... SEARCHING FOR THE ASTRONOMY OF ABORIGINAL AUSTRALIANS Ray P. Norris1 , 1 CSIRO Australia Telescope, PO Box 76, Epping, NSW, 1710, Australia Received October 16, 2007; revised December 31 Abstract. ... It implies a quest to understand the sky, to ask questions about the motion of the Sun and Moon, to ponder what would cause phenomena like eclipses or comets, and to ask whether events in the sky are connected to those on Earth. ... Australian Aboriginal Astronomy 5 2003). ... Aboriginal Astronomy. ...
metrologia The leap second: its history and possible future R. A. Nelson, D. D. McCarthy , S. Malys, J. Levine, B. Guinot, H. F. Fliegel , R. L. Beard and T. R. Bartholome w Abstract. This paper reviews the theoretica l motivatio n for the leap second in the context of the historica l evolutio n of time measurement . Th e periodic insertio n of a leap second step into th e scale of Coordinate d Universal Time (UTC) necessitates frequent changes in comple x timekeepin g systems an d is currentl y th e
... Twenty-Six Year Monitoring of Water Masers IAU Symposium 242, Alice Springs 1 Contents of the work A sample of H2O maser emission sources has been observed since 1980. ... Rudnitskij et al. ... Twenty-Six Year Monitoring of Water Masers IAU Symposium 242, Alice Springs 4 Maser in a protoplanetary disc (S255) Flux density, Jy S255: H2O line profile 5 February 2002 Radial velocity, LSR, km/s Rudnitskij et al. ... Twenty-Six Year Monitoring of Water Masers IAU Symposium 242, Alice Springs 12 ...
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