space

The new space race has created Boomerang scrap. The probability that clash against a plane has also increased

by

We are launching more rockets to space than ever. Between China and Spacex, they occur releases every few days in a new space race with multiple objectives on the horizon. It’s something that is lowering space transportationbut also generates a new problem: the amount of scrap that orbits our planet. And this generates another conflict: with more satellites and rockets in orbit, the risk that a fragment of some of them hit a plane is increasingly high. At the University of British Columbia they have proposed to analyze it and have determined that, to anyone’s surprise, the consequences of the clash would be devastating. The problem. Beyond the test rockets, transport of goods and people, something that is causing more and more launching are the satellites that bring the internet to any corner. There are several players in this segment, but Spacex carries the front with its program Starlink. These satellites are sent in rockets that, when they fulfill their function, lose height and return to the planet. Some partially disintegrate and others, to the re -enter the atmosphere without controlthey fall anywhere. The ocean is usually the main receptacle, it is also possible that they fall in urban areas or that, on their way, they clash against a plane. The probability. First of all, tranquility: the risk that these space debris impact an plane is still low, very low. According to The Aerospace Corporation, in 2021 (when they were thrown, but it was not the current fever), that risk was one between 100,000, or 0.001%. The system predicted, taking into account future releases, which by 2035 would rise to seven out of 10,000, or what is equal to 0.07%. It is, as we say, a low probability, but that is there. In the study From the University of British Columbia they have analyzed how all this depends on air traffic density. Taking as an example the traffic of September 1, 2023, and the United States as a area, we can see that, every year, there is a 99% probability that the resentments of rocket bodies occur in green areas, 75% in the yellow, 26% in oranges and 0.8% in red. Las Rojas are the most activity areas, such as the main airports, oranges are large cities and green and green move away from urban nuclei and, therefore, from the agglomeration of airplanes. Long March 5B. Beyond the direct clash of this space scrap against a plane, something whose probability remains exceptionally low, there is another problem: the danger of happening and leads to the decision to cut the airspace. On November 4, 2022, the body of the Long March 5B rocket, 20 tons of weight, re -entered the atmosphere, falling on the Pacific Ocean. All good, but it might not have been like this: the entrance location was the product of chance, since the body of the rocket was abandoned in the orbit and a planned design was not made for the re -entry of the remains. Consequences. The night before the reentry, different surveillance agencies, as well as the European Air Safety Agency, issued reports in which they encouraged national authorities to restrict airspace “in a corridor of at least 70 kilometers and up to 120 kilometers on each side of the estimated reentry trajectory ”of the rocket. Spanish and French authorities complied with this and They closed part of their airspace. As a result, 645 flights were delayed, with an average of 29 minutes per plane. In addition, some airplanes that were in full flight had to return to the origin airport or take a detour. It was the evidence of a lack of planning, anticipation and control over this space scrap. Interestingly, Portugal, Italy and Greece did not make the decision to close, generating other problems in their airports due to the unexpected increase in air traffic due to deviant flights. In purple, the airspace closed by the Long March 5B. In blue, his career and fall Solutions. Unfortunately, although this is a problem that will go more, controlling the reentry of space debris is not something that has an immediate solution. The researchers propose that those responsible for launching rockets also invest in controllable reentry technologies so that they do not enter the atmosphere unpredictably. These technologies include engines capable of re -effective to partially direct the rocket, but also a better mission planning so that the rocket falls into a remote area of ​​the ocean, far from populations and, evidently, air traffic. The problem is that, although the technology is there, they estimate that less than 35% of the launches perform these controlled inputs and, with 2,300 bodies in orbit with an annual increase of between 30 and 40 bodies, the risks will continue to increase. In 2001, the titanium engine coating of the third stage of a Delta 2, with a weight of approximately 70 kg, landed in Saudi Arabia, about 240 km from the capital Obviously, it is also a huge money expense, so achievements such as catch the Starship propeller and the advances of Spacex engineers so as not to have launch and throw rockets They are so important. And a global protocol is also necessary to manage these resentments and make coordinated decisions, not to delegate everything in an aeronautical industry that is not responsible. In the end, it is much more likely that there are alterations in air traffic due to this space garbage than to the clash of one of these remains with a plane, but whenever this probability is not zero, solutions must be contemplated. Images | Nature, Spacex In Xataka | The capture of the Super Heavy changes everything: Spacex has gone from being 9 years ahead of the industry to not having a rival

