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The RCW Catalogue (from Rodgers, Campbell & Whiteoak) is an astronomical catalogue of Hα-emission regions in the southern Milky Way, described in (Rodgers et al. 1960). It contains 182 objects, including many of the earlier Gum catalogue (84 items) objects.
RCW 88 is located about 3300 parsecs (10,000 light years) [1] from us, though other estimates place this at a closer 1800±300 pc. [ 7 ] or 1800±200 pc. [ 8 ] Assuming the former distance and the diameter as 5'-6' across, finds by simple trigonometry the true size subtends a minimum of 5±1 parsecs (16±3 light-years.)
The Sharpless catalog is a list of 313 H II regions (emission nebulae) intended to be comprehensive north of declination −27°. (It does include some nebulae south of that declination as well.) (It does include some nebulae south of that declination as well.)
In 1947, Frantz established the Sterling Steel Ball Company to manufacture carbon steel balls (ball (bearing)) for its Bearing Division and for other customers in various business verticals such as automotive, beauty, paint, toys, casters, and drawer slides. Today, Frantz Sterling Steel Ball Division is an IATF 16949:2016 certified expert at ...
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Kelvinator began buying Leonard's boxes for its electric refrigerated models. By 1923, the Kelvinator Company held 80% of the American market for electric refrigerators. [2] On July 3, 1925, Kelvinator bought Nizer Corporation in a tri-party merger valued at $20 million. [5] In 1926, the company acquired Leonard, which had been founded in 1881.
A two-cycle cascade refrigeration process schematic diagram. A cascade refrigeration cycle is a multi-stage thermodynamic cycle. An example two-stage process is shown at right. (Bottom on mobile) The cascade cycle is often employed for devices such as ULT freezers. [1]
An ice cream maker that has to be placed inside the freezer. Small freezer-unit machines sit inside the freezer (or the freezer part of the refrigerator) and operate similar to a food processor in slow-motion. Every few seconds, the paddles stir the mixture to prevent formation of large ice crystals.