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Destructive Forces [electronic resource]

National Geographic Television & Film
Format
Video; Computer Resource; Online Video; Online
Summary
Why do mountains tend to have a triangular shape? How much rain must fall to start a river? How do single grains of sand accumulate into a dune? This episode from the Amazing Planet series answers those and other geologic questions by capturing the beauty born of eons of unceasing environmental violence as water, wind, and ice erode the surface of the Earth into an ever-changing sculpture of planetary proportion.
Release Date
2010
Run Time
52 min.
Language
English
Rating
9 & up
Notes
  • Encoded with permission for digital streaming by Films Media Group on July 01, 2010.
  • Films on Demand is distributed by Films Media Group for Films for the Humanities & Sciences, Cambridge Educational, Meridian Education, and Shopware.
Series
Amazing Planet
Amazing planet
Contents
  • Nature's Elements (3:20)
  • History of the Grand Canyon (4:19)
  • Natural, Sculptural Displays (2:28)
  • Destruction and Regeneration (5:26)
  • Niagara Falls (5:17)
  • Waterfalls and Cataracts (4:56)
  • Caves: Water's Patient Power (3:55)
  • Water: Frozen Brutality (4:54)
  • Glacial Catastrophes (1:39)
  • End of the Age of Glaciers (2:33)
  • Nature's Elements: Wind (2:52)
  • Global Shifting Sands (3:54)
  • America's Dust Bowl (2:29)
Published
New York, N.Y. : Films Media Group, [2010], c2007.
Publisher no.
  • 40732s Films Media Group
  • 40735 Films Media Group
Access Restriction
Access requires authentication through Films on Demand.
Description
1 streaming video file (52 min.) : sd., col., digital file.
Mode of access: Internet.
System requirements: FOD playback platform.
Technical Details
  • Access in Virgo Classic
  • Staff View

Availability