Gorilla arm

The side-effect that destroyed touch-screens as a mainstream input technology despite a promising start in the early 1980s. It seems the designers of all those spiffy touch-menu systems failed to notice that humans aren’t designed to hold their arms in front of their faces making small motions. After more than a very few selections, the arm begins to feel sore, cramped, and oversized – the operator looks like a gorilla while using the touch screen and feels like one afterward. This is now considered a classic cautionary tale to human-factors designers; “Remember the gorilla arm!” is shorthand for “How is this going to fly in *real* use?”.


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  • Gorilla

    [guh-ril-uh] /gəˈrɪl ə/ noun 1. the largest of the anthropoid apes, Gorilla gorilla, terrestrial and vegetarian, of western equatorial Africa and the Kivu highlands, comprising the subspecies G. g. gorilla (western lowland gorilla) G. g. graueri (eastern lowland gorilla) and G. g. beringei (mountain gorilla) now rare. 2. an ugly, brutish person. 3. Slang. a […]

  • Gorillagram

    /ɡəˈrɪləˌɡræm/ noun 1. (informal) a jocular greetings message delivered to someone celebrating a birthday, engagement, etc, by a person dressed as a gorilla

  • Gorilla juice

    noun phrase Anabolic steroids and other substances used by body-builders, weightlifters, etc, to increase bulk and musculature (1980s+)

  • Goriness

    [gawr-ee, gohr-ee] /ˈgɔr i, ˈgoʊr i/ adjective, gorier, goriest. 1. covered or stained with ; bloody. 2. resembling . 3. involving much bloodshed and violence: a gory battle. 4. unpleasant or disagreeable: to reveal the gory details of a divorce. /ˈɡɔːrɪ/ adjective gorier, goriest 1. horrific or bloodthirsty: a gory story 2. involving bloodshed and […]

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