A tuning fork is an acoustic resonator in the form of a two-pronged fork with the prongs (tines) formed from a U-shaped bar of elastic metal. It resonates at a specific constant pitch when set vibrating by striking it against a surface or with an object, and emits a pure musical tone once the high overtones fade out. A tuning fork's pitch depends on the length and mass of the two prongs. They are traditional sources of standard pitch for tuning musical instruments.
Catfish are a diverse group of ray-finned fish. Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the three largest species alive, the Mekong giant catfish from Southeast Asia, the wels catfish of Eurasia, and the piraíba of South America, to detritivores, and even to a tiny parasitic species commonly called the candiru, Vandellia cirrhosa. Neither the armour-plated types nor the naked types have scales. Despite their name, not all catfish have prominent barbels or "whiskers". Members of the Siluriformes order are defined by features of the skull and swimbladder. Catfish are of considerable commercial importance; many of the larger species are farmed or fished for food. Many of the smaller species, particularly the genus Corydoras, are important in the aquarium hobby. Many catfish are nocturnal, but others are crepuscular or diurnal.
East Grand Forks is a city in Polk County, Minnesota, United States. The population was 9,176 at the 2020 Census, making it the largest community in Polk County.
An electric piano is a musical instrument that has a piano-style musical keyboard, where sound is produced by means of mechanical hammers striking metal strings or reeds or wire tines, which leads to vibrations which are then converted into electrical signals by pickups. The pickups are connected to an instrument amplifier and loudspeaker to reinforce the sound sufficiently for the performer and audience to hear. Unlike a synthesizer, the electric piano is not an electronic instrument. Instead, it is an electro-mechanical instrument. Some early electric pianos used lengths of wire to produce the tone, like a traditional piano. Smaller electric pianos used short slivers of steel to produce the tone. The earliest electric pianos were invented in the late 1920s; the 1929 Neo-Bechstein electric grand piano was among the first. Probably the earliest stringless model was Lloyd Loar's Vivi-Tone Clavier. A few other noteworthy producers of electric pianos include Baldwin Piano and Organ Company, and the Wurlitzer Company.
A sound board, or soundboard, is the surface of a string instrument that the strings vibrate against, usually via some sort of bridge. Pianos, guitars, banjos, and many other stringed instruments incorporate soundboards. The resonant properties of the sound board and the interior of the instrument greatly increase the loudness of the vibrating strings. "The soundboard is probably the most important element of a guitar in terms of its influence on the quality of the instrument's tone [timbre]."
When the [guitar] top vibrates, it generates sound waves, much like a loudspeaker. As the soundboard moves forward, the air that is in front of it is compressed and it moves away from the guitar. As the soundboard moves back, the pressure on the air in front of the guitar is reduced. This is called a "rarefaction," and air rushes in to fill the rarefied region. Through this process, an alternating series of compression and rarefaction pulses travel away from the soundboard, creating sound waves.
Bachi are straight, wooden sticks used on Japanese taiko drums, and also the plectrum for stringed instruments of Japanese origin such as the shamisen and biwa.
The morsing is an instrument similar to the Jew's harp, mainly used in Rajasthan, in the Carnatic music of South India, and in Sindh, Pakistan. It can be categorized under lamellophones, which is a sub-category of plucked idiophones. The instrument consists of a metal ring in the shape of a horseshoe with two parallel forks which form the frame, and a metal tongue in the middle, between the forks, fixed to the ring at one end and free to vibrate at the other. The metal tongue, also called the trigger, is bent at the free end in a plane perpendicular to the circular ring so that it can be struck and made to vibrate.
The channel catfish is North America's most numerous catfish species. It is the official fish of Kansas, Missouri, Nebraska, and Tennessee, and is informally referred to as a "channel cat". In the United States, they are the most fished catfish species with around 8 million anglers targeting them per year. They also have very few teeth and swallow food whole. The popularity of channel catfish for food has contributed to the rapid expansion of aquaculture of this species in the United States. It has also been widely introduced in Europe, Asia and South America, and it is legally considered an invasive species in many countries.
A klopotec is a wooden mechanical device on a high wooden pole, similar to a windmill. It is used as a bird scarer in the vineyards of traditional wine-growing landscapes of Slovenia, Austria, and Croatia. It is one of the symbols of Slovenia and Styria.
