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Picture Perfect

Shira Yehudit Djalilmand

Most of us have probably seen 3-D pictures or movies, while wearing those strange red and green glasses. But how many of actually know what 3-D is, or how it works?

Wednesday, May 28, 2014

What is 3D? The word “3-D” is actually an abbreviation, or shortened version, of “three-dimensional.” A dimension is measurement of the size of something in particular direction,such as the length, width,height,diameter, or volume. In geometry,a point has zerodimensions;figure having only length,such as line,has one dimension; plane or surface (flat object) has twodimensions;and figure having volume (depth)three dimensions. A regular photo or video clip is in 2-D — the two dimensions of width and height. But real life isn’t two-dimensional, it’s three-dimensional, as our physical world also has depth to it. For example, in the physical world, the mountains may be miles away behind the river, but a flat two-dimensional picture can’t show that clearly. Something 3-D, however, has all three dimensions of width, height, and depth, and so if you see an image in 3-D, it looks much more realistic, as it’s that much closer to how we really see things. 

 

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