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Aspect Ratio: 1.78:1Audience Rating: NR (Not Rated) Binding: DVD Brand: WGBH BOSTON VIDEO EAN: 0783421413696 Format: Closed-captioned, Color, DVD-Video, NTSC Item Dimensions: Label: WGBH Boston Languages: Manufacturer: WGBH Boston MPN: WG41369 Number Of Items: 1 Publisher: WGBH Boston Region Code: 1 Release Date: January 16, 2007 Running Time: 56 minutes Studio: WGBH Boston Theatrical Release Date: March 03, 1974 Editorial Review: Product Description: A remote lake in Southeast Asia conceals evidence of Earth s greatest volcanic cataclysm of the last 100000 years. Miles beneath its placid surface lies a magma chamber that exploded so violently during the Ice Age that gases and ash may have encircled the globe and blotted out the sun for years on end. The Toba eruption may have helped kick the climate into an unprecedented freeze and perhaps even pushed ancestral human populations to the brink of extinction. In a classic science detective story NOVA pieces together the clues about this great catastrophe and probes questions raised about human evolution and Earth s fragile ecosystems. System Requirements:Running Time: 56 MinsFormat: DVD MOVIE Genre: DOCUMENTARIES/MISC. Age: 7+ UPC: 783421413696 Manufacturer No: WG41369 Average Rating:
 Rating: - Informative and easy to watchI've been buying Nova documentaries so my 7-year old son can get some science in his head in addition to the complete list of Transformers and the details of their fates. This DVD does that job admirably; he watched it quite closely, and after we watched it, it was clear that he understood the material and was enthused about it. He wasn't so enthused about living in a state adjacent to Yellowstone NP, but you can't have everything! For adults, the material is still compelling, ... Read More Rating: - awsome powerthis film is a must for everyone to see as it showes you how insucure we are our lives can be changed in such a short time |
