ground detector
111Fire hydrant — in Charlottesville, Virginia, USA A fire hydrant (also known colloquially as a fire plug in the United States or as a johnny pump in New York City, because the firemen of the late 19th century were called Johnnies[ …
112Pioneer 6, 7, 8, and 9 — Infobox Spacecraft Caption = Artists conception of the Pioneer 6 9 spacecraft Name = Pioneer 6, 7, 8, and 9 Mass = 146, 138, 146, 147 kg Organization = NASA Launch Vehicle = Delta E Launch = 16 December 1965 at 07:31:00 UTC 17 August 1966 at… …
113Video camera tube — In older video cameras, before the mid to late 1980s, a video camera tube or pickup tube was used instead of a charge coupled device (CCD) for converting an optical image into an electrical signal. Several types were in use from the 1930s to the… …
114Wire chamber — Drift chamber at the Musée des Arts et Métiers in Paris …
115Logarithmic video amplifier — A logarithmic video amplifier or LVA is typically part of radar and electronic countermeasures microwave systems and sonar navigation systems, used to convert a very large dynamic range input power to an output voltage that increases… …
116Beagle — Infobox Dogbreed image caption = A tricolour Beagle name = Beagle altname = English Beagle [ [http://www.trainpetdog.com/Beagle/about beagle.html Beagle: Origin, Temperament, Training, Exercise ] ] country = England fcigroup = 6 fcisection = 1… …
117Magnetic circular dichroism — (MCD) is the differential absorption of left and right circularly polarized (LCP and RCP) light, induced in a sample by a strong magnetic field oriented parallel to the direction of light propagation. MCD measurements can detect transitions which …
118Optical telescope — Eight Inch refracting telescope (Chabot Space and Science Center) An optical telescope is a telescope which is used to gather and focus light mainly from the visible part of the electromagnetic spectrum for directly viewing a magnified image for… …
119Glossary of firefighting equipment — Note: This list is incomplete. You can help Wikipedia by [http://en.wikipedia.org/w/index.php?title=Glossary of firefighting equipment action=edit adding to it] . 0 9 * 1 3/4 inch hose: see attack hose * 2 1/2 inch hose: see attack hose , supply… …
120Operational amplifier applications — This article illustrates some typical applications of operational amplifiers. A simplified schematic notation is used, and the reader is reminded that many details such as device selection and power supply connections are not shown. Contents 1… …
