Bücher von John Driscoll

This collection of over 50 puzzles and logical problems includes some classic and some new problems. There are short puzzles that require nomathematical knowledge and some that require rigour and mathematical logic. Great fun, yet challenging.A Hen and a Half is also unique in offering different levels of answer and explanation in the book, and a extra level in the ebook that is FREE withthis book. It thus caters for those:¿who want the answer and explanation for the given problem, AND those¿who want that explanation in depth and for the type of problem.So there's some serious mathematics there too, and techniques galore to solve problems in the future.Accessible, well illustrated and in colour, the book has a unique, friendly readable style. Any puzzle lover will enjoy it and be challenged.The title comes from the author's simple challenge:If a Hen and a half, lay an Egg and a half in a Day and a half, how many eggs would 3 hens lay in a week?Get working...!

The Battle of the Bulge was the largest land battle in U.S. history, a battle that cost the United States 20,000 lives and stopped the last German offensive of World War II. The authors, both residents of Helena, Montana, studied the history of this battle and walked the critical sectors of the battlefield, examining examples of American heroism and looking for evidence of involvement by Montanans. Their objective was to better understand this significant battle and how our soldiers managed to stop an enemy steamroller, overcoming their fears while outnumbered more than three-to-one. This book examines the eleven critical junctures of the battle and includes personal stories of Montana veterans.