Descriptions of an Electrical Telegraph PDF Download

Author: Sir Francis Ronalds
Publisher:
ISBN:
Category : Electric insulators and insulation
Languages : en
Pages : 114

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Author: Linda Simon
Publisher: Houghton Mifflin Harcourt
ISBN: 9780156032445
Category : History
Languages : en
Pages : 372

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From the invention of the telegraph to the discovery of X rays, Simon has created a revealing portrait of an anxious age when Americans welcomed electricity into their bodies even as they kept it from their homes.

Author: Lucy Margaret Rozier
Publisher: Schwartz & Wade
ISBN: 0385378432
Category : Juvenile Fiction
Languages : en
Pages : 41

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Book Description
The fastest man in the West meets his match in this deliciously clever original tall tale. With his extra-long legs, Jackrabbit McCabe can outrun anything on the American frontier: horses, trains, and even twisters. So of course, everyone in the town of Windy Flats always counts on his speed when a message has to get out fast. Then something new comes to town: the telegraph, which can send Morse code messages with the speed of electricity. At first, no one believes the newfangled contraption can deliver a message quicker than Jackrabbit. . . . But in a race between man and machine, who will be left in the dust? An author's note includes information about the invention of the telegraph, a Morse code key, and a riddle written in Morse code for kids to transcribe. "A strikingly accomplished debut.... A terrific tall tale about the costs and opportunities of technology." —Publishers Weekly, Starred "Good, quick-moving fun. Kids may marvel that communication existed before the telephone and Internet." —Kirkus Reviews

Author: James D. Reid
Publisher:
ISBN:
Category : Biography & Autobiography
Languages : en
Pages : 920

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Here is an often cited panoramic history of the telegraph which discusses the principal telegraph firms and the key persons within them. Throughout his work, Reid stresses the business and economic aspects of marketing this remarkable scientific invention. The importance of The Telegraph in America as a classic reference in the field is under-scored by the fact that the author was active in telegraphy throughout the period he discusses. He thus had a personal knowledge of persons and events under examination.

Author: Alexander Graham Bell
Publisher:
ISBN:
Category : Telegraph
Languages : en
Pages : 34

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Author: Beverley Frances Ronalds
Publisher:
ISBN: 9781783269174
Category : Biography & Autobiography
Languages : en
Pages : 604

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Introduction -- Founded on cheese -- Scenes in the story -- Frank and his family -- A life of science -- Electrical science and engineering 1810-19 -- Who invented the electric telegraph? -- The grand tour -- A sulphur business opportunity? -- Perspective tracing instruments -- Dr Alexander Blair and the Carnac megaliths -- Science exhibitions: a glimpse into Ronalds' mechanical inventions 1824-41 -- Kew Observatory 1842-55 and beyond -- Atmospheric electricity and meteorology: instruments and observations -- Photographic recording instruments for meteorology and geomagnetism -- Last years and legacy.

Author: Carolyn Marvin
Publisher: Oxford University Press
ISBN: 0198021380
Category : Technology & Engineering
Languages : en
Pages : 294

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Book Description
In the history of electronic communication, the last quarter of the nineteenth century holds a special place, for it was during this period that the telephone, phonograph, electric light, wireless, and cinema were all invented. In When old Technologies Were New, Carolyn Marvin explores how two of these new inventions--the telephone and the electric light--were publicly envisioned at the end of the nineteenth century, as seen in specialized engineering journals and popular media. Marvin pays particular attention to the telephone, describing how it disrupted established social relations, unsettling customary ways of dividing the private person and family from the more public setting of the community. On the lighter side, she describes how people spoke louder when calling long distance, and how they worried about catching contagious diseases over the phone. A particularly powerful chapter deals with telephonic precursors of radio broadcasting--the "Telephone Herald" in New York and the "Telefon Hirmondo" of Hungary--and the conflict between the technological development of broadcasting and the attempt to impose a homogenous, ethnocentric variant of Anglo-Saxon culture on the public. While focusing on the way professionals in the electronics field tried to control the new media, Marvin also illuminates the broader social impact, presenting a wide-ranging, informative, and entertaining account of the early years of electronic media.

