MavicaNET - Календар і вимірювання часу

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Календар і вимірювання часу
	Каталог / Культура / Наука / Науки про неорганічний мир / Астрономія / Календар і вимірювання часу


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Календарі

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Astroplus
L'astronomie: l'histoire et les actualitйs. Un dossier de systиme solaire, les constellations, une page consacrйe aux diffйrents йpisodes de l'exploration spatiale. L'information sur des recherches d'une vie extraterrestre: tйmoignages et hypothиses. Le temps: les diffйrents calendriers, historique des instruments permettant de calculer le temps, problиme de la date du nouveau millйnaire. [fra]

A Walk Through Time
The history of timekeeping from acient calendars to NIST time calibration [eng]

Time and Dates
Cognitive information on date, time, and time zones from the New York Public Library. [rus | eng]

Islamic Calendar
Islamic months begin at sunset on the day of visual sighting of the lunar crescent. How can we define this moment? [rus | eng]

A Calendar for Mars
Mars needs a calendar - using Earth dates just won't do. If I tell you it is February 1, you know that it is freezing in Minneapolis, but what does it tell you about conditions on Mars? Article by Dr. Robert Zubrin. [eng]

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