File:Britannica Diamond 5.jpg
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Summary
| Description |
English: An octahedron with furrowed edge may be constructed from two interpenetrating tetrahedra. |
| Date | |
| Source | Encyclopædia Britannica, 1911 |
| Author | Encyclopædia Britannica, Volume 8, Slice 4., available freely at Project Gutenberg |
Licensing
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This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States. |  |
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This image comes from the Project Gutenberg archives. This is an image that has come from a book or document for which the American copyright has expired and this image is in the public domain in the United States and possibly other countries.
This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg.net. |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:50, 18 January 2011 | | 192 × 162 (8 KB) | Keith Edkins | {{Information |Description={{en|An octahedron with furrowed edge may be constructed from two interpenetrating tetrahedra.}} |Source=Encyclopædia Britannica, 1911 |Author={{Gutenberg|no=32607|name=Encyclopædia Britannica, Volume 8, Slice 4.}} |Date=1911 |
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