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The hydrometer sinks deeper in low-density liquids such as kerosene, gasoline, and alcohol, and less deep in high-density liquids such as brine, milk, and acids. It is usual for hydrometers to be used with dense liquids to have the mark 1.000 (for water) near the top of the stem, and those for use with lighter liquids to have 1.000 near the bottom.
The hydrometer is then removed, wiped dry, and placed in the liquid whose density is to be determined. A weight (x) sufficient to sink the hydrometer to the same marked point is placed in the pan. The density (D) of the second liquid is then given by D = (W + x) / (W + w). [1] The Fahrenheit hydrometer can be made of either glass or metal.
Hydrometry is the monitoring of the components of the hydrological cycle including rainfall, groundwater characteristics, as well as water quality and flow characteristics of surface waters. [1]
The Baumé scale is a pair of hydrometer scales developed by French pharmacist Antoine Baumé in 1768 to measure density of various liquids. The unit of the Baumé scale has been notated variously as degrees Baumé, B°, Bé° and simply Baumé (the accent is not always present). One scale measures the density of liquids heavier than water and ...
Windswept Adan is the seventh studio album by Japanese singer-songwriter Ichiko Aoba (pictured), released on 2 December 2020 by her label, Hermine.The concept album follows the story of a young girl who is sent away by her family to the fictional island of Adan.
The success of the device caused his name to be immortalised in an Act of Parliament: Sikes' Hydrometer Act 1816 (56 Geo. 3. c. 140). From 1816 until 1980 the hydrometer was the standard used in the UK to measure the alcohol proof of spirits, and from 1846 in Canadian law. [4]
Captain John Rodgers, Lieutenant Porter, and Dr. William Samuel Waithman Ruschenberger, all of the United States Navy did this as did Dr. Raymond, in the American steamer Golden Age, and Captain Henry Toynbee, (F.R.A.S., F.R.A.G.S) of the English East Indiaman Gloriana.
Another type of hydrometer is the electronic Oscillating Body hydrometer which determines the density of a small sample drawn into a glass tube mounted on an oscillating mechanism. The difference in frequency between the test sample and a reference sample of distilled water is a measure of the density of the sample, which is displayed digitally.