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Hertz horn
| Морской словарь |
The upper half of a naval contact mine is studded with hollow lead protuberances called hertz horns. when a ship’s hull hits one of these horns, its lead casing is crushed, cracking a glass vial filled with sulfuric acid. the acid runs down a tube into an empty lead-acid battery, forming the electrolyte and energizing the battery, which detonates the explosive.
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Hertz, английский
- The unit of measurement for frequency in a signal. 1 hertz = 1 cycle per second.
- Hertz is often referred to as "cycles per second". in the united states, the frequency or directional change of alternating current is usually 60 hertz.
- (abbrev. h) a term rapidly replacing cyclespersecond as an indication of frequency.
- The unit which expresses cycle frequency.
- A measure of frequency; one hertz equals one cycle per second; 60 cycle a.c. is 60 hertz a.c.
- An unit that measures the number of certain oscillations per second.
- H
- An unit that measures the number of certain oscillations per second. housings, environmental. usually refers to cameras’ and lenses containers and associated accessories, such as heaters, washers and wipers, to meet specific environmental conditions.
- A unit of frequency equal to one cycle per second.
- A unit of frequency, abbr. hz; one cycle per second.
- Герц; гц (единица частоты периодического процесса)
- Vibrations or cycles per second, abbreviated `hz`, a measurement of the frequency of a vibrating object. if you play the open a string on a concert-tuned guitar, the string`s tone is at 110hz, which is 110 vibrations per second. the human range of frequency perception, on average, is roughly 20 hz to 20,000 hz.
- A cycle or oscillation per second. a second hand on a standard analog clock ticks at 1 hertz. the clock on most computers is currently on the order of 1 gigahertz.
- One cycle per second; a unit for frequency. abbreviation is hz.
Hertz, английский
Hertz, английский
Hertz, испанский
Abreviado como hz. unidad de frecuencia igual a un ciclo por segundo. en castellano hercio.
Hertz, французский
Unité de mesure de la fréquence des sons. Ça correspond au nombre de cycles par seconde d'une onde sonore. l'oreille humaine est sensible aux sons variant approximativement de 20 hertz (son très grave) à 20 000
Hertz (hz), английский
- The number of variations per second (e.g. picture frames, alternating of the current, etc).
- Unit of frequency in the international system of units (si), abbreviated hz; replaces cps for cycles per second.
- Unit of measurement for frequency, equal to cycles per second—see ac (alternating current). common household mains power is normally 50hz, or 50 cycles per second. horizontal-axis wind turbine: the most common form of wind turbine, consisting of two or three (but up to six or more in some designs) airfoil-style blades attached to a central hub which drives a generator. the axis, or main shaft of the machine is horizontal, or parallel to the earth’s surface. i
Hertz contact stress, английский
Stress (psi) measured along a narrow band of contact between two gear teeth under load; based on formulas devised by hertz. momentary stresses exceeding 200,000 psi are not uncommon in heavily loaded gears. also may occur at contact points in rolling element bearings.
Hertzian radiation, английский
Электромагнитное излучение
Hertzian radiator, английский
Электромагнитный излучатель
Horn, английский
- Африканский рог {назв. терр. северо-восточной африки, выступающей в виде рога в индийский ок.)
- A sound signal which uses electricity or compressed air to vibrate a disc diaphragm.
- 1. (in humans) tissue which grows out of an organ 2. (in humans) one of the h-shaped limbs of grey matter seen in a crosssection of the spinal cord 3. (in humans) an extension of the pulp chamber of a tooth towards the cusp syndrome horner’s syndrome / h? n?z s?ndr??m/
- Сирена
- The arm of a cleat or kevel.
- Large, pointed protrusion of rock that can be slung. typically also makes a good hand hold. see bollard, chicken head.
- The part of a western saddle that extends up from the pommel (front), around which a rope may be wrapped and secured.
- A part of the saddle
Horn, шведский
Horn, немецкий
Horn, английский
Horn (2), английский
The part of a pantograph which curves down at each end of the collector head and which fractures if struck at speed to give, in the most modern examples, a detection signal to lower the pantograph.
Horn (3), английский
Part of an axlebox guidance assembly mounted on the exterior of a bogie frame.
Horn clause, английский
- Хорновская формула; хорновское выражение; хорновское предложение; дизъюнкт хорна horner`s method схема горнера
- Logical clauses that have no more than one positive literal. there are three kinds of clauses: assertions, conditional assertions, and denials. see also: logic programming.
Horn coal, английский
Horn coral, английский
Horn core, английский
The horn core of a propositional formula is the weakened horn formula implying that formula. it is also called the greatest horn lower bound. the horn core does not have to be unique, as there can be many inequivalent horn formulae implying a given formula. see also: horn envelope.
Horn envelope, английский
For a given propositional formula x, its horn envelope is the strongest horn formula implied by x. it is also known as the least horn upper bound. the approximation of a formula by its horn envelope and horn core can support rapid approximate reasoning. see also: horn core.
Electrolyte, английский
- A chemical solution which can conduct electricity
- A water solution of salts used to replace or reinforce the normal salts of the blood.
- A nonmetallic (liquid or solid) conductor that carries current by the movement of ions (instead of electrons) with the liberation of matter at the electrodes of an electrochemical cell.
- The connecting medium, often a fluid, that allows electrolysis to occur. all common batteries contain an electrolyte, such as the sulphuric acid used in lead-acid batteries.
- A nonmetallic (liquid or solid) conductor that carries current by the movement
- The fluid in automotive batteries, a mixture of sulfuric acid and water.
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Hidden harbor, английский
One where the outer points overlap so that the shore line appears continuous from seaward. high-and-dry: above the high-water mark.
Driven back with repeated wounds, английский
Seated in his cabin he was stabbed by his cockswain and three other mutineers, and forced out of the cabin windows. the mutineers then murdered the other three lieutenants; the purser, surgeon, and captain’s clerk; one of the midshipmen, the boatswain, and the lieutenant of marines, “cutting and mangling their victims in the most cruel and barbarous manner.” it was one of the bloodiest and most violent mutinies in royal navy history. the mutineers sailed for la guaira, venezuela, where on september 27 they handed the ship over to the spanish, claiming they had set the officers adrift in the jollyboat, but the truth soon emerged. rear-admiral henry harvey, commander-in-chief, leeward islands, fully explained the ghastly circumstances in which the ship had been taken, but the spanish ignored him and fitted hermione for sea as a spanish national frigate named santa cecilia. two years later she was recaptured by a cutting-out expedition and remained in british service until 1805. eventually, 33 of the mutineers were captured and 24 of them were hanged. see also great mutiny.
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