originate a hole
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Pate Hole — The main Pate Hole cave was surveyed in 1960 by Phil Davies and Jack Whaddon. Later explorations have shown that the cave runs approximately 30m below the surface, for approximately 1000m. [cite web last = first = authorlink = coauthors = title… … Wikipedia
reamer — /ree meuhr/, n. 1. any of various rotary tools, with helical or straight flutes, for finishing or enlarging holes drilled in metal. 2. any bladelike pick or rod used for scraping, shaping, or enlarging a hole: a pipe reamer. 3. a kitchen utensil… … Universalium
List of common misconceptions — This incomplete list is not intended to be exhaustive. This is a list of current, widely held, false ideas and beliefs about notable topics which have been reported by reliable sources from around the world. Each has been discussed in published… … Wikipedia
Gamma ray burst — [ GRB 990123 taken on January 23, 1999. The burst is seen as a bright dot denoted by a square on the left, with an enlarged cutout on the right. The object above it with the finger like filaments is the originating galaxy. This galaxy seems to be … Wikipedia
Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… … Universalium
electromagnetic radiation — Physics. radiation consisting of electromagnetic waves, including radio waves, infrared, visible light, ultraviolet, x rays, and gamma rays. [1950 55] * * * Energy propagated through free space or through a material medium in the form of… … Universalium
Seyfert galaxy — Seyfert galaxies are a class of galaxies with nuclei that produce spectral line emission from highly ionized gascite book author=L. S. Sparke, J. S. Gallagher III year=2007 title=Galaxies in the Universe: An Introduction publisher=Cambridge… … Wikipedia
Astronomy — (from the Greek words astron (ἄστρον), star , and nomos (νόμος), law ) is the scientific study of celestial objects (such as stars, planets, comets, and galaxies) and phenomena that originate outside the Earth s atmosphere (such as the cosmic… … Wikipedia
List of Doctor Who planets — This is a list of planets, fictional or otherwise, that are mentioned in the British science fiction television series Doctor Who and its spinoff literature. : Top 0–9 A B C D E F G H I J K L M N O P Q R S T U V W … Wikipedia
star — starless, adj. /stahr/, n., adj., v., starred, starring. n. 1. any of the heavenly bodies, except the moon, appearing as fixed luminous points in the sky at night. 2. Astron. any of the large, self luminous, heavenly bodies, as the sun, Polaris,… … Universalium
astronomy — /euh stron euh mee/, n. the science that deals with the material universe beyond the earth s atmosphere. [1175 1225; ME astronomie ( < AF) < L astronomia < Gk. See ASTRO , NOMY] * * * I Science dealing with the origin, evolution, composition,… … Universalium