The tonograph (Italian: tonografo) is a device invented by Italian scientist Luca de Samuele Cagnazzi (1764-1852) and presented at the Terza riunione...

litanies. In 1841, Italian scientist Luca de Samuele Cagnazzi introduced the tonograph, a device invented by him and capable of measuring the inflections and...

valuable books and archeological finds, such as the cofanetto limosino, the tonograph and both ancient and modern art paintings. It also stores some bone fragments...

political economist. He also wrote a book about pedagogy and invented the tonograph. Luca de Samuele Cagnazzi was born in Altamura in the night between the...

– archdeacon, mathematician, political economist and inventor of the tonograph John Cantius (1390–1473) – priest and Buridanist mathematical physicist...