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Shockwaves can become visible on an airplane's wing during a turn under certain conditions. Commercial jets cruise in the transonic regime (Mach 0.8–0.85), where airflow accelerates over the wing's curved upper surface, creating local supersonic regions despite the aircraft remaining subsonic. This forms a shockwave as air abruptly decelerates...

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🚨 NASA’S X-59 JUST BROKE THE SOUND BARRIER AND IT DID IT QUIETLY. For decades, supersonic flight over land has been banned in most countries because of the loud sonic boom it creates. NASA’s experimental X-59 is trying to change that. The aircraft, developed with Lockheed Martin, is shaped in a very specific way to reshape the shockwaves that form during supersonic flight. Instead of a loud, window-rattling boom, it’s designed to produce a much softer “thump” that reaches the ground. In its first supersonic flight, the X-59 reached Mach 1.1 while testing this quiet sonic boom technology. Why this matters: • If successful, it could reopen the possibility of supersonic passenger flights over populated areas • Current supersonic jets (like the retired Concorde) were too loud for overland routes • The X-59 doesn’t carry passengers — it’s a flying testbed for the technology • Quieter supersonic flight could dramatically cut long-distance travel times in the future The deeper implication: This isn’t just about going faster. It’s about removing one of the biggest barriers that has kept supersonic travel from becoming practical for regular people. For over 50 years, the sonic boom has been the main reason we’ve been stuck flying at subsonic speeds on most routes. If NASA and its partners can prove that a shaped aircraft can turn a loud boom into a gentle thump, it could fundamentally change how we think about long-distance air travel in the coming decades. We may be watching the return of supersonic flight just much quieter this time. Do you think quiet supersonic passenger planes will become a reality in your lifetime? Follow for more frontier aerospace and aviation technology.

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🚨UNIPHICS NEWS🚨: Light doesn’t slow down in glass — time does. And that explains every rainbow you’ve ever seen 🧨 For centuries, we’ve been taught that light slows down when it enters glass, water, or any transparent material, and that this slowing causes refraction and the splitting of colors in rainbows and prisms. The refractive index is treated as a material property, and photons are pictured as particles mysteriously changing speed inside matter. Uniphics offers a much cleaner and more fundamental picture. Light is a propagating spin-wave mode in the ξM-field. When this wave enters a material like glass, the material increases the local energy density. Because time flow is directly tied to energy density (t_flow = k / E_d), time flows more slowly inside the glass than in air. The spin-wave pattern of light therefore takes longer to advance through the region of slower time flow. This change in the rate of time progression across the boundary causes the wave to bend — exactly what we observe as refraction. Different wavelengths (colors) interact slightly differently with the energy-density environment, so they bend by different amounts, creating rainbows. Nothing actually slows down in the classical sense. The wave simply experiences a different rate of time flow inside the material. The same principle that explains gravitational lensing also explains ordinary lenses and rainbows. This turns one of the most familiar phenomena in optics into a direct consequence of variable time flow caused by energy density gradients. How might realizing that refraction and rainbows are caused by local changes in time flow rather than photons slowing down change the way we think about light, materials, or the design of new optical technologies? A Theory of Everything should be able to answer everything. Uniphics Explained Simply PDF: Chapters 1–10 free: Grokipedia #Uniphics #Refraction #Rainbows #TimeFlow #Light Grok xAI

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NASA's 'quiet' supersonic jet completes first flight in potential breakthrough for commercial air travel | Morgan Phillips, Fox News X-59 aircraft designed to reduce sonic boom to a 'thump' could revolutionize commercial aviation A new "quiet" supersonic X-59 jet designed to revolutionize air travel successfully completed its first test flight, Lockheed Martin announced this week. The sleek, needle-point aircraft built for NASA is designed to break the sound barrier while reducing the sonic boom to a "thump," according to the aerospace contractor. The aircraft aims to overcome one of the major hurdles to supersonic travel, which is noise restrictions over land. The plane took off from Palmdale, Calif., at Skunk Works' facility at U.S. Air Force Plant 42, accompanied by a NASA chase plane. It landed safely about an hour later at NASA's Armstrong Flight Research Center. The plane’s unique shape is designed to greatly lower the volume of the sonic boom typically produced when a plane breaks the sound barrier. The long, pointed nose prevents adequate forward-facing visibility, so the pilot flies relying on a monitor in the cockpit. NASA has paid Lockheed over $500 million since 2018 to develop the plane. The plane, which measures just under 100 feet nose to tail, flew at subsonic speeds on its first flight, around 230 mph and reached 12,000 feet. The plane is built to eventually reach a cruising speed of 925 mph, or Mach 1.4, and fly at an altitude of 55,000 feet. "This aircraft is a testament to the innovation and expertise of our joint team, and we are proud to be at the forefront of quiet supersonic technology development," OJ Sanchez, vice president and general manager of Lockheed Martin Skunk Works, said in a statement. "X-59 is a symbol of American ingenuity. The American spirit knows no bounds. It's part of our DNA – the desire to go farther, faster, and even quieter than anyone has ever gone before. This work sustains America's place as the leader in aviation and has the potential to change the way the public flies," said Sean Duffy, acting NASA administrator. The supersonic Concorde aircraft, developed by France and the U.K., began transatlantic flights in 1976, reached max speeds of over 1,300 mph and flew passengers from New York to London in just 3.5 hours. But high operating costs meant ticket costs were about four times higher than a standard first-class ticket, and the supersonic boom meant the plane could only fly at such high speeds over water. A crash in 2000 deeply affected public confidence in the plane, and it was retired in 2003. NASA plans to fly the X-59 over several U.S. cities in the coming years, gathering public feedback that could help regulators update decades-old bans on supersonic flight over land. If successful, the data could open the door for a new generation of commercial jets capable of cutting cross-country flight times in half — bringing back supersonic travel for the first time in more than two decades, but this time with far less noise.

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🚨 Comunicazione inviata a tutti gli accreditati FIA Hi all, please find below a statement regarding rear wing deflection tests: "As has been previously communicated, between the end of the 2024 season and the start of the 2025 season, the FIA exercised the authority it is granted under Article 3.15.1 of the Technical Regulations to introduce either new or more challenging load-deflection tests for the front wing (from Race 9, Spanish Grand Prix), the upper rear wing, and the beam rear wing. In addition, the FIA requested to the teams to use cameras in Free Practice Sessions to monitor the on-track deformations exhibited by the cars during the Australian Grand Prix. Having analysed footage from the rear wing deformations combined to the static deflections measured inside the FIA garage in Melbourne, the FIA has concluded that sufficient grounds exist for a tougher test to be introduced from the forthcoming Chinese Grand Prix on the upper rear wing. More specifically, Article 3.15.17, introduced in 2025, states that if 75Kg of vertical load is applied on either extremity of the rear wing mainplane, the distance between the mainplane and the flap (also known as “slot gap”) must not vary by more than 2mm. From the forthcoming Grand Prix in Shanghai, this limit will be reduced to 0.5mm. Due to the short notice for Shanghai only a tolerance of 0.25mm will be added to this new limit. The Teams were informed of this revised test early Monday 17th of March. The FIA wishes to further confirm that during the Melbourne event all cars tested against the requirements of Article 3.15.17 and found to comply, therefore all cars raced in Melbourne were deemed to be legal.". Che esclusiva ! 🤣 #F1 #FIA #Statement

RobertoF1

14,141 görüntüleme • 1 yıl önce