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  1. #1
    Player
    Alzelia's Avatar
    Join Date
    Apr 2011
    Posts
    323
    Character
    Alzelia Shey
    World
    Hyperion
    Main Class
    Carpenter Lv 50
    Quote Originally Posted by Rydin View Post
    Dalamud is obviously very small, so small, in fact, that it would have no gravitational effect on the planet by falling
    Hell, even if the BIG moon fell, the only gravitational effect would be on the water (Because it is moving and therefore easier to be affected by the moons gravitational pull)
    The biggest thing that would change if the "Big Moon" fell would be be that the planet would no longer orbit the barycenter. Since the planet doesn't appear to "Orbit" the moon, it is assumed that the barycenter is within the planet, meaning the planet's size is much larger than that of even the larger moon

    Also, since there has been no change in the day/night cycle or the planet's rotation, then it is assumed that Dalamud is not large enough to have effected the Barycenter in any noticeable way and is therefore not large enough to cause any type of large-scale gravitational tidal anomolies
    There are so many scientific inaccuracies in this one post it makes me lol! You need to read up on General Relativity.

    Quote Originally Posted by ChickNorris View Post
    Actually if any planet were to lose a moon that was previously in orbit around it, there would be more than just tidal changes. I am not sure also how you can say that a gravitational pull does not exist but then mention how it will affect the tides. The gravitational pull is what creates the tides. Water is on the planet...therefore, moons do affect planets.

    Wait! There is more! If we lose our moon by it not existing or falling out of orbit, the Earth's rotation would be affected and speed up. It is the dynamic of distance, pull, momentum that causes us to rotate at the speed we do. We would end up with only the Sun's pull which would cause our day to be 1/2 to 2/3 shorter. The faster rotation would mean great changes for everyone...think of the surface winds, the 8-12 hour days, so many other things affected by this. In the game it translates to what was mentioned...the sea, the crops, the monsters, etc.l

    Your use of barycentre is wrong. A barycentre is the center of mass, not the center of a planet. A center of mass is established like the moon(s) rotation and the planet in balance with each other. Our Earth does not sit and spin. It rotates and orbits along a fixed line that is in balance with the bodies around it, that are also doing the same thing. That spot, that center which the earth and its bodies orbit in balance is your barycentre...your center of gravity/center of mass.
    This one is slightly better, but the length of the day wouldn't change if the moon disappeared, the moon is very gradually slowing down the spin of the earth. If the moon disappeared, the deceleration would stop, and our days would remain at 24 hour days.

    It's just a game anyways! And it's a fantasy game, science doesn't matter.
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    Last edited by Alzelia; 05-05-2012 at 07:17 AM.

  2. #2
    Player
    Rydin's Avatar
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    Mar 2011
    Location
    Gridania
    Posts
    2,821
    Character
    Nyris Reach
    World
    Jenova
    Main Class
    Lancer Lv 50
    Quote Originally Posted by Alzelia View Post
    There are so many scientific inaccuracies in this one post it makes me lol! You need to read up on General Relativity.

    name one???
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