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Mercury-in-glass thermometer for measurement of room temperature. The mercury-in-glass or mercury thermometer is a thermometer that uses the thermal expansion and contraction of liquid mercury to indicate the temperature.
18 Dis 2023 · 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.
The three fundamental components of a thermometer are a spirit or mercury-filled liquid that reacts to temperature changes, a glass tube to hold the liquid, and black ink to fill in the engraved scale marks with legible numbers. A sensitive thermometer is required to measure temperature.
30 Mei 2015 · Daniel Fahrenheit built several types of thermometers, but his Stuff of Genius wasn't restricted to a few temperature measuring devices. Tune in and learn how Daniel Fahrenheit invented the...
A basic mercury thermometer is a precisely crafted piece of tube-shaped glass enveloping a mercury-filled reservoir connected to an extremely thin channel, called the capillary bore, that provides a chamber the mercury from the reservoir can expand into.
17 Jun 2024 · With the growing awareness of mercury exposure hazards, the shift towards mercury free thermometers in settings like homes, hospitals, and laboratories is becoming more prominent. These safer alternatives offer reliable and accurate temperature measurement while eliminating the risk of mercury exposure.
19 Okt 2023 · The main reason mercury is used in thermometers is because it has a higher coefficient of expansion than water. This means that changes in its volume with temperature are more noticeable. Additionally, mercury has a boiling point of 356.7 degrees Celsius, which is much higher than alcohol’s boiling point of 78.37 degrees Celsius.
11 Jan 2023 · Once a staple in most medicine cabinets, mercury thermometers use mercury encased in glass to measure body temperature. Mercury thermometers are no longer recommended because they can break and allow mercury — which is toxic — to escape.
Mercury-in-glass thermometers generally have one of three different tips: Slim (oral or axillary) tip, the short-rounded tip (also known as stubby), and the pear-shaped (rectal) tip 1 ( Fig. 22-1 ). View chapter Explore book. Thermoregulation: From Basic Neuroscience to Clinical Neurology, Part II.
5 Okt 2021 · Why Mercury is a Great Thermometer Filling. Mercury is an ideal thermometer filling for 5 reasons: 1. Mercury is a liquid from -39 ºC to 357 ºC. Few materials can be liquid in a similar range–and mercury is the only pure metal that is liquid at room temperature.
