Results 11 to 20 of about 19,918 (257)
60 years of the Antarctic Treaty – history and celebration in radio waves [PDF]
Polarforschung, 2022 The Antarctic Treaty, successfully negotiated and signed in 1959, entered into force after ratification by the 12 original signatory countries in 1961.
V. Strecke, V. Strecke
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Media and Communication, 2018 This article examines the privatization of telegraphy in the British Empire from the perspective of Gibraltar, an overseas territory in the Mediterranean. While the history of international telegraphy is typically written from a world-systems perspective,
Bryce Peake
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Sommerfeld Integrals and Their Relation to the Development of Planar Microwave Devices
IEEE Journal of Microwaves, 2021 This paper deals with the mathematical expressions called Sommerfeld integrals. Introduced by A. Sommerfeld in 1909, they are mathematically equivalent to inverse Hankel transforms.
JUAN R. MOSIG, KRZYSZTOF A. MICHALSKI
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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
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"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
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Mind Reading in Stage Magic: The “Second Sight” Illusion, Media, and Mediums
communication +1, 2015 This article analyzes the late-nineteenth-century stage illusion “The Second Sight,” which seemingly demonstrates the performers’ telepathic abilities.
Katharina Rein
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Telegraphy The Principles of Electric Wave Telegraphy Wireless Telegraphy Wireless Telegraphy [PDF]
Nature, 1906 OF the numerous achievements of which the electrical engineer can boast, telegraphy is the one of which he has the greatest reason to be proud. If we combine with telegraphy the sister subject of telephony there can be little doubt but that by the application of these two sciences he has effected a greater revolution in human affairs than by all his ...
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Science Museum Group Journal, 2019 In 1860, renowned natural philosopher (now referred to as a ‘scientist’ or, more specifically in the case of Clerk Maxwell, a ‘physicist’) James Clerk Maxwell wrote ‘Valentine from a Telegraph Clerk ♂ [male] to a Telegraph Clerk ♀ [female]’ (Harman, 2001)
Elizabeth Bruton
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, 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
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