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At the same time, the upper tegula's raised side borders taper inward to nestle between the side borders of the tegula below. Each curved imbrex (b) covers the joints formed between the side ridges of adjacent tegulae. Some imbrices are not shown in order to reveal the details of the tegular joints.
In 2011, Armstrong's net sales were $2.86 billion, with operating income of $239.2 million. [17] Armstrong Cabinets was sold by Armstrong World Industries to American Industrial Partners on October 31, 2012. Armstrong spun off its flooring business into a new company, Armstrong Flooring (NYSE: AFI) on April 1, 2016.
The Armstrong oscillator [1] (also known as the Meissner oscillator [2]) is an electronic oscillator circuit which uses an inductor and capacitor to generate an oscillation. The Meissner patent from 1913 describes a device for generating electrical vibrations, a radio transmitter used for on–off keying .
Optima Lake was built to be a reservoir in Texas County, Oklahoma.The site is just north of Hardesty and east of Guymon in the Oklahoma Panhandle. [2]The earthen Optima Lake Dam (National ID # OK20510) was completed in 1978 (47 years ago) () by the United States Army Corps of Engineers, with a height of 120 feet (37 m), and a length at its crest of 16,875 feet (5,144 m). [3]
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First produced in 1962, the Agfa Optima 1a or Agfamatic was one of the first fully automatic scale-focusing 35mm film cameras. The successor to German camera manufacturer Agfa's Optima 1 camera, the camera employed a selenium cell that generated a voltage related to the luminance , to both measure the light level and to provide the power ...