POKÉMANIAC SIPH wants to fight! @Siphonay

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Khurram Wadee ✅<a href="https://mastodon.org.uk/tags/Euclid" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Euclid</a> <a href="https://mastodon.org.uk/tags/telescope" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#telescope</a> captures <a href="https://mastodon.org.uk/tags/EinsteinRing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#EinsteinRing</a> revealing <a href="https://mastodon.org.uk/tags/warping" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#warping</a> of <a href="https://mastodon.org.uk/tags/space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#space</a> | <a href="https://mastodon.org.uk/tags/EuropeanSpaceAgency" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#EuropeanSpaceAgency</a> | The Guardian<a href="https://www.theguardian.com/science/2025/feb/10/euclid-telescope-captures-einstein-ring-revealing-warping-of-space" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.theguardian.com/science/2025/feb/10/euclid-telescope-captures-einstein-ring-revealing-warping-of-space</a><a href="https://mastodon.org.uk/tags/Science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Science</a> <a href="https://mastodon.org.uk/tags/Astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Astronomy</a> <a href="https://mastodon.org.uk/tags/Relativity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Relativity</a> <a href="https://mastodon.org.uk/tags/GeneralRelativity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#GeneralRelativity</a> <a href="https://mastodon.org.uk/tags/ESA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ESA</a>

Niall in Raglan :laserkiwi:Those pesky Europeans don't respect privacy. Here's their photo of Einstein's ring.Rude.<a href="https://www.theguardian.com/science/2025/feb/10/euclid-telescope-captures-einstein-ring-revealing-warping-of-space" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.theguardian.com/science/2025/feb/10/euclid-telescope-captures-einstein-ring-revealing-warping-of-space</a><a href="https://mastodon.nz/tags/ESA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ESA</a> <a href="https://mastodon.nz/tags/Euclid" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Euclid</a> <a href="https://mastodon.nz/tags/Astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Astronomy</a> <a href="https://mastodon.nz/tags/Relativity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Relativity</a>

Mark McCaughreanWhen you look up at the night sky, the photons arriving from distant stars & galaxies have experienced no passage of time during their journey to your eye 💫From their perspective, they arrive at exactly the same moment that they left & they have travelled no distance ⏰📐You may now continue your sub-light speed day 🤷‍♂️(Yes, my train to Mannheim was late & I made it on to my connecting ICE to Frankfurt Airport thanks only to the conductor who kept his door open for me 🚅😰)<a href="https://mastodon.social/tags/Relativity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Relativity</a>

Bharath M. PalavalliOne of those rare times I'll post a link to Forbes: <a href="https://archive.is/QIiIk" rel="nofollow noopener noreferrer" target="_blank">https://archive.is/QIiIk</a>, do check out the article for a nice read on the analogy "Is Spacetime Really A Fabric?"<a href="https://mastodon.sdf.org/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#science</a> <a href="https://mastodon.sdf.org/tags/relativity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#relativity</a> <a href="https://mastodon.sdf.org/tags/gravity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#gravity</a>

Bug Hunter CatIt is a very dense black cat, so dense that it bends the space-time of the pillow. 🐈‍⬛ <a href="https://infosec.exchange/tags/catsofmastodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#catsofmastodon</a> <a href="https://infosec.exchange/tags/cats" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cats</a> <a href="https://infosec.exchange/tags/cat" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cat</a> <a href="https://infosec.exchange/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#physics</a> <a href="https://infosec.exchange/tags/relativity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#relativity</a> <a href="https://infosec.exchange/tags/blackcats" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#blackcats</a>

Zack Weinberg. <a href="https://mathstodon.xyz/@johncarlosbaez" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@johncarlosbaez</a> has been talking about black holes and this reminds me of a question that's been rattling around in my head for a while, off and on:What is the *smallest possible* modification to general relativity that would allow a (Schwarzschild) black hole to contain a macroscopic compact object (like a neutron star only more so, presumably), instead of the gravitational singularity at r=0 predicted by unmodified GR?It seems like this question _must_ have been explored, given that black hole singularities are a concrete, prominent place where we _know_ GR must break down, and "there's actually a macroscopic compact object in there, somehow" would resolve any number of other black-hole-related headaches (e.g. the "information paradox"), but I've never seen anyone even try to pursue this angle.<a href="https://hackers.town/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#physics</a> <a href="https://hackers.town/tags/relativity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#relativity</a> <a href="https://hackers.town/tags/blackholes" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#blackholes</a>

