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Small model railroad gauge and scale
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
Z_scale
Model railroad scale of 1:87
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. The rails
HO_scale
Scales used by rail transport models
all the scales. For instance, a Z scale wheel flange as defined in the NEM standard should be about 9% of the scale nominal standard gauge (6.5 mm /
Rail transport modelling scales
Rail_transport_modelling_scales
Modelling trains hobby
scale and can vary from 700 mm (27.6 in) tall for the largest rideable live steam scales such as 1:4, down to matchbox size for the smallest: Z-scale
Rail_transport_modelling
Modelling scale of 1:160, 1:150 (Japan), 1:148 (UK)
HO scale (1:87). While N scale is quite small, it is not the smallest commercially available scale, as Z scale is smaller yet at 1:220 and T scale is
N_scale
Topics referred to by the same term
Z, z, -z, z', or z- in Wiktionary, the free dictionary. Z, or z, is the twenty-sixth and last letter of the English alphabet. Z may also refer to: Z (1969
Z_(disambiguation)
German toy company
1901), HO scale in 1935, and the diminutive Z scale, 1:220, in 1972 — smallest in the world for decades — under the name Mini-Club (the scale of Z was assigned
Märklin
Toy depicting train
for toy trains also include S gauge, HO scale, N scale, and Z scale, in descending order of size. HO and N scale are the most popular model railway standards
Toy_train
Geometric transformation
{bmatrix}p_{x}\\p_{y}\\p_{z}\end{bmatrix}}={\begin{bmatrix}v_{x}p_{x}\\v_{y}p_{y}\\v_{z}p_{z}\end{bmatrix}}.} Such a scaling changes the diameter of an
Scaling_(geometry)
Cohort born from 1997 to 2012
Generation Z, often shortened to Gen Z and informally known as Zoomers, is the demographic cohort succeeding Millennials and preceding Generation Alpha
Generation_Z
Steam-powered models and toys
engines were 1:240 scale which is smaller than the 1:220 of Z Scale. The smallest scale Sherwood worked in was 1:480, though that was not live steam
Live_steam
Graphical calculator used in electrical engineering
Γ = Z − Z 0 Z + Z 0 = z − 1 z + 1 , {\displaystyle \Gamma ={\frac {Z-Z_{0}}{Z+Z_{0}}}={\frac {z-1}{z+1}},} where z = Z / Z 0 {\displaystyle z=Z/Z_{0}}
Smith_chart
Worldwide protests by Generation Z individuals
The Gen Z protests are a series of youth-led protests and riots that have occurred in some parts of the world during the 2020s. The protests in Bangladesh
Gen_Z_protests
Polish TV show
The 32th season of Taniec z gwiazdami, the Polish edition of Dancing with the Stars, the Polish edition of Dancing with the Stars, began in 6 September
Taniec_z_gwiazdami_season_32
Topics referred to by the same term
Switzerland, see Swiss Border Guard American Z Line (model trains), a company making Z-scale model rail, see Z scale 'Azl (Arabic: عزل) the withdrawal method
AZL
along similar components (the “Z axis”). The model was first published in a book in the first edition of The Art of Scalability. The authors claim first publishing
Scale_cube
Linear transform from the time domain to the frequency domain
X ( z ) z = z 2 z ( z 2 − 1.5 z + 0.5 ) = z z 2 − 1.5 z + 0.5 {\displaystyle {\frac {X(z)}{z}}={\frac {z^{2}}{z(z^{2}-1.5\,z+0.5)}}={\frac {z}{z^{2}-1
Z-transform
Modelling of narrow-gauge railways
gauge originally TT scale track) for models of 1,000 mm (3 ft 3+3⁄8 in) gauge and similar prototypes and H0i or H0f gauge (using Z-scale 6.5 mm / 0.256 in
HOn30_gauge
Scale for measuring spiciness of peppers
The Scoville scale is a measurement of spiciness of chili peppers and other substances, recorded in Scoville heat units (SHU). It is based on the concentration
Scoville_scale
How many standard deviations apart from the mean an observed datum is
quantile z such that Pr ( − z < Z < z ) = γ {\displaystyle \Pr \left(-z<Z<z\right)=\gamma } it follows: L = μ − z σ , U = μ + z σ {\displaystyle L=\mu -z\sigma
Standard_score
Measure of a civilization's evolution
The Kardashev scale (Russian: шкала Кардашёва, romanized: shkala Kardashova) is a method of measuring a civilization's level of technological advancement
Kardashev_scale
2026 foldable smartphones by Samsung Electronics
