... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Student list | ... Parkes radio telescope . ... As the Wildflowers project develops examples of student work from a range of activities will be posted here for you to view. One of the initial activities for partner schools is for students to design a logo for the project that encapsulates the themes of Wildflowers in the Sky . The contributions below are from students at Meekatharra School of the Air. б  . ...

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