Foundations of physics (Kazemi)

We just saw the exact moment a star exploded for the first time ever. Astronomers have achieved a rare feat: imaging the exact moment a massive star detonated—and the explosion was anything but spherical. SN 2024ggi, a supernova located 22 million light-years away in the spiral galaxy NGC 3621, was detected a mere 26 hours after ignition. This extraordinarily early discovery allowed researchers to train the European Southern Observatory’s Very Large Telescope in Chile on the event while it was still in its infancy. Using the technique of spectropolarimetry—which analyzes the polarization of light to reveal geometric structure—the team uncovered a surprising truth: the expanding shockwave was distinctly aspherical, elongated into an “olive” or prolate shape along one primary axis. This asymmetry means the catastrophic rebound following the star’s core collapse did not propagate uniformly in all directions, directly contradicting the long-standing assumption that the deepest layers of a core-collapse supernova explode spherically. The progenitor was a red supergiant 12–15 times more massive than the Sun that had exhausted its nuclear fuel, triggering gravitational collapse of its iron core. In most supernovae, the initial shape of this breakout is quickly obscured as the blast wave slams into the star’s outer envelope. Here, however, astronomers captured polarized light signatures of the still-unobscured ejecta, freezing the explosion’s geometry in time. The discovery carries far-reaching consequences. It strongly suggests that asymmetry is common, if not universal, in the earliest phases of massive-star deaths. Current theoretical models, which often assume spherical symmetry at the core, will need significant revision. Moreover, these distorted explosions could help explain observed peculiarities in supernova remnants, the production of gamma-ray bursts, and the kicking of neutron stars and black holes to high speeds at birth. By catching a star in the act of dying asymmetrically, SN 2024ggi has given us a vivid glimpse into the violent, chaotic physics that govern the final heartbeat of the universe’s most massive stars. [🎞️ Artist’s animation of a supernova explosion] [Unique shape of star’s explosion revealed just a day after detection. ESO, 2025] - Massimo - @letsseemore

Physicist delineates limits on the precision of quantum thermal machines https://phys.org/news/2025-11-physicist-delineates-limits-precision-quantum.html

The mesmerizing floating plasma toroid. - ViralRush ⚡- @letsseemore

Quantum sensor based on silicon carbide qubits operates at room temperature https://phys.org/news/2025-11-quantum-sensor-based-silicon-carbide.html

Defining work and heat in quantum systems: Laser light coherence offers a consistent approach https://phys.org/news/2025-11-quantum-laser-coherence-approach.html

The Quantum Foundation Collection https://promo.aps.org/quantum-foundation-collection?_gl=1*15shs2e*_gcl_au*MTE1NTg3Njk2My4xNzYzOTc5MzEy*_ga*MTMxNjM0MTE1Ni4xNjQ5NjQzMTMy*_ga_ZS5V2B2DR1*czE3NjM5NzkzMTMkbzYwJGcwJHQxNzYzOTc5MzEzJGo2MCRsMCRoMTgzNDQ0MDU0NQ..

https://www.nature.com/articles/s41598-024-71907-0 https://youtu.be/-bArT2o9rEE?si=Oq-3draSfo9WnWwV

David Baker, the 2024 #NobelPrize laureate in chemistry, has achieved the seemingly impossible feat of building entirely new kinds of proteins. In recent years, one incredible protein creation after the other has emerged from Baker’s laboratory. They range from new nanomaterials where up to 120 proteins spontaneously link together (see animation) to proteins that function as a type of molecular rotor. Animation: ©Terezia Kovalova/The Royal Swedish Academy of Sciences - The Nobel Prize - @letsseemore

Cosmic Paradox Reveals the Awful Consequence of an Observer-Free Universe https://www.quantamagazine.org/cosmic-paradox-reveals-the-awful-consequence-of-an-observer-free-universe-20251119/

🎥 تبیین‌های آگاهی-پدیداری در قالب یکسری کارکردها یا بازنمایی‌ها به نوعی کنارگذاشتن مسئله اصلی است. @cosmos_physics

What is time? Rather than something that 'flows,' a philosopher suggests time is a psychological projection https://phys.org/news/2025-11-philosopher-psychological.html

Old ‘Ghost’ Theory of Quantum Gravity Makes a Comeback | Quanta Magazine https://www.quantamagazine.org/old-ghost-theory-of-quantum-gravity-makes-a-comeback-20251117/

مغز و زمان https://www.nature.com/articles/s41583-025-00987-2

“So much of physics comes down to understanding geometry. And often in surprising ways.” —Jonathan Sorce, a theoretical physicist at Princeton University https://www.quantamagazine.org/what-is-a-manifold-20251103/ https://search.app/?link=https://x.com/QuantaMagazine/status/1989772644757942610&utm_source=dsdf,sharefoc,,sh/x/discover/m1/4&utm_campaign=dsdf,sharefoc,,sh/x/discover/m1/4

The prize at the end of the quantum tunnel | Nature Physics https://www.nature.com/articles/s41567-025-03119-w

🔖 بادبان با همکاری انجمن علمی ژرفا آخرین جادوگر

ساخت و ابداع بیان تصویری و قابل‌تجسم از «جاذبه» [نزد نیوتن] یک انتخاب خوش‌شناس بود، لکن همزمان این وسوسه را ایجاد می‌کرد که در آن به دنبال یک توضیح باشیم و از «اعتراف آشکار به جهل کامل» بپرهیزیم. به گفته‌ی لیشتنبرگ، خوب است که به علل ناشناخته نامی داده شود، اما نباید گذاشت فراموش شود که این‌ها تنها نام هستند و نه توضیح: همان‌طور که زبانِ تصاویر، خرافات را می‌آفریند، استعاره‌ها در فیزیک نیز برای متفکر بی‌احتیاط، اغلب خطاهای مشابهی را ایجاد می‌کنند که می‌تواند برای فلسفه به همان اندازه مضر باشد که آن [خرافات] برای دین. چه بسا اگر نیوتن این پدیده را «میل یا اشتیاق» نامیده بود، چه استنتاج‌ها که از آن نمی‌کردند! - بلومنبرگ؛ حقیقت عریان

باحضور - دکتر سعید زیباکلام استاد فلسفه دانشگاه تهران - دکتر قدیر جعفری استاد فیزیک دانشگاه فرهنگیان 👌 شرکت در این برنامه رایگان است اما برای ورود به دانشگاه لطفا فرم را پر کنید: https://digiform.ir/w30a23511 👈 مکان: دانشگاه صنعتی شریف؛ آمفی‌تئاتر مرکزی 📆 تاریخ: چهارشنبه ۲۸ آبان، ساعت ۱۵:۳۰ الی ۱۹ @Baaadban @Zharfa90

لَخَلْقُ السَّمَاوَاتِ وَالْأَرْضِ أَكْبَرُ مِنْ خَلْقِ النَّاسِ وَلَٰكِنَّ أَكْثَرَ النَّاسِ لَا يَعْلَمُونَ ﴿۵۷﴾ قطعاً آفرینش آسمان‌ها و زمین بزرگ‌تر [و شکوهمندتر] از آفرینش مردم است، ولی بیشتر مردم نمی‌دانند. قرآن غافر ✅ حلقه‌ی مطالعاتی تمنا 🌐 @TamanaCircle