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Bats jamming bats: Food competition through sonar interference
Interesting article at Science Mag on a special call Bats do for interfere in their own sonars: Communication signals are susceptible to interference (“jamming”) from conspecifics and other sources. Many active sensing animals, including bats and electric fish, alter the frequency of their emissions to avoid…
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Montreal Subway Soundwalk
Interesting soundwalk by Dan Tapper at North American Sound Diaries Sherbrooke to Jean-Drapeau station, Montreal – Quebec My second post for North American Sound Diaries week is a soundwalk recorded in Montreal, travelling on the subway between Sherbrooke and Jean-Drapeau stations. The recording begins with my…
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The Mystery of a Singing Comet
Rosetta’s Plasma Consortium (RPC) has uncovered a mysterious ‘song’ that Comet 67P/Churyumov-Gerasimenko is singing into space. The comet seems to be emitting a ‘song’ in the form of oscillations in the magnetic field in the comet’s environment. It is being sung at 40-50 millihertz, far…


![framework:ephemera – [martin clarke]](https://sonicfield.org/wp-content/uploads/2014/11/487-125x125.jpg)
