0
A periscope is an instrument for observation from a concealed position. In its simplest form it consists of a tube with mirrors at each end set parallel to each other at a 45-degree 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 inarmoured vehicles.
More complex periscopes, using prisms instead of mirrors, and providing magnification, operate onsubmarines. 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.
Johann Gutenburg was the one who invented it.
What else can I help you with?
What has the author Armando Boix written?
Armando Boix has written: 'Aprendiz De Marinero - Periscopio - Edebe -, 77. -'
Who invented the abacus when it was invented why it was invented and who invented it?
jv
When invented resistor?
invented in 500BC before electricity was invented
When was the CD player invented and who invented it?
The CD was invented in 2001 Thomas clamps invented it.
When was the phone chargers invented?
Gloria Mejia invented it and she invented it in 1998
When was snickerdoodles invented and where?
When and where were snickerdoodles invented Why were snickerdoodles invented
When was the washboard invented?
who invented the washboard?
Is the computer invented or not?
Yes, the computer is invented.
What is the past participle of invented?
Invented is the past participle of the verb invent. verb /past /past participle = invent /invented /invented
Who invented the rudder?
The Chinese invented the Rudder.it was invented by the Chinese
What year was sprite invented?
when was sprite invented ! == == when was sprite invented ! == ==
Who invented the first quadbike?
how invented the quad bike how invented the quad bike how invented the quad bike
