Sound
In physics, sound is a vibration that typically propagates as an audible wave of pressure, through a transmission medium such as a gas, liquid or solid.
Technology
Technology ("science of craft", from Greek τέχνη, techne, "art, skill, cunning of hand"; and -λογία, -logia) is first robustly defined by Jacob Bigelow in 1829 as: "...principles, processes, and nomenclatures of the more conspicuous arts, particularly those which involve applications of science, and which may be considered useful, by promoting the benefit of society, together with the emolument [compensation ] of those who pursue them" .
Sound
Carpenters' and ironworkers' shops are dominated by the heavier sounds of machinery and occasional yells across the floor; in goldsmiths' shops the silences are punctuated by more delicate work noises, but the apprentices' sullen silence and the artisans' grim absorption in the work at hand are, if anything, more oppressive, although there may be a little amiable banter between a master goldsmith and an older apprentice clearly already in possession of advanced technical skills.
Michael Herzfeld (2004). The Body Impolitic: Artisans and Artifice in the Global Hierarchy of Value. University of Chicago Press. p. 81. ISBN 978-0-226-32914-7.
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