O scale (or O gauge) is a scale commonly used for toy trains and rail transport modelling. Introduced by German toy manufacturer Märklin around 1900,...

gauge tracks and trains in HO. The name HO comes from 1:87 scale being half that of O scale, which was originally the smallest of the series of older and...

scale sizes are internationally standardized, with the notable exceptions of O scale and N scale. There are three different versions of the "O" scale...

challenged the predominant O scale (1:48) manufacturers such as Lionel with a fully developed line of 1:64 scale and semi-scale equipment marketed under...

Cherry Valley O Scale is a not-for-profit club dedicated to the promotion of 2-rail O-scale (1:48) model railroading, located in Merchantville, New Jersey...

This is a list of scale model sizes, listing a variety of size ratios for scale models. Super Series - 1:1400 Scale, Modern Brands website (accessed 2017-06-21)...

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...

TT scale (from "table top") is a model railroading scale at 1:120 scale with a Track gauge of 12 mm between the rails. It is placed between HO scale (1:87)...

This scale is similar to O scale used in model trains and 1:50 scale will appear compatible with 1:48 scale models as produced by US manufacturers of O scale...

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...

the following table the various grading systems are compared (the IDC-O scale is not comprised because it is not considered a real grading system): WHO...

Gilbert began manufacturing S scale trains around 1939 that ran on three rail "O" gauge track. This was known as 3⁄16-inch O gauge. Gilbert stopped producing...

1:43 scale is a popular size of die-cast model cars in Europe, Asia and the US. It has its origins in the British / European O scale for model trains...

protocol is considered scalable with respect to network size, if the size of the necessary routing table on each node grows as O(log N), where N is the...

mostly in O scale and S scale, to describe a "compromise" form of modelling that strives for realism while accepting the compromises in scale associated...

The 1:12 scale is a traditional scale (ratio) for models and miniatures. In this scale (ratio), one inch on the scale model or miniature is equal to twelve...

trains, where it is known as "O scale". 1:48 is also a popular scale among Lego enthusiasts, since it is approximately the scale of the Lego minifigure relative...

The Kardashev scale (Russian: Шкала́ Кардашёва, romanized: Shkalá Kardashova) is a method of measuring a civilization's level of technological advancement...

based in Switzerland. Lemaco produces models at almost any scale, like HO scale, O scale, N scale, 1 gauge and 2 gauge. After 30 years spent at Fulgurex,...

Z scale is one of the smallest commercially available model railway scales (1:220), with a track gauge of 6.5 mm / 0.256 in. Introduced by Märklin in 1972...

OO gauge or OO scale (also, 00 gauge and 00 scale) is the most popular standard gauge model railway standard in the United Kingdom, outside of which it...

The Beaufort scale /ˈboʊfərt/ is an empirical measure that relates wind speed to observed conditions at sea or on land. Its full name is the Beaufort...

popular scales are: G scale, Gauge 1, O scale, S scale, HO scale (in Britain, the similar OO), TT scale, and N scale (1:160 in the United States, but 1:148...

The long and short scales are two of several naming systems for integer powers of ten which use some of the same terms for different magnitudes. Some languages...

foot in scale either in millimetres or in inches. For instance, 3.5 mm scale is the same as HO. For HO and O -scales, NMRA uses the letter "O" whereas...

(Ukraine) Modelsvit (Ukraine) MPM production s.r.o. (Czech Republic) Olimp Model (Ukraine) OzMods Scale Models (Australia) Pavla Models (Czech Republic)...

The Richter scale (/ˈrɪktər/), also called the Richter magnitude scale, Richter's magnitude scale, and the Gutenberg–Richter scale, is a measure of the...

model trains in O scale but due to competition, particularly by Märklin H0 scale, began the transition to H0 in 1954 with their final O scale set being manufactured...

1:32 scale is a traditional scale for models and miniatures, in which one unit (such as an inch or a centimeter) on the model represents 32 units on the...

2000, approximately O scale (1:44). Corgi Toys; Nos. 275 and 281 (production 1968–70 and 1971–73), Rover 2000 TC, approximately O-scale (1:44). Corgi Toys;...