#space-time — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #space-time, aggregated by home.social.
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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- -
The Biggest Ideas in the Universe: Space, Time, and Motion "The most trusted explainer of the most mind-boggling concepts pulls back the veil of mystery " Sale: $19 to $2.99 by Sean M. Carroll Rating: 4.5/5 (1,271 Reviews) #Physics #Cosmology #Relativity #SpaceTime #Science #Books #STEM #BookSky
The Biggest Ideas in the Unive... -
Very interesting and insightful. 👍
Why the Speed of Light Is NOT a Speed - Leonard Susskind
https://www.youtube.com/watch?v=QqcLRZdVBIg (~21 min.)#Physics #SpeedOfLight #Einstein #Relativity #Spacetime #Science #QuantumPhysics #Universe #Mind #Reality
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Fire up the good bong, it's time for your "everything is zen" moment.
https://www.youtube.com/watch?v=p4iXB1hp2zI
#science #physics #astrophysics #astronomy #space #time #spacetime
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🤯 When your #physics theory sounds like a #sci-fi screenplay and even the string theorists roll their eyes. Who knew #fractals could bend space-time and our patience simultaneously? 🌀✨
https://www.quantamagazine.org/where-some-see-strings-she-sees-a-space-time-made-of-fractals-20260311/ #spacetime #stringtheory #mindblown #HackerNews #ngated -
Ever wondered what four dimensions really mean? Discover why knots can’t exist in 4D space — and how mathematicians use cubes and clever analogies to understand higher dimensions. https://english.mathrubhumi.com/technology/science/why-cant-you-tie-knots-in-four-dimensions-a-mathematician-explains-o59ljlhj?utm_source=dlvr.it&utm_medium=mastodon #Mathematics #FourDimensions #SpaceTime #KnotTheory #ScienceExplained
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Illustration by Charles Hinton, from The Fourth Dimension (1904).
Source: University of Toronto Libraries / Internet Archive
https://pdimagearchive.org/images/98c47b7a-4c26-4b4b-9fe2-a04d8d9aa24c
#mathematics #spacetime #cubes #physics #geometry #tesseracts #art #publicdomain
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🐘 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 unifiedTunnelling, 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
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When #Heathrow airport's 3rd runway construction began, #spacetime got weird — concrete started to float!
Baffling – until they realised the mystical river wardings protecting the airport on three sides had been breached! Worse than the last time too – which had resulted in having to lift the Picadilly line over the River Crane!
#TellingStories #Photography #London #psychogeography #HeathrowAirport
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Fragments of Energy – More Mind Bending Concepts!
Researchers at North Carolina State University have put forward the notion that fragments of energy, not waves and/or particles, could be the fundamental building blocks of the universe.
Here is the concept: energy is always flowing through regions of space and time. Think of energy as made up of lines that fill up a region of space and time, flowing into and out of that region, never beginning, never ending and never crossing one another.
To test the theory the researchers demonstrated that their new theory accurately solved the problems of showing that the curvature of spacetime is caused by the mass of the sun, and that the bending of light occurs as it passes across warped space and time near to the sun. Net-net, this new construct gives researchers and theorists a new way of thinking about the universe. https://www.popularmechanics.com/space/deep-space/a69757765/new-universe-theory-fragments-energy-space-and-time/
#Physics #Cosmology #Spacetime #QuantumMechanics #Energy #Universe #FragmentsofEnergy
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Dah lama gak nyisain waktu buat nonton beginian
https://youtu.be/J01N1z96elk?si=ErRP5Whl1BJU_iHE
#cosmic #science #space #spacetime #neildegrassetyson #briancox
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Now it's time for some mind-bending refection! Is time really linear, or does it have other manifestion(s)?
Our understanding of time and its place in physics has often raised new questions rather than providing definitive answers - aka Einstein’s theory of relativity, suggests time and space fuse into a four-dimensional fabric with all all events: past, present, and future coexisting.
New retrocausal interpretations of quantum mechanics, suggest the future might play as big a role as the past in shaping events. Instead of time flowing in one-way chain of causes, the universe is a kind of self-consistent story that must make sense from both ends at once - aka the traditional “past causes future” model is no longer the complete story.
Many physicists are now thinking that linear time, as we experience it, may be a secondary story layered on top of a timeless foundation. Whoa!
https://discoverwildscience.com/new-theories-suggest-time-might-not-be-linear-how-this-changes-everything-1-379851/ #Physics #Time #Cosmology #Spacetime #TimeTheory #Quantum #QuantumMechanics #Einstein #retrocausal
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🔭 Marvin Watches a Cube Break Common Sense
If a cube flew past at nearly the speed of light, it wouldn’t look squashed.
It would look… rotated.Marvin pauses mid-sip of tea.
“That,” he notes, “is not what intuition promised.”Terrell & Penrose showed (1959) that relativistic motion produces an optical twist, not a squash. Light from different parts of an object reaches the observer at different times, and the brain stitches time into shape.
A new lab experiment made this visible by slowing light with ultrafast lasers. Cubes and spheres appear rotated — exactly as predicted.
Marvin understands the problem immediately;
“You never see the thing,” he says. “You see the story light tells you.”Nothing changes physically.
The boundary does.
🧠 In relativity, seeing is a space-time calculation.
#Relativity #Physics #ObserverEffect #SpaceTime
#HybridMind42 #BoundaryPhysics #ScienceExplained -
#KnowledgeByte: A #Wormhole is a hypothetical structure that connects two different points in #Spacetime, potentially allowing for faster-than-light travel or even time travel.
It's a concept derived from Einstein's theory of general relativity.
https://knowledgezone.co.in/posts/What-is-a-Wormhole-5a7552094cbd6108840b6a04
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I have boosted to see if anyone else has a source for this
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philosophically speaking, the coolest thing about relativity is that it explicitly states that time & space have to be jointly defined. space has no meaning without time, and time has no meaning without space.
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Mars saatleri Dünya'dan %2-4 hızlı çalışıyor! Uzmanlar, farklı gezegenlerde standart zaman dilimlerinin gerekliliğini vurguluyor. Uzay seyahatleri için bu yeni çerçeve kritik.
