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Thread: 3D, 4D, wtf?

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    Featured Member tRoUbLeMaKeR's Avatar
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    Default 3D, 4D, wtf?

    What's the difference between 3D and 4D movies?

    My dad wants to see Beowulf at a 3D theater because he's never seen a 3D movie. We both are thinking 3D is 3D - you wear glasses it's intense....it doesn't get better than that.

    Well then I was looking at something else online and it was advertising 4D movies....

    so is 3D not what I think it is? I'm confused
    [SIGPIC][/SIGPIC]

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    God/dess virgoamm's Avatar
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    Default Re: 3D, 4D, wtf?

    The difference is that 4D has things like water spraying on you, your seat vibrating etc.. to go along with the movie.

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    Default Re: 3D, 4D, wtf?

    ^^^ That actually exists? That is so cool, i've always wondered if there was something like that or if eventually someone would invent it.

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    Default Re: 3D, 4D, wtf?

    I am wrong in thinking the fourth dimension is Time?

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    Default Re: 3D, 4D, wtf?

    ^ It's not.

    There are three conventional spatial dimensions: length (or depth), width, and height, often expressed as x, y and z. x and y axes appear on a plane Cartesian graph. In the 3rd dimension, a z is used and is found in functions such as a "z-buffer" in computer graphics, for processing "depth" in imagery. The fourth dimension is often identified with time in physics, and as such is used to explain the non-Euclidean space-time used in Einstein's theories of special relativity and general relativity.

    When a reference is used to four-dimensional coordinates, it is likely that what is referred to is the three spatial dimensions plus a time-line. If 4 (or more) spatial dimensions are referred to, this should be stated at the outset, to avoid confusion with the more common notion that time is the Einsteinian fourth dimension.

    The implications of another spatial dimension are now discussed. This would be orthogonal to the other three spatial dimensions. The cardinal directions in the three known dimensions may be referred to as up/down (altitude), north/south (latitude), and east/west (longitude). When speaking of the fourth spatial dimension, an additional pair of terms is needed. Attested terms include ana/kata (sometimes called spissitude or spassitude), vinn/vout (used by Rudy Rucker), and upsilon/delta.

    If time is counted as the "fourth dimension", the additional fourth spatial dimension would be referred to as the fifth dimension. However if time is a constant this would make it the 0 dimension therfore making the 4th dimension an unknown.
    Common misconception, though!


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    Default Re: 3D, 4D, wtf?

    So if I stick with Einsteinian Theorems the Fourth dimension is time. However if I had a sit down with Steven Hawking the Fourth is either and static constant or no one knows what the fuck it is...........


    *room spins*

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    God/dess Lysondra's Avatar
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    Default Re: 3D, 4D, wtf?

    Quote Originally Posted by ArmySGT. View Post
    So if I stick with Einsteinian Theorems the Fourth dimension is time. However if I had a sit down with Steven Hawking the Fourth is either and static constant or no one knows what the fuck it is...........


    *room spins*
    Yes!


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    Default Re: 3D, 4D, wtf?

    The fourth is probably like the pause between the intake of a breath and exhalation. The crystalline moment shattered by the Big Bang, when All was Nothing.

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    TheSexKitten
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    Default Re: 3D, 4D, wtf?

    But isn't the 4th dimension time...? Because if it were, we'd be seeing a 3-dimensional cross section of it, just as hypothetical 2-d creatures would only be able to see 2-d cross-sections of us.

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    Default Re: 3D, 4D, wtf?

    Quote Originally Posted by Lysondra View Post
    ^ It's not.
    Common misconception, though!
    ^^^

    Agreed. Time could exist in a one, or two dimensional universe, so it doesn't make sense to think of it as the 4th dimension where the previous three dimensions are spatial. It makes far more sense to think of 4th and higher dimensions as spatial as well.

  11. #11
    TheSexKitten
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    Default Re: 3D, 4D, wtf?

    Ahh, but time could be spatial if we cannot see it now!

    ..scuse me I'm a bit high

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    Default Re: 3D, 4D, wtf?

    Quote Originally Posted by pinkkitten View Post
    ^^^ That actually exists? That is so cool, i've always wondered if there was something like that or if eventually someone would invent it.
    Yup, it sure does. It's pretty neat. I went to my first one at Moody Gardens in Galveston a little over a month ago.

    Here's how their website explains it:

    See, hear, feel and smell the action! Hi-def digital 3D projection, audio and show control systems combined with special effects, such as wind, smoke, mist, leg ticklers, seat buzzers and SFX lighting and DTS surround sound system immerse you in a unique theater experience that is a thrill for all ages.

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