In a strange turn of events, Jesús Calleja will be the third Spaniard in history to travel to space

by

The television presenter Jesús Calleja will travel to space in a Blue Origin ship, the Jeff Bezos Aerospace Company. Tells it in A new documentary called ‘Calleja in space’which has already released two episodes in Amazon Prime Video waiting for its launch in the New Shepard rocket. The space flight does not yet have an assigned date, but it will be broadcast live in Telecinco. The launch of Jesús Calleja. The famous Spanish adventurer has an assigned seat in a New Shepard mission in Blue Origin. Presumably the NS-30, which although it has not been announced, is the following mission in the calendar. The New Shepard is a 15 -meter high suborbital rocket (18 with the spacecraft in which passengers go). Although he is not able to put the capsule into orbit, it was the first rocket in the world that He managed to demonstrate a propulsive landingwhich has allowed Blue Origin to offer a regular space tourism service for millionaires. How will the flight be. The New Shepard will take off from Texas. Calleja and five other travelers will access the capsule at the top of the rocket along the launch tower stairs. The rocket will take off and accelerate to overcome the Kárman line, the most accepted border between the earth and the outer space, 100 kilometers above sea level. While the rocket returns to the surface to land, the ship separates and makes a parable in space during which travelers experience about three minutes of microgravity and enjoy panoramic views of the earth. Next, the capsule begins its atmospheric reentry and opens the parachutes to land, 11 minutes after takeoff. The third Spanish in space. Once you cross the line of Kárman, Jesús Calleja will become the third Spaniard to have traveled to space. The first two Spaniards to achieve this were: Pedro Duque: As astronaut of ESA in 1998, aboard the discovery space ferry, and 2003, aboard a Soyuz ship Michael López-Elegría: as NASA astronaut in 2000, 2002, 2006 and 2009, and as Axiom private astronaut In 2022 and 2024 Pablo Álvarez, career astronaut in ESA since 2022it has not yet flown to space, but it is planned to do so for a mission of six months before 2030. Sara García, reserve astronaut in ESA of the same promotionit could also be called for a shorter mission, such as those of Axiom. How much has the flight cost. The cost per seat of a New Shepard space tourism mission is confidential and surely varies from customer to customer. That said, there was a specific figure that ended up leaking thanks to a transaction made by crypto. Moundao, an organization to “decentralize access to space”, moved 2.5 million dollars in cryptocurrencies To pay two seats aboard the New Shepard. That is: he paid 1.25 million dollars per seat. The first was used by Coby Cotton, of the YouTube channel ‘Dude Perfect’, on the NS-22 Mission of August 2022. The second, by the cardiologist Eiman Jahangir during the NS-26 mission August 2024. Two points. Most likely, Jesús Calleja has not paid the space flight of his pocket, or ruined along the way to his producer, Zanskar Productions. The documentary is co -produced by Mediaset Spain and It is broadcast in Amazon Prime Video streamingwhere it has other sponsors, such as Generali. Maybe Prime Video has been able to access a lower price than usual for the Calleja seat in exchange for all this advertising, but does not have to. Blue Origin is a private company that is only linked to Amazon for being owned by Jeff Bezos, also the founder of the technological giant. Image | Prime video In Xataka | If the space industry wants to democratize tourism, it must overcome several challenges. Like space smells good

The world’s largest elevator has more space than many floors in Tokyo

by

The skyscrapers have obsessed us for centuries. There are plenty of examples like The Italian Manhattan almost 1,000 years ago, Manhattan herselfthe Burred that rose in China or what is erecting in Dubai. Whenever the construction of a new skyscraper is announced, something that comes to mind is: and the elevators … what? They are elements that can go unnoticed, but that is something that does not happen to huge elevator of the Jio World Center tower. Not only is it the largest elevator in the world, but it has the small floor size and capacity for more inhabitants than many PEOPLES OF SPAIN EMPTY. But it is not the only hyperascensor that attracts attention. A bus without wheels. This elevator has no its own name, but, definitely, it deserves it. Created by the Finnish company Kone, the Jio World Center elevator in Mumbai has the capacity to house up to 235 people simultaneously. It is an absolute barbarity that has been designed to offer a transport as comfortable as possible for those who use it. Not only does the decoration attract attention, with large windows and a sophisticated roof with design lamps, but it has its own ventilation system so that the route is as pleasant as possible even at maximum load. The elevator floor also has a very careful pattern and we only miss the occasional sofa to rest. Space is left over, of course. Huge. Because the dimensions are recorded, with its weight of 16 tons and its surface of 25.78 m². It has several access doors to expedite the flow of users and the windows serve to have passengers have a panoramic view of both the convention center in which it is located and its gardens. It only operates on five floors, but that does not make this elevator a real monstrosity. If you are wondering how the security measures, those responsible announced that the system is supported by 18 pulleys and the cabin moves on rails fixed in steel columns. The goal is for transportation to be as comfortable as possible, without accelerons or brakes. And all this is remotely monitored to avoid dislikes. Your building is not far behind. The elevator is colossal, but its building is no less. He Jio World Center It is a space dedicated to great conventions. It is the largest in India and its exterior and interior design has no waste. Is not the only one. Now, one thing must be clarified: that of the Jio World Center is the largest elevator for people in the world both by weight and charging capacity, but there is a set that has nothing to envy: that of the office building UMEDA JANKYU In Osaka, Japan. Installed in 2010, these are five elevators of about 18 square meters with capacity for 80 people each. Built by Mitsubishi, these elevators have more merit by having more work than that of the Indian Convention Center and transporting almost 400 simultaneous people through 15 plants. The Bailong China, of course. But if you suspected that China, With its mega -structuresI would not have a hyperascensor in any of them, you are right. In fact, it has two. One of them, the Bailongan elevator that runs a height of 326 meters outdoors with capacity for 50 people at the same time and a speed of overwhelming three meters per second. There are three double -floor elevators that operate simultaneously and were inaugurated in 2002. Their views are imposing, since they are next to a cliff. And if we go to the industrialists… just as imposing, due to its capacity, it is the ship’s elevator of the three throats, also in China. It is an elevator that facilitates River traffic on the Yangtsé River and has a load capacity of up to 3,000 tons. Its platform is 120 meters long, 18 wide and 3.5 meters deep. It is a demential structure that raises the ships at a height of 113 meters, an operation that has between 30 and 40 minutes and that, although it seems a lot, is much faster than the traditional system of locks to pass ships from one side to another. Images | KoneJio World Center, NYX NO In Xataka | The B face of the New York skyscrapers: more than 600 kilometers of permanent scaffolds that form bonds of terror

