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what is a periscope?
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Asked 3/11/2010 9:00:17 AM
Updated 3/3/2014 8:34:17 AM
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Flagged by jerry06 [3/3/2014 8:34:17 AM]
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User: what is a periscope?

User: what is a kaleidoscope?

Question
Asked 3/11/2010 9:00:17 AM
Updated 3/3/2014 8:34:17 AM
2 Answers/Comments
Flagged by jerry06 [3/3/2014 8:34:17 AM]
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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.
Added 3/3/2014 8:33:57 AM
This answer has been confirmed as correct and helpful.
Confirmed by alfred123 [3/3/2014 8:36:23 AM]
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A kaleidoscope is a cylinder with mirrors containing loose, colored objects such as beads or pebbles and bits of glass.
Added 3/3/2014 8:34:14 AM
This answer has been confirmed as correct and helpful.
Confirmed by alfred123 [3/3/2014 8:36:23 AM]
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Questions asked by the same visitor
A sound when it bounces back from an object is called what? User: What is an echo? User: If you can not see through a wall what material is it made of?
Question
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Updated 7/2/2014 1:24:59 AM
1 Answer/Comment
A sound when it bounces back from an object is called ECHO.
Added 7/2/2014 1:24:44 AM
This answer has been confirmed as correct and helpful.
what is a telescope?
Weegy: There are two types of telescopes: Reflectors and refractors User: what is a reflectors? User: whatis a refractors (More)
Question
Updated 9/28/2014 11:38:46 AM
3 Answers/Comments
A telescope is an instrument that aids in the observation of remote objects by collecting electromagnetic radiation (such as visible light).
Added 9/28/2014 11:37:20 AM
This answer has been confirmed as correct and helpful.
Confirmed by sujaysen [9/28/2014 12:35:45 PM]
A reflecting telescope (also called a reflector) is an optical telescope which uses a single or combination of curved mirrors that reflect light and form an image.
Added 9/28/2014 11:37:36 AM
This answer has been confirmed as correct and helpful.
Confirmed by sujaysen [9/28/2014 12:37:23 PM]
A refracting or refractor telescope is a type of optical telescope that uses a lens as its objective to form an image (also referred to a dioptric telescope).
Added 9/28/2014 11:38:15 AM
This answer has been confirmed as correct and helpful.
Confirmed by sujaysen [9/28/2014 12:38:09 PM]
what is a concave lens? User: what is convex lens?
Weegy: The most commonly-seen type of lens is the convex lens. This type of lens is often used for close examination of small objects, such as rare stamps or coins. [ Children often use such a lens to concentrate sunlight to burn small pinholes in pieces of paper. That result by itself shows the power of concentrated light from the sun. But there must be more to it than that. Let's see if we can define the behavior of lenses a bit more specifically. ] (More)
Question
Updated 10/1/2014 5:42:33 AM
2 Answers/Comments
A concave lens is a lens such that a parallel beam of light passing through it is caused to diverge or spread out.
Added 10/1/2014 5:41:54 AM
This answer has been confirmed as correct and helpful.
Confirmed by sujaysen [10/1/2014 7:10:54 AM]
A convex lens is a lens such that a beam of light passing through it is brought to a point or focus.
Added 10/1/2014 5:42:33 AM
This answer has been confirmed as correct and helpful.
Confirmed by sujaysen [10/1/2014 7:12:21 AM]
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