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An architect's scale is a specialized ruler designed to facilitate the drafting and measuring of architectural drawings, such as floor plans and Multi-view orthographic projections. Because the scale of such drawings is often smaller than life-size, an architect's scale features multiple units of length and proportional length increments. [1]
A variety of rulers A carpenter's rule Retractable flexible rule or tape measure A closeup of a steel ruler A ruler in combination with a letter scale. A ruler, sometimes called a rule, scale or a line gauge or metre/meter stick, is an instrument used to make length measurements, whereby a length is read from a series of markings called "rules" along an edge of the device. [1]
a foreshortening technique using N scale model trains in the background (distance) with HO scale in the foreground. mixing 1:43 scale, 1:48 scale and 1:50 scale die-cast models with O scale model trains. using Matchbox cars (1:64 to 1:100) with HO scale and S scale. mixing OO scale British model trains with HO scale models. Both scales run on ...
Atlas Model Railroad Company, Inc. makes scale models in N scale, HO scale, and O scale. The company is based in Hillside, New Jersey, United States. They produce a wide variety of locomotives, rolling stock, and vehicles. Atlas is well known for their flex track and codes 55, 80, 83 and 100 track.
HO scale steam locomotives at the N&W RR museum in Crewe, Virginia. HO is the most popular model railroad scale in both continental Europe and North America, whereas OO scale (4 mm:foot or 1:76.2 with 16.5 mm track) is still dominant in the United Kingdom. There are some modellers in the United Kingdom who model in HO scale and the British 1:87 ...
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The C-Thru Ruler Company is an American maker of measuring devices and specialized products for drafting, designing and drawing. The company was formed in 1939 in Bloomfield, Connecticut , [ 1 ] by Jennie R. Zachs, a schoolteacher, who saw the need for transparent measuring tools such as rulers , triangles , curves and protractors .
Genaille–Lucas rulers (also known as Genaille's rods) are an arithmetic tool invented by Henri Genaille, a French railway engineer, in 1891. The device is a variant of Napier's bones . By representing the carry graphically, the user can read off the results of simple multiplication problems directly, with no intermediate mental calculations .