An exploration of echo not as simple repetition but as an agent of creative possibilities. In this volume in the MIT Press Essential Knowledge series, Amit Pinchevski proposes that echo is not simple repetition and the reproduction of sameness but an agent of change and a source of creation and creativity. Pinchevski views echo as a medium, connecting and mediating across and between disparate domains. He reminds us that the mythological Echo, sentenced by Juno to repeat the last words of others, found a way to make repetition expressive. So too does echo introduce variation into sameness, mediating between self and other, inside and outside, known and unknown, near and far. Echo has the potential to bring back something unexpected, either more or less than what was sent. Pinchevski distinguishes echo from the closely related but sometimes conflated reflection, reverberation, and resonance; considers echolalia as an active, reactive, and creative vocalic force, the launching pad of speech; and explores echo as a rhetorical device, steering between appropriation and response while always maintaining relation. He examines the trope of echo chamber and both destructive and constructive echoing; describes various echo techniques and how echo can serve practical purposes from echolocation in bats and submarines to architecture and sound recording; explores echo as a link to the past, both literally and metaphorically; and considers echo as medium using Marshall McLuhan’s tetrad.

Written by two well-known experts in the field with input from a broad network of industry specialists, The ROV Manual, Second Edition provides a complete training and reference guide to the use of observation class ROVs for surveying, inspection, and research purposes. This new edition has been thoroughly revised and substantially expanded, with nine new chapters, increased coverage of mid-sized ROVs, and extensive information on subsystems and enabling technologies. Useful tips are included throughout to guide users in gaining the maximum benefit from ROV technology in deep water applications. Intended for marine and offshore engineers and technicians using ROVs, The ROV Manual, Second Edition is also suitable for use by ROV designers and project managers in client companies making use of ROV technology. - A complete user guide to observation class ROV (remotely operated vehicle) technology and underwater deployment for industrial, commercial, scientific, and recreational tasks - Substantially expanded, with nine new chapters and a new five-part structure separating information on the industry, the vehicle, payload sensors, and other aspects - Packed with hard-won insights and advice to help you achieve mission results quickly and efficiently

Never to Return is the harrowing tale of the torpedoing and sinking of a Coast Guard ship and the loss of 171 Coast Guardsmen off the coast of Iceland during WWII. The USS Leopold was a U.S. Coast Guard destroyer escort in a convoy of merchant ships carrying war materiel to England, on the lookout for the deadly U-boat wolf packs lurking in the North Atlantic. The Leopold was largely unarmored, lightly armed, and no match for the U-255’s torpedoes. Never to Return is the story of gunner Sparky Nersasian and his shipmates’ struggles to survive the Leopold’s sinking.

With the advent of new technology at lower prices, high-quality home recording has become an accessible and even essential aspect of being a musician today. Multi-Track Recording is an introduction and guide to the latest equipment, how it works, and how to use it. Designed by the publishers of Guitar Player and Keyboard magazines, this comprehensive and easy-to-understand book explains how to set up a home studio with 4-track tape recorders, how to choose outboard gear and effects devices for your own unique sound, how to synchronize your tracks with various simple and advanced technologies, and how to incorporate MIDI in your home recording, whether it's analog or digital. Suitable for both working at home and advancing to the studio, Multi-Track Recording offers invaluable tips on choosing a mixer, soundproofing, echo and delay, reverb, compression, stereo, noise gates, sync tones and click tracks, SMPTE, drum machines, MIDI time code, advanced techniques and the latest applications and MIDI and tapeless recording. Written by working musicians and studio professionals, the book has practical creative tips as well as the basic information, theory and technique necessary to make professional sounding multi-track recordings-yourself.