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Spreckels Organ
The Spreckels Organ is a pipe organ that was designed by Ernest M. Skinner. It was installed in 1924 at the Legion of Honor museum in San Francisco, California. Public performances are held on Saturdays, 4:00–4:45 pm. Philanthropist John D. Spreckels commissioned the organ's manufacture. A commemorative plaque on the right side of the console states: "John D. Spreckels has generously given the organ in this temple for the pleasure of those who, like himself, are lovers of music AD MCMXXIV." Spreckels donated the organ as a tribute to his brother Adolph, who was dying from syphilis. Adolph died before the organ was completed. Setting The organ is located in the museum's Rodin gallery. It was designed to blend into the museum's structure; its 4,500 pipes are not visible to visitors. The ceiling of the gallery is canvas so that the organ can be heard throughout the gallery and museum; the canvas ceiling is painted as a ''trompe-l'œil'' to resemble a marble apse. Organ fe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Organ At California Palace Of The Legion Of Honor
Organ may refer to: Biology * Organ (biology), a part of an organism Musical instruments * Organ (music), a family of keyboard musical instruments characterized by sustained tone ** Electronic organ, an electronic keyboard instrument ** Hammond organ, an electro-mechanical keyboard instrument ** Pipe organ, a musical instrument that produces sound when pressurized air is driven through a series of pipes ** Street organ, a mobile, automatic mechanical pneumatic organ played by an organ grinder ** Theatre organ, a pipe organ originally designed specifically for imitation of an orchestra Films * ''Organ'' (film), a 1996 Japanese film about organ thieves * ''The Organ'' (film), a 1965 Slovak film Periodicals * Organ, any official periodical (i.e., magazine, newsletter, or similar publication) of an organization * ''Organ'' (magazine), a UK music magazine founded in 1986 * ''The Organ'' (magazine), a quarterly publication for organ enthusiasts, founded in 1921 * ''The Organ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walnut
A walnut is the edible seed of a drupe of any tree of the genus ''Juglans'' (family Juglandaceae), particularly the Persian or English walnut, '' Juglans regia''. Although culinarily considered a "nut" and used as such, it is not a true botanical nut. After full ripening, the shell is discarded and the kernel is eaten. Nuts of the eastern black walnut (''Juglans nigra'') and butternuts ('' Juglans cinerea'') are less commonly consumed. Characteristics Walnuts are rounded, single-seeded stone fruits of the walnut tree commonly used for food after fully ripening between September and November, in which the removal of the husk at this stage reveals a browning wrinkly walnut shell, which is usually commercially found in two segments (three or four-segment shells can also form). During the ripening process, the husk will become brittle and the shell hard. The shell encloses the kernel or meat, which is usually made up of two halves separated by a membranous partition. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tambourine
The tambourine is a musical instrument in the percussion family consisting of a frame, often of wood or plastic, with pairs of small metal jingles, called "zills". Classically the term tambourine denotes an instrument with a drumhead, though some variants may not have a head. Tambourines are often used with regular percussion sets. They can be mounted, for example on a stand as part of a drum kit (and played with drum sticks), or they can be held in the hand and played by tapping or hitting the instrument. Tambourines come in many shapes with the most common being circular. It is found in many forms of music: Turkish folk music, Greek folk music, Italian folk music, French folk music, classical music, Persian music, samba, gospel music, pop music, country music, and rock music. History The origin of the tambourine is unknown, but it appears in historical writings as early as 1700 BC and was used by ancient musicians in West Africa, the Middle East, Greece and India. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snare Drum
The snare (or side drum) is a percussion instrument that produces a sharp staccato sound when the head is struck with a drum stick, due to the use of a series of stiff wires held under tension against the lower skin. Snare drums are often used in orchestras, concert bands, marching bands, parades, drumlines, drum corps, and more. It is one of the central pieces in a drum set, a collection of percussion instruments designed to be played by a seated drummer and used in many genres of music. Snare drums are usually played with drum sticks, but other beaters such as the brush or the rute can be used to achieve different tones. The snare drum is a versatile and expressive percussion instrument due to its sensitivity and responsiveness. The sensitivity of the snare drum allows it to respond audibly to the softest strokes, even with a wire brush. It can be used for complex rhythmic patterns and engaging solos at moderate volumes. Its high dynamic range allows the player to produce po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crash Cymbal
A crash cymbal is a type of cymbal that produces a loud, sharp "crash" and is used mainly for occasional accents, as opposed to a ride cymbal. It can be mounted on a stand and played with a drum stick, or by hand in pairs. One or two crash cymbals are a standard part of a drum kit. Suspended crash cymbals are also used in bands and orchestras, either played with a drumstick or rolled with a pair of mallets to produce a slower, swelling crash. Sometimes a drummer may hit two different crash cymbals in a kit at the same time to produce a very loud accent, usually in rock music. Although crash cymbals range in thickness from paper-thin to very heavy, all crash cymbals have a fairly thin edge. They are typically in diameter, but sizes down to and up to are manufactured. Custom crash cymbals up to in diameter have been used by big bands. Different thicknesses are used for different kinds of music, and the alloy for each manufacturer's models varies. A thick cymbal is likely to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wooden Fish
