Results 21 to 30 of about 19,918 (257)

Vorarbeiten im 19. Jahrhundert für die Agrarmeteorologie

open access: yesMeteorologische 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

DAVID BEVAN, FRGS, FBSC: Drums of the Birkenhead

open access: yesScientia 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

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

open access: yesMedia + 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

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

open access: yes, 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

open access: yescommunication +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

A tale of two telegraphs: Cooke and Wheatstone’s differing visions of electric telegraphy

open access: yesScience Museum Group Journal, 2017
This paper explores the early development of practical electric telegraphy in Britain during the nineteenth century. It exposes the two fundamentally different approaches to the design of telegraphic instruments specified in a joint patent between ...
Jean-François Fava-Verde
doaj   +1 more source

Thermoelasticity and generalized thermoelasticity viewed as wave hierarchies [PDF]

open access: yes, 2008
It is seen how to write the standard\^E form of the four partial differential equations in four unknowns of anisotropic thermoelasticity as a single equation in one variable, in terms of isothermal and isentropic wave operators.
Scott, N.H
core   +2 more sources

Poetry in the Age of New Sound Technology: Mallarmé to Tennyson

open access: yesCahiers Victoriens et Edouardiens, 2009
The meaning that sounds carry has always mattered to poetry but in a culture developing new communication technology using sound, the Victorians heard poetry's capacities to signal to the ear anew. This essay considers a number of poets writing after the
Francis O’Gorman
doaj   +1 more source

Wave Analogs of Media Based on Phase Locked Loops

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2020
Introduction. At present, phase locked loops (PLLs) are widely used: from optimal signal detection and frequency synthesis to automatic control of phase distribution in phased scanned arrays.
L. A. Tsyrulnikova   +2 more
doaj   +1 more source

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