Siberia stays in the dark good of winter. In 1988, Russia had an idea to solve it: mirrors in space

by

Towards the end of World War II, Some documents in Life magazine They revealed one of the many ideas that Hitler’s Nazi Germany had: a kind of solar projectile through A giant orbital mirror to destroy enemies or even whole cities. Obviously that never happened, but decades later it served as a slight inspiration for a Russian scientist who started from a fascinating idea: how could we extend the hours of the day? Convert the night. The truth is that the background idea is not new. Over the years, Humanity has sought to extend the day (Understood as day and light) with technological tools, from electric light to digital communications. However, in the 1990s, a group of Russian scientists tried to take this concept to the extreme: launch huge space mirrors to reflect sunlight towards the earth and prolong the day. Vladimir Syromyatnikov. The project we are talking about was directed by Vladimir Syromyatnikovone of the most influential space engineers in historyknown by Develop the ship’s coupling mechanism which is still used at the International Space Station. During the 80s, his interest focused on The design of solar candles that could use solar radiation To propel ships through space. However, in postsoviet Russia, obtaining financing for space projects required clear economic justification. Thus, Syromyatnikov reformulated his idea and presented it as One way to illuminate Siberia’s arctic regions during the dark winter monthsincreasing productivity in agriculture and industry. Yeah, I would try to turn on the sun for the polar regions of Russia After the night fell. Image of Znamya Znamya and his brief success. In 1988, Syromyatnikov founded the Space Regata Consortiumwith the support of Roscosmos and several state companies. His motto was very clear: “Diury light all night.” The idea not only promised to reduce electric lighting costs, but also Facilitate rescue in disasters, military operations and night construction projects. The first prototype, Znamya 2, He was sent to space in February 1993 aboard the progress M-15 ship and subsequently deployed from the MIR Space Station. Once in orbit, he began to turn to deploy its reflective surface. The mirror, 20 meters in diameter, achieved the feat of Reflect a beam of light equivalent to that of a full moon, illuminating an area of ​​5 km in diameter while crossing Europe and Russia 8 km per second, even Astronauts in Mir confirmed that they could follow the flash from space. The problem? The reflected light was more diffuse than expected and difficult to controland the weather was not taken into account. Plus: The cloudiness prevented the majority of observers on land to notice. Hours later, The mirror disintegrated by re -entering the atmosphere. ZNeamya 2.5. Despite its short duration, the experiment showed that the concept was viable, which promoted Znamya 2.5 planningwith a larger mirror and the ability to maintain the beam of light on a fixed point. Thus, in 1999 this second version was launched with A 25 meter diameter mirror. This time, when deploying, one of his fine sheets became entangled in an antenna from the Progress ship, tear the structure. The attempts to free her failed and the mirror had to be exorbitantburning in the atmosphere. The next step would be Znamya 3, with a 70 -meter mirror, capable of illuminating entire cities. What happened? That The failure of Znamya 2.5 and the lack of financing buried Syromyatnikov’s project and dream. In addition, the opposition of astronomers and environmentalists grew, arguing that Space mirrors could alter natural cyclesaffect astronomical observation and confuse wildlife. A man and his tireless search for light. Despite the failure, Syromyatnikov continued looking for financing to build a permanent mirro system. We talk about An estimated project of 340 million dollars. His vision was a world where cities would not need artificial light and the days had no nights. However, investors lost interest and the project was abandoned. Syromyatnikov continued his work on coupling systems until his death In 2006, dedicating his days to work without rest, in an ironic parallelism with his obsession with eliminate The night. The legacy. If you want, that was also the end of a space “exploration.” In any case, much less the background idea is over. Today, the idea of ​​taking advantage of sunlight from space has resurfaced In the investigation of orbital solar plantsthe same as They could send energy to Earth through microwave. However, Znamya is still a reminder of the limits of technology and the need to respect natural cycles. Russia’s attempt to convert the night and enlighten Siberia in winter was both a demonstration of human ingenuity and an experiment that, in the end, crashed with the laws of nature and resistance of the modern world. Image | QSI/MIR In Xataka | The Nazi plan to build a huge space mirror with which enemies and the Russian project that (almost) makes it a reality In Xataka | A secret simulator of the Cold War led to the US and Russia to a nuclear war. Since then they know what the red line is

