75 Secret Codes for Kids PDF Download
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Author: Chronicle Books
Publisher: Chronicle Books
ISBN: 9780811851923
Category :
Languages : en
Pages : 116
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Book Description
Author: Chronicle Books
Publisher: Chronicle Books
ISBN: 9780811851923
Category :
Languages : en
Pages : 116
Get Book Here
Book Description
Author: Martin Gardner
Publisher: Courier Corporation
ISBN: 9780486247618
Category : Juvenile Nonfiction
Languages : en
Pages : 100
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Book Description
Explains various methods used in cryptography and presents examples to help readers in breaking secret codes
Author: Bud Johnson
Publisher: Courier Corporation
ISBN: 0486291464
Category : Juvenile Nonfiction
Languages : en
Pages : 86
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Book Description
Simply and clearly written book, filled with cartoons and easy-to-follow instructions, tells youngsters 8 and up how to break 6 different types of coded messages. Examples and solutions.
Author: Happy Bear Publications
Publisher:
ISBN:
Category :
Languages : en
Pages : 58
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Book Description
This book contains 25 secret codes for your child to crack! Suitable for ages 6 - 10, this book contains clues and answers as well as space to create their own codes. Flip the book back to front to find the clues! Your child will soon be a code cracking and code writing extraordinaire! The book follows Charlie as they get into different situations and you will have to crack the code to answer the questions. This book contains: Crpytograms Morse Code Pigpen Cipher Secret Pirates Code And many more codes to crack! Have fun cracking the codes!
Author: Terry Burrows
Publisher: Lerner Publications ™
ISBN: 1512473820
Category : Juvenile Nonfiction
Languages : en
Pages : 51
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Book Description
During WWII, Japan's navy relied on secret codes to communicate battle plans. By early 1942, US experts had cracked the code. The Japanese had planned a surprise attack on US Navy ships, but now the Americans knew the attack was coming. They turned the tables on the enemy and won a decisive victory. Math has always been key to warfare. Scientists use mathematical calculations to understand how missiles fly, or how to build faster airplanes. Soldiers in battle use math to figure out how to hit a particular target. From making sure an army has enough supplies to recording casualties and damage, discover how math and calculations lie at the heart of warfare!
Author: Emily Bone
Publisher: Usborne Books
ISBN: 9781805072119
Category : Juvenile Nonfiction
Languages : en
Pages : 0
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Book Description
Code-cracking skills can be put to the test in this entertaining book which teaches children how to write and decode secret messages. Includes Semaphore and Morse code, the Grid code used in the American Civil War, Egyptian hieroglyphics, number replacement and alphabet switching codes and more. Each page features a different type of code, with an explanation of how it works and a practice code to crack. All answers are available at the back of the book.
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.
Author: Malee morkan
Publisher:
ISBN:
Category :
Languages : en
Pages : 103
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Book Description
SECRET CODE PUZZLE BOOK Activity Books for Young And Adults . 600 WORD SECRET-CODE. Volume 2Size 8.5" x 11"(21.59 x 27.94 cm) ***All solutions are on the back of the book.*** The secret message is written in symbols. In the code key at the bottom of the page you can find what each symbols means. Write the letter above the symbol and you can read the secret message.
Author: Charles Petzold
Publisher: Microsoft Press
ISBN: 0137909292
Category : Computers
Languages : en
Pages : 563
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Book Description
The classic guide to how computers work, updated with new chapters and interactive graphics "For me, Code was a revelation. It was the first book about programming that spoke to me. It started with a story, and it built up, layer by layer, analogy by analogy, until I understood not just the Code, but the System. Code is a book that is as much about Systems Thinking and abstractions as it is about code and programming. Code teaches us how many unseen layers there are between the computer systems that we as users look at every day and the magical silicon rocks that we infused with lightning and taught to think." - Scott Hanselman, Partner Program Director, Microsoft, and host of Hanselminutes Computers are everywhere, most obviously in our laptops and smartphones, but also our cars, televisions, microwave ovens, alarm clocks, robot vacuum cleaners, and other smart appliances. Have you ever wondered what goes on inside these devices to make our lives easier but occasionally more infuriating? For more than 20 years, readers have delighted in Charles Petzold's illuminating story of the secret inner life of computers, and now he has revised it for this new age of computing. Cleverly illustrated and easy to understand, this is the book that cracks the mystery. You'll discover what flashlights, black cats, seesaws, and the ride of Paul Revere can teach you about computing, and how human ingenuity and our compulsion to communicate have shaped every electronic device we use. This new expanded edition explores more deeply the bit-by-bit and gate-by-gate construction of the heart of every smart device, the central processing unit that combines the simplest of basic operations to perform the most complex of feats. Petzold's companion website, CodeHiddenLanguage.com, uses animated graphics of key circuits in the book to make computers even easier to comprehend. In addition to substantially revised and updated content, new chapters include: Chapter 18: Let's Build a Clock! Chapter 21: The Arithmetic Logic Unit Chapter 22: Registers and Busses Chapter 23: CPU Control Signals Chapter 24: Jumps, Loops, and Calls Chapter 28: The World Brain From the simple ticking of clocks to the worldwide hum of the internet, Code reveals the essence of the digital revolution.
Author: Jim Wiese
Publisher:
ISBN: 9780439354684
Category : Espionage
Languages : en
Pages : 132
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Book Description
Describes the skills, equipment, and techniques that spies use. Includes activities and experiments.
