The primary benefits over rifled barrels is reduced barrel wear, longer ranges that can be achieved ( due to the reduced loss of energy to friction and gas escaping around the projectile via the rifling ) and larger explosive cores for a given caliber artillery due to less metal needing to be used to form the case of the projectile because of less force applied to the shell from the non-rifled sides of the barrel of smooth bore guns.

For example, bacteria catalyse the breakdown of the mineral pyrite ( FeS < sub > 2 </ sub >) by oxidising the sulfur and metal ( in this case ferrous iron, ( Fe < sup > 2 +</ sup >)) using oxygen.

The lower cost of bacterial leaching in this case outweighs the time it takes to extract the metal.

Although the element is only mildly toxic, it is a hazardous material as a metal and its radioisotopes present a high health risk in case of radiation leaks.

Peddle packaged his single-board computer design in a metal case, along with a full-travel QWERTY keyboard, monochrome monitor, and tape recorder for program and data storage, to produce the Commodore PET ( Personal Electronic Transactor ).

This accident, as well as a similar accident that led to the death of Russell Phillips at Charlote, led NASCAR to mandate the " Earnhardt Bar ", a metal brace located in the center of the windshield that reinforces the roof in case of a similar crash.

This however was not the case since many of the key members of the black metal scene were present at the show, including Mayhem's guitar player, who was not only at the concert but also working as a DJ.

Depending upon the process, the electrode is either consumable, in the case of gas metal arc welding or shielded metal arc welding, or non-consumable, such as in gas tungsten arc welding.

The 1988 British made-for-TV movie More Bad News was another mocumentary about a rock band, in this case an incompetent heavy metal band.

Even a vacuum can suffer a sort of breakdown, but in this case the breakdown or vacuum arc involves charges ejected from the surface of metal electrodes rather than produced by the vacuum itself.

The Gospels were illustrated in an insular style containing a fusion of Celtic, Germanic and Roman elements ; they were probably originally covered with a fine metal case made by a hermit called Billfrith.

Chromocene can be prepared from chromium hexacarbonyl by direct reaction with cyclopentadiene in the presence of diethylamine ; in this case, the formal deprotonation of the cyclopentadiene is followed by reduction of the resulting protons to hydrogen gas, facilitating the oxidation of the metal centre.

In the case of a vacuum cleaner, these ports would be the three metal prongs in the plug.

The organic ligands often bind the metal through a heteroatom such as oxygen or nitrogen, in which case such compounds are considered coordination compounds.

Primarily ionic metal-carbon bonds are encountered either when the metal is very electropositive ( as in the case of Group 1 or Group 2 metals ) or when the carbon-containing ligand exists as a stable carbanion.

A Collector's Edition, packaged in a metal case, was released at the same time.

In the case of a metal, only a small amount of energy is needed for the electrons to find other unoccupied states to move into, and hence for current to flow.

In the simplest case, a switch has two conductive pieces, often metal, called contacts, connected to an external circuit, that touch to complete ( make ) the circuit, and separate to open ( break ) the circuit.

A and B can also be the same metal under different charges, such as the case in Fe < sub > 3 </ sub > O < sub > 4 </ sub > ( as Fe < sup > 2 +</ sup > Fe < sub > 2 </ sub >< sup > 3 +</ sup > O < sub > 4 </ sub >< sup > 2 -</ sup >).

The metal case was normally connected to the negative connection, an arrangement that caused numerous electric shocks.

Power and signal grounds often get connected, usually through the metal case of the equipment.

This is the case in ordinary metallic wires and in metal film resistors, where shot noise is almost completely cancelled due to this anti-correlation between the motion of individual electrons, acting on each other through the coulomb force.

The inner surfaces may be polished metal, or may be covered with a multilayer film that guides light by Bragg reflection ( this is a special case of a photonic-crystal fiber ).

The bain-marie comes in a wide variety of shapes, sizes, and types, but traditionally is a wide, cylindrical, usually metal container made of three or four basic parts: a handle, an outer ( or lower ) container that holds the working liquid, an inner ( or upper ), smaller container that fits inside the outer one and which holds the material to be heated or cooked, and sometimes a base underneath.

In a common design, a metal horseshoe holds a flat wooden shoe in place.

A mandolin typically has a hollow wooden body with a tailpiece that holds one end of the strings, a floating bridge, a neck with a flat ( or slight radius ) fretted fingerboard, a nut, and mechanical tuning machines to accommodate metal strings.

Copper is a traditional metal, and is still preferred, for etching, as it bites evenly, holds texture well, and does not distort the colour of the ink when wiped.

Soon the Christian metal bands became controversial for their beliefs and often evangelistic goals in the metal music scene, which typically holds individualism in particularly high esteem.

* A cylindrical, usually solid metal object which commonly goes through and holds other rotating items ( e. g. pulleys, wheels, gears, bearings, sleeves ) and which may also transmit rotational forces.

The pilot holds a handle with a twisted flat piece of metal on bearings in one hand, and a " bobbin " in the other.

* The metal ring which holds a chisel blade's tang to the handle

* The semi-circular metal band that holds the fibers in place on the Frogs of bows for violin family instruments

A film hanger is a metal frame with perforated edges which holds a single sheet or multiple sheets ( usually four ) of film.

An electric version of the stylus has been commercially available since the 1970s, with the cone becoming a metal reservoir which keeps the melted beeswax at a constant temperature and holds a much larger amount than a traditional stylus.

SAB also owns a hop production company ( The South African Breweries Hop Farms ), a barley farming company ( The South African Breweries Barley Farms ), a barley malting company ( The South African Breweries Maltings ) and holds a 60 per cent stake in the metal crown manufacturer, Coleus Packaging.

The resulting expelled juice may be further treated by enzymatic and centrifugal clarification to remove the starch and pectin, which holds fine particulate in suspension, and then pasteurized for packaging in glass, metal or aseptic processing system containers, or further treated by dehydration processes to a concentrate.

In the other hand, one holds a stick ( baqueta or " vaqueta " – usually wooden, very rarely made of metal ) and a shaker ( caxixi ).

Like his father before him he holds the office of Lancre blacksmith, which brings with it the obligation to shoe anything, and the concomitant ability to shoe anything: he has shod an ant, a unicorn, and ( at regular intervals and with specially reserved metal ) Death's horse Binky.

Rather than being pressed to a fret on the neck, the player's left hand holds a polished metal bar called the steel or " tone bar " on the strings.

Unlike a conventional guitar, the strings are not pressed to a fret when sounding a note ; rather, the player holds a metal slide called steel ( or tone bar ) in the left hand, which is moved along the strings to change the instrument's pitch while the right hand plucks or picks the strings.

The percussionist holds the metal wire in one hand and strikes the ball ( usually against the palm of their other hand ).

Caseless ammunition eliminates the metal case that typically holds the primer or igniter and the powder charge ( smokeless powder ) that propels the bullet.

The infuser is generally a small mesh or perforated metal container or covered spoon that holds tea leaves, in varying sizes to steep single or multiple servings at once.

* A Cage whisk, sometimes referred to as a ball whisk, is a balloon whisk with a small spherical cage trapped inside of if, which in turn holds a metal ball.

John holds his own with his advanced weaponry, but is unable to stop the Terminator until it is drenched in molten metal and then liquid nitrogen, freezing it temporarily.