flat disk
81Project 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… …
82Einstein–Cartan theory — in theoretical physics extends general relativity to correctly handle spin angular momentum. As the master theory of classical physics general relativity has one known flaw: it cannot describe spin orbit coupling , i.e., exchange of intrinsic… …
83Galaxy — This article is about the astronomical structure. For other uses, see Galaxy (disambiguation). NGC 4414, a typical spiral galaxy in the constellation Coma Berenices, is about 55,000 light years in diameter and approximately 60 million light… …
84Joint — A joint is the area where two bones are attached for the purpose of motion of body parts. A joint is usually formed of fibrous connective tissue and cartilage. An articulation or an arthrosis is the same as a joint. Joints are grouped according… …
85Unidentified flying object — UFO redirects here. For other uses, see UFO (disambiguation). Photograph of alleged UFO, New Jersey, July 31, 1952 A term originally coined by …
86Drum memory — of a Polish ZAM 41 computer Computer memory types Volatile RAM DRAM (e.g., DDR SDRAM) SRAM …
87Miniature UAVs — are UAVs ranging from micro air vehicles (MAVs) that can be carried by an infantryman, to man portable UAVs that can be carried and launched like an infantry anti aircraft missile.MAVs MesicoptersThe notion that small, even very small, UAVs might …
88Crown glass (window) — This article is about the window glass. For the optical glass, see Crown glass (optics). Crown Glass Crown glass was an early type of window glass. In this process, glass was blown into a crown or hollow globe. This was then transferred from the… …
89Miniature UAV — An EMT Aladin of the German Army A miniature UAV or Small UAV (SUAV),[1] is an unmanned aerial vehicle small enough to be man portable. Miniature UAVs range from micro air vehicles (MAVs) that can be carried by an infantryman, to man portable… …
90crown glass — noun 1. a glass blown into a globe which is later flattened and spun to form a disk • Hypernyms: ↑glass 2. optical glass of low dispersion and low refractive index • Syn: ↑optical crown, ↑optical crown glass • Hypernyms: ↑optical glass …