China has built such a huge laser that is seen from space

by

Last year, China revealed a budding technology to which They had called Crazy Li. It was an unpublished combat laser capable of cutting metal or causing blindness on the battlefield. What has now discovered an American satellite is completely different from everything known. By size, we are facing an unusual development, so much that it is seen from space. A technological colossus. Apparently, everything indicates that China is developing in the city of Mianyang, Sichuan province, A huge laser fusion research centera technology with the potential to provide clean and unlimited energy. A project that also could also have military applications in the design and modernization of nuclear weapons, According to analysts from two independent intelligence organizations. And how have we learned? Satellite images have revealed A structure with four gigantic arms that will house laser bays directed towards an experimentation center where fusion tests will be performed using hydrogen isotopes. According to analyst Decker Evelethof the CNA Corporation, this installation is at least 50% larger than the National Ignition Facility (NIF) in the United States, which would make it the largest nuclear fusion center in the world. The company would have been monitoring its evolution from space since in 2020 it was just “a land patch.” The project, called Laser Fusion Major Device Laboratoryit had not been previously reported, which has generated concern in the international community about its true purpose. How the laser fusion works: star energy. Nuclear fusion consists of joining hydrogen atoms to generate energyreplicating the process that occurs in the sun and other stars. Unlike the nuclear fission currently used in nuclear plants, Fusion does not generate long -term radioactive waste or pose catastrophic accident risks. In this type of facilities, the powerful lasers shoot on a central chamber that contains hydrogen isotopes, compressing them until they merge and release a huge amount of energy in a process known as ignition. In the case at hand, the design of the Chinese installation presents those four huge arms that They will channel the laser energy towards a central tower where the fusion chamber is located. China vs.euu. Until now, the National Ignition Facity from the United States has led the laser fusion research for decades, achieving in 2022 a historical milestone: The first fusion reaction with net energy gain. The only “but”: the advance did not tell the energy expenditure necessary to feed the lasers, which still leaves the merger far from being viable as a commercial source of electricity. For its part, China, With its aggressive approach in technological developmentcould be shortening the distances. Analysts such as Melanie Windridge, director of Fusion Energy Insights, highlight that the Asian country is advancing with determination and speedwhich could give it a strategic advantage. For Andrew Holland, director of the Fusion Industry Association, if the United States and its allies do not accelerate the investment in nuclear fusion, China could win the race in a short time. Its ability to carry projects from the concept to construction is remarkably faster than that of the West. China East Fusion Reactor Energy or weapons? It is the big doubt after knowing the images. Beyond its application in energy production, these facilities can also perform A crucial role in the development of nuclear weapons. Both China and the United States are signatories of Complete prohibition treaty of nuclear testswhich prevents testing with atomic explosives. The problem? The capacity of these facilities It allows to simulate nuclear explosions without physically detonating themoffering key data to improve the design and performance of nuclear eyes. In this regard, William Alberque, analyst at the Henry L. Stimson Center, He pointed to the CNN that any country with an installation similar to the NIF inevitably will use its ability to improve its nuclear arsenals. Eveleth coincides, suggesting that the Chinese project It could allow the development of more sophisticated weapons, even smaller and more efficient versions. While some experts believe that this advance reduces the need for real nuclear tests, it could also mean a modernization of the Chinese arsenal without the country needing to perform test explosions, thus avoiding international sanctions. And a hybrid reactor? It is the other possibility that is considered, that the installation in Mianyang is not only a conventional laser fusion installation, but A hybrid fusion-fission reactor, which would further raise its strategic potential. The reason? This type of technology combines nuclear fusion with fission to generate energy more efficiently. According to Holland, if China develops this type of reactor, It would be more advanced than any similar installation in the Westwhich would consolidate its leadership in the field of advanced nuclear energy. Geopolitical implications. China’s advance in the construction of this installation points to part of an ambitious energy and military development program, marking a new phase in technological competition with United Statess. As we said, nuclear fusion has been considered The “energy of the future” for its ability to provide clean and unlimited electricitybut also represents a powerful tool in terms of national and geopolitical security. While the United States continues to lead scientific achievements in the field, China accelerates or seems to be demonstrating A much faster construction and scalability capacity. A development that could influence the balance of global power, not only in the energy field, but also in the strategic and military. A fact to consider: China has performed 45 nuclear tests in its historya significantly lower number than The 1,054 of the United States. In other words, its detonation database is more limited, so the use of advanced fusion simulations could be crucial to improve their designs without the need for real evidence. Image | Planet Labs PBC, Chinese Academy of Sciences In Xataka | His name is Crazy Li and is able to cut metal or cause blindness: China has developed an unpublished combat laser In Xataka | This is ‘Orca’, the new Chinese military ship without crew and up to weapons