Project Gutenberg<a href="https://mastodon.social/tags/OTD" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OTD</a> in 1915.Albert Einstein presents the field equations of general relativity in the form of a tensor equation to the Prussian Academy of Sciences.<a href="https://en.wikipedia.org/wiki/Einstein_field_equations" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://en.wikipedia.org/wiki/Einstein_field_equations</a>General relativity at PG: <a href="https://www.gutenberg.org/ebooks/36114" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.gutenberg.org/ebooks/36114</a><a href="https://mastodon.social/tags/books" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#books</a> <a href="https://mastodon.social/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#physics</a> <a href="https://mastodon.social/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#science</a> <a href="https://mastodon.social/tags/relativity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#relativity</a>

Miro CollasCompletely New Relativistic Effect Just Found! Viscosity at Speed of Light - YouTube <a href="https://www.youtube.com/watch?v=VKmUNli0Kwg" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.youtube.com/watch?v=VKmUNli0Kwg</a><a href="https://masto.ai/tags/Physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Physics</a> <a href="https://masto.ai/tags/Relativity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Relativity</a>

Asheville CharlieHere's one of the <a href="https://mastodon.social/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#physics</a> things that makes my head hurt.. ____________ The more you travel in space, the less you travel in time. ------------------ (yes, really. ask <a href="https://mastodon.social/tags/einstein" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#einstein</a> )Of course that's when compared to somebody sitting still since your personal time always happens at one second per second. It's still pretty unintuitive and weird if ya ask me..<a href="https://mastodon.social/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#science</a> <a href="https://mastodon.social/tags/relativity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#relativity</a> <a href="https://mastodon.social/tags/ashevillecharlie_thoughts" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ashevillecharlie_thoughts</a>

Daniel PomarèdeAwesome 1979 cover of Nature featuring the giant Arecibo radiotelescope in Puerto Rico, with a busy operator in the control room in the foreground.Feature paper by Taylor, Fowler, and McCulloch on general relativistic effects in binary pulsar PSR1913+16 <a href="https://nature.com/articles/27743" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://nature.com/articles/27743</a><a href="https://mastodon.social/tags/Arecibo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Arecibo</a> <a href="https://mastodon.social/tags/radiotelescope" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#radiotelescope</a> <a href="https://mastodon.social/tags/observatory" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#observatory</a> <a href="https://mastodon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astronomy</a> <a href="https://mastodon.social/tags/astrophysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astrophysics</a> <a href="https://mastodon.social/tags/astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astrodon</a> <a href="https://mastodon.social/tags/binary" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#binary</a> <a href="https://mastodon.social/tags/pulsar" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pulsar</a> <a href="https://mastodon.social/tags/binarypulsar" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#binarypulsar</a> <a href="https://mastodon.social/tags/pulsars" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pulsars</a> <a href="https://mastodon.social/tags/nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#nature</a> <a href="https://mastodon.social/tags/cover" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cover</a> <a href="https://mastodon.social/tags/naturecover" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#naturecover</a> <a href="https://mastodon.social/tags/covers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#covers</a> <a href="https://mastodon.social/tags/naturecovers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#naturecovers</a> <a href="https://mastodon.social/tags/relativity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#relativity</a> <a href="https://mastodon.social/tags/generalrelativity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#generalrelativity</a> <a href="https://mastodon.social/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#physics</a> <a href="https://mastodon.social/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#science</a> <a href="https://mastodon.social/tags/STEM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#STEM</a>

Daniel PomarèdeA timely Nature cover, on the occasion of Albert Einstein 145ᵗʰ birthday.The issue features a fascinating Review Article by Carla and Franz Kahn: «Letters from Einstein to de Sitter on the nature of the Universe»<a href="https://www.nature.com/articles/257451a0" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.nature.com/articles/257451a0</a><a href="https://mastodon.social/tags/universe" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#universe</a> <a href="https://mastodon.social/tags/Einstein" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Einstein</a> <a href="https://mastodon.social/tags/deSitter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#deSitter</a> <a href="https://mastodon.social/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#physics</a> <a href="https://mastodon.social/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#science</a> <a href="https://mastodon.social/tags/nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#nature</a> <a href="https://mastodon.social/tags/cover" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cover</a> <a href="https://mastodon.social/tags/naturecover" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#naturecover</a> <a href="https://mastodon.social/tags/cosmology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cosmology</a> <a href="https://mastodon.social/tags/history" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#history</a> <a href="https://mastodon.social/tags/philosophy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#philosophy</a> <a href="https://mastodon.social/tags/letters" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#letters</a> <a href="https://mastodon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astronomy</a> <a href="https://mastodon.social/tags/astrophysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astrophysics</a> <a href="https://mastodon.social/tags/relativity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#relativity</a> <a href="https://mastodon.social/tags/generalrelativity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#generalrelativity</a> <a href="https://mastodon.social/tags/astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astrodon</a>

