#relativity
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ѦਹѤʞ @spacemagick@mastodon.social@fesshole
No you don't. All motion is relative.
#relativity :-)
@KilleansRow@mastodon.onlineThe End is Near for___________ (fill in with today’s panic button).
#Physics
#Democracy
#Asparagus
…about the physics. What’s left are hard problems. We’ve picked off all the low hanging fruit. The #StandardModel still wins #Survivor in terms of fitting (most) observations, experimental or otherwise. #Protons have not suddenly started decaying. #QuantumMechanics still helps us find ways to beat alleged limits on circuit building in spite of #Relativity getting the kids on the weekend
Unifying general relativity and the electromagnetic force? (I presume this also includes the weak nuclear force at sufficiently high energies, but this summary doesn't say)
https://phys.org/news/2025-04-einstein-field-theory.html
I'm pretty much at the limit of my understanding of field theories and such just in this summary article, I don't think I'll even try their full journal article.
@cenobyte - Does Professor Skye or her research assistant have any comment on the matter?
#relativity #GeneralRelativity #electromagnetic #force #field #TOE #GUT
During the latter part of the 20th century, string…
Phys.orgJanuary 1928: The Dirac equation unifies quantum mechanics and special relativity
A seminal paper by Paul Dirac, who relied on mathematical intuition, laid the foundation for quantum electrodynamics.
By Nyla Husain (from the archives)
https://www.aps.org/apsnews/2024/11/mathematical-intuition-dirac-quantum-mechanics
@KilleansRow@mastodon.online@ThreeSigma if that were true we’d not have had #QuantumMechanics or #Relativity when we did. The history of Physics is replete with those stories. So if it was all wrong and abandoned until the experiments could be done ( in many cases decades later) everyone would have gone home already ? Science has *never* worked that way. So motive remains a question. The hard questions grab at the brightest, most stubborn people, perpetually, ultimately for the better
[2504.01830] Is Lorentz invariance violation found?
https://arxiv.org/abs/2504.01830
> ...Very recently, the Carpet collaboration has completed the full data analysis, reporting further support for their previously detected photon now at ${\cal E} = 300^{+ 43}_{- 38} \, {\rm TeV}$, which manifestly clashes with conventional physics
...
> If confirmed by future observations our finding would represent the first positive result in quantum gravity phenomenology.
Poster Prize at the LIGO Virgo KAGRA Collaboration Meeting
Congratulations to our colleague Lorenzo Pompili! Lorenzo is a PhD student in the “Astrophysical and Cosmological Relativity” department at @mpi_grav in Potsdam. Last week he won the prize for the best poster in the “Theory” category at the March 2025 meeting of the @LIGO Virgo KAGRA collaboration in Melbourne, Australia.
His poster presented new tests of Einstein's general theory of relativity using gravitational waves from the final stage of a binary black hole merger. During this “ringdown”, the black hole settles into its final post-merger configuration and emits gravitational waves at specific frequencies.
If Einstein's theory is correct, these frequencies depend only on the black hole's mass and spin. By measuring the frequencies, it is possible to test for deviations from Einstein's theory.
#PhDLife #PhD #PosterPrize #science #physics #relativity #GravitationalWaves
It is a very dense black cat, so dense that it bends the space-time of the pillow. 
#catsofmastodon #cats #cat #physics #relativity #quantum #blackcats
https://phys.org/news/2025-03-physicist-revisits-limits-life-schrdinger.html
"This work connects the dots among the great pillars of twentieth century #physics #thermodynamics, #relativity, and #quantummechanics—for a major paradigm shift…implications of quantum information processing in wetware at ambient temperatures," said Kurian.
"Physicists and cosmologists should wrestle with these findings, especially as they consider the origins of life on Earth and elsewhere in the habitable universe, evolving in concert with the electromagnetic field."
More than 80 years ago, Erwin Schrödinger, a theoretical…
phys.orgWhy is C the symbol for the speed of light?
https://math.ucr.edu/home/baez/physics/Relativity/SpeedOfLight/c.html
#HackerNews #C #speedoflight #physics #relativity #science #education
Back in 1915, Einstein put forth his most ambitious idea: the general theory of relativity, combining #gravity with #relativity to create an entirely new conception of our #Universe.
