The Salvation Army is a very important international organization. Around the world this agency's volunteers and staff are working to provide food, clothing and support to the needy. Have you More →

The rover Perseverance is damaged and stranded in the windswept sand seas of Mars. The team of interplanetary explorers locates the rover, but Dr. Thomas is unable to repair it in the field… More →

This book relays the factual details of the story of the San Francisco earthquake of 1906. The narrative provides multiple accounts of the event, and readers learn details through the point… More →

This book discusses the science behind bridge collapses and their effects. The chapters examine historical bridge collapses, explain how bridges are designed and built, and show how… More →

This book discusses the science behind various elements of downhill skiing, particularly the carve turn. The chapters examine case studies of famous sports moments, explain how the athletes… More →

This book discusses the science behind various elements of surfing, particularly the cutback. The chapters examine case studies of famous sports moments, explain how the athletes perform… More →

This book discusses the science behind various elements of baseball, particularly a fastball. The chapters examine case studies of famous sports moments, explain how the athletes perform… More →

This book discusses the science behind various elements of swimming, particularly a flip turn. The chapters examine case studies of famous sports moments, explain how the athletes perform… More →