Mikko TuomiThe interior of black holes remains a conundrum.In 1916, Karl <a href="https://scicomm.xyz/tags/Schwarzschild" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Schwarzschild</a> outlined a solution to Albert <a href="https://scicomm.xyz/tags/Einstein" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Einstein</a>'s general <a href="https://scicomm.xyz/tags/relativity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#relativity</a>, in which the center of a black hole consists of a so-called <a href="https://scicomm.xyz/tags/singularity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#singularity</a>, a point at which space and time no longer exist.Here, all physical laws, including general theory of relativity, no longer apply and even principle of <a href="https://scicomm.xyz/tags/causality" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#causality</a> is suspended.But theory allows for even more exotic solutions, such as <a href="https://scicomm.xyz/tags/gravastars" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#gravastars</a>.<a href="https://phys.org/news/2024-02-star-matryoshka-doll-theory-gravastars.html" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://phys.org/news/2024-02-star-matryoshka-doll-theory-gravastars.html</a>

Daniel PomarèdeEarly South Pole Telescope data has found that Einstein was right… again✍️ by Jacinta Bowler for Cosmos Magazine <a href="https://cosmosmagazine.com/space/south-pole-telescope-general-relativity/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://cosmosmagazine.com/space/south-pole-telescope-general-relativity/</a> <a href="https://mastodon.social/tags/SPTelescope" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SPTelescope</a> <a href="https://mastodon.social/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#physics</a> <a href="https://mastodon.social/tags/Einstein" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Einstein</a> <a href="https://mastodon.social/tags/AmundsenScott" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AmundsenScott</a> <a href="https://mastodon.social/tags/SouthPole" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SouthPole</a> <a href="https://mastodon.social/tags/Station" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Station</a> <a href="https://mastodon.social/tags/Antarctica" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Antarctica</a> <a href="https://mastodon.social/tags/telescope" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#telescope</a> <a href="https://mastodon.social/tags/Measurement" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Measurement</a> <a href="https://mastodon.social/tags/gravitationallensing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#gravitationallensing</a> <a href="https://mastodon.social/tags/lensing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#lensing</a> <a href="https://mastodon.social/tags/CMB" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CMB</a> <a href="https://mastodon.social/tags/map" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#map</a> <a href="https://mastodon.social/tags/temperature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#temperature</a> <a href="https://mastodon.social/tags/polarization" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#polarization</a> <a href="https://mastodon.social/tags/relativity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#relativity</a> <a href="https://mastodon.social/tags/generalrelativity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#generalrelativity</a> <a href="https://mastodon.social/tags/universe" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#universe</a> <a href="https://mastodon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astronomy</a> <a href="https://mastodon.social/tags/astrophysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astrophysics</a> <a href="https://mastodon.social/tags/astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astrodon</a> <a href="https://mastodon.social/tags/space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#space</a> <a href="https://mastodon.social/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#science</a> <a href="https://mastodon.social/tags/research" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#research</a> <a href="https://mastodon.social/tags/STEM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#STEM</a> <a href="https://mastodon.social/tags/CosmosMagazine" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CosmosMagazine</a> <a href="https://mastodon.social/tags/cosmos" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cosmos</a> <a href="https://mastodon.social/tags/magazine" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#magazine</a> <a href="https://mastodon.social/tags/cosmicmicrowavebackground" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cosmicmicrowavebackground</a>

Mikko TuomiA rift runs deep through the heart of <a href="https://scicomm.xyz/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#physics</a>.The general <a href="https://scicomm.xyz/tags/theory" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#theory</a> of <a href="https://scicomm.xyz/tags/relativity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#relativity</a>, which describes <a href="https://scicomm.xyz/tags/gravity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#gravity</a>, clashes with <a href="https://scicomm.xyz/tags/quantum" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#quantum</a> physics.In an effort to seal that physics fissure, many physicists have spent their careers working to build a theory of quantum gravity.But one physicist is championing a radically different path.Jonathan Oppenheim thinks that gravity might be fundamentally classical, meaning it isn’t quantum at all.<a href="https://www.sciencenews.org/article/gravity-quantum-mechanics-physics-theory" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.sciencenews.org/article/gravity-quantum-mechanics-physics-theory</a>

