How Does a Periscope Work?

A periscope is built like and works much like a telescope, with a long tube containing a mirror at each end. The mirrors are fitted into the tube so that they are parallel to each other at a 45° angle to the axis, or imaginary long center line, of the tube.

More complicated periscopes have extra lenses added to enlarge the image. Submarine periscopes contain this more complicated arrangement. They have reflecting prisms at the top and bottom of the tube, with two telescopes and several lenses between the two ends, and an eyepiece at the viewing end. A submarine periscope also has a thick, rigid, waterproof casing and can stand the pressure of great depths of water.

In addition to submarines, tanks also use periscopes in wartime to navigate or look for enemy targets. Both of these vehicles have periscopes which can be raised or lowered, as well as turned around in a 360° circle.

Periscopes can also be built so they see around corners!


Comments

Persicopes

Hi
This is what I was looking for, but I need an explanation that uses these words:
 Light
 Light Travels
 Reflection
 Source
 Reflect
 Eyes
 Mirror
 Straight Line

Please help me, because this has to be in on Wednesday. Thanks!

Thanks first time heard

Thanks first time heard about Periscopes !

Periscope

But let's say you are 500 feet beneath the water, you can't just extend 500 feet of tubings to the surface.

i love periscopes

i love periscopes there amazing , my life wud suck wifout thm
i sleep in bed with them !! && have a little portable one in my handbag

JODIE SMITH LOVESS PERISCOPES ;) :P

W00T!

It is so cool to have this! i WOULD GET DETENTION if i didnt get this info! so THANX!

thanks for helping me to do

thanks for helping me to do my project.

they cool. They work good

they cool. They work good almost like sucky sucky five dola.

periscopes r amazing!!!

thanks we r doin it for homework and i wasn't sure how a periscope worked this realy helped

thankkszzz x

this is my homework you rock dude/dudet !!
wooo

periscopes Rock my world

periscopes Rock my world

Thhaannkyouuu!! I so needed

Thhaannkyouuu!! I so needed dis for meh science hmwrk!!!Reaallly hlepful!

Thanx!!

How?

How are light waves used in periscopes?

perascops

they are cool and we r doing the in science with the most boringist of teachers!! lol

u are soo wrong!

periscopes are not cool they are weird cus we had to research them and they are soooooooooooooooooooo boring!

them are cool

them are cool

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