Secret Code Breaker

Secret Code Breaker PDF Author: Robert Reynard
Publisher: Smith & Daniel
ISBN: 1889668001
Category : Cryptography
Languages : en
Pages : 98

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Secret Code Book: Substitution Ciphers

Secret Code Book: Substitution Ciphers PDF Author: John Redden
Publisher: Lulu.com
ISBN: 1387346083
Category : Education
Languages : en
Pages : 58

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Book Description
The Secret Code Book is a short introduction to substitution ciphers. The chapters ease young readers into the concept of rotation ciphers and work their way up to the Vigenère cipher. Along the way, readers will also learn about geometric approaches to secret codes such as the Pigpen cipher. As a bonus, there is a brief description of frequency analysis and how it is used to crack secret codes. frper gpbqr obbx In addition, this book actively challenges readers with practice missions where answers are listed in the back. Also, there is a cut-out rotation template that is provided to make your very own cipher disk! After reading this book, you will have all the basic tools needed to create secret messages.

Secret Code Menace

Secret Code Menace PDF Author: Pamela Cosman
Publisher:
ISBN: 9781781279762
Category :
Languages : en
Pages : 120

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Book Description
A thoughtful and provocative fiction story about the science of secret codes and error correction. Sara, Derek and Jared have devised their own simple code to communicate with each other in class at school. When a written, coded message is amended en route to Sara and she gets into trouble, they start to explore how their simple code could use error correction to protect themselves against tampering by somebody.This is all a private hobby, until one day, on a school trip to a bank the class is caught up in an attempted bank robbery. Suddenly Sara, Derek and Jared's playing with codes - and with methods of error correction - has an urgent reality. The Secret Code Menace is part of the Cold Fusion series, published by Ransom Publishing, a specialist children's publisher. The series is designed for more able readers, gifted and talented children, and those who are curious, enjoy a challenge and like thinking outside the box. The Secret Code Menace is ideal for more able readers aged 9 - 12 with a reading age of 12 + .

The Secret Code

The Secret Code PDF Author: Priya Hemenway
Publisher:
ISBN: 9783836507110
Category : Art and science
Languages : en
Pages : 0

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Book Description
Verlagsinfo: The Divine Proportion reveals a number of simple patterns: It is seen in the seed patterns of fruits, the family tree of bees, the pyramids of Egypt, Gothic cathedrals, Renaissance paintings, the human body, shells ... the list is endless. Mathematicians use the Greek symbol to represent the Divine Proportion and equate it to a number that is defined by the ratio (1 + 5) / 2 or 1.6180339.... Numbers do little, however, in describing this unique ratio that is found everywhere in nature and for 2500 years has been an aesthetic guide in art and architecture. Beginning with calculations found on clay tablets in ancient Babylon, the story of Divine Proportion can be traced alongside the history of numbers to the fractals of the digital age. As its many forms unfold we uncover the Golden Rectangle in the Parthenon, Golden Spirals in the human inner ear, a Golden Angle in the petal patterns of a rose, and the Fibonacci numbers in lilies, daisies, pineapples, and in our own DNA. With its natural balance and elegant beauty, the Divine Proportion is a perpetual reminder that our hope for regeneration and continuity lies in realizing the meaningful and harmonious relationship of all the parts to the whole. This book deals with the Divine Proportion, a secret code that rules art, nature, and science. It is known by many names: Golden Mean, Sacred Cut and Phi are only a few; and it is not by chance that the Divine Proportion was given its name. It has been called divine because over thousands of years it has been deemed to be so.

The Secret Code Inside You

The Secret Code Inside You PDF Author: Rajani LaRocca
Publisher: little bee books
ISBN: 9781499810752
Category : Juvenile Nonfiction
Languages : en
Pages : 40

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Book Description
Learn about the secret code that is DNA in this vibrant and informative picture book! There's a secret code inside you, a code called DNA. A code that tells your body's cells what they should do each day. It looks like twisted ladders, or tiny, twirling noodles. It makes us into people, instead of into poodles. Why can't humans breathe underwater? Why are some people tall and others short? Why do we resemble our parents and grandparents? This book explores all this and more in flowing, rhyming text, explaining cells, DNA, and genetics in a way that is simple and easy for children to understand. Colorful and brilliantly illustrated, The Secret Code Inside You illustrates that while DNA may be the blueprint for how a person looks, what you choose to do with your body is entirely up to you!

