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Metronome
A metronome () is a device that produces an audible click or other sound at a uniform interval that can be set by the user, typically in beats per minute (BPM). Metronomes may also include synchronized visual motion, such as a swinging pendulum or a blinking light. Musicians—and others including dancers, athletes, and health professionals—often practise with a metronome to improve their timing, especially the ability to maintain a steady tempo with a regular beat or pulse. Composers and conductors often use numerical metronome markings to communicate their preferred tempos to musicians preparing for a performance. A type of metronome was among the inventions of Andalusian polymath Abbas ibn Firnas (810–887). In 1815, German inventor Johann Maelzel patented a mechanical, wind-up metronome as a tool for musicians, under the title "Instrument/Machine for the Improvement of all Musical Performance, called Metronome". In the 20th century, electronic metronomes and software ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dietrich Nikolaus Winkel
Dietrich Nikolaus Winkel (1777 – 28 September 1826) was the inventor of the first successful metronome. He also invented the componium, an "automatic instrument" that could make endless variations on a musical theme. Winkel was born in Lippstadt, settled in Amsterdam shortly after 1800, and in 1814, while experimenting with pendulums, he discovered that a pendulum weighted on both sides of the pivot could beat steady time, even for the slow tempos often used in European classical music. Winkel donated the first model of his musical 'chronometer', dated 27 November 1814, to the Hollandsch Instituut van Wetenschappen, Letterkunde en Schoone Kunsten in Amsterdam. Unfortunately he did not appropriately protect his idea, and by 1816, Johann Nepomuk Mälzel (sometimes 'Maelzel') added a Scale to the Instrument and patent A patent is a type of intellectual property that gives its owner the legal right to exclude others from making, using, or selling an invention for a limited ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amsterdam
Amsterdam ( , ; ; ) is the capital of the Netherlands, capital and Municipalities of the Netherlands, largest city of the Kingdom of the Netherlands. It has a population of 933,680 in June 2024 within the city proper, 1,457,018 in the City Region of Amsterdam, urban area and 2,480,394 in the Amsterdam metropolitan area, metropolitan area. Located in the Provinces of the Netherlands, Dutch province of North Holland, Amsterdam is colloquially referred to as the "Venice of the North", for its canals of Amsterdam, large number of canals, now a World Heritage Site, UNESCO World Heritage Site. Amsterdam was founded at the mouth of the Amstel River, which was dammed to control flooding. Originally a small fishing village in the 12th century, Amsterdam became a major world port during the Dutch Golden Age of the 17th century, when the Netherlands was an economic powerhouse. Amsterdam was the leading centre for finance and trade, as well as a hub of secular art production. In the 19th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pendulum
A pendulum is a device made of a weight suspended from a pivot so that it can swing freely. When a pendulum is displaced sideways from its resting, equilibrium position, it is subject to a restoring force due to gravity that will accelerate it back toward the equilibrium position. When released, the restoring force acting on the pendulum's mass causes it to oscillate about the equilibrium position, swinging back and forth. The time for one complete cycle, a left swing and a right swing, is called the period. The period depends on the length of the pendulum and also to a slight degree on the amplitude, the width of the pendulum's swing. Pendulums were widely used in early mechanical clocks for timekeeping. The regular motion of pendulums was used for timekeeping and was the world's most accurate timekeeping technology until the 1930s. The pendulum clock invented by Christiaan Huygens in 1656 became the world's standard timekeeper, used in homes and offices for 270 years, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Nepomuk Maelzel
image:Metronom Mälzel 1815.jpg, A metronome by Maelzel, Paris, 1815. Johann Nepomuk Maelzel (or Mälzel; August 15, 1772 – July 21, 1838) was a German inventor, engineer, and showman, best known for manufacturing a metronome and several music-playing automatons and displaying a fraudulent chess machine. He worked with Ludwig van Beethoven, Beethoven to compose a piece of music for one of his inventions. Life and work Maelzel was born in Regensburg. The son of an organ (music), organ builder, he received a comprehensive musical education.:de:Johann Nepomuk Mälzel, German Wikipedia He moved to Vienna in 1792. After several years' study and experiment, he produced an orchestrion instrument, which was publicly exhibited and afterward sold for 3,000 florins. In 1804, he invented the panharmonicon, an automaton able to play the musical instruments of a military band, powered by bellows and directed by revolving cylinders storing the notes. This attracted universal attention; the inven ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Maelzel
A metronome by Maelzel, Paris, 1815. Johann Nepomuk Maelzel (or Mälzel; August 15, 1772 – July 21, 1838) was a German inventor, engineer, and showman, best known for manufacturing a metronome and several music-playing automatons and displaying a fraudulent chess machine. He worked with Beethoven to compose a piece of music for one of his inventions. Life and work Maelzel was born in Regensburg. The son of an organ builder, he received a comprehensive musical education.German Wikipedia He moved to Vienna in 1792. After several years' study and experiment, he produced an orchestrion instrument, which was publicly exhibited and afterward sold for 3,000 florins. In 1804, he invented the panharmonicon, an automaton able to play the musical instruments of a military band, powered by bellows and directed by revolving cylinders storing the notes. This attracted universal attention; the inventor became noted throughout Europe, was appointed imperial court-mechanician at Vienna, and dr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tempo Markings
