detects

that an F-35 not only detects the enemy, but also gets rid of it on its own

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In 1991, during the Gulf War, a good part of the air missions depended on uploaded threat maps before takeoff and analyzes that could take hours to update after each departure. In the following years, the digital revolution allowed the integration of sensors, data links and information fusion systems that forever changed situational awareness in the cockpit. But even the most advanced fighters continue to carry a legacy from the past: they react to what they already know better than to what has just appeared. Until now. From advanced sensor to autonomous hunter. For years, the F-35 has been presented as a platform able to see everything thanks to its fusion of sensors and to your powerful suite of electronic warfare, but was still dependent on pre-loaded threat libraries and updates that could take days or weeks. The appearance of unknown emissions or radars operating in unforeseen modes required identifying the signal, downloading the data after the mission and reprogramming the system before the next flight. That logic, although effective, left a dangerous margin in scenarios saturated with changing air defenses. With Project Overwatchthe United States has taken a decisive step to close that gap and transform the role of the F-35 on the battlefield. AI enters the cabin. Lockheed Martin has tried successfully in flight a model AI integrated into the system of the F-35 combat identification, one capable of resolving ambiguities between emitters and generating an independent identification that appears directly in the viewfinder of the pilot’s helmet. During testing at Nellis, the algorithm not only distinguished dubious signals, but allowed label new emissionsretrain the model in a matter of minutes and load the updated version within the same planning cycle. The information from the classic system and that from the new model coexisted on the screen, reducing latency in decision-making and relieving the pilot of part of the cognitive load in an environment where every second counts. The big problem. It happens that modern air defense systems they no longer broadcast always the same signature. They can alter radar modes, frequencies and patterns to confuse enemy electronic warfare, as seen with variants of the S-300/SA-20 that operated in unforeseen configurations and generated doubts in identification. Until now, the plane pointed out the anomaly, but the in-depth analysis depended on a subsequent human cycle. Plus: in an environment where the proliferation of AI also accelerates the evolution of defenses, that dependency could become a vulnerability. And this is where cognitive electronic warfare appears, which seeks precisely to break that bottleneck and react to unprecedented signals. without waiting to the next mission. The “holy grail” of aerial combat. If you like, Lockheed Martin has achieved the “holy grail” of combat in tests: that an F-35 not only detects the enemy, but also how to get rid of it on your own. The ultimate goal of cognitive electronic warfare is to the system is not limited not only register an unknown threat, but analyze it, determine the best response and adjust its own parameters in near real time, even in the middle of combat. This involves detecting a new release, characterizing it, deciding whether to avoid it, interfere with it, or exploit a weakness, and update the threat library without immediate external intervention. In this scenario, the plane stops being a simple executor with predefined software and becomes a platform that learns and adapts your survival on the go. Towards mid-flight updates. It will be the next step. Previous experience with rapid updates of the Aegis system on US ships and the effort to shorten F-35 reprogramming times from months to days, and eventually hours, point to an architecture where data flows almost in real time between platforms. They count at Lockheed Martin that the ambition is for the improvements derived from a mission to be quickly integrated into other aircraft or even into compatible naval systems, creating a defense ecosystem that evolves in a distributed manner. While the Block 4 package promises a new generation of electronic capabilities, Project Overwatch It already anticipates a deeper transition: that of the fighter that not only sees and shoots first, but also learns before anyone else and survives on its own. Image | RawPixel In Xataka | Europe has asked its military experts how to become independent from the US for the next war. The answer is déjà vu: the F-35 In Xataka | The Netherlands has just activated panic in Spain and the US allies: the F-35 can be “released” like an iPhone

The largest clinical trial confirms that it detects more and reduces the radiologist’s burden

