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ROMBUS
{{disambiguation ...
A rhombus is a geometric shape often colloquially described as a diamond. Rhombus may also refer to: __NOTOC__ Music * Rhombus (band), a roots reggae band from New Zealand * Rhombus (UK band), British gothic rock band *Bullroarer, a musical instrument Other uses *Reticulum, a southern constellation, once called Rhombus * Rhombus formation, a troop formation *Rhombus Media, a Canadian film and television production company * Reusable Orbital Module, Booster, and Utility Shuttle (ROMBUS), a proposed reusable single-stage-to-orbit space launch vehicle See also * Rhombic (other) *Rhumb (other) Rhumb may refer to: * Rhumb line, a navigational path with a constant bearing * one of the 16 or 32 points of the compass The points of the compass are a set of horizontal, radially arrayed compass directions (or azimuths) used in navigation an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Single-stage-to-orbit
A single-stage-to-orbit (SSTO) vehicle reaches orbit from the surface of a body using only propellants and fluids and without expending tanks, engines, or other major hardware. The term usually, but not exclusively, refers to reusable vehicles. To date, no Earth-launched SSTO launch vehicles have ever been flown; orbital launches from Earth have been performed by either fully or partially expendable multi-stage rockets. The main projected advantage of the SSTO concept is elimination of the hardware replacement inherent in expendable launch systems. However, the non-recurring costs associated with design, development, research and engineering (DDR&E) of reusable SSTO systems are much higher than expendable systems due to the substantial technical challenges of SSTO, assuming that those technical issues can in fact be solved. SSTO vehicles may also require a significantly higher degree of regular maintenance. It is considered to be marginally possible to launch a single-stage- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhombus
In plane Euclidean geometry, a rhombus (plural rhombi or rhombuses) is a quadrilateral whose four sides all have the same length. Another name is equilateral quadrilateral, since equilateral means that all of its sides are equal in length. The rhombus is often called a "diamond", after the diamonds suit in playing cards which resembles the projection of an octahedral diamond, or a lozenge, though the former sometimes refers specifically to a rhombus with a 60° angle (which some authors call a calisson after the French sweet – also see Polyiamond), and the latter sometimes refers specifically to a rhombus with a 45° angle. Every rhombus is simple (non-self-intersecting), and is a special case of a parallelogram and a kite. A rhombus with right angles is a square. Etymology The word "rhombus" comes from grc, ῥόμβος, rhombos, meaning something that spins, which derives from the verb , romanized: , meaning "to turn round and round." The word was used both by Eucl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhombus (band)
Rhombus are a dub/drum and bass/reggae/roots band from Wellington, New Zealand. They were formed in 2001 by Thomas Voyce and Simon Rycroft, later joined by Ahmen Mahal aka Imon Star (who departed from the group in 2007 to pursue his solo project Olmecha Supreme) and Koa Williams (Roots Foundation Sound System founding member). The band has toured extensively in their native New Zealand along with a few international dates, notably in Japan (2002) and in Australia, playing twice at the Sydney Opera House in November 2004. They also performed at the Big Day Out in 2006. Over the years, the band has performed with such acts as St Germain, Fat Freddy's Drop, Salmonella Dub, Michael Franti, Dry & Heavy, Trinity Roots, Gomez, Kora, Shapeshifter, and Katchafire. Rhombus have given their time to a number of causes including Greenpeace, Tsunami Relief, SurfAid International, the Cancer Society, and thPeace Boat Their travels on the Japanese-based global NGO Peace Boat have taken ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhombus (UK Band)
Rhombus are a British gothic rock band based in West Yorkshire, England. Originally formed in Bristol, England, in 2002 by bass player Ed Grassby and featuring his brother and sister-in-law on guitars, the band started to gain momentum after Ed relocated to Huddersfield, West Yorkshire and recruited new guitarists Robert Walker and Simon Cardwell. The band played extensively around the UK for the next few years gaining a reputation for solid live performances; and intelligent and often witty lyrics. The band's profile rose as they acquired support gigs with bands such as The Damned and NFD as well as playing with a number of bands who went on to form the base of the contemporary UK Goth Rock scene. A string of self-released EPs (''Rat City'', 2003, ''Attention Seeker'', 2004, ''The Closing Time EP'', 2006) led to their music being added to club and alternative radio playlists around the world. In July 2007, the band put out their first full album. ''Remembrance Day'' was r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bullroarer
