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The Vigenère cipher is named after Blaise de Vigenère (pictured), although Giovan Battista Bellaso had invented it before Vigenère described his autokey cipher. The Vigenère cipher ( French pronunciation: [viʒnɛːʁ]) is a method of encrypting alphabetic text where each letter of the plaintext is encoded with a different Caesar cipher ...
The pigpen cipher uses graphical symbols assigned according to a key similar to the above diagram. [1]The pigpen cipher (alternatively referred to as the masonic cipher, Freemason's cipher, Rosicrucian cipher, Napoleon cipher, and tic-tac-toe cipher) [2] [3] is a geometric simple substitution cipher, which exchanges letters for symbols which are fragments of a grid.
Moon type was developed by William Moon (1818—1894), a blind Englishman living in Brighton, East Sussex. After a bout of scarlet fever, Moon lost his sight at age 21 and became a teacher of blind children. He discovered that his pupils had great difficulty learning to read the existing styles of embossed reading codes, and devised his own ...
A book cipher is a cipher in which each word or letter in the plaintext of a message is replaced by some code that locates it in another text, the key . A simple version of such a cipher would use a specific book as the key, and would replace each word of the plaintext by a number that gives the position where that word occurs in that book.
Secret Coders is a series of 6 educational graphic novels. Each of the Secret Coders graphic novels has 3 chapters. The chapter “titles” are drawings of four-eyed binary birds, displaying the chapter number in binary with open and closed eyes. At the end of each chapter, there is a coding or binary challenge. At the end of each book, there is a coding challenge. The answer to the coding ...
A to Z Mysteries. A to Z Mysteries is a popular series of mysteries for children, written by Ron Roy, illustrated by John Steven Gurney, and published by Random House. The series is generally considered among the best "easy readers" for young children. [1] [2] There are twenty-six books in the original series; one for each letter of the alphabet.
The Deseret alphabet was a project of the Mormon pioneers, a group of early followers of the Church of Jesus Christ of Latter-day Saints (LDS Church) who, motivated by revelations of a unique premillennial eschatology, had set about building a unique theocracy in the Utah desert, which was then still claimed by Mexico, after the death of the church's founder, the prophet Joseph Smith.
The Discovery of the Child is an essay by Italian pedagogist Maria Montessori (1870-1952), published in Italy in 1950, about the origin and features of the Montessori method, a teaching method invented by her and known worldwide. The book is nothing more than a rewrite of one of her previous books, which was published for the first time in 1909 ...