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With the arrival of artificial intelligence, one of the applications was undoubtedly medicinewhich could mark a authentic revolution. Although definitive proof was missing to tell us that it really had real use. And this one just arrived thanks to an article published in The Lancent which has pointed out how AI can help us detect more breast cancers and even reduces those that are much more dangerous. The screening. Unfortunately, in Spain we have in mind, because of how recent it was, the problems with screening programs in Andalusia. And despite this great controversy, this type of screening is very useful and significantly reduces the number of women who end up dying from breast cancer that was not detected in time. But now we want to go a little further with the integration of technology so that fewer tumors escape that to the human eye can escape due to their small size. Interval cancers. Without a doubt, it is the great enemy in radiodiagnosis when we refer to screening mammograms. This term refers to those tumors that are detected between one check-up and the next, and that have different reasons for their appearance. The first reason is that it is a tumor that grows very quickly (and that can be much more malignant) or that was missed in the previous control mammogram due to its small size. And this is a serious problem, since the basis of screening is to detect cancers in the earliest stages where they can respond better to more conservative treatments. The study. The MASAI trial (Mammography Screening with Artificial Intelligence) has shown that the use of AI reduces these cases drastically. And the figures are quite promising, since there was a 12% reduction in cancer rate interval in the two years after the woman was screened. In figures, it went from 1.76 cases per 1,000 women to 1.55 cases. A difference that may be very small in our eyes, but in public health and oncology it is a real success, since reducing by 12% the tumors that usually “escape” is a major clinical advance. Less work. Until now the standard method to analyze these tests focused on a double reading. This means that two radiologists reviewed each mammogram independently to ensure nothing was missed. A security method that is ideal, but that consumes an immense amount of human resources in health systems. That is why with this method a paradigm shift is proposed that is based on intelligent triage and that can be summarized in three different points: The AI ​​initially analyzes the mammogram image and assigns it a risk score from 1 to 10. In the event that it is categorized as low risk, the image is reviewed by a single radiologist to see if it agrees that the image is clean and closes the case. If the risk is high in the mammography, the image does pass the double reading system with AI marking the most suspicious areas where there may be injury. The result. With this new algorithm, the study has aimed at a 44% reduction in the reading letter for professionals, in order to make doctors now focus on the images that are much more doubtful. And no, working less did not mean working worse. On the contrary: the AI ​​arm of the study detected 29% more clinically relevant cancers without increasing the rate of false positives (the great fear of over-diagnosing healthy patients). Complement and not replace. This is something important that the study itself highlights, since they point out that AI has not arrived to fire radiologists. The MASAI method is only a “decision support”, since the AI ​​prioritizes, orders and signals, but the final clinical decision is always that of the doctor and therefore in human hands. With the publication of these final results in The Lancet, The validation cycle of one of the most important tests is closed of the decade in radiology. The next step is no longer asking whether AI works in breast cancer screening, but how long it will take for public health systems to implement it to give radiologists one more tool that allows them to be more precise and methodical. Images | National Cancer Institute In Xataka | A Spanish milestone against pancreatic cancer: we are one step closer to eradicating it but there is still a long way to go

1,800 years ago China had one of the most intriguing technologies. Now is the point of resuscitating the dragon that detects earthquakes

