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He used linseed oil as the thermometric fluid. [6] 1701 — Ole Christensen Rømer made one of the first practical thermometers. As a temperature indicator it used red wine. (Rømer scale), The temperature scale used for his thermometer had 0 representing the temperature of a salt and ice mixture (at about 259 s).
The Boyce MotoMeter was a simple and innovative device. For the first time, drivers had information about the engine temperature while operating the car. Sometimes, however, it failed to warn drivers about engine overheating in time to prevent damage. Motometers were at first aftermarket devices. Later, vehicle builders (not only car ...
Such thermometers are usually calibrated so that one can read the temperature simply by observing the level of the fluid in the thermometer. Another type of thermometer that is not really used much in practice, but is important from a theoretical standpoint, is the gas thermometer. Other important devices for measuring temperature include:
Aug. 11, 1999: Red Hat hits the stock market with the eighth-largest first day gain in Wall Street history, its share price leaping from $14 to $52. It ended its first day of trading worth $3.5 ...
Red Hat Czech s.r.o. is a research and development arm of Red Hat, based in Brno, Czech Republic. [97] The subsidiary was formed in 2006 and has 1,180 employees (2019). [98] Red Hat chose to enter the Czech Republic in 2006 over other locations due to the country's embrace of open-source. [99]
A thermometer has two important elements: (1) a temperature sensor (e.g. the bulb of a mercury-in-glass thermometer or the pyrometric sensor in an infrared thermometer) in which some change occurs with a change in temperature; and (2) some means of converting this change into a numerical value (e.g. the visible scale that is marked on a mercury ...
Motor oil is used for the lubrication, cooling, and cleaning of internal combustion engines. Motor oil may be composed of only a lubricant base stock in the case of mostly obsolete non-detergent oil, or a lubricant base stock plus additives to improve the oil's detergency, extreme pressure performance, and ability to inhibit corrosion of engine ...
In this definition, for the sake of conceptual rigour, the quantity of energy transferred as heat is not specified directly in terms of the non-adiabatic process. It is defined through knowledge of precisely two variables, the change of internal energy and the amount of adiabatic work done, for the combined process of change from the reference ...