Elon Musk says he will rescue the two astronauts stranded in the space at Trump. The problem is that

by

A incendiary message. “The president of the United States has asked Spacex to bring the two astronauts stranded at the International Space Station as soon as possible,” Elon Musk wrote In his profile of X. “It is terrible that the Biden administration has left them there for so long.” After 20 minutes, more than one million people have seen the message, which Musk apostilled answering “true” to the following answer: “The hatred they had was greater than their desire to rescue those astronauts.” A little context. In June 2024, two astronauts arrived at the International Space Station aboard the Starliner spacecraft, Boeing’s alternative to the Crew Dragon of Spacex. The ship had to spend a week in orbit before returning to Earth, but A failure in the propulsion system During the first leg he made three months undergoing And finally I would go empty. Elon Musk’s X messages about astronauts Elon Musk lies. No one will be surprised at this point that Musk publishes propaganda in his X profile, but the message misrepresent the reality in a particularly fantasy way. While it is true that astronauts Butch Wilmore and Suni Williams are still in space since June, they are not stranded. SPACEX CREW-9 MISSION took off in September 2024long before Trump assumed the presidency, with two empty seats to bring them back. So why do they continue in the ISS? It was the plan provided by NASA. Wilmore and Williams were reallocated to the CREW-9 mission and became part of the permanent crew of the International Space Station. Williams is, in fact, the commander of expedition 72, and He has just taken a space walk As part of your tasks. That NASA did not ask Spacex to look for them immediately has nothing to do with the hatred of Musk, but that there was no crew dragon to immediately available. The most logical solution was to get two astronauts out of the next round trip (the CREW-9 mission) to leave two free seats. And now what? The return of the CREW-9 mission is scheduled for the end of March 2025. So far, the expected thing was that Wilmore and Williams return along with their mission partners, the American Nick Hague and the Russian Aleksandr Gorbunov, in March or maybe in April. But Musk’s message suggests that perhaps his return goes ahead. As for the Starliner, NASA canceled the flight that had hired Boeing By 2025. The two astronaut rotations of this year will be in charge of Spacex while Boeing continues to analyze what could fail in its first manned flight and how it plans to solve it. Images | Steve Jurvetson (CC By 2.0), NASA In Xataka | The Starliner ship is not only a humiliation for Boeing: it is a moneyless money well that will no longer be able to recover

China has placed the largest engineering work projected at 36,000 km from the Earth: its space solar station

