South African Radio App For Pc
Magali Swinderman
Using the South African Radio Astronomy Observatory's (SARAO) MeerKAT telescope, located in the southwest Karoo region of the country, researchers detected the radio waves from IC 4296, along with other unique cosmic features that may reveal new clues about large radio galaxies, according to a statement from the SARAO.
Recent observations of IC 4296 revealed that the radio jets become unstable as they travel beyond the outer reaches of the galaxy, allowing some of the charged electrons to escape into intergalactic space. These stray electrons create several faint radio "threads," which appear below the galaxy in the new image.
"Only MeerKAT's unique combination of sensitivity, angular resolution and dynamic range allowed the discovery of these threads, ribbons and rings," Jim Condon, lead author of the study from the U.S. National Radio Astronomy Observatory, said in the statement.
The South African MeerKAT radio telescope, which saw first light in 2018, is a precursor to Square Kilometre Array (SKA), which aims to answer fundamental astrophysical questions about the nature of objects in the universe with dishes scattered across South Africa and Australia.
Samantha Mathewson joined Space.com as an intern in the summer of 2016. She received a B.A. in Journalism and Environmental Science at the University of New Haven, in Connecticut. Previously, her work has been published in Nature World News. When not writing or reading about science, Samantha enjoys traveling to new places and taking photos! You can follow her on Twitter @Sam_Ashley13. "}), " -0-9/js/authorBio.js"); } else console.error('%c FTE ','background: #9306F9; color: #ffffff','no lazy slice hydration function available'); Samantha MathewsonSocial Links NavigationContributing WriterSamantha Mathewson joined Space.com as an intern in the summer of 2016. She received a B.A. in Journalism and Environmental Science at the University of New Haven, in Connecticut. Previously, her work has been published in Nature World News. When not writing or reading about science, Samantha enjoys traveling to new places and taking photos! You can follow her on Twitter @Sam_Ashley13.
Guerrilla Radios in Southern Africa is a collection of essays on the histories of the different radios of the liberation movements in the region during the era of the armed struggle.
From Angola and Mozambique, to Namibia, Zimbabwe and South Africa, the new technology of radio provided the liberation movements in exile with a platform to address their followers at home, to propagate their ideologies and to counter the propaganda of the oppressive white minority regimes. As the cheapest and most direct medium, guerrilla radios transcended the boundaries imposed by the settler regimes and were widely listened to, albeit within the realm of illegality.
Transnational in its approach, the book explores the workings of these radios from their areas of broadcast in exile, international solidarity, to reception at home where listeners often huddled around their receivers to listen to the messages from the liberation movements, often beyond the gaze of the state. These radios shaped the nature of resistance campaigns that the liberation movements embarked upon in the various countries in the region.
This collection of essays on the use of radio by southern African liberation movements offers new insights into the role of media in their independence struggles. With case studies from the Portuguese colonies of Mozambique and Angola and the white settler regimes of Rhodesia (Zimbabwe), Namibia, and South Africa, it offers a much-needed regional perspective with contributions from scholars of the region. Earlier studies have examined how colonial and settler states employed radio to shape Africans into docile subjects. This volume emphasizes African agency and shows how radio technology was subverted by exiled dissidents. Hampered by low literacy rates, poor roads, and the cost of print materials, they used radio to spread liberation messages, counter government propaganda, and galvanize popular support. Sources include sound recordings, interviews, and archival documents from government, political party, university, and museum collections. Unavoidably, the uneven maintenance and preservation of records have resulted in a volume that is skewed toward the settler states, which were better resourced and more concerned about local security. Liberation movements from these countries were also more successful in accessing outside funds, although they too reduced costs by recording over previous broadcasts. Highly recommended for scholars and academic libraries.
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