PERISCOPE - significado y definición. Qué es PERISCOPE
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Qué (quién) es PERISCOPE - definición

INSTRUMENT FOR OBSERVATION FROM A CONCEALED POSITION
Demo periscope; Periscopes; Vision block; Submarine periscope; M28 periscopic sight; Periscope depth
  • 1889 Arthur Krebs & Jean Rey periscope for the french Gymnote submarine

periscope         
(periscopes)
A periscope is a vertical tube which people inside submarines can look through to see above the surface of the water.
N-COUNT
periscope         
¦ noun an apparatus consisting of a tube attached to a set of mirrors or prisms, by which an observer (typically in a submerged submarine or behind a high obstacle) can see things that are otherwise out of sight.
Derivatives
periscopic adjective
periscopically adverb
periscope         
n.
1) to lower; raise a periscope
2) (as commands) periscope down; periscope up

Wikipedia

Periscope

A periscope is an instrument for observation over, around or through an object, obstacle or condition that prevents direct line-of-sight observation from an observer's current position.

In its simplest form, it consists of an outer case with mirrors at each end set parallel to each other at a 45° angle. This form of periscope, with the addition of two simple lenses, served for observation purposes in the trenches during World War I. Military personnel also use periscopes in some gun turrets and in armoured vehicles.

More complex periscopes using prisms or advanced fiber optics instead of mirrors and providing magnification operate on submarines and in various fields of science. The overall design of the classical submarine periscope is very simple: two telescopes pointed into each other. If the two telescopes have different individual magnification, the difference between them causes an overall magnification or reduction.

Ejemplos de uso de PERISCOPE
1. They also use aerial surveillance, periscope trucks, and underground sensors.
2. "But you have to listen to the music and watch the periscope hands.
3. There are no fancy sights, just guesswork using a periscope and the line of the gun.
4. It was wrenched out of his hand by the blast while his periscope was blown to pieces.
5. But the roof has been cut out and a large infrared camera sits in the back like a periscope.