File:Light spectrum on a wall caused by sunlight going through prism and then through handmade glass.jpg

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Description Scattered resp. distorted light spectrum on a wall - caused by sunlight going through a glass crystal (acting as an optical prism) at a window, and then after c. 6 meters, through the handmade glass lampshade of a candleholder having an irregular thickness and thus causing the warped appearance with 'bubbles'. Size of this spectrum on the wall from bottom to top only about 7 cm, hence the image is strongly enlarged.

The whole phenomenon was not intended, but resulted coincidentally from the positions of the items in the room on a sunny day. Due to the earth rotation, the spectrum on the wall disappeared after only some minutes during which the pictures were taken, and was since never observed again.
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Author Pittigrilli
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: Light spectrum on a wall caused by sunlight going through prism and then handmade glass.jpg
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  • Image showing situation with spectrum small on the wall, the glass crystal having the sprectrum-producing prism effect is not shown as about 6 m away at a window
    Image showing situation with spectrum small on the wall, the glass crystal having the sprectrum-producing prism effect is not shown as about 6 m away at a window
  • Close-up photo of spectrum from side
    Close-up photo of spectrum from side
  • The glass crystal at a window, which produced the light spectrum due to its facet structure
    The glass crystal at a window, which produced the light spectrum due to its facet structure
  • A close-up photography of the cylindrical glass lampshade with the irregularities in thickness resulting in a visible ring-like structure, which warped the light spectrum produced by the prism (see left) c. 6 meters away from the candleholder
    A close-up photography of the cylindrical glass lampshade with the irregularities in thickness resulting in a visible ring-like structure, which warped the light spectrum produced by the prism (see left) c. 6 meters away from the candleholder
This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: made plane from oblique view. The original can be viewed here: Light spectrum on a wall caused by sunlight going through prism and then handmade glass.jpg: . Modifications made by Pittigrilli.

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Date/TimeThumbnailDimensionsUserComment
current19:35, 13 February 2022Thumbnail for version as of 19:35, 13 February 20221,570 × 2,445 (988 KB)Pittigrilli (talk | contribs)crop
19:04, 13 February 2022Thumbnail for version as of 19:04, 13 February 20221,664 × 2,668 (979 KB)Pittigrilli (talk | contribs)correct perspective
19:03, 13 February 2022Thumbnail for version as of 19:03, 13 February 20222,970 × 3,960 (2.29 MB)Pittigrilli (talk | contribs)File:Light spectrum on a wall caused by sunlight going through lampshade.jpeg cropped 2 % horizontally, 2 % vertically, rotated 1° using CropTool with precise mode.

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