by

We are still far from build a dyson spherebut China seems willing to materialize The first great Solar Energy Station in orbit With the Earth, a simpler version of the concept that, even so, NASA scientists discarded in the 70-80 for being economically unfeasible. Times have changed and the world is in full energy transition to renewable sources. China, who has no shame when copying advances from other nations, provided they serve their purposes, work at the same time in Your own Starship: A totally reusable giant rocket called CZ-9. Uniting points, the Chinese Engineering Academy (CAE) wants to take advantage of the future rocket To install a huge solar plant in space, 36,000 km on the earth. 10 years ago, when China announced that it would investigate the space solar energy stations, everyone seemed to be a theoretical study or one more concept proof, such as those that continue to develop Today in NASAthe Jaxa Japanese agency and The European Space Agency (THAT). However, Chinese officials have put An ambitious roadmap on the table that has caught the rest of the countries totally off guard. The first prototype of the Chinese space center, 500 kW of power, is expected by 2030. A fully operational version of 20 MW would be ready in 2035 (while the station in its final form, of 2 GW, is scheduled for 2050. It is not a small thing for a technology that has never been implemented, much less on a large scale. It will presumably require hundreds of launches and the assembly of thousands of solar panels in geostation orbit, 36,000 km altitude, where the profitability of launching tons and tons of load will depend on the fact that the CZ-9 rocket be fully reusable, as the Chinese promise. Long Lehao, a rocket scientist in the fall, did not lack symiles to justify this huge media deployment. “It is a project as important as transferring the prey of the three throats to a geostationary orbit He said during a conference in the Chinese Academy of Sciences (CAS). Of course, they will have to put small demonstrators in orbit of what will end up being the Space Solar Station. China has already tested From hot air balloonsand is building a receiving station in Chongqing. By 2026, the Chinese Space Technology Academy (CASC) plans to display its first 10 kW solar panels in space with the aim of demonstrating wireless energy transmission. He hopes to transmit up to 1 kW by laser and up to 4 kW by microwave, both to the receptor station on Earth and a nearby satellite, which suggests a future in which satellite constellations could be combined with the solar station. How will the solar station that China plans to install in space Little is known at the technical level of what the first farm of solar panels will be deploy in geostationary orbitsince no project has been officially selected. But Eureka List three concepts, out of different Chinese laboratories, which have enough ballots: In 2014, the Chinese Space Technology Academy (CASC) proposed a 11.8 km long station with a circular transmission antenna of 1 km in diameter; In 2021, the concept was updated with a modular design, easier to assemble, but with the disadvantage of a rectangular beam That same year, the Xidian University published a study on a spherical station with a diameter of 8 to 10 km and a system that would take advantage of semi -reflective panels to concentrate light on internal photovoltaic cells In 2016, the Shenyang Aerospace University proposed a similar concept that, instead of a spherical design, has a cylindrical design that refracts sunlight towards internal photovoltaic panels, a design that simplifies the monitoring of the sun What these concepts have in common is that they rotate like sunflowers to always point towards the sun, so their huge solar panels capture an inexhaustible flow of solar energy that then transmit to the earth. How do they transmit it? Concentrating a laser or microwave beam towards large antennas in receiving stations on Earth, where it becomes electricity to store in batteries or pour into the electricity grid. The wireless transfer takes advantage of a physical phenomenon known as interference or overlap of waves. It is usually explained by visualizing a pond in which you submerge both hands to form waves that spread at the same time. There are areas where waves are stronger because they advance together (they add up to the phase) and others in which they are canceled (they are out of phase). When waves work together, energy is not lost, but is concentrated in a specific direction. If there are several sources operating in a coordinated manner (all issuing at the same time, in the same phase) the energy can be directed in one direction. But if each source works a little earlier or a little after the others, the direction of the beam can be controlled. As a magnifying glass that concentrates the light at one point, it is possible to adjust the synchronization of these sources to focus energy in an area smaller than the original (such as the antenna on the surface of the earth). This correction can be carried out on the Nanoseconds of Electronics scale, which allows the energy direction to be handled very quickly or assigned to different locations (different antennas). In geostationary orbit, solar panels can be operated all the time and with conversion efficiencies superior to those that the panels achieve on this side of the atmosphere, hence the advantage of a photovoltaic station in space. However, the complexity of its deployment and doubts about the safety and efficiency of wireless transmission make all this technology still without being tested since studying in the 70s and 80s. China aspires to lead the new space solar energy career, as leading the earth’s photovoltaic energy, but will not be alone. Japan became 2015 In the first country that managed to transmit 1,8 kW in microwave wirelessly. … Read more

Business to offer temporary space to businessmen displaced by fires urgently

by

The Los Angeles County Supervisor, Janice Hahn urged businesses that have extra space to share their facilities with businessmen displaced by fires. To connect entrepreneurs who can offer temporary space and small displaced businesses, the website was created this week Business-to-Business Space Share released by Los Angeles County Department of Economics Opportunity (DEO). It is a free platform that connects displaced businesses, including non -profit organizations, with temporary spaces of companies along the county. “This new website is inspired by the generosity of the owners of small businesses, entrepreneurs and professionals along the county who are looking for ways to help,” said Hahn supervisor. “If you have a space, that’s how you can help. If you can offer a space where a dentist attends to his patients; or in which a stylist can fulfill his appointments; A lawyer can see his clients; Or any space, you will be helping someone who needs to maintain their way of life and help our economy in the midst of this crisis, ”he added. The idea of ​​creating this website to share business spaces from the Hahn supervisor after talking to Whittier councilor, Cathy Warner. Warner has a periodontal practice with her husband in East Whittier and attends patients in her office three times a week. She told the Hahn supervisor that she wanted to offer the space for four days a week to the periodoncistas displaced by the fires. This gave the supervisor the idea of ​​having a website of the Los Angeles County that facilitates connecting business, taking advantage of generosity. “The exchange of spaces between companies is the direct result that our county government listened to the concerns of local businesses and by showing our own entrepreneurial spirit with solutions, we rebuild for tomorrow,” said Kelly Lobianco, director of the DEO. “Together we are promoting a more resistant and adaptable economic ecosystem in which businesses can open their doors to others while we recover together.” According to the Hahn Supervisor office, the new platform is a critical resource to help displaced businesses to maintain their operations, safeguard their modus vivendi and boost economic strength. Created by the Department of Internal Services (ISD), the platform will be available for a limited time, as part of a coordinated effort of the county to support the economic ecosystem affected by disasters. Through the Space Share portal that works in a friendly way, companies with available space can publish advertisements, providing details such as location, capacity and availability. Angela Herrera, spokeswoman of Deo, revealed that the site will also be ready in Spanish, most likely this weekend. The businesses that were left without their workplace due to the fires can explore the website to find the spaces that best adapt to their needs. Although the platform facilitates the connections, the County clarifies that it does not participate or supervises the terms of the agreements made, since it seeks that companies retain full autonomy in the negotiations. “The Internal Services Department (ISD) recognizes the devastating impact that recent forest fires have had in many local companies, which has caused significant displacements and losses,” said Michael Owh, director of the ISD. “We hope this tool helps companies help each other and provide support in this moment of need.” Business interested in donating spaces or who are looking for a place to work can visit the Business to Business Space Share portal in: https://sharhespace.lacounty.gov/ There is no exact figure of how many businesses were devastated by fires, but it is presumed that thousands are. How it works Businesses or people who offer space can create ads with relevant information, such as size, amenities it offers and availability dates. Several ads are allowed, provided that the spaces are available at least one day. While displaced businesses in search of a workplace can search for appropriate options and connect directly to the commercial space donor. In good faith but complicated Although Mario Cárdenas, business advisor at Lynwood, had not heard of the initiative, considered that it was made with good faith by the Hahhn supervisor. However, he anticipated that his involvement can be difficult and complicated. “It’s not that you don’t want to help, but it represents many risks because you never know how the other person you are going to facilitate a space within your business.” Despite the challenges, Cárdenas kept the hope that the generosity of entrepreneurs will be imposed, and share their spaces with those affected. (tagstotranslate) fires

