notation for the classification of steam locomotives by wheel arrangement, 4-4-2 represents a configuration of a four-wheeled leading bogie, four powered...

In Whyte notation, 2-4-4-2 refers to a railroad steam locomotive that has two leading wheels followed by two sets of four coupled driving wheels and two...

Under the Whyte notation for the classification of steam locomotives, 2-4-2 represents the wheel arrangement of two leading wheels on one axle, four powered...

Under the Whyte notation for the classification of steam locomotives, 4-2-2 represents the wheel arrangement of four leading wheels on two axles, two...

Under the Whyte notation for the classification of steam locomotives, 4-6-2 represents the wheel arrangement of four leading wheels on two axles, six...

operated locomotives of this type, and many rebuilt their 4-2-0 and 2-4-0 locomotives as 4-4-0s. In April 1872, Railroad Gazette used "American" as the...

rebuilt to 4-4-2 "Atlantic" locomotives, classified as P7sa, and renumbered 350 to 353. B&O created a single 4-4-4 in 1934, rebuilding a 4-4-2 "Atlantic"...

2 + 2 = 2 × 2 = 2 2 = 2 ↑↑ 2 = 2 ↑↑↑ 2 = . . . = 4 {\displaystyle 2+2=2\times 2=2^{2}=2\uparrow \uparrow 2=2\uparrow \uparrow \uparrow 2=\;...\;=4} ...

dictionary. 2×4 or two by four may refer to: 2 4, a time signature in music 2×4 (Guadalcanal Diary album), 1987 2×4 (Einstürzende Neubauten album), 1984 2×4 (Malachi...

A 4-4-4-4 steam locomotive, in the Whyte notation for describing locomotive wheel arrangements, has a four-wheel leading truck, two sets of four driving...

differed little from that of the 4-6-2, but the steam-raising ability was increased, giving more power at speed. The 4-6-4 was best suited to high-speed...

Under the Whyte notation for the classification of steam locomotives, 2-4-0 represents the wheel arrangement of two leading wheels on one axle, four powered...

Under the Whyte notation for the classification of steam locomotives, 4-8-2 represents the wheel arrangement of four leading wheels, eight powered and...

as a Northern. The 4-8-4 wheel arrangement was a progression from the 4-8-2 Mountain type and, like the 2-8-4 Berkshire and 4-6-4 Hudson types, an example...

4-Mercapto-4-methyl-2-pentanone is an aroma compound with the chemical formula C6H12OS . It has a tropical flavor. It is found in Sauvignon wines and...

Under the Whyte notation, a 2-8-4 is a steam locomotive that has two unpowered leading wheels, followed by eight coupled and powered driving wheels, and...

Under the Whyte notation for the classification of steam locomotives, 4-2-4 represents the wheel arrangement of four leading wheels on two axles, two...

classification: '46+46' Swiss classification: '4/6+4/6' The equivalent UIC classification is refined to (2′D)D2′ for simple articulated locomotives. A similar...

numbers 1 + 2 + 3 + 4 + ⋯ is a divergent series. The nth partial sum of the series is the triangular number ∑ k = 1 n k = n ( n + 1 ) 2 , {\displaystyle...

Under the Whyte notation for the classification of steam locomotives, a 2-6-4 locomotive has two leading wheels, six coupled driving wheels and four trailing...

2/4 may refer to February 4 (month-day date notation) 2 April (day-month date notation) 2 4 time, a duple time signature used, for example, for polkas...

locomotives by wheel arrangement, a 4-8-2+2-8-4 is a Garratt articulated locomotive consisting of a pair of 4-8-2 engine units back to back, with the...

Under the Whyte notation for the classification of steam locomotives, 0-4-2 represents the wheel arrangement with no leading wheels, four powered and...

locomotives by wheel arrangement, a 4-6-2+2-6-4 is a Garratt or Union Garratt articulated locomotive using a pair of 4-6-2 engine units back to back, with...

In mathematics, 1 − 2 + 3 − 4 + ··· is an infinite series whose terms are the successive positive integers, given alternating signs. Using sigma summation...

Under the Whyte notation for the classification of steam locomotives, a 2-10-4 locomotive has two leading wheels on one axle, usually in a Bissel truck...

IS-4, also known as the Object 701, was a Soviet heavy tank that started development in 1943 and began production in 1946. Derived from the IS-2 and...

MPEG-4 Part 2, MPEG-4 Visual (formally ISO/IEC 14496-2) is a video compression format developed by the Moving Picture Experts Group (MPEG). It belongs...

Left 4 Dead 2 is a 2009 first-person shooter game developed and published by Valve. The sequel to Left 4 Dead (2008) and the second game in the Left 4 Dead...

instruments "Steven Wilson - 4 1/2 (Album Review)". 11 January 2016. "4 1/2 by Steven Wilson Reviews". Metacritic. Retrieved 22 June 2021. "4 ½ – Review". AllMusic...