When the submarine is upto 20 meters from the surface they use a periscope which is simply 2 pieces of glass at 45 degrees to each other. similar to the periscope used to view from a trench by the army.
sonar
i think a microscope or a elctronmicroscope
An alethoscope is an instrument for viewing pictures by use of a lens, so as to see them in their natural proportion.
Periscope is made up of two words, 'peri' meaning around and 'scope' meaning instrument for viewing. The origin of both words is from the Greek 'periscopein' meaning to look around. The submarine application is from 1899. As a photographic term, the word was in use from 1865
noun a instrument use for viewing small objects. i used a scope for my science class last week. a scope is a instrument than can be used on a rifle to shoot game also.
A panendoscopy can be used in general terms as an endoscope (a flexible, typically fiber optic instrument used for viewing internal organs) used for wide-angle viewing. The more common definition of penendoscopy the use of an endoscope for viewing the bladder. See related link below.
A prism can be used for splitting light into its constituent colors, but scientists tend to use a more precise instrument called a spectrograph.
Hi Submariners use submarines as the name suggests, however they also use diving bells and R.O.V.s ( Robotic offshore Vehicles).
you press Q AND X to use submarine reflection. you press Q and X to use submarine reflection.
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
A submarine.
"The submarine fired a torpedo at the large ship."