Bore (engine)

Bore, is a term used in describing a part of a piston engine. Also known as 'cylinder bore' it also represents the size, in terms of diameter, of the cylinder in which a piston travels. The value of a cylinders bore, and stroke, is used to establish the displacement of an engine.

The term "bore" can also be applied to the bore of a locomotive cylinder or steam engine pistons.

References

See also

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Engine

An engine or motor is a machine designed to convert one form of energy into mechanical energy.Heat engines, including internal combustion engines and external combustion engines (such as steam engines), burn a fuel to create heat, which then creates a force. Electric motors convert electrical energy into mechanical motion; pneumatic motors use compressed air and others—such as clockwork motors in wind-up toys—use elastic energy. In biological systems, molecular motors, like myosins in muscles, use chemical energy to create forces and eventually motion.

Terminology

The word "engine" derives from Old French engin, from the Latin ingenium–the root of the word ingenious. Pre-industrial weapons of war, such as catapults, trebuchets and battering rams, were called "siege engines", and knowledge of how to construct them was often treated as a military secret. The word "gin", as in "cotton gin", is short for "engine". Most mechanical devices invented during the industrial revolution were described as engines—the steam engine being a notable example.

Engine (Jinn album)

Engine (エンジン, Enjinn) is Jinn's second mini album, released on July 14, 2010.

Track listing

References

Ray Alder

Ray Alder (born as Ray Balderrama on August 20, 1967) has been the lead vocalist of the progressive metal band Fates Warning since their 1988 release No Exit.

He has released two albums Engine in 1999 and Superholic in 2002 with Engine.

He also sang on Redemption's albums The Origins of Ruin, The Fullness of Time, Snowfall on Judgment Day and This Mortal Coil, having produced their debut self-titled release in 2002.

He has recently worked with underground emcee/producer Necro for his album entitled Death Rap.

Ray Alder was featured at a show with the band Dream Theater at Los Angeles, California on May 18, 1998.

On March 16, 2010, Fates Warning released a deluxe edition of their 1991 album, Parallels. This edition has been fully re-mastered and contains over three hours of music and live footage. Parallels was one of Fates Warning's most successful releases due to the commercial success of the singles Eye To Eye, Point Of View and We Only Say Goodbye. According to Metal Blade records (2010) Parallels has proven to be one of the most influential albums in the prog and metal genres, despite its hotly debated status among fans as a "commercial" sounding album. Commenting on the album, Ray Alder is quoted on the "Metal Blade Records Website".  as follows, "I think it's one of the best albums we ever put out and I'm happy that fans have the chance to take a second look at this important record. The lineup, the songs and the cover art all came together to make a great package when originally recorded and the bonus DVD really adds a fresh perspective to the album."

Bore (wind instruments)

The bore of a wind instrument is its interior chamber that defines a flow path through which air travels and is set into vibration to produce sounds. The shape of the bore has a strong influence on the instrument's timbre.

Bore shapes

The cone and the cylinder are the two idealized shapes used to describe the bores of wind instruments. These shapes affect the harmonics associated with the timbre of the instrument. The conical bore has a timbre composed of odd and even harmonics, while the closed cylindrical bore or closed tube is composed primarily of odd harmonics. The harmonic characteristics of instruments such as the clarinet (closed cylinder) are more variable than a given waveform and bore alone is not the only determining factor. The timbre of a clarinet, for instance, mainly depends on the construction of the mouthpiece and the properties of the reed. Furthermore, minute changes in air pressure and pressure applied to the reed (vibrato, slurs) modulate the tone.

Bore (woreda)

Bore is one of the woredas in the Oromia Region of Ethiopia. Part of the Guji Zone, Bore is bordered on the south by Ana Sora, on the west by the Uraga, and on the north and east by the Southern Nations, Nationalities, and Peoples Region. The largest town in Bore is Bore.

Overview

The altitude of this woreda ranges from 1800 to 2900 metres above sea level; Mount Sutaa being the highest mountain in the district is only 6 km from Bore town. Main rivers include the Gannaalee and Buqqisaa,. Before the split, notable local landmark is the Me'ee Bokkoo, next the main road to Boonbaa. This is an open field kept clear of large trees but covered with grass, and except for grazing cattle no agricultural activity is permitted there. It is considered a sacred place to the local Oromo, for it is designated where the traditional leader known as Abba Gadaa convenes the tribal assembly. A survey of the land in this woreda shows that 29% is arable or cultivable (20.9% was under annual crops), 33% pasture, 30% forest, and the remaining 8% is considered swampy, degraded or otherwise unusable. Barley, wheat, corn, teff, and horse bean are important crops. False banana, " Weesii" is widely planted and used in every day consumption.Coffee is also an important cash crop; between 20 and 50 square km are planted with it.

.410 bore

.410 bore, commonly incorrectly named the .410 gauge, is the smallest gauge of shotgun shell commonly available. It has similar base dimensions to the .45 Colt revolver cartridge, though the .410 is significantly longer, up to 3 inches (76 mm), allowing many single-shot firearms and some revolvers chambered in that caliber to fire shot without any modifications.

Origin

Lancasters pattern centrefire and pinfire .410 shot cartridges first appear in Eley Brothers Ltd. advertising flysheets in 1857. By 1874 Eleys were advertising modern centrefire .410 cartridges. It appears to have become popular around 1900, although it was recommended as "suited to the requirements of naturalists, and for such weapons as walking-stick guns", presumably for self-defense, in 1892 by W. W. Greener. The first ammunition was two inches (50.8 mm) long, compared with the modern 2.5 and 3.0-inch (76 mm) sizes.

Uses

As the smallest of traditional shotgun sizes, .410 bore guns throw the least weight of shot, but are very easy to handle. This results in a very low recoil, so the .410 is often chosen for young shooters, who might have problems with a heavier recoiling shotgun. Some shooters, however, discourage the use of the .410 as an introduction for young shooters, both because the negligible recoil does not familiarize the beginners with the heavier recoil of larger cartridges such as the 12 gauge, and because of the difficulty in hitting moving targets with the small charge of shot used by the .410. Others believe starting young/new/small shooters with large recoiling guns will cause a habit of flinching and negatively affect their accuracy.