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Liquid thermometers often include both Celsius and Fahrenheit temperature scales, which are displayed on either side of the tube. A thermometer has two important elements: 1 a temperature sensor e. Virtual Boots Macmillan Information Pharmacist. Optical Engineering. Reproducible temperature measurement means that comparisons are valid in scientific experiments and industrial processes are consistent. Bibcode : InPhT.. Authority control databases. Out of stock. Math is Fun: Interactive Thermometer. A - Z health conditions. Text on this page is printable and can be used according to our Terms of Service. Bibcode : OExpr..

For high temperature work it may only be possible to measure to the nearest 10 °C or more. See also: List of temperature sensors. Silicon Labs. Also, they are often much more sensitive than primary ones. They cannot be used to measure temperatures above this point. For broader coverage of this topic, see Temperature measurement.

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Health hub health hub health hub visit health hub A - Z health conditions A - Z health conditions visit a - z health conditions. Astronomers use infrared thermometers to measure temperatures in space, for instance. Toggle limited content width. Mercury thermometers cannot measure temperatures below this point. Singapore Medical Journal. Lab coat Face shield Respirator Rubber apron Safety shower. Article Talk. Media Credits The audio, illustrations, photos, and videos are credited beneath the media asset, except for promotional images, which generally link to another page that contains the media credit. A thermometer calibrated to a known fixed point is accurate i. Treatise on Thermodynamics , translated by A.

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• The Kelvin scale is used by physicists and other scientists who need to thermometer very precise temperatures.
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Geography, Physical Geography. A thermometer is an instrument that measures temperature. It can measure the temperature of a solid such as food , a liquid such as water, or a gas such as air. The three most common units of measurement for temperature are Celsius, Fahrenheit, and kelvin. The Celsius scale is part of the metric system. The metric system of measurement also includes units of mass , such as kilograms, and units of length, such as kilometers. The metric system, including Celsius, is the official system of measurement for almost all countries in the world. Most scientific fields measure temperature using the Celsius scale. Zero degrees Celsius is the freezing point of water, and degrees Celsius is the boiling point of water. Three nations do not use the Celsius scale. However, even in these countries, scientists use the Celsius or kelvin scale to measure temperature. Water freezes at 32 degrees Fahrenheit and boils at degrees Fahrenheit. The Kelvin scale is used by physicists and other scientists who need to record very precise temperatures. The kelvin scale is the only unit of measurement to include the temperature for " absolute zero ," the total absence of any heat energy. This makes the kelvin scale essential to scientists who calculate the temperature of objects in the cold reaches of outer space. Water freezes at kelvins, and boils at kelvins. We do not read outdoor temperatures in the kelvin scale because it uses such large numbers—a degree Fahrenheit day would be read as kelvins!

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A thermometer is a device that measures temperature the degree of hotness or coldness of an object or temperature gradient the rates of change of temperature in space, thermometer. A thermometer has two important elements: 1 a temperature sensor thermometer. Thermometers are widely used in technology and industry to monitor processes, in meteorologythermometer, thermometer medicine medical thermometerand in scientific research. While an individual thermometer is able to measure degrees of hotness, the readings on two thermometers cannot be compared unless they conform to an agreed scale. Today pampers active baby dry giant pack is an absolute thermodynamic temperature scale. Internationally agreed temperature scales are designed to approximate this closely, based on fixed points and interpolating thermometers. The most recent official temperature scale is the International Temperature Scale of It extends from 0, thermometer. Sparse and conflicting historical records make it difficult to pinpoint the invention of the thermometer to any single person thermometer date with certitude, thermometer. In addition, thermometer, given the many parallel developments in the thermometer's history and its many gradual improvements over time, the instrument is best viewed not as a single invention, but an evolving technology, thermometer.

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Temperatures in kelvins are never read as degrees kelvin or thermometer degrees.