A periscope looks like a long pipe with a bend on either end. One bend faces a direction, and the other bend faces the opposite direction.
The periscope for its purpose is to look around the objects. In greek , 'peri' means around and 'scopus' means to look . hence the name.
When at periscope depth, they look through the periscope. It is a prism arrangement that allows good vision around the area. It also provided for gauging distances with a built in range finder.
To use a periscope to look over a wall, you would place the periscope on top of the wall and then look into the eyepiece at the other end. The mirrors inside the periscope will reflect the view from above the wall down to your eye, allowing you to see over the wall without exposing yourself.
periscope.
The root "peri-" in the word "periscope" comes from the Greek word "peri," meaning "around" or "about," and "scope" comes from "skopein," meaning "to look at" or "to see." So, "periscope" essentially means "to look around" or "to observe from an elevated position."
In paintball wars, a periscope is a handy way to look around a corner without getting shot. With only its periscope out of the water, a submarine was nearly impossible to spot at a distance.
When you look into a periscope, you see a magnified view of what is above the surface of the water. Periscopes are commonly used on submarines to enable viewing above the waterline without the vessel having to surface.
To use a periscope, you look through one end while the other end is extended above an obstacle or around a corner to view something that is out of your line of sight. By using the mirrors inside the periscope, you can see images from a different angle without exposing yourself.
To look over pplz heads
Although the use of a periscope to look over the heads of a crowd was first known around 1430 the first person to patented it was Morgan Robertson, around 1920.
You can look over a wall with a periscope because the tube has mirrors what are on a 45 degree angle so the light goes in the top, reflects off the top mirror, then onto the bottom mirror and then into your eyes. Don't forget: Light only travels in straight lines
The captain of a ship typically uses a telescope to look at distant objects on the sea or the shoreline. A periscope, on the other hand, is primarily used in submarines to see above the surface while remaining submerged. Therefore, the captain of a conventional ship would use a telescope rather than a periscope.