In most conventional circumstances, the predictions of Einstein’s theory are indistinguishable from that of its predecessor: Newton’s law of universal gravitation.
Is it possible, then, to somehow reduce Einstein’s equations down to Newton’s equations?
#physics
https://bigthink.com/starts-with-a-bang/turn-einsteins-equations-newtons-law/
Postdoctoral positions in Computational Relativistic Astrophysics at our Potsdam institute
The “Computational Relativistic Astrophysics” department at the @mpi_grav in Potsdam led by Masaru Shibata announces the opening of postdoc appointments (2 years).
The department is currently composed of two group leaders, one senior scientist, and several postdoc researchers and students.
It focuses on several research topics in relativistic computational astrophysics including neutron star merger, collapsar, stellar core collapse and explosion, formation of supermassive black holes, and multi-messenger astronomy.
apply by 25 March 2025
https://www.aei.mpg.de/1227727/car-postdoc-2025
#Postdoc #PostdocPosition #Potsdam #Astrophysics #MaxPlanckSociety #Relativity #Physics #NeutronStars #BlackHoles
Ping-coincidence lattice "with a twist":
a "Null-Strut Wheel".
"Can this set of causal relations (with 8-fold rotational spatial symmetry) be found in a spacetime region of Schwarzschild geometry ?"
(PSE/q/845793)
(Enjoy it while it out-lasts the drive-by-assaulting ...)
#PingCoincidenceLattice #NullStrutWheel #Spacetime #Relativity
#einstein #alberteinstein #physics #space #darkmatter #darkenergy #astronomy #galaxies #stars #spacetime #discovery #technology #science #nasa #esa #gravity #relativity #theoryofrelativity #universe #cosmos #expansion #bigbang
The article doesn’t say too much, but is it surprising to find the universe may be more complicated than we currently think it is?
Dark Energy experiment challenges Einstein's theory of Universe https://www.bbc.com/news/articles/c4geldjjge0o
New research could force a fundamental rethink of the…
www.bbc.com#OnThisDay On March 20, 1916, Albert #Einstein submitted to the German scientific journal Annalen der Physik the final version of an article on "General Theory of #Relativity."
Today is International Day of #Happiness and World #SparrowDay.
physics, relativity
Ivette Fuentes, PhD is working on figuring out the relativity inside of fancy atomic clocks that work using entanglement. She says that they are getting precise enough now that it's noticeable, and that we might finally have a decent experiment to start looking at how quantum objects get affected by general relativity.
https://pca.st/vlfiv2xy
https://www.youtube.com/watch?v=cUj2TcZSlZc
#physics #relativity #quantumMechanics
Postdoctoral positions in Computational Relativistic Astrophysics at our Potsdam institute
The “Computational Relativistic Astrophysics” department at the @mpi_grav in Potsdam led by Masaru Shibata announces the opening of postdoc appointments (2 years).
The department is currently composed of two group leaders, one senior scientist, and several postdoc researchers and students.
It focuses on several research topics in relativistic computational astrophysics including neutron star merger, collapsar, stellar core collapse and explosion, formation of supermassive black holes, and multi-messenger astronomy.
apply by 25 March 2025
https://www.aei.mpg.de/1227727/car-postdoc-2025
#Postdoc #PostdocPosition #Potsdam #Astrophysics #MaxPlanckSociety #Relativity #Physics #NeutronStars #BlackHoles
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@syferdet@toad.socialBRAXTON: The only way for me, for us, to recover is to obliterate Voyager from the timeline. That way, none of the events that caused this illness will have occurred.
JANEWAY: What events?
BRAXTON: Thirty years of exile on twentieth century Earth. The temporal inversion in the Takara sector. The #Vikings winning the Super Bowl.
/ @syferdet@toad.socialWon't the crew of Voyager be surprised when they find the 29th century birth control pill dispenser hidden in a conduit?
