October 20, 2011
The digerati [dij-uh-rah-tee] are people highly skilled in the processing and manipulation of digital information; wealthy or scholarly techno-geeks. They are the elite of the computer industry and online communities. The word is a portmanteau, derived from ‘digital’ and ‘literati,’ and reminiscent of the earlier coinage glitterati (wealthy or famous people who conspicuously or ostentatiously attend fashionable events). Famous computer scientists, tech magazine writers and well-known bloggers are included among the digerati. The word is used in several related but different ways. It can mean: Opinion leaders who, through their writings, promoted a vision of digital technology and the Internet as a transformational element in society; people regarded as celebrities within the Silicon Valley computer subculture, particularly during the dot-com boom years; and anyone regarded as influential within the digital technology community.
The first mention of the word Digerati on USENET occurred in 1992, and referred to an article by George Gilder in ‘Upside’ magazine. According to William Safire, the term was coined by New York Times editor Tim Race in a 1992. In Race’s words: ‘Actually the first use of ‘digerati’ was in a article, ‘Pools of Memory, Waves of Dispute,’ by John Markoff, into which I edited the term. The article was about a controversy engendered by a George Gilder article that had recently appeared in ‘Upside’ magazine.’
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October 19, 2011
After Dark is a series of computer screensaver software introduced in 1989 by Berkeley Systems for the Macintosh, and later for Windows. Following the original, new editions were introduced including ‘More After Dark’ and ‘Before Dark,’ as well as editions themed around licensed properties such as ‘Star Trek,’ ‘The Simpsons,’ and Disney. The screensaver modules were often noted for their intertextuality, such as the flying toasters appearing in the Fish screensaver, and the cat from Boris screensaver appearing in the Bad Dog screensaver.
Of the screensaver modules included, the most famous is the iconic Flying Toasters which featured 1940s-style chrome toasters sporting bird-like wings, flying across the screen with pieces of toast. A slider enabled users to adjust the toast’s darkness and an updated Flying Toasters Pro module added a choice of music: Richard Wagner’s ‘Ride of the Valkyries’ or a flying toaster anthem with optional karaoke lyrics. Yet another version called ‘Flying Toasters!’ added bagels and pastries, baby toasters, and more elaborate toaster animation.
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October 18, 2011
Pseudorealism is an artistic and a dramatic technique in which an apparently unreal matter is presented in a fashion that makes it appear real. Though use of pseudorealism has been in practice for sometime in theater, film, fashion, textiles and literature, as an art genre, it was initiated in Indian art in early 21st century by Devajyoti Ray.
The idea that something unreal can still give the impression of the real has a parallel in mathematical field of representation theory. The idea has also often been used to describe certain set of movies, TV programs, and video games where special effects, computer generated imagery and 3D animation are used to create a fantasy but which has the impact of a reality based image. However in this context the word has a negative connotation.
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October 18, 2011
A digital mashup refers to digital media content (e.g. text, graphics, audio, video, animation) drawn from pre-existing sources, to create a new derivative work. Digital media have made it easier for potential mashup creators to create derivative works than was the case in the past, when significant technical equipment and knowledge was required to manipulate analog content. Mashups raise significant questions of intellectual property and copyright. While questioning the law, mashups are also questioning the very act of creation. Are the artists creating when they use other individuals’ work? How will artists prove their creative input?
A major contributing factor to the spread of digital mashups is the World Wide Web, which provides channels both for acquiring source material and for distributing derivative works, both often at negligible cost. Web or cloud computing based applications are a combination of separate parts brought together with the use of the open architecture of public Application Programming Interfaces (API). For example, a mashup between Google Maps and Weather.com could be made available as an iphone application, where the content and context of that content are drawn from outside sources through the published API.
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October 17, 2011
The Spamhaus Project is an international organization (founded by Steve Linford in 1998) to track e-mail spammers and spam-related activity. It is named for the anti-spam jargon term coined by Linford, ‘spamhaus,’ a pseudo-German expression for an ISP or other firm which spams or willingly provides service to spammers.
