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71Inventions 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.… …
72Dry sump — A dry sump is a lubricating motor oil management method for four stroke and large two stroke piston internal combustion engines that uses external pumps and a secondary external reservoir for oil, as compared to a conventional wet sump system.… …
73Dredging — Dredge redirects here. For other uses, see Dredge (disambiguation). Dredgers redirects here. For the German municipality, see Dreggers. Dredging is an excavation activity or operation usually carried out at least partly underwater, in shallow… …
74Drain (plumbing) — Pool drain vortex as viewed from above the water at Grange Park wading pool …
75Michael Masley — (born September 22, 1952 in Trenton, Michigan, USA) is known for his musical work on the Hungarian cymbalom. His unique method of playing the instrument comes from his invention of the bowhammer, a cross between a fiddle bow and a dulcimer hammer …
76Dref Friction Spinning — Friction Spinning or Dref Spinning is a textile technology that allows very heavy count yarns and technical core wrapped yarns to be manufactured. These are most commonly used in mop yarns, flame retardants and high tech fancy yarns such as… …
77Abortion — Induced abortion Classification and external resources ICD 10 O04 …
78Jerry and Jumbo — Tom and Jerry series Directed by William Hanna Joseph Barbera …
79Protection of exposed concrete — is necessary to prolong its service life. A 120 year design life for concrete infrastructure has become increasingly common. Without early preventive maintenance this design life target may be optimistic. The design service life of reinforced… …
80Mechanical Beasts — Creator Go Nagai Profile Weapons Varied (rays, missiles, blades, acids, sound waves, drills, swords, axe …
