| http://www.w3.org/ns/prov#value | - Just as bones, teeth, claws and shells allowed soft, fleshy plantlike animals to free themselves from the constraints of localized photosynthesis, the exo-skeletal mineralization of steel allows human actors to achieve new possibilities in building types, transport, the mass production of goods, and the development of nearly all subsequent forms of technology, including the processes which later a
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