The khim is a stringed musical instrument derived from the Mesopotamian or Persian Santur. It is similar to the Hammered Dulcimer or Cimbalom. This khim was introduced to Thailand from China, where a similar instrument is called yangqin, and introduced to Laos and Cambodia from Thailand later. It is played with two flexible bamboo sticks with soft leather at the tips to produce a soft tone. This instrument can be played by either sitting down on the floor with the khim on the floor, or by sitting on a chair or standing while the khim is on a stand. The khim produces a bright and expressive sound when played. It is made of wood, with brass strings that are laid across the instrument. The Australian-born musician and vocal artist Lisa Gerrard specialises in the use of a khim hammered dulcimer, featuring its music on several albums and performing with the instrument live on tour.
The wels catfish, also called sheatfish or just wels, is a large species of catfish native to wide areas of central, southern, and eastern Europe, in the basins of the Baltic, Black and Caspian Seas. It has been introduced to Western Europe as a prized sport fish and is now found from the United Kingdom east to Kazakhstan and China and south to Greece and Turkey. The wels is the largest freshwater fish in Europe. The longest wels on record was an unweighed specimen from the Po river in Italy, measuring 2.85 m (9.4 ft), captured in 2023.
A garden tool is any one of many tools made for gardening and landscaping, which overlap with the range of tools made for agriculture and horticulture. Garden tools can be divided into hand tools and power tools.
Sympathetic resonance or sympathetic vibration is a harmonic phenomenon wherein a passive string or vibratory body responds to external vibrations to which it has a harmonic likeness. The classic example is demonstrated with two similarly-tuned tuning forks. When one fork is struck and held near the other, vibrations are induced in the unstruck fork, even though there is no physical contact between them. In similar fashion, strings will respond to the vibrations of a tuning fork when sufficient harmonic relations exist between them. The effect is most noticeable when the two bodies are tuned in unison or an octave apart, as there is the greatest similarity in vibrational frequency. Sympathetic resonance is an example of injection locking occurring between coupled oscillators, in this case coupled through vibrating air. In musical instruments, sympathetic resonance can produce both desirable and undesirable effects.
Clonk is a single player and multiplayer video game series. The games feature a mix of the action, real-time strategy and platform game genres. Developed between 1994 and 2014 by RedWolf Design, the games of the series were originally released as shareware and became freeware and later open source software around 2008 and 2014. The game's community has since developed the series under the name OpenClonk. The series was compared and described as a mixture of Worms, The Settlers, Tetris, Lemmings and Minecraft. The game was noted for the easy game "extension" mechanic with an integrated editor and developer mode, which allows experienced players to create their own modifications directly into the game.
A bridge is a device that supports the strings on a stringed musical instrument and transmits the vibration of those strings to another structural component of the instrument—typically a soundboard, such as the top of a guitar or violin—which transfers the sound to the surrounding air. Depending on the instrument, the bridge may be made of carved wood, metal or other materials. The bridge supports the strings and holds them over the body of the instrument under tension.
Fork Factory Brook is a 135-acre historic site, open space reserve, and agricultural reserve located in Medfield, Massachusetts. The reserve, managed by the land conservation non-profit organization The Trustees of Reservations, is notable for its wetlands, ledges, 300-year-old hayfields, and ruins of a 19th-century pitchfork mill for which the property is named. Fork Factory Brook offers 1.5 miles (2.4 km) of trails and former woods roads available for hiking, horseback riding, mountain biking, and cross country skiing. The property is part of a larger area of protected open space including the abutting Rocky Woods preserve, also managed by The Trustees of Reservations.
The eleaotua is a musical bow played in Guam, also spelled eluaotuas, eleaotuchan, and elimau-tuyan. This gourd-resonating musical bow likely has common roots with the Brazilian berimbau, due to constant trade between Asia and South America in the nineteenth century, during which the instrument may have been introduced to the Chamorro people. The instrument also resembles various zither/boat lutes found throughout Southeast Asia called kutiyapi.
Arty Ash, real name Arthur Richard Dodge was a British actor. He is well known for appearing with Leslie Sarony in Clonk! (1928), a short comedy film made in the Phonofilm sound-on-film process.
Sweet Exorcist were a British music duo consisting of Richard Barratt and Richard H. Kirk. They were among the flagship bleep techno acts on Warp Records in the late 1980s.
OpenClonk is a free and open-source 2D multiplayer action game, in which the player controls small humanoids called "clonks". The main mechanics of the game include mining, settling, player vs player combat, and tactical gameplay. The game features a single-player and multiplayer mode, and supports cross-platform play across Microsoft Windows, Linux, and MacOS.
