Liquid in glass thermometers are fragile.
For precise work, they need to be recalibrated frequently.
The glass is neither half full nor is it half empty. It is twice the size that it needs to be.
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Henry Bessemer developed a way to make steel by melting and burning pig iron. Pig iron is the result of mining and refining iron ore. Before steel, he worked with glass, but his glass making process was not practical.
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A so-called "glass" thermometer has a small bore-hole in the center of the glass that has some liquid in it. It's the activity of the liquid in the narrow hole that makes the thermometer a thermometer.
Such thermometers are based on the fact that the liquid expands when the temperature increases. That's what the thermometers measure.
James F. Swindells has written: 'Calibration of liquid-in-glass thermometers' -- subject(s): Thermometers and thermometry, Thermometers, Calibration
They are made out of glass which is a metastable solid.
Celsius and Fahrenheit Thermometers Clinical Thermometers Ear (Tympanic) thermometers Pacifier Thermometers Underarm or Oral Thermometers Food Thermometers Outdoor Thermometers Mechanism of Different Types of Thermometers Mercury and Alcohol Thermometers Digital Thermometers Alcohol thermometer Beckmann differential thermometer Bi-metal mechanical thermometer Electrical resistance thermometer Galileo thermometer Infrared thermometer Liquid Crystal Thermometer Medical thermometer (e.g. oral thermometer, rectal thermometer, basal thermometer) Mercury-in-glass thermometer
if you mean what are the two most commonly found liquids in a liquid-and-glass thermometer then the answer is mercury and alcohol :) hope this helps
a temperature-measurement device whose operation is based on the thermal expansion of a liquid. Liquid-filled thermometers provide a direct reading of the temperature.
it is mercury. its actually a liquid at room temperature.
Clinical thermometers are specifically designed for measuring human body temperature, while other mercury-in-glass thermometers can be used for various purposes such as measuring temperature in laboratories or industrial settings. Clinical thermometers typically have a narrower temperature range focused on human body temperature, while other thermometers may have a wider temperature range. Additionally, clinical thermometers are often designed with features like an easy-to-read scale and a flexible tip for comfort and safety during use.
1. has a high boiling point 2. good conductor of heat 3. does not wet glass does not vaporize easily 4. has a wide temperature range
a liquid thermometer is made with a glass "shell" and ussually have murcur inside them that dilates when it gets hotter and rises and contracts when its colder and lowers- this has been made by a 12 year old boy
Mercury thermometers are rarely used, except in lab thermometers. For human use, they have been replaced by dyed alcohol glass thermometers, or electronic digital thermometers.