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Light Up is 20 feet and 6 inches in height and most noted for it being a bright shade of yellow; a departure from the sculptor's more numerous black works. It combines a tetrahedron and octahedron into what Smith described as a "continuous space grid" which "may be seen as interruptions in an otherwise unbroken flow of space."In its public settings it has been seen to be a stark comparison to the surrounding colors and shapes of its neighboring architecture, with one writer describing it in comparison to an adjacent Ludwig Mies van der Rohe skyscraper in its temporary New York retrospective setting as being "a jazzy counterpoint to its staid geometry." For this reason some posit Smith's intention, for its original setting, was to lighten up its surroundings and perhaps the attitudes of passers-by. Although Smith acknowledged that the color provided warmth against the sculpture's original backdrop which was a dark building, Smith's actual inspiration came from his observation of yellow newspaper truck driving around Pittsburgh that he had witnessed from a vantage point on the Mount Washington overlook above the city's downtown.
sculpture Pittsburgh Ludwig Mies van der Rohe Mount Washington