Provides information on the development of various technical advances, simple machines and how they work, and the principles and techniques of photography and the computer, and suggests related activities.
Presents the history of early human innovations, from tools and cooking utensils to early transportation vehicles and contraceptives, along with photographs, diagrams, reconstructions, and maps.
Draws on cutting-edge scientific findings to chronicle the history of biological life, exploring a wide range of clues from gene sequences to the atomic structures of proteins to identify 10 key evolutionary developments that enabled ...
Another prominent activist and the founder of Planned Parenthood, Margaret Sanger (1879–1966) was born into a Roman Catholic family. Her mother had 18 pregnancies that resulted in 11 live births, but died in her forties from ...
Encourage students to take an in-depth view of the people and events of specific eras of American history.
Offers historical facts about a number of popular toys, including Mr. Potato Head, Raggedy Ann, Play-Doh, and the Slinky.
The book presents thirty great Chinese inventions, both ancient and modern, which are original, distinct, have made outstanding contributions and had extensive influence in China and around the globe.
The story of each invention is interwoven with that of the life of its inventor. Through these stories the reader learns how big things are brought about, and on the traits of mind and heart which make for success.
Presents inventions from the twentieth-century including the microwave, cellophane, assembly lines, and more.
Great Inventions and Where They Came From