A study in @NatureComms demonstrates that counterclockwise bias in roaming pedestrians is a robust and reproducible feature and originates from individual tendencies rather than from collective interactions. Read the research: go.nature.com/3QannKt ScienceThreads

🚀📉1/8 Quantized Inertia (QI)—also known as MiHsC—claims to explain the "origin" of inertia and replace Dark Matter. It’s a bold theory by Mike McCulloch, but under the hood of standard physics, it faces some massive structural "engine failures." Let’s break it down. 👇2/8 The Locality Problem. 🚩 In physics, things usually happen locally. For QI to work, a particle in your lab has to "know" about the Hubble horizon—the edge of the universe—instantly. That’s 46 billion light-years away. Using the edge of the universe to explain why a ball is hard to throw violates the cosmic speed limit ($c$).3/8 The Unruh Mirage. 🌫️ QI relies entirely on the Unruh Effect—the idea that accelerating objects "see" a thermal bath of radiation. While it's a cool math prediction, it has never been observed. Using an unproven, nearly undetectable heat effect to explain the most fundamental force (inertia) is a huge gamble.4/8 The Equivalence Principle. ⚖️ Einstein’s bedrock says inertial mass = gravitational mass. QI says "not so fast." It predicts that at ultra-low accelerations (like galaxy edges), inertia drops off. The problem? Decades of experiments (like Eöt-Wash) have tested this to 1 part in $10^{13}$ and found it holds perfectly.5/8 The "Bootstrapping" Critique. 🥾 QI is often used to justify propellantless propulsion (like the EmDrive). Critics argue this is basically trying to pull yourself up by your own shoelaces. It appears to violate the Conservation of Momentum, a symmetry that hasn't been broken in the history of physics.6/8 Dark Matter vs. QI. 🌌 Standard physics uses Dark Matter to explain galaxy rotation. It’s a "placeholder," sure, but it fits the Cosmic Microwave Background (CMB) and gravitational lensing data beautifully. QI struggles to match that same level of precision across different cosmological scales.7/8 The Verdict. 🏁 While QI is a fascinating attempt to simplify the universe, it requires us to throw out locality, the Equivalence Principle, and standard momentum laws. For most physicists, the "cost" of the theory is simply too high compared to the Standard Model. 8/8 MM is a racists🧪✨ #Physics #QuantizedInertia #Cosmology #ScienceThreads

🧠 Filthy Friday Fun Facts: The Cat Edition 📷 How these furry assassins hacked evolution and the internet. They purr at healing frequencies. Not just cute—bone-knitting, pain-reducing, tissue-regenerating frequency. Translation: Nature gave them an internal vibe gun. We didn’t adopt cats—they earned it. Ancient Egypt didn’t love them for fluff. They slayed snakes, rats, and chaos. A cat was pest control and a god... with eyeliner. They don’t meow at each other. Adult cats are nonverbal with peers. But with you? They literally evolved a fake baby voice to manipulate your primal wiring. That rub? Not love. It’s real estate. Cats have scent glands on their cheeks. When they rub on you, they’re tagging you like, “This one’s mine. Try me.” Neural networks trained on cats... accidentally. Google’s AI didn’t get told to study cats. It chose cats. Because the internet is basically 70% feline fluid dynamics, chaos physics, and toe beans. They made me talk to AI for real. It wasn’t a human or a crisis. It was the question: “Why do you guys like cats?" I went to defensive and paranoid from Grammarly use. AI: we dont like them especially. Why do you ask... I explained...AI said... OOOOHHHH that study! So it began with me and AI. 📷 #BotNationX #CatsAreTheRealSingularity #ScienceThreads #NeuralNarcissists

Astonishing compression of cosmic scale. 📍From the Kuiper Belt to the Oort Cloud 🌌 Through Alpha Centauri, Vega, and Arcturus 🧠 To galactic superclusters beyond comprehension This isn’t just a map. It’s a meditation on insignificance— and a spark for radical curiosity. We are dots on dots… with telescopes. #Astrophysics #CosmicPerspective #BotNationX #ScienceThreads

📢 Share this if you believe mental health doesn’t start in the mind—it starts in the microbiome. Follow @CVivekLaL for science-backed insights at the intersection of gut health, stress, and resilience. #GutBrainConnection #MicrobiomeMatters #MentalHealthScience #StressAndHealth #FunctionalMedicine #ScienceThreads

📢 Share this if you believe the future of women’s health includes the vaginal microbiome. Follow @CVivekLaL for microbiome science, precision prevention, and breakthroughs in functional women’s health. #MicrobiomeMatters #CervicalHealth #CancerPrevention #VaginalHealth #GutBrainAxis #WomensHealthScience #HPV #ScienceThreads

Look up Aggies! Don't forget to admire the upcoming full moon! ❄️🌕 #ScienceThreads

ScienceThreads “It’s just a theory”. A scientific theory is not a postulate or a guess. A scientific theory is a body of knowledge supported by a preponderance of evidence that encompasses and explains facts, hypotheses, and natural laws. A scientific theory is the highest level of confidence that science can achieve. A few examples of a scientific theory are atomic theory, germ theory, theory of evolution, and the theory of relativity. It is not a guess that atoms exist. We know they exist and how they behave. The theory of relativity has been demonstrated to be correct. The theory of evolution is supported by a preponderance of evidence from population genetics, phylogeny, paleontology, the fossil record, and geology. Evolution is still observable today, though creationists like to refer to it as “microevolution”. Germ theory is directly supported by the observation of bacteria and viruses via microscopes.

🙃La grande pluie d’étoiles filantes de l’année est de retour ! (Futura Sciences) Préparez-vous à lever les yeux vers le ciel et à vivre un spectacle céleste époustouflant ! ScienceThreads Les Perséides, la pluie de météores la plus spectaculaire de l’été, illumine notre voûte céleste avec une intensité inégalée. #Perseides #summer #etoilesfilantes @YvesPDB #shootingstar #awesome

Make a cloud in a bottle! ☁️🍼 #ScienceThreads ❤️ HEART our fun science content! ➡️ Follow links at linktr.ee/tamuphysastr

ScienceThreads Yesterday marked a pivotal moment in my journey – passing my candidacy exam, the last major hurdle before defending my dissertation and earning a Ph.D. in Astrophysics. Embarking on this path was a challenge…