Over the years the copper has turned green because of a chemical reaction called patination. 年长日久,铜面在被称为“锈蚀”的化学反应的作用下变为绿色。
Developing concepts on composition, he creates pieces with larger areas of plain sheet metal and patination in blocks so the viewer can respond emotionally to the base metal. 在构图的概念方面,他运用了大面积的金属片和层叠的薄片,务求令观赏者能够对最底层的金属做出感性的反应。