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Researchers have developed a microscopic 3D-printed optical device that can efficiently combine light from dozens of small semiconductor lasers into a single multimode optical fiber with very low loss. The team demonstrated photonic lanterns that multiplex 7, 19, and 37 multimode VCSEL lasers directly into a fiber while preserving brightness and easing alignment constraints. By […] We all know that stars radiate light and much more. But radiation belts can also surround many other celestial bodies, such as planets. These belts do not generate particles themselves—the belts receive them from nearby stars—but they accelerate the speed of particles in a way that has remained elusive. Go to Source […] By controlling magnetic fields using light, a team of researchers led by NTU scientists has solved a long-standing challenge to precisely direct electric currents produced by quantum materials. Their findings unlock new avenues for controlling the flow of electricity through such materials and could herald the age of energy-efficient quantum computing devices. The research is […] Up until now, exoplanet surveys have mostly focused on nearby, bright stars that are sun-like or are red dwarfs, which are known to frequently host planets. While astronomers have discovered thousands of planets this way, a new study, published in the Monthly Notices of the Royal Astronomical Society, seems to have found a more efficient […] Billions of light years away in a remote part of the universe, two neutron stars—the ultradense remnants of dead stars—collided. The catastrophic cosmic event sent light and particles, including a sudden flash of gamma rays, streaming through the universe. These gamma rays traveled for 8.5 billion years before reaching Earth. Go to Source […] NYPD Chief Aaron Edwards tackled the suspect while Sgt. Luis Navarro ran toward a lit improvised explosive device to protect nearby protesters Go to Source While Fort Lauderdale PD officers were handling a separate incident, the man approached the scene, fired shots into the air and later lowered his gun toward officers Go to Source Multiple Hartford Police officers spoke with the man, pleading with him to drop the knife as he continued to approach multiple officers despite a TASER deployment Go to Source The European Space Agency said it is investigating a fireball that streaked across the skies of Europe on the weekend before reportedly punching a football-sized hole in the roof of a German home. Go to Source NASA’s Van Allen Probe A is expected to reenter Earth’s atmosphere almost 14 years after launch. From 2012 to 2019, the spacecraft and its twin, Van Allen Probe B, flew through the Van Allen belts, rings of charged particles trapped by Earth’s magnetic field, to understand how particles were gained and lost. The belts shield […] Due to climate change, plants’ pollination season has been growing longer and longer. As a result, people are exposed to allergens for extended periods each year, raising a major public health concern. Researchers from Embry‑Riddle Aeronautical University, the University of Rouen Normandy and the University of Lille have developed an advanced computational model of outdoor […] Quantum mechanical effects are known to be easily disrupted by disturbances from the surrounding environment, commonly referred to as noise. To minimize these disturbances, physicists often study these effects in small and carefully controlled systems, in which environmental noise can be minimized. Go to Source No two snowflakes may be the same, but models that fail to take these variations into consideration often fall short when calculating the way snow accumulates on roofs. In Physics of Fluids, researchers from Harbin Institute of Technology in China modeled the way snow gathers on a roof based on snowflake size and distribution. Go […] A new University of Mississippi study shows that some sound waves don’t just move forward—they also move slightly to the side. Understanding this movement could help researchers develop more precise acoustic tools. Likun Zhang, associate professor of physics and astronomy and senior scientist at the National Center for Physical Acoustics, published his team’s study on […] Emir Balat and Ibrahim Kayumi face numerous federal charges, including a terror charge and using a weapon of mass destruction charge, after the weekend incident outside the mayor’s mansion Go to Source |
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