Lie groups are crucial to some of the most fundamental theories in physics
https://www.quantamagazine.org/what-are-lie-groups-20251203/
#HackerNews #LieGroups #Physics #Theories #Mathematics #QuantumMechanics #FundamentalScience
Billy Smith
boosted
“500,000-km Solar Prominence Eruption”
It’s difficult at times to fathom the scale and power of fluid dynamics beyond our day-to-day lives. Here, twists of the Sun‘s magnetic field propel a jet of plasma more than 500,000 kilometers out from its surface in an enormous solar prominence eruption. To give you a sense of scale for this random solar burp, that’s bigger than ten times the distance to satellites in geostationary orbit. (Image credit: P. Chou; via Colossal)
#astrophysics #fluidDynamics #fluidsAsArt #magnetohydrodynamics #physics #science #sun
Luke Drury
boosted
The “Computational Relativistic Astrophysics” department at the @mpi_grav in Potsdam announces the opening of several postdoctoral appointments.
Each postdoctoral position will be fully‑funded for a duration of 2 to 3 years and will offer benefits such as on‑site childcare and further family‑support services.
ℹ️ https://www.aei.mpg.de/1320962/cra-postdoc-2026
* Work in a world‑class team alongside two group leaders, a senior scientist, and a vibrant community of postdocs and PhD students.
* Do cutting‑edge science in relativistic astrophysics including neutron star mergers, nucleosynthesis, stellar core collapse and explosion, the formation and evolution of very massive and supermassive black holes, and multi-messenger astrophysics.
* You will have access to high-performance computers at Max Planck Computing and Data Facility
🗓️ Application deadline (full consideration): 21 December 2025
🗓️ Start date: from 1 September 2026
#FediHire #Postdoc #PostdocCareers #GravitationalWaves #Physics #Potsdam #Berlin
I really miss the CRC Handbook. Leafing through that big volume was much more fun than looking something up on the web. I need to find an old copy for my office just to have that old school lab feeling again.
Learning Feynman's Trick for Integrals
https://zackyzz.github.io/feynman.html
#HackerNews #FeynmanTrick #Integrals #Learning #Physics #Math #Hacks #Education
The “Computational Relativistic Astrophysics” department at the @mpi_grav in Potsdam announces the opening of several postdoctoral appointments.
Each postdoctoral position will be fully‑funded for a duration of 2 to 3 years and will offer benefits such as on‑site childcare and further family‑support services.
ℹ️ https://www.aei.mpg.de/1320962/cra-postdoc-2026
* Work in a world‑class team alongside two group leaders, a senior scientist, and a vibrant community of postdocs and PhD students.
* Do cutting‑edge science in relativistic astrophysics including neutron star mergers, nucleosynthesis, stellar core collapse and explosion, the formation and evolution of very massive and supermassive black holes, and multi-messenger astrophysics.
* You will have access to high-performance computers at Max Planck Computing and Data Facility
🗓️ Application deadline (full consideration): 21 December 2025
🗓️ Start date: from 1 September 2026
#FediHire #Postdoc #PostdocCareers #GravitationalWaves #Physics #Potsdam #Berlin
“500,000-km Solar Prominence Eruption”
It’s difficult at times to fathom the scale and power of fluid dynamics beyond our day-to-day lives. Here, twists of the Sun‘s magnetic field propel a jet of plasma more than 500,000 kilometers out from its surface in an enormous solar prominence eruption. To give you a sense of scale for this random solar burp, that’s bigger than ten times the distance to satellites in geostationary orbit. (Image credit: P. Chou; via Colossal)
#astrophysics #fluidDynamics #fluidsAsArt #magnetohydrodynamics #physics #science #sun
A 6-year survey mapped the biggest structures in the universe. The results are beautiful...and, annoyingly, they fit nicely with the current model of cosmology.
We know there's something missing from that model, but figuring out *what* is not easy!
https://news.uchicago.edu/story/scientists-release-new-survey-biggest-objects-universe #space #science #nature
Contrary to all those click-baity headlines about how cosmology is "broken," scientists are mostly frustrated that it's *not* obviously broken.
When we can find the real cracks, we'll have a path to deeper understanding.
https://noirlab.edu/public/news/noirlab2408/ #space #astronomy #science #physics
Breakthrough in antimatter production
https://home.cern/news/news/experiments/breakthrough-antimatter-production
#HackerNews #antimatter #breakthrough #CERN #physics #science #news
Anke
and 1 other
boosted
Just eight days ago, I gave a popular science talk at @mpi_grav about colorful phenomena in the sky, and now – boom!
Just minutes ago, there were beautiful iridescent clouds (https://en.wikipedia.org/wiki/Cloud_iridescence) here, north of Hanover, Germany.
Here, light is diffracted by tiny droplets in the clouds, creating these typical mother-of-pearl colors.
#Light #Physics #Photography #NaturePhotography #Diffraction #AtmosphericOptics
Thin clouds in a pale blue sky. The edges of the clouds shimmer in mother-of-pearl colors.
Thin clouds in a pale blue sky. The edges of the clouds shimmer in mother-of-pearl colors.
Thin clouds in a pale blue sky. The edges of the clouds shimmer in mother-of-pearl colors.
Thin clouds in a pale blue sky. The edges of the clouds shimmer in mother-of-pearl colors.
