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Cake day: July 17th, 2023

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  • In actual reality there would be wind and water currents diverting any ship sailing that route from the depicted “line” anyway so the whole argument is pointless

    The only straight line paths in the universe are followed by electrostatically uncharged non-accelerating objects in free fall in a vacuum. Or massless particles.












  • Wilzax@lemmy.worldtoLemmy Shitpost@lemmy.worldIQ Test
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    2 months ago

    Yes, movement is undetectable unless you have something to track your movement against. In fact, there’s no way to define “staying still” that’s true for everyone in the universe.

    You can only feel acceleration, not constant speed movement.

    2x the speed of light is impossible. As things move faster, time slows down so they can’t make as big of a change to their movement speed using the same amount of energy. Instead, lengths contract so your destination doesn’t appear to be as far as it would have been at the start of your journey.


  • From your perspective, eventually things don’t move faster by a noticeable amount, but the length of objects starts to shorten, so you can pass much more stuff at a slightly faster speed. You will never see anything move faster than light, it just shortens itself into a 2d object with 0 depth as it approaches the speed of light.

    So not a bajillion km a sec, just 300,000 km/sec