Photography equipment and techniques; a survey of NASA developments,

Includes bibliographies

Time exposure photography of smoke plumes /

The advantages of using time exposures to "integrate" plume behavior have been known for some time. The purpose of this writing is to acquaint the research worker with more comprehensive techniques of long (up to nine hours) time exposures, with several illustrations.

Evaluation of aerial remote sensing techniques for defining critical geologic features pertinent to tunnel location and design /

Mode of access: Internet.