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71Oil tanker — Supertanker redirects here. For the aerial firefighting aircraft, see Evergreen 747 Supertanker. The commercial oil tanker AbQaiq, in ballast Class overview Name …
72harbours and sea works — Introduction harbour also spelled harbor any part of a body of water and the manmade structures surrounding it that sufficiently shelters a vessel from wind, waves, and currents, enabling safe anchorage or the discharge and loading of… …
73rocket and missile system — ▪ weapons system Introduction any of a variety of weapons systems that deliver explosive warheads to their targets by means of rocket propulsion. Rocket is a general term used broadly to describe a variety of jet propelled missiles… …
74M1903 Springfield rifle — Infobox Weapon|is ranged=yes name= Rifle, Caliber .30, M1903 origin=flagcountry|United States type= Bolt action rifle designer= Springfield Armory design date= 1900 service= 1903–1957 users= See Users wars= World War I, World War II, Korean War,… …
75Bird flight — Flight is the main mode of locomotion used by most of the world s bird species. Flight assists birds while feeding, breeding and avoiding predators.Evolution of bird flightMost paleontologists agree that birds evolved from small theropod… …
76Bicycle and motorcycle dynamics — A computer generated, simplified model of bike and rider demonstrating an uncontrolled right turn. An …
77History of cannon — The history of cannon spans several hundred years. First used in China, they were among the earliest forms of gunpowder artillery, and over time replaced siege engines mdash;among other forms of aging weaponry mdash;on the battlefield. The first… …
78B-25 Mitchell — Infobox Aircraft name= B 25 Mitchell caption= North American B 25 Mitchell type= Medium bomber manufacturer= North American Aviation designer= John Leland Lee Atwood first flight= 19 August avyear|1940 introduction= avyear|1941 status= retired=… …
79F-22 Raptor — Infobox Aircraft name= F 22 Raptor type= Stealth Air superiority fighter national origin = United States manufacturers=Lockheed Martin Aeronautics Boeing Integrated Defense Systems caption= Two F 22 Raptors in column flight formation designer=… …
80Truss bridge — for a single track railway, converted to pedestrian use and pipeline support Ancestor Beam bridge[ …