The bullroarer, ''rhombus'', or ''turndun'', is an ancient ritual musical instrument and a device historically used for communicating over great distances. It consists of a piece of wood attached to a string, which when swung in a large circle produces a roaring vibrato sound. It dates to the Paleolithic period, being found in Ukraine dating from 18,000 BC. Anthropologist Michael Boyd, a bullroarer expert, documents a number found in Europe, Asia, Africa, the Americas, and Australia. In ancient Greece it was a sacred instrument used in the Dionysian Mysteries and is still used in rituals worldwide. It was a prominent musical technology among the Australian Aboriginal people, used in ceremonies and to communicate with different people groups across the continent. Many different cultures believe that the sounds they make have the power to ward off evil influences. Design, use, and sound A bullroarer consists of a weighted airfoil (a rectangular thin slat of wood about lon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reticulum
Reticulum is a small, faint constellation in the southern sky. Its name is Latin for a small net, or reticle—a net of crosshairs at the focus of a telescope eyepiece that is used to measure star positions. The constellation is best viewed between October and December, and save for one main star visible in ideal conditions, cannot be seen from north of the 30th parallel north. History A constellation in this area was introduced by Isaac Habrecht II in his celestial globe in 1621, who named it ''Rhombus''. It was replaced with a somewhat different constellation by the French astronomer Nicolas Louis de Lacaille in the eighteenth century; during his stay at the Cape of Good Hope, he named the constellation le Réticule Rhomboide to commemorate the reticle in his telescope eyepiece. The name was later Latinized to Reticulum in his star catalogue ''Coelum Australe Stelliferum''. In 1810, the stars of Reticulum were used by William Croswell to produce the constellation '' Marmor Sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhombus Formation
A rhombus is a cavalry formation in which troops are arrayed to form a rhombus-shaped body. The rhombus in antiquity Cavalry in rhombus formation has superior maneuverability, being able to rapidly change its direction by alternating leaders posted at its four points. It is the customary formation of the famed Thessalian cavalry and according to Arrian, it was invented by the Thessalian Iason (Jason). Aelian Aelian or Aelianus may refer to: * Aelianus Tacticus, Greek military writer of the 2nd century, who lived in Rome * Casperius Aelianus, Praetorian Prefect, executed by Trajan * Claudius Aelianus, Roman writer, teacher and historian of the 3rd centu ... argues that its origins are even more ancient and gives as its inventor the Thessalian Ilon, from whom, he adds, the word "ile" (Greek for cavalry squadron) derives. Asclepiodotus also praises the formation's maneuverability. According to Asclepiodotus, the Thessalians placed their best men on the sides and the very best of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhombus Media
Rhombus Media is a film and television production company formed in 1978 at the York University Film Department by Barbara Willis Sweete and Niv Fichman, and based in Toronto, Ontario, Canada. Larry Weinstein joined soon after. Rhombus Media developed a reputation for producing high-quality, lush art films focusing on music, theatre, and dance. The company has received many national and international awards for their work, including several Emmys: one for ''Le Dortoir'' in 1990, one for ''Canadian Brass: Home Movies'' in 1992, and one win in 1993 for an episode of the Channel 4 Series ''Concerto'', featuring Aaron Copland Aaron Copland (, ; November 14, 1900December 2, 1990) was an American composer, composition teacher, writer, and later a conductor of his own and other American music. Copland was referred to by his peers and critics as "the Dean of American Com .... They have also won numerous Genie Awards, including Best Motion Picture in 1993 for ''Thirty Two Short Films ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhombic (other)
Rhombic may refer to: *Rhombus, a quadrilateral whose four sides all have the same length (often called a diamond) *Rhombic antenna, a broadband directional antenna most commonly used on shortwave frequencies * polyhedra formed from rhombuses, such as the rhombic dodecahedron or the rhombic triacontahedron or the rhombic dodecahedral honeycomb or the rhombic icosahedron or the rhombic hexecontahedron or the rhombic enneacontahedron or the trapezo-rhombic dodecahedron * other things that exhibit the shape of a rhombus, such as rhombic tiling, Rhombic Chess, rhombic drive, Rhombic Skaapsteker, rhombic egg eater, rhombic night adder ''Causus rhombeatus'', commonly known as the rhombic night adder, is a viper species endemic to subsaharan Africa. No subspecies are currently recognized. Like all other vipers, it is venomous. Description With an average total length (body + ta ..., forest rhombic night adder {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
