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S20:E10 Cast Iron Tubs, Hopi Kachina Dolls, Mine Truck Engine, Memory Cards
First Aired: January 03, 2013
Runtime: 21 min
Molten iron is cast into heavy bathtubs before the surfaces are cleaned and coated with durable enamel. Cottonwood roots are carved and painted into traditional Hopi Kachina dolls; enormous mine-truck engines are dismantled, inspected, repaired and reassembled; and semiconductor chips are mounted, enclosed and tested to create compact memory cards.
