Number Treasury 3
Investigations, Facts and Conjectures About More than 100 Number Families
Written as a resource for both teachers and students, this enlarged third edition of Number Treasury is designed to guide readers through the steps that will help them to think critically, to provide explanations and to formulate conjectures about different families of positive integers. Its 137 exercises and 28 'investigations', at three levels of difficulty, cover such intriguing topics as magic squares, palindromic numbers and twin primes. Detailed solutions are provided at the back of the book.
Crowood Metalworking Guides
Aimed at the amateur enthusiast or model engineer, this overview of the properties of commonly used metals includes advice on material selection, a review of the micro-structures and performance of metals and case studies on steam locomotive boilers, model aero engines and two-stroke motorcycle engines.