Person

Adriaan Daniël Fokker was a prominent Dutch theoretical physicist. He is known in theoretical physics for the Fokker-Planck equation and his work on the theory of relativity. In the years around 1930, however, Fokker also became interested in room acoustics and the tuning of musical instruments. He designed several sound reflectors, which amplify the sound reaching the audience, especially in churches, but his work on musical instrument tuning is what made him more widely known.

1887
1972
Person

Cornelis Zwikker was a Dutch physicist and one of the initiators of the Dutch Sound Foundation. After studying chemistry, mathematics, and physics in Amsterdam, he worked with Philips in Eindhoven until 1929, when he was appointed professor of theoretical and applied physics at the Delft University of Technology. Zwikker was responsible for the acoustic design of many buildings, among them the studios of the Dutch broadcasting organization AVRO.

 

Source:

1900
1985
Person

Jules Antoine Lissajous was a high-school teacher, then held prestigious administrative posts in the education system of various parts of France. He had trained in physics, and defended his dissertation on vibratory phenomena in 1850.

1822
1880
Video
Company, Kay. n.d. Kay Sona-Graph (Video).
Video
Braguinski, Nikita. 2018. Brüel & Kjær 2304 Level Recorder (Video).
Video
Turner, Steven. 2012. “Introduction To Wave Models From The National Museum Of American History”. Smithsonian National Museum of American History. https://www.youtube.com/watch?v=5Qm8WQgDlSg.
Video
Turner, Steven. 2012. “Introduction To Tuning Forks From The National Museum Of American History”. Smithsonian National Museum of American History. https://youtu.be/arP0Jq35dws.
Video
2012. “Demonstration Acoustic Siren”. Smithsonian National Museum of American History. https://www.youtube.com/watch?v=Rs7CC4pdJeM.
Video
Chladni, Ernst Florens Friedrich. 2012. “Chladni Plate Demonstration From The National Museum Of American History”. Smithsonian National Museum of American History. https://youtu.be/KEttRmu2kGk.
Video
Fondazione Scienza e Tecnica,. (17 August 2015AD) 2015. “Manometric Capsule, Resonance, Koenig Sound Analyzer”. Florence, Italy: Fondazione Scienza e Tecnica. https://www.youtube.com/watch?v=OHdL-65dkkY.