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  2. Antonius Mathijsen - Wikipedia

    en.wikipedia.org/wiki/Antonius_Mathijsen

    He received his commission as medical officer 3d class in the Royal Netherlands Army in 1828. In 1838 he participated in the 10-day war of Belgian Revolution . While working in Haarlem at the military hospital in 1851, Mathijsen first used plaster of Paris as a bandage. [ 1 ]

  3. Gypsum block - Wikipedia

    en.wikipedia.org/wiki/Gypsum_block

    A gypsum block is made of gypsum plaster and water. The manufacturing process [1] is automated at production plants where raw gypsum (CaSO 4 ·2H 2 O) is ground and dried, then heated to remove three-quarters of the bound water and thus transformed into calcium sulfate hemihydrate (CaSO 4 ·½H 2 O), also known as gypsum plaster, stucco, calcined gypsum or plaster of Paris.

  4. Calcium sulfate - Wikipedia

    en.wikipedia.org/wiki/Calcium_sulfate

    In the form of γ-anhydrite (the anhydrous form), it is used as a desiccant. One particular hydrate is better known as plaster of Paris, and another occurs naturally as the mineral gypsum. It has many uses in industry. All forms are white solids that are poorly soluble in water. [5] Calcium sulfate causes permanent hardness in water.

  5. Mortar (masonry) - Wikipedia

    en.wikipedia.org/wiki/Mortar_(masonry)

    Gypsum mortar, also called plaster of Paris, was used in the construction of many ancient structures. It is made from gypsum, which requires a lower firing temperature. It is therefore easier to make than lime mortar and sets up much faster, which may be a reason it was used as the typical mortar in ancient, brick arch and vault construction.

  6. National Curriculum Framework 2005 - Wikipedia

    en.wikipedia.org/wiki/National_Curriculum...

    The subjects of NCF 2005 include all educational institutions in India. A number of its recommendations, for example, focus on rural schools. The syllabus and textbooks based on it are being used by all the CBSE schools and multiple state schools. [8] NCF 2005 has been translated into 22 languages and has influenced the syllabus in 17 states.

  7. The Construction and Principal Uses of Mathematical ...

    en.wikipedia.org/wiki/The_Construction_and...

    The Construction and Principal Uses of Mathematical Instruments (French: Traité de la construction et des principaux usages des instrumens de mathématique) is a book by Nicholas Bion, first published in 1709. [1] It was translated into English in 1723 by Edmund Stone. [2] The book describes ways to construct mathematical instruments.

  8. Plaster - Wikipedia

    en.wikipedia.org/wiki/Plaster

    Plaster bandages are used to construct an impression of a patient's head and neck, and liquid plaster is used to fill the impression and produce a plaster bust. The transparent material polymethyl methacrylate (Plexiglas, Perspex) is then vacuum formed over this bust to create a clear face mask which will hold the patient's head steady while ...

  9. Gypsum - Wikipedia

    en.wikipedia.org/wiki/Gypsum

    The word gypsum is derived from the Greek word γύψος (gypsos), "plaster". [9] Because the quarries of the Montmartre district of Paris have long furnished burnt gypsum (calcined gypsum) used for various purposes, this dehydrated gypsum became known as plaster of Paris. Upon adding water, after a few dozen minutes, plaster of Paris becomes ...