Píseň jižních Čech

Physical features such as gulf, peninsula, island, etc, are defined and basic principles of using colors to show elevation are illustrated with...

Documentary film about the Czechoslovak natural science group's expedition to Iceland in June 1948.

Views of the earth from the ground, from a plane and from a space ship show major features of the land, the oceans and the atmosphere.

Uses animation, wave tank, live-action photography, and underwater models to show how waves develop, how coastlines are shaped, and to describe the...

Through animation, maps of the same scale and projection are combined to show relationships between natural features of the earth, human use, and...

Many geneticists and archaeologists have long surmised that human life began in Africa. Dr. Spencer Wells, one of a group of scientists studying the...

Travel across Vietnam on a breathtaking cultural and historical journey. Uncover ancient Chinese influences on Vietnamese traditions and striking...