non-concentric
81Orrery — This article is about the mechanical device. For the British peerage, see Earl of Orrery. A small orrery showing earth and the inner planets An orrery is a mechanical device that illustrates the relative positions and motions of the planets and… …
82Newgrange — For the Clannad song, see Newgrange (song). Archaeological Ensemble of the Bend of the Boyne * UNESCO World Heritage Site …
83Vastu Shastra — For the 2004 film, see Vaastu Shastra (film). Vastu Shastra (vāstu śāstra, also Vastu Veda, science of construction , architecture ) is an ancient doctrine which consists of precepts born out of a traditional and archaic view on how the laws of… …
84Project Stormfury — was an attempt to weaken tropical cyclones by flying aircraft into them and seeding with silver iodide. The project was run by the United States Government from 1962 to 1983.The hypothesis was that the silver iodide would cause supercooled water… …
85Keep — For other uses, see Keep (disambiguation). Donjon redirects here. For the role playing game of the same name, see Donjon (role playing game) …
86Silverpit crater — is a buried sub sea structure under the North Sea off the coast of the United Kingdom. The crater like form, named after the Silver Pit a nearby sea floor valley recognized by generations of fishermen, was discovered during the routine analysis… …
87Apollonian circles — Some Apollonian circles. Every blue circle intersects every red circle at a right angle. Every red circle passes through the two points, C and D, and every blue circle separates the two points. This article discusses a family of circles sharing a …
88Backward running — Backward running, also known as backwards running, running backwards, reverse running, retro running, or retro locomotion is the act of running in reverse, so that one travels in the direction one s back is facing rather than one s front. It is… …
89Marburg multiple sclerosis — Marburg multiple sclerosis, also known as fulminant multiple sclerosis, is considered one of the multiple sclerosis borderline diseases, which is a collection of diseases classified by some as MS variants and by others as different diseases.… …
90painting, Western — ▪ art Introduction history of Western painting from its beginnings in prehistoric times to the present. Painting, the execution of forms and shapes on a surface by means of pigment (but see also drawing for discussion of depictions in …
