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  2. Help:Convert - Wikipedia

    en.wikipedia.org/wiki/Help:Convert

    By default, the output value is rounded to adjust its precision to match that of the input. An input such as 1234 is interpreted as 1234 ± 0.5, while 1200 is interpreted as 1200 ± 50, and the output value is displayed accordingly, taking into account the scale factor used in the conversion.

  3. List of rail transport modelling scale standards - Wikipedia

    en.wikipedia.org/wiki/List_of_rail_transport...

    1:120: 12 mm (0.472 in) Track was introduced by Peco in 2022, closely followed by a range of locomotives, rolling stock and track from Hornby. This has the accurate scale and gauge combination of 2.54 mm : 1 ft on 12 mm track, as has been used by European and American hobbyists, who refer to this as TT. TT3 or 3 mm: 1:102: 12 mm (0.472 in)

  4. List of gauge conversions - Wikipedia

    en.wikipedia.org/wiki/List_of_gauge_conversions

    311 mm (12 + 1 ⁄ 4 in) 381 mm (15 in) 1986 United Kingdom: Wales Fairbourne Railway 610 mm (2 ft) 914 mm (3 ft) 1986 United Kingdom: Wales Gorseddau Junction and Portmadoc Railway: 1,435 mm (4 ft 8 + 1 ⁄ 2 in) 2,140 mm (7 ft 1 ⁄ 4 in) 1892 United Kingdom: England / Wales Great Western Railway: 600 mm (1 ft 11 + 5 ⁄ 8 in)

  5. 5.5 mm scale - Wikipedia

    en.wikipedia.org/wiki/5.5_mm_scale

    12 mm (0.472 in) gauge track is used to represent 2 ft (610 mm) to 2 ft 3 in (686 mm) gauge prototypes. 16.5 mm (0.65 in) gauge track is used to represent 3 ft (914 mm) gauge prototypes. Very narrow industrial or rural lines can be represented by N-gauge (9 mm gauge) on OO9-track do give 18 in (457 mm). These 5.5mm could be called "5.5-ind".

  6. 12 mm - Wikipedia

    en.wikipedia.org/wiki/12_mm

    HOn3½ gauge, 1:87.1 scale with rails 12 mm apart, representing 3-foot-6-inch gauge; H0m, 1:87 scale with rails 12 mm apart, representing metre gauge; 00n3, 1:76 scale with rails 12 mm apart, representing 3-foot gauge; 5.5 mm scale, 1:55 scale with rails 12 mm apart, representing narrow gauge; On2 gauge, 1:48 scale with rails 12.7 mm apart ...

  7. HO scale - Wikipedia

    en.wikipedia.org/wiki/HO_scale

    HO or H0 is a rail transport modelling scale using a 1:87 scale (3.5 mm to 1 foot). It is the most popular scale of model railway in the world. [1] [2] The rails are spaced 16.5 millimetres (0.650 in) apart for modelling 1,435 mm (4 ft 8 + 1 ⁄ 2 in) standard gauge tracks and trains in HO.

  8. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Fluorescent-lamp formats - Wikipedia

    en.wikipedia.org/wiki/Fluorescent-lamp_formats

    Like the European modular furniture, display cabinets, ceiling tile grids, etc. they were designed for, these are based on multiples of the 300 mm (11.8 in) "metric foot" instead of the 12 in (305 mm) imperial foot, but are all 37 mm (1.5 in) shorter to allow space for the lampholder connections within the 300 mm modular units, and for much ...