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Home » Discuss » Topic Forums » Election Reform

GAspnes

(1000+ posts) Send PM | Profile | Ignore

Sun Dec-19-04 09:49 PM
Response to Reply #4

17. slight correction

Touch screens are simply, thermally sensitive grids overlaying a computer screen or monitor.The grid is sensitive to body temperature. When Your finger touches the screen, the grid it senses the temperature change and records in xy coordinates.

Touch screens come in one of three technologies -- resistance wire, infra-red beam or capacitive. See Touch Screens. I've never heard of, nor used, a thermal touch-screen. Environmental conditions would flummox them and gloves, stylii and fingernails wouldn't register.

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