In musical terminology, tempo (Italian for 'time'; plural 'tempos', or from the Italian plural), measured in beats per minute, is the speed or pace of a given composition, and is often also an indication of the composition's character or atmosphere. In classical music, tempo is typically indicated with an instruction at the start of a piece (often using conventional Italian terms) and, if a specific metrical pace is desired, is usually measured in beats per minute (bpm or BPM). In modern classical compositions, a "metronome mark" in beats per minute, indicating only measured speed and not any form of expression, may supplement or replace the normal tempo marking, while in modern genres like electronic dance music, tempo will typically simply be stated in bpm. Tempo (the underlying pulse of the music) is one of the three factors that give a piece of music its texture. The others are meter, which is indicated by a time signature, and articulation, which determines how each note ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clockwork
Clockwork refers to the inner workings of either mechanical devices called clocks and watches (where it is also called the movement (clockwork), movement) or other mechanisms that work similarly, using a series of gears driven by a spring or weight. A clockwork mechanism is often powered by a clockwork motor, description of the clockwork motor in an antique phonograph consisting of a mainspring, a spiral torsion spring of metal ribbon. Energy is stored in the mainspring manually by ''winding it up'', turning a key attached to a ratchet (device), ratchet which twists the mainspring tighter. Then the force of the mainspring turns the clockwork gears, until the stored energy is used up. The adjectives ''wind-up'' and ''spring-powered'' refer to mainspring-powered clockwork devices, which include clocks and watches, kitchen timers, music boxes, and wind-up toys. History The earliest known example of a clockwork set-up is the Antikythera mechanism. This device functioned as a gear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Escapement
An escapement is a mechanical linkage in mechanical watches and clocks that gives impulses to the timekeeping element and periodically releases the gear train to move forward, advancing the clock's hands. The impulse action transfers energy to the clock's timekeeping element (usually a pendulum or balance wheel) to replace the energy lost to friction during its cycle and keep the timekeeper oscillating. The escapement is driven by force from a coiled spring (device), spring or a suspended weight, transmitted through the timepiece's gear train. Each swing of the pendulum or balance wheel releases a tooth of the escapement's ''escape wheel'', allowing the clock's gear train to advance or "escape" by a fixed amount. This regular periodic advancement moves the clock's hands forward at a steady rate. At the same time, the tooth gives the timekeeping element a push, before another tooth catches on the escapement's pallet, returning the escapement to its "locked" state. The sudden stoppi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Franz Metronome
Franz may refer to: People * Franz (given name) * Franz (surname) Places * Franz (crater), a lunar crater * Franz, Ontario, a railway junction and unorganized town in Canada * Franz Lake, in the state of Washington, United States – see Franz Lake National Wildlife Refuge Businesses * Franz Deuticke, a scientific publishing company based in Vienna, Austria * Franz Family Bakeries, a food processing company in Portland, Oregon * Franz-porcelains, a Taiwanese brand of pottery based in San Francisco Other uses * ''Franz'' (1971 film), a Belgian film * Franz (2025 film), an upcoming biographical film of Franz Kafka * Franz Lisp, a dialect of the Lisp programming language See also * Frantz (other) Frantz may refer to: * Frantz (given name), a masculine given name (and list of people with the given name) * Frantz (surname), a surname (and list of people with the surname) * Frantz (''Coppélia''), a character in ''Coppélia'' * ''Frantz'' ( ... * Franzen (disamb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Battery
An electric battery is a source of electric power consisting of one or more electrochemical cells with external connections for powering electrical devices. When a battery is supplying power, its positive Terminal (electronics), terminal is the cathode and its negative terminal is the anode. The terminal marked negative is the source of electrons. When a battery is connected to an external electric load, those negatively charged electrons flow through the circuit and reach the positive terminal, thus causing a redox reaction by attracting positively charged ions, or cations. Thus, higher energy reactants are converted to lower energy products, and the Gibbs free energy, free-energy difference is delivered to the external circuit as electrical energy. Historically the term "battery" specifically referred to a device composed of multiple cells; however, the usage has evolved to include devices composed of a single cell. Primary battery, Primary (single-use or "disposable") batter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oscillation
Oscillation is the repetitive or periodic variation, typically in time, of some measure about a central value (often a point of equilibrium) or between two or more different states. Familiar examples of oscillation include a swinging pendulum and alternating current. Oscillations can be used in physics to approximate complex interactions, such as those between atoms. Oscillations occur not only in mechanical systems but also in dynamic systems in virtually every area of science: for example the beating of the human heart (for circulation), business cycles in economics, predator–prey population cycles in ecology, geothermal geysers in geology, vibration of strings in guitar and other string instruments, periodic firing of nerve cells in the brain, and the periodic swelling of Cepheid variable stars in astronomy. The term ''vibration'' is precisely used to describe a mechanical oscillation. Oscillation, especially rapid oscillation, may be an undesirable phenomenon in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
