A thermoplastic is a type of plastic made from polymer resins that becomes a homogenized liquid when heated and hard when cooled.
As similar as colonial iron manufacture was to that of medieval Europe, yet it differed greatly from the type of iron manufacture in eighteenth century early modern Europe. Existing conditions of natural resources greatly affected the development of technical innovation in the field of iron manufacture.
Coal & Iron: Great Britain's large deposits of coal and iron ore helped make it the world's first industrial nation. Coal helped drive the steam engines and was needed to make iron; iron improved machines, tools, and helped to build ships and bridges.