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There are records before the 17th century indicating that air enclosed in a container would expand or contract with temperature and push water in a tube to different levels. These were not thermometers as much as curiosities. It needed to be understood that there existed a quantitative measure of this phenomena that was a reproducible response to hot and cold and that temperature could be a number.
It is in the early 1600s that records appear of such quantitative scientific investigations. Galileo was one of these investigators. It occurred to several people at this time to put markings on a tube where water level changed when heated or cooled. It took another 50 years for this to evolve into a sealed tube with a bulb and become reliable as a scientific instrument. As scientific developments go, this was quite rapid, indicating the importance of being able to communicate as result at a certain temperature to someone with a different temperature measuring instrument in a different country.
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What is the sSensor in Mercury-in-glass thermometer?
The sensor in a mercury-in-glass thermometer is the glass bulb at the base of the thermometer containing the mercury. The temperature is measured by the expansion or contraction of the mercury based on the surrounding temperature, allowing the thermometer to provide a temperature reading.
Who invented Mercury-in-glass thermometer?
German physicist Daniel gabriel Fahrenheit invented the mercury-in-glass thermometer
Why does a thermometer break when its put into the freezer?
When a thermometer is put into the freezer, the sudden change in temperature causes the glass to contract rapidly, which can lead to the glass cracking or shattering. Glass is not very flexible, and extreme temperature changes can cause it to break.
Is the external bulb of a thermometer also made of mercury?
No, the external bulb of a thermometer is typically made of glass to hold the mercury inside. Mercury is usually contained within the glass bulb to measure temperature accurately without exposing the user to the toxic substance.
What are the materials used for a Galileo thermometer?
A Galileo thermometer is a thermometer made of a sealed glass cylinder containing a clear liquid and a series of objects whose densities are such that they rise or fall as the temperature changes.
Which device has a liquid in glass components?
thermometer
What is a glass bulb of a thermometer?
A glass bulb of a thermometer is the part at the bottom of the thermometer that contains mercury or colored alcohol that expands and contracts with temperature changes. This expansion and contraction of the liquid is what causes the thermometer to measure and display the temperature.
What is liquid-in-glass thermometer?
A liquid-in-glass thermometer is a type of thermometer that consists of a glass tube filled with a liquid, typically mercury or alcohol, which expands or contracts with changes in temperature. The level of the liquid in the tube corresponds to the temperature, allowing for temperature measurement.
Who element used of the glass tube of clinical thermometer to measure thermometer?
mercury
What is the sSensor in Mercury-in-glass thermometer?
The sensor in a mercury-in-glass thermometer is the glass bulb at the base of the thermometer containing the mercury. The temperature is measured by the expansion or contraction of the mercury based on the surrounding temperature, allowing the thermometer to provide a temperature reading.
Why is the glass on the bulb of a clinical thermometer so thin?
The glass on the bulb of a clinical thermometer is thin to allow for rapid heat transfer between the body and the thermometer. This ensures that the thermometer can quickly and accurately measure the body's temperature. Additionally, thin glass reduces the risk of the thermometer causing discomfort when inserted into the mouth or underarm.
Who invented Mercury-in-glass thermometer?
German physicist Daniel gabriel Fahrenheit invented the mercury-in-glass thermometer
How do you clean a glass thermometer?
You can clean a glass thermometer by washing it with warm, soapy water and rinsing it thoroughly. Ensure that the thermometer is completely dry before storing it. Avoid using harsh chemicals or abrasive materials to clean the thermometer.
What are the materials in a thermometer?
For a classic thermometer: glass and mercury, colored ethanol or another liquid.
Why is the stem of a thermometer designed as a magnifying glass?
The stem of a thermometer is not designed as a magnifying glass. The stem of a thermometer is typically narrow to allow for more accurate temperature readings, as it reduces the amount of time it takes for the reading to stabilize. The magnifying glass may be used for easier reading of the temperature scale on the thermometer.
What is a laboratory thermometer?
A laboratory thermometer is used to check the temperature, or changes in temperature, of an object with precise accuracy.
Why is a thermometer glass so thin?
Thermometer glass is thin to allow for a quicker response time to changes in temperature. Thinner glass ensures that the heat transfer from the substance being measured to the thermometer fluid is more efficient, resulting in a more accurate reading.
