print email comment close Spies That Fly URL: http://www.pbs.org/wgbh/nova/spiesfly/ Description: Companion site to the PBS NOVA special about "a new generation of pilotless planes [that] fly, spy, and bomb in places too risky for human pilots." Includes an illustrated timeline that explores the history of unmanned aerial vehicles from Civil War hot air balloons to miniature flying robots. Site also includes historical spy photos, information on radar imaging, a program transcript, and a teacher's guide. Publisher: PBS Online; WGBH Educational Foundation Extra Keywords UAV, surveillance image, synthetic aperture radar, SAR, Public Broadcasting Service Library of Congress Subject Headings: Drone aircraft Espionage Remote-sensing images LII Database Information: Record 639 created by Sybil Finemel on 07/28/2003 Last modification on 08/06/2003 Published: 07/28/2003   Funding agency: California State Library LII Item ID: http://lii.org/cs/lii/view/item/639