Invisible Messages
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Invisible Messages
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Author : Jacques Cousteau
language : en
Publisher:
Release Date : 1973
Invisible Messages written by Jacques Cousteau and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Marine biology categories.
Secret Messages
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Author : David J. Alvarez
language : en
Publisher:
Release Date : 2000
Secret Messages written by David J. Alvarez and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with History categories.
To defeat your enemies you must know them well. In wartime, however, enemy codemakers make that task much more difficult. If you cannot break their codes and read their messages, you may discover too late the enemy's intentions. That's why codebreakers were considered such a crucial weapon during World War II. In Secret Messages, David Alvarez provides the first comprehensive analysis of the impact of decoded radio messages (signals intelligence) upon American foreign policy and strategy from 1930 to 1945. He presents the most complete account to date of the U.S. Army's top-secret Signal Intelligence Service (SIS): its creation, its struggles, its rapid wartime growth, and its contributions to the war effort. Alvarez reveals the inner workings of the SIS (precursor of today's NSA) and the codebreaking process and explains how SIS intercepted, deciphered, and analyzed encoded messages. From its headquarters at Arlington Hall outside Washington, D.C., SIS grew from a staff of four novice codebreakers to more than 10,000 people stationed around the globe, secretly monitoring the communications of not only the Axis powers but dozens of other governments as well and producing a flood of intelligence. Some of the SIS programs were so clandestine that even the White House—unaware of the agency's existence until 1937—was kept uninformed of them, such as the 1943 creation of a super-secret program to break Soviet codes and ciphers. In addition, Alvarez brings to light such previously classified operations as the interception of Vatican communications and a comprehensive program to decrypt the communications of our wartime allies. He also dispels many of the myths about the SIS's influence on American foreign policy, showing that the impact of special intelligence in the diplomatic sphere was limited by the indifference of the White House, constraints within the program itself, and rivalries with other agencies (like the FBI). Drawing upon military and intelligence archives, interviews with retired and active cryptanalysts, and over a million pages of cryptologic documents declassified in 1996, Alvarez illuminates this dark corner of intelligence history and expands our understanding of its role in and contributions to the American effort in World War II.
Writing Secret Codes And Sending Hidden Messages
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Author : Gyles Daubeney Brandreth
language : en
Publisher: Sterling Publishing (NY)
Release Date : 1984
Writing Secret Codes And Sending Hidden Messages written by Gyles Daubeney Brandreth and has been published by Sterling Publishing (NY) this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Language Arts & Disciplines categories.
Explains how to use secret codes, including Morse, Caesar's, Sandwich, Rosicrucian, and others, as well as how to send hidden messages using invisible ink, how to take fingerprints, and other tricks and techniques.
Invisible Messages
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Author : Jacques Yves Cousteau
language : en
Publisher:
Release Date : 1973
Invisible Messages written by Jacques Yves Cousteau and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Animal communication categories.
Secret Messages
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Author : William S. Butler
language : en
Publisher:
Release Date : 2001-01-02
Secret Messages written by William S. Butler and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-01-02 with History categories.
Tells the stories of ninety-five situations in which code and hidden messages have been used throughout history.
How To Write Codes And Send Secret Messages
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Author : John Peterson
language : en
Publisher: Scholastic
Release Date : 1970
How To Write Codes And Send Secret Messages written by John Peterson and has been published by Scholastic this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Juvenile Nonfiction categories.
Explains how to write and decipher space codes, hidden word codes, and alphabet codes and gives formulas for invisible ink. Includes suggestions for delivering coded messages.
Invisible Agents
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Author : Nadine Akkerman
language : en
Publisher: Oxford University Press
Release Date : 2018-06-10
Invisible Agents written by Nadine Akkerman and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-10 with History categories.
It would be easy for the modern reader to conclude that women had no place in the world of early modern espionage, with a few seventeenth-century women spies identified and then relegated to the footnotes of history. If even the espionage carried out by Susan Hyde, sister of Edward Hyde, Earl of Clarendon, during the turbulent decades of civil strife in Britain can escape the historiographer's gaze, then how many more like her lurk in the archives? Nadine Akkerman's search for an answer to this question has led to the writing of Invisible Agents, the very first study to analyse the role of early modern women spies, demonstrating that the allegedly-male world of the spy was more than merely infiltrated by women. This compelling and ground-breaking contribution to the history of espionage details a series of case studies in which women — from playwright to postmistress, from lady-in-waiting to laundry woman — acted as spies, sourcing and passing on confidential information on account of political and religious convictions or to obtain money or power. The struggle of the She-Intelligencers to construct credibility in their own time is mirrored in their invisibility in modern historiography. Akkerman has immersed herself in archives, libraries, and private collections, transcribing hundreds of letters, breaking cipher codes and their keys, studying invisible inks, and interpreting riddles, acting as a modern-day Spymistress to unearth plots and conspiracies that have long remained hidden by history.
Invisible
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Author : Caroline King PhD
language : en
Publisher: AuthorHouse
Release Date : 2023-08-07
Invisible written by Caroline King PhD and has been published by AuthorHouse this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-08-07 with Self-Help categories.
Invisible: A Story of Diversity, Equity, and Inclusion in the United States offers a comprehensive look at the history of diversity in our country. It examines the ways in which our past has shaped our present and how we can use this knowledge to work towards a more equitable future. Through the exploration of race, gender, sexuality, ability, religion and culture, this book encourages readers to challenge the status quo and think about how their own identities contribute to the larger picture of diversity in America. From discussions about the damaging effects of systemic racism, to the ways our history has influenced current events, this book encourages readers to engage in meaningful dialogue and take action towards creating a more just world. With a combination of compelling stories, case studies, and the latest research from leaders in the field, Invisible offers an essential guide for making real change. “Differences should not separate us from each other, but rather bring a collective strength that can benefit all of humanity.” — Robert Alan
Invisible Fields
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Author : José Luis de Vicente
language : en
Publisher: ACTAR Publishers
Release Date : 2011
Invisible Fields written by José Luis de Vicente and has been published by ACTAR Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Art categories.
With the invention of telecommunications technologies in the late nineteenth century, the radio-electric spectrum became a tool for rethinking the world in which we live. The emission of radio waves did away with physical distances, crossing borders and cultures and acting as a powerful catalyst for trade. Moreover, the radio spectrum is the invisible infrastructure on which our information and communication technologies have been built. The history of its scientific discovery and how it was gradually colonized by the media, the military complex, and activists and hackers is one of the most fascinating stories of the twentieth century. The future uses of the radio-electric spectrum in the twenty-first century and its new potential are being decided now, with the end of analogue TV broadcasting worldwide marking the most important transformation of uses in the radio-electric space in decades. This catalog sets out to examine these issues and shed a little light on the most intriguing stories about the radio-electric spectrum.
Secret Codes And Hidden Messages
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Author : Jeffrey A. O'Hare
language : en
Publisher: Boyds Mills Press
Release Date : 1997
Secret Codes And Hidden Messages written by Jeffrey A. O'Hare and has been published by Boyds Mills Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Juvenile Nonfiction categories.
Dozens of codes and hidden messages are presented as riddles, poems and other fun-filled expressions.