Railsback's GEOL 1122 students are assigned to view/read the following Powerpoint file prior to Lecture 26:
Changing the World
The file can be viewed using Microsoft Powerpoint (available in most UGA computer labs),
using Microsoft Powerpoint Viewer (which can be downloaded for free from Microsoft), or
using the Presentation module of Open Office (which can be downloaded for free from OpenOffice.org .
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