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Decoder Pen
The decoder pen, yes-no pen, yes-know pen or magic pen book is a combination of decoder pen or marker specially designed to reveal invisible ink-encoded pictures or writing, in the form of answers to questions or hidden parts of pictures, with specially created children's books with hidden words and pictures. They were most popular in the 1970s, but continue to be sold at gift shops. Often they were in the form of trivia games, which enabled the player to guess before revealing the answer. Brands of books for use with decoder pens include Yes & Know, and surprise Ink. However, the pen and paper can be damaged easily if excessive rubbing is used. Therefore, most invisible ink books contain an advisory saying to use a very gentle back and forth motion - not a circular grinding motion, when using the books. Fans of the adventure games released by Sierra Entertainment in the 1980s such as ''King's Quest'' and ''Space Quest'' are also familiar with the decoder pen, which was used to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marker Pen
A marker pen, fine liner, marking pen, felt-tip pen, felt pen, flow marker, sign pen (in South Korea), vivid (in New Zealand), texta (in Australia), sketch pen (in South Asia) or koki (in South Africa), is a pen which has its own ink source and a tip made of porous, pressed fibers such as felt. A marker pen consists of a container (glass, aluminum or plastic) and a core of an absorbent material that holds the ink. The upper part of the marker contains the nib that was made in earlier times of a hard felt material, and a cap to prevent the marker from drying out. Until the early 1990s, the most common solvents that were used for the ink in permanent markers were toluene and xylene. These two substances are both harmful and characterized by a very strong smell. Today, the ink is usually made on the basis of alcohols (e.g. 1-Propanol, 1-butanol, diacetone alcohol and cresols). Markers may be waterproof, dry-erase, wet-erase (e.g. transparency markers), or permanent. Histor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Invisible Ink
Invisible ink, also known as security ink or sympathetic ink, is a substance used for writing, which is invisible either on application or soon thereafter, and can later be made visible by some means, such as heat or ultraviolet light. Invisible ink is one form of steganography. History One of the earliest writers to mention an invisible ink is Aeneas Tacticus, in the 4th century BC. He mentions it in discussing how to survive under siege but does not indicate the type of ink to be used. This was part of his list of the 20 different methods of secret communications in a book called ''On the Defense of Fortifications''. One of the techniques that involved steganography involved puncturing a tiny hole above or below letters in a document to spell out a secret message. This did not include an invisible ink but the Germans improved on the method during World War I and World War II. They used invisible ink and microdots instead of pinpricks. Philo of Byzantium may be the first writer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Children's Books
A child (plural, : children) is a human being between the stages of childbirth, birth and puberty, or between the Development of the human body, developmental period of infancy and puberty. The legal definition of ''child'' generally refers to a minor (law), minor, otherwise known as a person younger than the age of majority. Children generally have fewer Children's rights, rights and responsibilities than adults. They are classed as unable to make serious decisions. ''Child'' may also describe a relationship with a parent (such as sons and daughters of any age) or, metaphorically, an authority figure, or signify group membership in a clan, tribe, or religion; it can also signify being strongly affected by a specific time, place, or circumstance, as in "a child of nature" or "a child of the Sixties." Biological, legal and social definitions In the biological sciences, a child is usually defined as a person between birth and puberty, or between the developmental period of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sierra Entertainment
Sierra Entertainment, Inc. (formerly On-Line Systems and Sierra On-Line, Inc.) was an American video game developer and publisher founded in 1979 by Ken and Roberta Williams. The company is known for pioneering the graphic adventure game genre, including the first such game, ''Mystery House''. It is also known for its graphical adventure game series ''King's Quest'', ''Space Quest'', ''Police Quest'', ''Gabriel Knight'', ''Leisure Suit Larry'', and ''Quest for Glory'', as well as being the original publishers of Valve's ''Half-Life'' series. After seventeen years as an independent company, Sierra was acquired by CUC International in February 1996 to become part of CUC Software. However, CUC International was caught in an accounting scandal in 1998, and many of the original founders of Sierra including the Williamses left the company. Sierra remained as part of CUC Software as it was sold and renamed several times over the next few years; Sierra was formally disestablished as a c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
King's Quest
