Assignment Discovery

Explores how applied physics relates to the design and construction of roller coasters. Describes the physical dynamics of a roller coaster, explaining the role of potential and kinetic energy, friction, gravity, momentum and acceleration. Also introduces how the inertial effects, known as G forces, give roller coaster riders a thrilling experience.

The world witnessed its share of battles and conflicts during the 20th century. In All Quiet on the Western Front, explore the changes experienced by the main character and examine why his story is an enduring antiwar novel. World War II: War in the Pacific features interviews with Japanese and American veterans and explosive combat footage to create and unsparing account of the complexities and brutalities of war. In a stirring account of the Japanse attack on Pearl Harbor, learn details of the surprise attack and America's entry into World War II. Learn what set the stage for The Korean War, why President Truman and General MacArthur clashed, and how the shadow of China's Chairman Mao grew as events progressed. In The Vietnam War, see powerful footage that depicts a president struggling to bring an honorable conclusion to a war abroad, while scandal and subterfuge deal a dishonorable blow to his presidency.

Ever dance in the streets with a skeleton? Tag along with three young travelers as they explore the roots of two important celebrations--Mexico's Day of the Dead and Belize's tasty annual Cashew Festival.

The place that Teddy Roosevelt felt was too majestic for man to meddle with offers far more than breathtaking vistas. The canyon supports a vast, fragile ecosystem that begs for preservation. Journey down the Colorado River with esteemed naturalist John Powell to learn about both the life here now, and the Native American life it supported for thousands of years.

Shows how humans were able to harness one of nature's greatest forces, how electric power is delviered to consumers, and how scientists use electricity in innovative ways.

[Pt.1] Looks at the history of the Israeli-Palestinian conflict and the historical claims to the land made by both sides. [Pt.2] Examines the obstacles that have prevented Israel and the Palestinians from being able to compromise. (Part 1:46 min.; Part 2: 51 min.).

Looks at the issues facing South Africa in the post-apartheid era. Explores the long road to South Africa's hard-won peace and the country's struggles to bring an end to the economic hardships and psychological pain caused by apartheid. (51 min.).

Looks at how prehistoric peoples spread across the globe and how man altered the balance of Earth's fragile ecosystems in a short period of time. Examines what the alternatives might be for the future, such as a man-made biosphere and making other planets inhabitable. (52 min.).

Profiles the American Conservation Movement. Discover how Sierra Club founder John Muir seeded a grassroots movement before the turn of the century and created a philosphy of living with nature.

During the Indian Wars between 1866 and 1891, ten thousand African American soldiers fought for their country in the wester territories, yet had the overcome the prejudices of both the armed forces and American society.