until,
you expose the piece to sunlight or a artificial light source, then the acrylic
tile suddenly reveals a 2- or 3D figure, the magical window, which is the inventive design of
aerospace and software engineer Matt Ferraro, relies on caustic patterns, the physical
phenomenon that casts shadows and bright spots when light filters through a
glass or other transparent object. By slightly altering the curvature of the
acrylic surface by no more than two millimetres at any spot, Ferraro
transformed the seemingly blank square into an extraordinary light-activated
device that produces a holographic cat, his cat as it happens,
the San
Francisco-based engineer details the physics behind the two-dimensional aspects
of the design in a
post on his site, you can follow him on Twitter, I am trying to think of a application for this, but in any event it seems so neat.
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