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.
The Weather Experiment
The Pioneers Who Sought to See the Future
Modern weather forecasts owe their existence to the eclectic group of 19th-century mavericks who created meteorological science; they included such figures as Sir Francis Beaufort, who quantified winds, the pharmacist Luke Howard, who classified clouds, and Admiral Robert FitzRoy, who issued Britain’s first storm warning in 1861. This book describes how they developed their radical theories, devised new instruments and attempted to convince governments of the moral duty to give the public advance warning of storms.