In trench warfare much use was made of devices which allowed an observer to safely see across no-mans land. The periscope was one such item.The periscope was made of wood and folded into halves so as to allow ease of carriage. When used in ...
http://wiki.answers.com/Q/What_was_the_periscope_used_f...
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Early examples Johann Gutenberg , better known for his contribution to printing technology, marketed a periscope in the 1430s to enable pilgrims to see over the heads of the crowd at the vigintennial religious festival at Aachen . Simon Lak...
http://wiki.answers.com/Q/When_was_a_periscope_first_us...
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Shop our Online Store: Support Tour Egypt ... Shop in the Land of the Pharaohs; King Tut Replicas, Perfume & bottles, Papyrus, & more ... ; A Periscope Device Used to Locate the Enemy Home | Next...
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www.touregypt.net/featurestories/alemeinmus1.htm
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I have included a picture of a typical periscope designe. A periscope is designed to allow a person to see around an object or through a wall. Often used by the military, periscopes allow people to look at things without putting themselves in danger.
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www.madsci.org/posts/archives/may2000/959444445.Eg.r.ht...
www.madsci.org/posts/archives/may2000/959444445.Eg.r.html
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Periscopes are still useful, despite the sonar and electronic sensors of modern submarines. They can also be fitted with video cameras or other means of collecting permanent data. But operating at periscope depth, just beneath the ... To prevent detection, periscopes are used as infrequently and briefly as possible.
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www.americanhistory.si.edu/subs/operating/attackcenter/...
www.americanhistory.si.edu/subs/operating/attackcenter/periscopes/index.html
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A periscope can be used to see over objects. ... Light from a distant object enters the top hole of the periscope. The mirrors bend the light to make it come out of the bottom hole. ... You can see the image clearly by looking into the viewing hole.
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www.nelsonthornes.com/secondary/science/scinet/scinet/l...
www.nelsonthornes.com/secondary/science/scinet/scinet/light/reflec/peris.htm
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Now you have a periscope! If you look through the bottom hole, you can see over fences that are taller than you. If you look through the top hole, you can see under tables. If you hold it sideways, you can see around corners.
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www.exploratorium.edu/science_explorer/periscope.html
www.exploratorium.edu/science_explorer/periscope.html
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The standard attack periscope used in American submarines was 1-1/4 inches in diameter at the upper end. Search, or "night" periscopes have a larger head for increased light gathering capabilities. Late war American search periscopes incorporated a radar wave guide in the head.
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www.fleetsubmarine.com/periscope.html
www.fleetsubmarine.com/periscope.html
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Image viewer finder and organizer shareware ... Periscope Image Browser; V3.2 (freeware) - V4.3 (shareware $25) ... You can easily find and delete interactively duplicate images. It can be used to organize image files by using multiple copying and renaming.
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www.papyrussoftware.com/vmi.html
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