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The US has had a grain for “Iran”. The United Kingdom does not allow its bombers to enter a secret island that is key to the attack

February 20, 2026 by usatoday24

Since the Cold War, many of the great powers have understood that modern wars do not begin when the first plane takes off, but when secures access to the bases from which it will take off. Sometimes the deciding factor is not so much firepower, but the key that opens or closes a key clue at the exact location on the map. That is happening right now on a lost atoll. A problem with name and surname. The United States has had a major problem for “the Iran thing” and it is not in Tehran, but in the Indian Ocean. United Kingdom refuses to authorize the use of Diego García Island and the RAF Fairford base for a possible air campaign against the Islamic Republic, alleging that it could violate international law if it is a preventive attack. Without that permission, Washington loses two key platforms to project its long-range air power, just when the president has given an ultimatum to Iran and has hinted that in a matter of days he could decide between an agreement or a military operation. The secret island that sustains long wars. It we count some time ago. Located halfway between the east coast of Africa and the west coast of Indonesia, The island was part of the Chagos Archipelago. During the 18th century, it was colonized by the French as an agricultural settlement. So they took the Chagossians, descendants of slaves from Africa and India, to the islands to work on growing coconut trees for the production of copra (dried coconut meat). Over time, the locals developed their own culture and dialect, known as Chagossian Creole. By 1814, after Napoleon’s defeat, The island came under British control as part of the Treaty of Parisintegrating into the colony of Mauritius. Throughout the 19th century, life on the island continued with a small population dedicated to agriculture and fishing, but things were about to change with the beginning of the new century. The agreement. During the Cold War, The United States and the United Kingdom sealed an agreement. Both nations saw the island as a strategic location for a secret military base in the Indian Ocean. In 1965, the British separated the Chagos Islands from Mauritius, thus forming the British Indian Ocean Territory (BIOT), which also includes the other 57 islands of the Chagos Archipelago. By 1966, he signed a secret agreement with the United States, allowing the construction of the “secret” military base. Key node. Since then, Diego García is anything but any base, because he is one of the more strategic enclaves of the Pentagon in the Indian Ocean. Its central runway, its port capable of hosting nuclear submarines and its logistics infrastructure allow strategic bombers to be deployed, maintained and rearmed in sustained cycles. Without going too far, last year it already served as a pressure platform when several B-2s arrived in a clear message to Iran, and precisely that type of deployment is what is now conspicuous by its absence. That there are no visible bomber movements towards the island reinforces the idea that the british veto is conditioning military planning. Without bases there are no prolonged campaigns. The geographical difference is abysmal and explains the tension. From Diego García to Iran there are around 2,300 kilometers, from the United States more than 6,000. That distance sets the pace of departuresthe wear and tear of the crews and the intensity of the offensive. For a one-night operation you can fly round trip from Missouri, as was the case in previous attacks, but for a campaign a week or more against nuclear installations, military commands and missile launchers, advanced bases are needed that allow constant sorties to be generated. In other words, without access to the island and Fairford, the role of the B-2, B-1 or B-52 is greatly reduced and the plan loses volume. A clash between allies. The disagreement is not only technical, it is deeply political. London maintains that supporting an attack could implicate it legally if it knows the circumstances of an action considered unlawful, and the prime minister has marked distances with the White House. Washington, for its part, has responded hardening the tone and linking the refusal to the dispute over the future of Diego García within the Chagos Archipelago, whose status and possible transfer to Mauritius have opened a diplomatic rift. Thus, what began as a legal debate has led to a strategic struggle between historical allies. The war that is amplified without the key piece. Meanwhile, the United States continues to accumulate fighters, electronic warfare aircraft and resuppliers in the region, preparing the board as if the military option was still alive and imminent. It turns out that the heart of a prolonged air campaign is not the F-22s in transit, but those strategic bombers operating from a secure and nearby base. Yes UK maintains the vetoWashington will have more distant and less efficient alternatives, which would force the scope and intensity of the blow to be redesigned. In short, in full escalation with Iranthe piece that could do it all more simple For Washington it is precisely the one that blocks the movement today. Image | Department of DefenseRoyal Air Force, US Air Force In Xataka | One of the most remote islands was taken 60 years ago by the United Kingdom and the United States. Since then, what happens there has been a secret. In Xataka | If the most advanced US nuclear aircraft carrier maintains its speed, it will reach its destination on Sunday. Not good news for a nation

