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A kaleidoscope is an optical instrument in which bits of glass, held loosely at the end of a rotating tube, are shown in continually changing symmetrical forms by reflection in two or more mirrors set at angles to each other. A kaleidoscope operates on the principle of multiple reflection, where several mirrors are placed at an angle to one another. Typically there are three rectangular mirrors set at 60° to each other so that they form an equilateral triangle, but other angles and configurations are possible. The 60° angle generates an infinite regular grid of duplicate images of the original, with each image having six possible angles and being a mirror image or an unreversed image.

As the tube is rotated, the tumbling of the coloured objects presents varying colours and patterns. Arbitrary patterns show up as a beautiful symmetrical pattern created by the reflections.

Not easy to photograph through the tiny triangle, and these don’t really do justice to what the eye can see.


12 comments on “Day 234~366

  1. beetleypete says:

    When I was a child, I had a cardboard tube kaleidoscope, bought from Woolworths. I loved that thing, and looked at the changing patterns for hours.
    Very nice post, FR. Good memories too.
    Best wishes, Pete.

    Liked by 1 person

    1. I love mine Pete, a present from an old friend. Yes, memories indeed. 😊


      1. beetleypete says:

        Your one is a thing of beauty indeed, FR.

        Liked by 1 person

  2. Jay says:

    Wow so vivid!

    Liked by 1 person

    1. Cheers Jay, it’s a beautiful piece.


  3. Francis.R. says:

    So much fantasy in a simple device. ^_^

    Liked by 1 person

    1. Yes, it’s a lovely thing and quite hypnotic to use. 😊 cheers Francis, how are you doing these days?

      Liked by 1 person

      1. Francis.R. says:

        I am fine, fragglerocking. Thank you. : ) How are you?

        Liked by 1 person

        1. I’m fine thanks, had my birthday yesterday so a bit older than I was 🙂


  4. Wonderful….like stained glass windows, don’t think ‘Ive looked in a kaleidoscope since i was a child…thanks for the memory 🙂

    Liked by 1 person

    1. You’re welcome 😊

      Liked by 1 person

  5. kmSalvatore says:

    whoa very kool Fraggy


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