Mikko TuomiGeneral <a href="https://scicomm.xyz/tags/relativity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#relativity</a> has been wildly successful at describing how <a href="https://scicomm.xyz/tags/gravity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#gravity</a> works and how it shapes the large-scale structure of the <a href="https://scicomm.xyz/tags/universe" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#universe</a>. <a href="https://scicomm.xyz/tags/Space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Space</a>-time tells <a href="https://scicomm.xyz/tags/matter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#matter</a> how to move; matter tells space-<a href="https://scicomm.xyz/tags/time" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#time</a> how to curve.Yet the <a href="https://scicomm.xyz/tags/mathematics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mathematics</a> of general relativity is also profoundly counterintuitive.What does a space look like if it is almost a <a href="https://scicomm.xyz/tags/vacuum" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#vacuum</a>, having just a tiny amount of mass.Is it necessarily almost flat?<a href="https://scicomm.xyz/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#physics</a> <a href="https://scicomm.xyz/tags/cosmology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cosmology</a> <a href="https://www.quantamagazine.org/a-century-later-new-math-smooths-out-general-relativity-20231130/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.quantamagazine.org/a-century-later-new-math-smooths-out-general-relativity-20231130/</a>

artisanroxSome hashtags I like:<a href="https://mstdn.social/tags/art" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#art</a> <a href="https://mstdn.social/tags/Rembrandt" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Rembrandt</a> <a href="https://mstdn.social/tags/Escher" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Escher</a> <a href="https://mstdn.social/tags/digitalart" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#digitalart</a> <a href="https://mstdn.social/tags/music" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#music</a> <a href="https://mstdn.social/tags/jazz" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#jazz</a> <a href="https://mstdn.social/tags/classical" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#classical</a> <a href="https://mstdn.social/tags/powermetal" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#powermetal</a> <a href="https://mstdn.social/tags/musictheory" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#musictheory</a> <a href="https://mstdn.social/tags/WorldMusic" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#WorldMusic</a> <a href="https://mstdn.social/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#science</a> <a href="https://mstdn.social/tags/JWST" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#JWST</a> <a href="https://mstdn.social/tags/space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#space</a> <a href="https://mstdn.social/tags/relativity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#relativity</a> <a href="https://mstdn.social/tags/blackholes" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#blackholes</a> <a href="https://mstdn.social/tags/COVID" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#COVID</a> <a href="https://mstdn.social/tags/VaccinesSaveLives" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#VaccinesSaveLives</a> <a href="https://mstdn.social/tags/Judaism" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Judaism</a> (disclaimer: I am NOT Jewish) <a href="https://mstdn.social/tags/Torah" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Torah</a> <a href="https://mstdn.social/tags/Kabbalah" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Kabbalah</a> <a href="https://mstdn.social/tags/politics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#politics</a> <a href="https://mstdn.social/tags/DemocraticSocialist" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#DemocraticSocialist</a> <a href="https://mstdn.social/tags/TrumpSucks" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#TrumpSucks</a> <a href="https://mstdn.social/tags/ElectDemocrats" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ElectDemocrats</a> <a href="https://mstdn.social/tags/RacialJustice" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RacialJustice</a> <a href="https://mstdn.social/tags/LGBTQIA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#LGBTQIA</a> <a href="https://mstdn.social/tags/aromantic" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#aromantic</a> <a href="https://mstdn.social/tags/asexual" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#asexual</a> <a href="https://mstdn.social/tags/aplatonic" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#aplatonic</a> <a href="https://mstdn.social/tags/transrights" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#transrights</a> Will add more as I remember them!!!

