File:Ole Rømer - Obser. Primi Jovialium Parisiis - pp1+4.jpg
原始文件 （9,218 × 6,784像素，文件大小：9.44 MB，MIME类型：image/jpeg）
| 描述 |
English: Page 1 (right) and 4 of the list of eclipses of the Jupiter moon Io that formed the basis of Ole Rømer's discovery of the finite speed of light.
The Latin title Obser. Primi Jovialium Parisiis translates to "Observations of the first Jupiter moon in Paris". Page 1 lists emersions and immersions of Io observed between 1668 and 1678. The first observation (circled) is marked "should according to everyone's opinion be excluded". The top of page 4 lists observations of the fourth moon of Jupiter (Callisto). At the lower half are a couple of attempts to match the number of revolutions ("Rev.") of Io with an average orbiting time for three periods, 76-77, 71-72 and 72-73. Next to them are what according to Meyer p. 19 appears to calculations of an average value of the time it takes light to travel a distance equal to the Earth orbit radius (ca. 11 minutes). At the bottom, written upside down, are calculations of eclipses in Paris based on observed eclipses at Uranienborg.Dansk: Side 1 (til højre) og 4 af listen over formørkelser af Jupitermånen Io, der dannede grundlaget for Ole Rømers opdagelse af lysets tøven.
Den latinske titel Obser. Primi Jovialium Parisiis kan oversættes til "Observationer af den første Jupitermåne i Paris". Side 1 er en liste over emersioner og immersioner af Io observeret mellem 1668 og 1678. Den første obersvation (indcirklet) er mærket med "bør efter alles mening ekskluderes". Toppen af side 4 består af observationer af Jupiters fjerde måne. På den nederste halvdel er forsøg på at matche antallet af omløb ("Rev.") af Io med en gennemsnitsomløbstid for tre perioder, 76-77, 71-72 and 72-73. Ved siden af, er ifølge Meyer s. 19 tilsyneladende beregninger af en gennemsnitsværdi af den tid, det tager lyset at gennemløbe en afstand lig jordbanens radius (cirka 11 minutter). Nederst, skrevet på hovedet, er beregninger af formørkelser i Paris baseret på observerede formørkelser i Uranienborg. |
| 日期 | 1670年代 (first publication in 1915) |
| 来源 | 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. |
| 作者 | |
| 授权 (二次使用本文件) |
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. |
| 其他版本 |
Pages 2 and 3:  |
.jpg)
许可协议
|
本作品在其来源国以及其他著作权期限是作者逝世后100年或以下的国家和地区属于公有领域。  你必须增加美国公有领域标签显示为何这个作品在美国属于公有领域。
|
| 本文件已被确认为免除已知的著作权法限制（包括所有相关权利）。 | |
|
|
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)
你必须增加美国公有领域标签显示为何这个作品在美国属于公有领域。
|
 |
文件历史
点击某个日期/时间查看对应时刻的文件。
| 日期/时间 | 缩略图 | 大小 | 用户 | 备注 | |
|---|---|---|---|---|---|
| 当前 | 2009年8月24日 (一) 18:51 | | 9,218 × 6,784（9.44 MB） | Hemmingsen | {{Information |Description={{en|Page 1 (right) and 4 of the list of eclipses of the Jupiter moon Io that formed the basis of Ole Rømer's discovery of the finite speed of light. The Latin title ''Obser. Primi Jovialium Parisiis'' translates to "Observati |
文件用途
以下页面使用本文件：
全域文件用途
以下其他wiki使用此文件：
- en.wikipedia.org上的用途
- es.wikipedia.org上的用途
- fr.wikipedia.org上的用途
- id.wikipedia.org上的用途
- ja.wikipedia.org上的用途
- ko.wikipedia.org上的用途
- pl.wikipedia.org上的用途
- ru.wikipedia.org上的用途
