Cipher Codes generally substitute different length strings of characters in the output, whilst ciphers generally substitute the same number of characters as are input. There are exceptions and some cipher systems may use slightly more, or fewer, characters when output versus the number that were input. Codes operated by substituting according to a large codebook which linked a random string of characters or numbers to a word or phrase. Most modern ciphers can be categorized in several ways By whether they work on blocks of symbols usually of a fixed size (block ciphers), or on a continuous stream of symbols (stream ciphers).By whether the same key is used for both encryption and decryption (symmetric key algorithms), or if a different key is used for each (asymmetric key algorithms). Etymology[edit] "Cipher" is alternatively spelled "cypher"; similarly "ciphertext" and "cyphertext", and so forth. "The concept of zero, called sifr in Arabic, came to medieval Europe from the Arabs. Types[edit]
Gamifica tu Aula con TIC. v 3.0-2019 Esta presentación se utilizó en el desarrollo de la sesión “Gamifica tu aula con TIC” en las III Jornadas “Arucas Educa” celebradas el pasado día 4 de abril 2019 en el Nuevo Teatro Viejo de Arucas-Las Palmas. El propósito de la charla es familiarizar al profesorado con esta línea de innovación metodológica que utiliza el juego como recurso para mejorar la calidad del aprendizaje del alumnado. Se propuso una pequeña experiencia gamificada por equipos y se repasaron las herramientas tecnológicas en línea más populares para el diseño de este tipo de actividades. Índice de contenidos Concepto de gamificaciónLa magia de los videojuegos.Aclaración de términos.Beneficios e inconvenientes.Juego: ¿A qué generación perteneces?
Pict-O-Caches | Trip's GeoAdventures If there was ever a cache that everyone should try once, pict-o-caches would likely be near the top of the list. They take aspects of several different types of caches and join them together to make a cache that everyone can participate in and enjoy. But how do they work? First, we need to establish what they are… Pict-o-caches are a class on their own. Let’s look a bit closer. Obviously, this image shows a brick wall, so you would want to scan for brick buildings. Examining the photo, you at least now that it is near a window. Now, you can be certain that this is the corner of a building, and along the roof. This is the overall idea of this type of pict-o-cache. But I said that this the above method is just one type of this style of puzzle cache. I have not actually gone after one of this method. Either method provides an interesting caching experience. First, decide which method you want to us. However, for the first option, there’s a bit more that goes into preparing this. Like this:
Los mejores recursos para gamificar tu aula Comparto con vosotros una lista de recursos útiles para gamificar el aula. No es una lista cerrada y podéis aportar otros recursos que creáis que deberían estar en ella. 1. 2. 3. 4. 5. 6. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. UK | England | Carvings riddle stumps villagers Puzzled residents across Yorkshire are turning detective after mysterious stone heads were left outside their properties in the dead of night. The sculptures feature the same carved symbol and come with a riddle attached. Despite CCTV film showing a man leaving three heads outside a post office, their origin remains unknown. So far, 12 have appeared in Goathland and Kilburn, North Yorkshire; four in Arthington, West Yorkshire and three in Braithwell in South Yorkshire. Each of the heads, which are up to a foot tall, looks different but all feature the same carving - which appears to spell out the word "paradox" - and a note bearing the riddle: "Twinkle twinkle like a star does love blaze less from afar?" The villages they have been found in are up to 50 miles from each other. Mike and Valerie Hoyes, who run a post office in Braithwell, found three heads outside their business on the morning of 23 August. Mrs Hoyes said: "It's very weird. Stonemasons quizzed
Mergecube y cómo crear enigmas de Realidad Aumentada en tu Escape Room Educativo Hoy quiero hablarte de una herramienta que descubrí hace poco para crear experiencias de realidad aumentada muy muy potente. Se llama Mergecube y en este artículo espero animarte a problarla en tu próximo Escape Room Educativo. Si te gusta más leer, adelante con el artículo. En el él encontrarás toda la información detallada. Si en cambio, te gustan más los vídeos, aquí tienes un videotutorial detallado sobre cómo utilizar Mergecube y sus aplicaciones de realidad aumentada en tu juego de escape. Espero que en cualquier caso el contenido te sea útil. ¿Qué es Mergecube? Mergecube es una herramienta para la visualización e interacción con modelos 3D mediante realidad aumentada (RA). Los desarrolladores de Mergecube lo definen como “hologramas en la palma de tu mano”. Esta herramienta holográfica se compone de dos elementos esenciales: el cubo Mergecube (hardware) y las aplicaciones (software). El cubo Mergecube El corazón de esta herramienta es el propio cubo Mergecube. Mergecube original vs.