There are already autonomous robots smaller than a grain of salt

December 30, 2025 by usatoday24

Robotics has been pursuing the same obsession for decades: reducing the size of machines without emptying them of intelligence. Until now, that goal had a physical limit that was difficult to cross. Above a certain threshold, making a smaller robot meant making several compromises. That just changed. A team of researchers has shown that It is possible to build an autonomous robot so tiny that it can barely be seen, but still capable of perceiving its environment, processing information, and responding without outside intervention. The development comes from researchers at the University of Pennsylvania and the University of Michigan, who have built what the team describes as the autonomous programmable robot smallest achieved so far. The device is designed to operate submerged in a fluid, and in that environment it can move and operate. The scientific article describes a body measuring approximately 210 by 340 micrometers and 50 micrometers thick. Its scale is so small that it can rest on the ridge of a fingerprint and is almost invisible to the naked eye. A complete robot on a microscopic scale. The difference compared to previous attempts is not only in the miniaturization, but in what this device theoretically manages to integrate. According to the researchers, the microrobot incorporates computing, memory, sensors, communication and locomotion systems within a single autonomous platform. Until now, these systems often relied on external equipment to process information or make decisions. In this case, the robot can execute digitally defined algorithms and modify its behavior based on what is happening around it. The main obstacle to getting here has not been conceptual, but physical. At micrometer scales, the rules change: gravity and inertia lose weight, and forces such as viscosity and drag dominate. In that environment, moving through a fluid is more like moving through thick material than swimming in water. Added to this difficulty is an even more severe restriction, energy. With power budgets around 100 nanowatts, integrating propulsion and computing at the same time had been, until now, an almost impossible compromise. Electronics designed to survive on almost no power. The solution involved rethinking the robot’s electronic architecture from scratch. The team worked with a 55 nanometer CMOS process and used subthreshold digital logic to keep consumption within a budget close to 100 nanowatts. In that space they managed to integrate photovoltaic cells for power, temperature sensors, control circuits for the actuators, an optical receiver for programming and communication, as well as a processor with memory. Locomotion is one of the most unique aspects of design. Instead of motors or appendages, the microrobot uses electric fields to induce currents in the fluid around it, moving without moving parts that could break. Its creators describe it as a system in which the robot generates its own “river” to move forward. That same minimalist logic extends to communication. The measurements you make, such as temperature, are encoded into motion sequences, a simple but effective method at this scale. Tiny robots that act together. Beyond individual behavior, the team has shown that these microrobots can synchronize and operate in groups. According to the researchers, several devices are capable of coordinating their movements and forming collective patterns comparable to schools of fish. This approach opens the door to distributed tasks, in which each unit contributes local information or action. In theory, these groups could continue to operate autonomously for months if kept charged with LED light on their solar cells, although available memory limits the complexity of programmable behaviors for now. With this platform, researchers propose a path toward more general-purpose microrobots, capable of executing tasks in difficult environments without constant supervision. On the horizon are applications that today are closer to the laboratory than to the real world, for example in biomedicine, where devices of this type could operate on body fluids. The team itself insists that this is just a first step. The advance opens a technical base, but the jump to practical uses will depend on increasing performance. Images | University of Pennsylvania and the University of Michigan In Xataka | We still don’t know if humanoid robots will be the next great technological revolution. Yes we know that China will lead it

Café and cocoa have become so much more expensive to suffocate the sector itself. They leave it without liquidity to pay grain shipments

March 14, 2025 by usatoday24

They do not run easy times For coffee lovers. Not even cocoa. Both goods have seen how their prices They shot themselves until reaching Historical values Fruit of a “perfect storm” in which bad harvests and the imbalance between supply and demand are mixed. And although there is who predicts That by the end of the year we will see the occasional price drop (Arabica coffee), today the operators are not having it easy. In fact there are already some who, given the shortage of liquidity, are being seen With difficulties To move the merchandise. It is the nth proof of how the sector is. What happened? That the escalation in coffee and cocoa prices is noticing beyond costs, The demand either The accounts of the sector. A few days ago Bloomberg revealed How the rise in futures markets Of both products is depleting the liquidity of some operators, which is already reflected in their logistics. As? According to the agency, there are companies that are finding problems to finance international merchandise movements. How does that affect the market? Bloomberg’s analysis is clear: to guarantee its position for the future and before the escalation of prices, there are operators who have had to mobilize great sums in the New York Stock Exchange. And that translates into a significant amount of cash blocked, which complicates financing the cargoes that transport grain from the production areas to the consumption points. As a backdrop are The difficulties with which it is part of the industry with the cash flow. What is the problem? “The market in cash and the availability of financing”, Clarify Pam Thornton, with a long experience in the raw materials and cocoa market. To the lack of liquidity it is also added that, in a clearly upward market, some suppliers that have sold at lower prices are breaking their commitments. Another handicap that affects the coffee sector is the shortage of containers and the lack of incentives for reserves. The situation is complicated because many companies sell at the same time with both products, coffee and cocoa, which leaves them in a difficult position when facing cash scarcity. An example aforementioned by Bloomberg herself is Olam Groupdedicated to both grains and that in just one year he has seen how his circulating capital shot 68%. The cause, as explained by the company: the “strong unprecedented increases” in the price of goods. Did prices upload so much? Yes. Specialized platform graphics such as Investing either Training Economics or of one’s own World Bank They are eloquent. The futures of Arabica coffee and cocoa In New York they have descended in recent weeks, but they still remain high if the entire historical series is taken into account. The causes respond in both cases to a sum of factors, including bad harvests in producing areas such as Western Africa, Brazil or Vietnam. In the specific case of cocoa prices 28% have fallen In 2025, but still the future negotiated in New York shot both last year that they remain at levels far higher than the average of the last decade. If we talk about coffee, They remain quite above of those of a year ago. Are there more indicators? Yes. Last week Reuters warned of the complicated situation faced by world coffee trade. In his analysis he even speaks of “paralysis”, with merchants and toasters throwing the brake and reducing their activity to minimums due to the increase in prices. “Normally we would be exhausted, but so far we have sold less than 30% of the production,” a manager of a manager of Elcafe ca does A few daysduring the Convention of the National Coffee Association of the US. “The great price increase is eaten the liquidity of the customers. They do not have all the money to buy what they need,” he adds. There are already signals They point out that Arabica coffee could be reduced sensitively by the end of 2025, both for the behavior of the Brazilian harvest and the effect of prices on the demand itself, but for the moment the industry is forced to be conservative. The footprint in the silos. Reuters points out another equally interesting effect: coffee stores close to US ports, which receive grain from the center or south of America, remain in half of their normal volume and in some cases they are even pretending them. “Some storage companies are returning the silos to the owners, canceling the rental contracts in advance,” Explain An executive of the sector. Images | Kelsen Fernandes (UNSPLASH) In Xataka | 2025 promised to be a calamitic year for the price of coffee. We would love to tell you that the forecasts were wrong

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