The Samsung Galaxy Z Fold 8 (stylized as Samsung Galaxy Z Fold8 and Z Fold8 Ultra) is a series of high-end Android-based foldable smartphones manufactured
Samsung_Galaxy_Z_Fold_8
1989–1996 television series based on the manga of the same name
Dragon Ball Z (DBZ) is a Japanese anime television series produced by Toei Animation. Part of the Dragon Ball media franchise, it serves as a direct sequel
Dragon_Ball_Z
Model railway scale
made their mark in the scale. Since then, interest in the scale has grown, and more models are now available than in Z scale, and TT has come close to
TT_scale
gauge; 6.5 mm for H0f gauge) being implied. The scales used include the general European modelling range of Z, N, TT, H0, 0 and also the large model engineering
List of narrow-gauge model railway scales
List_of_narrow-gauge_model_railway_scales
Concept in cosmology
The large-scale structure of the universe is the term in cosmology for the character of matter distribution at the scale of the entire observable universe
Large-scale structure of the universe
Large-scale_structure_of_the_universe
System that relates geologic strata to time
The geologic time scale or geological time scale describes how geologic time is divided into standardised intervals. It uses the rock record together with
Geologic_time_scale
scale, ZZ scale was the smallest commercially available scale for model railroads. ZZ scale ZZ scale Z scale Rail transport modelling scales Model railway
ZZ_scale
Protests led by the Cockroach Janta Party in New Delhi
On 20 July, thousands of protesters, comprising primarily students and Gen Z congregants, gathered near Jantar Mantar, defying orders from the Delhi Police
2026 Delhi Jantar Mantar protests
2026_Delhi_Jantar_Mantar_protests
Distance over which a quantity decreases by a factor of e
T in the disk is independent of z, h D {\displaystyle h_{\text{D}}} is sometimes known as the isothermal disk scale height. A magnetic field in a thin
Scale_height
2013 film by Marc Forster
World War Z is a 2013 American disaster action horror film starring Brad Pitt as Gerry Lane, a former United Nations investigator who travels the world
World_War_Z_(film)
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)
List_of_scale_model_sizes
different ranges of scale (see the article on scale space). A special type of scale-space representation is provided by the Gaussian scale space, where the
Scale_space_implementation
Topics referred to by the same term
a dataset Scalability, a computer or network's ability to function as the amount of data or number of users increases Scaling along the Z axis, a technique
Scaling
Miniatures wargame rules using 1:285 scale micro armour
MICRO scale enthusiast", is a set of rules for miniature wargaming set in World War II designed especially for use with HO scale and 1:285 scale micro
Angriff!
Mathematical function, inverse of an exponential function
ln(1 + z) when z is small, |z| < 1, since then ln ( 1 + z ) = z − z 2 2 + z 3 3 − ⋯ ≈ z . {\displaystyle \ln(1+z)=z-{\frac {z^{2}}{2}}+{\frac {z^{3}}{3}}-\cdots
Logarithm
Fractal with a boxlike shape
of z < 0.5: z := z * 4 else if magnitude of z < 1: z := z / (magnitude of z)^2 z := scale * z + c Here, c is the constant being tested, and scale is a
Mandelbox
Natural number
Mathematics portal 1,000,000,000,000 (one trillion on the short scale; one billion on the long scale; one thousand billion; one million million) is the natural
1,000,000,000,000
Unification of discrete and continuous theories of calculus
examples of time scales are the real numbers R {\displaystyle \mathbb {R} } and the discrete time scale h Z {\displaystyle h\mathbb {Z} } . A single point
Time-scale_calculus
SI unit of temperature
temperature in the International System of Units (SI). The Kelvin scale is an absolute temperature scale that starts at the lowest possible temperature (absolute
Kelvin
Shadow library search engine
shortly after law enforcement efforts to shut down Z-Library in 2022. The site aggregates records from Z-Library, Sci-Hub, and Library Genesis (LibGen),
Anna's_Archive
from White City. Micro-Trains specialized in N scale products, expanding later to include Nn3 and Z scale. Keith died on July 26, 2012, and Dale died on
