Tonograph: History and Key Facts
The tonograph (Italian: tonografo) is a device invented by Italian scientist Luca de Samuele Cagnazzi (1764-1852) and presented at the Terza riunione degli scienziati italiani (the "Third Meeting
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The tonograph (Italian: tonografo) is a device invented by Italian scientist Luca de Samuele Cagnazzi (1764-1852) and presented at the Terza riunione degli scienziati italiani (the "Third Meeting