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Almost two thousand years ago, during the Han dynastythe Chinese scholar ZHANG HENG He designed a device that, according to historical chronicles, could detect distant earthquakes and even point out his address. That invention, called HouFeng Didong Yiit was a mechanical gadget that had the dragon as the main actor. Now China is about to resurrect what a legend was believed. A erased prodigy of time. We talk about a mechanical system (an ornate vessel surrounded by eight dragons with suspended bronze balls, oriented towards mouths of toads) that would have been able to register imperceptible earthquakes in Luoyang, the imperial capital, with a precision that “touched the divine”, according to THE BOOK OF THE Subsections. However, its sudden disappearance of historical records and the impossibility of replicating it exactly led to its total elimination of the Chinese educational curriculum in 2017, relegating it to the field of legend. Today, a team led by Professor Xu Guodongfrom the Hebei Disaster Prevention Institute, seeks to recover not only its operation, but also Your place in history of science. The rebirth of a prodigious machine. To the question: How the hell will they replicate it? The researchers They explain that from ancient literary fragments and principles of modern structural dynamics. Thus, Xu and his team have proposed a functional model of the earthquakescomposed of three key subsystems: structure of excitementtransmission and closure. In the heart of the device he was A “Capital Pilar” that should not be interpreted as an unstable column, but as a pendulum -like arm (a kind of gigantic stick anchored to the ground) that amplified the seismic vibrations. With just 1 mm of displacement at the base, the tip of the pendulum moved up to five times more, activating a “L” levers system that released a ball in the mouth of the toad corresponding to the direction of the epicenter. A blocking mechanism prevented other dragons from reacting, thus respecting the Original description of “a dragon who speaks and seven that shut up.” Mathematical Wisdom. Team simulations indicate that the system responded reliably to displacements just 0.5 mmwithout emitting false alarms. Although modern knowledge of propagation of seismic waves suggest that a single instrument cannot determine with total precision the direction of the epicenter, Xu argues that the Historical records coincide with optimal geological alignments. As proof, appointment The Longxi earthquake From the year 138 AD, when the instrument would have detected a tremor 850 kilometers away, without feeling in Luoyang. The initial skepticism of the officials vanished when messengers on horseback confirmed The shaking days later. Even more revealing, he explains, is the jump in the frequency of earthquakes registered in the capital after the implementation of the artifact: in the previous 8 years they were only documented three local earthquakes; In the 58 years later, there were 23, in a region considered low seismicity. Zhang HENG: astronomer and political victim. ZHANG HENG It was not any inventor. His appointment as a great imperial astrologer in 115 (a position equivalent to the director of a modern national observatory) and his creation of an armilar sphere Able to map the sky with precision, they prove their domain in mathematics, astronomy and mechanics. But his invention could have been politically uncomfortable. In a context where natural disasters were interpreted as signals from heaven and threats to the mandate of the emperor, an instrument that “predicts” earthquakes could have been seen as subversive. Some scholars suggest that HENG’s abrupt retirement in 138 and his death the following year They were not casual. Xu duck that the loss of the original earthquakes (along with its technical diagrams) could be due to wars, political chaos or even the greed of powerful aristocratic families that would have hidden its existence. Recovered legacy. In a gesture loaded with symbolism, xu He recalled that only two bronze objects have been defined in Chinese history: Nine cauldrons of the Xia dynasty and this earthquakes. Now, the objective is ambitious: rebuilding the instrument using only materials and technical Advanced knowledge reached in ancient China. Beyond the material restoration, the project aspires to reinsert this jewel of engineering in the global narrative of science, as proof that humanity had already tried, long before satellites or artificial intelligence, unravel the Mysteries of the tremor From Earth. Along the way, the Heng’s featerased for centuries of oblivion, it could be closer to recovering its place among the great milestones of human thought. Image | KowlooneseSSPL In Xataka | The most revolutionary and rare writing machine was lost in 1940. Until someone received a message In Xataka | Of the Wright brothers to Wu Zhongyuan, a homemade helicopter

Some scientists have created a camera that detects faces at 100 km

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China continues to progress without technology brakes. Although many innovations focus on the civil sphere, others reinforce their military and intelligence power. Proof of this is an experimental system that promises to analyze objects kilometers away. We are talking about a technology that could promote an important leap in its espionage capabilities. The information comes of South China Morning Postwhich details how a team from the Aerospace Information Research Institute of the Chinese Academy of Sciences has achieved successful observations with an innovative laser system. This operates in optical wavelengths and helps obtain huge distance images, if certain conditions are met. A new observation system As we can see in the visual representation, the researchers displayed the system on a shore of the Qinghai lake, an immense Alpine lake in the remote northwest of China. On the other side, to 101.8 km awayThey installed a set of reflective rhymes. The impressive thing is that, despite the huge distance, the system managed to distinguish details of just 1.7 mm wide. The laser makes the difference. They say that it reaches an accuracy of 15.6 mm when measuring distances, which theoretically leaves the spy and telescope chambers with lenses, surpassing them by a factor of 100. Now, the observations must be made with optimal climatic conditions, stable wind, low cloudiness and, in observations of the orbit, clear skies. Although the tests have been performed on land, the Hongkonés newspaper points out that this technology could be used for espionage from space. Its unprecedented capacity to capture details would allow Identify faces from orbit Or, in reverse, analyze satellites from adversary countries with great precision from the surface of our planet. If the question is how they have achieved it, the answer is in a combination of innovations. To begin with, the researchers divided the laser beam into a 4×4 microlent matrix, which allowed to expand the optical opening of the 7.2 mm system (0.68 inches) to 68.8 mm (2.71 inches). With this approach, they managed to overcome the usual limitation between the size of the opening and the field of vision. In addition, they incorporated a specialized laser module capable of emitting signals with frequencies higher than 10 gigahecks. Thanks to this, the system reached an extremely fine range resolution, allowing distance measurements with great precision. At the same time, a narrow color spectrum was maintained to improve the resolution of the azimuththus optimizing detail detection. Images | Chinese Academy of Sciences | Bernard Hermant | POT In Xataka | Anuuu is thrown over another problem: China prepares to lead the manufacture of chips for advanced weapons

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