Define whisker. whisker synonyms, whisker pronunciation, whisker translation, English dictionary definition of whisker. n. 1. a. whiskers The hair on a man's cheeks and chin. b. A single hair of a beard or mustache. 2. One of the ...
From Wikimedia Commons, the free media repository Jump to navigation Jump to search 's-whisker detector Upload media Wikipedia Subclass of diode Authority control Q1851257 GND ID: 4176378-6 BabelNet ID: 00024217n ...
The first practical application of semiconductors in electronics was the 1904 development of the 's-whisker detector, a primitive semiconductor diode used in early radio receivers. Developments in quantum physics in turn led to the development of the transistor in 1947, [2] the integrated circuit in 1958, and the MOSFET …
The Laser Interferometer Gravitational-Wave Observatory (LIGO) is a large-scale physics observatory which detects cosmic gravitational waves co-founded by Scottish physicist Ronald Drever.[1] They were first funded by the National Science Foundation (NSF) and were conceived, built and are operated by Caltech and MIT.[2][3] The NSF has funded ...
whisker synonyms, whisker pronunciation, whisker translation, English dictionary definition of whisker. A fine piece of wire mounted so that it could be moved over the surface of the crystal used in a Crystal
A Geiger counter (sometimes called Geiger-Müller counter) is an instrument that measures ionizing radiation such as alpha particles, beta particles, or gamma rays. It is best known as a hand held radiation survey instrument, but it can also be used as a bench instrument or permanently installed. The original operating principle was discovered ...
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A smoke sensor or smoke detector is a device that can detect smoke, which may be an indicator of a fire. There are two basic systems: Simple, standalone sensors usually make a sound or flash a light when they detect smoke. More sophisticated sensors usually send a signal to an fire alarm panel, or system. Most smoke detectors use either an ...
From Wikipedia, the free encyclopedia Jump to: navigation, search Signal goes from left to right. Right is a filter circuit. In the middle is the charge pump. Left are three phase detectors. From top to bottom: The Gilbert cell works for ...
The 's whisker did the trick for Cardiff anglers Roger Martin and Dave Howells as they retained one fish and returned seven and for New Inn angler Paul Elsworthy with a matching catch; but it was a Diawl Bach pattern that tempted the seven hooked by Bonvilston fly fisherman Ted Lyons.
Precision 's whisker detector with iron pyrite crystal, used in large wireless stations, early 1900s. The crystal is inside the metal capsule under the vertical needle "whisker" (right) . The leaf springs and thumbscrew allowed fine adjustment of the pressure of the needle on the crystal.
Metal whiskering is a phenomenon which occurs in electrical devices when metals form long whisker-like projections over time. Tin whiskers were noticed and documented in the vacuum tube era of electronics early in the 20th century in equipment that used pure, or almost pure, tin solder in their production. It was noticed that small metal hairs ...
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-: word element [Gr.], down; lower; under; against; along with; very.
The detector was a whisker detector, consisting of a piece of galena with a thin wire in contact with it on a part of the crystal, making a diode contact As a crystal radio has no power supply, the sound power produced by the earphone comes solely from the transmitter of the radio station being received, via the radio waves captured by the …
Zincite is the mineral form of zinc oxide (ZnO). Its crystal form is rare in nature; a notable exception to this is at the Franklin and Sterling Hill Mines in New Jersey, an area also famed for its many fluorescent minerals. It has a hexagonal crystal structure and a color that depends on the presence of impurities. The zincite found at the ...
's-whisker detector synonyms, 's-whisker detector pronunciation, 's-whisker detector translation, English dictionary definition of 's-whisker detector. n 1. a pointed wire used to make contact with
In radio, a detector is a device or circuit that extracts information from a modulated radio frequency current or voltage. The term dates from the first three decades of radio (1888-1918). Unlike modern radio stations which transmit sound (an audio signal) on an uninterrupted carrier wave, early radio stations transmitted information by ...
From Wikipedia, the free encyclopedia A 's-whisker detector (sometimes called a crystal detector) is an antique electronic component consisting of a thin wirethat lightly touches a crystal of semiconducting mineral its name ...
's-whisker detector synonyms, antonyms, and related words in the Free Thesaurus
Looking for whisker radio? Find out information about whisker radio. A radio receiver having a crystal detector stage for demodulation of the received signals, but no amplifier stages Explanation of whisker radio
Verifiable Name: Crystal Detector January 22, 2018 - "'s whisker" refers ONLY to the fine wire or needle that contacts the crystal. The entire device, which this article is about, is a crystal detector. Publications ...
Define detector. detector synonyms, detector pronunciation, detector translation, English dictionary definition of detector. n. One that detects, especially a mechanical, electrical, or chemical device that automatically identifies and ...
A whisker is a long, thick hair around the mouth of some animals, mostly mammals such as cats and mice, that the animal uses to feel its surroundings. Some animals, such as cats, also have whiskers above their eyes and on the backs of their legs. Unlike other hair, whiskers should never be cut or trimmed, as this can confuse the animal ...
A foxhole radio is a makeshift radio that was built by soldiers in World War II for entertainment, to listen to local radio stations. They were first reported at the Battle of Anzio, Italy, spreading later across the European and Pacific theaters. The foxhole radio was a crude crystal radio which used a safety razor blade as a radio wave ...
Whisker (disambiguation), Whisker (horse), Whisker (metallurgy), Whisker: Wikipedia, the Free Encyclopedia [home, info] Whisker : Online Plain Text English Dictionary [ home, info ] whisker : Webster's Revised Unabridged, 1913 Edition [ home, info ]
Most fluorescence microscopes, especially those used in the life sciences, are of the epifluorescence design shown in the diagram. Light of the excitation wavelength illuminates the specimen through the objective lens. The fluorescence emitted by the specimen is focused onto the detector. The dichroic beamsplitter acts as a …
metal whiskers Microscopic filaments of metal such as zinc and tin that "grow" out of coated metal surfaces. In particular, zinc whiskers can be dislodged from the metal tracks of raised flooring, migrate via heating and air conditioning ducts into electronic equipment and cause short circuits if they settle onto circuit board surfaces. ...
A crystal detector is an obsolete electronic component used in some early 20th century radio receivers that consists of a piece of crystalline mineral which rectifies the alternating current radio signal and was employed as a detector (demodulator) to extract the audio modulation to produce the sound in the earphones.