<em>Pulse Spiral</em>

Rafael Lozano-Hemmer
Pulse Spiral, 2008
400 incandescent light bulbs, heart sensor, metal sculpture, DMX cable, digital dimmers, computer, custom software
Dimensions variable
Installation view at the Center for Contemporary Culture, Moscow.

The layout of lightbulbs for Pulse Spiral is based on the phyllotaxis spirals that are naturally derived from Fermat’s equation r=±ø^1/2. This pattern creates a spiral with the golden angle of 137.5º, which is often found in nature, for instance in sunowers. It turns out this pattern produces the most even–and beautiful– three dimensional distribution of lightbulbs, forming a spiral paraboloid.

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