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English Mechanic And World Of Science 1882 Vol 34

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ISBN : 0365134988
Genre : Technology & Engineering
File Size : 41.48 MB
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Excerpt from English Mechanic and World of Science, 1882, Vol. 34: With Which Are Incorporated "the Mechanic, "Scientific Opinion," and "the British and Foreign Mechanic" The single-needle telegraph is not used over here. Bregnet's A BC telegraph is the sim plest of these instruments. The manipulator consists of a horizontal bran dial, on which the letters of the alphabet are written to each letter correspondsanotch onthecircumferenceof the dial. A handle is movable around this dial, and is turned until a stud which pro'eots under the handle drops into the notch of t e letter which we wish to send. This handle makes and breaks the current by means of a wheel with curved teeth. The receiving instrument has an ABC dial, whose needle is made to turn round by clockwork, the escapement being releued by an electro-magnet each time the current passes. In Hughes's printing the sending instrument a key e a piano, on whose keys are written the letters of the alphabet. The essential part of the receiver is a type-wheel against which the slip of paper is pressed (each time a) key1 g the sendin instxl'oument is pressed an e co n g tter prin u nthepaper. This egra bbss very oom pezated mechanism, and al&ough at a first glance it may look simple to work, yet it is not or the type-wheel turning, say, onceina second, time must be carefully ke t to this. It is much used in France. Baudot s instrument takes up much less room; but is also very complicated. It will tint six messages at a time. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Category: Technology & Engineering

Physics And Psychics

Author : Richard Noakes
ISBN : 9781107188549
Genre : History
File Size : 21.79 MB
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Noakes' revelatory analysis of Victorian scientists' fascination with psychic phenomena connects science, the occult and religion in intriguing new ways.
Category: History

Science Time And Space In The Late Nineteenth Century Periodical Press

Author : James Mussell
ISBN : 0754657477
Genre : Literary Criticism
File Size : 86.26 MB
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James Mussell engages with nineteenth-century scientific writing and recent theoretical discussion to propose a new methodology that situates the periodical press in space and time. Well-known writers like H. G. Wells and Arthur Conan Doyle are discovered in new contexts, while other authors, publishers, editors, and scientists are discussed in ways that inform current debates about the status of digital publication and the preservation of archival material in electronic forms.
Category: Literary Criticism

Weighing The World

Author : Russell McCormmach
ISBN : 9789400720220
Genre : Science
File Size : 89.21 MB
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The book about John Michell (1724-93) has two parts. The first and longest part is biographical, an account of Michell’s home setting (Nottinghamshire in England), the clerical world in which he grew up (Church of England), the university (Cambridge) where he studied and taught, and the scientific activities he made the center of his life. The second part is a complete edition of his known letters. Half of his letters have not been previously published; the other half are brought together in one place for the first time. The letters touch on all aspects of his career, and because they are in his words, they help bring the subject to life. His publications were not many, a slim book on magnets and magnetism, one paper on geology, two papers on astronomy, and a few brief papers on other topics, but they were enough to leave a mark on several sciences. He has been called a geologist, an astronomer, and a physicist, which he was, though we best remember him as a natural philosopher, as one who investigated physical nature broadly. His scientific contribution is not easy to summarize. Arguably he had the broadest competence of any British natural philosopher of the eighteenth century: equally skilled in experiment and observation, mathematical theory, and instruments, his field of inquiry was the universe. From the structure of the heavens through the structure of the Earth to the forces of the elementary particles of matter, he carried out original and far-reaching researches on the workings of nature.
Category: Science

Biographical Encyclopedia Of Astronomers

Author : Virginia Trimble
ISBN : 9780387304007
Genre : Science
File Size : 56.83 MB
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The Biographical Encyclopedia of Astronomers is a unique and valuable resource for historians and astronomers alike. The two volumes include approximately 1550 biographical sketches on astronomers from antiquity to modern times. It is the collective work of about 400 authors edited by an editorial board of 9 historians and astronomers, and provides additional details on the nature of an entry and some summary statistics on the content of entries. This new reference provides biographical information on astronomers and cosmologists by utilizing contemporary historical scholarship. Individual entries vary from 100 to 1500 words, including the likes of the superluminaries such as Newton and Einstein, as well as lesser-known astronomers like Galileo’s acolyte, Mario Guiducci. A comprehensive contributor index helps researchers to identify the authors of important scientific topics and treatises.
Category: Science

The Birth Of British Television

Author : Mark Aldridge
ISBN : 9780230346727
Genre : History
File Size : 22.68 MB
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When the BBC launched the world's first regular, high-definition television service on 2 November, 1936 it was the culmination of decades of technological innovations. More than this, however, the service meant that the principle of television had finally found its place. The Birth of British Television – A History traces the early history and development of television, from the experiments of amateurs to the institutionalised developments that led to the world's first regular, high definition television service. Author Mark Aldridge provides a clear, in-depth and accessible introduction for those either exploring the period for the first time or seeking new insights into the beginnings of the industry. In tracing the origins and development of television, Aldridge focuses on a number of important factors including the attitude of the press towards early television and examines the way that expectations of television changed over time prior to its official launch. Utilising new research, this illuminating study examines how the aims for a new television service developed, and the extent to which content and technology were linked. The Birth of British Television approaches this formative period from several perspectives, from private individuals to the BBC and government, while also examining the broader opinions at the time towards the new medium through press reports and feedback from the general public. Also included is an assessment of early programming, which helps to offer a new and profound evaluation of the development of early television. Mark Aldridge is a Lecturer in Film and TV Studies at Southampton Solent University, UK. He specialises in British television and both film and television history. His previous publications include T is for Television (2008), an analysis of the work of Russell T. Davies, co-written with Andy Murray.
Category: History