overwrought 发表于 2025-3-28 14:45:15
Kinematical Basis of Galactic Dynamics,A correct kinematical description of the galaxy is a necessary first step before it is profitable to develop detailed dynamical theories. For example, if the motions in the galaxy are inward along the spiral arms the resulting dynamical theory will differ from one that explains circular motions.冷淡周边 发表于 2025-3-28 19:28:17
http://reply.papertrans.cn/17/1638/163717/163717_42.pnghardheaded 发表于 2025-3-29 00:33:21
http://reply.papertrans.cn/17/1638/163717/163717_43.pngADAGE 发表于 2025-3-29 06:34:36
http://reply.papertrans.cn/17/1638/163717/163717_44.png有害 发表于 2025-3-29 11:17:40
https://doi.org/10.1007/978-3-319-25075-5ies can be described for carrying out the required measurements. But a distance derived from the exchange of light-signals between galaxies, while it can be imagined, is not one describable in terms of operations accessible to terrestrial astronomers.推崇 发表于 2025-3-29 11:25:26
http://reply.papertrans.cn/17/1638/163717/163717_46.png勤劳 发表于 2025-3-29 19:35:26
http://reply.papertrans.cn/17/1638/163717/163717_47.pngmuscle-fibers 发表于 2025-3-29 20:42:07
Distance and Time in Cosmology: The Observational Data,ies can be described for carrying out the required measurements. But a distance derived from the exchange of light-signals between galaxies, while it can be imagined, is not one describable in terms of operations accessible to terrestrial astronomers.种植,培养 发表于 2025-3-30 01:07:10
http://reply.papertrans.cn/17/1638/163717/163717_49.png现晕光 发表于 2025-3-30 06:43:43
From Biological to Artificial Consciousnessde more detailed studies of their colours, spectra and dynamics were undertaken principally at the Harvard, Lick, Mt. Wilson, Lund and Stockholm observatories. The main results available at the end of the war have been summarized by . [.] and by . [.].