periodic cipher
21Signals intelligence — SIGINT redirects here. For the UNIX signal, see SIGINT (POSIX). RAF Menwith Hill, a large site in the United Kingdom, part of ECHELON and the UK USA Security Agreement. Signals intelligence (often contracted to SIGINT) is intelligence gathering… …
22Pseudorandom number generator — A pseudorandom number generator (PRNG), also known as a deterministic random bit generator (DRBG),[1] is an algorithm for generating a sequence of numbers that approximates the properties of random numbers. The sequence is not truly random in… …
23List of inventors — This is a list of inventors. See also: List of scientists, Timeline of invention, List of inventions named after people, List of inventors killed by their own inventions, and . Alphabetical list compactTOC NOTOC A * Vitaly Mikhaylovich Abalakov,… …
24Amelia Earhart — Earhart redirects here. For the asteroid, see 3895 Earhart. Amelia Earhart Amelia Earhart …
25History of Coventry — Two of Coventry s three spires; Holy Trinity Church on the left, and the spire of the old ruined cathedral (St. Michael s) on the right This article is about the history of Coventry, a city in the West Midlands, England. From its humble… …
26English inventions and discoveries — are objects, processes or techniques which owe their existence either partially or entirely to a person born in England; in some cases, their Englishness is determined by the fact that they were born in England, of non English people working in… …
27List of concepts in Artemis Fowl — This is a list of fictional concepts in Artemis Fowl, a novel series by Eoin Colfer. Contents 1 Fairy concepts 1.1 Bio bomb 1.2 Book of the People 1.3 Buzz baton …
28Digital rights management — (DRM) is a term for access control technologies that are used by hardware manufacturers, publishers, copyright holders and individuals to limit the use of digital content and devices. The term is used to describe any technology that inhibits uses …
29Matrix (mathematics) — Specific elements of a matrix are often denoted by a variable with two subscripts. For instance, a2,1 represents the element at the second row and first column of a matrix A. In mathematics, a matrix (plural matrices, or less commonly matrixes)… …
30Diane Beckman — Chuck character Bonita Friedericy as General Diane Beckman First appearance Chuck Versus the Helicopter …