Spamhaus is responsible for a number of very widely used anti-spam DNS-based Blocklists (DNSBLs) and Whitelists (DNSWLs). Many internet service providers and Internet networks use these services to reduce the amount of spam they take on. The Spamhaus blocks 80 billion spam emails per day globally on the internet (almost 1 million spams per second). Like all DNSBLs, their use is considered controversial by some.
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October 15, 2011
A facial composite is a graphical representation of an eyewitness’s memory of a face, as recorded by a composite artist. Facial composites are used mainly by police in their investigation of (usually serious) crimes. Construction of the composite was originally performed by a trained artist, through drawing, sketching, or painting, in consultation with a witness or crime victim. In the 1960s techniques were devised for use by those less artistically skilled, employing interchangeable templates of separate facial features, such as ‘Photofit’ in the UK and Smith & Wesson’s ‘Identi-Kit’ in the US. In the last two decades, a number of computer based facial composite systems have been introduced, amongst the most widely used systems are ‘Identi-Kit 2000,’ ‘FACES,’ and ‘E-FIT.’ In the U.S. the FBI maintains that hand-drawing is its preferred method for constructing a facial composite. Many other police agencies, however, use software, since suitable artistic talent is often not available.
Until quite recently, the facial composite systems used by international police forces were exclusively based on a construction methodology in which individual facial features (eyes, nose, mouth, eyebrows, etc.) are selected one at a time from a large database and then electronically ’overlaid’ to make the composite image. Such systems are often referred to as feature-based since they essentially rely on the selection of individual features in isolation. However, after a long period of research and development work conducted largely within British Universities, systems based on a rather different principle are finding increasing use by police forces. These systems may be broadly described as holistic or global in that they primarily attempt to create a likeness to the suspect through an evolutionary mechanism in which a witness’s response to groups of complete faces (not just features) converges towards an increasingly accurate image.
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October 15, 2011
The ring of steel is the popular name for the security and surveillance cordon surrounding the City of London, installed to deter the IRA and other threats. The term was borrowed from an earlier stage of the Troubles when the centre of Belfast was fortified against attacks, the perimeter of which was known as the ring of steel. Roads entering the City are narrowed and have small chicanes to force drivers to slow down and be recorded by CCTV cameras. These roads typically have a concrete median with a sentry box where police can stand guard and monitor traffic. City planners call these types of precautions ‘fortress urbanism.’
Initially the ring of steel consisted of plastic cones and on duty policemen which the locals described as the ‘ring of plastic.’ It served the purpose of providing a visible sign to the public that the City authorities were taking the threats of more attacks by the IRA seriously. This was replaced by more permanent structures consisting of concrete barriers, checkpoints and thousands of video cameras. Following IRA ceasefires the police presence was curtailed. However, following the September 11 attacks, and a reported increased terrorist threat to the United Kingdom, security was stepped up again somewhat, with occasional spot checks on vehicles entering the cordon, although not to previous levels.
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October 14, 2011
Future Shock is a book written by the futurist Alvin Toffler in 1970. In the book, Toffler defines the term ‘future shock’ as a certain psychological state of individuals and entire societies. His shortest definition for the term is a personal perception of ‘too much change in too short a period of time.’ The book, which became an international bestseller, grew out of an article ‘The Future as a Way of Life’ in ‘Horizon’ magazine in 1965.
Toffler argues that society is undergoing an enormous structural change, a revolution from an industrial society to a ‘super-industrial society.’ This change will overwhelm people, the accelerated rate of technological and social change leaving them disconnected and suffering from ‘shattering stress and disorientation’ – future shocked. Toffler stated that the majority of social problems were symptoms of the future shock. In his discussion of the components of such shock, he also popularized the term ‘information overload.’
