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  2. Staff (building material) - Wikipedia

    en.wikipedia.org/wiki/Staff_(building_material)

    It is chiefly made of plaster of Paris (powdered gypsum), with a little cement, glycerin, and dextrin, mixed with water until it is about as thick as molasses. When staff is cast in molds, it can form any shape. To strengthen it, coarse cloth or bagging, or fibers of hemp or jute, are put into the molds before casting. It becomes hard enough in ...

  3. Plaster - Wikipedia

    en.wikipedia.org/wiki/Plaster

    On heating to 180 °C (350 °F), the nearly water-free form, called γ-anhydrite (CaSO 4 ·nH 2 O where n = 0 to 0.05) is produced. γ-anhydrite reacts slowly with water to return to the dihydrate state, a property exploited in some commercial desiccants. On heating above 250 °C (480 °F), the completely anhydrous form called β-anhydrite or ...

  4. USG Corporation - Wikipedia

    en.wikipedia.org/wiki/USG_Corporation

    In 1909, Avery led the USG acquisition of the Sackett Plaster Board Company, [13] inventor of Sackett Board, which was a panel made of multiple layers of plaster and paper. Patented by USG in 1912, a new manufacturing process produced boards with a single layer of plaster and paper that could be joined flush along a wall with a relatively ...

  5. Plasterwork - Wikipedia

    en.wikipedia.org/wiki/Plasterwork

    Depending on the setting time of the plaster. once the moisture of the plaster starts to be drawn by the board a second pass is made. this is called knocking down. it is much like applying paint with a roller in wrist action and purpose. to smooth out any lines and fill in any major voids that will make extra work once the plaster starts to ...

  6. Lustron house - Wikipedia

    en.wikipedia.org/wiki/Lustron_house

    Led by Chicago industrialist and inventor Carl Strandlund, who had worked with constructing prefabricated gas stations, Lustron offered a home that would "defy weather, wear, and time." [ 2 ] Strandlund's Lustron Corporation , a division of the Chicago Vitreous Enamel Corporation, set out to construct 15,000 homes in 1947 and 30,000 in 1948. [ 1 ]

  7. American historic carpentry - Wikipedia

    en.wikipedia.org/wiki/American_historic_carpentry

    Used in the United States predominantly in early French forts and settlements along the Mississippi River, though examples also occur in other states including Maine, New York, Pennsylvania, Delaware, Ohio, Wyoming, Maryland, and Michigan where it is the construction method of oldest house in the state (Navarre-Anderson Trading Post, 1789).

  8. State of emergency - Wikipedia

    en.wikipedia.org/wiki/State_of_emergency

    Democracies use states of emergency to manage a range of situations from extreme weather events to public order situations. Dictatorial regimes often declare a state of emergency that is prolonged indefinitely for the life of the regime, or for extended periods of time so that derogations can be used to override human rights of their citizens usually protected by the International Covenant on ...

  9. Chicago Federal Building - Wikipedia

    en.wikipedia.org/wiki/Chicago_Federal_Building

    The rotunda's 100 ft (30 m) diameter made it larger than that of the United States Capitol in Washington, D.C. [4] The federal building was also the tallest capitol-style building constructed in Chicago, with the exception of the 1893 World's Columbian Exposition buildings, most of which were demolished. Under the dome was a large public space ...