flat earth slope
121relativity — /rel euh tiv i tee/, n. 1. the state or fact of being relative. 2. Physics. a theory, formulated essentially by Albert Einstein, that all motion must be defined relative to a frame of reference and that space and time are relative, rather than… …
122Relativistic beaming — Doppler beaming redirects here. For other uses named for Christian Doppler, see Doppler (disambiguation). Only a single jet is visible in M87. Two jets are visib …
123architecture — /ahr ki tek cheuhr/, n. 1. the profession of designing buildings, open areas, communities, and other artificial constructions and environments, usually with some regard to aesthetic effect. Architecture often includes design or selection of… …
124Everest, Mount — Tibetan Chomolungma Nepali Sagarmatha Peak on the crest of the Himalayas, southern Asia. The highest point on Earth, with a summit at 29,035 ft (8,850 m), it lies on the border between Nepal and Tibet (China). Numerous attempts to climb Everest… …
125Barrow, Alaska — Infobox Settlement official name = Barrow settlement type = City nickname = motto = imagesize = image caption = image map caption = mapsize = mapsize1 = map caption1 = pushpin pushpin label position = bottom pushpin map caption =Location within… …
126Star fort — A star fort or trace italienne is a fortification in the style that evolved during the age of black powder, when cannons came to dominate the battlefield, and was first seen mid 15th century in Italy. Passive ring shaped ( enceinte )… …
127Cool roof — In the world of industrial and commercial buildings, a cool roof is a roofing system that can deliver high solar reflectance (the ability to reflect the visible, infrared and ultraviolet wavelengths of the sun, reducing heat transfer to the… …
128coastal landforms — ▪ geology Introduction any of the relief features present along any coast, the result of a combination of processes, sediments, and the geology of the coast itself. The coastal environment of the world is made up of a wide variety of… …
