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D72 Road (Isle Of Man)
D7, D07, D.VII, D VII, D.7 or D-7 may refer to: Arts and entertainment * D7, a chord (music) * D7, a note in the whistle register * ''D-7'' (Wipers song), a song by the Wipers from the 1980 album ''Is This Real?'' ** Covered by Nirvana on the 1992 album ''Hormoaning'' * ''D-7'', a fictional ''Star Trek'' Klingon starship class Businesses and organisations * Dinar Líneas Aéreas (1992–2002), IATA airline designator D7 * AirAsia X, IATA airline designator D7 * Digital 7, a group of national governments seeking to strengthen the digital economy Places * D7 road (Croatia), a state road * D7 motorway (Czech Republic) * A Dublin postal district Science, technology and mathematics Military *D.VII aircraft (other), a number of aircraft **Fokker D.VII, a German World War I fighter aircraft * HMS ''Patroller'' (D07), a 1943 British Royal Navy escort aircraft carrier * HMS ''D7'', a Royal Navy submarine launched in 1911 Transportation and vehicles * Bavarian D VII, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chord (music)
A chord, in music, is any harmonic set of pitches/frequencies consisting of multiple notes (also called "pitches") that are heard as if sounding simultaneously. For many practical and theoretical purposes, arpeggios and broken chords (in which the notes of the chord are sounded one after the other, rather than simultaneously), or sequences of chord tones, may also be considered as chords in the right musical context. In tonal Western classical music (music with a tonic key or "home key"), the most frequently encountered chords are triads, so called because they consist of three distinct notes: the root note, and intervals of a third and a fifth above the root note. Chords with more than three notes include added tone chords, extended chords and tone clusters, which are used in contemporary classical music, jazz and almost any other genre. A series of chords is called a chord progression. One example of a widely used chord progression in Western traditional music and blu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HMS Patroller (D07)
HMS ''Patroller'' was an escort carrier in the Royal Navy during the Second World War. Laid down in 1942 at the Seattle-Tacoma Shipbuilding company, she was originally named USS ''Keweenaw'' (CVE-44). USS ''Keweenaw'' (previously AVG-44 then later ACV-44) was an escort carrier laid down under Maritime Commission contract by Seattle-Tacoma Shipbuilding of Tacoma, Washington, 27 November 1942; launched 6 May 1943; sponsored by Mrs. R. G. Risley; assigned to the United Kingdom 10 June 1943; reclassified CVE-44 on 15 July 1943; and transferred to the United Kingdom under lend-lease 22 October 1943. During the remainder of war, she served the Royal Navy as HMS ''Patroller'' and operated in the Atlantic on convoy escort and patrol duty, with brief stints as a transport carrier for both the Army and Navy. Arriving Norfolk, Virginia, 9 December 1946, she was returned to the United States Navy the same day. Her name was struck from the Naval Vessel Registry 7 February 1947 and she was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
D7 Polytope
In 7-dimensional geometry, there are 95 uniform 7-polytope, uniform polytopes with D7 symmetry; 32 are unique, and 63 are shared with the B7 symmetry. There are two regular forms, the 7-orthoplex, and 7-demicube with 14 and 64 vertices respectively. They can be visualized as symmetric orthographic projections in Coxeter planes of the D6 Coxeter group, and other subgroups. __TOC__ Graphs Symmetric orthographic projections of these 32 polytopes can be made in the D7, D6, D5, D4, D3, A5, A3, Coxeter planes. Ak has ''[k+1]'' symmetry, Dk has ''[2(k-1)]'' symmetry. B7 is also included although only half of its [14] symmetry exists in these polytopes. These 32 polytopes are each shown in these 8 symmetry planes, with vertices and edges drawn, and vertices colored by the number of overlapping vertices in each projective position. References * Harold Scott MacDonald Coxeter, H.S.M. Coxeter: ** H.S.M. Coxeter, ''Regular Polytopes'', 3rd Edition, Dover New York, 1973 * Kaleidoscopes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
