Results 11 to 20 of about 20,338 (240)

Time and Telegraphy: Nineteenth-Century Contexts for Stained Glass

19, 2020
Although nineteenth-century writers frequently conceived of rail travel as a dream space of collaged, fleeting, and disjunctive experiences, the transition from everyday life to travel dream state has been rarely explored.
Karen Burns
doaj   +2 more sources

"The Path to Freedom"? Transocean and German Wireless Telegraphy, 1914-1922 [PDF]

, 2012
This article examines the early years of Transocean, a news agency owned and run by the German government, and its use of wireless telegraphy from 1914 to 1922. This investigation of the infancy of wireless technology demonstrates that technology plays a
Evans, Heidi Jacqueline
core   +3 more sources

A Question of Coherence [PDF]

, 2016
open1noElectromagnetic waves were first postulated by James Clerk Maxwell (1831-1879) in 1865. To demonstrate their existence 22 years later, Heinrich Hertz (1857-1894) had to design new instrumentation that he used to carry out an experiment than had ...
Guarnieri, Massimo
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Vladimir Aleksandrovich Kotelnikov: Pioneer of the sampling theorem, cryptography, optimal detection, planetary mapping [PDF]

, 2009
In 1933 the young Russian communications engineer Vladimir Aleksandrovich Kotelnikov published a paper in which he formulated for the first time in an engineering context the sampling theorem for lowpass and bandpass signals.
Bissell, Christopher
core   +1 more source

DAVID BEVAN, FRGS, FBSC: Drums of the Birkenhead

Scientia Militaria, 2012
"She was entirely alone in her agony, just as much isolated by the suddenness of her ruin as if wireless telegraphy had not existed." Hierdie gedagtes, deur die redakteur van "The Times" uitgespreek in 'n hoofartikel wat hy na aanleiding van die "Titanic"
Jan Ploeger
doaj   +1 more source

French Optical Telegraphy, 1793-1855: Hardware, Software, Administration [PDF]

, 1994
The relatively stable contribution of technological change to aggregate growth masks technological trajectories which are, at the sectoral level, often highly discontinuous.
Field, Alexander J.
core   +2 more sources

Spiritualist Writing Machines: Telegraphy, Typtology, Typewriting

communication +1, 2015
This paper examines how religious concepts both reflected and informed the development of new technologies for encoding, transmitting, and printing written information.
Anthony Enns
doaj   +1 more source

Etherealization in a Racial Regime of Ownership: Marconi in O‘ahu, circa 1900

Media + Environment, 2021
This article traces the emergence of wireless telegraphy in the Hawaiian Islands in the late nineteenth and early twentieth centuries. Centrally, I argue that for an ascendant haole (white settler) planter class, wirelessness proffered potent resources ...
Tyler Morgenstern
doaj   +1 more source

Vorarbeiten im 19. Jahrhundert für die Agrarmeteorologie

Meteorologische Zeitschrift, 1996
In der ersten Hälfte des 19. Jahrhunderts überwogen Bemühungen um meteorologische Beobachtungen und deren Auswertung mit landwirtschaftlicher Zielsetzung.
Tello von Wilamowitz-Moellendorff
doaj   +1 more source

Wireless Telegraphy [PDF]

, 1899
Maxwell\u27s theoretical deduction, as to the propagation of electric and magnetic energy by means of vibrations of the ether, was established experimentally by Hertz in 1887. This was a oulminative master stroke ending the two hundred years old problem,
Montchyk,, Price,, Sickman,
core   +3 more sources