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john roach

Gravity's Reverb: Listening to Space-Time, or Articulating the Sounds of Gravitational-... - 1 views

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    In February 2016, U.S.-based astronomers announced that they had detected gravitational waves, vibrations in the substance of space-time. When they made the detection public, they translated the signal into sound, a "chirp," a sound wave swooping up in frequency, indexing, scientists said, the collision of two black holes 1.3 billion years ago. Drawing on interviews with gravitational-wave scientists at MIT and interpreting popular representations of this cosmic audio, I ask after these scientists' acoustemology-that is, what the anthropologist of sound Steven Feld would call their "sonic way of knowing and being." Some scientists suggest that interpreting gravitational-wave sounds requires them to develop a "vocabulary," a trained judgment about how to listen to the impress of interstellar vibration on the medium of the detector. Gravitational-wave detection sounds, I argue, are thus articulations of theories with models and of models with instrumental captures of the cosmically nonhuman. Such articulations, based on mathematical and technological formalisms-Einstein's equations, interferometric observatories, and sound files-operate alongside less fully disciplined collections of acoustic, auditory, and even musical metaphors, which I call informalisms. Those informalisms then bounce back on the original articulations, leading to rhetorical reverb, in which articulations-amplified through analogies, similes, and metaphors-become difficult to fully isolate from the rhetorical reflections they generate. Filtering analysis through a number of accompanying sound files, this article contributes to the anthropology of listening, positing that scientific audition often operates by listening through technologies that have been tuned to render theories and their accompanying formalisms both materially explicit and interpretively resonant.
john roach

Physicists Discover a Remarkable New Type of Sound Wave - 0 views

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    "Can you imagine sound travels in the same way as light does? A research team at City University of Hong Kong (CityU) discovered a new type of sound wave: the airborne sound wave vibrates transversely and carries both spin and orbital angular momentum like light does. The findings shattered scientists' previous beliefs about the sound wave, opening an avenue to the development of novel applications in acoustic communications, acoustic sensing, and imaging."
john roach

Raviv Ganchrow: In the Company of Long Waves on Vimeo - 0 views

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    "SONIC ACTS Festival - The Geologic Imagination Raviv Ganchrow: In the Company of Long Waves 1 March 2015 - Paradiso, Amsterdam, the Netherlands --- The saturated spectrum of infrasound suggests that toned-down sounds don't necessarily diminish. The lowest threshold of human hearing is also the upper register of an immense sonic territory that literally interfaces landmass with oceans and skies. Raviv Ganchrow introduces the theme of extensive acoustic waves in the context of his Long-Wave Synthesis project where marine oscillations, streaking meteors, calving glaciers, gas flares and nuclear explosions coexist; where sound become so heavy it's affected by gravity; and where oscillations slow down to such an extent that they spill over into weather."
john roach

Sound Visualizer & Chladni Patterns Formed on a Plastic Bucket // Homemade Science with... - 0 views

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    "The Sound Visualizer and the Chladni Bucket are used to show how vibrations from sound waves are able to create some very beautiful patterns using a few simple pieces of equipment. As compression waves from sound hit a surface it may cause standing waves to form. "
john roach

Long Wave Synthesis - Everyday Listening - Sound Art, Sound Installations, So... - 1 views

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    "Long Wave Synthesis. A huge land-art scale sound art installation that investigates infrasound, and probes the relations between how we perceive the landscape and long-wave vibrations. "
john roach

Acoustics Chapter One: Reflection - 0 views

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    Chapter One: An Acoustics Primer Sound waves reflect off of harder surfaces the same way billiard balls bounce off the bumpers of a pool table-the angle of incidence equals the angle of reflection. A sound wave hitting a flat wall at 45° will reflect off it at 45°. These bounces will continue until the sound has been completely attenuated by the inefficient reflection (called damping) of the surfaces along with the normal falloff of the sound waves themselves."
john roach

eva schindling - but does it float - 0 views

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    ""Sound travels as compression waves through gases and liquids. Stable in its immateriality it remains true to its original data. Here sound input has a stronger power over a flow field. It creates waves that propagate through the fluid. When two sound waves run towards each other, they collide and interfere with each other's patterns. A snapshot of this collision is translated into a 3D model and produced with a milling machine." -Eva Schindling"
john roach

Oil, Gas Drilling Seems To Make The Earth Slip And Go Boom : NPR - 1 views

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    "They're actually hearing the wave that traveled through the rock all the way to the Earth's surface," says William Ellsworth, a seismologist with the U.S. Geological Survey. "When a fault slips suddenly underground, it radiates two different kinds of seismic waves."
john roach

Gravity's Reverb: Listening to Space-Time, or Articulating the Sounds of Gravitational-... - 1 views

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    "In February 2016, U.S.-based astronomers announced that they had detected gravitational waves, vibrations in the substance of space-time. When they made the detection public, they translated the signal into sound, a "chirp," a sound wave swooping up in frequency, indexing, scientists said, the collision of two black holes 1.3 billion years ago. Drawing"
john roach

Ryoji Ikeda's latest work is an orchestra of sine wave synths playing through 100 cars ... - 1 views

