By cutting up the raw material they could get multiple blades from a single large good quality stone. Although much of the complexity of the Langda adze industry would be invisible to an archaeologist, evidence of knapping skill is preserved in attributes of the durable stone artifacts produced. For the stone blade they usually used river cobblestones. Adzemaking ability is associated not only with welldeveloped perceptualmotor and cognitive skills but also with a wealth of technological knowledge. Adze production is itself a social phenomenon, defined as much by personal and group relations, social norms, and mythic significance as by specific reduction strategies and technical terminology. When Knapping, one of two results are possible, creating a Slate Blade, or failure which consumes one or both pieces of Slate. Adzemaking skill is acquired through a period of apprenticeship that may last five years or more, during which time the community of adze makers provides a social scaffold for the learning process. A Slate Blade is created ( Skills Blades Knap a Slate Blade) by striking two pieces of Slate together to create one sharpened piece a process called Knapping. experimental archaeology, and flint knapping experiments in particular, foll. This research, involving observation, interviews, and analysis of lithic products, revealed a technology of great sophistication and complexity. Rethinking the lithic blade definition: towards a dynamic understanding. For this reason, ethnographic research was undertaken among the adze makers of the village of Langda in Indonesian Irian Jaya. The elouera scraper-knife and arapia block. A Slate Blade is created ( Skills Blades Knap a Slate Blade) by striking two pieces of Slate together to create one sharpened piece a process called Knapping. Interpreting this evidence properly requires models based on observable phenomena in the modern world. The Sumatra-type is ahldeM tYPlWith which is associated a number of partly worked or semi-uniface pebble implements. Stone tools represent some of the best remaining evidence of prehistoric behavior and cognition.

A tale in the desert knap a slate blade