Tag Archives: ear trumpet

Measure of the heart: Santorio Santorio and the Pulsilogium

Richard de Grijs Daniel Vuillermin Beijing, China   Pulsilogium (center; line with a weight tied to a finger alongside a ruler) and thermoscope (right). (Sanctorius, S., 1626, Commentaria in primamFen primi libri CanonisAvicennae, Venice: Sarcina, p. 22. Woodcut and text; Credit: Wellcome Library, London) The heart is a musical organ. The irregularity of one’s inhalation and […]