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America's first eyes in space

Article Abstract:

The US government declassified the records of the spy satellite Discoverer XIII and the 800,000 photographs and 2.1 million feet of film it took since 1960. The photographs will be useful for studies of urbanization, desertification and other changes in the environment since 1960.

Author: Brown, Stuart F.

Publisher: Time, Inc.
Publication Name: Popular Science
Subject: Science and technology
ISSN: 0161-7370
Year: 1996

Usage, Reports, Reconnaissance satellites, Military reconnaissance, Espionage, American, American espionage

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A new view of America

Article Abstract:

The US Geological Survey has used digital image-generation technology to produce the most accurate topographic map in existence. The map was based on 12 million data points representing elevation measurements. Formulation of the map is discussed.

Author: Brown, Stuart F.

Publisher: Time, Inc.
Publication Name: Popular Science
Subject: Science and technology
ISSN: 0161-7370
Year: 1992

United States, Innovations, Portrayals, Topographic maps

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