Arctic & Antarctica

Arctic Warming
Jonathan Waterman
November 5, 2007
00:58:10
In 2006, National Geographic sent Jonathan Waterman to investigate the Arctic National Wildlife Refuge.
Exploring the Island of South Georgia, Antarctica
Tim Carr
February 8, 2007
01:21:26
Tim and Pauline Carr give a breathtaking virtual yacht tour of the South Georgia Island area of Antartica, where they have lived for 14 years. In this presentation the Carrs circumnavigate the island with their audience, capturing some of the most spectacular scenery in the world.
Audio-only
Exploration to the Ends of the Earth: Roald Amundsen
James P. Delgado
October 9, 2005
01:06:40
In 1905, Norwegian explorer Roald Amundsen completed the first ever transit of the fabled Northwest Passage, culminating a centuries long quest that had claimed ships and lives.
Was Einstein Right?
Clifford Will
October 5, 2005
01:01:05
Clifford Will discusses how the most celebrated scientific theory of the 20th century held up under the exacting scrutiny of planetary probes, radio telescopes and atomic clocks.