Oral Thermometer, 1625
Earliest known illustration of an oral thermometer, drawn by its inventor, the Italian physician Sanctorius Sanctorius (1561-1636), in 1625. The thermometer was made of glass tubing and the vial at the bottom contained mercury. To get a reading, the patient had to stay in contact with the device for at least 20 minutes. Graduations on the tube gave quantitative measures of the patient's body temperature.
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Photo credit: © Science History Images / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: 1600s, 1625, 17th, art, artwork, century, device, diagram, earliest, engraving, enhanced, enhancement, glass, historic, historical, history, instrument, invention, italian, italy, measure, medical, mercury, oral, padua, patient, people, person, sanctorii, sanctorio, sanctorius, santorii, santorio, science, seventeeth, temperature, thermometer, tube, vial
