The point which is elevated 90 degrees from all points on a given observer's astronomical horizon. The point on any given observer's celestial sphere that lies directly above him. The opposite of nadir.
The position of the sun during the course of the year as it appears to move though successive constellations. Also, the band where the ecliptic runs centrally through the celestial sphere and contains the sun, the moon, and all the planets except Venus and Pluto.
The flow of air along a latitudinal component of existing flow, normally from west to east.
Related term: meridional flow
The measure of the strength of the westerly winds of the middle latitudes. It is expressed as the horizontal pressure difference between 35 degrees and 55 degrees latitude, or as the corresponding geostrophic wind.
One of several names for the twenty-four hour time which is used throughout the scientific and military communities.
Related terms: Universal Time Coordinate (UTC) and Greenwich Mean Time (GMT)
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USA2017.com :: main page. Somebody think about future. We make future today. Peace, freedom, happiness for everyone in USA and everywhere on the Earth in 2017.
Internet portal on USA 2017. :: Internet Basics. Internet Service Providers. The Internet actually consists of five major services: World Wide Web (Web), Electronic Mail (E-mail), Newsgroups (Usenet), Internet Relay Chat (IRC), File Transfer Protocol (FTP).
Art Portal on USA2017. :: Art is the process and/or product of deliberately items in a special way that affects and influences our senses and emotions. It encompasses a diverse range of human creations, activities, and modes of expression, including music, literature, film, photography, sculpture, and paintings.
Books Store of the USA2017.com. Some books are free! :: The word "book" comes from Russian word "буква" (bukva means "a letter"). The Russian word "букварь" (bukvar) translates as textbook that helps young children read and write. A book is a set of printed and illustrated sheets, made of ink and paper fastened together to hinge at one side. A single sheet is called a leaf. Each side of a leaf is called a page. A book produced in electronic format is called ebook (e-book or electronic book).
Chess portal on USA2017. :: Chess is the best game over the world. Chess makes your brain work good and your soul feel happy. Chess is taught to children in schools around the world today. Many schools host chess clubs, and there are many scholastic tournaments specifically for children. Tournaments are held regularly in many countries, hosted by organizations such as the United States Chess Federation and the National Scholastic Chess Foundation. I don't think about chess as a sport, for me chess is an art.