It can look dumb, but I always had this question as a kid, what physical principles would prevent this?

  • OutsiderInside@lemmy.world
    2·
    4 hours ago

    I’m not sure. The beam of light would bend as it travels to the moon, delaying the projected dot on the moons surface.

    Just like it happens with a stream of water coming out of a hose. You point the hose in a new direction, but it won’t get wet before the the time it takes the water to travel from the hose to the pointed location.