This collection of puzzles is taken from the author's column in "Scientific American" magazine and includes such puzzles as - if a piece of solid iron in the form of a doughnut is heated, will the diameter of its hole get larger or smaller?
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Book Description Vintage, 1977. Book Condition: New. Brand New, Unread Copy in Perfect Condition. A+ Customer Service!. Bookseller Inventory # ABE_book_new_039472349X
Book Description Vintage. Paperback. Book Condition: New. Bookseller Inventory # DADAX039472349X
Book Description Vintage. Paperback. Book Condition: New. Bookseller Inventory # P11039472349X