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Invisibility. By using two parabolic cylindric mirrors and one plane mirror, the image of the background is directed around an object, making the object itself invisible - at least from two sides. Invisibility is the state of an object that cannot be seen. An object in this state is said to be invisible (literally, "not visible").
Hidden text. Hidden text is computer text that is displayed in such a way as to be invisible or unreadable. Hidden text is most commonly achieved by setting the font colour to the same colour as the background, rendering the text invisible unless the user highlights it. Hidden text can serve several purposes. Often, websites use it to disguise ...
Invisible ink. A coded letter from Benedict Arnold, originally written in invisible ink. Handwriting by Peggy Shippen Arnold is interspersed with coded communication in Arnold's hand. 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 ...
v. t. e. On Wikipedia, hidden text is text that is visible when editing the source for the page or when using VisualEditor, but not on the "rendered" version of the page presented to readers of the article. Invisible comments are useful for alerting other editors to issues such as common mistakes that regularly occur in the article, a section ...
The Invisible Man at Wikisource. The Invisible Man is an 1897 science fiction novel by British writer H. G. Wells. Originally serialised in Pearson's Weekly in 1897, it was published as a novel the same year. The Invisible Man to whom the title refers is Griffin, a scientist who has devoted himself to research into optics and who invents a way ...
The invisible hand is a metaphor inspired by the Scottish moral philosopher Adam Smith that describes the incentives which free markets sometimes create for self-interested people to act unintentionally in the public interest. Smith originally mentioned the term in two specific, but different, economic examples.
Nonprinting characters or formatting marks are characters for content designing in word processors, which are not displayed at printing. It is also possible to customize their display on the monitor. The most common nonprintable characters in word processors are pilcrow, space, nonbreaking space, tab character etc. [1][2]
Invisibility in fiction. Invisibility in fiction is a common plot device in stories, plays, films, animated works, video games, and other media, found in both the fantasy and science fiction genres. In fantasy, invisibility is often invoked and dismissed at will by a person, with a magic spell or potion, or a cloak, ring or other object.