By Martin Gardner
Aha! perception demanding situations the reader's reasoning energy and instinct whereas encouraging the advance of 'aha! reactions'.
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Extra resources for Aha! Insight
The, inscription is nothing more TANGRAMS, PART 1 31 than a caption under the tangrams of two men. The caption reads: "Two men facing each other and drinking. " N o one knows when tangrams originated. The earliest reference known is a book published in China in 1803. Its title, The Collected Volume ofPatterns of the Seven-Piece Puzzle, suggests earlier books. Most scholars believe the game originated in China about 1800, became an Oriental craze, and then spread rapidly to the West. The earliest Western books, says Read, were little more than copies of Chinese rice-paper booklets.
Some of the marketed variants are pictured in Professor Hoffmann’s pioneer book on mechanical puzzles, in Creative Puzzles of the World by Pieter Van Delft and Jack Botermans, and in Puzzles Old and New by Jerry Slocum and Botermans. Of special interest, because it predates any known Chinese publication, is a 32-page book published by Kyoto Chobo in Japan in 1742. It gives forty-two patterns to be made with the seven pieces obtained by dissecting a square as shown in Figure 24. The book’s title translates as The Ingenious Pieces of Sei Shonagon.
Harper & Row, 1961. Tangrams: 330 Puzzles. Ronald C. Read. Dover, 1965. Tangram Teasers. R. C. Bell. Newcastle-upon-Tyne, England (privately published), 1965. Tangrams. Peter Van Note. Charles E. Tuttle, 1966. 536 Puzzles and Curious Problems. Henry Ernest Dudeney. Scribner's, 1967 The Eighth Book of Tan. Sam Loyd. Dover, 1968 (reprint of 1903 edition). " Harry Lindgren, in Journal of Recreational Mathematics 1, July 1968, pp. 184- 192. Tangramath. Dale Seymour. Creative Publications, 1971. A Tangram Tale.