Author: David Bodanis
Publisher: Crown
ISBN: 0307335984
Category : Science
Languages : en
Pages : 322

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Book Description
The bestselling author of E=mc2 weaves tales of romance, divine inspiration, and fraud through an account of the invisible force that permeates our universe—electricity—and introduces us to the virtuoso scientists who plumbed its secrets. For centuries, electricity was seen as little more than a curious property of certain substances that sparked when rubbed. Then, in the 1790s, Alessandro Volta began the scientific investigation that ignited an explosion of knowledge and invention. The force that once seemed inconsequential was revealed to be responsible for everything from the structure of the atom to the functioning of our brains. In harnessing its power, we have created a world of wonders—complete with roller coasters and radar, computer networks and psychopharmaceuticals. In Electric Universe, the great discoverers come to life in all their brilliance and idiosyncrasy, including the visionary Michael Faraday, who struggled against the prejudices of the British class system, and Samuel Morse, a painter who, before inventing the telegraph, ran for mayor of New York City on a platform of persecuting Catholics. Here too is Alan Turing, whose dream of a marvelous thinking machine—what we know as the computer—was met with indifference, and who ended his life in despair after British authorities forced him to undergo experimental treatments to “cure” his homosexuality. From the frigid waters of the Atlantic to the streets of Hamburg during a World War II firestorm to the interior of the human body, Electric Universe is a mesmerizing journey of discovery.

Author: Herbert W. Meyer
Publisher: MIT Press (MA)
ISBN: 9780262130707
Category : Electricity
Languages : en
Pages : 325

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Book Description
Written so as to be understood by the non-technical reader who is curious about the origin of all the electrical and electromagnetic devices that surround him, this history also provides a convenient compendium of information for those familiar with the electrical and magnetic fields. The book moves along at a rapid pace, as it must if it is to cover the enormous proliferation of developments that have occurred during the last hundred years or so.The author has struck a workable balance between the human side of his story, introducing those biographical details that help advance it, and its technical side, explaining theories and "how things work" where this seems appropriate. He also achieves a balance in recounting the discovery of basic scientific principles and their technological applications--the myriad of devices and inventions that utilize energy and information in electromagnetic form.Indeed, one of the important themes of the book is the close and reciprocal relationship between science and technology, between theory and practice. Before approximately 1840, the purely scientific investigations of electrical and magnetic phenomena were largely "ad hoc" and observational, and essentially no technology based on them existed. Afterwards, the scientific explorations became more programmatic and mathematical, and technical applications and inventions began to be produced in great abundance. In return, this technology paid its debt to pure science by providing it with a series of measuring instruments and other research devices that allowed it to advance in parallel.Although this book reviews the early discoveries, from the magnetic lodestone and electrostatic amber of antiquity to Galvani's frog's legs and Franklin's kite-and-key of the 1700s, its major emphasis is on the post-1840 developments, as the following chapter titles will confirm: Early Discoveries--Electrical Machines and Experiments with Static Electricity--Voltaic Electricity, Electrochemistry, Electromagnetism, Galvanometers, Ampere, Biot and Savart, Ohm--Faraday and Henry--Direct Current Dynamos and Motors--Improvements in Batteries, Electrostatic Machines, and Other Older Devices--Electrical Instruments, Laws, and Definitions of Units--The Electric Telegraph--The Atlantic Cable--The Telephone--Electric Lighting--Alternating Currents--Electric Traction--Electromagnetic Waves, Radio, Facsimile, and Television--Microwaves, Radar, Radio Relay, Coaxial Cable, Computers--Plasmas, Masers, Lasers, Fuel Cells, Piezoelectric Crystals, Transistors--X-Rays, Radioactivity, Photoelectric Effect, Structure of the Atom, Spectra.

Author: Bill Kovarik
Publisher: Bloomsbury Publishing USA
ISBN: 1628924780
Category : Social Science
Languages : en
Pages : 481

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Book Description
Revolutions in Communication offers a new approach to media history, presenting an encyclopedic look at the way technological change has linked social and ideological communities. Using key figures in history to benchmark the chronology of technical innovation, Kovarik's exhaustive scholarship narrates the story of revolutions in printing, electronic communication and digital information, while drawing parallels between the past and present. Updated to reflect new research that has surfaced these past few years, Revolutions in Communication continues to provide students and teachers with the most readable history of communications, while including enough international perspective to get the most accurate sense of the field. The supplemental reading materials on the companion website include slideshows, podcasts and video demonstration plans in order to facilitate further reading.