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  2. Laurens Hammond - Wikipedia

    en.wikipedia.org/wiki/Laurens_Hammond

    The company's assistant treasurer, W. L. Lahey, was the organist at the nearby St. Christopher's Episcopal Church, and Hammond consulted him concerning the quality of the new instrument's sound. Thanks to Hammond's prior manufacturing and engineering experience, the tonewheel generator was extremely well-engineered by the time the "Hammond ...

  3. Willis Whitfield - Wikipedia

    en.wikipedia.org/wiki/Willis_Whitfield

    Willis Whitfield (December 6, 1919 – November 12, 2012 [1] [2]) was an American physicist and inventor of the modern cleanroom, a room with a low level of pollutants used in manufacturing or scientific research. His invention earned him the nickname, "Mr. Clean," from Time Magazine. [3] [4]

  4. Cleanroom - Wikipedia

    en.wikipedia.org/wiki/Cleanroom

    A cleanroom or clean room is an engineered space that maintains a very low concentration of airborne particulates. It is well isolated, well controlled from contamination , and actively cleansed. Such rooms are commonly needed for scientific research and in industrial production for all nanoscale processes, such as semiconductor manufacturing.

  5. List of national instruments (music) - Wikipedia

    en.wikipedia.org/wiki/List_of_national...

    The following are specifically referenced above or are book-length or extended scholarly works documenting a specific national instrument, not including collections of songs. African American: Conway, Cecelia (1995). African Banjo Echoes in Appalachia : A Study of Folk Traditions (1st ed.). Knoxville: University of Tennessee Press.

  6. Calliope (music) - Wikipedia

    en.wikipedia.org/wiki/Calliope_(music)

    Calliope on the Minne-Ha-Ha, a stern-wheeler on Lake George, New York Kitch Greenhouse Steam Calliope at the Ohio Historical Society – July 2006 Fairground calliope trailer being hauled by a U.S.-built traction engine – New Orleans Mardi Gras 2007 Steam calliope (c. 1901) built by George Kratz and used on the showboat French's New Sensation at The Mariners' Museum

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  8. Music of Texas - Wikipedia

    en.wikipedia.org/wiki/Music_of_Texas

    Texas in the United States. The U.S. state of Texas has long been a center for musical innovation and is the birthplace of many notable musicians. Texans have pioneered developments in Tejano and Conjunto music, Rock 'n Roll, Western swing, jazz, Piano, punk rock, country, hip-hop, electronic music, gothic industrial music, religious music, mariachi, psychedelic rock, zydeco and the blues.

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