File:Variable angle of light in courtyard.gif
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| Description |
English: A diagram showing the varying angles at which light hits windows in a courtyard |
| Date | |
| Source | http://glassian.org/Prism/Luxfer/Sweet15/page172.html |
| Author | 1915 Sweet's Indexed Catalog of Building Construction |
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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1930.
 Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
Note: This tag should not be used for sound recordings. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 05:33, 10 October 2017 | | 177 × 265 (7 KB) | HLHJ (talk | contribs) | User created page with UploadWizard |
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