By Henry E. Dudeney
Virtually each type of mathematical or logical poser is incorporated during this striking assortment — difficulties about the manipulation of numbers; unicursal and path difficulties; relocating counter puzzles; locomotion and pace difficulties; measuring, weighing, and packing difficulties; clock puzzles; mix and workforce difficulties. Greek move puzzles, difficulties related to the dissection or superimposition of aircraft figures, issues and contours difficulties, joiner's difficulties, and crossing river difficulties significantly try out the geometrical and topological mind's eye. Chessboard difficulties, related to the dissection of the board or the situation or flow of items, age and kinship problems, algebraical and numerical difficulties, magic squares and strips, mazes, puzzle video games, and difficulties bearing on video games offers you an unparalled chance to workout your logical, in addition to your mathematical agility.
Each challenge is gifted with Dudeney's designated urbane wit and sense of paradox, and every is supplied with a clearly-written resolution — and sometimes with an fun and instructive dialogue of ways others attempted to assault it and failed. lots of the difficulties are unique creations — yet Dudeney has additionally integrated many age-old puzzlers for which he has came upon new, astounding, and customarily less complicated, solutions.
"Not simply an entertainment yet a revelation … "— THE SPECTATOR.
"The most sensible miscellaneous selection of the sort …"— NATURE.
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Additional info for Amusements in mathematics
Similarly, the hydronym Bodensee 'Lac Leman' (situated at the Swiss-German-Austrian frontier) contains a Celtic unit gone astray and later embroidered upon in much the same way, through playful association with German Boden 'bottom'. 19 Etymology Had a more experienced and cautious Forstemann used for his purpose some such neutral words as, if I may repeat myself, 'transfer' or 'reinterpretation', or else 'adjustment', he would have wrought no harm. But his romantically inspired idea of picturing the entire speech community as a sort of collective brain performing analytical operations seems, in retrospect, severely misleading.
Not surprisingly, when Schuchardt encountered Rudolf Meringer (seventeen years his junior), the two dissenters before long joined forces. Meringer, an Indo-Europeanist and Germanist by earlier specialized training, was representative enough of that group of scholars to have been entrusted by a highly respectable publishing house with preparing a turn-of-the-century introductory account of ongoing Indo-European research for the tone-setting Goschen Series, an assignment he conscientiously fulfilled.
But, all told, there is amazingly little that qualifies as etymological spade-work, except where it is inextricably interwoven with grammar. One might mention the incidental fact that the Compendious German—English dictionary (1879, 1887) which Whitney compiled with the assistance of A. H. Edgren was equipped, according to the title page, 'with notations of correspondence and brief etymologies'. Also, among his scripta minor'a, we detect one rather uncharacteristic item, on 'A botanico-philological problem' (1877), which qualifies for classification as a contribution to creative etymology.
Amusements in mathematics by Henry E. Dudeney