#physics — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #physics, aggregated by home.social.
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Theory of Fluids Enters the 21st Century
… the Navier-Stokes equations are a consequence of symmetries …
#physics #FluidScience #fluiddynamics #fluidmechanicshttps://www.quantamagazine.org/theory-of-fluids-enters-the-21st-century-20260817/
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wonder what the ebike's heart looks like? - here...
This part reminds of that iron man scene where Tony Stark changed his "heart" (his reactor) and pepper put it in "proof that Tony Stark has a heart" box.
#ebike #bicycle #engineering #gear #yusei #planetarygears #ironman #physics
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RE: https://scicomm.xyz/@LIGO/117111510073074003
Happy birthday, GW170817! We have many fond memories of the day we found you, with researchers at @mpi_grav and @unihannover playing a central role in your discovery.
Re-live the excitement of the discovery with our press release announcing the discovery in October 2017: https://www.aei.mpg.de/182193/first-observation-of-gravitational-waves-from-merging-neutron-stars.
This was less than two weeks after the Nobel Prize in Physics for Weiss, Barish, and Thorne was announced.
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3D-printed ‘balloon banjo’ is ready for pickin’
https://fed.brid.gy/r/https://www.popsci.com/science/3d-printed-balloon-banjo-video/
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Subscribe to my newsletter for space updates and a FREE astronomy ebook! https://blog.joshuniverse.com/newsletter/ #space #astronomy #physics #science -
Bugs me that people still don't really know the difference between centrifugal and centripetal force even when correcting other people in comment sections...
They're literally opposing forces, like the difference between gravity and the normal force :blobcatbusiness:
One is technically 'imaginary' (centrifugal force is just inertia) but that doesn't mean the other is more correct in every situation. :blobcattableflip:
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An Iceberg Flips
Footage of a massive iceberg flipping in Greenland has gone viral. The feat took place off the coast of Ilulissat and was caught on a nearby livestream camera. Icebergs shift like this because they melt unevenly, with submerged areas melting faster. As the underwater shape of the iceberg changes, the buoyant forces shift relative to the iceberg’s center of mass, and it flips, eventually settling into a (temporarily) stable orientation. This situation is simpler in the lab version, though; as the video here shows, real icebergs can also rapidly lose mass if they start breaking apart. That, too, can necessitate a flip. (Video and image credit: AfarTV; via Colossal)
https://www.youtube.com/watch?v=UufMqwyO7pY
#buoyancy #climateChange #fluidDynamics #iceberg #melting #physics #science #stability -
EPFL researchers have developed a graphene device that measures the tiny, fractional electric charges carried by some of the strangest objects in quantum physics.
Find out more: https://actu.epfl.ch/news/how-do-you-measure-one-third-of-an-electron/
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The power spectrum of imaging detector noise is relatively featureless. But while I work it out using Lagrange's trigonometric identities, I call the APS a bunch of sleazebags and discuss a bucket of yuck. Good times!
https://www.skewray.com/articles/spatial-distribution-of-imaging-sensor-noise
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The phenomenon of double reflection occurs when celestial bodies align over calm waters, creating a symmetrical visual experience through specular reflection. This image captures the Moon and Venus as they appear on the horizon, illustrating how light interaction with smooth surfaces follows the law of reflection. Observations of these planetary conjunctions provide valuable data on orbital mechanics and atmospheric scattering, serving as a reminder of the precise geometric relationships within our solar system. Understanding these optical events bridge the gap between astronomical observation and classical physics.
#space #astronomy #physics
@[email protected] @[email protected] @[email protected] @[email protected] @[email protected] @[email protected] @[email protected] @[email protected] #space #science #nasa #astronomy -
New #openaccess publication #SciPost #Physics
Semi-universality of CFTd entropy at large spin
Harsh Anand, Nathan Benjamin, Vipul Kumar, Shiraz Minwalla, Jyotirmoy Mukherjee, Sridip Pal, Asikur Rahaman
SciPost Phys. 21, 042 (2026)
https://scipost.org/SciPostPhys.21.2.042 -
RE: https://masto.ai/@chemoelectric/117097828728616128
How many more are going to be like the one professional set theorist who saw it as nothing more than an opportunity to heckle the amateur, when presented with this absolute proof of the consistency of a number system in which (a) is contained a unified field theory that derives the physical constants such as electron charge to mass ratio, the gravitational constant, etc., (b) in which it is easy to prove conjectures such as Goldbach, Collatz, twin primes, etc.? #mathematics #physics #science
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💁🏻♀️ ICYMI: 🔬🌸 Japanese #nature photographer Pendora (ぺんどら) captures tiny globular #springtails measuring around 0.3 mm in length.
These wetland micro-arthropods display face-to-face courtship interactions and use a spring-loaded tail organ called a furcula to execute high-speed jumps that look like #teleportation.
