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  2. List of Martin Gardner Mathematical Games columns - Wikipedia

    en.wikipedia.org/wiki/List_of_Martin_Gardner...

    The polyhex and the polyabolo, polygonal jigsaw puzzle pieces 1967 Jul: Of sprouts and Brussels sprouts, games with a topological flavor 1967 Aug: In which a computer prints out mammoth polygonal factorials: 1967 Sep: Double acrostics, stylized Victorian ancestors of today's crossword puzzle: 1967 Oct: Problems that are built on the knight's ...

  3. Crossword - Wikipedia

    en.wikipedia.org/wiki/Crossword

    Crossword-like puzzles, for example Double Diamond Puzzles, appeared in the magazine St. Nicholas, published since 1873. [32] Another crossword puzzle appeared on September 14, 1890, in the Italian magazine Il Secolo Illustrato della Domenica. It was designed by Giuseppe Airoldi and titled "Per passare il tempo" ("To pass the time"). Airoldi's ...

  4. Crossword abbreviations - Wikipedia

    en.wikipedia.org/wiki/Crossword_abbreviations

    Taking this one stage further, the clue word can hint at the word or words to be abbreviated rather than giving the word itself. For example: "About" for C or CA (for "circa"), or RE. "Say" for EG, used to mean "for example". More obscure clue words of this variety include: "Model" for T, referring to the Model T.

  5. Games World of Puzzles - Wikipedia

    en.wikipedia.org/wiki/Games_World_of_Puzzles

    The last puzzle in "Pencilwise" has generally been "The World's Most Ornery Crossword," a large standard crossword puzzle which has two sets of clues spanning three pages. One set, which is revealed by folding one page in half to hide the second page, consists of "Hard" clues (three stars), while the clues under this fold are "Easy" (one star ...

  6. Will Shortz - Wikipedia

    en.wikipedia.org/wiki/Will_Shortz

    In 2013, Shortz lent his name and talents in puzzle writing and editing to a new bimonthly publication entitled Will Shortz' WordPlay, published by Penny Press. [17] He has said that his favorite crossword of all time is the Election Day crossword of November 5, 1996, designed by Jeremiah Farrell.

  7. Scale (map) - Wikipedia

    en.wikipedia.org/wiki/Scale_(map)

    Actual printed maps are produced from the projection map by a constant scaling denoted by a ratio such as 1:100M (for whole world maps) or 1:10000 (for such as town plans). To avoid confusion in the use of the word 'scale' this constant scale fraction is called the representative fraction (RF) of the printed map and it is to be identified with ...

  8. Cartographic generalization - Wikipedia

    en.wikipedia.org/wiki/Cartographic_generalization

    During the first half of the 20th century, cartographers began to think seriously about how the features they drew depended on scale. Eduard Imhof, one of the most accomplished academic and professional cartographers at the time, published a study of city plans on maps at a variety of scales in 1937, itemizing several forms of generalization that occurred, including those later termed ...

  9. Margaret Farrar - Wikipedia

    en.wikipedia.org/wiki/Margaret_Farrar

    Margaret Petherbridge Farrar (March 23, 1897 – June 11, 1984) was an American journalist and the first crossword puzzle editor for The New York Times (1942–1968). Creator of many of the rules of modern crossword design, she compiled and edited a long-running series of crossword puzzle books – including the first book of any kind that Simon & Schuster published (1924). [1]