A coppers hell closed at one end and containing a charge of detonating compound, which is ignited by electric current or the spark of a fuse; used for detonating high explosives.
Related Terms |
SEEBECK EFFECT
When two different adjacent metals are heated, an electric current is generated between the metals.
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DIELECTRIC STRENGTH
A measure of the ability of an insulating material to withstand electric stress (voltage) without failure. Fluids with high dielectric strength (usually expressed in volts or kilovolts) are good electrical insulators. (ASTM Designation D 877.)
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AMMETER
An instrument for measuring the magnitude of electric current flow.
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ARC
A flash, caused by an electric current ionizing a gas or vapor.
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CARBON RESIDUE
Coked material remaining after an oil has been exposed to high temperatures under controlled conditions.
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ALIVE
A term referring to a circuit in which a current is flowing. Also referred to as live.
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REFRIGERATOR
A device to transfer heat from a low temperature to a high temperature medium.
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ADSORPTION
Adhesion of the molecules of gases, liquids, or dissolved substances to a solid surface, resulting in relatively high concentration of the molecules at the place of contact; e.g. the plating out of an anti-wear additive on metal surfaces.
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ALTERNATOR
A device which converts mechanical energy, into alternating current.
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HALF-TIDE BASIN
A lock of very large size and usually of irregular shape, the gates of which are kept open for several hours after high tide so that vessels may enter as long as there is sufficient depth over the sill. Vessels remain in the half-tide basin until the ensuing flood tide before they may pass through the gate to the inner harbor. If entry to the inner harbor is required before this time, water must be admitted to the half-tide basin from some external source.
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