Frank Roscoe's Secret
Autor Allen Chapman Editat de 1st World Library, 1stworld Libraryen Limba Engleză Paperback
Toate formatele și edițiile | Preț | Express |
---|---|---|
Paperback (3) | 75.46 lei 38-44 zile | |
CreateSpace Independent Publishing Platform – | 100.42 lei 22-36 zile | |
Echo Library – | 75.46 lei 38-44 zile | |
1st World Library – | 79.29 lei 43-57 zile | |
Hardback (1) | 171.47 lei 43-57 zile | |
1st World Library – | 171.47 lei 43-57 zile |
Preț: 79.29 lei
Nou
Puncte Express: 119
Preț estimativ în valută:
15.17€ • 15.76$ • 12.60£
15.17€ • 15.76$ • 12.60£
Carte tipărită la comandă
Livrare economică 03-17 februarie 25
Preluare comenzi: 021 569.72.76
Specificații
ISBN-13: 9781421821160
ISBN-10: 1421821168
Pagini: 188
Dimensiuni: 140 x 216 x 11 mm
Greutate: 0.25 kg
Editura: 1st World Library
ISBN-10: 1421821168
Pagini: 188
Dimensiuni: 140 x 216 x 11 mm
Greutate: 0.25 kg
Editura: 1st World Library
Notă biografică
It is very appropriate at this moment when radio has taken the country by storm, and aroused an enthusiasm never before equaled, that the possibilities for boys in this art should be brought out in the interesting and readable manner shown in the first book of this series. Radio is still a young science, and some of the most remarkable advances in it have been contributed by amateurs - that is, by boy experimenters. It is never too late to start in the fascinating game, and the reward for the successful experimenter is rich both in honor and recompense. Just take the case of E. H. Armstrong, one of the most famous of all the amateurs in this ountry. He started in as a boy at home, in Yonkers, experimenting with home-made apparatus, and discovered the circuit that has revolutionized radio transmission and reception. His circuit has made it possible to broadcast music, and speech, and it has brought him world-wide fame.