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This book unravels the mystery of Geometry in Origami with a unique approach: 64 Polyhedra designs, each made from a single square sheet of paper, no cuts, no glue; each polyhedron the largest possible from the starting size of square and each having an ingenious locking mechanism to hold its shape. The author covers the five Platonic solids (cube, tetrahedron, octahedron, icosahedron and dodecahedron). There are ample variations with different color patterns and sunken sides. Dipyramids and Dimpled Dipyramids, unexplored before this in Origami, are also covered.
There are a total of 64 models in the book. All the designs have an interesting look and a pleasing folding sequence and are based on unique mathematical equations. 
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$23.96 |
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 (5.0 / 5.0) Does a glass of ice water filled to the brim overflow when the ice melts? Does the energy inside a sauna increase when you heat it up? What's the best way to cool your coffee -- adding the creamer first or last? These and other challenging puzzlers provide a fresh -- and fun -- approach to learning real physics. Presenting both classic and new problems, Brainteaser Physics challenges readers to use imagination and basic physics principles to find the answers. Göran Grimvall provides detailed and accessible explanations of the solutions, sometimes correcting the standard explanations, sometimes putting a new twist on them. He provides diagrams and equations where appropriate and ends each problem by discussing a specific concept or offering an extra challenge. With Brainteaser Physics, students and veteran physicists alike can sharpen their critical and creative thinking -- and have fun at the same time.
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$12.93 |
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 (4.0 / 5.0)
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$3.83 |
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 (1.0 / 5.0) No doubt you have heard of Sudoku. The Japanese brainteaser has exploded across the UK creating a tidal wave of interest in number puzzles. Now Kakuro is here. Kakuro is Sudoku’s bigger, tougher brother - also known as Kakro or Cross Sums. In its native Japan it has millions of followers. Although its rules are simple, completing a Kakuro puzzle can be a considerable challenge. This logic puzzle uses numbers and basic arithmetic to perplex. Kakuro puzzles can come in various sizes from a simple 6 x 6 grid through to giant 30 x 30 mindbenders. The basic idea is to fill in a crossword-type grid so that each set of blank squares adds up to the total to the left or above. Only the numbers 1-9 can be used and the same number cannot be used more than once in each set.
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$5.99 |
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(4.0 / 5.0) This is the seventh book of problems and solutions from the Mathematics Competitions (published by the MAA.
Contest Problem Book VII chronicles 275 problems from the American Mathematics Contests (AMC 12 and AMC 10 for the years 1995 through 2000, including the 50th Anniversary AHSME issued in 1999. Twenty-three additional problems with solutions are included. A Problem Index classifies the 275 problems in to the following subject areas: Algebra, Complex Numbers, Discrete Mathematics (including Counting Problems), Logic, and Discrete Probability, Geometry (including Three Dimensional Geometry), Number Theory (including Divisibility, Representation, and Modular Arithmetic), Statistics, and Trigonometry. For over 50 years many excellent exams have been prepared by individuals throughout our mathematical community in the hope that all secondary school students will have an opportunity to participate in these problem solving and enriching mathematics experiences. The American Mathematics Contests are intended for everyone from the average student at a typical school who enjoys mathematics to the very best student at the most special school.
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$49.00 |
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 (3.5 / 5.0)
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$3.70 |
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(4.0 / 5.0) This book features a unique approach to the teaching of mathematical logic by putting it in the context of the puzzles and paradoxes of common language and rational thought. It serves as a bridge from the author's puzzle books to his technical writing in the fascinating field of mathematical logic. Using the logic of lying and truth-telling, the author introduces the readers to informal reasoning preparing them for the formal study of symbolic logic, from propositional logic to first-order logic, a subject that has many important applications in philosophy, mathematics, and computer science. The book includes a journey through the amazing labyrinths of infinity, which have stirred the imagination of mankind as much, if not more, than any other subject. As much as a textbook for undergraduate courses in logic, in particular to a liberal- arts audience, this book will succeed as a trade book for anyone who has an interest in a more rigorous understanding of rational thought.
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$39.00 |
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 (4.5 / 5.0) A pocket book of riddles, full of fun and illustrations.
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$10.94 |
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(5.0 / 5.0) This collection is a tribute to Martin Gardner by mathematicians, puzzle masters, and magicians. It was conceived and initiated in honor of his 90th birthday and is finally published as he celebrates his 94th year, maintaining the inspiring creativity that has motivated so many professional mathematicians and amateurs, who are all dedicated to his unique amalgamation of rational thought and magic. Some of the contributions celebrate the life of Martin Gardner; some tell about his influence on individuals or on the field of recreational mathematics in general; some are puzzles or tricks inspired by Martin Gardner and his work. Martin Gardner stands at the intersection of magic and mathematics. Mathematical magic, like chess, has its own curious charms, he says. [It] combines the beauty of mathematical structure with the entertainment value of a trick . Martin Gardner has been writing about magic and contributing new effects for nearly seventy years. Today, he keeps in contact with magicians like Penn and Teller by phone and receives occasional visits from magicians who come to trade notes with him. In 1999 he was named one of MAGIC Magazine s 100 most influential magicians of the twentieth century.
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$34.99 |
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How can linkages, pieces of paper, and polyhedra be folded? The authors present hundreds of results and over 60 unsolved 'open problems' in this comprehensive look at the mathematics of folding, with an emphasis on algorithmic or computational aspects. Folding and unfolding problems have been implicit since Albrecht Dürer in the early 1500s, but have only recently been studied in the mathematical literature. Over the past decade, there has been a surge of interest in these problems, with applications ranging from robotics to protein folding. A proof shows that it is possible to design a series of jointed bars moving only in a flat plane that can sign a name or trace any other algebraic curve. One remarkable algorithm shows you can fold any straight-line drawing on paper so that the complete drawing can be cut out with one straight scissors cut. Aimed primarily at advanced undergraduate and graduate students in mathematics or computer science, this lavishly illustrated book will fascinate a broad audience, from high school students to researchers.
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$37.30 |