Video
2012. “Demonstration Acoustic Siren”. Smithsonian National Museum of American History. https://www.youtube.com/watch?v=Rs7CC4pdJeM.
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

A scientist, inventor, engineer, and innovator who is credited with patenting the first practical telephone.

 

Picture: CC0 | Wikimedia

1847
1922
Person

Alexander John Ellis was born Alexander John Sharpe on June 14, 1814, in Hoxton, Middlesex, and died in London on October 28, 1890. He studied mathematics and philology at Trinity College Cambridge, earning his bachelor’s degree in 1837. Ellis later became a phonetician, whose work in vocal and musical pitch, speech, and song also influenced the field of musicology. Among his most important contributions were the annotated translation of Hermann von Helmholtz’s On the Sensations of Tone and his development of the notion of cent for musical intervals.

 

1814
1890
Person

Picture: CC0 | Wikimedia

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-322
Person

Picture: CC0 | Wikimedia

1863
1923
Video
“Audio Preservationist Carl Haber, 2013 Macarthur Fellow | Macarthur Foundation”. 2013.
Video
University of Michigan,. (13 October 2010AD) 2010. “Bowed Violin In Slow Motion”. Houghton, Michigan: Michigan Technological University. https://www.youtube.com/watch?v=FO5bq6x_Tws.
Video
Braguinski, Nikita. 2018. Brüel & Kjær 2304 Level Recorder (Video).
Person

Carl Emil Seashore was born Carl Emil Sjöstrand on January 28, 1866, in Mörlunda, Sweden, and died on October 16, 1949, in Lewiston, Idaho.

1866
1949