lightweight brick
51Plaster — The term plaster can refer to plaster of Paris, lime plaster, or cement plaster. This article deals mainly with plaster of Paris.Plaster of Paris is a type of building material based on calcium sulfate hemihydrate, nominally CaSO4·0.5H2O. It is… …
52Mark Donohue — Not to be confused with Mark Donahue, the American football player. Mark Neary Donohue, Jr. (March 18, 1937 – August 19, 1975), nicknamed Captain Nice , was an American racecar driver known for his ability to set up his own race car as well as… …
53Bavarian branch lines — comprised nearly half the total railway network in Bavaria, a state in the southeastern Germany that was a kingdom in the days of the German Empire. The construction era for branch lines lasted from 1872, when the first route, from Siegelsdorf to …
54arch — arch1 /ahrch/, n. 1. Archit. a. a curved masonry construction for spanning an opening, consisting of a number of wedgelike stones, bricks, or the like, set with the narrower side toward the opening in such a way that forces on the arch are… …
55roads and highways — ▪ transportation Introduction traveled way on which people, animals, or wheeled vehicles move. In modern usage the term road describes a rural, lesser traveled way, while the word street denotes an urban roadway. Highway refers to a major… …
56Panasonic Lumix DMC-GH1 — Panasonic DMC GH1K Type Micro Four Thirds System Sensor 17.3 × 13 mm Live MOS (in 4:3 aspect ratio) Maximum …
57CHINESE ARCHITECTURE — Ancient Chinese architecture is modeled on basic principles of order and balance; wood was the first material used, supplemented later with brick. The earliest buildings were laid on foundations of packed earth; in the areas of China where… …
58CONCRETE — Concrete is a compound made from sand, gravel, and cement, while cement is a mixture of minerals that become hard when water is added, binding the sand and gravel into a solid mass. Although concrete is traditionally considered an Ancient… …
59Space colonization — Artist Les Bossinas 1989 concept of Mars mission Space colonization (also called space settlement, space humanization, or space habitation) is the concept of permanent human habitation outside of Earth. Although hypothetical at the present time,… …
60Skyscraper — For other uses, see Skyscraper (disambiguation). A skyscraper is a tall, continuously habitable building of many stories, often designed for office and commercial use. There is no official definition or height above which a building may be… …
