Intercalation

  • 41calendar — calendrical /keuh len dri keuhl/, calendric, calendarial /kal euhn dair ee euhl/, calendarian, calendaric, adj. /kal euhn deuhr/, n. 1. a table or register with the days of each month and week in a year: He marked the date on his calendar. 2. any …

    Universalium

  • 42Egypt — • Provides information on history, religion, and literature Catholic Encyclopedia. Kevin Knight. 2006. Egypt     Egypt     † …

    Catholic encyclopedia

  • 43Timekeeping on Mars — Various schemes have been used or proposed to keep track of time and date on the planet Mars independently of Earth time and calendars. Mars has an axial tilt and a rotation period similar to those of Earth. Thus it experiences seasons of spring …

    Wikipedia

  • 44CALENDAR — (Heb. לוּחַ, lu aḥ). The present Jewish calendar is lunisolar, the months being reckoned according to the moon and the years according to the sun. A month is the period of time between one conjunction of the moon with the sun and the next. The… …

    Encyclopedia of Judaism

  • 45ASTRONOMY — In the Bible Although the Bible contains no explicit mention of the science of astronomy, it nevertheless has many references to topics such as the laws of the heavens (Jer. 31:34 (35); 33:25; Job 38:33) and the movements of the sun and the moon… …

    Encyclopedia of Judaism

  • 46Islamic calendar — Arabic calendar redirects here. For the Gregorian calendar in Arabic, see Arabic names of calendar months. This …

    Wikipedia

  • 47Boron nitride — IUPAC name Boron nitride Identifiers …

    Wikipedia

  • 48Hebrew calendar — The Hebrew calendar (הלוח העברי ha luach ha ivri), or Jewish calendar, is a lunisolar calendar used today predominantly for Jewish religious observances. It determines the dates for Jewish holidays and the appropriate public reading of Torah… …

    Wikipedia

  • 49Calendrier julien — Le calendrier julien résulte de la réforme du calendrier romain introduite par Jules César en 46. Il est utilisé dans la Rome antique à partir de 45. Il reste employé jusqu à son remplacement par le calendrier grégorien à la fin du… …

    Wikipédia en Français

  • 50Composé d'insertion du graphite — Modèle du potassium graphite K C8, vue de côté …

    Wikipédia en Français