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October 13, 2011
Binaural [bahy-nawr-uhl] beats or binaural tones are auditory processing artifacts, or apparent sounds, the perception of which arises in the brain for specific physical stimuli. This effect was discovered in 1839 by Heinrich Wilhelm Dove, and earned greater public awareness in the late 20th century based on claims that binaural beats could help induce relaxation, meditation, creativity and other desirable mental states. The effect on the brainwaves depends on the difference in frequencies of each tone, for example, if 300 Hz was played in one ear and 310 in the other, then the Binaural beat would have a frequency of 10 Hz.
The brain produces a phenomenon resulting in low-frequency pulsations in the amplitude and sound localization of a perceived sound when two tones at slightly different frequencies are presented separately, one to each of a subject’s ears, using stereo headphones. A beating tone will be perceived, as if the two tones mixed naturally, out of the brain. The frequencies of the tones must be below 1,000 hertz for the beating to be noticeable. The difference between the two frequencies must be small (less than or equal to 30 Hz) for the effect to occur; otherwise, the two tones will be heard separately and no beat will be perceived. Binaural beats reportedly influence the brain in more subtle ways through the entrainment of brainwaves and have been claimed to reduce anxiety and provide other health benefits such as control over pain.
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October 13, 2011
A mind machine (or psychowalkman) uses pulsing rhythmic sound and/or flashing light to alter the brainwave frequency of the user. Mind machines are said to induce deep states of relaxation, concentration, and in some cases altered states of consciousness that have been compared to those obtained from meditation and shamanic rituals. The process applied by these machines is also known as brainwave synchronization or entrainment. Mind machines typically consist of a control unit, a pair of headphones and/or strobe light goggles. The unit controls the sessions and drives the LEDs in the goggles. Professionally, they are usually referred to as Auditory Visual Stimulation devices (AVS). Sessions will typically aim at directing the average brainwave frequency from a high level to a lower level by ramping down in several sequences. Target frequencies typically correspond to delta (1-3 hertz), theta (4–7 Hz), alpha (8–12 Hz) or beta brain waves (13–40 Hz), and can be adjusted by the user based on the desired effects.
There have been a number of claims regarding binaural beats (auditory processing artifacts or apparent sounds), among them that they may help people memorize and learn, stop smoking, tackle erectile dysfunction and improve athletic performance. However, research into binaural beats is very limited. No conclusive studies have been released to support marketing claims for binaural beat systems. Mind machines are often used together with biofeedback or neurofeedback equipment in order to adjust the frequency on the fly. Modern mind machines can connect to the Internet to update the software and download new sessions. When sessions are used in conjunction with meditation, neurofeedback, etc. the effect can be amplified. Rapidly flashing lights may be dangerous for people with photosensitive epilepsy or other nervous disorders. It is thought that one out of 10,000 adults will experience a seizure while viewing such a device; about twice as many children will have a similar ill effect.
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October 11, 2011
A Friendly Artificial Intelligence or FAI is an artificial intelligence (AI) that has a positive rather than negative effect on humanity. Friendly AI also refers to the field of knowledge required to build such an AI. This term particularly applies to AIs which have the potential to significantly impact humanity, such as those with intelligence comparable to or exceeding that of humans (e.g. superintelligence, strong AI, technological singularity).
This specific term was coined by Eliezer Yudkowsky of the Singularity Institute for Artificial Intelligence as a technical term distinct from the everyday meaning of the word ‘friendly,’ however, the concern is much older.
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October 11, 2011
Humans United Against Robots (often abbreviated as HUAR) is a semi-tongue-in-cheek organization designed to unify the human race and prepare them for a futuristic robotic uprising. HUAR was created by humorist Keith Malley.
‘HUAR was designed to educate and awaken the citizenry of the world to the impending attack that computers and robots will put into effect against humans. It is a collection of human beings that spread the word of this impending doom as well as doing what they can to help minimize the threat. Between computer programs that can identify human speech and match that up with their computerized dictionaries in order to understand our weaknesses to jokester scientists building robots specifically made to breathe fire from their mouths and shoot lasers from their eyes, it is evident that a task force had to be formed of members that take being at the top of the food chain seriously. Robots will uprise. HUAR will be there.’
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