Big ships such as Navy's have periscopes and submarines have it too. If it is high for you to see you will use an periscopes.
periscopes are used for submarines and war tanks
Periscopes are devices that use mirrors to allow people to view past obstacles. Submarines commonly use periscopes to see above the water without having to surface.
Control room, submarines
Traditionally, by using a periscope to view optically above the surface. As periscopes are a weak point in a submarine - modern nuclear submarines use external cameras instead of periscopes.
The new photonics masts are much different than the older style periscopes, so they only extend about 30 feet (they don't have a hull penetration). For traditional periscopes, usually around 30-40' above the sail/fairwater. Periscope depth for most modern submarines is about 65'.
i think they are used in submarines,tanks,and also are used like a telescope..
Periscopes were used in both WW1 and WW2. They were used on submarines and in the trenches. It was dangerous to look over the top of a trench so soldiers developed "trench periscopes".
You would use periscopes for spying or looking above a persons head
Periscopes were used to watch and observe and spy on the enemy lines during the war and are still used in submarines
Periscopes were used to watch and observe and spy on the enemy lines during the war and are still used in submarines
well i can tell you what it is but im not quit sure what you mean by an example.... it is a optical instrument for viewing objects that are above the level of direct sight; mostly used in submarines