![matthen:
Walking down a corridor, it’s interesting to see how your image of what’s in front of you shifts with your steps. Mathematically, your eye is forming a projection of the 3D world onto the 2D retina, and as it moves slightly closer to the walls and the ceiling/floor as you walk, the perspective changes. This is one example of creating a lower dimensional representation of a higher dimensional reality, another example would be projections of the globe. [more] [code]](http://27.media.tumblr.com/tumblr_lw41iarn441qfg7o3o1_r1_400.gif)
Walking down a corridor, it’s interesting to see how your image of what’s in front of you shifts with your steps. Mathematically, your eye is forming a projection of the 3D world onto the 2D retina, and as it moves slightly closer to the walls and the ceiling/floor as you walk, the perspective changes. This is one example of creating a lower dimensional representation of a higher dimensional reality, another example would be projections of the globe. [more] [code]
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All I thought was “Walk with me, down a hall, it’s a hall that you know and at the end there’s a door, a door that...
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