Calculus for Mathematicians, Computer Scientists, and Physicists [pdf]
https://mathcs.holycross.edu/~ahwang/print/calc.pdf
#HackerNews #Calculus #Mathematics #ComputerScience #Physics #PDF #HackerNews
Just eight days ago, I gave a popular science talk at @mpi_grav about colorful phenomena in the sky, and now – boom!
Just minutes ago, there were beautiful iridescent clouds (https://en.wikipedia.org/wiki/Cloud_iridescence) here, north of Hanover, Germany.
Here, light is diffracted by tiny droplets in the clouds, creating these typical mother-of-pearl colors.
#Light #Physics #Photography #NaturePhotography #Diffraction #AtmosphericOptics
Thin clouds in a pale blue sky. The edges of the clouds shimmer in mother-of-pearl colors.
Thin clouds in a pale blue sky. The edges of the clouds shimmer in mother-of-pearl colors.
Thin clouds in a pale blue sky. The edges of the clouds shimmer in mother-of-pearl colors.
Thin clouds in a pale blue sky. The edges of the clouds shimmer in mother-of-pearl colors.
The reason I went outside to take photos was because of this fascinating phenomenon.
This is a “dissipation trail”, or “distrail” for short, which is essentially the opposite of an airplane's contrail (condensation trail).
Here, the aircraft exhausts temporarily dissolve the clouds. However, new clouds can then form again along the distrail.
#Clouds #Physics #Photography #NaturePhotography #Meteorology #Distrail
View of a thin layer of clouds, with a streak where the clouds have disappeared. Thin new clouds are forming there.
View of a thin layer of clouds with a streak where the clouds have disappeared. On the top left this gap turns into a contrail.
View of a thin layer of clouds with a streak where the clouds have disappeared.
Just eight days ago, I gave a popular science talk at @mpi_grav about colorful phenomena in the sky, and now – boom!
Just minutes ago, there were beautiful iridescent clouds (https://en.wikipedia.org/wiki/Cloud_iridescence) here, north of Hanover, Germany.
Here, light is diffracted by tiny droplets in the clouds, creating these typical mother-of-pearl colors.
#Light #Physics #Photography #NaturePhotography #Diffraction #AtmosphericOptics
Thin clouds in a pale blue sky. The edges of the clouds shimmer in mother-of-pearl colors.
Thin clouds in a pale blue sky. The edges of the clouds shimmer in mother-of-pearl colors.
Thin clouds in a pale blue sky. The edges of the clouds shimmer in mother-of-pearl colors.
Thin clouds in a pale blue sky. The edges of the clouds shimmer in mother-of-pearl colors.
New Proofs Probe Soap-Film Singularities
https://www.quantamagazine.org/new-proofs-probe-soap-film-singularities-20251112/
#HackerNews #NewProofs #SoapFilm #Singularities #Mathematics #Physics
Debby ⁂📎🐧:disability_flag:
boosted
Physicists Take the Imaginary Numbers Out of Quantum Mechanics
#quantum #quantumphysics #physics #science #quantummechanics #astrophysics
Physicists Take the Imaginary Numbers Out of Quantum Mechanics
#quantum #quantumphysics #physics #science #quantummechanics #astrophysics
Ulrike Hahn
boosted
🧑🎓 PhD positions in “Gravity at the Extreme: from Theory to Observation” at the @mpi_grav in Potsdam 🇩🇪
ℹ️ https://www.aei.mpg.de/1334890/phd-positions-imprs-2026
📅 deadline for full consideration: 19 Dec 2025
We announce opening of several PhD positions at the International Max Planck Research School (IMPRS) “Gravity at the Extreme: from Theory to Observation”.
We are particularly interested in hiring creative, proactive and motivated candidates who flourish at working in a vibrant, interdisciplinary and synergistic group.
Successful candidates will join one of the scientific departments, either the “Astrophysical and Cosmological Relativity” or the “Computational Relativistic Astrophysics” department.
#FediHire #PhD #PhDPosition #IMPRS #MaxPlanckSociety #Physics #Science
Fabrizio Musacchio
boosted
Please share: Congratulations to Clara Wanjura for receiving the German Physical Society's Gustav Hertz Prize 2026 !
She is awarded the prize for her pioneering contributions to two modern topics: #neuromorphic systems, that promise to reduce the energy consumption of artificial intelligence #AI , and non-Hermitian #topology , which describes a set of sometimes counterintuitive wave phenomena.
Clara is research group leader at our @MPI_ScienceOfLight in #Erlangen .
@MPI_ScienceOfLight @maxplanckgesellschaft
press release of the #DPG :
https://www.dpg-physik.de/veroeffentlichungen/aktuell/2025/dpg-preise-2026
group homepage:
https://mpl.mpg.de/research-at-mpl/independent-research-groups/topology-and-neuromorphic-computing
Please share: Congratulations to Clara Wanjura for receiving the German Physical Society's Gustav Hertz Prize 2026 !
She is awarded the prize for her pioneering contributions to two modern topics: #neuromorphic systems, that promise to reduce the energy consumption of artificial intelligence #AI , and non-Hermitian #topology , which describes a set of sometimes counterintuitive wave phenomena.
Clara is research group leader at our @MPI_ScienceOfLight in #Erlangen .
@MPI_ScienceOfLight @maxplanckgesellschaft
press release of the #DPG :
https://www.dpg-physik.de/veroeffentlichungen/aktuell/2025/dpg-preise-2026
group homepage:
https://mpl.mpg.de/research-at-mpl/independent-research-groups/topology-and-neuromorphic-computing