S19E10: Clay, Pitted Prunes, Spurs, Polyurethane Tires

Raw clay is excavated, crushed, analysed and blended into a consistent material for industrial use. Dried plums are softened, mechanically pitted and graded; metal is shaped and decorated into riding spurs; and liquid polyurethane is poured into moulds and cured around wheel hubs to produce resilient tires.