- observational day
- 观测日
Atmospheric Sciences (English-Chinese) dictionary. 2014.
Atmospheric Sciences (English-Chinese) dictionary. 2014.
Aryabhatta Research Institute of Observational Sciences — Established April 20, 1954 Type Research Institution Director Prof. Ram Sagar Location Nainital, Indi … Wikipedia
Another Day (Paul McCartney song) — Infobox Single Name = Another Day Artist = Paul McCartney from Album = Ram (1993 remaster) B side = Oh Woman, Oh Why Released = 19 February 1971 Format = 7 Recorded = December 1970 Genre = Rock Length = 3:41 Label = Apple Records Writer = Paul… … Wikipedia
cosmos — /koz meuhs, mohs/, n., pl. cosmos, cosmoses for 2, 4. 1. the world or universe regarded as an orderly, harmonious system. 2. a complete, orderly, harmonious system. 3. order; harmony. 4. any composite plant of the genus Cosmos, of tropical… … Universalium
animal learning — ▪ zoology Introduction the alternation of behaviour as a result of individual experience. When an organism can perceive and change its behaviour, it is said to learn. That animals can learn seems to go without saying. The cat that… … Universalium
Hebrew 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
Experiment — Experimental redirects here. For the musical classification, see Experimental music. For other uses, see Experiment (disambiguation). Even very young children perform rudimentary experiments in order to learn about the world. An experiment is a… … Wikipedia
Metric expansion of space — Physical cosmology Universe · Big Bang … Wikipedia
Circumcision — This article is about male circumcision. For female circumcision, see Female genital mutilation. Circumcision Intervention Circumcision being performed in central Asia, possibly Turkmenistan c. 1865–1872. Restored albumen … Wikipedia
History of timekeeping devices — For thousands of years, devices have been used to measure and keep track of time. The current sexagesimal system of time measurement dates to approximately 2000 BC, in Sumer. The Ancient Egyptians divided the day into two 12 hour periods, and… … Wikipedia
science, philosophy of — Branch of philosophy that attempts to elucidate the nature of scientific inquiry observational procedures, patterns of argument, methods of representation and calculation, metaphysical presuppositions and evaluate the grounds of their validity… … Universalium
Timeline of Islamic science and engineering — This timeline of Islamic science and engineering covers the general development of science and technology in the Islamic world during the Islamic Golden Age, usually dated from the 7th to 16th centuries.From the 17th century onwards, the advances … Wikipedia