5 Cool Inventions You Probably Didn't Know Exist

These inventions are more like science fiction than real life, but they do really exist in our present life....

Interactive 360º 3-D Holographic Displays

The Graphics Lab at the University of Southern California has come up with a cheap way to create images in 3D space (as opposed to planar space) by using a spinning mirror called a light-field display. Basically high speed video is projected onto a quickly spinning mirror, which then "reflects a different and accurate image to each potential viewer." The system uses an algorithm to figure out the correct shading and occlusion for the image.

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