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NCERT has a comprehensive extension program in which departments of the National Institute of Education, Regional Institute of Education, Central Institute of Vocational Education, and field coaches' offices in the states are engaged in activities. Several programs are organized in rural and backward areas to reach out to functionaries in these ...
References to Dalit writer Omprakash Valmiki have been removed from the social science textbooks of Classes 7 and 8 as part of the latest revision. In the Class 7 textbook topic titled “Our Pasts-2”, pages 48 and 49 have been excluded. These pages mentioned “Mughal Emperors: Major campaigns and events.”
The length of polar night varies by latitude from 24 hours just inside the polar circles to 179 days at the poles. As there are various kinds of twilight, there also exist various kinds of polar twilight that progress towards true polar night. Each kind of polar night is defined as when it is darker than the corresponding kind of twilight.
In the Night's Dawn trilogy, humankind, although now united under an organization known as the Confederation, has been broken up into two major divisions, Adamists and Edenists. The economy is dominated by the Edenists, who maintain a powerful monopoly across the Confederation by harvesting 3 He ("helium 3") from suitable gas giants .
Olbers's paradox says that because the night sky is dark, at least one of these three assumptions must be false. Olbers's paradox , also known as the dark night paradox or Olbers and Cheseaux's paradox , is an argument in astrophysics and physical cosmology that says the darkness of the night sky conflicts with the assumption of an infinite and ...
Ma Nishtana (Hebrew: מה נשתנה) is a section at the beginning of the Passover Haggadah known as The Four Kushiyot, The Four Questions or "Why is this night different from all other nights?", traditionally asked via song by the youngest capable child attending Passover Seder.
One of the important questions in sleep research is clearly defining the sleep state. This problem arises because sleep was traditionally defined as a state of consciousness and not as a physiological state, [14] [15] thus there was no clear definition of what minimum set of events constitute sleep and distinguish it from other states of partial or no consciousness.
Written from March 17 to April 9, 1941 and sold on April 24, the short story was published in the September 1941 issue of Astounding Science Fiction under editor John W. Campbell. It was the 32nd story by Asimov, written while he was a graduate student in chemistry at Columbia University.