Audion Alpha

Wireless: From Marconi's Black-Box to the Audion (Transformations: Studies in the History of Science and Technology)

Wireless: From Marconi's Black-Box to the Audion (Transformations: Studies in the History of Science and Technology)
Publisher: The MIT Press | Pages: 272 | Publication Date: 2001-10-01 | ISBN: 0262082985 | PDF

By 1897 Guglielmo Marconi had transformed James Clerk Maxwell’s theory of electromagnetic waves into a workable wireless telegraphy system, and by 1907 Lee de Forest had invented the audion, a feedback amplifier and oscillator that opened the way to practical radio transmission. Fifteen years after Marconi’s invention, wireless had become an essential means of communication, as well as a hobby for many. This book offers a new perspective on the early days of wireless communication. Drawing on previously untapped archival evidence and recent work in the history and sociology of science and technology, it examines the substance and context of both experimental and theoretical aspects of engineering and scientific practices in the first years of this technology. It offers new insights into the relationship between Marconi and his scientific advisor, the physicist John Ambrose Fleming (inventor of the vacuum tube). It includes the full story of the infamous 1903 incident in which Marconi’s opponent Nevil Maskelyne interfered with Fleming’s public demonstration of Marconi’s syntonic (tuning) system at the Royal Institution by sending derogatory messages from his own transmitter. The analysis of the Maskelyne affair highlights the struggle between Marconi and his opponents, the efficacy of early syntonic devices, Fleming’s role as a public witness to Marconi’s private experiments, and the nature of Marconi’s "shows." It also provides a rare case study of how the credibility of an engineer can be created, consumed, and suddenly destroyed. The book concludes with a discussion of de Forest’s audion and the shift from wireless telegraphy to radio.

Trend Following with Managed Futures: The Search for Crisis Alpha  eBooks & eLearning

Posted by tarantoga at Dec. 6, 2016
Trend Following with Managed Futures: The Search for Crisis Alpha

Alex Greyserman, Kathryn Kaminski, "Trend Following with Managed Futures: The Search for Crisis Alpha"
ISBN: 1118890973 | 2015 | EPUB | 456 pages | 26 MB

X-Men - Alpha Flight #1-2 (1998) Complete  Comics

Posted by mikestoke at Dec. 5, 2016
X-Men - Alpha Flight #1-2 (1998) Complete

X-Men - Alpha Flight #1-2 (1998) Complete
English | CBR | 2 Issues | HD | 128.35 MB

Alpha Flight is called into action to save the X-Men…all of whom have been kidnapped by Hydra!

Captain Marvel v01 - Rise of Alpha Flight (2016)  Comics

Posted by mikestoke at Dec. 4, 2016
Captain Marvel v01 - Rise of Alpha Flight (2016)

Captain Marvel v01 - Rise of Alpha Flight (2016)
English | CBR | 121 pages | 175.92 MB

Collects Captain Marvel (2016) #1-5.
Oh Captain, my Captain! Carol Danvers soars higher than ever with her greatest mission yet — leading Earth's first line of defense, the all-new Alpha Flight space program! And some alums of the old-school Flight are along for the ride: Puck, Aurora and Sasquatch! It's a bold new frontier for Captain Marvel, but can she handle being a diplomat first and a soldier second? She'll face negotiations with alien delegates, passive-aggressive power struggles with Flight Commander Abigail Brand, an insatiable itch to be out on the front lines and the mystery of a ghost ship bearing the Star of Hala — the very symbol she wears on her chest! Plus: Carol's powers are on the fritz, and all evidence says Alpha Flight has a traitor in its midst. You think your job is tough? Try Captain Marvel's!
Sea – Wind – Power: Research at the first German offshore wind farm Alpha Ventus

Michael Durstewitz and Bernhard Lange, "Sea – Wind – Power: Research at the first German offshore wind farm Alpha Ventus"
English | ISBN: 366253178X | 2016 | 252 pages | PDF | 14 MB

Alpha Flight 06 - Intégrale 1988  Comics

Posted by Lebedev30 at Nov. 19, 2016
Alpha Flight 06 - Intégrale 1988

Alpha Flight 06 - Intégrale 1988
Français | CBZ | 312 pages | 674.7 MB

Alpha Flight 05 - Intégrale 1987  Comics

Posted by Lebedev30 at Nov. 19, 2016
Alpha Flight 05 - Intégrale 1987

Alpha Flight 05 - Intégrale 1987
Français | CBZ | 297 pages | 598.9 MB

Alpha Flight 04 - Intégrale 1986  Comics

Posted by Lebedev30 at Nov. 19, 2016
Alpha Flight 04 - Intégrale 1986

Alpha Flight 04 - Intégrale 1986
Français | CBZ | 302 pages | 111.2 MB

Alpha Flight 03 - Intégrale 1985  Comics

Posted by Lebedev30 at Nov. 19, 2016
Alpha Flight 03 - Intégrale 1985

Alpha Flight 03 - Intégrale 1985
Français | CBZ | 444 pages | 176.3 MB

Alpha Flight 02 - Intégrale 1984  Comics

Posted by Lebedev30 at Nov. 19, 2016
Alpha Flight 02 - Intégrale 1984

Alpha Flight 02 - Intégrale 1984
Français | CBZ | 297 pages | 129.3 MB