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| A '''push-button''' (often simply "'''button'''") is a simple ] mechanism for ]ling some aspect of a ]. Buttons are typically made out of hard material, usually ] or ]. The surface is usually flat or shaped to accommodate the human finger or hand, so as to be easily depressed or ]ed. Buttons are most often ], though even un-biased buttons (due to their physical nature) require a ] to return to their un-pushed state. | A '''push-button''' (often simply "'''button'''") is a simple ] mechanism for ]ling some aspect of a ]. Buttons are typically made out of hard material, usually ] or ]. The surface is usually flat or shaped to accommodate the human finger or hand, so as to be easily depressed or ]ed. Buttons are most often ], though even many un-biased buttons (due to their physical nature) require a ] to return to their un-pushed state. | ||
| Some buttons, such as old ], come in pairs and reside over an internal lever. These buttons | |||
| alternate being raised or depressed. | |||
| In ], the phrase "'''the button'''" (sometimes capitalized) refers to a (usually fictional) button that a military or government leader could press to launch ]s. | In ], the phrase "'''the button'''" (sometimes capitalized) refers to a (usually fictional) button that a military or government leader could press to launch ]s. | ||
Revision as of 18:36, 5 August 2007
A push-button (often simply "button") is a simple switch mechanism for controlling some aspect of a machine. Buttons are typically made out of hard material, usually plastic or metal. The surface is usually flat or shaped to accommodate the human finger or hand, so as to be easily depressed or pushed. Buttons are most often biased switches, though even many un-biased buttons (due to their physical nature) require a spring to return to their un-pushed state.
Some buttons, such as old light switches, come in pairs and reside over an internal lever. These buttons alternate being raised or depressed.
In popular culture, the phrase "the button" (sometimes capitalized) refers to a (usually fictional) button that a military or government leader could press to launch nuclear weapons.
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