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  2. Recycling codes - Wikipedia

    en.wikipedia.org/wiki/Recycling_codes

    Recycling codes on products. Recycling codes are used to identify the materials out of which the item is made, to facilitate easier recycling process.The presence on an item of a recycling code, a chasing arrows logo, or a resin code, is not an automatic indicator that a material is recyclable; it is an explanation of what the item is made of.

  3. ColorChecker - Wikipedia

    en.wikipedia.org/wiki/ColorChecker

    The ColorChecker Classic chart is a rectangular card measuring about 11 by 8.25 inches (27.9 by 21.0 cm), or in its original incarnation about 13 by 9 inches (33 by 23 cm), an aspect ratio approximately the same as that of 35 mm film. [5]

  4. List of rail transport modelling scale standards - Wikipedia

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

    Using 32 mm (1.26 in) - 0 gauge - track, there is an extensive range of 16 mm to the foot scale [1:19] live-steam and other types of locomotives, rolling stock and accessories. Many of these models are dual gauge, and can be converted to run on 45 mm ( 1.772 in ) track ( gauge 1 ), and radio control is common.

  5. Rail transport modelling scales - Wikipedia

    en.wikipedia.org/wiki/Rail_transport_modelling...

    The European standard of 1:22.5 scale trains on 45 mm (1.772 in) track is called IIm scale, as per European narrow-gauge naming conventions or G scale, its popular name. Live steam: 1:24: 63 mm At 2 + 1 ⁄ 2 in (64 mm), this is the smallest of the "ridable" gauges [citation needed]. Only one or two passengers can be pulled.

  6. List of scale model sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_scale_model_sizes

    For dollhouse applications, 1:48 is commonly known as quarter scale (as it is one-quarter of the 1:12 "standard" dollhouse scale). Mainly military aircraft, but in 2005 Tamiya launched a new series of armored fighting vehicle (AFV) models in this scale. It is the American O scale. Architectural model scale corresponding to widely used ...

  7. Taylor microscale - Wikipedia

    en.wikipedia.org/wiki/Taylor_microscale

    The Taylor microscale falls in between the large-scale eddies and the small-scale eddies, which can be seen by calculating the ratios between and the Kolmogorov microscale . Given the length scale of the larger eddies l ∝ k 3 / 2 ϵ {\displaystyle l\propto {\frac {k^{3/2}}{\epsilon }}} , and the turbulence Reynolds number Re l {\displaystyle ...

  8. Microscale and macroscale models - Wikipedia

    en.wikipedia.org/wiki/Microscale_and_macroscale...

    Graphical comparison of the dynamics of macroscale and microscale simulations of Figures 1 and 2, respectively. (A) The black curve plots the exact solution to the macroscale model of Figure 1 with β = 1 / 5 {\displaystyle \beta =1/5} per year, δ = 1 / 10 {\displaystyle \delta =1/10} per year, and N 0 = 1000 {\displaystyle N_{0}=1000 ...

  9. Microscopic scale - Wikipedia

    en.wikipedia.org/wiki/Microscopic_scale

    The microscopic scale (from Ancient Greek μικρός (mikrós) 'small' and σκοπέω (skopéō) 'to look (at); examine, inspect') is the scale of objects and events smaller than those that can easily be seen by the naked eye, requiring a lens or microscope to see them clearly. [1]