How to optimize the space in your carry-on luggage to carry more clothes

by

Traveling by plane is an exciting experience, but Planning carry-on luggage can be a real challenge. With weight and space restrictions imposed by most airlines, many people struggle to carry everything they need without exceeding the permitted limits. Fortunately, there are tricks and strategies that will allow you to optimize your luggage and avoid additional expenses. Here we tell you how. One of the most recommended techniques by travel experts is to pack your suitcase vertically. This simple but effective method maximizes available space and keeps your belongings organized. Advantages of packing vertically * Greater use of space: By organizing your clothes this way, you can fit more things without needing to squish or disorganize them. * Quick and easy access: Everything is visible when you open your suitcase, making it easy to find what you need without causing clutter. * Avoid excess charges: Making the most of every inch of your suitcase means you can carry more without worrying about extra weight or volume. How to apply this technique 1) Place the suitcase upright: Imagine it is a closet. This will allow you to visualize the space in a different way. 2) Group by categories: Organize your clothes in piles according to their type: t-shirts, pants, underwear, etc. 3) Insert each thing vertically: Make sure the clothes fit well to avoid movement during transport. This method not only makes the packing process easier, but it also makes unpacking much easier when you arrive at your destination. With these tricks it will be easier for you to pack your carry-on luggage. (Photo: Shutterstock) The 5-4-3-2-1 method for efficient packing Another effective strategy to optimize your carry-on luggage is the 5-4-3-2-1 method. This formula, popular among experienced travelers, focuses on carrying only the essentials, allowing you to create multiple outfit combinations. What does it consist of? * 5 top garments: T-shirts, blouses or shirts that you can wear on different occasions. * 4 bottom garments: Pants, skirts or shorts adapted to the needs of the trip. * 3 pairs of shoes: It includes a comfortable one for walking, a casual one, and a more formal or specialized one. * 2 versatile garments: Dresses, suits or jackets that can adapt to different situations. * 1 set of accessories: Glasses, scarves, belts or jewelry that complement your outfits. This technique is ideal because youand forces us to prioritize versatile garments and avoid excess. By choosing clothes that match each other, you can create numerous looks with just a few pieces, saving space and time. Bonus tip: If your destination has variable climates, adapt this formula by including light layers that you can wear together or separately. Additional Tips to Maximize Your Luggage In addition to the previous techniques, there are other tricks that can help you make the most of every centimeter of your carry-on suitcase: 1) Roll the clothes. Instead of folding your clothes, roll them up. This method not only saves space but also reduces wrinkles. Ideal for t-shirts, pants and underwear. 2) Use travel organizers. Packing cubes are a great tool for keeping your things separated and compressed. You can group clothes according to their type or use and avoid clutter. 3) Fill the shoes. Take advantage of the space inside your shoes to store socks, chargers or other small items. This will prevent wasted spaces in your suitcase. 4) Wear what you are wearing. If you have bulky clothing like coats or boots, wear them during the flight. This frees up space in your carry-on and keeps you comfortable during your trip. 5) Minimize toiletries. Carry only the essentials in travel-sized containers. Many airlines have strict limits on liquids, so opt for solid products or buy what you need upon arrival. Benefits of efficient packaging Packing smart not only saves you money, but also time and energy. Plus, it allows you to enjoy the trip without the worry of losing things or paying unnecessary fees. With these tips, you will achieve: 1) Avoid additional charges for excess baggage. 2) Simplify the organizing and unpacking process. 3) Carry everything you need without sacrificing comfort. The next time you plan a flight, put these recommendations into practice and enjoy a more comfortable and smooth trip. Packing well is not only an art, it is also the key to starting your vacation on the right foot. Keep reading: * 9 tips with which you can travel more and spend less in 2025* 6 tips that will help you travel more comfortably on cheap flights* 8 common mistakes when traveling with carry-on luggage and how to avoid them

