How Does a Submarine See Above Water? Wonderopolis
But periscopes redirect light waves, allowing us to see objects around corners, over obstacles, or, as in a submarine, from underwater. Light bounces off an object and hits the first mirror, then it’s reflected through the tube, off the other mirror and into the eye of the viewer.... Submarines feature a special device called a periscope that allows people inside the submarine to see what's going on above water. The word “ periscope " comes from the Greek words peri and scopus , which mean “around" and “look."
What is a Periscope? (with pictures) wisegeek.com
The periscope can usually be extended to a length of up to 60 feet, and can be swiveled to give the operator a 360 degree view of the ocean surface. The lowest depth at which a submarine can use a periscope is called the periscope depth ....Every movie with a submarine has a periscope scene like this. And now you can live out your own submarine movie. Or at least you can live the periscope scene. For the flooded compartment bit, someone yelling "Two feet and rising", you're on your own. I recommend the bathtub for that one.
Who Invented the Periscope? Reference.com
Submarines have periscopes sticking up from their masts. (Image: ancient submarine image by Andrew Breeden from Fotolia.com) A periscope is a tool … how to run mongodb on heroku A periscope is an optical device which allows an observer to see things which are beyond his or her line of sight. One of the classical uses of a periscope is in submarines. Instead of needing to surface to see what is going on at sea level, the submarine can instead stay safely submerged under the water and extend a periscope to look around.. How to make a periscope
What is a Periscope? (with pictures) wisegeek.com
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In 1854, Frenchman Hippolyte Marie-Davey invented the first naval periscope, which was a sight tube made of two mirrors at 45-degree angles. In the 1880s, other periscopes were created, but these designs, including Marie-Davey's, were still primitive in development and not entirely useful.
- The periscopes used in submarine applications are complex, typically requiring the use of tubes that are at least 10 meters in length to achieve a greater range of scope.
- The most common use of periscopes is inside the submarine and military mainly for observation from concealed positions. From inside the submarine which is deep under water, objects above water (ships, boats etc) cannot be viewed without the help of periscopes.
- In this activity you will set up mirrors so you can figure out how a periscope works. Draw a long horizontal line on the board using a ruler. Place wall blocks in the pattern shown in the picture below.
- 5/08/2017 · The periscope is the only visual information available coming into the submarine from the external environment, and it is only available when at periscope depth. The periscope is …
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