Technological innovation (Other Keyword)

DOCUMENT Citation Only H. Kory Cooper. Matthew Pike. Garett Hunt.

This is an abstract from the "From Hard Rock to Heavy Metal: Metal Tool Production and Use by Indigenous Hunter-Gatherers in North America" session, at the 88th annual meeting of the Society for American Archaeology. Precontact Indigenous copper technological practices within the North American Northwest vary along regional, cultural, and temporal axes. After being screened for smelted metals and alloys using pXRF compositional data, we identified multiple significant patterns of...

DOCUMENT Citation Only Masanori Kawano.

This paper discusses an aspect of the social change that took place in Kofun Period western Japan as a result of evolution of digging tools. The iron blades of such digging tools changes from rectangular plates with bent edges to U-shaped edges in the fifth century A.D. This change was not merely morphological but technological as well. Background to this change was the introduction of highly advanced smith technique from the Korean peninsula. This technological innovation diffused to all...