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The article states that the TOA EM-202 was the world's first transistorised microphone, but the current history pages on the TOA website (possibly changed since the article was written as the reference link no longer works properly) suggest that, while it was the first electric megaphone produced, the company did not produce a transistorised ...
A megaphone, speaking trumpet, bullhorn, blowhorn, or loudhailer is usually a portable or hand-held, cone-shaped acoustic horn used to amplify a person's voice or other sounds and direct it in a given direction. The sound is introduced into the narrow end of the megaphone, by holding it up to the face and speaking into it, and the sound waves ...
Richard Frankland (with megaphone) at the Thousand Warrior march passing Occupy Melbourne in Treasury Gardens, 5 November 2011. Richard Joseph Frankland is an Australian playwright, scriptwriter and musician. He is an Aboriginal Australian of Gunditjmara origin from Victoria. He has worked significantly for Aboriginal Australian causes.
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Steve Parker uses sculpture, sound, and performance to create communal, democratic works that examine history and behavior. [5] Futurist Listening, at the CUE Art Foundation curated by Marcela Guerrero, featured sonic headwear, acoustic sculptures built from brass instruments, and graphic scores that utilized World War II tactics like jamming signals, coded messages, and warning sirens ...
I am an atheist". As Sahelanthropus led the march, he roared chants through a megaphone, including "Uga uga uga chuga" and "free bananas for primates of all beliefs". [21] The march ended at St Paul's Cathedral, where Hilton gave a speech. [21] Dean of the Cathedral Trevor James engaged Hilton in the cathedral foyer.
The cave has scheduled tours about once per hour, conducted in Mandarin Chinese, usually with a megaphone irrespective of group size, explaining in detail the origins of various formation names, such as a dragon eating a bear, or a bear catching a tiger. The tour cannot easily be walked independently of groups, since the lights inside the cave ...
Megaphone and megaphone acetate molecules are chiral and the reported extraction and synthesis procedures yielded their racemic mixtures. [4] Megaphone acetate was also isolated from the root of Endlicheria dysodantha, another plant of Laurel family, using chromatography of ethanolic solution. It showed inhibitory activity against cells of ...