that both support and seat They are manufactured with a mesh fabric. This is perfect for moments of the year as hot as this, since it does not give as much heat as other materials. Obviously, this is not the only positive thing about this type of tissues, since they also resist the passage of time and intensive use. The price of Doro C300 is 649.99 euros most of the year, but right now we have a Sihoo promotion that leaves it much cheaper. Specifically, its price has fallen to 259.99 eurosa more tempting price. In addition, if we use the Sihoola6 code we will obtain An additional discount of 6%. If we prefer, we have its variant with rest 299.99 euros. SIHOO DORO C300 ERGONOMIC CHAIR * Some price may have changed from the last review The second of the chairs we bring to you is Doro S100, a model whose main difference we will find in the back of the chair. This is because it has A double lumbar supportvery adjustable and that is independent of the rest of the support. In this way, we have it very easy to configure your provision at will. It is also made of mesh fabric, has a 5 -wheel base and its support can be reclined to 135 degrees. The support, in addition, is quite adjustable in height and their 4D armrests allow us to configure them in the four directions with the possibility of uploading them or lowering them as we want. We cannot ignore that your seat It can also be configured independently of the backupthus making the whole set of the chair very customizable. The price of this normal chair is a bit higher than the previous one (649.99 euros), but this promotion of Sihoo leaves it exactly at the same price, that is, 259.99 euros. In the same way as the previous one, if we use the Sihoola6 code we will obtain An additional discount of 6%. * Some price may have changed from the last review We close this selection of Sihoo chairs with the last of the models, Doro S300. It is an improved version of the previous model, which also has a double lumbar support so that we can adjust it as we want. Its main novelty is what the brand calls ‘antigravity mechanism’, thanks to which we can enjoy A flexible and very adaptable experienceEa our body, even if we recline your support. In this case, we also have Some 6D armrest Improved that allow us to adjust them more according to our needs. It is also very interesting that we can control everything from the right side with a simple and comfortable control to use. Everything to facilitate that the experience is not only flexible and adaptable to us, but we can also adapt it at any time to our position. This model has a PVP of 899.99 euros, but now we are at the best time to buy it thanks to its reduced price. The black version of the chair is currently by 699.99 eurosthat is to say, A 200 euros discount. In addition, if we use the code we commented above, we will obtain an additional 6%discount. * Some price may have changed from the last review Some of the links of this article are affiliated and can report a benefit to Xataka. In case of non -availability, offers may vary. Images | Sihoo In Xataka Selection | What a chair to work and play buy: recommendations for ergonomics, comfort and 13 gaming and office chairs from 80 euros In Xataka | How to set up your home office: Guide for the purchase of supports, monitors and other peripherals, cables, headphones and more

Log In

Forgot password?

Forgot password?

Enter your account data and we will send you a link to reset your password.

Your password reset link appears to be invalid or expired.

Log in

Privacy Policy

Add to Collection

No Collections

Here you'll find all collections you've created before.