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For each letter pressed, one lamp lit indicating a different letter according to a pseudo-random substitution determined by the electrical pathways inside the machine. The letter indicated by the lamp would be recorded, typically by a second operator, as the cyphertext letter. The action of pressing a key also moved one or more rotors so that ...
Quilling is an art form that involves the use of strips of paper that are rolled, shaped, and glued together to create decorative designs. The paper shape is manipulated to create designs on their own or to decorate other objects, such as greetings cards, pictures, boxes, or to make jewelry.
Playfair cipher. The Playfair cipher uses a 5×5 grid of letters, and encrypts a message by breaking the text into pairs of letters and swapping them according to their positions in a rectangle within that grid: "HI" becomes "BM". The Playfair cipher or Playfair square or Wheatstone–Playfair cipher is a manual symmetric encryption technique ...
Letter frequency is the number of times letters of the alphabet appear on average in written language. Letter frequency analysis dates back to the Arab mathematician Al-Kindi (c. 801 –873 AD), who formally developed the method to break ciphers. Letter frequency analysis gained importance in Europe with the development of movable type in 1450 ...
Many tests exist for synesthesia. Each common type has a specific test. When testing for grapheme–color synesthesia, a visual test is given. The person is shown a picture that includes black letters and numbers. A synesthete will associate the letters and numbers with a specific color. An auditory test is another way to test for synesthesia.
ABBA Christmas — This infomercial spoof promotes a never-released album of holiday songs from "The Fleetwood Mac of cold weather" (Bowen Yang, episode host Kate McKinnon, and McKinnon's fellow SNL alums Maya Rudolph and Kristen Wiig), all set to the tunes of their well-known classics (e.g. "Gifts for Me, Gifts for You").
History of the alphabet. The history of the alphabet goes back to the consonantal writing system used to write Semitic languages in the Levant during the 2nd millennium BCE. Nearly all alphabetic scripts used throughout the world today ultimately go back to this Semitic script. [1] Its first origins can be traced back to a Proto-Sinaitic script ...
Quillwork is a form of textile embellishment traditionally practiced by Indigenous peoples of North America that employs the quills of porcupines as an aesthetic element. Quills from bird feathers were also occasionally used in quillwork.
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