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51Sistine Chapel ceiling — The Sistine Chapel ceiling, painted by Michelangelo between 1508 and 1512, is one of the most renowned artworks of the High Renaissance. The ceiling is that of the large Sistine Chapel built within the Vatican by Pope Sixtus IV, begun in 1477 and …
52Grasshopper — Taxobox name = Caelifera fossil range=Late Permian Recent image width = 250px image caption = Immature grasshopper regnum = Animalia phylum = Arthropoda subphylum = Hexapoda classis = Insecta ordo = Orthoptera subordo = Caelifera subdivision… …
53Sand 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)… …
54List of Pokémon characters — This is a list of characters in the Pokémon games, animated TV series, and manga series. Save for notable specific Pokémon, the specific species of Pokémon are not listed here; they are instead detailed further at List of Pokémon. Note that this… …
55SnapPea — is free software designed to help mathematicians, in particular low dimensional topologists, study hyperbolic 3 manifolds. The primary developer is Jeffrey Weeks, who created the first version as part of his doctoral thesis. The latest version is …
56Gordon Pask — Andrew Gordon Speedie Pask (June 28, 1928, Derby – March 29, 1996, London) was an English cybernetician and psychologist who made significant contributions to cybernetics, instructional psychology, experimental epistemology and educational… …
57Euploea radamanthus — Magpie Crow Scientific classification Kingdom: Animalia Phylum …
58Molecular model — A molecular model, in this article, is a physical model that represents molecules and their processes. The creation of mathematical models of molecular properties and behaviour is molecular modelling, and their graphical depiction is molecular… …
59Kuiper quadrangle — The Kuiper quadrangle, located in a heavily cratered region of Mercury, includes the young, 55 km diameter crater Kuiper (11° S., 31.5° ), which has the highest albedo recorded on the planet (Hapke and others, 1975), and the small crater Hun Kal… …
60wind instrument — /wind/ a musical instrument sounded by the breath or other air current, as the trumpet, trombone, clarinet, or flute. [1575 85] * * * ▪ music Introduction any musical instrument that uses air as the primary vibrating medium for the… …
