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Standard refractometers measure the extent of light refraction (as part of a refractive index) of transparent substances in either a liquid this is then used in order to identify a liquid sample, analyze the sample's purity, and determine the amount or concentration of dissolved substances within the sample.
Avatar: The Way of Water is a 2022 epic science fiction film co-produced, co-edited, and directed by James Cameron, who co-wrote the screenplay with Rick Jaffa and Amanda Silver from a story the trio wrote with Josh Friedman and Shane Salerno.
Basic time-of-flight principles applied to laser range-finding. Time of flight (ToF) is the measurement of the time taken by an object, particle or wave (be it acoustic, electromagnetic, etc.) to travel a distance through a medium.
The Covenant of Water is a 2023 novel by physician and author Abraham Verghese. The book tells the story of a Malayali family living in southwest India, in the Kerala state, with the narrative spanning three generations, from 1900 to 1977. In each generation, some members of the family die by drowning because of an affliction they refer to as ...
A simple means of estimating renal function is to measure pH, blood urea nitrogen, creatinine, and basic electrolytes (including sodium, potassium, chloride, and bicarbonate). As the kidney is the most important organ in controlling these values, any derangement in these values could suggest renal impairment.
Measurement the intrinsic flicker performance of lighting equipment when supplied with a stable mains voltage; Testing the immunity of lighting equipment against voltage fluctuation disturbances on the AC mains; Testing the effect of light regulation of lighting equipment or the effect of an external dimmer (dimmer compatibility).
Some measurements of water quality are most accurately made on-site, because water exists in equilibrium with its surroundings. Measurements commonly made on-site and in direct contact with the water source in question include temperature , pH , dissolved oxygen , conductivity , oxygen reduction potential (ORP) , turbidity , and Secchi disk depth.
The basic unit of area was the tir-cumaile, "land of three cows", as it was an area of land that was at some point worth three cows.It is sometimes erroneously interpreted as the area needed to graze three cows, but it is far too large for that; in modern Ireland, a cow grazes on about 0.4 ha, so twenty or more could graze a tir-cumaile.
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