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- Periscope abstract "A periscope is an instrument for observation over, around or through an object, obstacle or condition that prevents direct line-of-sight observation from an observer's current position.In its simplest form, it consists of an outer case with mirrors at each end set parallel to each other at a 45-degree angle.This form of periscope, with the addition of two simple lenses, served for observation purposes in the trenches during World War I. Military personnel also use periscopes in some gun turrets and in armoured vehicles.More complex periscopes, using prisms and/or advanced fiber optics instead of mirrors, and providing magnification, operate on submarines and in various fields of science. The overall design of the classical submarine periscope is very simple: two telescopes pointed into each other. If the two telescopes have different individual magnification, the difference between them causes an overall magnification or reduction.".
- Periscope thumbnail Periscope_simple.svg?width=300.
- Periscope wikiPageExternalLink www.kentperiscopes.co.uk.
- Periscope wikiPageExternalLink index.htm.
- Periscope wikiPageExternalLink optsys.
- Periscope wikiPageExternalLink index.php.
- Periscope wikiPageExternalLink index.php?topic=1348.0.
- Periscope wikiPageID "216021".
- Periscope wikiPageRevisionID "600379500".
- Periscope hasPhotoCollection Periscope.
- Periscope subject Category:1902_introductions.
- Periscope subject Category:British_inventions.
- Periscope subject Category:Optical_devices.
- Periscope subject Category:Submarine_components.
- Periscope comment "A periscope is an instrument for observation over, around or through an object, obstacle or condition that prevents direct line-of-sight observation from an observer's current position.In its simplest form, it consists of an outer case with mirrors at each end set parallel to each other at a 45-degree angle.This form of periscope, with the addition of two simple lenses, served for observation purposes in the trenches during World War I.".
- Periscope label "Periscoop".
- Periscope label "Periscope".
- Periscope label "Periscopio".
- Periscope label "Periscopio".
- Periscope label "Periscópio".
- Periscope label "Periskop".
- Periscope label "Peryskop (przyrząd optyczny)".
- Periscope label "Périscope".
- Periscope label "Перископ".
- Periscope label "مئفاق".
- Periscope label "潛望鏡".
- Periscope label "潜望鏡".
- Periscope sameAs Periskop.
- Periscope sameAs Periskop.
- Periscope sameAs Περισκόπιο.
- Periscope sameAs Periscopio.
- Periscope sameAs Periskopio.
- Periscope sameAs Périscope.
- Periscope sameAs Periskop.
- Periscope sameAs Periscopio.
- Periscope sameAs 潜望鏡.
- Periscope sameAs 잠망경.
- Periscope sameAs Periscoop.
- Periscope sameAs Peryskop_(przyrząd_optyczny).
- Periscope sameAs Periscópio.
- Periscope sameAs m.01fmnr.
- Periscope sameAs Q183122.
- Periscope sameAs Q183122.
- Periscope wasDerivedFrom Periscope?oldid=600379500.
- Periscope depiction Periscope_simple.svg.
- Periscope isPrimaryTopicOf Periscope.
