Dip white fabric in the muddy-colored indigo dye vat, and the cloth emerges green, then slowly turns azure, cobalt, or sapphire before your eyes. The chemistry behind this reaction will be revealed—and practiced—in this course. This mysterious dye has an intriguing history, and we will study its societal and environmental impact from antiquity to the present. We will explore the use of indigo by different cultures, and each student will have the opportunity to replicate one of the techniques used to dye fabric with indigo. We will learn about the equipment used in producing indigo dye, and the three sources of indigo: synthetic, natural, and biosynthetic. The course will culminate with the design of a new indigo production facility. Students will need to determine what type of indigo to produce, the location of the facility (i.e., rural or populated area? how will it impact the population?), what environmental concerns to consider, and other aspects of a new facility.
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机译：识字和算术磁性图。白色磁性片，可轻松放置在白板上。各种类型的图表，包括大型写作图表，Andrewa的电磁数学表格和学生魔术写作图表。图表可以水平（600x900mm）或（250x200mm）或垂直（900mmx600mm）排列。写作图表用虚线表示。粗线为蓝色，虚线为红色。 Andrewa的Magnetic Math Grid由50x50mm的蓝色方块组成;网格为594x841mm，由十七行十一列组成。
