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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).
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:
Vacuum Oil Company was an American oil company known [according to whom?] for their Gargoyle 600-W steam cylinder motor oil. [citation needed] After being taken over by the original Standard Oil Company and then becoming independent again, in 1931 Vacuum Oil merged with the Standard Oil Company of New York to form Socony-Vacuum, later renamed to Mobil and eventually merging with Standard Oil ...
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, engine oil, or engine lubricant is any one of various substances used for the lubrication of internal combustion engines. They typically consist of base oils enhanced with various additives, particularly antiwear additives , detergents, dispersants , and, for multi-grade oils, viscosity index improvers .
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]
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Dodge saw the potential in offering a convenient way for automobile owners to fill their cars with gasoline. He built off-street filling stations with underground tanks for the gasoline and electric pumps to dispense it. Wadham's was purchased by Vacuum Oil Company in 1930. Vacuum Oil was then acquired by Socony, which later became Mobil.