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Story
December 29, 1914
The Monroe Journal
Monroe, Union County, North Carolina
What is this article about?
Description of the periscope, the 'eye of the submarine,' which allows submerged vessels to see above the ocean surface using a tube with lenses and mirrors, overcoming the limitations of early submarines.
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GIVES VIEW OF THE OCEAN
Periscope, "Eye of the Submarine," Is In Many Respects a Remarkable Invention.
The great fault of the early submarines was that they could not see once they were below the surface of the water. The invention of the periscope altered all that, and gave the modern submarine a marvelous eye by means of which it could see over the surface of the ocean, though the body of the submarine is completely below the waves.
The eye of the submarine is a straight, hollow tube starting from the steering chamber of the vessel, and projecting above the surface of the waves when the boat is submerged. As the periscope is only a matter of six inches in diameter, and only projects some 18 inches above the waves, it is a most difficult thing for an enemy to see. Its total length is about 15 feet.
The submarine's eye is really a combination of telescope and camera obscura. At the top is a powerful lens, and inside, at intervals all the way down, is a series of mirrors which carry the reflection of what is above the surface to the watcher in the submarine 15 feet below.
Periscope, "Eye of the Submarine," Is In Many Respects a Remarkable Invention.
The great fault of the early submarines was that they could not see once they were below the surface of the water. The invention of the periscope altered all that, and gave the modern submarine a marvelous eye by means of which it could see over the surface of the ocean, though the body of the submarine is completely below the waves.
The eye of the submarine is a straight, hollow tube starting from the steering chamber of the vessel, and projecting above the surface of the waves when the boat is submerged. As the periscope is only a matter of six inches in diameter, and only projects some 18 inches above the waves, it is a most difficult thing for an enemy to see. Its total length is about 15 feet.
The submarine's eye is really a combination of telescope and camera obscura. At the top is a powerful lens, and inside, at intervals all the way down, is a series of mirrors which carry the reflection of what is above the surface to the watcher in the submarine 15 feet below.
What sub-type of article is it?
Curiosity
Extraordinary Event
What themes does it cover?
Exploration
Triumph
What keywords are associated?
Periscope
Submarine
Invention
Ocean View
Mirrors
Lens
Where did it happen?
Ocean
Story Details
Location
Ocean
Story Details
The periscope enables submarines to view the ocean surface from below using a 15-foot tube with lenses and mirrors, addressing the visibility limitations of early submarines and making it hard for enemies to detect.