Table of Contents
How does a Galileo work?
Galileo thermometers work on the principle of buoyancy, which determines whether objects float or sink. As the temperature changes, the glass balls will either sink to the bottom (temperature rises), or float to the top (temperature falls).
How does a thermometer work?
How does a thermometer tell the temperature? A thermometer measures temperature through a glass tube sealed with mercury that expands or contracts as the temperature rises or falls. As temperatures rise, the mercury-filled bulb expands into the capillary tube. Its rate of expansion is calibrated on the glass scale.
What is the basic principle of a thermometer?
These liquid thermometers are based on the principal of thermal expansion. When a substance gets hotter, it expands to a greater volume. Nearly all substances exhibit this behavior of thermal expansion. It is the basis of the design and operation of thermometers.
What kind of device is a thermoscope?
Thermoscope. A thermoscope is a device that shows changes in temperature. A typical design is a tube in which a liquid rises and falls as the temperature changes. The modern thermometer gradually evolved from it with the addition of a scale in the early 17th century and standardisation through the 17th and 18th centuries.
How does a thermoscope show changes in temperature?
A thermoscope is a device that shows changes in temperature. A typical design is a tube in which a liquid rises and falls as the temperature changes.
Who was the first person to use the thermoscope?
In the early 17th century, Galileo sought to determine air temperature. Thus, he developed the thermoscope. This device soon evolved throughout the century by people like Santorio Santorio and Gianfrancesco Sagredo. The thermoscope was the basis for the modern thermometer. Become a Study.com member to unlock this answer!
What was the purpose of the Galileo thermoscope?
Galileo thermoscope. A thermoscope is a device that shows changes in temperature. A typical design is a tube in which a liquid rises and falls as the temperature changes.