Kadee
Measure of the level of acidity or basicity of an aqueous solution
In chemistry, pH (/piːˈheɪtʃ/ or /piːˈeɪtʃ/; pee-AYCH) is a logarithmic scale used to specify the acidity or basicity of aqueous solutions. Acidic solutions
PH
Natural number
Mathematics portal 1,000,000,000 ("one billion" on the short scale; "one milliard" on the long scale; one thousand million) is the natural number following
1,000,000,000
eastern states are also popular. Scale and gauge combinations used in modelling include: Nn3 – Using N scale (1:160 ratio) with Z (6.5 mm / 0.256 in) gauge track
3_ft_gauge_rail_modelling
Line of electric radio-controlled cars
Mini-Z is a brand name for a popular line of 1:28-scale electric radio-controlled cars manufactured by Kyosho Corporation, a Japanese manufacturer of various
Mini-Z
2026 foldable smartphone by Samsung Electronics
The Samsung Galaxy Z Flip 8 (stylized as Samsung Galaxy Z Flip8) is an Android-based foldable smartphone manufactured, developed, designed and marketed
Samsung_Galaxy_Z_Flip_8
2024 foldable smartphone by Samsung Electronics
The Samsung Galaxy Z Fold 6 (stylized as Samsung Galaxy Z Fold6) is a foldable smartphone developed by Samsung Electronics. It was officially announced
Samsung_Galaxy_Z_Fold_6
Physical representation of an object
A scale model is a physical model that is geometrically similar to an object (known as the prototype). Scale models are generally smaller than large prototypes
Scale_model
System for digital control of model railways
produced appeared on the market early 1989 for Arnold (N scale) and mid 1990 for Märklin (Z scale, H0 scale and 1 gauge; Digital=). Märklin and Arnold exited
Digital_Command_Control
Polish TV show
The 31st season of Taniec z gwiazdami, the Polish edition of Dancing with the Stars, began on 1 March 2026. This is the eighteenth season aired on Polsat
Taniec_z_gwiazdami_season_31
Distinction between nominal, ordinal, interval and ratio variables
Level of measurement or scale of measure is a classification that describes the nature of information within the values assigned to variables. Psychologist
Level_of_measurement
List of characters appearing in the Marvel Cinematic Universe
Contents: A–L (previous page) M N O P Q R S T U V W X Y Z See also References Mary MacPherran (portrayed by Jameela Jamil), also known as Titania, is
Characters of the Marvel Cinematic Universe: M–Z
Characters_of_the_Marvel_Cinematic_Universe:_M–Z
Small-scale model used in miniature wargaming
In miniature wargaming, players enact simulated battles using scale models called miniature models, which can be anywhere from 2 to 54 mm in height, to
Miniature_model_(gaming)
Cohort born during the early 1990s to late 1990s
later years of the Millennial generation and the early years of Generation Z. Sources typically give ranges of those born from 1993 to 1998, though some
Zillennials
American painter and miniatures artist
The buildings in both collections are in "Z”scale (1/220), with the vehicles and characters in 1:160th scale. In 2011 at Disney's D23 2011 Expo held at
Robert_W._Olszewski
Rendering issue in 3D modeling
Z-fighting, also called stitching or planefighting, is a phenomenon in 3D rendering that occurs when two or more primitives have very similar distance
Z-fighting
Substance dissolving a solute resulting in a solution
mY scale measures polarity in terms of solvent influence on buildup of positive charge of a solute during a chemical reaction. Kosower's Z scale measures
Solvent
rail transport modelling scale representing Feldbahn-style 2 ft and 600 mm gauge railways using 1:87 HO scale running on Z gauge 6.5-millimetre (0.26 in)
H0f_gauge
Family of mainframe computers
IBM Z from IBM z Systems; the IBM Z family includes the newest model, the IBM z17, as well as the z16, z15, z14, and z13 (released under the IBM z Systems/IBM
IBM_Z
Polish TV show
The 30th season of Taniec z gwiazdami, the Polish edition of Dancing with the Stars, began on 14 September 2025. This was the seventeenth season aired
Taniec_z_gwiazdami_season_30
Number functioning as an exponent
with a scale factor of Z, and these scaled representations are subsequently multiplied, the result is the following: AZ * BZ = Q AZ is the scaled real world
