What are Gus Casely-Hayford's views of Africans in popular culture? How does "word", "symbol", and "song" work together and what makes them so powerful?<br/>
Africa, The Unknown History of Humankind, Part 5

Coral reefs cover less than one percent of the seafloor, and yet they're home to a quarter of all marine life, making them some of the most biodiverse places on Earth. But their future looks bleak. Decades of environmental threats like...

The world is at the verge of a crisis, where the antibiotics we used to treat infections for decades are becoming useless. It takes a historian and a microbiologist to possibly save the day.

This live-action video program is about the word Inertia. The program is designed to reinforce and support a student's comprehension and retention of the word Inertia through use of video footage, photographs, diagrams and colorful,...

Newton's first law tells us that an object in motion will remain in motion, but we don't really see that on earth, do we? If you throw a ball, or push a hockey puck, these things do eventually stop. Why? To answer this we must learn...