Roanoke Times Copyright (c) 1995, Landmark Communications, Inc. DATE: SATURDAY, October 28, 1995 TAG: 9510300089 SECTION: NATIONAL/INTERNATIONAL PAGE: A-2 EDITION: METRO SOURCE: DATELINE: BOSTON LENGTH: Short
Scientists at Boston University's Center for Remote Sensing used aerial photographs provided by the park service to do their second computer analysis of the march turnout.
The center's director, Farouk El-Baz, said Friday that the new estimate was 837,214, with a 20 percent margin of error. That means the actual number could have been as low as 670,000 or as high as 1,004,000.
The techniques used by the center were developed to count sand dunes in satellite photographs of Egypt and Kuwait.
- Associated Press
by CNB