Andrew Dunn

Backpackers on Wheels is a manual for travel organizing, essentially a "how-to" guide. It is directed at first-time travelers and experienced travelers alike. First-time travelers will benefit from this book by avoiding potholes in organizing their travel. Experienced travelers will benefit from this book by streamlining their travel arrangements and perhaps widening their travel horizons. This book is a practical guide to contemporary travel in a...

Describes how simple machines utilize the principle of the slope or incline to plow fields, unlock doors, and lift heavy loads.

A biography of the Polish-born scientist, focusing on her struggle to get an education, her discovery of radium and radiation, her Nobel prizes, and the marriage to her collaborator, Pierre Curie.