• 0 Posts
  • 33 Comments
Joined 1 year ago
cake
Cake day: June 9th, 2023

help-circle



  • You are being downvoted as if your point was offensive or harmful. You are wrong, but it’s totally counter intuitive and I think this is a mistake that everyone makes when studying introductory physics. This would be correct for anything moving at relatively low speeds. But when you’re talking about light, or anything that goes so fast that “percentage of the speed of light” starts being a useful unit to describe their speed, this concept starts being a bit weirder.

    This is actually the basic principle of Einstein’s theory of relativity: the speed of light (in a vacuum) is the same for all observers, regardless of their frame of reference. That means that if the laser pointer emits a laser, the light is moving away from the pointer at the speed of light. If the pointer itself is moving at a speed reeeeeally close to the speed of light… Then the laser will STILL be traveling away from the pointer at the speed of light. And if you, an observer in a frame, see the pointer moving at near the speed of light emit a laser… The laser that the laser emitted is also traveling at the speed of light from your point of view.

    And there’s no wordplay here. I don’t mean that it’s light, so of course any speed it travels at is the speed of light. I mean that if you measure its speed from any reference frame, you will get around 300000000 m/s, or around 671 million miles per hour. No matter if you are also traveling at near light speed.






  • AlolanYoda@mander.xyztoScience Memes@mander.xyzSonic
    link
    fedilink
    English
    arrow-up
    17
    ·
    4 months ago

    If the hedgehog has the seven chaos emeralds, it can still take on the boar even with the triforce of power.

    If not, then it’s more of a toss up, but we should note that there is one registered instance of the hedgehog collecting triforce pieces so my bet would still be on the hedgehog.









  • AlolanYoda@mander.xyztoScience Memes@mander.xyzPR🌚🌚F
    link
    fedilink
    English
    arrow-up
    4
    ·
    6 months ago

    I once saw a website that claimed that the moon was a hologram. I guess it can still be that.

    One of the theories was that the Moon was not always a hologram, but that it was destroyed (maybe in WW2?) and now the government keeps a projection of the moon to keep people from finding out.

    Also all of the space exploration propaganda was faked. Here’s an amazing sentence that will never leave my mind: "Occam’s razor says the simplest explanation is most often the correct one. And what’s simpler: that the government spent millions of dollars, spent years doing research, with international collaborations on rocket science and astronomy, and then managed to get a manned rocket onto the moon… Or that it is all a conspiracy? ;) "