shell mould
41Cosmic distance ladder — * Light green boxes: Technique applicable to star forming galaxies. * Light blue boxes: Technique applicable to Population II galaxies. * Light Purple boxes: Geometric distance technique. * Light Red box: The planetary nebula luminosity function… …
42Millefiori — Millefiore redirects here. For the fictional Mafia family in the Reborn! series, see Millefiore Family. Murano Millefiori Pendant Vase, 1872 V A Museum no. 1188 1873 …
43Strake — A strake is:#part of a boat or ship. It is a horizontal strip of wooden planking or steel plating on the exterior hull of a vessel, running longitudinally along the vessel from the stem to the stern. #a device for controlling air flow over an… …
44Listed buildings in Runcorn, Cheshire — Runcorn has a number of listed buildings. [cite web |url=http://www2.halton.gov.uk/content/environment/planning/forwardplanning/listedconservationareas/listedbuildings?a=5441 |title=Listed Buildings in Halton |accessdate=2007 04 19… …
45Nutrient cycle — …
46Choctaw — For other uses, see Choctaw (disambiguation). Choctaw Choctaw portraits Total population 160,000   …
47They Might Be Giants — This article is about the musical group. For their eponymous debut, see They Might Be Giants (album). For the film, see They Might Be Giants (film). They Might Be Giants They Might Be Giants celebrate the start of their 26th year together during… …
48Hubble Space Telescope — Infobox Space telescope name = Hubble Space Telescope (HST) caption = The Hubble Space Telescope as seen from Space Shuttle Discovery during its second servicing mission (STS 82) organization = NASAESASTScI alt names = nssdc id =… …
49Sand casting — Sand casting, also known as sand molded casting, is a metal casting process characterized by using sand as the mold material. It is relatively cheap and sufficiently refractory even for steel foundry use. A suitable bonding agent (usually clay)… …
50Largest organisms — The largest organism found on earth can be measured using a variety of methods. It could be defined as the largest by volume, mass, height, or length. Some creatures group together to form a superorganism, though this cannot truly be classed as… …
