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Classic Codes and Ciphers by Rachael L. Thomas Pdf
Dive into the secret history of . . . secrets! Cryptology is the art and science of secret communication, and its purpose is to protect precious information and keep people safe. Learn about its building blocks: ciphers, codes, and keys. People have wanted to hide messages and important information for millennia. Read how history's coolest codes and ciphers have progressed from belts and sticks to rotating disks and supercomputers. Use your cryptology skills to design your own secret cipher. And learn about the smart people who built and broke the strongest secret systems.
The History of Code Breaking by Nigel Cawthorne Pdf
This intriguing and revelatory history of cryptology ranges from the early days of code-making and code-breaking in ancient Egypt, Sparta, and Rome to the present day when it has slipped beyond the tight control of governments and now affects all our lives whenever we use our cell phones or connect to the internet. Subjects covered here include Mary Queen of Scots' cryptic messages when she was plotting against her cousin Elizabeth I; the codes used by George Washington for military and political purposes; and code-breaking during World Wars I and II, including the Enigma Machine. Those who invent codes and those who break them are fascinating characters. This is their story.
Code-Breaker and Mathematician Alan Turing by Heather E. Schwartz Pdf
Have you ever wished that you could do something heroic to help your country? When Alan Turing was a boy, he was fascinated by math and science. Later, Turing's math skills would help Great Britain win World War II. Turing's parents and teachers thought he'd be better off dropping math in favor of more gentlemanly studies, such as literature and Latin. But he stuck with it, and by the start of World War II in 1939, he was ready to take on the biggest challenge his country faced: Nazi Germany. Turing put his advanced knowledge of math to work decoding secret German messages. His ideas not only helped Great Britain turn the tide of the war--they provided the foundation upon which much of modern computing and artificial intelligence is based.
Author : L. L. Owens Publisher : Heroes of World War II (Altern Page : 36 pages File Size : 49,8 Mb Release : 2018-08 Category : Juvenile Nonfiction ISBN : 9781541521513
"From Pearl Harbor to Bletchley Park, readers will learn the true stories of the brave men and women who worked behind the scenes to crack codes and gain information during World War II"--
Secret and Urgent - The Story of Codes and Ciphers by Anon Pdf
Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce and increasingly expensive. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.
This book connects to the new AASL standards, ISTE Standards for Students, and provides simple directions for using a variety of books to create maker activities that deepen the reading experience. Books and maker activities help children to associate reading with hands-on learning. For educators looking for additional ways to engage youngsters in reading and maker activities, this book provides the perfect hands-on connection. Providing connections to the new AASL standards and the ISTE Standards for Students with simple directions for using a variety of books to create maker activities, this book can help elementary teachers and librarians to enhance and deepen the reading experience. Featured books represent a variety of genres for kindergarten through sixth-grade students and highlights very current titles as well as classics. The book is based on actual experiences with students and staff who have enjoyed and benefited from these activities in their elementary school library. The author's forty years of educational experience ensure the reliability and practicality of this resource that readers can trust and use every day.
Codes and Ciphers - A History of Cryptography by Alexander D'Agapeyeff Pdf
This vintage book contains Alexander D’Agapeyeff’s famous 1939 work, Codes and Ciphers - A History of Cryptography. Cryptography is the employment of codes and ciphers to protect secrets, and it has a long and interesting history. This fantastic volume offers a detailed history of cryptography from ancient times to modernity, written by the Russian-born English cryptographer, Alexander D'Agapeyeff. The contents include: - The beginnings of Cryptography - From the Middle Ages Onwards - Signals, Signs, and Secret Languages - Commercial Codes - Military Codes and Ciphers - Types of Codes and Ciphers - Methods of Deciphering Many antiquarian texts such as this, especially those dating back to the 1900s and before, are increasingly hard to come by and expensive, and it is with this in mind that we are republishing this book now in an affordable, modern, high quality edition. It comes complete with a specially commissioned new biography of the author.
"From using horses in battle to operating hospitals in a war zone, biology has been an important part of warfare. Readers will learn about the scientists and concepts that contributed to modern understanding of biology."--Provided by publisher.