Scale factor (computer science)
Scale_factor_(computer_science)
Japanese video game age rating organization
ideology-related expression type" (Language). Each expression is rated using the A to Z scale that the rating marks use. After the group evaluates the game, the results
Computer Entertainment Rating Organization
Computer_Entertainment_Rating_Organization
Cost advantages obtained via scale of operation
In microeconomics, economies of scale are the cost advantages that enterprises obtain due to their scale of operation, and are typically measured by the
Economies_of_scale
American chemist (1929–2022)
and later work in biophysical chemistry. In particular, he developed the Z scale for solvent polarity based on the solvatochromic effect for zwitterionic
Edward_Kosower
Medical system for classifying human faeces
The Bristol stool scale is a diagnostic medical tool designed to classify the form of human faeces into seven categories. It is used in both clinical
Bristol_stool_scale
Interval content of a given set in musical set theory
referred to as a Z-hexachord. Any hexachord not of the "Z" type is its own complement while the complement of a Z-hexachord is its Z-correspondent, for
Interval_vector
Polish TV show
The 29th season of Taniec z gwiazdami, the Polish edition of Dancing with the Stars, began on 2 March 2025. This was the sixteenth season aired on Polsat
Taniec_z_gwiazdami_season_29
Fractal named after mathematician Benoit Mandelbrot
function f c ( z ) = z 2 + c {\displaystyle f_{c}(z)=z^{2}+c} does not diverge to infinity when iterated starting at z = 0 {\displaystyle z=0} . In other
Mandelbrot_set
Measure of statistical effect size
high-throughput setting. The Z-factor is an attempt to quantify the suitability of a particular assay for use in a full-scale HTS. The Z-factor is defined in
Z-factor
naming scales for large numbers have been used in English and other European languages since the early modern era: the long and short scales. Most English
Names_of_large_numbers
2021 studio album by Twenty One Pilots
Conversely, AllMusic's Neil Z. Yeung wrote that "whether or not they decide to revive their ongoing album mythology, Scaled and Icy will remain a quick
Scaled_and_Icy
9-point subjective sleepiness assessment scale
format of the Karolinska Sleepiness Scale". Sleep and Breathing. 18 (4): 731–739. doi:10.1007/s11325-013-0935-z. ISSN 1522-1709. PMID 24474446. Marklund
Karolinska_Sleepiness_Scale
Largest structures in the universe, made of galaxies
(March 2013). "A structure in the early Universe at z ∼ 1.3 that exceeds the homogeneity scale of the R-W concordance cosmology". Monthly Notices of
Galaxy_filament
Personality construct
2011.04.011. Czarna, Anna Z.; Jonason, Peter K.; Dufner, Michael; Kossowska, Małgorzata (30 March 2016). "The Dirty Dozen Scale: Validation of a Polish
Machiavellianism_(psychology)
Features that do not change if length or energy scales are multiplied by a common factor
physics, mathematics and statistics, scale invariance is a feature of objects or laws that do not change if scales of length, energy, or other variables
Scale_invariance
Problem-solving technique in applied mathematics using order-of-magnitude approximations
made using their scales: ∂ w ∂ t ∼ W T u ∂ w ∂ x ∼ U W L v ∂ w ∂ y ∼ U W L w ∂ w ∂ z ∼ W W H u 2 R ∼ U 2 R v 2 R ∼ U 2 R 1 ϱ ∂ p ∂ z ∼ 1 ϱ Δ P H Ω u cos
Scale_analysis_(mathematics)
Small rigid plate that grows out of an animal's skin
In zoology, a scale (Ancient Greek: λεπίς, romanized: lepís; Latin: squāma) is a small rigid plate made out of keratin that grows out of vertebrate animals'
Scale_(zoology)
Anti-government upheaval in Nepal
September 2025, large-scale anti-corruption protests and demonstrations took place all across Nepal, predominantly organized by Generation Z students and young
2025_Nepalese_Gen_Z_protests
Function for integral Fourier-like transform
formula x ( t ) = ∑ m ∈ Z ∑ n ∈ Z ⟨ x , ψ m , n ⟩ ⋅ ψ m , n ( t ) {\displaystyle x(t)=\sum _{m\in \mathbb {Z} }\sum _{n\in \mathbb {Z} }\langle x,\,\psi _{m
Wavelet
Protective gear using small, overlapping plates
