Two Lines Oblique

By A Bench
(1 of 8) (4881 views)

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This kinetic sculpture was located in the sculpture garden of the San Diego Museum of Art in Balboa Park. The morning was pleasant with only a slight breeze. But, despite the weak airflow, the sculpture performed well.


Two Lines Oblique 1993   •  Artist: George Rickey   •  The San Diego Museum Of Art   •  Balboa Park, San Diego, California   •  (Photo posted Monday 31 January 2011)   •  (Photo taken 11:44:04 Tuesday 12 October 2010)   •  © 2011 Bryan Costales Creative Commons Attribution-NonCommercial License #BCX_9561
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Static Central Y
(2 of 8) (2849 views)

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The central support for this kinetic sculpture was a metal Y-shape. The moving parts were attached to this Y.


Two Lines Oblique 1993   •  Artist: George Rickey   •  The San Diego Museum Of Art   •  Balboa Park, San Diego, California   •  (Photo posted Monday 31 January 2011)   •  (Photo taken 11:44:07 Tuesday 12 October 2010)   •  © 2011 Bryan Costales Creative Commons Attribution-NonCommercial License #BCX_9562
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Tapered Arms Rotated
(3 of 8) (2809 views)

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Comparing the previous photo to this one, the tapered arms attached to the static Y-shaped core moved in the wind. Each moving arm was a tapered rod attached to the Y-shaped core at its balance point.


Two Lines Oblique 1993   •  Artist: George Rickey   •  The San Diego Museum Of Art   •  Balboa Park, San Diego, California   •  (Photo posted Monday 31 January 2011)   •  (Photo taken 11:44:13 Tuesday 12 October 2010)   •  © 2011 Bryan Costales Creative Commons Attribution-NonCommercial License #BCX_9564
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Base Bolted Down
(4 of 8) (2851 views)

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The central Y-shaped support was bolted to a concrete pad set into the sod and nestled into a bush.


Two Lines Oblique 1993   •  Artist: George Rickey   •  The San Diego Museum Of Art   •  Balboa Park, San Diego, California   •  (Photo posted Monday 31 January 2011)   •  (Photo taken 11:44:35 Tuesday 12 October 2010)   •  © 2011 Bryan Costales Creative Commons Attribution-NonCommercial License #BCX_9565
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Stainless Steel Support
(5 of 8) (2821 views)

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The central support was a burnished stainless steel. The original buff marks could still be found in its surface.


Two Lines Oblique 1993   •  Artist: George Rickey   •  The San Diego Museum Of Art   •  Balboa Park, San Diego, California   •  (Photo posted Monday 31 January 2011)   •  (Photo taken 11:44:40 Tuesday 12 October 2010)   •  © 2011 Bryan Costales Creative Commons Attribution-NonCommercial License #BCX_9566
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The Y-Shape
(6 of 8) (2794 views)

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The central static support was a Y-shaped made from stainless steel.


Two Lines Oblique 1993   •  Artist: George Rickey   •  The San Diego Museum Of Art   •  Balboa Park, San Diego, California   •  (Photo posted Monday 31 January 2011)   •  (Photo taken 11:44:44 Tuesday 12 October 2010)   •  © 2011 Bryan Costales Creative Commons Attribution-NonCommercial License #BCX_9567
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Arm Pivot
(7 of 8) (2831 views)

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Each arm was attached with a stout pivot that appeared to be a ball bearing.


Two Lines Oblique 1993   •  Artist: George Rickey   •  The San Diego Museum Of Art   •  Balboa Park, San Diego, California   •  (Photo posted Monday 31 January 2011)   •  (Photo taken 11:44:53 Tuesday 12 October 2010)   •  © 2011 Bryan Costales Creative Commons Attribution-NonCommercial License #BCX_9568
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Tapered Arm
(8 of 8) (2862 views)

Two_Lines_Oblique_20101012_114458_BCX_9569.jpg

The moving arm was slightly tapered causing its balance point to be significantly offset toward the wide end. Although the two parts weighed the same, the surface area was greater for the longer arm. It was this surface area difference that caused the sculpture to move.


Two Lines Oblique 1993   •  Artist: George Rickey   •  The San Diego Museum Of Art   •  Balboa Park, San Diego, California   •  (Photo posted Monday 31 January 2011)   •  (Photo taken 11:44:58 Tuesday 12 October 2010)   •  © 2011 Bryan Costales Creative Commons Attribution-NonCommercial License #BCX_9569
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