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The Sprengel pump is a vacuum pump that uses drops of mercury falling through a small-bore capillary tube to trap air from the system to be evacuated. [Note 1] It was invented by Hanover -born chemist Hermann Sprengel in 1865 while he was working in London. [3] The pump created the highest vacuum achievable at that time, less than 1 μPa ...
The Mercury Tracer is an automobile manufactured and marketed by Ford 's Mercury division for model years 1987 through 1999, over three generations in three- and five-door hatchback, four-door sedan, and five-door station wagon configurations. The first generation was marketed as a subcompact; the two succeeding generations were sold in the ...
The Mercury Sable is a range of automobiles manufactured and marketed by the Mercury brand of Ford Motor Company. Introduced on December 26, 1985, as the replacement for the Mercury Marquis, the Sable marked the transition of the mid-size Mercury product range to front-wheel drive. Over its production span, the Sable was Mercury's badge ...
The Mercury Grand Marquis is an automobile that was produced by Mercury from the 1975 until 2011 model years. Introduced as the flagship sub-model of the Mercury Marquis in 1975, the Grand Marquis became a stand-alone model line in 1983, serving as the largest Mercury sedan. The model line served as the sedan counterpart of the Mercury Colony ...
Mercury Cougar. The Mercury Cougar is a series of automobiles that was sold by Mercury from 1967 to 2002. The model line is a diverse series of vehicles; though the Cougar nameplate is most commonly associated with two-door coupes, at various stages in its production, the model also was offered as a convertible and a hatchback.
A closeup of a 175- W mercury vapor lamp. The small diagonal cylinder at the bottom of the arc tube is a resistor which supplies current to the starter electrode. A mercury-vapor lamp is a gas-discharge lamp that uses an electric arc through vaporized mercury to produce light. [ 1] The arc discharge is generally confined to a small fused quartz ...
The Mercury Comet is an automobile that was produced by Mercury from 1960–1969 and 1971–1977 — variously as either a compact or an intermediate car. In its first two years, it was marketed as the "Comet" and from 1962 as the "Mercury Comet". The compact Comet shared a naming convention associated with the ongoing Space Race of the early ...
Cara Tabachnick. Updated August 17, 2024 at 12:35 PM. A 13,600-year-old mastodon skull was uncovered in an Iowa creek, state officials announced this week. Iowa's Office of the State Archaeologist ...