The 1920s and 1930s marked some of the most important developments in the history of the American mass media: the film industry's conversion to synchronous sound, the rise of radio networks and advertising-supported broadcasting, the establishment of a federal regulatory framework, and the birth of a new acoustic commodity in which consumers accessed stories, songs, and other products through multiple media formats. The innovations of this period not only restructured and consolidated corporate mass media interests while shifting the conventions of media consumption. They renegotiated the social functions assigned to mass media forms. In this impeccably researched history, Steve J. Wurtzler grasps the full story of sounds media, proving that the ultimate form technology takes is never predetermined but shaped by conflicting visions of technological possibility in economic, cultural, and political realms.

The author covers the development of the electronic musical instrument from Thaddeus Cahill's Telharmonium at the turn of the last century to the MIDI synthesizers of the 1990s. --book cover.

When Thomas Edison began wiring New York City with a direct current electricity distribution system in the 1880s, he gave humankind the magic of electric light, heat, and power; in the process, though, he inadvertently opened a Pandoras Box of unimaginable illness and death. Dirty Electricity tells the story of Dr. Samuel Milham, the scientist who first alerted the world about the frightening link between occupational exposure to electromagnetic fields and human disease. Milham takes readers through his early years and education, following the twisting path that led to his discovery that most of the twentieth century diseases of civilization, including cancer, cardiovascular disease, diabetes, and suicide, are caused by electromagnetic field exposure. In the second edition, he explains how electrical exposure does its damage, and how electricity is causing our current epidemics of asthma, diabetes and obesity. Dr. Milham warns that because of the recent proliferation of radio frequency radiation from cell phones and towers, terrestrial antennas, Wi-Fi and Wi-max systems, broadband internet over power lines, and personal electronic equipment, we may be facing a looming epidemic of morbidity and mortality. In Dirty Electricity, he reveals the steps we must take, personally and as a society, to coexist with this marvelous but dangerous technology.

This book offers an in-depth analysis of the many components of guitar tone. How does an ash body differ from alder? Which bridge hardware maximizes body resonance? How do Gibson P-90 pickups differ from Fender Jazzmaster pickups? Designed for veterans and beginners alike, "Electric Guitar Sound" helps any player understand the myriad kinds of wood, hardware, and electronics available and pick a guitar with a tone and feel that is just right for them.