Person

The silk manufacturer Johann Heinrich Scheibler invented a method to tune keyboards with unprecedented accuracy, applying principles that he had developed in his textile factory. His technique involved a set of tuning forks called a tonometer, a chronometer, and the counting of beats. It aimed to deskill tuning so that anyone could achieve precise tuning regardless of their musical ear. He explained his invention in Der physikalische und musikalische Tonmesser of 1834.

1777
1837
Video
2012. “Introduction To Resonance With Artifacts From The National Museum Of American History”. Smithsonian National Museum of American History. https://www.youtube.com/watch?v=Rn93ure-Fa8.
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.
Person

Hermann Ludwig Ferdinand Helmholtz, later von Helmholtz, was born in Potsdam in 1821, the son of Caroline Penne and high school principal August Ferdinand Julius Helmholtz. He became interested in natural science at a young age, but followed his father’s wishes and studied medicine at the Berlin military academy. He graduated in 1842.

1821
1894