dewitt d b (3 Ergebnisse)

Zustand: Good. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In good all round condition. Dust jacket in good condition. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,550grams, ISBN:9780709908968.

Zustand: Very Good. 1st Edition. Former library copy. Pages intact with possible writing/highlighting. Binding strong with minor wear. Dust jackets/supplements may not be included. Includes library markings. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.

First edition. Zworykin, Vladimir K. (1888-1982) and E. D. Wilson. Photocells and their application. xi, 209pp. Text illustrations. New York: John Wiley & Sons; London: Chapman & Hall, 1930. 195 x 134 mm. Original cloth, spine a bit faded, minor edgewear and scuffing. Ownership signature and notes on endpapers. Very good. First Edition. Zworykin, one of the pioneers of modern television, obtained his Ph.D. in 1926 from the University of Pittsburgh with a thesis on the improvement of photoelectric cells. Also known as "electric eyes," photoelectric cells are devices that convert light energy into electrical energy; they are used as switches, light detectors, light meters and power sources. Zworykin spent several years at Westinghouse Labs in Pittsburgh working on various applications of photoelectric cells-including their possible use in television and image transmission-before leaving Westinghouse in 1930 to take charge of television development at RCA. .