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    "As part of RBMA L.A Festival, Ryoji Ikeda presented a new piece called A [for 100 cars], another one based in his exploration of sine waves. This time the concert was done through the custom sound systems of 100 cars which gathered in Los Angeles, each of them equipped with a custom sine wave synth created by Tatsuya Takahashi. Each devices was designed to play a score which goes around the different conceptions of the fundamental note, A, commonly considered in 440Hz, but here questioned in mesmerizing variations."
john roach

ALMA MUSIC BOX - Melody of a dying star - 2 views

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    ALMA (Atacama Large Millimeter/submillimeter Array) is a state-of-the-art radio telescope developed and operated by 20 countries and territories in East Asia, Europa and North America in cooperation with the Republic of Chile. Connecting 66 parabola antennas deployed in the Atacama Desert in northern Chile, ALMA works as a giant radio telescope with a diameter comparable to the size of the Yamanote Line. ALMA detects faint radio waves emanated by distant celestial objects to study the origin and evolution of galaxies, stars, and planets. Obtaining a clue to the origin of life is another goal of ALMA. In 2011, ALMA observed radio waves from a dying star "R Sculptoris." The ALMA MUSIC BOX made use of this data, and translated the 70 different radio images onto 70 musical discs.
john roach

On the Sonority of Clay : Dan Scott - 1 views

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    "An ongoing project that started life during a one week residency at the Soundfjord Gallery. My proposal was as follows: A letter written to the journal IEEE in 1969 suggests the curious possibility of clay sound recordings from antiquity. Claiming to have evidence, an enigmatic scholar named Richard G. Woodbridge III outlines a hypothesis: sound, by causing a shimmering of airwaves, leaves traces on materials the waves break upon; wet paint, for example, or the soft, wet clay spun by a potter. Using suitable technology a contemporary listener might hear these traces, so allowing a rehearing of whatever sonic activity was occurring in that original impact of sound wave and substance."
john roach

Ghosts, Radio Waves, Spiritualism and Contextualism in the Art of Aki Onda - 0 views

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    "Onda started talking to people who work in radio and learning about mysterious transmissions, coded messages from government broadcasts, and other unusual sounds that float through the radio waves. But nobody could decipher the recordings he'd been collecting."
john roach

Quantum microphone captures extremely weak sound - 0 views

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    "Scientists from Chalmers have demonstrated a new kind of detector for sound at the level of quietness of quantum mechanics. The result offers prospects of a new class of quantum hybrid circuits that mix acoustic elements with electrical ones, and may help illuminate new phenomena of quantum physics. The results have been published in Nature Physics. ​The "quantum microphone" is based on a single electron transistor, that is, a transistor where the current passes one electron at a time. The acoustic waves studied by the research team propagate over the surface of a crystalline microchip, and resemble the ripples formed on a pond when a pebble is thrown into it. The wavelength of the sound is a mere 3 micrometers, but the detector is even smaller, and capable of rapidly sensing the acoustic waves as they pass by."
john roach

The 'Lorem Ipsum' of sound - TWMW - 1 views

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    "A sound art installation exploring the infamous Latin 'Lorem Ipsum' text, used in publishing and editorial contexts, which allows focusing only on the visual and graphical aspects of the product. If the human ear can be compared to a radio receiver that is able to decode electromagnetic waves and recode them as sound, the human voice may be compared to the radio transmitter in being able to translate sound into electromagnetic waves.  The characteristic role of language with respect to thought is not to create a material phonic means for expressing ideas, but to serve as a link between thought and sound."
john roach

Sound Waves and their Sources (1933) - YouTube - 1 views

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    "Sound Waves And Their Sources (1933) - Educational film that covers the basics of acoustics. How sound propagates through a medium, pitch, timbre, loudness etc. Dated but accurate."
john roach

EAR | WAVE | EVENT 5 : Reviews (1) - 0 views

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    None of the music on this website exists. But don't you wish it did? The reviews that make up this preview of EAR WAVE EVENT were created by a neural network fed and trained on contemporary music press. Inverting the normal flow of music criticism, we invite artists to use these reviews prescriptively - to create realizations of musics 'imagined' by a prosthetic mind.
john roach

NASA Exoplanets on Twitter: "The misconception that there is no sound in space originat... - 0 views

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    "The misconception that there is no sound in space originates because most space is a ~vacuum, providing no way for sound waves to travel. A galaxy cluster has so much gas that we've picked up actual sound. Here it's amplified, and mixed with other data, to hear a black hole!"
john roach

Paint on a Drum in 4K Slow Mo - The Slow Mo Guys - 0 views

shared by john roach on 30 Apr 16 - No Cached
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    Slow motion - paint - impact waves
john roach

Reviving Radio: An Old Technology Remains Relevant - YES! Magazine - 0 views

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    "When did you last use radio technology? If you're straining to remember when you last turned on the AM/FM radio broadcast receiver in your car, you've probably gone too far back. Although it might not come to mind when we think about radio in the digital media era, things like GPS, wireless computer networks, and even our mobile phones use radio waves.  Far from being outdated, this century-old technology is still integral to much of what we do. "On the one hand, it's very ambient. We don't notice it," says Rick Prelinger, an archivist and professor emerit of film and digital media at the University of California, Santa Cruz. "But radio is also deeply engaged with the world." "
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