Hang your Galileo thermometer indoors and from a hook. For the most accurate results, its best to not hang the thermometer in direct sunlight. Allow a few minutes for the floating spheres within the thermometer tube to rise and fall according to the current temperature.
Is a Galileo thermometer accurate?
Based on a thermoscope invented by Galileo Galilei in the early 1600s, the thermometer on your co-workers desk is called a Galileo thermometer. A simple, fairly accurate thermometer, today it is mostly used as decoration.
Can you use a Galileo thermometer outside?
Finally, while the device can be used outside, it will work best indoors. The physics on which these instruments are based on works best within a specific temperature range—most thermometers will only have medallions for temperatures between 64 and 80-degrees Fahrenheit.
Where is the liquid-in-glass thermometer used?
The Liquid-in-Glass Thermometer is a type of a thermometer used to measure temperature. The thermal expansion of the liquid is the principle used to measure the temperature in the thermometer. When the temperature increases, the liquid expands and then rises in the capillary tube in the thermometer.
What is the working principle of liquid glass thermometer?
Liquid-in-glass thermometers are based on the principle of thermal expansion of substances. A liquid in a glass tube (called a capillary) expands when heated and contracts when cooled. A calibrated scale can then be used to read off the respective temperature that led to the corresponding thermal expansion.
What liquid is used in thermometer?
mercury thermometer In a mercury thermometer, a glass tube is filled with mercury and a standard temperature scale is marked on the tube. With changes in temperature, the mercury expands and contracts, and the temperature can be read from the scale. Mercury thermometers can be used to determine body, liquid, and vapor temperature.
What is the liquid inside a glass thermometer?
Mercury Mercury, the liquid in the thermometer, is enclosed in a sealed glass bulb that expands into a fine bore present in the stem of the thermometer.