Although photography was already a well-established fixture of 19th century society, it was the marriage of photography and the airplane that created the new mi

"The First World War demanded revolutionary technology to break the vicious stalemate in which the armies of Europe found themselves, as soon as static, or tren

A Young Readers Edition of a compelling story of courage and triumph, this is the inspiring true story of Major Mary Jennings Hegar--a brave and determined woma

Each year in America, 2 Million criminals break into homes just like yours. Is your aim good enough to guarantee your family's safety?This book has been teachin

Featuring hundreds of black-and-white illustrations of marksmanship medals, prizes, and badges, plus a special full-color section, this encyclopedia of U.S. Arm