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Joined 2 years ago
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Cake day: July 26th, 2023

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  • psud@aussie.zonetoScience Memes@mander.xyzFictional
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    2 days ago

    If the photons were travelling faster than the local speed of light, why would light be emitted? The Cherenkov radiation takes away the excess energy as the light is immediately slowed as it moves from whatever radioactive metal to water

    Gravity waves are indeed different. I don’t know the maths of relativity, but I bet those equations also require specific wave speeds. They don’t care about matter aside from it’s gravity which can bend space-time and change the wave path

    I think we’re pushing this beyond both our understanding

    Measuring causality/c despite those being given by our maths refines our values for the various constants



  • psud@aussie.zonetoScience Memes@mander.xyzPosers
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    2 days ago

    It’s a style, not a genre, it’s also more than one style. Anime comes in every genre. There are many diverse anime films and series.

    Of course some are made for children and others for adults. If all you have seen is children’s series you probably haven’t got any idea what anime has.



  • psud@aussie.zonetoRPGMemes @ttrpg.networkGuidelines
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    2 days ago

    I give my players pretty wide latitude, after a few sessions they generally agree with me if their character isn’t working well. Too weak can be treated with better weapons; too powerful get bored and go home. One of the too powerful synergised two powers to become practically invulnerable








  • Observation isn’t necessary. You can add a photon detector to a double slit experiment and never observe the output. A quantum state will decohere if a particle emits a photon (which it will do as it’s over zero Kelvins) and that photon hits anything

    In what way is “observation” the best word for a deep infra red photon hitting air or metal that no one sees?




  • 5 days seems pretty reasonable to design and build most stuff. It’s function and system/integrated test that takes time not to say there’s not random bits of work that take months before anything testable can be produced.

    *My experience is in giant systems processing mainframe class data. The programmers in my team use COBOL



  • psud@aussie.zonetoScience Memes@mander.xyzFictional
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    2 days ago

    If you consider light in motion as a wave (as it is in EM models and I think also in current mainstream physics) then you can’t expect it to work like matter. The speed of light is the speed at which EM waves propagate. Causality is the same because many interactions are mediated by exchange of photons via EM waves.

    The speed of light in aluminium is ~0.95c, the EM waves in an aluminium antenna aren’t going to interact outside the aluminium faster than 0.95c. I would bet the effective speed of causality would never be greater than the speed of light in whatever medium the light is in


  • psud@aussie.zonetoScience Memes@mander.xyzFictional
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    2 days ago

    In radio electronics we abbreviate c to 300 000km/s (when working in kHz, different multipliers in other bands for easy maths). The number as it is is round enough when rounded to the whole hundred million for practical purposes with commodity hardware

    We could redefine the metre to be 1.00069229…x it’s current size (increase it by 0.69229…mm) to make the speed of light exactly 300 000 000ms-1. This would also change area and volume, and any other units that are derived from length