Galileo's Thermometer' or 'Termometro Infingardo', 1989-1999

Thermometer consisting of a number of glass balls weighted to be of different densities, in a liquid, arranged to sink one after the other as the temperature rises, known as a 'termometro infingardo' or (incorrectly) as 'Galileo's thermometer', made by Ad-Glass, Stillwater, Oklahoma 14075, 1989-99.

Galileo and his Thermometer : Proslogion

EASY READ 23 Tall Galileo Thermometer – ZoCo LLC

Heat Science Museum Group Collection

Galileo's Thermometer Fahrenheit, 13.5 - Arbor Scientific

Heat Science Museum Group Collection

Galileo's Thermometer' or 'Termometro Infingardo', 1989-1999

Thermometers with colorful spheres which rise and fall to indicate temperature

H-B Instrument™ Durac™ Galileo Thermometers

SP Bel-Art, H-B DURAC Galileo Thermometer; 18 to 26C (64 to 80F), 5 Spheres, 11 in. (B62000-0800) : Patio, Lawn & Garden

Galileo thermometer Autodesk Community Gallery

Galileo's Thermometer, Physics & Astronomy

EASY READ 23 Tall Galileo Thermometer – ZoCo LLC

T.F.A. Galileo Liquid Thermometer. Made in Germany (75) #905

Glassic Gifts® Galileo Thermometer (13 Tall) : Outdoor Thermometers : Patio, Lawn & Garden

Galileo Thermometer –