A wooden fish, also known as a Chinese temple block, wooden bell, or ''muyu'', is a type of woodblock that originated from East Asia that is used by monks and lay people in the Mahayana tradition of Buddhism. They are used by Buddhist ceremonies in China, Korea, Japan, Vietnam and other Asian countries. They may be referred to as a Chinese block, Korean block or, rarely, as a skull. Wooden fish often used in rituals usually involving the recitation of sutras, mantras, or other Buddhist texts. In Chan Buddhism, the wooden fish serve to maintain rhythm during chanting. In Pure Land Buddhism, they are used when chanting the name of Amitabha. Wooden fish come in many sizes and shapes, ranging from , for laity use or sole daily practice, or to for usage in temples. Wooden fish are often (in Chinese temples) placed on the left of the altar, alongside a bell bowl, its metal percussion counterpart. Wooden fish often rest on a small embroidered cushion to prevent unpleasant knocki ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Castanets
Castanets, also known as ''clackers'' or ''palillos'', are a percussion instrument (idiophone), used in Spanish, Kalo, Moorish, Ottoman, Italian, Sephardic, Swiss, and Portuguese music. In ancient Greece and ancient Rome there was a similar instrument called the crotalum. The instrument consists of a pair of concave shells joined on one edge by a string. They are held in the hand and used to produce clicks for rhythmic accents or a ripping or rattling sound consisting of a rapid series of clicks. They are traditionally made of hardwood (chestnut; Spanish: castaño), although fibreglass has become increasingly popular. In practice, a player usually uses two pairs of castanets. One pair is held in each hand, with the string hooked over the thumb and the castanets resting on the palm with the fingers bent over to support the other side. Each pair will make a sound of a slightly different pitch. The origins of the instrument are not known. The practice of clicking hand-held sti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bass Drum
The bass drum is a large drum that produces a note of low definite or indefinite pitch. The instrument is typically cylindrical, with the drum's diameter much greater than the drum's depth, with a struck head at both ends of the cylinder. The heads may be made of calfskin or plastic and there is normally a means of adjusting the tension either by threaded taps or by strings. Bass drums are built in a variety of sizes, but size does not dictate the volume produced by the drum. The pitch and the sound can vary much with different sizes, Del Mar, Norman (1981). ''Anatomy of the Orchestra''. . but the size is also chosen based on convenience and aesthetics. Bass drums are percussion instruments and vary in size and are used in several musical genres. Three major types of bass drums can be distinguished. * The type usually seen or heard in orchestral, ensemble or concert band music is the orchestral, or concert bass drum (in Italian: gran cassa, gran tamburo). It is the largest dr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pneumatics
Pneumatics (from Greek ‘wind, breath’) is a branch of engineering that makes use of gas or pressurized air. Pneumatic systems used in industry are commonly powered by compressed air or compressed inert gases. A centrally located and electrically-powered compressor powers cylinders, air motors, pneumatic actuators, and other pneumatic devices. A pneumatic system controlled through manual or automatic solenoid valves is selected when it provides a lower cost, more flexible, or safer alternative to electric motors, and hydraulic actuators. Pneumatics also has applications in dentistry, construction, mining, and other areas. Gases used in pneumatic systems Pneumatic systems in fixed installations, such as factories, use compressed air because a sustainable supply can be made by compressing atmospheric air. The air usually has moisture removed, and a small quantity of oil is added at the compressor to prevent corrosion and lubricate mechanical components. Factory-plumb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kilowatt
The watt (symbol: W) is the unit of power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m2⋅s−3. It is used to quantify the rate of energy transfer. The watt is named after James Watt (1736–1819), an 18th-century Scottish inventor, mechanical engineer, and chemist who improved the Newcomen engine with his own steam engine in 1776. Watt's invention was fundamental for the Industrial Revolution. Overview When an object's velocity is held constant at one metre per second against a constant opposing force of one newton, the rate at which work is done is one watt. : \mathrm In terms of electromagnetism, one watt is the rate at which electrical work is performed when a current of one ampere (A) flows across an electrical potential difference of one volt (V), meaning the watt is equivalent to the volt-ampere (the latter unit, however, is used for a different quantity from the real power of an electrical circuit). : ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horsepower
Horsepower (hp) is a unit of measurement of power, or the rate at which work is done, usually in reference to the output of engines or motors. There are many different standards and types of horsepower. Two common definitions used today are the mechanical horsepower (or imperial horsepower), which is about 745.7 watts, and the metric horsepower, which is approximately 735.5 watts. The term was adopted in the late 18th century by Scottish engineer James Watt to compare the output of steam engines with the power of draft horses. It was later expanded to include the output power of other types of piston engines, as well as turbines, electric motors and other machinery. The definition of the unit varied among geographical regions. Most countries now use the SI unit watt for measurement of power. With the implementation of the EU Directive 80/181/EEC on 1 January 2010, the use of horsepower in the EU is permitted only as a supplementary unit. History The development of the stea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turbine
A turbine ( or ) (from the Greek , ''tyrbē'', or Latin ''turbo'', meaning vortex) is a rotary mechanical device that extracts energy from a fluid flow and converts it into useful work. The work produced by a turbine can be used for generating electrical power when combined with a generator.Munson, Bruce Roy, T. H. Okiishi, and Wade W. Huebsch. "Turbomachines." Fundamentals of Fluid Mechanics. 6th ed. Hoboken, NJ: J. Wiley & Sons, 2009. Print. A turbine is a turbomachine with at least one moving part called a rotor assembly, which is a shaft or drum with blades attached. Moving fluid acts on the blades so that they move and impart rotational energy to the rotor. Early turbine examples are windmills and waterwheels. Gas, steam, and water turbines have a casing around the blades that contains and controls the working fluid. Credit for invention of the steam turbine is given both to Anglo-Irish engineer Sir Charles Parsons (1854–1931) for invention of the reaction turbine, and to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
