Our Ending Conquest

Nonfiction, Health & Well Being, Psychology
Cover of the book Our Ending Conquest by Richard John Kosciejew, AuthorHouse
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Author: Richard John Kosciejew ISBN: 9781546259367
Publisher: AuthorHouse Publication: September 21, 2018
Imprint: AuthorHouse Language: English
Author: Richard John Kosciejew
ISBN: 9781546259367
Publisher: AuthorHouse
Publication: September 21, 2018
Imprint: AuthorHouse
Language: English

Early hominids made stone artifacts either by smashing rocks between a hammer and anvil (known as the bipolar technique) to produce usable pieces or through the regulating and directly controlled process as termed flaking, in which stone chips were fractured away from a larger rock striking it with a hammer of stone or other hard material. Subsequently, during the lingering existence of, say, ten thousand years, the diversity in techniques for producing masonry artifacts—including pecking, grinding, sawing, and boring—became additionally familiar. The best rocks for flaking tended to be hard, fine-grained, or amorphous (having no crystal structure) rocks, including lava, obsidian, ignimbrites, flint, chert, quartz, silicified limestone, quartzite, and indurated shale. Ground-stone tools could be made on a wider range of raw material types, including coarser grained rock such as granite.

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Early hominids made stone artifacts either by smashing rocks between a hammer and anvil (known as the bipolar technique) to produce usable pieces or through the regulating and directly controlled process as termed flaking, in which stone chips were fractured away from a larger rock striking it with a hammer of stone or other hard material. Subsequently, during the lingering existence of, say, ten thousand years, the diversity in techniques for producing masonry artifacts—including pecking, grinding, sawing, and boring—became additionally familiar. The best rocks for flaking tended to be hard, fine-grained, or amorphous (having no crystal structure) rocks, including lava, obsidian, ignimbrites, flint, chert, quartz, silicified limestone, quartzite, and indurated shale. Ground-stone tools could be made on a wider range of raw material types, including coarser grained rock such as granite.

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