👉 Learn more: https://seethis.tv/post/odoriko-tobimushi-sminthurides-springtails-video
#animals #arthropods #biology #cute #hexapod #macro #mating #microscopy #physics #science #wetlands #insects #macrophotography #japan #microbiology #wildlife #entomology #photography #zoology #tksst #video
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Scientists discovered an unknown quantum phase of matter
https://www.neowin.net/science/scientists-discovered-an-unknown-quantum-phase-of-matter/
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🌌 5-min random three-body chaos compilation | 7 simulations, all unique, none predictable
💥 6 collisions · 1 escapes
⏱ Longest run: 1,995 years simulated
🌀 Most chaotic: 40.0% chaos score, 804 close approaches
📊 Avg simulated time: 755 years per simulation
🎲 Hardest to find: 124 attempts to survive 88 yrs minimum
⚡ Fastest escape: 9.9 km/s (rel. pair: 14.5 km/s)
💥 Hardest impact: 853.9 km/s*Playing god with gravity.*
¿Ya has visto parpadear el universo?
#ThreeBodyProblem #GravitationalChaos #Physics #Simulation
https://www.youtube.com/watch?v=_2bBgQjhQs4 -
#Physics Wave-particle duality is a catchy phrase. And physicists understand what is meant by it, but as a pop-sci communication tool?... or a phrase that helps students?... it tends to be confusing.
For example, in teaching the photoelectric effect to some high school students right now, I steer away from it. I mean, I can't ignore it all together (because it's so ubiquitous) but I start by using the phrase "wave-packets" and take a while to even call these wave-packets, photons.
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The Anthropic Principle suggests the universe's laws appear fine-tuned for life. Is this coincidence, design, or something else? What do you think makes life possible?
#AnthropicPrinciple #Cosmology #Physics #Philosophy #Universe
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Alright, future engineers!
**Momentum:** An object's 'quantity of motion,' defined by its mass & velocity.
Ex: `p = m * v`. A train has huge momentum, even at low speed.
Pro-Tip: Momentum is a vector! Direction is key. Its conservation is vital for collision problems.
#Physics #Mechanics #STEM #StudyNotes -
Wow 🤯
Dimensions explained in a way I actually understand... -
2026 August 17
A Golden Corona Eclipse
* Image Credit & Copyright: Rui Santos (Living Impressions
https://livingimpressions.online/
https://www.instagram.com/living.impressions/Explanation:
This total solar eclipse appeared not only poetically beautiful but scientifically interesting. Usually the solar corona appears white, and to some observers the corona of last week's total solar eclipse did appear this pearly color. But this time, totality observers in Spain saw a corona that appeared unusually golden. For one reason, from Spain, the totality occurred when the setting Sun was near the horizon. That low, sunlight travels through a large amount of air which scatters out blue light. An unusual amount of smoke in the air from nearby forest fires acted as a second filter, further scattering the remaining blue tones and deepening the already gold-dominated light. The HDR-processed, multiple-exposure featured image was captured from Benavente, Spain last week. One thing that did not appear golden was a hydrogen-glowing prominence that hovered over the Sun's left edge -- its original bright pink color survived.
https://apod.nasa.gov/apod/ap230516.html
https://apod.nasa.gov/apod/ap260814.html
https://en.wikipedia.org/wiki/Spain
https://www.optics4kids.org/what-is-optics/scattering/why-is-the-sky-blue-why-are-sunsets-red
https://www.optics4kids.org/what-is-optics/scattering/why-is-the-sky-blue-why-are-sunsets-red
https://media.istockphoto.com/id/1215895183/photo/portrait-of-a-ginger-cat-the-cat-in-the-medical-face-mask-outdoors-medical-concept.jpg
https://firms.modaps.eosdis.nasa.gov/map/#d:24hrs;@-5.9,35.0,3.1z
https://apod.nasa.gov/apod/ap260730.html
https://science.nasa.gov/ems/09_visiblelight/
https://en.wikipedia.org/wiki/High_dynamic_range
https://www.instagram.com/p/Db_yz70jS86/
https://youtu.be/GqtSSkrpk6E
https://en.wikipedia.org/wiki/Spain
https://en.wikipedia.org/wiki/Hydrogen-alpha
https://apod.nasa.gov/apod/ap230801.html
https://science.nasa.gov/sun/
https://apod.nasa.gov/apod/ap170912.htmlhttps://apod.nasa.gov/apod/ap260817.html
#space #sun #earth #moon #solareclipse #solareclipse2026 #astrophotography #photography #science #astronomy #physics #nature #NASA #apod
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Principia 2026.08.16 has been released. This is a big update for desktop platforms, as it replaces all the game's GTK dialogs with new ones implemented using Dear Imgui. Among other things.
Read the release announcement:
