tube cleaning system
81Inventions 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.… …
82Wikipedia:Reference desk/Computing — The Wikipedia Reference Desk covering the topic of computing. Computing #eee #f5f5f5 #eee #aaa #aaa #aaa #00f #36b #000 #00f computing Wikipedia:Reference de …
83Deepwater Horizon oil spill — 2010 oil spill and BP oil spill redirect here. For other oil spills in 2010, see 2010 oil spill (disambiguation). For the 2006 oil spill involving BP, see Prudhoe Bay oil spill. For the drilling rig and explosion, see Deepwater Horizon… …
84DYE Precision — DYE redirects here. For other uses, see Dye (disambiguation). Since its founding in 1994 by Dave Dehaan, DYE Precision has grown into one of the biggest manufacturers of paintball equipment in the world. Based in San Diego, California, DYE has… …
85lighthouse — /luyt hows /, n., pl. lighthouses / how ziz/. 1. a tower or other structure displaying or flashing a very bright light for the guidance of ships in avoiding dangerous areas, in following certain routes, etc. 2. either of two cylindrical metal… …
86Ocean thermal energy conversion — Temperature differences between the surface and 1000m depth in the oceans Ocean Thermal Energy Conversion (OTEC) uses the difference between cooler deep and warmer shallow or surface ocean waters to run a heat engine and produce useful work,… …
87Fish — are aquatic vertebrate animals that are typically ectothermic (previously cold blooded), covered with scales, and equipped with two sets of paired fins and several unpaired fins. Fish are abundant in the sea and in fresh water, with species being …
88Hazardous waste in the United States — Under United States environmental policy, a hazardous waste is a waste (usually a solid waste) that has the potential to:*cause, or significantly contribute to an increase in mortality or an increase in serious irreversible, or incapacitating… …
89Contact lens — Contacts redirects here. For the software application, see Address book. A pair of contact lenses, positioned with the concave side facing upward …
90Ear — The ear is the sense organ that detects sounds. The vertebrate ear shows a common biology from fish to humans, with variations in structure according to order and species. It not only acts as a receiver for sound, but plays a major role in the… …
