-40%
Christmas Gift-8" Black Antique Brass PERISCOPE for Navy & Military,Cyber Monday
$ 104.6
- Description
- Size Guide
Description
SIFAAT WORLD8'' Black Commando Antique Solid Brass
PERISCOPE
with Beautiful Wooden Box,
Made For Royal Navy LONDON-1917
,Fully Functional & Working Periscope for SAILORS,NAVY,etc. (Replica)
Condition
: Branded NEW
A Periscope is an Optical Instrument that is used to see Objects which are not at the Same level as of Observer.
Principle of the Periscope:
➤ In a periscope, light from an object strikes the top Prism at 45° and bounces off at the same angle to reach the bottom prism.
➤ It works on the principle of total internal reflection (T.I.R.) of the light phenomenon. In Periscope, We use the totally reflecting prisms which turn the ray through 90°.
Uses Of Periscopes :
➤ Periscopes uses prisms providing magnification operate on Submarines and in various fields of Science.
➤ People first started using Periscope in submarines to allow sailors to see above the Water.
How this Periscope Works ?
➤ Inside this Periscope There are 2 Prisms that are Placed in Parallel and Facing Each Other. Also, there are 2 Mirrors that are Fixed near the Observer's Eye and on the Other End.
➤ The 2 Prisms in this Periscope are Placed at 45° degree angle.
➤According to the laws of Reflection, When a ray of light falls on a plane surface. it gets reflected at an angle equal to incident angle.
➤ The Reflected light falls on second prisms and is again reflected. Hence, the first prism captures the desired image and reflects surface of second Prism.
➤ In turn, the Second Mirror Reflects the image in a way that it can be viewed by the Observer.
Not Sold as an Antique,This is a Reproduction Item (Replica).
Other Features :
This is a
Unique
Hand-Crafted Item Made FIRST TIME by our 20 Years Experienced Indian Craftsman
. A Periscope is an Optical Instrument that is used to see Objects which are not at the Same level as of Observer.
This is a
Fully Functional Working Periscope with Wooden Box
. A Beautiful Item To be Gifted to Your DAD, SAILOR'S , MILITARY PEOPLE, SHIP WORKER'S,etc. and many more to Your LOVED ONE'S.
Item Box Dimensions :
25 x 8 x 7.5 cm
; Total Weight Of this item with Wooden Box :
1.05 kg/2.32 Pounds
; Periscope Length -
8 Inches / 20cm
(approx.) ; Weight of Periscope Only :
0.65kg / 1.4 Pounds.
This Antique Item is
Made of Pure Antique BRASS, 2 - MIRRORS and 2 - PRISMS
; The Diagram to Explain How this Item Works is Engraved on the top of the Wooden Box.
Can be Used as a
Gift Items For Birthday Gifts, Christmas Gift,Fathers Day Gift,
etc.
Sold & Manufactured By
SIFAAT WORLD
from
INDIA
.
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