ESA has a plan against space debris, but it needs help

by

The problem of space junk It’s getting more and more serious. Fragments of parts used in space missions are left wandering around the Earth until, at best, they deorbit and they return to our planet, burning as they cross the atmosphere and reducing to ashes. But other problems can also occur. For example, in the time they remain floating in space they can collide with each other producing a domino effect or, directly, collide with a satellite or even with a ship or space station. Furthermore, upon returning to Earth they may not burn sufficiently and escape the control of scientists on Earth, falling in unexpected places and causing accidents. For all this, the European Space Agency (ESA) has launched a plan aimed at finding a way to reduce trash in space to zero. It won’t be easy. In fact, some technologies are required that do not yet exist today. However, ESA has warned that this is not the biggest challenge of their plan. The most difficult thing will be to obtain the necessary collaboration of other space agenciesboth public and private. Everyone must agree to put measures in place to end space debris and they must do it together, informing the rest of the companies of each step. That will be the most difficult, because even though today we no longer talk about a competition as marked as when the United States faced the Soviet Union, all agencies want to be first and, to do so, sometimes they forget about the common good. That is the first thing we will have to work with and, without a doubt, it will be even more difficult than creating cutting-edge technologies capable of eliminating space debris. Why is the problem of space debris so serious? As explained in Universe Todaythere are billions of pieces of space junk orbiting Earth, and more than 25,000 of those pieces they are bigger than 10cm. It may seem that 10 centimeters is not enough, but that is enough to produce a dangerous crash. The space is immense, but the area occupied by all those pieces is not that large. They are all in orbit around the Earth. For this reason, it would not be difficult for them to collide with each other or with some object of human construction that is still in operation. These pieces can have many origins. Some are remnants of explosions during missions gone wrong. Others are objects that had a long useful life; but, once their mission was accomplished, they went out and were left to wander around the Earth. There are also remains of rockets that, once the ship they propelled was released from the Earth, were stranded in space if they did not manage to fall into the Earth. There are even smaller fragments from the ship propulsion launched from our planet or from the breakage of other larger pieces due to collision with space objects or exposure to the space environment. There is everything. Some of those objects pose a risk in space, but others pose a risk here on Earth. Space debris can cause a dangerous domino effect. According to a study published in 2022there is a 10% risk of a piece of space debris falling on a human being in the next decade. This would happen if, as we saw before, deorbits uncontrollably. At the moment it has not happened, but there have been cases of fragments of space debris that have fallen near human constructions. Or even inside. When this happens, space agencies try to wash their hands as much as possible. For this reason, at ESA they consider that international cooperation, although essential, would be very complicated. What is the ESA plan? The ESA plan consists of two parts. The first is based on prevent the release of new space junk and the second in the elimination of what is already in space. For the first, they point out a first measure that consists of using special coatings in all pieces that are launched into space. These would be responsible for preventing these pieces from being damaged by the passage of time in the inhospitable space conditions. They would also protect them from possible crashes. Thus, the release of small fragments by degradation. The second proposal to avoid releasing new space debris consists of using new forms of propulsion. Many of those currently used release small fragments in the process that later become space debris. For example, options could be tested based on the electromagnetism. A lot of research would be needed, but ESA considers it viable. Of course, they also propose better surveillance of everything that is released into space. There must be constant monitoring systems. It is not valid to leave free pieces to their fate without any type of control. As for the removal of space debris that is already accumulating, the measures would be even more complicated, but not impossible. New technologies would be needed capable of deorbiting in a controlled manner those fragments that, in monitoring, prove to be dangerous. There are already some inventions along these lines and, although they are not widely used, the first prototypes have been very promising. Collaboration is essential to eliminate space debris There are already companies, public and private, that have their own mechanisms to release less space debris. However, the majority are still a kind of spacewashingwhere they wash their faces with small measures that do not even equal the damage they do on the other hand. Image of the Starship debris just a few days ago. This is, for example, the case of SpaceX. Elon Musk’s company has been researching the use of reusable rockets. This is very useful to prevent the accumulation of space debris. However, it continues to launch thousands and thousands of satellites into space that could become space debris and, furthermore, it does not stop carrying out test flights of its ships, knowing that many of them will go wrong and release garbage into space. … Read 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.