File:Ole Rømer - Obser. Primi Jovialium Parisiis - pp2-3.jpg
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English: Page 2 and 3 of the list of eclipses of the Jupiter moons that formed the basis of Ole Rømer's discovery of the finite speed of light.
The top of page 2 lists the difference in longitude between Uranienborg and Paris, between Uranienborg and Copenhagen and between Copenhagen and Paris. Page 3 lists observations of the second and third moon of Jupiter (Europa and Ganymede).Dansk: Side 2 og 3 af listen over formørkelser af Jupitermånerne, der dannede grundlaget for Ole Rømers opdagelse af lysets tøven.
Øverst på side 2 er angivet længdeforskellen mellem henholdsvis Uranienborg og Paris, Uranienborg og København og København og Paris. På side 3 står observationer af den anden og tredje Jupitermåne (Europa og Ganymede). |
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| Date | 1670s (first publication in 1915) | ||||||||||||||||||||
| Source | Meyer, Kirstine (1915) Om Ole Rømers Opdagelse af Lysets Tøven, Det Kongelige Danske Videnskabernes Selskabs Skrifter, 7. Række, naturvidenskabelig og mathematisk Afdeling, XII. 3, København. Own scan. | ||||||||||||||||||||
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| Permission (Reusing this file) |
The original work is in the public domain by age. If the 1915 reproduction is photographic, it is still public domain because it does not meet the threshold of originality and it was created before 1970. | ||||||||||||||||||||
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Pages 1 and 4:  |
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This image is in the public domain in Denmark because the Danish Consolidated Act on Copyright of 2010 specifies (§91, 5) that all photographic images not considered to be "photographic works" that were created before 1 January 1970 are exempt from protection (details).
Note that "photographic works", which must display artistic merit or originality, enter the public domain 70 years after the death of the photographer and that photographs that are not considered works but created 1 January 1970 or later become public domain 50 years after they were created. See Licensing for details. Some countries have a lower threshold of originality and may therefore apply a longer protection term for this image, so it may not be usable in such countries. To uploader: For this to be applicable, creation year must be known (or known to be at least before 1970)
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 18:54, 24 August 2009 | | 9,185 × 6,775 (10.25 MB) | Hemmingsen | {{Information |Description={{en|Page 2 and 3 of the list of eclipses of the Jupiter moons that formed the basis of Ole Rømer's discovery of the finite speed of light. The top of page 2 lists the difference in longitude between Uranienborg and Paris, bet |
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