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#spacetime — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #spacetime, aggregated by home.social.

  1. Wormholes: The Cosmic Portals That Defy Spacetime

    In the vast, uncharted expanse of the universe, few cosmic concepts capture the human imagination quite like wormholes—hypothetical,…
    #NewsBeep #News #Physics #cosmic #defy #Portals #Science #Spacetime #that #the #UK #UnitedKingdom #wormholes
    newsbeep.com/uk/580519/

  2. 2/n...outlined how mass and energy are coupled in gravitation and the relationships between those in terms of curvature of space-time.
    Classically relativistic effects are "sticky" and impose limits on just how much stuff you can blast into space atop piles of high explosives before you run into problems. It's not just an #Engineering issue. The weight of the fuel required becomes a fundamental constraint.
    The coupling between #Mass and #Energy that gives us #SpaceTime imposes some fundamental-

  3. 2/n...outlined how mass and energy are coupled in gravitation, and the relationships between those in terms of curvature of space-time.
    Classically relativistic effects are "sticky" and impose limits on just how much stuff you can blast into space atop piles of high explosives before you run into problems. It's not just an #Engineering problem. The weight of the fuel required becomes a fundamental issue.
    The coupling between #Mass and #Energy that gives us #SpaceTime imposes some fundamental-

  4. 2/n...outlined how mass and energy are coupled in gravitation, and the relationships between those in terms of curvature of space-time.
    Classically relativistic effects are "sticky" and impose limits on just how much stuff you can blast into space atop piles of high explosives before you run into problems. It's not just an #Engineering problem. The weight of the fuel required becomes a fundamental issue.
    The coupling between #Mass and #Energy that gives us #SpaceTime imposes some fundamental-

  5. 2/n...outlined how mass and energy are coupled in gravitation and the relationships between those in terms of curvature of space-time.
    Classically relativistic effects are "sticky" and impose limits on just how much stuff you can blast into space atop piles of high explosives before you run into problems. It's not just an #Engineering issue. The weight of the fuel required becomes a fundamental constraint.
    The coupling between #Mass and #Energy that gives us #SpaceTime imposes some fundamental-

  6. 2/n...outlined how mass and energy are coupled in gravitation and the relationships between those in terms of curvature of space-time.
    Classically relativistic effects are "sticky" and impose limits on just how much stuff you can blast into space atop piles of high explosives before you run into problems. It's not just an #Engineering issue. The weight of the fuel required becomes a fundamental constraint.
    The coupling between #Mass and #Energy that gives us #SpaceTime imposes some fundamental-

  7. 🐘 When Algebra Took the Floor — and Geometry Was Asked to Sit Quietly

    Why an imbalance in mathematical language may have slowed progress.

    We may not have lacked mathematics in fundamental physics — we may have over-privileged algebra at the expense of geometry.

    Algebra is superb at conservation and symmetry.

    Geometry tells us what is possible.

    When geometry was demoted to “intuition,” we: • over-valued static solutions
    • flattened scale dependence
    • fragmented processes that were actually unified

    Tunnelling, horizons, negative energy, spacetime shortcuts — same process, different geometric cost.

    This isn’t anti-maths.

    It’s a course correction.

    #Physics #GeometryFirst #Foundations #QuantumGravity #Spacetime

  8.  
    A #Question for #Krononauts

    A #shoebox is floating in #SpaceTime. We can #identify its 2 sides as X, its ends as Y, and top & bottom as Z. Now, rotating the box, the Xs might become Zs, or some other 2- or 3-way inversion.

    4-D might have X, Y, Z & T (for Time). Could these 4 #axes or #dimensions also be "rotated"? Could someone live in "#spatial" dimensions of X, Y & T, with Z being their Time? If so, could our X-dimension be someone else's Time #dimension?

    #Time #Timelessness #TimeTravel

  9. ❛❛ something big – often called #PlanetX – might actually be out there. And a new study by a team from #Princeton University has substantially raised the likelihood that it really exists.

