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The Fuller calculator, sometimes called Fuller's cylindrical slide rule, is a cylindrical slide rule with a helical main scale taking 50 turns around the cylinder. This creates an instrument of considerable precision – it is equivalent to a traditional slide rule 25.40 metres (1,000 inches) long.
Dollhouse for a dollhouse scale for 1:12 dollhouses. Commonly used for mini armor. Used for 12 mm, and 12.5 mm figure scale miniature wargaming. 1:128: 3 ⁄ 32 in: 2.381 mm A few rockets and some fit-in-the-box aircraft are made to this size. 1:120: 0.1 in: 2.54 mm: Model railways (TT) Derived from the scale of 1 inch equals 10 feet.TT model ...
ARLO-Micromodels (former - Fabrica de construções ARLO - Porto-Portugal, established in 1939 by Arnaldo Luizello da Rocha-Brito) - Still existing today and as a five generation owned brand, Patent 22130 (discontinued actually), as being the first multimaterial kits produced, using several wood types parts, industrially finely cut and lathe shaped, embossed tinplate parts using cutting dies ...
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) and N scale (1:160). Its original purpose, as the name suggests, was to make a train set small enough to assemble and operate on a tabletop.
Models were made in China, usually in batches of between 1,000 and 5,000 pieces. [4] The normal scale produced was 1:24, but models were also issued in 1:43, 1:18 and even a very large 1:8 for the 1885 Daimler (Single Track) Reitwagen and the 1885/1886 Benz Patent-Motorwagen. [1] [5]
A partially disassembled Curta calculator, showing the digit slides and the stepped drum behind them Curta Type I calculator, top view Curta Type I calculator, bottom view. The Curta is a hand-held mechanical calculator designed by Curt Herzstark. [1] It is known for its extremely compact design: a small cylinder that fits in the palm of the hand.
SR-50 (1974) Printed circuit board. Data code 035: 3rd week 1975. The SR-50 was Texas Instruments' first scientific pocket calculator with trigonometric and logarithm functions. . It enhanced their earlier SR-10 and SR-11 calculators, introduced in 1973, which had featured scientific notation, squares, square root, and reciprocals, but had no trig or log functions, and lacked other featur
It uses AG10 batteries and has 3 key independent memory and has a hard shell cover. It costs $62.99 on the official Victor website for a 10 pack so 62.99/10 would be $6.299 for 1 calculator. [5] 907 - The 907 is a black and grey/gray 1.6 oz portable calculator with a 10-digit LCD display with 20 built-in conversion functions. It includes a ...