inventions

Contains profiles of the lives and achievements of ten African-American inventors from the nineteenth and twentieth centuries, including Garrett Morgan, the creator of the gas mask and traffic signal, Elijah McCoy, the holder of over sixty patents, and Sarah Walker, a beauty product mogul.

Summarizes 100 notable inventions and discoveries of ancient and modern times, from 3,000,000 B.C. to the beginning of the twenty-first century A.D.

Three sixth-grade boys band together to build an experimental aircraft, enduring social and practical difficulties in the process.

When a very important inventor needs rescuing, Freddie Ramos activates his special sneakers and becomes a superhero.

When Katharine Tulman foils an attempt to kidnap her Uncle Tully, she finds herself caught up in international intrigue. Aware that there are people who want to turn her uncle's mechanical fish into an explosive device, and unsure of who to trust, she decides to fake her uncle's death and flee to Paris in search of Lane Moreau, her uncle's assistant.

Contains articles that describe ten world-changing events that occurred between 1820 and 1840, including the founding of Liberia as a colony, the coronation of Queen Victoria, and the discovery of rubber vulcanization, and includes a chronology, bibliography, and other study aids.

In the twenty-second century, Glennora Morgan's father has been working on a project that will allow him to penetrate the Rift border and retrieve Glennora's mother; but now that he has succeeded the Authority is suddenly trying to kill them both, and Glennora and her friend Kevin must flee into the Magisterium to escape them.

In 1852, when seventeen-year-old Katharine is sent to her family's estate to prove that her uncle is insane, she finds he is an inventor whose work creating ingenious clockwork figures supports hundreds of families, but strange occurrences soon have her doubting her own sanity.

Presents answers from approximately one hundred of the world's foremost scientific and creative thinkers to the question of what they believe is the greatest invention of the past two thousand years and why.

Matt Cruse, a student at the Airship Academy, and Kate de Vries, a young heiress, team up with a gypsy and a daring captain, to find a long-lost airship, rumored to carry a treasure beyond imagination.