Home - www.simplesite.com/the_runes “For me the magic moment came on page 2 where the green picture could mean any of three things. I identified the picture almost at once but could not see in which of the three directions it might go. And I knew that I had to find out!” “This should come with a warning label on it. ...It's highly additive. “I took it to Rome with me and sought inspiration in the Forum.... ................. aaaagh, there's no escaping the clutches of the Runes!” “It took three pages before I was fully sold on this. “What I have enjoyed is the step-by-step developments of the first few pages leading into the greater challenges as you realise that there is more to each puzzle than you were first led to think - and the buzz of discovery when you realise how it actually works.” ”This is one of the most complex puzzles I have ever encountered. “I am proud to say that I have had my first Eureka moment when everything just slotted into place. “I’m totally intrigued with this puzzle.
El Sistema Solar en Realidad Aumentada con Arloon Solar System Hace unos meses publiqué El cuerpo humano en Realidad Aumentada con Arloon Anatomy, una entrada que presentaba las posibilidades didácticas de esa completa app. Hoy os traigo otra app recién estrenada que es, en mi opinión, una nueva muestra de Arloon como referente nacional en el campo de las apps educativas. Arloon Solar System nos permite adentrarnos en el fascinante mundo de la astronomía y descubrir los cuerpos celestes que forman parte de nuestro sistema planetario como si los tuviéramos al alcance de la mano. Esto último no sorprenderá a aquellos que somos conocedores de las apps de Arloon, ya que todas sus apps incluyen Realidad Aumentada, y es gracias a esta tecnología que podemos experimentar e interaccionar con unas logradas representaciones celestes tridimensionales que aparecerán sobre el marcador. Desde el menú principal podremos seleccionar los siguientes contenidos:
Keyed Caesar One variation to the standard Caesar cipher is when the alphabet is "keyed" by using a word. In the traditional variety, one could write the alphabet on two strips and just match up the strips after sliding the bottom strip to the left or right. To encode, you would find a letter in the top row and substitute it for the letter in the bottom row. For a keyed version, one would not use a standard alphabet, but would first write a word (omitting duplicated letters) and then write the remaining letters of the alphabet. This encoder will let you specify the key word that is used at the beginning of the alphabet and will also let you shift the keyed alphabet around, just like a normal Caesar cipher. This is your encoded or decoded text:
Gamification: Where to Begin? #gamification #3dgamelab #gbl #arg Playing Futures: Applied Nomadology – Some Rights Reserved I’ve been getting questions about where to begin if you want to gamify your classes and I thought I’d share some of what has worked for me here. To begin I just want to say that gamification can happen without spending any money. I think the most important aspect of gamification be a change in how you run your classroom especially the way teachers traditionally grade, assess, and show students how they are doing. Gamification refers to using some form of game mechanics from video games in a non-video game setting. The biggest difference I see between gamification and traditional grading is that in a gamified setting students start with a zero or they are a level 1 player. If anyone is getting started in gamification I highly recommend that you read Lee Sheldon’s book, The Multiplayer Classroom. I have seen and would like to try a free option for gamifying a course and having an LMS type resource, and that is ClassCraft.
Cryptography When I wrote my first book, Fermat’s Last Theorem, I made a passing reference to the mathematics of cryptography. Although I did not know it at the time, this was the start of a major interest in the history and science of codes and code breaking, which has resulted in a 400-page book on the subject, an adaptation of the book for teenagers, a 5-part TV series, numerous talks and lectures, the purchase of an Enigma cipher machine and the development of an interactive crypto CD-ROM. In the Crypto Corner, you will find details about my book on cryptography (The Code Book), information about my TV series based on the book (The Science of Secrecy) and you can explore the Black Chamber, which is an interactive encryption and codebreaking section. You will also find a section about the Cipher Challenge, there are some cryptograms (coded messages) for you to try and crack, a free downloadable CD-ROM version of The Code Book, and a quick Q&A based on the questions I am most often asked.
Code Names for the Classroom - MAKE LEARNING MAGICAL! Game Scenario:Two restaurants have been temporarily shut down due to a failed restaurant inspection. The Executive Chefs are on a race against the clock to find the source of the failed score and save their restaurant from closing forever. (Change the game scenario to match your content!) Materials needed:200 3x5 cards cut in half.The the map cards from the original Code Names gamePlastic stand from original game. Game Rules:1. 25 index card halves9 red, blue, and white tokens or squares (Buy on Amazon HERE)1 black token or square3 Code Name Map Cards (from original game)a pen 5. This game and storyline can be adapted to any subject area!
MP3Stego When looking at the steganographic tools available on the Net, it occurred to me that nothing had been done to hide information in MP3 files, that is sound tracks compressed using the MPEG Audio Layer III format. There is a growing interest world-wide in MP3 or indeed WMA files because they offer near-CD quality at compression ratio of 11 to 1 (128 kilobits per second). This gives a very good opportunity for information hiding. Although WMA has better quality in general, I did not have access to code and only an implementation for MP3 is provided as a proof of concept. MP3Stego will hide information in MP3 files during the compression process. The hiding process takes place at the heart of the Layer III encoding process namely in the inner_loop. We have discussed earlier the power of parity for information hiding.