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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. The example key shows one way the letters can be assigned to the grid.
The Secrets of Triangles. Appearance. hide. First edition. The Secrets of Triangles: A Mathematical Journey is a popular mathematics book on the geometry of triangles. It was written by Alfred S. Posamentier and Ingmar Lehmann [ de], and published in 2012 by Prometheus Books .
A telegraph code is one of the character encodings used to transmit information by telegraphy. Morse code is the best-known such code. Telegraphy usually refers to the electrical telegraph, but telegraph systems using the optical telegraph were in use before that. A code consists of a number of code points, each corresponding to a letter of the ...
One logo features blue spiral-shaped triangle surrounded by a larger triangle, represents an pedophile who is attracted to boys. A variation of this logo features rounded corners to resemble a ...
Most commonly reported shapes in UFO sightings gathered by the National UFO Reporting Center Online Database . This is a list of notable reported sightings of unidentified flying objects (UFOs) or unidentified anomalous phenomena (UAP), and related claims of close encounters or abductions. UAP are generally considered to include any perceived ...
1990. Dimensions. 11–12 feet × 20 feet. Location. George Bush Center for Intelligence, Langley, Virginia. Coordinates. 38°57′08″N 77°08′45″W. / 38.95227°N 77.14573°W / 38.95227; -77.14573. Kryptos is a distributed sculpture by the American artist Jim Sanborn located on the grounds of the Central Intelligence Agency (CIA ...
Caesar cipher. The action of a Caesar cipher is to replace each plaintext letter with a different one a fixed number of places down the alphabet. The cipher illustrated here uses a left shift of 3, so that (for example) each occurrence of E in the plaintext becomes B in the ciphertext. In cryptography, a Caesar cipher, also known as Caesar's ...
Taylor Swift. "Wildest Dreams" is a song by the American singer-songwriter Taylor Swift (pictured); it is the fifth single from her fifth studio album, 1989 (2014). Described by critics as synth-pop, dream pop, and electropop, the song was written by Swift and its producers Max Martin and Shellback. The lyrics feature Swift pleading with a ...