ISBN 10: 039472349X / 0-394-72349-X
ISBN 13: 9780394723495
Publication Date: 1977
About this title:
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?
"About this title" may belong to another edition of this title.