advanced ship concept
71Self-replicating spacecraft — The idea of self replicating spacecraft has been applied in theory to several distinct tasks . The particular variant of this idea applied to the idea of space exploration is known as a von Neumann probe. Other variants include the Berserker and… …
72F-16 Fighting Falcon — infobox Aircraft name= F 16 Fighting Falcon caption=A USAF F 16 over Iraq after refueling, 2008 type= Multirole fighter national origin = United States manufacturer= General Dynamics Lockheed Martin first flight= 2 February avyear|1974… …
73Solar sail — Solar sails (also called light sails or photon sails, especially when they use light sources other than the Sun) are a proposed form of spacecraft propulsion using large membrane mirrors. Radiation pressure is about 10 5 Pa at Earth s distance… …
74Project Orion (nuclear propulsion) — An artist s conception of the NASA reference design for the Project Orion spacecraft powered by nuclear propulsion. Project Orion was a study of a spacecraft intended to be directly propelled by a series of explosions of atomic bombs behind the… …
75Signals intelligence operational platforms by nation — This article is a subset article under the main article Signals intelligence, which addresses the unifying conceptual and technical factors and common technologies in this intelligence discipline. This article deals with current signals… …
76List of Historic Mechanical Engineering Landmarks — The following is a list of Historic Mechanical Engineering Landmarks as designated by the American Society of Mechanical Engineers since it began the program in 1971. The designation is granted to existing artifacts or systems representing a… …
77Natural scientific research in Canada — This article outlines the history of natural scientific research in Canada, including mathematics, physics, astronomy, space science, geology, oceanography, chemistry, biology, medical research and psychology. The social sciences are not treated… …
78List of Chinese inventions — A bronze Chinese crossbow mechanism with a buttplate (the wooden components have …
79Swarming (military) — Swarming is a behavior in which autonomous, or semi autonomous, units of action attack an enemy from several different directions and then regroup. Pulsing , where the units shift the point of attack, is a necessary part of swarming. Swarming is… …
80Fictional universe of Avatar — In the 2009 science fiction film Avatar, director James Cameron conceived a fictional universe in which humans seek to mine unobtanium on the fictional exoplanetary moon, Pandora. The Earth like moon is inhabited by a sapient indigenous humanoid… …
