• ___@lemm.ee
    ·
    edit-2
    12 hours ago

    If two moving balls hit each other and bounce apart, it’s the exact same thing as if you held the frame steady on one ball and viewed the other ball as moving faster. Just seems like the stationary ball gets heavier…

    Perspective is everything.

    • lattrommi@lemmy.ml
      ·
      6 hours ago

      This link is about the moon but it starts by covering how to view space and orbital objects including simulators which allow one to do what you describe, as well as the ability to move the camera from on ball to the other and many other interesting simulations. https://ciechanow.ski/moon/

    • sgtlion [any]
      ·
      8 hours ago

      This phenomenon is known as Galilean invariance (or Galilean relativity). Yep, as well as all the astronomical shit, the same Galileo was also the first to describe this.