For the past 25 years I've worked primarily as a shoemaker and teacher...
Along the way I have amassed a large collection of leather and woodworking tools... many hand tools, but also many modern electric power tools and industrial sewing machines. My shop can get quite noisy at times. As I've worked with these tools through the years I've become accustomed to the rhythms and overtones the motors produce... in fact it's pretty common for me to find students banging their heads, humming, hammering in time or bopping to those rhythms.
I finally brought recorder, elektromagnetic and contact mics out to the shop and have begun a serious effort to capture and document some of the machines audible and hidden sounds... These pieces are a mix of recordings taken from the operation of my sanders, burnisher, dust collector, compressor, grinder, industrial sewing machines, exhaust fan, outsole stiticher, insole stitcher, degassing chamber compressor and autonailer. The only manipulation to the recordings i"ve made is a bit of EQ and compression... these sounds are otherwise un -altered and un-effected...
The concept of "lines of force" was introduced into physics in the 1830s by the English scientist Michael Faraday, who considered magnetic and electric effects in the region around a magnet or electric charge as a property of the region rather than an effect taking place at a distance from a cause.
More abstractly, lines of force are lines in any such force field the tangent of which at any point gives the field direction at that point and the density of which gives the magnitude of the field.
electromagnetic field:
a property of space caused by the motion of an electric charge. A stationary charge will produce only an electric field in the surrounding space. If the charge is moving, a magnetic field is also produced. An electric field can be produced also by a changing magnetic field. The mutual interaction of electric and magnetic fields produces an electromagnetic field, which is considered as having its own existence in space apart from the charges or currents (a stream of moving charges) with which it may be related. Under certain circumstances, this electromagnetic field can be described as a wave transporting electromagnetic energy.
credits
released March 28, 2024
recorded on ZOOM F6 (32/96)
using LOM Geofon and Elektrousi, Ed Devane magnetic contact mics, WHAM sismophone,
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