Colors on this thing span the Skittles rainbow of green, orange, red, blue and a new metallic blue, Azzurro Thetys, whose tone varies with the angle of the light.

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We then take hundreds of these narrow videos (each shot at a slightly different angle) and create a carefully synchronized, slow-motion composite of the light pulses.

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"Light coming in at a high angle will illuminate the sides of the blades, causing them to retreat away, " he explained.

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The sight of small white figures endlessly regrouping, wandering about, pondering the light, all seen from one fixed angle, made poor spectator sport and even worse television.

ECONOMIST: Kerry Packer