Wherever I wander I wonder whether I’ll ever find a place to call home…

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Cake day: December 31st, 2025

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  • wonderingwanderer@sopuli.xyztoScience Memes@mander.xyz[meme] choochoo
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    2 hours ago

    The connection to science isn’t explicit, but there’s definitely an implicit connection. There’s the engineering it would take to design efficient rail systems and modern locomotives, there’s the calculation of relative emissions cost compared to reliance on automobiles, and all the science on the impacts of those emissions, the calculated benefit of converting infrastructure to rail-based, etc.

    It doesn’t out and say it, but anyone with the basic knowledge should be able to draw the connection.



  • wonderingwanderer@sopuli.xyztoScience Memes@mander.xyz[meme] choochoo
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    3 hours ago

    Efficient planning could overcome that. A central hub with lines going to every other major hub nearby would be enough to connect all the cities. Then each route can run “express” services that only stop at major stations along the way, and “local” services, which stop at every small station. That way people can travel faster between hubs, while stilling giving access to less populated areas.

    A few transcontinental lines for high-speed trains, and some major north-south routes as well, make public transit a viable optipn for long-distance travel.

    Each city having its own metro system would make intracity public transit a viable option, reducing the need for cars and therefore reducing traffic congestion, simultaneously making it possible to make neighborhoods more walkable. A few spoke-shaped lines to reach out to surrounding suburbs, and loop-shaped lines to connect the outskirts without having to tranfer at the central hub.

    Then all you need is a few well-planned bus routes to connect suburban areas to nearby stations. The only ones this leaves out are rural areas, who would still depend on cars, but that’s a much smaller portion of the population. Eliminating the need for a car in urban and suburban areas would go a long way towards reducing congestion and pollution.

    Lots of places already have good public transportation systems, because they were built around the premise of using trains as a main mode of transport. Suburbs are built around train stations. Mixed-use zoning allows for as many residences as possible to be constructed within walking distance of a train station. And since there’s less need for parking lots, they can be built more densely to avoid wasting space.

    The car lobby in the USA did a lot of damage, and now it would be costly to convert the infrastructure. But long term, it would be a worthwhile investment.




  • wonderingwanderer@sopuli.xyztoScience Memes@mander.xyzMama!
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    1 day ago

    I don’t think anything in theoretical physics is well-settled fact.

    Edit:

    After a century of observations and theoretical advances, cosmologists can confidently state that the universe is infinite—or perhaps not. The question remains deeply complex. Current evidence suggests our expanding universe lacks both a center and edge, with the Big Bang occurring everywhere simultaneously rather than from a single point. Recent cosmic microwave background measurements indicate nearly flat geometry, supporting infinite extent theories, though alternative models proposing finite, curved space remain possible.

    Yeah, nothing about that says “well-settled fact.” Quite the opposite. Either what you said is disinfo or you need to check your reading comprehension.


  • I think it’s a logical necessity for the universe to be infinite, at least spatially. In order to be finite, it needs to have something outside of it to set a boundary containing it. But if that were the case, then there must be something beyond it, which means the space contained within that boundary would not be the entirety of the universe.

    Whether that space beyond is filled with anything or simply empty until stuff expands into it is a different question. And whether there were multiple other big bangs incomprehensibly far away from the observable universe is another question too. But neither of those possibilities implies that the big bang would have happened at every point in space simultaneously.

    Another reason that possibility is untenable is because of heat dissipation. If every point in space exploded simultaneously, not only would there be nowhere for the force to go, but there would be nowhere for the heat to dissipate too, either. The heat would be uniformly distributed throughout space, offering no possibility of cooling down and coalescing into denser states of matter. The pressure would also be infinite, with no gradient. Everything would simply be an ocean of gammawaves, with no room for expansion.



  • The geometry of explosions says otherwise. An explosion implies expansion outward from a center. If every point in space exploded at once, there would be nowhere for anything to expand, thus creating compressive forces.

    You would have to zoom out really really far, beyond the boundaries of the explosion, to see the forces expanding beyond that. And at that point, it’s just the Big Bang, only on a larger scale, and with the singularity being really a vast space seen from a much larger scale.

    To illustrate, one speck of C4 explodes in an outward direction, but put a million specks of C4 together into a continuous block, and it still explodes in an outward direction. It’s not a million tiny explosions all taking place within the space of the block.



  • I think the graph shows relative position of the planets from the sun, so the straight line is just a baseline.

    Like if you jump up and down on a plane, and the graph just shows you moving a couple of feet up and down rather than including the entire altitude change of the plane itself



  • wonderingwanderer@sopuli.xyztoScience Memes@mander.xyzMama!
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    2 days ago

    There’s also no reason to believe that expansion isn’t happening in a spheroid pattern. The big bang wouldn’t have been like a blunderbuss, more like a naval mine suspended in the abyss, exploding in all directions.

    For that matter, did the big bang ever cease, or has it continued to spew out new energy, and we’re just so inconceivably far out that our entire observable universe is just one small section of a relatively narrow range of distance from the center?

    Lastly, if the big bang is like a faucet, what if black holes are like drains in a tub, or in other words wormholes leading back to whatever realm everything came from before being spewed out by the big bang?

    Everything in the universe is cyclical; there’s no way something doesn’t complete the circuit, even if it’s just a big crunch.