Periscope
From Wikimedia Commons, the free media repository
English: A periscope is a optical device for seeing things, but from another place or angle.
[edit] Drawings
 Principle |
 Basic principle with mirrors or prisms |
 Periscope lens |
 Periscope with lenses and prisms |
[edit] Photographs
 Submarine |
 Soyuz 19 |
 Sniper with periscope rifle |
 British soldier with periscope rifle |
 World War 1 periscope |
 Modern submarine periscope and Debbe Dunning |
 A torpedoed Japanese destroyer as seen through the periscope of an American submarine |