''King's Quest'' is a graphic adventure game series, released between 1980 and 2016 and created by the American software company Sierra Entertainment. It is widely considered a classic series from the golden era of adventure games. Following the success of its first installments, the series was primarily responsible for building the reputation of Sierra. Roberta Williams, co-founder and former co-owner of Sierra, designed all of the ''King's Quest'' games until the series' reboot in 2015. The ''King's Quest'' series chronicles the saga of the royal family of the Kingdom of Daventry through their various trials and adventures. The story takes place over two generations and across many lands as the heroes and heroines fight villains such as evil witches and wizards. Games *''Wizard and the Princess'' (1980) / ''Adventure in Serenia'' (1982) *''King's Quest'' (PC, 1984) / ''King's Quest: Quest for the Crown'' (1984/1987) / ''King's Quest: Quest for the Crown'' (Sega Master Sys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space Quest
''Space Quest'' is a series of six comic science fiction adventure games released between 1986 and 1995. The games follow the adventures of a hopeless janitor named Roger Wilco, who campaigns through the galaxy for "truth, justice and really clean floors". Initially created for Sierra On-Line by Mark Crowe and Scott Murphy (who called themselves the "Two Guys from Andromeda"), the games parodied both science fiction properties such as ''Star Wars'' and ''Star Trek'' (the theme song itself is a parody of the ''Star Wars'' theme), as well as pop-culture phenomena from McDonald's to Microsoft. The series featured a silly sense of humor heavily reliant on puns and wacky storylines. Roger Wilco, a perpetual loser, is often depicted as the underdog who repeatedly saves the universe (often by accident), only to be either ignored or punished for violating minor regulations in the process. Development Scott Murphy and Mark Crowe, who had already worked together on the Sierra game '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Infocom
Infocom was an American software company based in Cambridge, Massachusetts, that produced numerous works of interactive fiction. They also produced a business application, a relational database called ''Cornerstone (software), Cornerstone''. Infocom was founded on June 22, 1979, by staff and students of Massachusetts Institute of Technology, and lasted as an independent company until 1986, when it was bought by Activision. Activision shut down the Infocom division in 1989, although they released some titles in the 1990s under the Infocom ''Zork'' brand. Activision abandoned the Infocom trademark in 2002. Overview Infocom games are text adventures where users direct the action by entering short strings of words to give commands when prompted. Generally the program will respond by describing the results of the action, often the contents of a room if the player has moved within the virtual world. The user reads this information, decides what to do, and enters another short serie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Invisiclues
InvisiClues were hint booklets sold by Infocom to help players solve puzzles in their interactive fiction computer games.InvisiClues Introduction from the Infocom Homepage (hosted by ) Before Infocom's games exploded in popularity, players could request hints by mail and receive a type-written sheet in response. When the number of requests proved unmanageable, the Zork Users Group began a pay-per-hint telephone system. The invention of InvisiClues replaced this system and was revolutionary: a player could often buy a hint book at the same time and at the same location as the game itself. Questions relating to the gam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interactive Fiction
'' Interactive fiction, often abbreviated IF, is software simulating environments in which players use text commands to control characters and influence the environment. Works in this form can be understood as literary narratives, either in the form of interactive narratives or interactive narrations. These works can also be understood as a form of video game, either in the form of an adventure game or role-playing game. In common usage, the term refers to text adventures, a type of adventure game where the entire interface can be " text-only", however, graphical text adventures still fall under the text adventure category if the main way to interact with the game is by typing text. Some users of the term distinguish between interactive fiction, known as "Puzzle-free", that focuses on narrative, and "text adventures" that focus on puzzles. Due to their text-only nature, they sidestepped the problem of writing for widely divergent graphics architectures. This feature meant that i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Writing Implements
A writing implement or writing instrument is an object used to produce writing. Writing consists of different figures, lines, and or forms. Most of these items can be also used for other functions such as painting, drawing and technical drawing, but writing instruments generally have the ordinary requirement to create a smooth, controllable line. Another writing implement employed by a smaller population is the stylus used in conjunction with the slate for punching out the dots in Braille. Autonomous An autonomous writing implement is one that cannot "run out"—the only way to render it useless is to destroy it. Without pigment The oldest known examples were created by incising a flat surface with a rigid tool rather than applying pigment with a secondary object, e.g., Chinese jiaguwen carved into turtle shells. However, this may simply represent the relative durability of such artifacts rather than truly representing the evolution of techniques, as the meaningful application ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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