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In this plotting room, the table is a Whistler-Hearn plotting board. A range correction board is on the left rear of the table. A conceptual diagram of the flow of fire control data in the Coast Artillery (in 1940). The set forward point of the target was generated by using the plotting board (1).
The Sites Reservoir is a proposed offstream reservoir project west of Colusa in the Sacramento Valley of northern California to be built and operated by the Sites Project Authority. The project would divert water from the Sacramento River upstream of the Sacramento–San Joaquin River Delta through existing canals to a new reservoir 14 miles ...
Range table for US 3-inch (76.2 mm) field gun, models 1902-1905 [ edit ] This gun used a standard "fixed" cartridge with 15 lb (6.8 kg) shell, hence a single set of tables applied to all its ammunition.
Ronalds's fire finder comprised a theodolite atop a watchtower. Bearings and vertical angles from the horizon to surrounding features were recorded either on a surrounding cylinder in the form of a panorama or on a circular table at the base of the instrument. The location of any fire could thus be pinpointed even in the dark. [1]
H = depth of flow over the crest (or floor) of the inlet (ft) H e = specific energy head in reference to the crest of the inlet, or the head over the crest of the inlet (ft) v a = mean velocity of approach at which the depth H is measured (ft/s) g = 32.16 ft/s 2
A plot of sugarcane yield versus depth of water table in Australia. The critical depth is 0.6 m. [4] [5] Most crops need a water table at a minimum depth. [6] For some important food and fiber crops a classification was made [7] because at shallower depths the crop suffers a yield decline. [8]
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A water tower also serves as a reservoir to help with water needs during peak usage times. The water level in the tower typically falls during the peak usage hours of the day, and then a pump fills it back up during the night. This process also keeps the water from freezing in cold weather, since the tower is constantly being drained and ...