Kyle Memoir 🍉So, I’m reading some light physics again (Brian Cox & Jeff Forshaw on the origin of Einstein’s E = mc^2), and once again have bumped into the ubiquitous statement in such books that time, unlike space, has an arrow and appears to be unidirectional (which strikes me as little more than a restating of the principle of causality).I’m interested in any physicist’s perspective on the following thought I have whenever I read this proposition…<a href="https://mastodon.online/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#physics</a> <a href="https://mastodon.online/tags/space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#space</a> <a href="https://mastodon.online/tags/time" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#time</a> <a href="https://mastodon.online/tags/relativity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#relativity</a> <a href="https://mastodon.online/tags/spacetime" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#spacetime</a>

Khurram Wadee ✅I often like to do thought experiments while <a href="https://mastodon.org.uk/tags/cycling" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cycling</a> and sometimes I can’t think all the way through to the end of the answer. Here’s a recent one for <a href="https://mastodon.org.uk/tags/physicists" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#physicists</a> who specialize in <a href="https://mastodon.org.uk/tags/relativity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#relativity</a>. A <a href="https://mastodon.org.uk/tags/bike" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#bike</a>'s <a href="https://mastodon.org.uk/tags/wheel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#wheel</a> rotates such that the bit in contact with the <a href="https://mastodon.org.uk/tags/road" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#road</a> is instantaneously at rest with respect to the <a href="https://mastodon.org.uk/tags/ground" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ground</a> (no skidding), at least in <a href="https://mastodon.org.uk/tags/NewtonianMechanics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#NewtonianMechanics</a>. On the other hand, the bit diametrically opposite to it is moving at precisely twice the speed of the <a href="https://mastodon.org.uk/tags/bicycle" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#bicycle</a>...<a href="https://mastodon.org.uk/tags/Bikiking" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Bikiking</a> <a href="https://mastodon.org.uk/tags/Physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Physics</a>

Prometheus Warp X :mastodon:🔥THE REAL WARP REACTOR🔥 <a href="https://mastodon.social/tags/Physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Physics</a> <a href="https://mastodon.social/tags/Engineering" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Engineering</a> <a href="https://mastodon.social/tags/Space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Space</a> 👽 WARP REACTOR INVENTOR <a href="https://www.altpropulsion.com/people/michael-g-anderson/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.altpropulsion.com/people/michael-g-anderson/</a> 🛸 JOURNAL ARTICLE <a href="https://doi.org/10.48550/arXiv.2306.06133" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://doi.org/10.48550/arXiv.2306.06133</a> 👾 VIDEO PRESENTATION <a href="https://www.youtube.com/live/95i9m5B2NFY?feature=share" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.youtube.com/live/95i9m5B2NFY?feature=share</a> 🛰️ PDF-VERSION OF TALK <a href="https://drive.google.com/drive/folders/1Zv_VRMHxAjJXBybhjFOU-qwneBA6rvUI" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://drive.google.com/drive/folders/1Zv_VRMHxAjJXBybhjFOU-qwneBA6rvUI</a> 🚀 YOUTUBE CHANNEL <a href="https://www.youtube.com/@PrometheusUnchained" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.youtube.com/@PrometheusUnchained</a> <a href="https://mastodon.social/tags/WarpReactor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#WarpReactor</a> <a href="https://mastodon.social/tags/WarpCore" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#WarpCore</a> <a href="https://mastodon.social/tags/FusionEnergy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#FusionEnergy</a> <a href="https://mastodon.social/tags/WarpDrive" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#WarpDrive</a> <a href="https://mastodon.social/tags/Wormhole" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Wormhole</a> <a href="https://mastodon.social/tags/PulsedPower" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PulsedPower</a> <a href="https://mastodon.social/tags/QuantumGravity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#QuantumGravity</a> <a href="https://mastodon.social/tags/Relativity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Relativity</a> <a href="https://mastodon.social/tags/Accelerator" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Accelerator</a> <a href="https://mastodon.social/tags/SpaceTime" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SpaceTime</a> <a href="https://mastodon.social/tags/Gravity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Gravity</a> <a href="https://mastodon.social/tags/PlasmaPhysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PlasmaPhysics</a> <a href="https://mastodon.social/tags/UFO" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#UFO</a> <a href="https://mastodon.social/tags/StarTrek" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#StarTrek</a> <a href="https://mastodon.social/tags/StarWars" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#StarWars</a> <a href="https://mastodon.social/tags/Astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Astronomy</a> <a href="https://mastodon.social/tags/Truth" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Truth</a> <a href="https://mastodon.social/@PrometheusWarpX/110684461184732451" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://mastodon.social/@PrometheusWarpX/110684461184732451</a>

Thomas ConnorMy biggest weakness as an astrophysicist is knowing whether to put a "t" in the name every time I need to write Loren{,t}z <a href="https://astrodon.social/tags/Astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Astrodon</a> <a href="https://astrodon.social/tags/Relativity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Relativity</a> <a href="https://astrodon.social/tags/Physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Physics</a>

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