Scale armour is an early form of armour consisting of many individual small armour scales (plates) of various shapes attached to each other and to a backing
Scale_armour
Change in wavelength of light
z_{\mathrm {p} }} , related by: ( 1 + z ) = ( 1 + z ¯ ) ( 1 + z p ) {\displaystyle (1+z)=(1+{\bar {z}})(1+z_{\mathrm {p} })} or z p = z − z ¯ 1 + z ¯
Redshift
others) born from 1997 to 2012, colloquially known as Generation Z (shortened for Gen Z or Zoomers), to be nominated or win an Academy Award starting in
List of Generation Z Academy Award winners and nominees
List_of_Generation_Z_Academy_Award_winners_and_nominees
Method used to normalize the range of independent variables
Feature scaling is a method used to normalize the range of independent variables or features of data. In data processing, it is also known as data normalization
Feature_scaling
First formal technique to measure an attitude
such extreme values leaves empty cells in the Z matrix, the averaging procedure for arriving at the scale values cannot be applied, and an elaborate procedure
Thurstone_scale
Polish TV show
The 28th season of Taniec z gwiazdami, the Polish edition of Dancing with the Stars, began on 15 September 2024. It’s the fifteenth season aired on Polsat
Taniec_z_gwiazdami_season_28
Polish TV show
The 27th season of Taniec z gwiazdami, the Polish edition of Dancing with the Stars began on 3 March 2024. This was the fourteenth season aired on Polsat
Taniec_z_gwiazdami_season_27
Japanese manufacturing company
remote driven Godzilla models. In 2007, Tokyo Marui released Z- scale model trains under the Pro-Z title including fully developed rail dioramas with several
Tokyo_Marui
Goods train tank engine
with the Deutsche Bundesbahn, it is in the DB's transport directory. A Z scale model of the Class 89.0 locomotive has been used as the symbol for this
DRG_Class_89.0
American generation born from 1997 to 2012
Generation Z (or Gen Z for short), colloquially known as Zoomers, is the demographic cohort succeeding Millennials and preceding Generation Alpha. Members
Generation Z in the United States
Generation_Z_in_the_United_States
colleagues in 2010. The 3D-ASCr scale was described by Matthias Liechti and colleagues in 2025. List of hallucinogen scales Herrmann Z, Earleywine M, De Leo J
Altered States of Consciousness Rating Scales
Altered_States_of_Consciousness_Rating_Scales
Swiss steam locomotive
only carry 7 tons of coal. Scale models of the A 3/5 have been produced in a number of scales, from the tiny 1:220 Z scale, up to 1:32 Gauge 1. List of
SBB_A_3/5
Russian militarist symbol
The Latin-script letter Z (Russian: зет, romanized: zet, IPA: [zɛt]) is one of several symbols (including "V" and "O") painted on military vehicles of
Z_(military_symbol)
T_{m}(z)={\frac {M_{0}}{M(z)}}\cdot {T(z)}} Tm(z) is molecular-scale temperature at altitude z; M0 is molecular weight of air at sea level; M(z) is molecular
Molecular-scale_temperature
Scale for measuring the opacity of smoke
The Ringelmann scale is a scale for measuring the apparent density or opacity of smoke. It was developed by a French professor of agricultural engineering
Ringelmann_scale
(2013-01-11). "A structure in the early Universe at z ~ 1.3 that exceeds the homogeneity scale of the R-W concordance cosmology". Monthly Notices of
List of largest cosmic structures
List_of_largest_cosmic_structures
of the following gauges: G scale O scale On30 scale 00 scale HO Scale HOn3 1/2 scale HOn 2 1/2 scaleAustr N scale Z scale The programme sponsors a vote
Sydney Model Railway Exhibition
Sydney_Model_Railway_Exhibition
Concept in theoretical physics
into the changes in a physical system as it is viewed at different scales. The scales of the system typically describe the interactions of the objects;
Renormalization_group
Extinct genus of turtles
between the Z and Y scale are raised, towards the bottom of the jaw where the Z scale connects to the F scales this ridge becomes a trough. Scale Y meanwhile
Meiolania
Letter of the Latin alphabet
Ƶ (minuscule: ƶ), called Z with stroke, is a letter of the Latin alphabet derived from Z, with the addition of a stroke through the center. Ƶ was used
Z_with_stroke
Z SCALE
Z SCALE
Z SCALE
Z SCALE
Z SCALE
Z SCALE
Z SCALE
Z SCALE
Z SCALE