high-volume grinding
51Inventions in medieval Islam — A significant number of inventions were developed in the medieval Islamic world, a geopolitical region that has at various times extended from Al Andalus and Africa in the west to the Indian subcontinent and Malay Archipelago in the east.… …
52dinosaur — /duy neuh sawr /, n. 1. any chiefly terrestrial, herbivorous or carnivorous reptile of the extinct orders Saurischia and Ornithischia, from the Mesozoic Era, certain species of which are the largest known land animals. 2. something that is… …
53Bruxism — Infobox Disease Name = PAGENAME Caption = DiseasesDB = 29661 ICD10 = ICD9 = ICDO = OMIM = MedlinePlus = 001413 eMedicineSubj = eMedicineTopic = MeshID = Bruxism (from the Greek βρυγμός (brugmós), gnashing of teeth ) is the grinding of the teeth,… …
54Homeopathy — Homeopathy: coined in German from Greek hómoios ὅμοιος like + páthos πάθος suffering Oxford English Dictionary …
55Drill bit — For the fictional character, see Drill Bit (Transformers). For the cancelled skyscraper nicknamed Drill bit, see Chicago Spire. For the types used in drilling wells, see Well drilling. From top to bottom: Spade, lip and spur (brad point), masonry …
56Effects of MDMA on the human body — This article discusses the effects of MDMA (3,4 methylenedioxy N methylamphetamine, commonly known as Ecstasy ) on the human brain and body. More general information on MDMA, such as history and legal status, can be found in the main entry for… …
57Italy — • In ancient times Italy had several other names: it was called Saturnia, in honour of Saturn; Enotria, wine producing land; Ausonia, land of the Ausonians; Hesperia, land to the west (of Greece); Tyrrhenia, etc. The name Italy, which seems to… …
58hand tool — any tool or implement designed for manual operation. * * * Introduction any of the implements used by craftsmen in manual operations, such as chopping, chiseling, sawing, filing, or forging. Complementary tools, often needed as auxiliaries to… …
59agriculture, origins of — Introduction the active production of useful plants or animals in ecosystems that have been created by people. Agriculture has often been conceptualized narrowly, in terms of specific combinations of activities and organisms wet rice production… …
60Cement kiln — Cement kilns are used for the pyroprocessing stage of manufacture of Portland and other types of hydraulic cement, in which calcium carbonate reacts with silica bearing minerals to form a mixture of calcium silicates. Over a billion tonnes of… …