Secret Code Breaker

Secret Code Breaker PDF Author: Robert Reynard
Publisher: Smith & Daniel
ISBN: 1889668001
Category : Cryptography
Languages : en
Pages : 98

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Book Description


Department of Defense appropriations for 1988

Department of Defense appropriations for 1988 PDF Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Department of Defense
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1038

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Book Description


Distributed Systems

Distributed Systems PDF Author: Sukumar Ghosh
Publisher: CRC Press
ISBN: 1466552972
Category : Computers
Languages : en
Pages : 560

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Book Description
Distributed Systems: An Algorithmic Approach, Second Edition provides a balanced and straightforward treatment of the underlying theory and practical applications of distributed computing. As in the previous version, the language is kept as unobscured as possible—clarity is given priority over mathematical formalism. This easily digestible text: Features significant updates that mirror the phenomenal growth of distributed systems Explores new topics related to peer-to-peer and social networks Includes fresh exercises, examples, and case studies Supplying a solid understanding of the key principles of distributed computing and their relationship to real-world applications, Distributed Systems: An Algorithmic Approach, Second Edition makes both an ideal textbook and a handy professional reference.

Games Prisoners Play

Games Prisoners Play PDF Author: Marek M. Kaminski
Publisher: Princeton University Press
ISBN: 0691149321
Category : Mathematics
Languages : en
Pages : 231

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Book Description
On March 11, 1985, a van was pulled over in Warsaw for a routine traffic check that turned out to be anything but routine. Inside was Marek Kaminski, a Warsaw University student who also ran an underground press for Solidarity. The police discovered illegal books in the vehicle, and in a matter of hours five secret police escorted Kaminski to jail. A sociology and mathematics major one day, Kaminski was the next a political prisoner trying to adjust to a bizarre and dangerous new world. This remarkable book represents his attempts to understand that world. As a coping strategy until he won his freedom half a year later by faking serious illness, Kaminski took clandestine notes on prison subculture. Much later, he discovered the key to unlocking that culture--game theory. Prison first appeared an irrational world of unpredictable violence and arbitrary codes of conduct. But as Kaminski shows in riveting detail, prisoners, to survive and prosper, have to master strategic decision-making. A clever move can shorten a sentence; a bad decision can lead to rape, beating, or social isolation. Much of the confusion in interpreting prison behavior, he argues, arises from a failure to understand that inmates are driven not by pathological emotion but by predictable and rational calculations. Kaminski presents unsparing accounts of initiation rituals, secret codes, caste structures, prison sex, self-injuries, and of the humor that makes this brutal world more bearable. This is a work of unusual power, originality, and eloquence, with implications for understanding human behavior far beyond the walls of one Polish prison.

A Letter to Intellectuals

A Letter to Intellectuals PDF Author: Ahmad Nosrati
Publisher: Trafford Publishing
ISBN: 1412221722
Category : Political Science
Languages : en
Pages : 210

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Book Description
After an intensive review of political history involving the relations of Iran with the West and with Russia during the period between the French Revolution and the present, it became apparent to me that at the expense of an always strategically important Iranian nation, these global entities were always shaping their policies so as to benefit themselves at the expense of the welfare of the Iranian people. I felt that there was always something shamefully amiss in the dealings of the Western powers and of Russia with our country (that was derived from a once majestic and imperial Persian empire), and that the outcome of such international diplomacy was invariable injurious and detrimental to the integrity of our rich Motherland. While recording my analysis of certain imbalanced circumstances, I sought for a solution to these inequities. I arrived at an answer that I have chosen to term, "the Iranian Great Revolution", which depends chiefly upon the careful and thoughtful construction of a new constitution by devoted intellectuals - Iranians and multi-nationals - from all over the world. Such individuals would apply their specialized expertise to the creation of a comprehensive document guaranteeing absolute justice and fairness to all subscribers, and it would not allow for any social or religious abuse to take place. Equality in all relationships - domestic and global - is to be the theme of this writ, and its institution will be the elective choice of the Iranian people. A challenge to all Intellectuals to organize and to achieve this constitutional process is my design.

Boys' Life

Boys' Life PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 76

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Book Description
Boys' Life is the official youth magazine for the Boy Scouts of America. Published since 1911, it contains a proven mix of news, nature, sports, history, fiction, science, comics, and Scouting.