    The evidence comes from an apparently non-random distribution in the orientation of the #orbits of smaller outer #SolarSystem bodies known as trans-Neptunian objects or #KuiperBelt objects (KBOs). ❜❜

    🔗 CosmosMagazine.com/space/astro 2024 Dec 06
    🔗 Wikipedia.org/wiki/Planets_bey#Planets #Neptune

    #Astronomy #SpaceTime

  10.  
    #TimeTravel (#retrograde) is transporting anything into the #past: a #person, a #quantum #signal, a #thought.

    Resulting from some combination of:
    #QuantumEntanglement
    #Wormholes
    #DarkEnergy & #DarkMatter
    #ManyWorlds & #Multiverse
    #Tachyons & faster-than-light (superluminal) #particles
    #Consciousness may involve quantum processes in the #brain
    • Rotating cylinders or gyroscopes (after #HGWells)
    • Higher #dimensional #geometries, folding or looping #SpaceTime
    • & c …

    #Kronodon

  11. 2024-08-21 - Illustration - Doucheur

    Attention, mettre une couverture très douce chargée sur le chat peut provoquer d'étranges distorsions temporelles et spatiales.
    Un peu tôt pour se réchauffer mais je sens que l'hiver va arriver très vite !

    ~3h15, marqueurs alcool, A7

    Personnage - Carbonacat

    #traditionalart #illustration #alcoholmarkers #owncharacter #lilaverse #cat #blanket #bluefur #pink #distortion #spacetime #magick

  12. #Cosmology #SpaceTime #BigBang #Curvature

    Talking with my children about the time before the Big Bang. The best analogy we could come up with: Space-time is like the earth's surface, moving from the past to the future is like moving from north to south.
    Asking "what was before the Big Bang?" is like asking "what's north of the north pole?".

    Put differently: It all started with the Big Bang. Then things went south.

  13. @JProl

    It's not hard to snicker about amateurs. I've given you a boost for having been so keen to point out Will Shanklin's <em>"apparent gain"</em> instead of <a href="whitehouse.gov/wp-content/uplo">Arati Prabhakar's <em>"apparent loss"</em> ... and for keeping the attention, too.

    Coming up with some (presumably) correct + still reasonably short description seems more challenging (to me). My best attempt so far:

    <blockquote>
    <b>If</b> two astronauts had met "somewhere in (cislunar) space", and subsequently separated from each other,

    - with one astronaut venturing on to land on the lunar surface, and

    - the other astronaut returning to the Earth's surface,

    such that (as may happen in selected trials)

    - it takes both astronauts exactly equally long, resp., from separating until reaching (halting on) the Moon, or on Earth,

    after some (not further specified) while, either astronaut perhaps being prompted by suitable prearranged signals,

    - both again take off from Earth, and from the Moon, resp., and they meet again "somewhere in (cislunar) space", where again (trials must be selected such that)

    - the duration of one astronaut from her take-off until the re-union meeting

    - happens to be exactly equal to the duration of the other astronaut from his take-off until being together again

    <b>then/therefore</b>

    the astronaut who had stayed on the lunar surface had remained there
    (pretty much) <b>exactly</b>
    \[\left(1 + \frac{58.7 * 10^{-6}}{86400}\right) \approx (1 + 6.8 * 10^{-10})\]
    <b>times as long as</b>
    the astronaut who had stayed on the the surface of the Earth had remained there.

    </blockquote>

    So: Good luck, #NASA ! ...

    #LTC #LunarTime #Duration #Rate #Clock #Relativity #Spacetime

  14. 🔥#WarpX_Afield
    👽doi.org/10.48550/arXiv.2306.06133
    🛸Azimuthal acceleration beyond #Unruh threshold of multilayer multipass #RHED plasma & charged particle rings generate #Afield #SpaceTime #WarpBubbles.

    #WarpDrive #Wormhole #TimeTravel #UAPWarpX #ufoX #uapX #Physics #Engineering

  15. 🔥#TheRealWarpReactor
    👽doi.org/10.48550/arXiv.2306.06133
    🛸Azimuthal acceleration beyond #Unruh threshold of multilayer multipass #RHED plasma & charged particle rings generate #SpaceTime #WarpBubbles.
    #WarpDrive #UAPWarpX #ufoX #uapX #Physics #Engineering