In astronomy and astrology, the prime vertical is the vertical circle passing east and west through the zenith, and intersecting the horizon in its east and west points. Astrometry: the study of the position of objects in the sky and their changes of position. ... An astrological chart (or horoscope) - Y2K Chart — This particular chart is calculated for January 1, 2000 at 12:01:00 A.M. Eastern Standard Time in New York City, New York, USA. (Longitude: 074W0023 - Latitude: 40N4251), using the tropical zodiac Astrology (from Greek: αστÏολογία = άστÏον, astron, star + λόγος, logos, word) is... Jump to: navigation, search In Euclidean geometry, a circle is the set of all points at a fixed distance, called the radius, from a fixed point, called the centre (center). ... The zenith is the point in the sky which appears directly above the observer. ... Horizon The horizon is the line that separates earth from sky. ...
This article incorporates text from the 1911 Encyclopædia Britannica, which is in the public domain. Supporters contend that the Eleventh Edition of the Encyclopædia Britannica (1911) represents the sum of human knowledge at the beginning of the 20th century; indeed, it was advertised as such. ... The public domain comprises the body of all creative works and other knowledge—writing, artwork, music, science, inventions, and others—in which no person or organization has any proprietary interest. ...
Mersenne Numbers, were the focus of most of the early searches for large primes.
BS96, p309]) include the primes 999999000001 (1851, "found" by Looff) and 6728042130721 (1 Jan. 1855, Clausen) in their tables.
As the more recent primes have been found our estimate for finding a 10 million digit prime has been slowly decreasing and finding such a prime in 2006 seems very likely.
Prime-vertical dial, a dial in which the shadow is projected on the plane of the primevertical.
Prime-vertical transit instrument, a transit instrument the telescope of which revolves in the plane of the primevertical, used for observing the transit of stars over this circle.
To apply priming to, as a musket or a cannon; to apply a primer to, as a metallic cartridge.
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