D n fenner (5 Ergebnisse)

Cloth. Zustand: Very Good. No Jacket. First Edition. 128 pages, illustration plates throughout. Autobiographical account of a great idea; the concept and realisation of tree planting schemes in Algeria and Morocco. Eyewitness accounts of the political turmoil and influence of politics on the planting. Brockway evaluates her work in a wider context. Book review pasted onto front endpaper.…

Paperback. Zustand: Very Good. First Edition. Wraps. 8vo. Illustrated wraps. pp 56. 18 illustrations, tables and figures. Includes financial analysis of coffee futures, history of coffee, etc. No date, c.1955. Slight wear, neat name on cover; close VG.

Hardcover. Zustand: Brand New. 240 pages. 9.50x6.75x0.75 inches. In Stock.

Underwood Books, Grass Valley 1994. 4to. 40 pages. Illustrations in b/w and colour. Orig. cover. Near fine.

(New York), American physical Society, 1962. Lex8vo. Volume 9, No. 9, November 1, 1962 of "Physical Review Letters", In the original printed blue wrappers. A very nice and clean copy externally as well as internally, near mint. Pp. 366-368. [Entire issue: 361-414]. First edition of this groundbreaking paper in which the first demonstration of a coherent light emission from a semiconductor diode or laser diode is presented. The semiconductor laser is built upon Gallium arsenide (GaAs) which is a compound of the elements gallium and arsenic. It is a III/V semiconductor, and is used in a wide variety of devices such as microwave frequency integrated circuits, monolithic microwave integrated circuits, infrared light-emitting diodes, laser diodes, solar cells, and optical windows.Later advances and improvements in materials has made the injection laser a fundamental and essential device in many important systems such as DVD- and CD-players.…